Merge commit '3a16ec19d2426457419cb8a7304f97982699efda'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90
91 Licensing options:
92   --enable-gpl             allow use of GPL code, the resulting libs
93                            and binaries will be under GPL [no]
94   --enable-version3        upgrade (L)GPL to version 3 [no]
95   --enable-nonfree         allow use of nonfree code, the resulting libs
96                            and binaries will be unredistributable [no]
97
98 Configuration options:
99   --disable-static         do not build static libraries [no]
100   --enable-shared          build shared libraries [no]
101   --enable-small           optimize for size instead of speed
102   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
103   --enable-gray            enable full grayscale support (slower color)
104   --disable-swscale-alpha  disable alpha channel support in swscale
105   --disable-all            disable building components, libraries and programs
106   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
107   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
108
109 Program options:
110   --disable-programs       do not build command line programs
111   --disable-ffmpeg         disable ffmpeg build
112   --disable-ffplay         disable ffplay build
113   --disable-ffprobe        disable ffprobe build
114   --disable-ffserver       disable ffserver build
115
116 Documentation options:
117   --disable-doc            do not build documentation
118   --disable-htmlpages      do not build HTML documentation pages
119   --disable-manpages       do not build man documentation pages
120   --disable-podpages       do not build POD documentation pages
121   --disable-txtpages       do not build text documentation pages
122
123 Component options:
124   --disable-avdevice       disable libavdevice build
125   --disable-avcodec        disable libavcodec build
126   --disable-avformat       disable libavformat build
127   --disable-avutil         disable libavutil build
128   --disable-swresample     disable libswresample build
129   --disable-swscale        disable libswscale build
130   --disable-postproc       disable libpostproc build
131   --disable-avfilter       disable libavfilter build
132   --enable-avresample      enable libavresample build [no]
133   --disable-pthreads       disable pthreads [auto]
134   --disable-w32threads     disable Win32 threads [auto]
135   --disable-os2threads     disable OS/2 threads [auto]
136   --disable-network        disable network support [no]
137   --disable-dct            disable DCT code
138   --disable-dwt            disable DWT code
139   --disable-error-resilience disable error resilience code
140   --disable-lsp            disable LSP code
141   --disable-lzo            disable LZO decoder code
142   --disable-mdct           disable MDCT code
143   --disable-rdft           disable RDFT code
144   --disable-fft            disable FFT code
145
146 Hardware accelerators:
147   --disable-dxva2          disable DXVA2 code [autodetect]
148   --disable-vaapi          disable VAAPI code [autodetect]
149   --enable-vda             enable VDA code
150   --disable-vdpau          disable VDPAU code [autodetect]
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190   --enable-avisynth        enable reading of AviSynth script files [no]
191   --disable-bzlib          disable bzlib [autodetect]
192   --enable-fontconfig      enable fontconfig
193   --enable-frei0r          enable frei0r video filtering
194   --enable-gnutls          enable gnutls [no]
195   --disable-iconv          disable iconv [autodetect]
196   --enable-ladspa          enable LADSPA audio filtering
197   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
198   --enable-libass          enable libass subtitles rendering [no]
199   --enable-libbluray       enable BluRay reading using libbluray [no]
200   --enable-libcaca         enable textual display using libcaca
201   --enable-libcelt         enable CELT decoding via libcelt [no]
202   --enable-libcdio         enable audio CD grabbing with libcdio
203   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
204                            and libraw1394 [no]
205   --enable-libfaac         enable AAC encoding via libfaac [no]
206   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
207   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
208   --enable-libfreetype     enable libfreetype [no]
209   --enable-libgme          enable Game Music Emu via libgme [no]
210   --enable-libgsm          enable GSM de/encoding via libgsm [no]
211   --enable-libiec61883     enable iec61883 via libiec61883 [no]
212   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
213   --enable-libmodplug      enable ModPlug via libmodplug [no]
214   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
215   --enable-libnut          enable NUT (de)muxing via libnut,
216                            native (de)muxer exists [no]
217   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
218   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
219   --enable-libopencv       enable video filtering via libopencv [no]
220   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
221   --enable-libopus         enable Opus decoding via libopus [no]
222   --enable-libpulse        enable Pulseaudio input via libpulse [no]
223   --enable-libquvi         enable quvi input via libquvi [no]
224   --enable-librtmp         enable RTMP[E] support via librtmp [no]
225   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
226   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
227   --enable-libsoxr         enable Include libsoxr resampling [no]
228   --enable-libspeex        enable Speex de/encoding via libspeex [no]
229   --enable-libssh          enable SFTP protocol via libssh [no]
230   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
231   --enable-libtheora       enable Theora encoding via libtheora [no]
232   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
233   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
234   --enable-libv4l2         enable libv4l2/v4l-utils [no]
235   --enable-libvidstab      enable video stabilization using vid.stab [no]
236   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
237   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
238   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
239                            native implementation exists [no]
240   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
241   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
242   --enable-libx264         enable H.264 encoding via x264 [no]
243   --enable-libxavs         enable AVS encoding via xavs [no]
244   --enable-libxvid         enable Xvid encoding via xvidcore,
245                            native MPEG-4/Xvid encoder exists [no]
246   --enable-libzmq          enable message passing via libzmq [no]
247   --enable-libzvbi         enable teletext support via libzvbi [no]
248   --enable-openal          enable OpenAL 1.1 capture support [no]
249   --enable-opencl          enable OpenCL code
250   --enable-openssl         enable openssl [no]
251   --enable-x11grab         enable X11 grabbing [no]
252   --disable-zlib           disable zlib [autodetect]
253
254 Advanced options (experts only):
255   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
256   --enable-cross-compile   assume a cross-compiler is used
257   --sysroot=PATH           root of cross-build tree
258   --sysinclude=PATH        location of cross-build system headers
259   --target-os=OS           compiler targets OS [$target_os]
260   --target-exec=CMD        command to run executables on target
261   --target-path=DIR        path to view of build directory on target
262   --target-samples=DIR     path to samples directory on target
263   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
264   --toolchain=NAME         set tool defaults according to NAME
265   --nm=NM                  use nm tool NM [$nm_default]
266   --ar=AR                  use archive tool AR [$ar_default]
267   --as=AS                  use assembler AS [$as_default]
268   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --cxx=CXX                use C compiler CXX [$cxx_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD [$ld_default]
273   --host-cc=HOSTCC         use host C compiler HOSTCC
274   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
275   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276   --host-ld=HOSTLD         use host linker HOSTLD
277   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
278   --host-libs=HLIBS        use libs HLIBS when linking for host
279   --host-os=OS             compiler host OS [$target_os]
280   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
281   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
282   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283   --extra-libs=ELIBS       add ELIBS [$ELIBS]
284   --extra-version=STRING   version string suffix []
285   --optflags=OPTFLAGS      override optimization-related compiler flags
286   --build-suffix=SUFFIX    library name suffix []
287   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
288   --progs-suffix=SUFFIX    program name suffix []
289   --arch=ARCH              select architecture [$arch]
290   --cpu=CPU                select the minimum required CPU (affects
291                            instruction selection, may crash on older CPUs)
292   --enable-pic             build position-independent code
293   --enable-sram            allow use of on-chip SRAM
294   --enable-thumb           compile for Thumb instruction set
295   --disable-symver         disable symbol versioning
296   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297   --disable-safe-bitstream-reader
298                            disable buffer boundary checking in bitreaders
299                            (faster, but may crash)
300   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
301   --enable-lto             use link-time optimization
302
303 Optimization options (experts only):
304   --disable-asm            disable all assembler optimizations
305   --disable-altivec        disable AltiVec optimizations
306   --disable-amd3dnow       disable 3DNow! optimizations
307   --disable-amd3dnowext    disable 3DNow! extended optimizations
308   --disable-mmx            disable MMX optimizations
309   --disable-mmxext         disable MMXEXT optimizations
310   --disable-sse            disable SSE optimizations
311   --disable-sse2           disable SSE2 optimizations
312   --disable-sse3           disable SSE3 optimizations
313   --disable-ssse3          disable SSSE3 optimizations
314   --disable-sse4           disable SSE4 optimizations
315   --disable-sse42          disable SSE4.2 optimizations
316   --disable-avx            disable AVX optimizations
317   --disable-fma4           disable FMA4 optimizations
318   --disable-avx2           disable AVX2 optimizations
319   --disable-armv5te        disable armv5te optimizations
320   --disable-armv6          disable armv6 optimizations
321   --disable-armv6t2        disable armv6t2 optimizations
322   --disable-vfp            disable VFP optimizations
323   --disable-neon           disable NEON optimizations
324   --disable-vis            disable VIS optimizations
325   --disable-inline-asm     disable use of inline assembler
326   --disable-yasm           disable use of yasm assembler
327   --disable-mips32r2       disable MIPS32R2 optimizations
328   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
329   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
330   --disable-mipsfpu        disable floating point MIPS optimizations
331   --disable-fast-unaligned consider unaligned accesses slow
332
333 Developer options (useful when working on FFmpeg itself):
334   --disable-debug          disable debugging symbols
335   --enable-debug=LEVEL     set the debug level [$debuglevel]
336   --disable-optimizations  disable compiler optimizations
337   --enable-extra-warnings  enable more compiler warnings
338   --disable-stripping      disable stripping of executables and shared libraries
339   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
340                            2 causes a slowdown at runtime.
341   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
342   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
343                            leaks and errors, using the specified valgrind binary.
344                            Cannot be combined with --target-exec
345   --enable-ftrapv          Trap arithmetic overflows
346   --samples=PATH           location of test samples for FATE, if not set use
347                            \$FATE_SAMPLES at make invocation time.
348   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
349                            should be used only for debugging purposes)
350   --enable-random          randomly enable/disable components
351   --disable-random
352   --enable-random=LIST     randomly enable/disable specific components or
353   --disable-random=LIST    component groups. LIST is a comma-separated list
354                            of NAME[:PROB] entries where NAME is a component
355                            (group) and PROB the probability associated with
356                            NAME (default 0.5).
357   --random-seed=VALUE      seed value for --enable/disable-random
358
359 NOTE: Object files are built at the place where configure is launched.
360 EOF
361   exit 0
362 }
363
364 quotes='""'
365
366 log(){
367     echo "$@" >> $logfile
368 }
369
370 log_file(){
371     log BEGIN $1
372     pr -n -t $1 >> $logfile
373     log END $1
374 }
375
376 echolog(){
377     log "$@"
378     echo "$@"
379 }
380
381 warn(){
382     log "WARNING: $*"
383     WARNINGS="${WARNINGS}WARNING: $*\n"
384 }
385
386 die(){
387     echolog "$@"
388     cat <<EOF
389
390 If you think configure made a mistake, make sure you are using the latest
391 version from Git.  If the latest version fails, report the problem to the
392 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
393 EOF
394     if disabled logging; then
395         cat <<EOF
396 Rerun configure with logging enabled (do not use --disable-logging), and
397 include the log this produces with your report.
398 EOF
399     else
400         cat <<EOF
401 Include the log file "$logfile" produced by configure as this will help
402 solving the problem.
403 EOF
404     fi
405     exit 1
406 }
407
408 # Avoid locale weirdness, besides we really just want to translate ASCII.
409 toupper(){
410     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
411 }
412
413 tolower(){
414     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
415 }
416
417 c_escape(){
418     echo "$*" | sed 's/["\\]/\\\0/g'
419 }
420
421 sh_quote(){
422     v=$(echo "$1" | sed "s/'/'\\\\''/g")
423     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
424     echo "$v"
425 }
426
427 cleanws(){
428     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
429 }
430
431 filter(){
432     pat=$1
433     shift
434     for v; do
435         eval "case $v in $pat) echo $v ;; esac"
436     done
437 }
438
439 filter_out(){
440     pat=$1
441     shift
442     for v; do
443         eval "case $v in $pat) ;; *) echo $v ;; esac"
444     done
445 }
446
447 map(){
448     m=$1
449     shift
450     for v; do eval $m; done
451 }
452
453 add_suffix(){
454     suffix=$1
455     shift
456     for v; do echo ${v}${suffix}; done
457 }
458
459 set_all(){
460     value=$1
461     shift
462     for var in $*; do
463         eval $var=$value
464     done
465 }
466
467 set_weak(){
468     value=$1
469     shift
470     for var; do
471         eval : \${$var:=$value}
472     done
473 }
474
475 sanitize_var_name(){
476     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
477 }
478
479 set_safe(){
480     var=$1
481     shift
482     eval $(sanitize_var_name "$var")='$*'
483 }
484
485 get_safe(){
486     eval echo \$$(sanitize_var_name "$1")
487 }
488
489 pushvar(){
490     for pvar in $*; do
491         eval level=\${${pvar}_level:=0}
492         eval ${pvar}_${level}="\$$pvar"
493         eval ${pvar}_level=$(($level+1))
494     done
495 }
496
497 popvar(){
498     for pvar in $*; do
499         eval level=\${${pvar}_level:-0}
500         test $level = 0 && continue
501         eval level=$(($level-1))
502         eval $pvar="\${${pvar}_${level}}"
503         eval ${pvar}_level=$level
504         eval unset ${pvar}_${level}
505     done
506 }
507
508 enable(){
509     set_all yes $*
510 }
511
512 disable(){
513     set_all no $*
514 }
515
516 enable_weak(){
517     set_weak yes $*
518 }
519
520 disable_weak(){
521     set_weak no $*
522 }
523
524 enable_safe(){
525     for var; do
526         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527     done
528 }
529
530 disable_safe(){
531     for var; do
532         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
533     done
534 }
535
536 do_enable_deep(){
537     for var; do
538         enabled $var && continue
539         eval sel="\$${var}_select"
540         eval sgs="\$${var}_suggest"
541         pushvar var sgs
542         enable_deep $sel
543         popvar sgs
544         enable_deep_weak $sgs
545         popvar var
546     done
547 }
548
549 enable_deep(){
550     do_enable_deep $*
551     enable $*
552 }
553
554 enable_deep_weak(){
555     for var; do
556         disabled $var && continue
557         pushvar var
558         do_enable_deep $var
559         popvar var
560         enable_weak $var
561     done
562 }
563
564 enabled(){
565     test "${1#!}" = "$1" && op== || op=!=
566     eval test "x\$${1#!}" $op "xyes"
567 }
568
569 disabled(){
570     test "${1#!}" = "$1" && op== || op=!=
571     eval test "x\$${1#!}" $op "xno"
572 }
573
574 enabled_all(){
575     for opt; do
576         enabled $opt || return 1
577     done
578 }
579
580 disabled_all(){
581     for opt; do
582         disabled $opt || return 1
583     done
584 }
585
586 enabled_any(){
587     for opt; do
588         enabled $opt && return 0
589     done
590 }
591
592 disabled_any(){
593     for opt; do
594         disabled $opt && return 0
595     done
596     return 1
597 }
598
599 set_default(){
600     for opt; do
601         eval : \${$opt:=\$${opt}_default}
602     done
603 }
604
605 is_in(){
606     value=$1
607     shift
608     for var in $*; do
609         [ $var = $value ] && return 0
610     done
611     return 1
612 }
613
614 do_check_deps(){
615     for cfg; do
616         cfg="${cfg#!}"
617         enabled ${cfg}_checking && die "Circular dependency for $cfg."
618         disabled ${cfg}_checking && continue
619         enable ${cfg}_checking
620         append allopts $cfg
621
622         eval dep_all="\$${cfg}_deps"
623         eval dep_any="\$${cfg}_deps_any"
624         eval dep_sel="\$${cfg}_select"
625         eval dep_sgs="\$${cfg}_suggest"
626         eval dep_ifa="\$${cfg}_if"
627         eval dep_ifn="\$${cfg}_if_any"
628
629         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
630         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
631         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
632
633         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
634         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
635         enabled_all  $dep_all || disable $cfg
636         enabled_any  $dep_any || disable $cfg
637         disabled_any $dep_sel && disable $cfg
638
639         if enabled $cfg; then
640             enable_deep $dep_sel
641             enable_deep_weak $dep_sgs
642         fi
643
644         disable ${cfg}_checking
645     done
646 }
647
648 check_deps(){
649     unset allopts
650
651     do_check_deps "$@"
652
653     for cfg in $allopts; do
654         enabled $cfg || continue
655         eval dep_extralibs="\$${cfg}_extralibs"
656         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
657     done
658 }
659
660 print_config(){
661     pfx=$1
662     files=$2
663     shift 2
664     map 'eval echo "$v \${$v:-no}"' "$@" |
665     awk "BEGIN { split(\"$files\", files) }
666         {
667             c = \"$pfx\" toupper(\$1);
668             v = \$2;
669             sub(/yes/, 1, v);
670             sub(/no/,  0, v);
671             for (f in files) {
672                 file = files[f];
673                 if (file ~ /\\.h\$/) {
674                     printf(\"#define %s %d\\n\", c, v) >>file;
675                 } else if (file ~ /\\.asm\$/) {
676                     printf(\"%%define %s %d\\n\", c, v) >>file;
677                 } else if (file ~ /\\.mak\$/) {
678                     n = -v ? \"\" : \"!\";
679                     printf(\"%s%s=yes\\n\", n, c) >>file;
680                 } else if (file ~ /\\.texi\$/) {
681                     pre = -v ? \"\" : \"@c \";
682                     yesno = \$2;
683                     c2 = tolower(c);
684                     gsub(/_/, \"-\", c2);
685                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
686                 }
687             }
688         }"
689 }
690
691 print_enabled(){
692     suf=$1
693     shift
694     for v; do
695         enabled $v && printf "%s\n" ${v%$suf};
696     done
697 }
698
699 append(){
700     var=$1
701     shift
702     eval "$var=\"\$$var $*\""
703 }
704
705 prepend(){
706     var=$1
707     shift
708     eval "$var=\"$* \$$var\""
709 }
710
711 add_cppflags(){
712     append CPPFLAGS "$@"
713 }
714
715 add_cflags(){
716     append CFLAGS $($cflags_filter "$@")
717 }
718
719 add_cxxflags(){
720     append CXXFLAGS $($cflags_filter "$@")
721 }
722
723 add_asflags(){
724     append ASFLAGS $($asflags_filter "$@")
725 }
726
727 add_ldflags(){
728     append LDFLAGS $($ldflags_filter "$@")
729 }
730
731 add_extralibs(){
732     prepend extralibs $($ldflags_filter "$@")
733 }
734
735 add_host_cppflags(){
736     append host_cppflags "$@"
737 }
738
739 add_host_cflags(){
740     append host_cflags $($host_cflags_filter "$@")
741 }
742
743 add_host_ldflags(){
744     append host_ldflags $($host_ldflags_filter "$@")
745 }
746
747 add_compat(){
748     append compat_objs $1
749     shift
750     map 'add_cppflags -D$v' "$@"
751 }
752
753 check_cmd(){
754     log "$@"
755     "$@" >> $logfile 2>&1
756 }
757
758 cc_o(){
759     eval printf '%s\\n' $CC_O
760 }
761
762 cc_e(){
763     eval printf '%s\\n' $CC_E
764 }
765
766 check_cc(){
767     log check_cc "$@"
768     cat > $TMPC
769     log_file $TMPC
770     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
771 }
772
773 check_cxx(){
774     log check_cxx "$@"
775     cat > $TMPCPP
776     log_file $TMPCPP
777     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
778 }
779
780 check_cpp(){
781     log check_cpp "$@"
782     cat > $TMPC
783     log_file $TMPC
784     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
785 }
786
787 as_o(){
788     eval printf '%s\\n' $AS_O
789 }
790
791 check_as(){
792     log check_as "$@"
793     cat > $TMPS
794     log_file $TMPS
795     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
796 }
797
798 check_inline_asm(){
799     log check_inline_asm "$@"
800     name="$1"
801     code="$2"
802     shift 2
803     disable $name
804     check_cc "$@" <<EOF && enable $name
805 void foo(void){ __asm__ volatile($code); }
806 EOF
807 }
808
809 check_insn(){
810     log check_insn "$@"
811     check_inline_asm ${1}_inline "\"$2\""
812     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
813 }
814
815 check_yasm(){
816     log check_yasm "$@"
817     echo "$1" > $TMPS
818     log_file $TMPS
819     shift 1
820     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
821 }
822
823 ld_o(){
824     eval printf '%s\\n' $LD_O
825 }
826
827 check_ld(){
828     log check_ld "$@"
829     type=$1
830     shift 1
831     flags=$(filter_out '-l*|*.so' $@)
832     libs=$(filter '-l*|*.so' $@)
833     check_$type $($cflags_filter $flags) || return
834     flags=$($ldflags_filter $flags)
835     libs=$($ldflags_filter $libs)
836     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
837 }
838
839 check_code(){
840     log check_code "$@"
841     check=$1
842     headers=$2
843     code=$3
844     shift 3
845     {
846         for hdr in $headers; do
847             echo "#include <$hdr>"
848         done
849         echo "int main(void) { $code; return 0; }"
850     } | check_$check "$@"
851 }
852
853 check_cppflags(){
854     log check_cppflags "$@"
855     check_cc "$@" <<EOF && append CPPFLAGS "$@"
856 int x;
857 EOF
858 }
859
860 test_cflags(){
861     log test_cflags "$@"
862     set -- $($cflags_filter "$@")
863     check_cc "$@" <<EOF
864 int x;
865 EOF
866 }
867
868 check_cflags(){
869     log check_cflags "$@"
870     test_cflags "$@" && add_cflags "$@"
871 }
872
873 check_cxxflags(){
874     log check_cxxflags "$@"
875     set -- $($cflags_filter "$@")
876     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
877 int x;
878 EOF
879 }
880
881 test_ldflags(){
882     log test_ldflags "$@"
883     check_ld "cc" "$@" <<EOF
884 int main(void){ return 0; }
885 EOF
886 }
887
888 check_ldflags(){
889     log check_ldflags "$@"
890     test_ldflags "$@" && add_ldflags "$@"
891 }
892
893 check_header(){
894     log check_header "$@"
895     header=$1
896     shift
897     disable_safe $header
898     check_cpp "$@" <<EOF && enable_safe $header
899 #include <$header>
900 int x;
901 EOF
902 }
903
904 check_func(){
905     log check_func "$@"
906     func=$1
907     shift
908     disable $func
909     check_ld "cc" "$@" <<EOF && enable $func
910 extern int $func();
911 int main(void){ $func(); }
912 EOF
913 }
914
915 check_mathfunc(){
916     log check_mathfunc "$@"
917     func=$1
918     narg=$2
919     shift 2
920     test $narg = 2 && args="f, g" || args="f"
921     disable $func
922     check_ld "cc" "$@" <<EOF && enable $func
923 #include <math.h>
924 float foo(float f, float g) { return $func($args); }
925 int main(void){ return (int) foo; }
926 EOF
927 }
928
929 check_func_headers(){
930     log check_func_headers "$@"
931     headers=$1
932     funcs=$2
933     shift 2
934     {
935         for hdr in $headers; do
936             echo "#include <$hdr>"
937         done
938         for func in $funcs; do
939             echo "long check_$func(void) { return (long) $func; }"
940         done
941         echo "int main(void) { return 0; }"
942     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
943 }
944
945 check_class_headers_cpp(){
946     log check_class_headers_cpp "$@"
947     headers=$1
948     classes=$2
949     shift 2
950     {
951         for hdr in $headers; do
952             echo "#include <$hdr>"
953         done
954         echo "int main(void) { "
955         i=1
956         for class in $classes; do
957             echo "$class obj$i;"
958             i=$(expr $i + 1)
959         done
960         echo "return 0; }"
961     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
962 }
963
964 check_cpp_condition(){
965     log check_cpp_condition "$@"
966     header=$1
967     condition=$2
968     shift 2
969     check_cpp "$@" <<EOF
970 #include <$header>
971 #if !($condition)
972 #error "unsatisfied condition: $condition"
973 #endif
974 EOF
975 }
976
977 check_lib(){
978     log check_lib "$@"
979     header="$1"
980     func="$2"
981     shift 2
982     check_header $header && check_func $func "$@" && add_extralibs "$@"
983 }
984
985 check_lib2(){
986     log check_lib2 "$@"
987     headers="$1"
988     funcs="$2"
989     shift 2
990     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
991 }
992
993 check_lib_cpp(){
994     log check_lib_cpp "$@"
995     headers="$1"
996     classes="$2"
997     shift 2
998     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
999 }
1000
1001 check_pkg_config(){
1002     log check_pkg_config "$@"
1003     pkg="$1"
1004     headers="$2"
1005     funcs="$3"
1006     shift 3
1007     check_cmd $pkg_config --exists --print-errors $pkg || return
1008     pkg_cflags=$($pkg_config --cflags $pkg)
1009     pkg_libs=$($pkg_config --libs $pkg)
1010     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1011         set_safe ${pkg}_cflags $pkg_cflags   &&
1012         set_safe ${pkg}_libs   $pkg_libs
1013 }
1014
1015 check_exec(){
1016     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1017 }
1018
1019 check_exec_crash(){
1020     code=$(cat)
1021
1022     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1023     # are safe but may not be available everywhere.  Thus we use
1024     # raise(SIGTERM) instead.  The check is run in a subshell so we
1025     # can redirect the "Terminated" message from the shell.  SIGBUS
1026     # is not defined by standard C so it is used conditionally.
1027
1028     (check_exec "$@") >> $logfile 2>&1 <<EOF
1029 #include <signal.h>
1030 static void sighandler(int sig){
1031     raise(SIGTERM);
1032 }
1033 int foo(void){
1034     $code
1035 }
1036 int (*func_ptr)(void) = foo;
1037 int main(void){
1038     signal(SIGILL, sighandler);
1039     signal(SIGFPE, sighandler);
1040     signal(SIGSEGV, sighandler);
1041 #ifdef SIGBUS
1042     signal(SIGBUS, sighandler);
1043 #endif
1044     return func_ptr();
1045 }
1046 EOF
1047 }
1048
1049 check_type(){
1050     log check_type "$@"
1051     headers=$1
1052     type=$2
1053     shift 2
1054     disable_safe "$type"
1055     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1056 }
1057
1058 check_struct(){
1059     log check_struct "$@"
1060     headers=$1
1061     struct=$2
1062     member=$3
1063     shift 3
1064     disable_safe "${struct}_${member}"
1065     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1066         enable_safe "${struct}_${member}"
1067 }
1068
1069 check_builtin(){
1070     log check_builtin "$@"
1071     name=$1
1072     headers=$2
1073     builtin=$3
1074     shift 3
1075     disable "$name"
1076     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1077 }
1078
1079 require(){
1080     name="$1"
1081     header="$2"
1082     func="$3"
1083     shift 3
1084     check_lib $header $func "$@" || die "ERROR: $name not found"
1085 }
1086
1087 require2(){
1088     name="$1"
1089     headers="$2"
1090     func="$3"
1091     shift 3
1092     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1093 }
1094
1095 require_cpp(){
1096     name="$1"
1097     headers="$2"
1098     classes="$3"
1099     shift 3
1100     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1101 }
1102
1103 require_pkg_config(){
1104     pkg="$1"
1105     check_pkg_config "$@" || die "ERROR: $pkg not found"
1106     add_cflags    $(get_safe ${pkg}_cflags)
1107     add_extralibs $(get_safe ${pkg}_libs)
1108 }
1109
1110 hostcc_o(){
1111     eval printf '%s\\n' $HOSTCC_O
1112 }
1113
1114 check_host_cc(){
1115     log check_host_cc "$@"
1116     cat > $TMPC
1117     log_file $TMPC
1118     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1119 }
1120
1121 check_host_cppflags(){
1122     log check_host_cppflags "$@"
1123     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1124 int x;
1125 EOF
1126 }
1127
1128 check_host_cflags(){
1129     log check_host_cflags "$@"
1130     set -- $($host_cflags_filter "$@")
1131     check_host_cc "$@" <<EOF && append host_cflags "$@"
1132 int x;
1133 EOF
1134 }
1135
1136 apply(){
1137     file=$1
1138     shift
1139     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1140 }
1141
1142 cp_if_changed(){
1143     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1144     mkdir -p "$(dirname $2)"
1145     $cp_f "$1" "$2"
1146 }
1147
1148 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1149 # system-dependent things.
1150
1151 COMPONENT_LIST="
1152     bsfs
1153     decoders
1154     demuxers
1155     encoders
1156     filters
1157     hwaccels
1158     indevs
1159     muxers
1160     outdevs
1161     parsers
1162     protocols
1163 "
1164
1165 EXTERNAL_LIBRARY_LIST="
1166     avisynth
1167     bzlib
1168     crystalhd
1169     fontconfig
1170     frei0r
1171     gnutls
1172     iconv
1173     ladspa
1174     libaacplus
1175     libass
1176     libbluray
1177     libcaca
1178     libcdio
1179     libcelt
1180     libdc1394
1181     libfaac
1182     libfdk_aac
1183     libflite
1184     libfreetype
1185     libgme
1186     libgsm
1187     libiec61883
1188     libilbc
1189     libmodplug
1190     libmp3lame
1191     libnut
1192     libopencore_amrnb
1193     libopencore_amrwb
1194     libopencv
1195     libopenjpeg
1196     libopus
1197     libpulse
1198     libquvi
1199     librtmp
1200     libschroedinger
1201     libshine
1202     libsoxr
1203     libspeex
1204     libssh
1205     libstagefright_h264
1206     libtheora
1207     libtwolame
1208     libutvideo
1209     libv4l2
1210     libvidstab
1211     libvo_aacenc
1212     libvo_amrwbenc
1213     libvorbis
1214     libvpx
1215     libwavpack
1216     libx264
1217     libxavs
1218     libxvid
1219     libzmq
1220     libzvbi
1221     openal
1222     opencl
1223     openssl
1224     x11grab
1225     zlib
1226 "
1227
1228 DOCUMENT_LIST="
1229     doc
1230     htmlpages
1231     manpages
1232     podpages
1233     txtpages
1234 "
1235
1236 HWACCEL_LIST="
1237     dxva2
1238     vaapi
1239     vda
1240     vdpau
1241 "
1242
1243 LIBRARY_LIST="
1244     avcodec
1245     avdevice
1246     avfilter
1247     avformat
1248     avresample
1249     avutil
1250     postproc
1251     swresample
1252     swscale
1253 "
1254
1255 PROGRAM_LIST="
1256     ffplay
1257     ffprobe
1258     ffserver
1259     ffmpeg
1260 "
1261
1262 CONFIG_LIST="
1263     $COMPONENT_LIST
1264     $DOCUMENT_LIST
1265     $EXTERNAL_LIBRARY_LIST
1266     $HWACCEL_LIST
1267     $LIBRARY_LIST
1268     $PROGRAM_LIST
1269     dct
1270     dwt
1271     error_resilience
1272     fast_unaligned
1273     fft
1274     ftrapv
1275     gpl
1276     gray
1277     hardcoded_tables
1278     incompatible_libav_abi
1279     incompatible_fork_abi
1280     lsp
1281     lzo
1282     mdct
1283     memalign_hack
1284     memory_poisoning
1285     network
1286     nonfree
1287     pic
1288     rdft
1289     runtime_cpudetect
1290     safe_bitstream_reader
1291     shared
1292     small
1293     sram
1294     static
1295     swscale_alpha
1296     thumb
1297     version3
1298     xmm_clobber_test
1299 "
1300
1301 THREADS_LIST='
1302     pthreads
1303     w32threads
1304     os2threads
1305 '
1306
1307 ATOMICS_LIST='
1308     atomics_gcc
1309     atomics_suncc
1310     atomics_win32
1311 '
1312
1313 ARCH_LIST='
1314     aarch64
1315     alpha
1316     arm
1317     avr32
1318     avr32_ap
1319     avr32_uc
1320     bfin
1321     ia64
1322     m68k
1323     mips
1324     mips64
1325     parisc
1326     ppc
1327     ppc64
1328     s390
1329     sh4
1330     sparc
1331     sparc64
1332     tilegx
1333     tilepro
1334     tomi
1335     x86
1336     x86_32
1337     x86_64
1338 '
1339
1340 ARCH_EXT_LIST_ARM='
1341     armv5te
1342     armv6
1343     armv6t2
1344     neon
1345     vfp
1346     vfpv3
1347 '
1348
1349 ARCH_EXT_LIST_X86='
1350     amd3dnow
1351     amd3dnowext
1352     avx
1353     avx2
1354     fma4
1355     i686
1356     mmx
1357     mmxext
1358     sse
1359     sse2
1360     sse3
1361     sse4
1362     sse42
1363     ssse3
1364 '
1365
1366 ARCH_EXT_LIST="
1367     $ARCH_EXT_LIST_ARM
1368     $ARCH_EXT_LIST_X86
1369     altivec
1370     ppc4xx
1371     vis
1372     mipsfpu
1373     mips32r2
1374     mipsdspr1
1375     mipsdspr2
1376 "
1377
1378 HAVE_LIST_CMDLINE='
1379     inline_asm
1380     symver
1381     yasm
1382 '
1383
1384 HAVE_LIST_PUB='
1385     bigendian
1386     fast_unaligned
1387     incompatible_libav_abi
1388     incompatible_fork_abi
1389 '
1390
1391 MATH_FUNCS="
1392     atanf
1393     atan2f
1394     cbrt
1395     cbrtf
1396     cosf
1397     exp2
1398     exp2f
1399     expf
1400     isinf
1401     isnan
1402     ldexpf
1403     llrint
1404     llrintf
1405     log2
1406     log2f
1407     log10f
1408     lrint
1409     lrintf
1410     powf
1411     rint
1412     round
1413     roundf
1414     sinf
1415     trunc
1416     truncf
1417 "
1418
1419 HAVE_LIST="
1420     $ARCH_EXT_LIST
1421     $(add_suffix _external $ARCH_EXT_LIST)
1422     $(add_suffix _inline   $ARCH_EXT_LIST)
1423     $HAVE_LIST_CMDLINE
1424     $HAVE_LIST_PUB
1425     $THREADS_LIST
1426     $ATOMICS_LIST
1427     $MATH_FUNCS
1428     access
1429     aligned_malloc
1430     aligned_stack
1431     alsa_asoundlib_h
1432     altivec_h
1433     arpa_inet_h
1434     asm_mod_q
1435     asm_mod_y
1436     asm_types_h
1437     atomic_cas_ptr
1438     atomics_native
1439     attribute_may_alias
1440     attribute_packed
1441     cdio_paranoia_h
1442     cdio_paranoia_paranoia_h
1443     CL_cl_h
1444     clock_gettime
1445     closesocket
1446     CommandLineToArgvW
1447     cpunop
1448     CryptGenRandom
1449     dcbzl
1450     dev_bktr_ioctl_bt848_h
1451     dev_bktr_ioctl_meteor_h
1452     dev_ic_bt8xx_h
1453     dev_video_bktr_ioctl_bt848_h
1454     dev_video_meteor_ioctl_meteor_h
1455     direct_h
1456     dlfcn_h
1457     dlopen
1458     dos_paths
1459     dxva_h
1460     ebp_available
1461     ebx_available
1462     fast_64bit
1463     fast_clz
1464     fast_cmov
1465     fcntl
1466     fork
1467     getaddrinfo
1468     gethrtime
1469     getopt
1470     GetProcessAffinityMask
1471     GetProcessMemoryInfo
1472     GetProcessTimes
1473     GetSystemTimeAsFileTime
1474     getrusage
1475     getservbyport
1476     gettimeofday
1477     glob
1478     gnu_as
1479     gsm_h
1480     ibm_asm
1481     inet_aton
1482     io_h
1483     inline_asm_labels
1484     isatty
1485     jack_port_get_latency_range
1486     kbhit
1487     ldbrx
1488     libdc1394_1
1489     libdc1394_2
1490     local_aligned_16
1491     local_aligned_8
1492     localtime_r
1493     loongson
1494     lzo1x_999_compress
1495     machine_ioctl_bt848_h
1496     machine_ioctl_meteor_h
1497     machine_rw_barrier
1498     makeinfo
1499     malloc_h
1500     MapViewOfFile
1501     memalign
1502     MemoryBarrier
1503     mkstemp
1504     mm_empty
1505     mmap
1506     mprotect
1507     msvcrt
1508     nanosleep
1509     openjpeg_1_5_openjpeg_h
1510     PeekNamedPipe
1511     perl
1512     pod2man
1513     poll_h
1514     posix_memalign
1515     pragma_deprecated
1516     pthread_cancel
1517     rdtsc
1518     rsync_contimeout
1519     sarestart
1520     sched_getaffinity
1521     sdl
1522     SetConsoleTextAttribute
1523     setmode
1524     setrlimit
1525     Sleep
1526     sndio_h
1527     socklen_t
1528     soundcard_h
1529     strerror_r
1530     struct_addrinfo
1531     struct_group_source_req
1532     struct_ip_mreq_source
1533     struct_ipv6_mreq
1534     struct_pollfd
1535     struct_rusage_ru_maxrss
1536     struct_sctp_event_subscribe
1537     struct_sockaddr_in6
1538     struct_sockaddr_sa_len
1539     struct_sockaddr_storage
1540     struct_stat_st_mtim_tv_nsec
1541     struct_v4l2_frmivalenum_discrete
1542     symver_asm_label
1543     symver_gnu_asm
1544     sync_val_compare_and_swap
1545     sysconf
1546     sysctl
1547     sys_mman_h
1548     sys_param_h
1549     sys_resource_h
1550     sys_select_h
1551     sys_soundcard_h
1552     sys_time_h
1553     sys_un_h
1554     sys_videoio_h
1555     termios_h
1556     texi2html
1557     threads
1558     unistd_h
1559     usleep
1560     vfp_args
1561     VirtualAlloc
1562     windows_h
1563     winsock2_h
1564     xform_asm
1565     xmm_clobbers
1566 "
1567
1568 # options emitted with CONFIG_ prefix but not available on the command line
1569 CONFIG_EXTRA="
1570     aandcttables
1571     ac3dsp
1572     audio_frame_queue
1573     dsputil
1574     exif
1575     frame_thread_encoder
1576     gcrypt
1577     golomb
1578     gplv3
1579     h263dsp
1580     h264chroma
1581     h264dsp
1582     h264pred
1583     h264qpel
1584     hpeldsp
1585     huffman
1586     lgplv3
1587     lpc
1588     mpegaudio
1589     mpegaudiodsp
1590     mpegvideo
1591     mpegvideoenc
1592     nettle
1593     rangecoder
1594     riffdec
1595     riffenc
1596     rtpdec
1597     rtpenc_chain
1598     sinewin
1599     videodsp
1600     vp3dsp
1601 "
1602
1603 CMDLINE_SELECT="
1604     $ARCH_EXT_LIST
1605     $CONFIG_LIST
1606     $HAVE_LIST_CMDLINE
1607     $THREADS_LIST
1608     asm
1609     cross_compile
1610     debug
1611     extra_warnings
1612     logging
1613     lto
1614     optimizations
1615     stripping
1616 "
1617
1618 PATHS_LIST='
1619     bindir
1620     datadir
1621     docdir
1622     incdir
1623     libdir
1624     mandir
1625     prefix
1626     shlibdir
1627 '
1628
1629 CMDLINE_SET="
1630     $PATHS_LIST
1631     ar
1632     arch
1633     as
1634     assert_level
1635     build_suffix
1636     cc
1637     cpu
1638     cross_prefix
1639     cxx
1640     dep_cc
1641     extra_version
1642     host_cc
1643     host_cflags
1644     host_ld
1645     host_ldflags
1646     host_libs
1647     host_os
1648     install
1649     ld
1650     logfile
1651     malloc_prefix
1652     nm
1653     optflags
1654     pkg_config
1655     progs_suffix
1656     random_seed
1657     samples
1658     strip
1659     sysinclude
1660     sysroot
1661     target_exec
1662     target_os
1663     target_path
1664     target_samples
1665     tempprefix
1666     toolchain
1667     valgrind
1668     yasmexe
1669 "
1670
1671 CMDLINE_APPEND="
1672     extra_cflags
1673     extra_cxxflags
1674     host_cppflags
1675 "
1676
1677 # code dependency declarations
1678
1679 # architecture extensions
1680
1681 armv5te_deps="arm"
1682 armv6_deps="arm"
1683 armv6t2_deps="arm"
1684 neon_deps="arm"
1685 vfp_deps="arm"
1686 vfpv3_deps="vfp"
1687
1688 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1689
1690 mipsfpu_deps="mips"
1691 mips32r2_deps="mips"
1692 mipsdspr1_deps="mips"
1693 mipsdspr2_deps="mips"
1694
1695 altivec_deps="ppc"
1696 ppc4xx_deps="ppc"
1697
1698 vis_deps="sparc"
1699
1700 cpunop_deps="i686"
1701 x86_64_select="i686"
1702 x86_64_suggest="fast_cmov"
1703
1704 amd3dnow_deps="mmx"
1705 amd3dnowext_deps="amd3dnow"
1706 mmx_deps="x86"
1707 mmxext_deps="mmx"
1708 sse_deps="mmxext"
1709 sse2_deps="sse"
1710 sse3_deps="sse2"
1711 ssse3_deps="sse3"
1712 sse4_deps="ssse3"
1713 sse42_deps="sse4"
1714 avx_deps="sse42"
1715 fma4_deps="avx"
1716 avx2_deps="avx"
1717
1718 mmx_external_deps="yasm"
1719 mmx_inline_deps="inline_asm"
1720 mmx_suggest="mmx_external mmx_inline"
1721
1722 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1723     eval dep=\$${ext}_deps
1724     eval ${ext}_external_deps='"${dep}_external"'
1725     eval ${ext}_inline_deps='"${dep}_inline"'
1726     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1727 done
1728
1729 aligned_stack_if_any="ppc x86"
1730 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1731 fast_clz_if_any="alpha avr32 mips ppc x86"
1732 fast_unaligned_if_any="ppc x86"
1733
1734 inline_asm_deps="!tms470"
1735 need_memalign="altivec neon sse"
1736
1737 symver_if_any="symver_asm_label symver_gnu_asm"
1738
1739 log2_deps="!msvcrt"
1740
1741 # subsystems
1742 dct_select="rdft"
1743 error_resilience_select="dsputil"
1744 frame_thread_encoder_deps="encoders threads"
1745 lpc_select="dsputil"
1746 mdct_select="fft"
1747 rdft_select="fft"
1748 mpegaudio_select="mpegaudiodsp"
1749 mpegaudiodsp_select="dct"
1750 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1751 mpegvideoenc_select="mpegvideo"
1752
1753 # decoders / encoders
1754 aac_decoder_select="mdct sinewin"
1755 aac_encoder_select="audio_frame_queue mdct sinewin"
1756 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1757 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1758 ac3_encoder_select="mdct ac3dsp dsputil"
1759 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1760 aic_decoder_select="dsputil golomb"
1761 alac_encoder_select="lpc"
1762 als_decoder_select="dsputil"
1763 amrnb_decoder_select="lsp"
1764 amrwb_decoder_select="lsp"
1765 amv_decoder_select="dsputil hpeldsp exif"
1766 amv_encoder_select="aandcttables"
1767 ape_decoder_select="dsputil"
1768 asv1_decoder_select="dsputil"
1769 asv1_encoder_select="dsputil"
1770 asv2_decoder_select="dsputil"
1771 asv2_encoder_select="dsputil"
1772 atrac1_decoder_select="mdct sinewin"
1773 atrac3_decoder_select="mdct"
1774 avrn_decoder_select="exif"
1775 bink_decoder_select="dsputil hpeldsp"
1776 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1777 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1778 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1779 cllc_decoder_select="dsputil"
1780 comfortnoise_encoder_select="lpc"
1781 cook_decoder_select="dsputil mdct sinewin"
1782 cscd_decoder_select="lzo"
1783 cscd_decoder_suggest="zlib"
1784 dca_decoder_select="mdct"
1785 dirac_decoder_select="dsputil dwt golomb videodsp"
1786 dnxhd_decoder_select="dsputil"
1787 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1788 dvvideo_decoder_select="dsputil"
1789 dvvideo_encoder_select="dsputil"
1790 dxa_decoder_select="zlib"
1791 eac3_decoder_select="ac3_decoder"
1792 eac3_encoder_select="ac3_encoder"
1793 eamad_decoder_select="aandcttables dsputil mpegvideo"
1794 eatgq_decoder_select="aandcttables"
1795 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1796 exr_decoder_select="zlib"
1797 ffv1_decoder_select="dsputil golomb rangecoder"
1798 ffv1_encoder_select="dsputil rangecoder"
1799 ffvhuff_decoder_select="dsputil"
1800 ffvhuff_encoder_select="dsputil huffman"
1801 flac_decoder_select="golomb"
1802 flac_encoder_select="dsputil golomb lpc"
1803 flashsv_decoder_select="zlib"
1804 flashsv_encoder_select="zlib"
1805 flashsv2_encoder_select="zlib"
1806 flashsv2_decoder_select="zlib"
1807 flv_decoder_select="h263_decoder"
1808 flv_encoder_select="h263_encoder"
1809 fourxm_decoder_select="dsputil"
1810 fraps_decoder_select="dsputil huffman"
1811 g2m_decoder_select="dsputil zlib"
1812 g729_decoder_select="dsputil"
1813 h261_decoder_select="error_resilience mpegvideo"
1814 h261_encoder_select="aandcttables mpegvideoenc"
1815 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1816 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1817 h263i_decoder_select="h263_decoder"
1818 h263p_encoder_select="h263_encoder"
1819 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1820 h264_decoder_suggest="error_resilience"
1821 hevc_decoder_select="dsputil golomb videodsp"
1822 huffyuv_decoder_select="dsputil"
1823 huffyuv_encoder_select="dsputil huffman"
1824 iac_decoder_select="dsputil fft mdct sinewin"
1825 imc_decoder_select="dsputil fft mdct sinewin"
1826 indeo3_decoder_select="hpeldsp"
1827 interplay_video_decoder_select="hpeldsp"
1828 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1829 jpegls_encoder_select="golomb"
1830 jv_decoder_select="dsputil"
1831 lagarith_decoder_select="dsputil"
1832 ljpeg_encoder_select="aandcttables mpegvideoenc"
1833 loco_decoder_select="golomb"
1834 mdec_decoder_select="dsputil error_resilience mpegvideo"
1835 metasound_decoder_select="lsp mdct sinewin"
1836 mimic_decoder_select="dsputil hpeldsp"
1837 mjpeg_decoder_select="dsputil hpeldsp exif"
1838 mjpegb_decoder_select="dsputil hpeldsp exif"
1839 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1840 mlp_decoder_select="dsputil mlp_parser"
1841 motionpixels_decoder_select="dsputil"
1842 mp1_decoder_select="mpegaudio"
1843 mp1float_decoder_select="mpegaudio"
1844 mp2_decoder_select="mpegaudio"
1845 mp2float_decoder_select="mpegaudio"
1846 mp3_decoder_select="mpegaudio"
1847 mp3adu_decoder_select="mpegaudio"
1848 mp3adufloat_decoder_select="mpegaudio"
1849 mp3float_decoder_select="mpegaudio"
1850 mp3on4_decoder_select="mpegaudio"
1851 mp3on4float_decoder_select="mpegaudio"
1852 mpc7_decoder_select="dsputil mpegaudiodsp"
1853 mpc8_decoder_select="dsputil mpegaudiodsp"
1854 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1855 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1856 mpeg1video_decoder_select="error_resilience mpegvideo"
1857 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1858 mpeg2video_decoder_select="error_resilience mpegvideo"
1859 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1860 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1861 mpeg4_encoder_select="h263_encoder"
1862 msmpeg4v1_decoder_select="h263_decoder"
1863 msmpeg4v2_decoder_select="h263_decoder"
1864 msmpeg4v2_encoder_select="h263_encoder"
1865 msmpeg4v3_decoder_select="h263_decoder"
1866 msmpeg4v3_encoder_select="h263_encoder"
1867 mss2_decoder_select="error_resilience vc1_decoder"
1868 mxpeg_decoder_select="dsputil hpeldsp exif"
1869 nellymoser_decoder_select="mdct sinewin"
1870 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1871 nuv_decoder_select="dsputil lzo"
1872 png_decoder_select="zlib"
1873 png_encoder_select="dsputil zlib"
1874 prores_decoder_select="dsputil"
1875 prores_encoder_select="dsputil"
1876 qcelp_decoder_select="lsp"
1877 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1878 ra_144_encoder_select="audio_frame_queue lpc"
1879 ralf_decoder_select="golomb"
1880 rtjpeg_decoder_select="dsputil"
1881 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1882 rv10_encoder_select="h263_encoder"
1883 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1884 rv20_encoder_select="h263_encoder"
1885 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1886 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1887 shorten_decoder_select="golomb"
1888 sipr_decoder_select="lsp"
1889 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1890 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1891 sonic_decoder_select="golomb"
1892 sonic_encoder_select="golomb"
1893 sonic_ls_encoder_select="golomb"
1894 sp5x_decoder_select="dsputil hpeldsp exif"
1895 svq1_decoder_select="hpeldsp"
1896 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1897 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1898 svq3_decoder_suggest="error_resilience zlib"
1899 tak_decoder_select="dsputil"
1900 theora_decoder_select="vp3_decoder"
1901 tiff_decoder_suggest="zlib"
1902 tiff_encoder_suggest="zlib"
1903 thp_decoder_select="dsputil hpeldsp exif"
1904 truehd_decoder_select="mlp_parser"
1905 truemotion2_decoder_select="dsputil"
1906 truespeech_decoder_select="dsputil"
1907 tscc_decoder_select="zlib"
1908 twinvq_decoder_select="mdct lsp sinewin"
1909 utvideo_decoder_select="dsputil"
1910 utvideo_encoder_select="dsputil huffman"
1911 vble_decoder_select="dsputil"
1912 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1913 vc1image_decoder_select="vc1_decoder"
1914 vorbis_decoder_select="mdct"
1915 vorbis_encoder_select="mdct"
1916 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1917 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1918 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1919 vp6a_decoder_select="vp6_decoder"
1920 vp6f_decoder_select="vp6_decoder"
1921 vp8_decoder_select="h264pred videodsp"
1922 vp9_decoder_select="videodsp"
1923 webp_decoder_select="vp8_decoder"
1924 wmapro_decoder_select="mdct sinewin"
1925 wmav1_decoder_select="mdct sinewin"
1926 wmav1_encoder_select="mdct sinewin"
1927 wmav2_decoder_select="mdct sinewin"
1928 wmav2_encoder_select="mdct sinewin"
1929 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1930 wmv1_decoder_select="h263_decoder"
1931 wmv1_encoder_select="h263_encoder"
1932 wmv2_decoder_select="h263_decoder videodsp"
1933 wmv2_encoder_select="h263_encoder"
1934 wmv3_decoder_select="vc1_decoder"
1935 wmv3image_decoder_select="wmv3_decoder"
1936 zerocodec_decoder_select="zlib"
1937 zlib_decoder_select="zlib"
1938 zlib_encoder_select="zlib"
1939 zmbv_decoder_select="zlib"
1940 zmbv_encoder_select="zlib"
1941
1942 # hardware accelerators
1943 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1944 dxva2_deps="dxva2api_h"
1945 vaapi_deps="va_va_h"
1946 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1947 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1948 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1949
1950 h263_vaapi_hwaccel_deps="vaapi"
1951 h263_vaapi_hwaccel_select="h263_decoder"
1952 h263_vdpau_hwaccel_deps="vdpau"
1953 h263_vdpau_hwaccel_select="h263_decoder"
1954 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1955 h264_dxva2_hwaccel_deps="dxva2"
1956 h264_dxva2_hwaccel_select="h264_decoder"
1957 h264_vaapi_hwaccel_deps="vaapi"
1958 h264_vaapi_hwaccel_select="h264_decoder"
1959 h264_vda_decoder_deps="vda"
1960 h264_vda_decoder_select="h264_decoder"
1961 h264_vda_hwaccel_deps="vda"
1962 h264_vda_hwaccel_select="h264_decoder"
1963 h264_vdpau_decoder_deps="vdpau"
1964 h264_vdpau_decoder_select="h264_decoder"
1965 h264_vdpau_hwaccel_deps="vdpau"
1966 h264_vdpau_hwaccel_select="h264_decoder"
1967 mpeg_vdpau_decoder_deps="vdpau"
1968 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1969 mpeg1_vdpau_decoder_deps="vdpau"
1970 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1971 mpeg1_vdpau_hwaccel_deps="vdpau"
1972 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1973 mpeg2_crystalhd_decoder_select="crystalhd"
1974 mpeg2_dxva2_hwaccel_deps="dxva2"
1975 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1976 mpeg2_vaapi_hwaccel_deps="vaapi"
1977 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1978 mpeg2_vdpau_hwaccel_deps="vdpau"
1979 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1980 mpeg4_crystalhd_decoder_select="crystalhd"
1981 mpeg4_vaapi_hwaccel_deps="vaapi"
1982 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1983 mpeg4_vdpau_decoder_deps="vdpau"
1984 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1985 mpeg4_vdpau_hwaccel_deps="vdpau"
1986 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1987 msmpeg4_crystalhd_decoder_select="crystalhd"
1988 vc1_crystalhd_decoder_select="crystalhd"
1989 vc1_dxva2_hwaccel_deps="dxva2"
1990 vc1_dxva2_hwaccel_select="vc1_decoder"
1991 vc1_vaapi_hwaccel_deps="vaapi"
1992 vc1_vaapi_hwaccel_select="vc1_decoder"
1993 vc1_vdpau_decoder_deps="vdpau"
1994 vc1_vdpau_decoder_select="vc1_decoder"
1995 vc1_vdpau_hwaccel_deps="vdpau"
1996 vc1_vdpau_hwaccel_select="vc1_decoder"
1997 wmv3_crystalhd_decoder_select="crystalhd"
1998 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1999 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2000 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2001 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2002
2003 # parsers
2004 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2005 hevc_parser_select="hevc_decoder"
2006 mpeg4video_parser_select="error_resilience mpegvideo"
2007 mpegvideo_parser_select="error_resilience mpegvideo"
2008 vc1_parser_select="mpegvideo"
2009
2010 # external libraries
2011 libaacplus_encoder_deps="libaacplus"
2012 libcelt_decoder_deps="libcelt"
2013 libfaac_encoder_deps="libfaac"
2014 libfaac_encoder_select="audio_frame_queue"
2015 libfdk_aac_decoder_deps="libfdk_aac"
2016 libfdk_aac_encoder_deps="libfdk_aac"
2017 libfdk_aac_encoder_select="audio_frame_queue"
2018 libgme_demuxer_deps="libgme"
2019 libgsm_decoder_deps="libgsm"
2020 libgsm_encoder_deps="libgsm"
2021 libgsm_ms_decoder_deps="libgsm"
2022 libgsm_ms_encoder_deps="libgsm"
2023 libilbc_decoder_deps="libilbc"
2024 libilbc_encoder_deps="libilbc"
2025 libmodplug_demuxer_deps="libmodplug"
2026 libmp3lame_encoder_deps="libmp3lame"
2027 libmp3lame_encoder_select="audio_frame_queue"
2028 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2029 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2030 libopencore_amrnb_encoder_select="audio_frame_queue"
2031 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2032 libopenjpeg_decoder_deps="libopenjpeg"
2033 libopenjpeg_encoder_deps="libopenjpeg"
2034 libopus_decoder_deps="libopus"
2035 libopus_encoder_deps="libopus"
2036 libopus_encoder_select="audio_frame_queue"
2037 libquvi_demuxer_deps="libquvi"
2038 libschroedinger_decoder_deps="libschroedinger"
2039 libschroedinger_encoder_deps="libschroedinger"
2040 libshine_encoder_deps="libshine"
2041 libshine_encoder_select="audio_frame_queue"
2042 libspeex_decoder_deps="libspeex"
2043 libspeex_encoder_deps="libspeex"
2044 libspeex_encoder_select="audio_frame_queue"
2045 libstagefright_h264_decoder_deps="libstagefright_h264"
2046 libtheora_encoder_deps="libtheora"
2047 libtwolame_encoder_deps="libtwolame"
2048 libvo_aacenc_encoder_deps="libvo_aacenc"
2049 libvo_aacenc_encoder_select="audio_frame_queue"
2050 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2051 libvorbis_decoder_deps="libvorbis"
2052 libvorbis_encoder_deps="libvorbis"
2053 libvorbis_encoder_select="audio_frame_queue"
2054 libvpx_vp8_decoder_deps="libvpx"
2055 libvpx_vp8_encoder_deps="libvpx"
2056 libvpx_vp9_decoder_deps="libvpx"
2057 libvpx_vp9_encoder_deps="libvpx"
2058 libwavpack_encoder_deps="libwavpack"
2059 libx264_encoder_deps="libx264"
2060 libx264rgb_encoder_deps="libx264"
2061 libxavs_encoder_deps="libxavs"
2062 libxvid_encoder_deps="libxvid"
2063 libutvideo_decoder_deps="libutvideo"
2064 libutvideo_encoder_deps="libutvideo"
2065 libzvbi_teletext_decoder_deps="libzvbi"
2066
2067 # demuxers / muxers
2068 ac3_demuxer_select="ac3_parser"
2069 asf_demuxer_select="riffdec"
2070 asf_muxer_select="riffenc"
2071 asf_stream_muxer_select="asf_muxer"
2072 avi_demuxer_select="riffdec"
2073 avi_muxer_select="riffenc"
2074 avisynth_demuxer_deps="avisynth"
2075 avisynth_demuxer_select="riffdec"
2076 caf_demuxer_select="riffdec"
2077 dirac_demuxer_select="dirac_parser"
2078 dts_demuxer_select="dca_parser"
2079 dtshd_demuxer_select="dca_parser"
2080 dxa_demuxer_select="riffdec"
2081 eac3_demuxer_select="ac3_parser"
2082 f4v_muxer_select="mov_muxer"
2083 flac_demuxer_select="flac_parser"
2084 hds_muxer_select="flv_muxer"
2085 hls_muxer_select="mpegts_muxer"
2086 ipod_muxer_select="mov_muxer"
2087 ismv_muxer_select="mov_muxer"
2088 libnut_demuxer_deps="libnut"
2089 libnut_muxer_deps="libnut"
2090 matroska_audio_muxer_select="matroska_muxer"
2091 matroska_demuxer_select="riffdec"
2092 matroska_demuxer_suggest="bzlib lzo zlib"
2093 matroska_muxer_select="riffenc"
2094 mmf_muxer_select="riffenc"
2095 mov_demuxer_select="riffdec"
2096 mov_demuxer_suggest="zlib"
2097 mov_muxer_select="riffenc rtpenc_chain"
2098 mp3_demuxer_select="mpegaudio_parser"
2099 mp4_muxer_select="mov_muxer"
2100 mpegts_muxer_select="adts_muxer latm_muxer"
2101 mpegtsraw_demuxer_select="mpegts_demuxer"
2102 mxf_d10_muxer_select="mxf_muxer"
2103 nut_muxer_select="riffenc"
2104 nuv_demuxer_select="riffdec"
2105 ogg_demuxer_select="golomb"
2106 psp_muxer_select="mov_muxer"
2107 rtp_demuxer_select="sdp_demuxer"
2108 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2109 rtsp_demuxer_select="http_protocol rtpdec"
2110 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2111 sap_demuxer_select="sdp_demuxer"
2112 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2113 sdp_demuxer_select="rtpdec"
2114 smoothstreaming_muxer_select="ismv_muxer"
2115 spdif_muxer_select="aac_parser"
2116 tak_demuxer_select="tak_parser"
2117 tg2_muxer_select="mov_muxer"
2118 tgp_muxer_select="mov_muxer"
2119 vobsub_demuxer_select="mpegps_demuxer"
2120 w64_demuxer_select="wav_demuxer"
2121 w64_muxer_select="wav_muxer"
2122 wav_demuxer_select="riffdec"
2123 wav_muxer_select="riffenc"
2124 webm_muxer_select="riffenc"
2125 wtv_demuxer_select="riffdec"
2126 xmv_demuxer_select="riffdec"
2127 xwma_demuxer_select="riffdec"
2128
2129 # indevs / outdevs
2130 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2131 alsa_outdev_deps="alsa_asoundlib_h"
2132 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2133 caca_outdev_deps="libcaca"
2134 dshow_indev_deps="IBaseFilter"
2135 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2136 dv1394_indev_deps="dv1394"
2137 dv1394_indev_select="dv_demuxer"
2138 fbdev_indev_deps="linux_fb_h"
2139 fbdev_outdev_deps="linux_fb_h"
2140 iec61883_indev_deps="libiec61883"
2141 jack_indev_deps="jack_jack_h sem_timedwait"
2142 lavfi_indev_deps="avfilter"
2143 libcdio_indev_deps="libcdio"
2144 libdc1394_indev_deps="libdc1394"
2145 libv4l2_indev_deps="libv4l2"
2146 openal_indev_deps="openal"
2147 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2148 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2149 pulse_indev_deps="libpulse"
2150 pulse_outdev_deps="libpulse"
2151 sdl_outdev_deps="sdl"
2152 sndio_indev_deps="sndio_h"
2153 sndio_outdev_deps="sndio_h"
2154 v4l_indev_deps="linux_videodev_h"
2155 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2156 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2157 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2158 vfwcap_indev_extralibs="-lavicap32"
2159 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2160 xv_outdev_extralibs="-lXv -lX11 -lXext"
2161 x11grab_indev_deps="x11grab"
2162
2163 # protocols
2164 bluray_protocol_deps="libbluray"
2165 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2166 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2167 ffrtmpcrypt_protocol_select="tcp_protocol"
2168 ffrtmphttp_protocol_deps="!librtmp_protocol"
2169 ffrtmphttp_protocol_select="http_protocol"
2170 ftp_protocol_select="tcp_protocol"
2171 gopher_protocol_select="network"
2172 httpproxy_protocol_select="tcp_protocol"
2173 http_protocol_select="tcp_protocol"
2174 https_protocol_select="tls_protocol"
2175 librtmp_protocol_deps="librtmp"
2176 librtmpe_protocol_deps="librtmp"
2177 librtmps_protocol_deps="librtmp"
2178 librtmpt_protocol_deps="librtmp"
2179 librtmpte_protocol_deps="librtmp"
2180 libssh_protocol_deps="libssh"
2181 mmsh_protocol_select="http_protocol"
2182 mmst_protocol_select="network"
2183 rtmp_protocol_deps="!librtmp_protocol"
2184 rtmp_protocol_select="tcp_protocol"
2185 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2186 rtmps_protocol_deps="!librtmp_protocol"
2187 rtmps_protocol_select="tls_protocol"
2188 rtmpt_protocol_select="ffrtmphttp_protocol"
2189 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2190 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2191 rtp_protocol_select="udp_protocol"
2192 sctp_protocol_deps="struct_sctp_event_subscribe"
2193 sctp_protocol_select="network"
2194 srtp_protocol_select="rtp_protocol"
2195 tcp_protocol_select="network"
2196 tls_protocol_deps_any="openssl gnutls"
2197 tls_protocol_select="tcp_protocol"
2198 udp_protocol_select="network"
2199 unix_protocol_deps="sys_un_h"
2200 unix_protocol_select="network"
2201
2202 # filters
2203 aconvert_filter_deps="swresample"
2204 amovie_filter_deps="avcodec avformat"
2205 aresample_filter_deps="swresample"
2206 ass_filter_deps="libass"
2207 asyncts_filter_deps="avresample"
2208 atempo_filter_deps="avcodec"
2209 atempo_filter_select="rdft"
2210 azmq_filter_deps="libzmq"
2211 blackframe_filter_deps="gpl"
2212 boxblur_filter_deps="gpl"
2213 colormatrix_filter_deps="gpl"
2214 cropdetect_filter_deps="gpl"
2215 dctdnoiz_filter_deps="avcodec"
2216 dctdnoiz_filter_select="fft"
2217 delogo_filter_deps="gpl"
2218 deshake_filter_deps="avcodec"
2219 deshake_filter_select="dsputil"
2220 drawtext_filter_deps="libfreetype"
2221 ebur128_filter_deps="gpl"
2222 flite_filter_deps="libflite"
2223 frei0r_filter_deps="frei0r dlopen"
2224 frei0r_filter_extralibs='$ldl'
2225 frei0r_src_filter_deps="frei0r dlopen"
2226 frei0r_src_filter_extralibs='$ldl'
2227 geq_filter_deps="gpl"
2228 histeq_filter_deps="gpl"
2229 hqdn3d_filter_deps="gpl"
2230 interlace_filter_deps="gpl"
2231 kerndeint_filter_deps="gpl"
2232 ladspa_filter_deps="ladspa dlopen"
2233 mcdeint_filter_deps="avcodec gpl"
2234 movie_filter_deps="avcodec avformat"
2235 mp_filter_deps="gpl avcodec swscale inline_asm"
2236 mpdecimate_filter_deps="gpl avcodec"
2237 mptestsrc_filter_deps="gpl"
2238 negate_filter_deps="lut_filter"
2239 perspective_filter_deps="gpl"
2240 resample_filter_deps="avresample"
2241 ocv_filter_deps="libopencv"
2242 owdenoise_filter_deps="gpl"
2243 pan_filter_deps="swresample"
2244 phase_filter_deps="gpl"
2245 pp_filter_deps="gpl postproc"
2246 pullup_filter_deps="gpl"
2247 removelogo_filter_deps="avcodec avformat swscale"
2248 sab_filter_deps="gpl swscale"
2249 scale_filter_deps="swscale"
2250 smartblur_filter_deps="gpl swscale"
2251 showspectrum_filter_deps="avcodec"
2252 showspectrum_filter_select="rdft"
2253 spp_filter_deps="gpl avcodec"
2254 spp_filter_select="fft"
2255 stereo3d_filter_deps="gpl"
2256 subtitles_filter_deps="avformat avcodec libass"
2257 super2xsai_filter_deps="gpl"
2258 tinterlace_filter_deps="gpl"
2259 vidstabdetect_filter_deps="libvidstab"
2260 vidstabtransform_filter_deps="libvidstab"
2261 yadif_filter_deps="gpl"
2262 pixfmts_super2xsai_test_deps="super2xsai_filter"
2263 tinterlace_merge_test_deps="tinterlace_filter"
2264 tinterlace_pad_test_deps="tinterlace_filter"
2265 zmq_filter_deps="libzmq"
2266
2267 # libraries
2268 avcodec_deps="avutil"
2269 avdevice_deps="avutil avcodec avformat"
2270 avfilter_deps="avutil"
2271 avformat_deps="avutil avcodec"
2272 avresample_deps="avutil"
2273 postproc_deps="avutil gpl"
2274 swscale_deps="avutil"
2275
2276 # programs
2277 ffmpeg_deps="avcodec avfilter avformat swresample"
2278 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2279                null_filter
2280                setpts_filter trim_filter"
2281 ffplay_deps="avcodec avformat swscale swresample sdl"
2282 ffplay_select="rdft crop_filter"
2283 ffprobe_deps="avcodec avformat"
2284 ffserver_deps="avformat fork sarestart"
2285 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2286 ffserver_extralibs='$ldl'
2287
2288 # documentation
2289 podpages_deps="perl"
2290 manpages_deps="perl pod2man"
2291 htmlpages_deps="texi2html"
2292 txtpages_deps="makeinfo"
2293 doc_deps_any="manpages htmlpages podpages txtpages"
2294
2295 # default parameters
2296
2297 logfile="config.log"
2298
2299 # installation paths
2300 prefix_default="/usr/local"
2301 bindir_default='${prefix}/bin'
2302 datadir_default='${prefix}/share/ffmpeg'
2303 docdir_default='${prefix}/share/doc/ffmpeg'
2304 incdir_default='${prefix}/include'
2305 libdir_default='${prefix}/lib'
2306 mandir_default='${prefix}/share/man'
2307 shlibdir_default="$libdir_default"
2308
2309 # toolchain
2310 ar_default="ar"
2311 cc_default="gcc"
2312 cxx_default="g++"
2313 host_cc_default="gcc"
2314 cp_f="cp -f"
2315 install="install"
2316 ln_s="ln -s -f"
2317 nm_default="nm -g"
2318 objformat="elf"
2319 pkg_config_default=pkg-config
2320 ranlib="ranlib"
2321 strip_default="strip"
2322 yasmexe_default="yasm"
2323
2324 nogas=":"
2325
2326 # machine
2327 arch_default=$(uname -m)
2328 cpu="generic"
2329
2330 # OS
2331 target_os_default=$(tolower $(uname -s))
2332 host_os=$target_os_default
2333
2334 # configurable options
2335 enable $PROGRAM_LIST
2336 enable $DOCUMENT_LIST
2337 enable $(filter_out avresample $LIBRARY_LIST)
2338 enable stripping
2339
2340 enable asm
2341 enable debug
2342 enable doc
2343 enable optimizations
2344 enable runtime_cpudetect
2345 enable safe_bitstream_reader
2346 enable static
2347 enable swscale_alpha
2348
2349 # Enable hwaccels by default.
2350 enable dxva2 vaapi vdpau
2351
2352 # build settings
2353 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2354 LIBPREF="lib"
2355 LIBSUF=".a"
2356 FULLNAME='$(NAME)$(BUILDSUF)'
2357 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2358 SLIBPREF="lib"
2359 SLIBSUF=".so"
2360 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2361 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2362 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2363 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2364 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2365 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2366
2367 asflags_filter=echo
2368 cflags_filter=echo
2369 ldflags_filter=echo
2370
2371 AS_C='-c'
2372 AS_O='-o $@'
2373 CC_C='-c'
2374 CC_E='-E -o $@'
2375 CC_O='-o $@'
2376 CXX_C='-c'
2377 CXX_O='-o $@'
2378 LD_O='-o $@'
2379 LD_LIB='-l%'
2380 LD_PATH='-L'
2381 HOSTCC_C='-c'
2382 HOSTCC_O='-o $@'
2383 HOSTLD_O='-o $@'
2384
2385 host_cflags='-O3 -g'
2386 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2387 host_libs='-lm'
2388 host_cflags_filter=echo
2389 host_ldflags_filter=echo
2390
2391 target_path='$(CURDIR)'
2392
2393 # since the object filename is not given with the -MM flag, the compiler
2394 # is only able to print the basename, and we must add the path ourselves
2395 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2396 DEPFLAGS='-MM'
2397
2398 # find source path
2399 if test -f configure; then
2400     source_path=.
2401 else
2402     source_path=$(cd $(dirname "$0"); pwd)
2403     echo "$source_path" | grep -q '[[:blank:]]' &&
2404         die "Out of tree builds are impossible with whitespace in source path."
2405     test -e "$source_path/config.h" &&
2406         die "Out of tree builds are impossible with config.h in source dir."
2407 fi
2408
2409 for v in "$@"; do
2410     r=${v#*=}
2411     l=${v%"$r"}
2412     r=$(sh_quote "$r")
2413     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2414 done
2415
2416 find_things(){
2417     thing=$1
2418     pattern=$2
2419     file=$source_path/$3
2420     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2421 }
2422
2423 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2424 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2425 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2426 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2427 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2428 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2429 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2430 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2431 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2432 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2433 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2434
2435 ALL_COMPONENTS="
2436     $BSF_LIST
2437     $DECODER_LIST
2438     $DEMUXER_LIST
2439     $ENCODER_LIST
2440     $FILTER_LIST
2441     $HWACCEL_LIST
2442     $INDEV_LIST
2443     $MUXER_LIST
2444     $OUTDEV_LIST
2445     $PARSER_LIST
2446     $PROTOCOL_LIST
2447 "
2448
2449 for n in $COMPONENT_LIST; do
2450     v=$(toupper ${n%s})_LIST
2451     eval enable \$$v
2452     eval ${n}_if_any="\$$v"
2453 done
2454
2455 enable $ARCH_EXT_LIST
2456
2457 die_unknown(){
2458     echo "Unknown option \"$1\"."
2459     echo "See $0 --help for available options."
2460     exit 1
2461 }
2462
2463 print_3_columns() {
2464     cat | tr ' ' '\n' | sort | pr -r -3 -t
2465 }
2466
2467 show_list() {
2468     suffix=_$1
2469     shift
2470     echo $* | sed s/$suffix//g | print_3_columns
2471     exit 0
2472 }
2473
2474 rand_list(){
2475     IFS=', '
2476     set -- $*
2477     unset IFS
2478     for thing; do
2479         comp=${thing%:*}
2480         prob=${thing#$comp}
2481         prob=${prob#:}
2482         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2483         echo "prob ${prob:-0.5}"
2484         printf '%s\n' $comp
2485     done
2486 }
2487
2488 do_random(){
2489     action=$1
2490     shift
2491     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2492     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2493 }
2494
2495 for opt do
2496     optval="${opt#*=}"
2497     case "$opt" in
2498         --extra-ldflags=*)
2499             add_ldflags $optval
2500         ;;
2501         --extra-libs=*)
2502             add_extralibs $optval
2503         ;;
2504         --disable-devices)
2505             disable $INDEV_LIST $OUTDEV_LIST
2506         ;;
2507         --enable-debug=*)
2508             debuglevel="$optval"
2509         ;;
2510         --disable-programs)
2511             disable $PROGRAM_LIST
2512         ;;
2513         --disable-everything)
2514             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2515         ;;
2516         --disable-all)
2517             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2518             disable $LIBRARY_LIST $PROGRAM_LIST doc
2519         ;;
2520         --enable-random|--disable-random)
2521             action=${opt%%-random}
2522             do_random ${action#--} $COMPONENT_LIST
2523         ;;
2524         --enable-random=*|--disable-random=*)
2525             action=${opt%%-random=*}
2526             do_random ${action#--} $optval
2527         ;;
2528         --enable-*=*|--disable-*=*)
2529             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2530             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2531             eval list=\$$(toupper $thing)_LIST
2532             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2533             list=$(filter "$name" $list)
2534             [ "$list" = "" ] && warn "Option $opt did not match anything"
2535             $action $list
2536         ;;
2537         --enable-?*|--disable-?*)
2538             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2539             if is_in $option $COMPONENT_LIST; then
2540                 test $action = disable && action=unset
2541                 eval $action \$$(toupper ${option%s})_LIST
2542             elif is_in $option $CMDLINE_SELECT; then
2543                 $action $option
2544             else
2545                 die_unknown $opt
2546             fi
2547         ;;
2548         --list-*)
2549             NAME="${opt#--list-}"
2550             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2551             NAME=${NAME%s}
2552             eval show_list $NAME \$$(toupper $NAME)_LIST
2553         ;;
2554         --help|-h) show_help
2555         ;;
2556         --fatal-warnings) enable fatal_warnings
2557         ;;
2558         *)
2559             optname="${opt%%=*}"
2560             optname="${optname#--}"
2561             optname=$(echo "$optname" | sed 's/-/_/g')
2562             if is_in $optname $CMDLINE_SET; then
2563                 eval $optname='$optval'
2564             elif is_in $optname $CMDLINE_APPEND; then
2565                 append $optname "$optval"
2566             else
2567                 die_unknown $opt
2568             fi
2569         ;;
2570     esac
2571 done
2572
2573 disabled logging && logfile=/dev/null
2574
2575 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2576 set >> $logfile
2577
2578 test -n "$cross_prefix" && enable cross_compile
2579
2580 if enabled cross_compile; then
2581     test -n "$arch" && test -n "$target_os" ||
2582         die "Must specify target arch and OS when cross-compiling"
2583 fi
2584
2585 ar_default="${cross_prefix}${ar_default}"
2586 cc_default="${cross_prefix}${cc_default}"
2587 cxx_default="${cross_prefix}${cxx_default}"
2588 nm_default="${cross_prefix}${nm_default}"
2589 pkg_config_default="${cross_prefix}${pkg_config_default}"
2590 ranlib="${cross_prefix}${ranlib}"
2591 strip_default="${cross_prefix}${strip_default}"
2592
2593 sysinclude_default="${sysroot}/usr/include"
2594
2595 test -n "$valgrind" && toolchain="valgrind-memcheck"
2596
2597 case "$toolchain" in
2598     clang-asan)
2599         cc_default="clang"
2600         add_cflags  -fsanitize=address
2601         add_ldflags -fsanitize=address
2602     ;;
2603     clang-tsan)
2604         cc_default="clang"
2605         add_cflags  -fsanitize=thread -pie
2606         add_ldflags -fsanitize=thread -pie
2607     ;;
2608     gcc-asan)
2609         cc_default="gcc"
2610         add_cflags  -fsanitize=address
2611         add_ldflags -fsanitize=address
2612     ;;
2613     gcc-tsan)
2614         cc_default="gcc"
2615         add_cflags  -fsanitize=thread -pie -fPIC
2616         add_ldflags -fsanitize=thread -pie -fPIC
2617     ;;
2618     valgrind-massif)
2619         target_exec_default=${valgrind:-"valgrind"}
2620         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2621     ;;
2622     valgrind-memcheck)
2623         target_exec_default=${valgrind:-"valgrind"}
2624         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2625     ;;
2626     msvc)
2627         # Check whether the current MSVC version needs the C99 converter.
2628         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2629         # support enough of C99 to build ffmpeg, but we still need to use
2630         # c99wrap for passing command line parameters with a space (for
2631         # avoiding msys path mangling/conversion issues). Default to the new
2632         # behaviour if the regexp was unable to match anything, since this
2633         # successfully parses the version number of existing supported
2634         # versions that require the converter (MSVC 2010 and 2012).
2635         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2636         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2637             cc_default="c99wrap -noconv cl"
2638         else
2639             cc_default="c99wrap cl"
2640         fi
2641         ld_default="c99wrap link"
2642         nm_default="dumpbin -symbols"
2643         ar_default="lib"
2644         target_os_default="win32"
2645     ;;
2646     icl)
2647         cc_default="c99wrap -noconv icl"
2648         ld_default="c99wrap xilink"
2649         nm_default="dumpbin -symbols"
2650         ar_default="xilib"
2651         target_os_default="win32"
2652     ;;
2653     gcov)
2654         add_cflags  -fprofile-arcs -ftest-coverage
2655         add_ldflags -fprofile-arcs -ftest-coverage
2656     ;;
2657     hardened)
2658         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2659         add_ldflags -Wl,-z,relro -Wl,-z,now
2660     ;;
2661     ?*)
2662         die "Unknown toolchain $toolchain"
2663     ;;
2664 esac
2665
2666 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2667 enabled cross_compile || host_cc_default=$cc
2668 set_default host_cc
2669
2670 if ! $pkg_config --version >/dev/null 2>&1; then
2671     warn "$pkg_config not found, library detection may fail."
2672     pkg_config=false
2673 fi
2674
2675 exesuf() {
2676     case $1 in
2677         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2678     esac
2679 }
2680
2681 EXESUF=$(exesuf $target_os)
2682 HOSTEXESUF=$(exesuf $host_os)
2683
2684 # set temporary file name
2685 : ${TMPDIR:=$TEMPDIR}
2686 : ${TMPDIR:=$TMP}
2687 : ${TMPDIR:=/tmp}
2688
2689 if [ -n "$tempprefix" ] ; then
2690     mktemp(){
2691         echo $tempprefix.${HOSTNAME}.${UID}
2692     }
2693 elif ! check_cmd mktemp -u XXXXXX; then
2694     # simple replacement for missing mktemp
2695     # NOT SAFE FOR GENERAL USE
2696     mktemp(){
2697         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2698     }
2699 fi
2700
2701 tmpfile(){
2702     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2703         (set -C; exec > $tmp) 2>/dev/null ||
2704         die "Unable to create temporary file in $TMPDIR."
2705     append TMPFILES $tmp
2706     eval $1=$tmp
2707 }
2708
2709 trap 'rm -f -- $TMPFILES' EXIT
2710
2711 tmpfile TMPASM .asm
2712 tmpfile TMPC   .c
2713 tmpfile TMPCPP .cpp
2714 tmpfile TMPE   $EXESUF
2715 tmpfile TMPH   .h
2716 tmpfile TMPO   .o
2717 tmpfile TMPS   .S
2718 tmpfile TMPSH  .sh
2719 tmpfile TMPV   .ver
2720
2721 unset -f mktemp
2722
2723 chmod +x $TMPE
2724
2725 # make sure we can execute files in $TMPDIR
2726 cat > $TMPSH 2>> $logfile <<EOF
2727 #! /bin/sh
2728 EOF
2729 chmod +x $TMPSH >> $logfile 2>&1
2730 if ! $TMPSH >> $logfile 2>&1; then
2731     cat <<EOF
2732 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2733 variable to another directory and make sure that it is not mounted noexec.
2734 EOF
2735     die "Sanity test failed."
2736 fi
2737
2738 ccc_flags(){
2739     for flag; do
2740         case $flag in
2741             -std=c99)           echo -c99                       ;;
2742             -mcpu=*)            echo -arch ${flag#*=}           ;;
2743             -mieee)             echo -ieee                      ;;
2744             -O*|-fast)          echo $flag                      ;;
2745             -fno-math-errno)    echo -assume nomath_errno       ;;
2746             -g)                 echo -g3                        ;;
2747             -Wall)              echo -msg_enable level2         ;;
2748             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2749             -Wl,*)              echo $flag                      ;;
2750             -f*|-W*)                                            ;;
2751             *)                  echo $flag                      ;;
2752         esac
2753    done
2754 }
2755
2756 cparser_flags(){
2757     for flag; do
2758         case $flag in
2759             -Wno-switch)             echo -Wno-switch-enum ;;
2760             -Wno-format-zero-length) ;;
2761             -Wdisabled-optimization) ;;
2762             -Wno-pointer-sign)       echo -Wno-other ;;
2763             *)                       echo $flag ;;
2764         esac
2765     done
2766 }
2767
2768 msvc_common_flags(){
2769     for flag; do
2770         case $flag in
2771             # In addition to specifying certain flags under the compiler
2772             # specific filters, they must be specified here as well or else the
2773             # generic catch all at the bottom will print the original flag.
2774             -Wall)                ;;
2775             -std=c99)             ;;
2776             # Common flags
2777             -fomit-frame-pointer) ;;
2778             -g)                   echo -Z7 ;;
2779             -fno-math-errno)      ;;
2780             -fno-common)          ;;
2781             -fno-signed-zeros)    ;;
2782             -fPIC)                ;;
2783             -mthumb)              ;;
2784             -march=*)             ;;
2785             -lz)                  echo zlib.lib ;;
2786             -lavifil32)           echo vfw32.lib ;;
2787             -lavicap32)           echo vfw32.lib user32.lib ;;
2788             -l*)                  echo ${flag#-l}.lib ;;
2789             *)                    echo $flag ;;
2790         esac
2791     done
2792 }
2793
2794 msvc_flags(){
2795     msvc_common_flags "$@"
2796     for flag; do
2797         case $flag in
2798             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2799                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2800                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2801                                        -wd4554 \
2802                                        -wd4273 ;;
2803         esac
2804     done
2805 }
2806
2807 icl_flags(){
2808     msvc_common_flags "$@"
2809     for flag; do
2810         case $flag in
2811             # Despite what Intel's documentation says -Wall, which is supported
2812             # on Windows, does enable remarks so disable them here.
2813             -Wall)                echo $flag -Qdiag-disable:remark ;;
2814             -std=c99)             echo -Qstd=c99 ;;
2815         esac
2816     done
2817 }
2818
2819 pgi_flags(){
2820     for flag; do
2821         case $flag in
2822             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2823             -fomit-frame-pointer) echo -Mnoframe ;;
2824             -g)                   echo -gopt ;;
2825             *)                    echo $flag ;;
2826         esac
2827     done
2828 }
2829
2830 suncc_flags(){
2831     for flag; do
2832         case $flag in
2833             -march=*|-mcpu=*)
2834                 case "${flag#*=}" in
2835                     native)                   echo -xtarget=native       ;;
2836                     v9|niagara)               echo -xarch=sparc          ;;
2837                     ultrasparc)               echo -xarch=sparcvis       ;;
2838                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2839                     i586|pentium)             echo -xchip=pentium        ;;
2840                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2841                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2842                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2843                     pentium4*)          echo -xtarget=pentium4           ;;
2844                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2845                     *-sse3)             echo -xarch=sse3                 ;;
2846                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2847                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2848                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2849                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2850                     bdver*)                    echo -xarch=avx           ;;
2851                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2852                     k8|opteron|athlon64|athlon-fx)
2853                                                echo -xarch=sse2a         ;;
2854                     athlon*)                   echo -xarch=pentium_proa  ;;
2855                 esac
2856                 ;;
2857             -std=c99)             echo -xc99              ;;
2858             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2859             -fPIC)                echo -KPIC -xcode=pic32 ;;
2860             -W*,*)                echo $flag              ;;
2861             -f*-*|-W*|-mimpure-text)                      ;;
2862             -shared)              echo -G                 ;;
2863             *)                    echo $flag              ;;
2864         esac
2865     done
2866 }
2867
2868 tms470_flags(){
2869     for flag; do
2870         case $flag in
2871             -march=*|-mcpu=*)
2872                 case "${flag#*=}" in
2873                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2874                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2875                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2876                     armv6*|arm11*)          echo -mv=6   ;;
2877                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2878                                             echo -mv=5e  ;;
2879                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2880                 esac
2881                 ;;
2882             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2883             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2884             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2885             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2886             -msoft-float)   echo --float_support=vfplib       ;;
2887             -O[0-3]|-mf=*)  echo $flag                        ;;
2888             -g)             echo -g -mn                       ;;
2889             -pds=*)         echo $flag                        ;;
2890             -D*|-I*)        echo $flag                        ;;
2891             --gcc|--abi=*)  echo $flag                        ;;
2892             -me)            echo $flag                        ;;
2893         esac
2894     done
2895 }
2896
2897 probe_cc(){
2898     pfx=$1
2899     _cc=$2
2900
2901     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2902     unset _ld_o _ldflags _ld_lib _ld_path
2903     unset _depflags _DEPCMD _DEPFLAGS
2904     _flags_filter=echo
2905
2906     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
2907         true # no-op to avoid reading stdin in following checks
2908     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2909         _type=llvm_gcc
2910         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2911         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2912         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2913         _cflags_speed='-O3'
2914         _cflags_size='-Os'
2915     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2916         _type=gcc
2917         gcc_version=$($_cc --version | head -n1)
2918         gcc_basever=$($_cc -dumpversion)
2919         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2920         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2921         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2922         if ! $_cc -dumpversion | grep -q '^2\.'; then
2923             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2924         fi
2925         _cflags_speed='-O3'
2926         _cflags_size='-Os'
2927     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2928         _type=icc
2929         _ident=$($_cc --version | head -n1)
2930         _depflags='-MMD'
2931         _cflags_speed='-O3'
2932         _cflags_size='-Os'
2933         _cflags_noopt='-O1'
2934     elif $_cc -v 2>&1 | grep -q xlc; then
2935         _type=xlc
2936         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2937         _cflags_speed='-O5'
2938         _cflags_size='-O5 -qcompact'
2939     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2940         _type=ccc
2941         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2942         _DEPFLAGS='-M'
2943         _cflags_speed='-fast'
2944         _cflags_size='-O1'
2945         _flags_filter=ccc_flags
2946     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2947         test -d "$sysroot" || die "No valid sysroot specified."
2948         _type=armcc
2949         _ident=$($_cc --vsn | head -n1)
2950         armcc_conf="$PWD/armcc.conf"
2951         $_cc --arm_linux_configure                 \
2952              --arm_linux_config_file="$armcc_conf" \
2953              --configure_sysroot="$sysroot"        \
2954              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2955              die "Error creating armcc configuration file."
2956         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2957         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2958         as_default="${cross_prefix}gcc"
2959         _depflags='-MMD'
2960         _cflags_speed='-O3'
2961         _cflags_size='-Os'
2962     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2963         _type=tms470
2964         _ident=$($_cc -version | head -n1 | tr -s ' ')
2965         _flags='--gcc --abi=eabi -me'
2966         _cc_e='-ppl -fe=$@'
2967         _cc_o='-fe=$@'
2968         _depflags='-ppa -ppd=$(@:.o=.d)'
2969         _cflags_speed='-O3 -mf=5'
2970         _cflags_size='-O3 -mf=2'
2971         _flags_filter=tms470_flags
2972     elif $_cc -v 2>&1 | grep -q clang; then
2973         _type=clang
2974         _ident=$($_cc --version | head -n1)
2975         _depflags='-MMD'
2976         _cflags_speed='-O3'
2977         _cflags_size='-Os'
2978     elif $_cc -V 2>&1 | grep -q Sun; then
2979         _type=suncc
2980         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2981         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2982         _DEPFLAGS='-xM1 -xc99'
2983         _ldflags='-std=c99'
2984         _cflags_speed='-O5'
2985         _cflags_size='-O5 -xspace'
2986         _flags_filter=suncc_flags
2987     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2988         _type=pathscale
2989         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2990         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2991         _cflags_speed='-O2'
2992         _cflags_size='-Os'
2993         _flags_filter='filter_out -Wdisabled-optimization'
2994     elif $_cc -v 2>&1 | grep -q Open64; then
2995         _type=open64
2996         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2997         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2998         _cflags_speed='-O2'
2999         _cflags_size='-Os'
3000         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3001     elif $_cc -V 2>&1 | grep -q Portland; then
3002         _type=pgi
3003         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3004         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3005         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3006         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3007         _cflags_noopt="-O"
3008         _flags_filter=pgi_flags
3009     elif $_cc 2>&1 | grep -q Microsoft; then
3010         _type=msvc
3011         _ident=$($cc 2>&1 | head -n1)
3012         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3013         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3014         _cflags_speed="-O2"
3015         _cflags_size="-O1"
3016         # Nonstandard output options, to avoid msys path conversion issues.
3017         # Relies on wrapper to remap it.
3018         if $_cc 2>&1 | grep -q Linker; then
3019             _ld_o='-out $@'
3020         else
3021             _ld_o='-Fe$@'
3022         fi
3023         _cc_o='-Fo $@'
3024         _cc_e='-P -Fi $@'
3025         _flags_filter=msvc_flags
3026         _ld_lib='lib%.a'
3027         _ld_path='-libpath:'
3028         _flags='-nologo'
3029         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3030         if [ $pfx = hostcc ]; then
3031             append _cflags -Dsnprintf=_snprintf
3032         fi
3033         disable stripping
3034     elif $_cc 2>&1 | grep -q Intel; then
3035         _type=icl
3036         _ident=$($cc 2>&1 | head -n1)
3037         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3038         # Not only is O3 broken on 13.x+ but it is slower on all previous
3039         # versions (tested) as well.
3040         _cflags_speed="-O2"
3041         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3042         # Nonstandard output options, to avoid msys path conversion issues.
3043         # Relies on wrapper to remap it.
3044         if $_cc 2>&1 | grep -q Linker; then
3045             _ld_o='-out $@'
3046         else
3047             _ld_o='-Fe$@'
3048         fi
3049         _cc_o='-Fo $@'
3050         _cc_e='-P'
3051         _flags_filter=icl_flags
3052         _ld_lib='lib%.a'
3053         _ld_path='-libpath:'
3054         # -Qdiag-error to make icl error when seeing certain unknown arguments
3055         _flags='-nologo -Qdiag-error:4044,10157'
3056         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3057         # with MSVC which enables it by default.
3058         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3059         if [ $pfx = hostcc ]; then
3060             append _cflags -Dsnprintf=_snprintf
3061         fi
3062     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3063         _type=cparser
3064         _ident=$($_cc --version | head -n1)
3065         _depflags='-MMD'
3066         _cflags_speed='-O4'
3067         _cflags_size='-O2'
3068         _flags_filter=cparser_flags
3069     fi
3070
3071     eval ${pfx}_type=\$_type
3072     eval ${pfx}_ident=\$_ident
3073 }
3074
3075 set_ccvars(){
3076     eval ${1}_C=\${_cc_c-\${${1}_C}}
3077     eval ${1}_E=\${_cc_e-\${${1}_E}}
3078     eval ${1}_O=\${_cc_o-\${${1}_O}}
3079
3080     if [ -n "$_depflags" ]; then
3081         eval ${1}_DEPFLAGS=\$_depflags
3082     else
3083         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3084         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3085         eval DEP${1}FLAGS=\$_flags
3086     fi
3087 }
3088
3089 probe_cc cc "$cc"
3090 cflags_filter=$_flags_filter
3091 cflags_speed=$_cflags_speed
3092 cflags_size=$_cflags_size
3093 cflags_noopt=$_cflags_noopt
3094 add_cflags $_flags $_cflags
3095 cc_ldflags=$_ldflags
3096 set_ccvars CC
3097
3098 probe_cc hostcc "$host_cc"
3099 host_cflags_filter=$_flags_filter
3100 add_host_cflags  $_flags $_cflags
3101 set_ccvars HOSTCC
3102
3103 test -n "$cc_type" && enable $cc_type ||
3104     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3105
3106 : ${as_default:=$cc}
3107 : ${dep_cc_default:=$cc}
3108 : ${ld_default:=$cc}
3109 : ${host_ld_default:=$host_cc}
3110 set_default ar as dep_cc ld host_ld
3111
3112 probe_cc as "$as"
3113 asflags_filter=$_flags_filter
3114 add_asflags $_flags $_cflags
3115 set_ccvars AS
3116
3117 probe_cc ld "$ld"
3118 ldflags_filter=$_flags_filter
3119 add_ldflags $_flags $_ldflags
3120 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3121 LD_O=${_ld_o-$LD_O}
3122 LD_LIB=${_ld_lib-$LD_LIB}
3123 LD_PATH=${_ld_path-$LD_PATH}
3124
3125 probe_cc hostld "$host_ld"
3126 host_ldflags_filter=$_flags_filter
3127 add_host_ldflags $_flags $_ldflags
3128 HOSTLD_O=${_ld_o-$HOSTLD_O}
3129
3130 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3131     probe_cc depcc "$dep_cc"
3132     CCDEP=${_DEPCMD:-$DEPCMD}
3133     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3134     DEPCCFLAGS=$_flags
3135 fi
3136
3137 if $ar 2>&1 | grep -q Microsoft; then
3138     arflags="-nologo"
3139     ar_o='-out:$@'
3140 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3141     arflags="rq"
3142     ar_o='$@'
3143 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3144     arflags='-Xany -r -c'
3145     ar_o='$@'
3146 else
3147     arflags="rc"
3148     ar_o='$@'
3149 fi
3150
3151 add_cflags $extra_cflags
3152 add_cxxflags $extra_cxxflags
3153 add_asflags $extra_cflags
3154
3155 if test -n "$sysroot"; then
3156     case "$cc_type" in
3157         gcc|llvm_gcc|clang)
3158             add_cppflags --sysroot="$sysroot"
3159             add_ldflags --sysroot="$sysroot"
3160         ;;
3161         tms470)
3162             add_cppflags -I"$sysinclude"
3163             add_ldflags  --sysroot="$sysroot"
3164         ;;
3165     esac
3166 fi
3167
3168 if test "$cpu" = host; then
3169     enabled cross_compile &&
3170         die "--cpu=host makes no sense when cross-compiling."
3171
3172     case "$cc_type" in
3173         gcc|llvm_gcc)
3174             check_native(){
3175                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3176                 sed -n "/cc1.*$1=/{
3177                             s/.*$1=\\([^ ]*\\).*/\\1/
3178                             p
3179                             q
3180                         }" $TMPE
3181             }
3182             cpu=$(check_native -march || check_native -mcpu)
3183         ;;
3184     esac
3185
3186     test "${cpu:-host}" = host &&
3187         die "--cpu=host not supported with compiler $cc"
3188 fi
3189
3190 # Deal with common $arch aliases
3191 case "$arch" in
3192     aarch64|arm64)
3193         arch="aarch64"
3194     ;;
3195     arm*|iPad*|iPhone*)
3196         arch="arm"
3197     ;;
3198     mips*|IP*)
3199         arch="mips"
3200     ;;
3201     parisc*|hppa*)
3202         arch="parisc"
3203     ;;
3204     "Power Macintosh"|ppc*|powerpc*)
3205         arch="ppc"
3206     ;;
3207     s390|s390x)
3208         arch="s390"
3209     ;;
3210     sh4|sh)
3211         arch="sh4"
3212     ;;
3213     sun4u|sparc*)
3214         arch="sparc"
3215     ;;
3216     tilegx|tile-gx)
3217         arch="tilegx"
3218     ;;
3219     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3220         arch="x86"
3221     ;;
3222 esac
3223
3224 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3225 enable $arch
3226
3227 # Add processor-specific flags
3228 if enabled aarch64; then
3229
3230     case $cpu in
3231         armv*)
3232             cpuflags="-march=$cpu"
3233         ;;
3234         *)
3235             cpuflags="-mcpu=$cpu"
3236         ;;
3237     esac
3238
3239 elif enabled alpha; then
3240
3241     cpuflags="-mcpu=$cpu"
3242
3243 elif enabled arm; then
3244
3245     check_arm_arch() {
3246         check_cpp_condition stddef.h \
3247             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3248             $cpuflags
3249     }
3250
3251     probe_arm_arch() {
3252         if   check_arm_arch 4;        then echo armv4;
3253         elif check_arm_arch 4T;       then echo armv4t;
3254         elif check_arm_arch 5;        then echo armv5;
3255         elif check_arm_arch 5E;       then echo armv5e;
3256         elif check_arm_arch 5T;       then echo armv5t;
3257         elif check_arm_arch 5TE;      then echo armv5te;
3258         elif check_arm_arch 5TEJ;     then echo armv5te;
3259         elif check_arm_arch 6;        then echo armv6;
3260         elif check_arm_arch 6J;       then echo armv6j;
3261         elif check_arm_arch 6K;       then echo armv6k;
3262         elif check_arm_arch 6Z;       then echo armv6z;
3263         elif check_arm_arch 6ZK;      then echo armv6zk;
3264         elif check_arm_arch 6T2;      then echo armv6t2;
3265         elif check_arm_arch 7;        then echo armv7;
3266         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3267         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3268         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3269         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3270         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3271         fi
3272     }
3273
3274     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3275
3276     case $cpu in
3277         armv*)
3278             cpuflags="-march=$cpu"
3279             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3280         ;;
3281         *)
3282             cpuflags="-mcpu=$cpu"
3283             case $cpu in
3284                 cortex-a*)                               subarch=armv7a  ;;
3285                 cortex-r*)                               subarch=armv7r  ;;
3286                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3287                 arm11*)                                  subarch=armv6   ;;
3288                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3289                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3290                 *)                             subarch=$(probe_arm_arch) ;;
3291             esac
3292         ;;
3293     esac
3294
3295     case "$subarch" in
3296         armv5t*)    enable fast_clz                ;;
3297         armv[6-8]*) enable fast_clz fast_unaligned ;;
3298     esac
3299
3300 elif enabled avr32; then
3301
3302     case $cpu in
3303         ap7[02]0[0-2])
3304             subarch="avr32_ap"
3305             cpuflags="-mpart=$cpu"
3306         ;;
3307         ap)
3308             subarch="avr32_ap"
3309             cpuflags="-march=$cpu"
3310         ;;
3311         uc3[ab]*)
3312             subarch="avr32_uc"
3313             cpuflags="-mcpu=$cpu"
3314         ;;
3315         uc)
3316             subarch="avr32_uc"
3317             cpuflags="-march=$cpu"
3318         ;;
3319     esac
3320
3321 elif enabled bfin; then
3322
3323     cpuflags="-mcpu=$cpu"
3324
3325 elif enabled mips; then
3326
3327     cpuflags="-march=$cpu"
3328
3329     case $cpu in
3330         24kc)
3331             disable mipsfpu
3332             disable mipsdspr1
3333             disable mipsdspr2
3334         ;;
3335         24kf*)
3336             disable mipsdspr1
3337             disable mipsdspr2
3338         ;;
3339         24kec|34kc|1004kc)
3340             disable mipsfpu
3341             disable mipsdspr2
3342         ;;
3343         24kef*|34kf*|1004kf*)
3344             disable mipsdspr2
3345         ;;
3346         74kc)
3347             disable mipsfpu
3348         ;;
3349     esac
3350
3351 elif enabled ppc; then
3352
3353     case $(tolower $cpu) in
3354         601|ppc601|powerpc601)
3355             cpuflags="-mcpu=601"
3356             disable altivec
3357         ;;
3358         603*|ppc603*|powerpc603*)
3359             cpuflags="-mcpu=603"
3360             disable altivec
3361         ;;
3362         604*|ppc604*|powerpc604*)
3363             cpuflags="-mcpu=604"
3364             disable altivec
3365         ;;
3366         g3|75*|ppc75*|powerpc75*)
3367             cpuflags="-mcpu=750"
3368             disable altivec
3369         ;;
3370         g4|745*|ppc745*|powerpc745*)
3371             cpuflags="-mcpu=7450"
3372         ;;
3373         74*|ppc74*|powerpc74*)
3374             cpuflags="-mcpu=7400"
3375         ;;
3376         g5|970|ppc970|powerpc970)
3377             cpuflags="-mcpu=970"
3378         ;;
3379         power[3-7]*)
3380             cpuflags="-mcpu=$cpu"
3381         ;;
3382         cell)
3383             cpuflags="-mcpu=cell"
3384             enable ldbrx
3385         ;;
3386         e500mc)
3387             cpuflags="-mcpu=e500mc"
3388             disable altivec
3389         ;;
3390         e500v2)
3391             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3392             disable altivec
3393         ;;
3394         e500)
3395             cpuflags="-mcpu=8540 -mhard-float"
3396             disable altivec
3397         ;;
3398     esac
3399
3400 elif enabled sparc; then
3401
3402     case $cpu in
3403         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3404             cpuflags="-mcpu=$cpu"
3405             disable vis
3406         ;;
3407         ultrasparc*|niagara[234])
3408             cpuflags="-mcpu=$cpu"
3409         ;;
3410     esac
3411
3412 elif enabled x86; then
3413
3414     case $cpu in
3415         i[345]86|pentium)
3416             cpuflags="-march=$cpu"
3417             disable mmx
3418         ;;
3419         # targets that do NOT support nopl and conditional mov (cmov)
3420         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3421             cpuflags="-march=$cpu"
3422             disable i686
3423         ;;
3424         # targets that do support nopl and conditional mov (cmov)
3425         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3426             cpuflags="-march=$cpu"
3427             enable i686
3428             enable fast_cmov
3429         ;;
3430         # targets that do support conditional mov but on which it's slow
3431         pentium4|pentium4m|prescott|nocona)
3432             cpuflags="-march=$cpu"
3433             enable i686
3434             disable fast_cmov
3435         ;;
3436     esac
3437
3438 fi
3439
3440 if [ "$cpu" != generic ]; then
3441     add_cflags  $cpuflags
3442     add_asflags $cpuflags
3443 fi
3444
3445 # compiler sanity check
3446 check_exec <<EOF
3447 int main(void){ return 0; }
3448 EOF
3449 if test "$?" != 0; then
3450     echo "$cc is unable to create an executable file."
3451     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3452         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3453         echo "Only do this if you know what cross compiling means."
3454     fi
3455     die "C compiler test failed."
3456 fi
3457
3458 add_cppflags -D_ISOC99_SOURCE
3459 add_cxxflags -D__STDC_CONSTANT_MACROS
3460 check_cflags -std=c99
3461 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3462 #include <stdlib.h>
3463 EOF
3464 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3465 #include <stdlib.h>
3466 EOF
3467
3468 check_host_cflags -std=c99
3469 check_host_cflags -Wall
3470
3471 check_64bit(){
3472     arch32=$1
3473     arch64=$2
3474     expr=$3
3475     check_code cc "" "int test[2*($expr) - 1]" &&
3476         subarch=$arch64 || subarch=$arch32
3477 }
3478
3479 case "$arch" in
3480     aarch64|alpha|ia64)
3481         spic=$shared
3482     ;;
3483     mips)
3484         check_64bit mips mips64 '_MIPS_SIM > 1'
3485         spic=$shared
3486     ;;
3487     parisc)
3488         check_64bit parisc parisc64 'sizeof(void *) > 4'
3489         spic=$shared
3490     ;;
3491     ppc)
3492         check_64bit ppc ppc64 'sizeof(void *) > 4'
3493         spic=$shared
3494     ;;
3495     sparc)
3496         check_64bit sparc sparc64 'sizeof(void *) > 4'
3497         spic=$shared
3498     ;;
3499     x86)
3500         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3501         if test "$subarch" = "x86_64"; then
3502             spic=$shared
3503         fi
3504     ;;
3505     ppc)
3506         check_cc <<EOF && subarch="ppc64"
3507         int test[(int)sizeof(char*) - 7];
3508 EOF
3509     ;;
3510 esac
3511
3512 enable $subarch
3513 enabled spic && enable_weak pic
3514
3515 # OS specific
3516 case $target_os in
3517     aix)
3518         SHFLAGS=-shared
3519         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3520         enabled shared && add_ldflags -Wl,-brtl
3521         ;;
3522     haiku)
3523         prefix_default="/boot/common"
3524         network_extralibs="-lnetwork"
3525         host_libs=
3526         ;;
3527     sunos)
3528         SHFLAGS='-shared -Wl,-h,$$(@F)'
3529         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3530         network_extralibs="-lsocket -lnsl"
3531         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3532         # When using suncc to build, the Solaris linker will mark
3533         # an executable with each instruction set encountered by
3534         # the Solaris assembler.  As our libraries contain their own
3535         # guards for processor-specific code, instead suppress
3536         # generation of the HWCAPS ELF section on Solaris x86 only.
3537         enabled_all suncc x86 &&
3538             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3539             add_ldflags -Wl,-M,mapfile
3540         nm_default='nm -P -g'
3541         ;;
3542     netbsd)
3543         disable symver
3544         oss_indev_extralibs="-lossaudio"
3545         oss_outdev_extralibs="-lossaudio"
3546         enabled gcc || check_ldflags -Wl,-zmuldefs
3547         ;;
3548     openbsd|bitrig)
3549         disable symver
3550         SHFLAGS='-shared'
3551         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3552         SLIB_INSTALL_LINKS=
3553         oss_indev_extralibs="-lossaudio"
3554         oss_outdev_extralibs="-lossaudio"
3555         ;;
3556     dragonfly)
3557         disable symver
3558         ;;
3559     freebsd)
3560         ;;
3561     bsd/os)
3562         add_extralibs -lpoll -lgnugetopt
3563         strip="strip -d"
3564         ;;
3565     darwin)
3566         gas="gas-preprocessor.pl $cc"
3567         enabled ppc && add_asflags -force_cpusubtype_ALL
3568         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3569         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3570         strip="${strip} -x"
3571         add_ldflags -Wl,-dynamic,-search_paths_first
3572         SLIBSUF=".dylib"
3573         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3574         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3575         objformat="macho"
3576         enabled x86_64 && objformat="macho64"
3577         enabled_any pic shared ||
3578             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3579         ;;
3580     mingw32*)
3581         if test $target_os = "mingw32ce"; then
3582             disable network
3583         else
3584             target_os=mingw32
3585         fi
3586         LIBTARGET=i386
3587         if enabled x86_64; then
3588             LIBTARGET="i386:x86-64"
3589         elif enabled arm; then
3590             LIBTARGET=arm-wince
3591         fi
3592         check_ldflags -Wl,--nxcompat
3593         check_ldflags -Wl,--dynamicbase
3594         shlibdir_default="$bindir_default"
3595         SLIBPREF=""
3596         SLIBSUF=".dll"
3597         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3598         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3599         dlltool="${cross_prefix}dlltool"
3600         if check_cmd lib.exe -list; then
3601             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3602             if enabled x86_64; then
3603                 LIBTARGET=x64
3604             fi
3605         elif check_cmd $dlltool --version; then
3606             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3607         fi
3608         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3609         SLIB_INSTALL_LINKS=
3610         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3611         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3612         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3613         objformat="win32"
3614         ranlib=:
3615         enable dos_paths
3616         ;;
3617     win32|win64)
3618         if enabled shared; then
3619             # Link to the import library instead of the normal static library
3620             # for shared libs.
3621             LD_LIB='%.lib'
3622             # Cannot build both shared and static libs with MSVC or icl.
3623             disable static
3624         fi
3625         shlibdir_default="$bindir_default"
3626         SLIBPREF=""
3627         SLIBSUF=".dll"
3628         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3629         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3630         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3631         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3632         SLIB_INSTALL_LINKS=
3633         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3634         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3635         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3636         objformat="win32"
3637         ranlib=:
3638         enable dos_paths
3639         ;;
3640     cygwin*)
3641         target_os=cygwin
3642         shlibdir_default="$bindir_default"
3643         SLIBPREF="cyg"
3644         SLIBSUF=".dll"
3645         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3646         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3647         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3648         SLIB_INSTALL_LINKS=
3649         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3650         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3651         objformat="win32"
3652         enable dos_paths
3653         ;;
3654     *-dos|freedos|opendos)
3655         network_extralibs="-lsocket"
3656         objformat="coff"
3657         enable dos_paths
3658         add_cppflags -U__STRICT_ANSI__
3659         ;;
3660     linux)
3661         enable dv1394
3662         ;;
3663     irix*)
3664         target_os=irix
3665         ranlib="echo ignoring ranlib"
3666         ;;
3667     os/2*)
3668         strip="lxlite -CS"
3669         ln_s="cp -f"
3670         objformat="aout"
3671         add_cppflags -D_GNU_SOURCE
3672         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3673         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3674         LIBSUF="_s.a"
3675         SLIBPREF=""
3676         SLIBSUF=".dll"
3677         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3678         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3679         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3680             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3681             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3682             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3683             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3684             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3685         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3686             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3687         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3688         enable dos_paths
3689         enable_weak os2threads
3690         ;;
3691     gnu/kfreebsd)
3692         add_cppflags -D_BSD_SOURCE
3693         ;;
3694     gnu)
3695         ;;
3696     qnx)
3697         add_cppflags -D_QNX_SOURCE
3698         network_extralibs="-lsocket"
3699         ;;
3700     symbian)
3701         SLIBSUF=".dll"
3702         enable dos_paths
3703         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3704         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3705         add_ldflags -Wl,--target1-abs,--no-undefined \
3706                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3707                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3708         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3709                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3710                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3711         ;;
3712     osf1)
3713         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3714         ;;
3715     minix)
3716         ;;
3717     plan9)
3718         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3719                      -D_REENTRANT_SOURCE        \
3720                      -D_RESEARCH_SOURCE         \
3721                      -DFD_SETSIZE=96            \
3722                      -DHAVE_SOCK_OPTS
3723         add_compat strtod.o strtod=avpriv_strtod
3724         network_extralibs='-lbsd'
3725         exeobjs=compat/plan9/main.o
3726         disable ffserver
3727         cp_f='cp'
3728         ;;
3729     none)
3730         ;;
3731     *)
3732         die "Unknown OS '$target_os'."
3733         ;;
3734 esac
3735
3736 # determine libc flavour
3737
3738 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3739 if check_cpp_condition features.h "defined __UCLIBC__"; then
3740     libc_type=uclibc
3741     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3742 elif check_cpp_condition features.h "defined __GLIBC__"; then
3743     libc_type=glibc
3744     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3745 # MinGW headers can be installed on Cygwin, so check for newlib first.
3746 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3747     libc_type=newlib
3748     add_cppflags -U__STRICT_ANSI__
3749 elif check_header _mingw.h; then
3750     libc_type=mingw
3751     check_cpp_condition _mingw.h \
3752         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3753             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3754         die "ERROR: MinGW runtime version must be >= 3.15."
3755     add_cppflags -U__STRICT_ANSI__
3756     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3757             __MINGW64_VERSION_MAJOR < 3"; then
3758         add_compat msvcrt/snprintf.o
3759         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3760     else
3761         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3762     fi
3763 elif check_func_headers stdlib.h _get_doserrno; then
3764     libc_type=msvcrt
3765     add_compat strtod.o strtod=avpriv_strtod
3766     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3767                                  _snprintf=avpriv_snprintf  \
3768                                  vsnprintf=avpriv_vsnprintf
3769     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3770     # 0x601 by default unless something else is set by the user.
3771     # This can easily lead to us detecting functions only present
3772     # in such new versions and producing binaries requiring windows 7.0.
3773     # Therefore explicitly set the default to XP unless the user has
3774     # set something else on the command line.
3775     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3776 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3777     libc_type=klibc
3778 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3779     libc_type=bionic
3780     add_compat strtod.o strtod=avpriv_strtod
3781 fi
3782
3783 test -n "$libc_type" && enable $libc_type
3784
3785 # hacks for compiler/libc/os combinations
3786
3787 if enabled_all tms470 glibc; then
3788     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3789     add_cppflags -D__USER_LABEL_PREFIX__=
3790     add_cppflags -D__builtin_memset=memset
3791     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3792     add_cflags   -pds=48    # incompatible redefinition of macro
3793 fi
3794
3795 if enabled_all ccc glibc; then
3796     add_ldflags -Wl,-z,now  # calls to libots crash without this
3797 fi
3798
3799 esc(){
3800     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3801 }
3802
3803 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3804
3805 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3806
3807 set_default $PATHS_LIST
3808 set_default nm
3809
3810 # we need to build at least one lib type
3811 if ! enabled_any static shared; then
3812     cat <<EOF
3813 At least one library type must be built.
3814 Specify --enable-static to build the static libraries or --enable-shared to
3815 build the shared libraries as well. To only build the shared libraries specify
3816 --disable-static in addition to --enable-shared.
3817 EOF
3818     exit 1;
3819 fi
3820
3821 # backward compatibility layer for incompatible_libav/fork_abi
3822 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3823 enabled incompatible_libav_abi && enable incompatible_fork_abi
3824
3825 die_license_disabled() {
3826     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3827 }
3828
3829 die_license_disabled_gpl() {
3830     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3831 }
3832
3833 die_license_disabled gpl frei0r
3834 die_license_disabled gpl libcdio
3835 die_license_disabled gpl libutvideo
3836 die_license_disabled gpl libvidstab
3837 die_license_disabled gpl libx264
3838 die_license_disabled gpl libxavs
3839 die_license_disabled gpl libxvid
3840 die_license_disabled gpl libzvbi
3841 die_license_disabled gpl x11grab
3842
3843 die_license_disabled nonfree libaacplus
3844 die_license_disabled nonfree libfaac
3845 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3846 enabled gpl && die_license_disabled_gpl nonfree openssl
3847
3848 die_license_disabled version3 libopencore_amrnb
3849 die_license_disabled version3 libopencore_amrwb
3850 die_license_disabled version3 libvo_aacenc
3851 die_license_disabled version3 libvo_amrwbenc
3852
3853 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3854
3855 disabled optimizations || check_cflags -fomit-frame-pointer
3856
3857 enable_weak_pic() {
3858     disabled pic && return
3859     enable pic
3860     add_cppflags -DPIC
3861     case "$target_os" in
3862     mingw*|cygwin*)
3863         ;;
3864     *)
3865         add_cflags -fPIC
3866         ;;
3867     esac
3868     add_asflags  -fPIC
3869 }
3870
3871 enabled pic && enable_weak_pic
3872
3873 check_cc <<EOF || die "Symbol mangling check failed."
3874 int ff_extern;
3875 EOF
3876 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3877 extern_prefix=${sym%%ff_extern*}
3878
3879 check_cc <<EOF && enable_weak inline_asm
3880 void foo(void) { __asm__ volatile ("" ::); }
3881 EOF
3882
3883 _restrict=
3884 for restrict_keyword in restrict __restrict__ __restrict; do
3885     check_cc <<EOF && _restrict=$restrict_keyword && break
3886 void foo(char * $restrict_keyword p);
3887 EOF
3888 done
3889
3890 check_cc <<EOF && enable pragma_deprecated
3891 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3892 EOF
3893
3894 check_cc <<EOF && enable attribute_packed
3895 struct { int x; } __attribute__((packed)) x;
3896 EOF
3897
3898 check_cc <<EOF && enable attribute_may_alias
3899 union { int x; } __attribute__((may_alias)) x;
3900 EOF
3901
3902 check_cc <<EOF || die "endian test failed"
3903 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3904 EOF
3905 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3906
3907 check_inline_asm inline_asm_labels '"1:\n"'
3908
3909 if enabled alpha; then
3910
3911     check_cflags -mieee
3912
3913 elif enabled arm; then
3914
3915     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3916 float func(float a, float b){ return a+b; }
3917 EOF
3918
3919     enabled thumb && check_cflags -mthumb || check_cflags -marm
3920     nogas=die
3921
3922     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3923         enable vfp_args
3924     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3925         case "${cross_prefix:-$cc}" in
3926             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3927             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3928 __asm__ (".eabi_attribute 28, 1");
3929 int main(void) { return 0; }
3930 EOF
3931         esac
3932         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3933     fi
3934
3935     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3936     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3937     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3938     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3939     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3940     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3941
3942     [ $target_os = linux ] ||
3943         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3944             $ARCH_EXT_LIST_ARM
3945
3946     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3947     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3948
3949     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3950
3951 elif enabled mips; then
3952
3953     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3954     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3955      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3956     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3957      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3958     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3959      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3960     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3961      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3962
3963 elif enabled parisc; then
3964
3965     if enabled gcc; then
3966         case $($cc -dumpversion) in
3967             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3968         esac
3969     fi
3970
3971 elif enabled ppc; then
3972
3973     enable local_aligned_8 local_aligned_16
3974
3975     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3976     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3977     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3978     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3979
3980     # AltiVec flags: The FSF version of GCC differs from the Apple version
3981     if enabled altivec; then
3982         if ! enabled_any pic ppc64; then
3983             nogas=warn
3984         fi
3985         check_cflags -maltivec -mabi=altivec &&
3986         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3987         check_cflags -faltivec
3988
3989         # check if our compiler supports Motorola AltiVec C API
3990         check_cc <<EOF || disable altivec
3991 $inc_altivec_h
3992 int main(void) {
3993     vector signed int v1 = (vector signed int) { 0 };
3994     vector signed int v2 = (vector signed int) { 1 };
3995     v1 = vec_add(v1, v2);
3996     return 0;
3997 }
3998 EOF
3999
4000         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4001     fi
4002
4003 elif enabled sparc; then
4004
4005     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
4006
4007 elif enabled x86; then
4008
4009     check_builtin rdtsc    intrin.h   "__rdtsc()"
4010     check_builtin mm_empty mmintrin.h "_mm_empty()"
4011
4012     enable local_aligned_8 local_aligned_16
4013
4014     # check whether EBP is available on x86
4015     # As 'i' is stored on the stack, this program will crash
4016     # if the base pointer is used to access it because the
4017     # base pointer is cleared in the inline assembly code.
4018     check_exec_crash <<EOF && enable ebp_available
4019 volatile int i=0;
4020 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4021 return i;
4022 EOF
4023
4024     # check whether EBX is available on x86
4025     check_inline_asm ebx_available '""::"b"(0)' &&
4026         check_inline_asm ebx_available '"":::"%ebx"'
4027
4028     # check whether xmm clobbers are supported
4029     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4030
4031     # check whether binutils is new enough to compile SSSE3/MMXEXT
4032     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4033     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4034
4035     if ! disabled_any asm mmx yasm; then
4036         if check_cmd $yasmexe --version; then
4037             enabled x86_64 && yasm_extra="-m amd64"
4038             yasm_debug="-g dwarf2"
4039         elif check_cmd nasm -v; then
4040             yasmexe=nasm
4041             yasm_debug="-g -F dwarf"
4042             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4043         fi
4044
4045         YASMFLAGS="-f $objformat $yasm_extra"
4046         enabled pic               && append YASMFLAGS "-DPIC"
4047         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4048         case "$objformat" in
4049             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4050         esac
4051
4052         check_yasm "movbe ecx, [5]" && enable yasm ||
4053             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4054         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4055         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4056         check_yasm "CPU amdnop" && enable cpunop
4057     fi
4058
4059     case "$cpu" in
4060         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4061             disable fast_clz
4062         ;;
4063     esac
4064
4065 fi
4066
4067 if enabled asm; then
4068     as=${gas:=$as}
4069     check_as <<EOF && enable gnu_as || \
4070         $nogas "GNU assembler not found, install gas-preprocessor"
4071 .macro m n
4072 \n: .int 0
4073 .endm
4074 m x
4075 EOF
4076 fi
4077
4078 check_ldflags -Wl,--as-needed
4079
4080 if check_func dlopen; then
4081     ldl=
4082 elif check_func dlopen -ldl; then
4083     ldl=-ldl
4084 fi
4085
4086 if ! disabled network; then
4087     check_type "sys/types.h sys/socket.h" socklen_t
4088     check_type netdb.h "struct addrinfo"
4089     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4090     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4091     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4092     check_type netinet/in.h "struct sockaddr_in6"
4093     check_type poll.h "struct pollfd"
4094     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4095     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4096     check_type netinet/sctp.h "struct sctp_event_subscribe"
4097     check_func getaddrinfo $network_extralibs
4098     check_func getservbyport $network_extralibs
4099     # Prefer arpa/inet.h over winsock2
4100     if check_header arpa/inet.h ; then
4101         check_func closesocket
4102     elif check_header winsock2.h ; then
4103         check_func_headers winsock2.h closesocket -lws2 &&
4104             network_extralibs="-lws2" ||
4105         { check_func_headers winsock2.h closesocket -lws2_32 &&
4106             network_extralibs="-lws2_32"; }
4107         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4108         check_type ws2tcpip.h socklen_t
4109         check_type ws2tcpip.h "struct addrinfo"
4110         check_type ws2tcpip.h "struct group_source_req"
4111         check_type ws2tcpip.h "struct ip_mreq_source"
4112         check_type ws2tcpip.h "struct ipv6_mreq"
4113         check_type winsock2.h "struct pollfd"
4114         check_type ws2tcpip.h "struct sockaddr_in6"
4115         check_type ws2tcpip.h "struct sockaddr_storage"
4116         check_struct winsock2.h "struct sockaddr" sa_len
4117     else
4118         disable network
4119     fi
4120 fi
4121
4122 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4123 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4124
4125 check_func  access
4126 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4127 check_func  fcntl
4128 check_func  fork
4129 check_func_headers stdlib.h getenv
4130 check_func  gethrtime
4131 check_func  getopt
4132 check_func  getrusage
4133 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4134 check_func  gettimeofday
4135 check_func  inet_aton $network_extralibs
4136 check_func  isatty
4137 check_func  localtime_r
4138 check_func  ${malloc_prefix}memalign            && enable memalign
4139 check_func  mkstemp
4140 check_func  mmap
4141 check_func  mprotect
4142 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4143 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4144 check_func  setrlimit
4145 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4146 check_func  strerror_r
4147 check_func  sched_getaffinity
4148 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4149 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4150 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4151 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4152 check_builtin sarestart signal.h "SA_RESTART"
4153 check_func  sysconf
4154 check_func  sysctl
4155 check_func  usleep
4156 check_func_headers conio.h kbhit
4157 check_func_headers windows.h PeekNamedPipe
4158 check_func_headers io.h setmode
4159 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4160 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4161 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4162 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4163 check_func_headers windows.h GetProcessAffinityMask
4164 check_func_headers windows.h GetProcessTimes
4165 check_func_headers windows.h GetSystemTimeAsFileTime
4166 check_func_headers windows.h MapViewOfFile
4167 check_func_headers windows.h SetConsoleTextAttribute
4168 check_func_headers windows.h Sleep
4169 check_func_headers windows.h VirtualAlloc
4170 check_func_headers glob.h glob
4171 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4172
4173 check_header cl/cl.h
4174 check_header direct.h
4175 check_header dlfcn.h
4176 check_header dxva.h
4177 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4178 check_header io.h
4179 check_header libcrystalhd/libcrystalhd_if.h
4180 check_header malloc.h
4181 check_header poll.h
4182 check_header sys/mman.h
4183 check_header sys/param.h
4184 check_header sys/resource.h
4185 check_header sys/select.h
4186 check_header sys/time.h
4187 check_header sys/un.h
4188 check_header termios.h
4189 check_header unistd.h
4190 check_header vdpau/vdpau.h
4191 check_header vdpau/vdpau_x11.h
4192 check_header VideoDecodeAcceleration/VDADecoder.h
4193 check_header windows.h
4194 check_header X11/extensions/XvMClib.h
4195 check_header asm/types.h
4196
4197 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4198 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4199
4200 if ! disabled w32threads && ! enabled pthreads; then
4201     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4202 fi
4203
4204 # check for some common methods of building with pthread support
4205 # do this before the optional library checks as some of them require pthreads
4206 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4207     enable pthreads
4208     if check_func pthread_create; then
4209         :
4210     elif check_func pthread_create -pthread; then
4211         add_cflags -pthread
4212         add_extralibs -pthread
4213     elif check_func pthread_create -pthreads; then
4214         add_cflags -pthreads
4215         add_extralibs -pthreads
4216     elif check_func pthread_create -lpthreadGC2; then
4217         add_extralibs -lpthreadGC2
4218     elif ! check_lib pthread.h pthread_create -lpthread; then
4219         disable pthreads
4220     fi
4221 fi
4222
4223 for thread in $THREADS_LIST; do
4224     if enabled $thread; then
4225         test -n "$thread_type" &&
4226             die "ERROR: Only one thread type must be selected." ||
4227             thread_type="$thread"
4228     fi
4229 done
4230
4231 if enabled pthreads; then
4232   check_func pthread_cancel
4233 fi
4234
4235 enabled sync_val_compare_and_swap && enable atomics_gcc
4236 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4237 enabled MemoryBarrier && enable atomics_win32
4238
4239 check_lib math.h sin -lm && LIBM="-lm"
4240 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4241
4242 atan2f_args=2
4243 ldexpf_args=2
4244 powf_args=2
4245
4246 for func in $MATH_FUNCS; do
4247     eval check_mathfunc $func \${${func}_args:-1}
4248 done
4249
4250 # these are off by default, so fail if requested and not available
4251 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4252                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4253                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4254 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4255 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4256 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4257 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4258 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4259 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4260 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4261 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4262 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4263                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4264                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4265 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4266 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4267 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4268 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4269 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4270 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4271 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4272 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4273                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4274                                done || die "ERROR: libgsm not found"; }
4275 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4276 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4277 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4278 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4279 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4280 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4281 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4282 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4283                                check_lib openjpeg.h opj_version -lopenjpeg ||
4284                                die "ERROR: libopenjpeg not found"; }
4285 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4286 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4287 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4288 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4289 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4290 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4291 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4292 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4293 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4294 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4295     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4296     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4297 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4298 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4299                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4300                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4301 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4302 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4303 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4304 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4305 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4306 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4307 enabled libvpx            && {
4308     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4309                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4310     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4311                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4312     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4313     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4314 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4315 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4316                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4317                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4318 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4319 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4320 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4321 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4322 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4323                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4324                                die "ERROR: openal not found"; } &&
4325                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4326                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4327 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4328                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4329                                die "ERROR: opencl not found"; } &&
4330                              { ! enabled_any w32threads os2threads ||
4331                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4332                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4333                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4334                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4335 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4336                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4337                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4338                                die "ERROR: openssl not found"; }
4339
4340 if enabled gnutls; then
4341     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4342     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4343 fi
4344
4345 # libdc1394 check
4346 if enabled libdc1394; then
4347     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4348         enable libdc1394_2; } ||
4349     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4350         enable libdc1394_1; } ||
4351     die "ERROR: No version of libdc1394 found "
4352 fi
4353
4354 SDL_CONFIG="${cross_prefix}sdl-config"
4355 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4356     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4357     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4358     enable sdl
4359 else
4360   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4361     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4362     sdl_libs=$("${SDL_CONFIG}" --libs)
4363     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4364     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4365     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4366     enable sdl
4367   fi
4368 fi
4369 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4370
4371 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4372 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4373 perl --version > /dev/null 2>&1 && enable perl || disable perl
4374 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4375 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4376
4377 check_header linux/fb.h
4378 check_header linux/videodev.h
4379 check_header linux/videodev2.h
4380 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4381
4382 check_header sys/videoio.h
4383
4384 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4385 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4386 # w32api 3.12 had it defined wrong
4387 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4388
4389 check_type "dshow.h" IBaseFilter
4390
4391 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4392 { check_header dev/bktr/ioctl_meteor.h &&
4393   check_header dev/bktr/ioctl_bt848.h; } ||
4394 { check_header machine/ioctl_meteor.h &&
4395   check_header machine/ioctl_bt848.h; } ||
4396 { check_header dev/video/meteor/ioctl_meteor.h &&
4397   check_header dev/video/bktr/ioctl_bt848.h; } ||
4398 check_header dev/ic/bt8xx.h
4399
4400 check_header sndio.h
4401 if check_struct sys/soundcard.h audio_buf_info bytes; then
4402     enable_safe sys/soundcard.h
4403 else
4404     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4405     #include <sys/soundcard.h>
4406     audio_buf_info abc;
4407 EOF
4408 fi
4409 check_header soundcard.h
4410
4411 enabled_any alsa_indev alsa_outdev &&
4412     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4413
4414 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4415     check_func jack_port_get_latency_range -ljack
4416
4417 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4418
4419 if enabled libcdio; then
4420     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4421     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4422     die "ERROR: libcdio-paranoia not found"
4423 fi
4424
4425 enabled x11grab                                           &&
4426 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4427 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4428 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4429
4430 enabled vaapi &&
4431     check_lib va/va.h vaInitialize -lva ||
4432     disable vaapi
4433
4434 enabled vdpau &&
4435     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4436     disable vdpau
4437
4438 # Funny iconv installations are not unusual, so check it after all flags have been set
4439 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4440
4441 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4442
4443 # add some useful compiler flags if supported
4444 check_cflags -Wdeclaration-after-statement
4445 check_cflags -Wall
4446 check_cflags -Wdisabled-optimization
4447 check_cflags -Wpointer-arith
4448 check_cflags -Wredundant-decls
4449 check_cflags -Wwrite-strings
4450 check_cflags -Wtype-limits
4451 check_cflags -Wundef
4452 check_cflags -Wmissing-prototypes
4453 check_cflags -Wno-pointer-to-int-cast
4454 check_cflags -Wstrict-prototypes
4455 enabled extra_warnings && check_cflags -Winline
4456
4457 check_disable_warning(){
4458     warning_flag=-W${1#-Wno-}
4459     test_cflags $warning_flag && add_cflags $1
4460 }
4461
4462 check_disable_warning -Wno-parentheses
4463 check_disable_warning -Wno-switch
4464 check_disable_warning -Wno-format-zero-length
4465 check_disable_warning -Wno-pointer-sign
4466
4467 # add some linker flags
4468 check_ldflags -Wl,--warn-common
4469 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4470 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4471
4472 enabled xmm_clobber_test &&
4473     check_ldflags -Wl,--wrap,avcodec_open2              \
4474                   -Wl,--wrap,avcodec_decode_audio4      \
4475                   -Wl,--wrap,avcodec_decode_video2      \
4476                   -Wl,--wrap,avcodec_decode_subtitle2   \
4477                   -Wl,--wrap,avcodec_encode_audio2      \
4478                   -Wl,--wrap,avcodec_encode_video       \
4479                   -Wl,--wrap,avcodec_encode_video2      \
4480                   -Wl,--wrap,avcodec_encode_subtitle    \
4481                   -Wl,--wrap,sws_scale ||
4482     disable xmm_clobber_test
4483
4484 echo "X{};" > $TMPV
4485 if test_ldflags -Wl,--version-script,$TMPV; then
4486     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4487     check_cc <<EOF && enable symver_asm_label
4488 void ff_foo(void) __asm__ ("av_foo@VERSION");
4489 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4490 EOF
4491     check_cc <<EOF && enable symver_gnu_asm
4492 __asm__(".symver ff_foo,av_foo@VERSION");
4493 void ff_foo(void) {}
4494 EOF
4495 fi
4496
4497 if [ -z "$optflags" ]; then
4498     if enabled small; then
4499         optflags=$cflags_size
4500     elif enabled optimizations; then
4501         optflags=$cflags_speed
4502     else
4503         optflags=$cflags_noopt
4504     fi
4505 fi
4506
4507 check_optflags(){
4508     check_cflags "$@"
4509     enabled lto && check_ldflags "$@"
4510 }
4511
4512
4513 if enabled lto; then
4514     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4515     check_cflags  -flto
4516     check_ldflags -flto $cpuflags
4517 fi
4518
4519 check_optflags $optflags
4520 check_optflags -fno-math-errno
4521 check_optflags -fno-signed-zeros
4522
4523 enabled ftrapv && check_cflags -ftrapv
4524
4525 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4526 int x;
4527 EOF
4528
4529
4530 if enabled icc; then
4531     # Just warnings, no remarks
4532     check_cflags -w1
4533     # -wd: Disable following warnings
4534     # 144, 167, 556: -Wno-pointer-sign
4535     # 188: enumerated type mixed with another type
4536     # 1292: attribute "foo" ignored
4537     # 1419: external declaration in primary source file
4538     # 10006: ignoring unknown option -fno-signed-zeros
4539     # 10148: ignoring unknown option -Wno-parentheses
4540     # 10156: ignoring option '-W'; no argument required
4541     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4542     # 11030: Warning unknown option --as-needed
4543     # 10156: ignoring option '-export'; no argument required
4544     check_ldflags -wd10156,11030
4545     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4546     enable ebp_available
4547     if enabled x86_32; then
4548         icc_version=$($cc -dumpversion)
4549         test ${icc_version%%.*} -ge 11 &&
4550             check_cflags -falign-stack=maintain-16-byte ||
4551             disable aligned_stack
4552     fi
4553 elif enabled ccc; then
4554     # disable some annoying warnings
4555     add_cflags -msg_disable bitnotint
4556     add_cflags -msg_disable mixfuncvoid
4557     add_cflags -msg_disable nonstandcast
4558     add_cflags -msg_disable unsupieee
4559 elif enabled gcc; then
4560     check_optflags -fno-tree-vectorize
4561     check_cflags -Werror=implicit-function-declaration
4562     check_cflags -Werror=missing-prototypes
4563     check_cflags -Werror=return-type
4564     check_cflags -Werror=vla
4565     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4566 elif enabled llvm_gcc; then
4567     check_cflags -mllvm -stack-alignment=16
4568 elif enabled clang; then
4569     check_cflags -mllvm -stack-alignment=16
4570     check_cflags -Qunused-arguments
4571     check_cflags -Werror=implicit-function-declaration
4572     check_cflags -Werror=missing-prototypes
4573     check_cflags -Werror=return-type
4574 elif enabled cparser; then
4575     add_cflags -Wno-missing-variable-declarations
4576     add_cflags -Wno-empty-statement
4577 elif enabled armcc; then
4578     # 2523: use of inline assembler is deprecated
4579     add_cflags -W${armcc_opt},--diag_suppress=2523
4580     add_cflags -W${armcc_opt},--diag_suppress=1207
4581     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4582     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4583     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4584     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4585 elif enabled tms470; then
4586     add_cflags -pds=824 -pds=837
4587 elif enabled pathscale; then
4588     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4589 elif enabled_any msvc icl; then
4590     enabled x86_32 && disable aligned_stack
4591     enabled_all x86_32 debug && add_cflags -Oy-
4592     enabled debug && add_ldflags -debug
4593     enable pragma_deprecated
4594     if enabled icl; then
4595         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4596         # (correctly) on icl 13.x.
4597         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4598             add_cflags -Qansi-alias
4599         # icl will pass the inline asm tests but inline asm is currently
4600         # not supported (build will fail)
4601         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4602         disable inline_asm
4603     fi
4604 fi
4605
4606 case $target_os in
4607     osf1)
4608         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4609     ;;
4610     plan9)
4611         add_cppflags -Dmain=plan9_main
4612     ;;
4613 esac
4614
4615 enable frame_thread_encoder
4616 enabled_any $THREADS_LIST      && enable threads
4617 enabled_any $ATOMICS_LIST      && enable atomics_native
4618
4619 enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
4620
4621 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4622
4623 check_deps $CONFIG_LIST       \
4624            $CONFIG_EXTRA      \
4625            $HAVE_LIST         \
4626            $ALL_COMPONENTS    \
4627
4628
4629 if test $target_os = "haiku"; then
4630     disable memalign
4631     disable posix_memalign
4632 fi
4633
4634 ! enabled_any memalign posix_memalign aligned_malloc &&
4635     enabled_any $need_memalign && enable memalign_hack
4636
4637 # add_dep lib dep
4638 # -> enable ${lib}_deps_${dep}
4639 # -> add $dep to ${lib}_deps only once
4640 add_dep() {
4641     lib=$1
4642     dep=$2
4643     enabled "${lib}_deps_${dep}" && return 0
4644     enable  "${lib}_deps_${dep}"
4645     prepend "${lib}_deps" $dep
4646 }
4647
4648 # merge deps lib components
4649 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4650 merge_deps() {
4651     lib=$1
4652     shift
4653     for comp in $*; do
4654         enabled $comp || continue
4655         eval "dep=\"\$${comp}_deps\""
4656         for d in $dep; do
4657             add_dep $lib $d
4658         done
4659     done
4660 }
4661
4662 merge_deps libavfilter $FILTER_LIST
4663
4664 echo "install prefix            $prefix"
4665 echo "source path               $source_path"
4666 echo "C compiler                $cc"
4667 echo "ARCH                      $arch ($cpu)"
4668 if test "$build_suffix" != ""; then
4669     echo "build suffix              $build_suffix"
4670 fi
4671 if test "$progs_suffix" != ""; then
4672     echo "progs suffix              $progs_suffix"
4673 fi
4674 if test "$extra_version" != ""; then
4675     echo "version string suffix     $extra_version"
4676 fi
4677 echo "big-endian                ${bigendian-no}"
4678 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4679 if enabled x86; then
4680     echo "${yasmexe}                      ${yasm-no}"
4681     echo "MMX enabled               ${mmx-no}"
4682     echo "MMXEXT enabled            ${mmxext-no}"
4683     echo "3DNow! enabled            ${amd3dnow-no}"
4684     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4685     echo "SSE enabled               ${sse-no}"
4686     echo "SSSE3 enabled             ${ssse3-no}"
4687     echo "AVX enabled               ${avx-no}"
4688     echo "FMA4 enabled              ${fma4-no}"
4689     echo "i686 features enabled     ${i686-no}"
4690     echo "CMOV is fast              ${fast_cmov-no}"
4691     echo "EBX available             ${ebx_available-no}"
4692     echo "EBP available             ${ebp_available-no}"
4693 fi
4694 if enabled arm; then
4695     echo "ARMv5TE enabled           ${armv5te-no}"
4696     echo "ARMv6 enabled             ${armv6-no}"
4697     echo "ARMv6T2 enabled           ${armv6t2-no}"
4698     echo "VFP enabled               ${vfp-no}"
4699     echo "NEON enabled              ${neon-no}"
4700     echo "THUMB enabled             ${thumb-no}"
4701 fi
4702 if enabled mips; then
4703     echo "MIPS FPU enabled          ${mipsfpu-no}"
4704     echo "MIPS32R2 enabled          ${mips32r2-no}"
4705     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4706     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4707 fi
4708 if enabled ppc; then
4709     echo "AltiVec enabled           ${altivec-no}"
4710     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4711     echo "dcbzl available           ${dcbzl-no}"
4712 fi
4713 if enabled sparc; then
4714     echo "VIS enabled               ${vis-no}"
4715 fi
4716 echo "debug symbols             ${debug-no}"
4717 echo "strip symbols             ${stripping-no}"
4718 echo "optimize for size         ${small-no}"
4719 echo "optimizations             ${optimizations-no}"
4720 echo "static                    ${static-no}"
4721 echo "shared                    ${shared-no}"
4722 echo "postprocessing support    ${postproc-no}"
4723 echo "new filter support        ${avfilter-no}"
4724 echo "network support           ${network-no}"
4725 echo "threading support         ${thread_type-no}"
4726 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4727 echo "SDL support               ${sdl-no}"
4728 echo "opencl enabled            ${opencl-no}"
4729 echo "libzvbi enabled           ${libzvbi-no}"
4730 echo "texi2html enabled         ${texi2html-no}"
4731 echo "perl enabled              ${perl-no}"
4732 echo "pod2man enabled           ${pod2man-no}"
4733 echo "makeinfo enabled          ${makeinfo-no}"
4734 test -n "$random_seed" &&
4735     echo "random seed               ${random_seed}"
4736 echo
4737
4738 echo "External libraries:"
4739 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4740 echo
4741
4742 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4743     echo "Enabled ${type}s:"
4744     eval list=\$$(toupper $type)_LIST
4745     print_enabled '_*' $list | print_3_columns
4746     echo
4747 done
4748
4749 license="LGPL version 2.1 or later"
4750 if enabled nonfree; then
4751     license="nonfree and unredistributable"
4752 elif enabled gplv3; then
4753     license="GPL version 3 or later"
4754 elif enabled lgplv3; then
4755     license="LGPL version 3 or later"
4756 elif enabled gpl; then
4757     license="GPL version 2 or later"
4758 fi
4759
4760 echo "License: $license"
4761
4762 echo "Creating config.mak, config.h, and doc/config.texi..."
4763
4764 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4765
4766 enabled stripping || strip="echo skipping strip"
4767
4768 config_files="$TMPH config.mak doc/config.texi"
4769
4770 cat > config.mak <<EOF
4771 # Automatically generated by configure - do not modify!
4772 ifndef FFMPEG_CONFIG_MAK
4773 FFMPEG_CONFIG_MAK=1
4774 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4775 prefix=$prefix
4776 LIBDIR=\$(DESTDIR)$libdir
4777 SHLIBDIR=\$(DESTDIR)$shlibdir
4778 INCDIR=\$(DESTDIR)$incdir
4779 BINDIR=\$(DESTDIR)$bindir
4780 DATADIR=\$(DESTDIR)$datadir
4781 DOCDIR=\$(DESTDIR)$docdir
4782 MANDIR=\$(DESTDIR)$mandir
4783 SRC_PATH=$source_path
4784 ifndef MAIN_MAKEFILE
4785 SRC_PATH:=\$(SRC_PATH:.%=..%)
4786 endif
4787 CC_IDENT=$cc_ident
4788 ARCH=$arch
4789 CC=$cc
4790 CXX=$cxx
4791 AS=$as
4792 LD=$ld
4793 DEPCC=$dep_cc
4794 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4795 DEPAS=$as
4796 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4797 YASM=$yasmexe
4798 DEPYASM=$yasmexe
4799 AR=$ar
4800 ARFLAGS=$arflags
4801 AR_O=$ar_o
4802 RANLIB=$ranlib
4803 STRIP=$strip
4804 CP=cp -p
4805 LN_S=$ln_s
4806 CPPFLAGS=$CPPFLAGS
4807 CFLAGS=$CFLAGS
4808 CXXFLAGS=$CXXFLAGS
4809 ASFLAGS=$ASFLAGS
481