avformat/utils: avformat_find_stream_info fix a crash in case of oom
[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   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
106   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-ffmpeg         disable ffmpeg build
111   --disable-ffplay         disable ffplay build
112   --disable-ffprobe        disable ffprobe build
113   --disable-ffserver       disable ffserver build
114
115 Documentation options:
116   --disable-doc            do not build documentation
117   --disable-htmlpages      do not build HTML documentation pages
118   --disable-manpages       do not build man documentation pages
119   --disable-podpages       do not build POD documentation pages
120   --disable-txtpages       do not build text documentation pages
121
122 Component options:
123   --disable-avdevice       disable libavdevice build
124   --disable-avcodec        disable libavcodec build
125   --disable-avformat       disable libavformat build
126   --disable-avutil         disable libavutil build
127   --disable-swresample     disable libswresample build
128   --disable-swscale        disable libswscale build
129   --disable-postproc       disable libpostproc build
130   --disable-avfilter       disable libavfilter build
131   --enable-avresample      enable libavresample build [no]
132   --disable-pthreads       disable pthreads [auto]
133   --disable-w32threads     disable Win32 threads [auto]
134   --disable-os2threads     disable OS/2 threads [auto]
135   --disable-network        disable network support [no]
136   --disable-dct            disable DCT code
137   --disable-dwt            disable DWT code
138   --disable-error-resilience disable error resilience code
139   --disable-lsp            disable LSP code
140   --disable-lzo            disable LZO decoder code
141   --disable-mdct           disable MDCT code
142   --disable-rdft           disable RDFT code
143   --disable-fft            disable FFT code
144
145 Hardware accelerators:
146   --disable-dxva2          disable DXVA2 code [autodetect]
147   --disable-vaapi          disable VAAPI code [autodetect]
148   --enable-vda             enable VDA code
149   --disable-vdpau          disable VDPAU code [autodetect]
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189   --enable-avisynth        enable reading of AVISynth script files [no]
190   --disable-bzlib          disable bzlib [autodetect]
191   --enable-fontconfig      enable fontconfig
192   --enable-frei0r          enable frei0r video filtering
193   --enable-gnutls          enable gnutls [no]
194   --disable-iconv          disable iconv [autodetect]
195   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
196   --enable-libass          enable libass subtitles rendering [no]
197   --enable-libbluray       enable BluRay reading using libbluray [no]
198   --enable-libcaca         enable textual display using libcaca
199   --enable-libcelt         enable CELT decoding via libcelt [no]
200   --enable-libcdio         enable audio CD grabbing with libcdio
201   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
202                            and libraw1394 [no]
203   --enable-libfaac         enable AAC encoding via libfaac [no]
204   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
205   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
206   --enable-libfreetype     enable libfreetype [no]
207   --enable-libgme          enable Game Music Emu via libgme [no]
208   --enable-libgsm          enable GSM de/encoding via libgsm [no]
209   --enable-libiec61883     enable iec61883 via libiec61883 [no]
210   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
211   --enable-libmodplug      enable ModPlug via libmodplug [no]
212   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
213   --enable-libnut          enable NUT (de)muxing via libnut,
214                            native (de)muxer exists [no]
215   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
216   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
217   --enable-libopencv       enable video filtering via libopencv [no]
218   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
219   --enable-libopus         enable Opus decoding via libopus [no]
220   --enable-libpulse        enable Pulseaudio input via libpulse [no]
221   --enable-libquvi         enable quvi input via libquvi [no]
222   --enable-librtmp         enable RTMP[E] support via librtmp [no]
223   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
224   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
225   --enable-libsoxr         enable Include libsoxr resampling [no]
226   --enable-libspeex        enable Speex de/encoding via libspeex [no]
227   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
228   --enable-libtheora       enable Theora encoding via libtheora [no]
229   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
230   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
231   --enable-libv4l2         enable libv4l2/v4l-utils [no]
232   --enable-libvidstab      enable video stabilization using vid.stab [no]
233   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
234   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
235   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
236                            native implementation exists [no]
237   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
238   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
239   --enable-libx264         enable H.264 encoding via x264 [no]
240   --enable-libxavs         enable AVS encoding via xavs [no]
241   --enable-libxvid         enable Xvid encoding via xvidcore,
242                            native MPEG-4/Xvid encoder exists [no]
243   --enable-libzmq          enable message passing via libzmq [no]
244   --enable-openal          enable OpenAL 1.1 capture support [no]
245   --enable-opencl          enable OpenCL code
246   --enable-openssl         enable openssl [no]
247   --enable-x11grab         enable X11 grabbing [no]
248   --disable-zlib           disable zlib [autodetect]
249
250 Advanced options (experts only):
251   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
252   --enable-cross-compile   assume a cross-compiler is used
253   --sysroot=PATH           root of cross-build tree
254   --sysinclude=PATH        location of cross-build system headers
255   --target-os=OS           compiler targets OS [$target_os]
256   --target-exec=CMD        command to run executables on target
257   --target-path=DIR        path to view of build directory on target
258   --target-samples=DIR     path to samples directory on target
259   --toolchain=NAME         set tool defaults according to NAME
260   --nm=NM                  use nm tool NM [$nm_default]
261   --ar=AR                  use archive tool AR [$ar_default]
262   --as=AS                  use assembler AS [$as_default]
263   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
264   --cc=CC                  use C compiler CC [$cc_default]
265   --cxx=CXX                use C compiler CXX [$cxx_default]
266   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
267   --ld=LD                  use linker LD [$ld_default]
268   --host-cc=HOSTCC         use host C compiler HOSTCC
269   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
270   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
271   --host-ld=HOSTLD         use host linker HOSTLD
272   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
273   --host-libs=HLIBS        use libs HLIBS when linking for host
274   --host-os=OS             compiler host OS [$target_os]
275   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
276   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
277   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
278   --extra-libs=ELIBS       add ELIBS [$ELIBS]
279   --extra-version=STRING   version string suffix []
280   --optflags=OPTFLAGS      override optimization-related compiler flags
281   --build-suffix=SUFFIX    library name suffix []
282   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
283   --progs-suffix=SUFFIX    program name suffix []
284   --arch=ARCH              select architecture [$arch]
285   --cpu=CPU                select the minimum required CPU (affects
286                            instruction selection, may crash on older CPUs)
287   --enable-pic             build position-independent code
288   --enable-sram            allow use of on-chip SRAM
289   --enable-thumb           compile for Thumb instruction set
290   --disable-symver         disable symbol versioning
291   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
292   --disable-safe-bitstream-reader
293                            disable buffer boundary checking in bitreaders
294                            (faster, but may crash)
295   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
296   --enable-lto             use link-time optimization
297
298 Optimization options (experts only):
299   --disable-asm            disable all assembler optimizations
300   --disable-altivec        disable AltiVec optimizations
301   --disable-amd3dnow       disable 3DNow! optimizations
302   --disable-amd3dnowext    disable 3DNow! extended optimizations
303   --disable-mmx            disable MMX optimizations
304   --disable-mmxext         disable MMXEXT optimizations
305   --disable-sse            disable SSE optimizations
306   --disable-sse2           disable SSE2 optimizations
307   --disable-sse3           disable SSE3 optimizations
308   --disable-ssse3          disable SSSE3 optimizations
309   --disable-sse4           disable SSE4 optimizations
310   --disable-sse42          disable SSE4.2 optimizations
311   --disable-avx            disable AVX optimizations
312   --disable-fma4           disable FMA4 optimizations
313   --disable-armv5te        disable armv5te optimizations
314   --disable-armv6          disable armv6 optimizations
315   --disable-armv6t2        disable armv6t2 optimizations
316   --disable-vfp            disable VFP optimizations
317   --disable-neon           disable NEON optimizations
318   --disable-vis            disable VIS optimizations
319   --disable-inline-asm     disable use of inline assembler
320   --disable-yasm           disable use of yasm assembler
321   --disable-mips32r2       disable MIPS32R2 optimizations
322   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
323   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
324   --disable-mipsfpu        disable floating point MIPS optimizations
325   --disable-fast-unaligned consider unaligned accesses slow
326
327 Developer options (useful when working on FFmpeg itself):
328   --disable-debug          disable debugging symbols
329   --enable-debug=LEVEL     set the debug level [$debuglevel]
330   --disable-optimizations  disable compiler optimizations
331   --enable-extra-warnings  enable more compiler warnings
332   --disable-stripping      disable stripping of executables and shared libraries
333   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
334                            2 causes a slowdown at runtime.
335   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
336   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
337                            leaks and errors, using the specified valgrind binary.
338                            Cannot be combined with --target-exec
339   --enable-ftrapv          Trap arithmetic overflows
340   --samples=PATH           location of test samples for FATE, if not set use
341                            \$FATE_SAMPLES at make invocation time.
342   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
343                            should be used only for debugging purposes)
344   --enable-random          randomly enable/disable components
345   --disable-random
346   --enable-random=LIST     randomly enable/disable specific components or
347   --disable-random=LIST    component groups. LIST is a comma-separated list
348                            of NAME[:PROB] entries where NAME is a component
349                            (group) and PROB the probability associated with
350                            NAME (default 0.5).
351   --random-seed=VALUE      seed value for --enable/disable-random
352
353 NOTE: Object files are built at the place where configure is launched.
354 EOF
355   exit 0
356 }
357
358 quotes='""'
359
360 log(){
361     echo "$@" >> $logfile
362 }
363
364 log_file(){
365     log BEGIN $1
366     pr -n -t $1 >> $logfile
367     log END $1
368 }
369
370 echolog(){
371     log "$@"
372     echo "$@"
373 }
374
375 warn(){
376     log "WARNING: $*"
377     WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381     echolog "$@"
382     cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git.  If the latest version fails, report the problem to the
386 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
387 EOF
388     if disabled logging; then
389         cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393     else
394         cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398     fi
399     exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412     echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416     v=$(echo "$1" | sed "s/'/'\\\\''/g")
417     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418     echo "$v"
419 }
420
421 cleanws(){
422     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
423 }
424
425 filter(){
426     pat=$1
427     shift
428     for v; do
429         eval "case $v in $pat) echo $v ;; esac"
430     done
431 }
432
433 filter_out(){
434     pat=$1
435     shift
436     for v; do
437         eval "case $v in $pat) ;; *) echo $v ;; esac"
438     done
439 }
440
441 map(){
442     m=$1
443     shift
444     for v; do eval $m; done
445 }
446
447 add_suffix(){
448     suffix=$1
449     shift
450     for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454     value=$1
455     shift
456     for var in $*; do
457         eval $var=$value
458     done
459 }
460
461 set_weak(){
462     value=$1
463     shift
464     for var; do
465         eval : \${$var:=$value}
466     done
467 }
468
469 sanitize_var_name(){
470     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_safe(){
474     var=$1
475     shift
476     eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_safe(){
480     eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484     for pvar in $*; do
485         eval level=\${${pvar}_level:=0}
486         eval ${pvar}_${level}="\$$pvar"
487         eval ${pvar}_level=$(($level+1))
488     done
489 }
490
491 popvar(){
492     for pvar in $*; do
493         eval level=\${${pvar}_level:-0}
494         test $level = 0 && continue
495         eval level=$(($level-1))
496         eval $pvar="\${${pvar}_${level}}"
497         eval ${pvar}_level=$level
498         eval unset ${pvar}_${level}
499     done
500 }
501
502 enable(){
503     set_all yes $*
504 }
505
506 disable(){
507     set_all no $*
508 }
509
510 enable_weak(){
511     set_weak yes $*
512 }
513
514 disable_weak(){
515     set_weak no $*
516 }
517
518 enable_safe(){
519     for var; do
520         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521     done
522 }
523
524 disable_safe(){
525     for var; do
526         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527     done
528 }
529
530 do_enable_deep(){
531     for var; do
532         enabled $var && continue
533         eval sel="\$${var}_select"
534         eval sgs="\$${var}_suggest"
535         pushvar var sgs
536         enable_deep $sel
537         popvar sgs
538         enable_deep_weak $sgs
539         popvar var
540     done
541 }
542
543 enable_deep(){
544     do_enable_deep $*
545     enable $*
546 }
547
548 enable_deep_weak(){
549     for var; do
550         disabled $var && continue
551         pushvar var
552         do_enable_deep $var
553         popvar var
554         enable_weak $var
555     done
556 }
557
558 enabled(){
559     test "${1#!}" = "$1" && op== || op=!=
560     eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564     test "${1#!}" = "$1" && op== || op=!=
565     eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569     for opt; do
570         enabled $opt || return 1
571     done
572 }
573
574 disabled_all(){
575     for opt; do
576         disabled $opt || return 1
577     done
578 }
579
580 enabled_any(){
581     for opt; do
582         enabled $opt && return 0
583     done
584 }
585
586 disabled_any(){
587     for opt; do
588         disabled $opt && return 0
589     done
590     return 1
591 }
592
593 set_default(){
594     for opt; do
595         eval : \${$opt:=\$${opt}_default}
596     done
597 }
598
599 is_in(){
600     value=$1
601     shift
602     for var in $*; do
603         [ $var = $value ] && return 0
604     done
605     return 1
606 }
607
608 do_check_deps(){
609     for cfg; do
610         cfg="${cfg#!}"
611         enabled ${cfg}_checking && die "Circular dependency for $cfg."
612         disabled ${cfg}_checking && continue
613         enable ${cfg}_checking
614         append allopts $cfg
615
616         eval dep_all="\$${cfg}_deps"
617         eval dep_any="\$${cfg}_deps_any"
618         eval dep_sel="\$${cfg}_select"
619         eval dep_sgs="\$${cfg}_suggest"
620         eval dep_ifa="\$${cfg}_if"
621         eval dep_ifn="\$${cfg}_if_any"
622
623         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626
627         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629         enabled_all  $dep_all || disable $cfg
630         enabled_any  $dep_any || disable $cfg
631         disabled_any $dep_sel && disable $cfg
632
633         if enabled $cfg; then
634             enable_deep $dep_sel
635             enable_deep_weak $dep_sgs
636         fi
637
638         disable ${cfg}_checking
639     done
640 }
641
642 check_deps(){
643     unset allopts
644
645     do_check_deps "$@"
646
647     for cfg in $allopts; do
648         enabled $cfg || continue
649         eval dep_extralibs="\$${cfg}_extralibs"
650         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 } else if (file ~ /\\.texi\$/) {
675                     pre = -v ? \"\" : \"@c \";
676                     yesno = \$2;
677                     c2 = tolower(c);
678                     gsub(/_/, \"-\", c2);
679                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
680                 }
681             }
682         }"
683 }
684
685 print_enabled(){
686     suf=$1
687     shift
688     for v; do
689         enabled $v && printf "%s\n" ${v%$suf};
690     done
691 }
692
693 append(){
694     var=$1
695     shift
696     eval "$var=\"\$$var $*\""
697 }
698
699 prepend(){
700     var=$1
701     shift
702     eval "$var=\"$* \$$var\""
703 }
704
705 add_cppflags(){
706     append CPPFLAGS "$@"
707 }
708
709 add_cflags(){
710     append CFLAGS $($cflags_filter "$@")
711 }
712
713 add_cxxflags(){
714     append CXXFLAGS $($cflags_filter "$@")
715 }
716
717 add_asflags(){
718     append ASFLAGS $($asflags_filter "$@")
719 }
720
721 add_ldflags(){
722     append LDFLAGS $($ldflags_filter "$@")
723 }
724
725 add_extralibs(){
726     prepend extralibs $($ldflags_filter "$@")
727 }
728
729 add_host_cppflags(){
730     append host_cppflags "$@"
731 }
732
733 add_host_cflags(){
734     append host_cflags $($host_cflags_filter "$@")
735 }
736
737 add_host_ldflags(){
738     append host_ldflags $($host_ldflags_filter "$@")
739 }
740
741 add_compat(){
742     append compat_objs $1
743     shift
744     map 'add_cppflags -D$v' "$@"
745 }
746
747 check_cmd(){
748     log "$@"
749     "$@" >> $logfile 2>&1
750 }
751
752 cc_o(){
753     eval printf '%s\\n' $CC_O
754 }
755
756 cc_e(){
757     eval printf '%s\\n' $CC_E
758 }
759
760 check_cc(){
761     log check_cc "$@"
762     cat > $TMPC
763     log_file $TMPC
764     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
765 }
766
767 check_cxx(){
768     log check_cxx "$@"
769     cat > $TMPCPP
770     log_file $TMPCPP
771     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
772 }
773
774 check_cpp(){
775     log check_cpp "$@"
776     cat > $TMPC
777     log_file $TMPC
778     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
779 }
780
781 as_o(){
782     eval printf '%s\\n' $AS_O
783 }
784
785 check_as(){
786     log check_as "$@"
787     cat > $TMPS
788     log_file $TMPS
789     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
790 }
791
792 check_inline_asm(){
793     log check_inline_asm "$@"
794     name="$1"
795     code="$2"
796     shift 2
797     disable $name
798     check_cc "$@" <<EOF && enable $name
799 void foo(void){ __asm__ volatile($code); }
800 EOF
801 }
802
803 check_insn(){
804     log check_insn "$@"
805     check_inline_asm ${1}_inline "\"$2\""
806     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
807 }
808
809 check_yasm(){
810     log check_yasm "$@"
811     echo "$1" > $TMPS
812     log_file $TMPS
813     shift 1
814     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
815 }
816
817 ld_o(){
818     eval printf '%s\\n' $LD_O
819 }
820
821 check_ld(){
822     log check_ld "$@"
823     type=$1
824     shift 1
825     flags=$(filter_out '-l*|*.so' $@)
826     libs=$(filter '-l*|*.so' $@)
827     check_$type $($cflags_filter $flags) || return
828     flags=$($ldflags_filter $flags)
829     libs=$($ldflags_filter $libs)
830     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
831 }
832
833 check_code(){
834     log check_code "$@"
835     check=$1
836     headers=$2
837     code=$3
838     shift 3
839     {
840         for hdr in $headers; do
841             echo "#include <$hdr>"
842         done
843         echo "int main(void) { $code; return 0; }"
844     } | check_$check "$@"
845 }
846
847 check_cppflags(){
848     log check_cppflags "$@"
849     check_cc "$@" <<EOF && append CPPFLAGS "$@"
850 int x;
851 EOF
852 }
853
854 check_cflags(){
855     log check_cflags "$@"
856     set -- $($cflags_filter "$@")
857     check_cc "$@" <<EOF && append CFLAGS "$@"
858 int x;
859 EOF
860 }
861
862 check_cxxflags(){
863     log check_cxxflags "$@"
864     set -- $($cflags_filter "$@")
865     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
866 int x;
867 EOF
868 }
869
870 test_ldflags(){
871     log test_ldflags "$@"
872     check_ld "cc" "$@" <<EOF
873 int main(void){ return 0; }
874 EOF
875 }
876
877 check_ldflags(){
878     log check_ldflags "$@"
879     test_ldflags "$@" && add_ldflags "$@"
880 }
881
882 check_header(){
883     log check_header "$@"
884     header=$1
885     shift
886     disable_safe $header
887     check_cpp "$@" <<EOF && enable_safe $header
888 #include <$header>
889 int x;
890 EOF
891 }
892
893 check_func(){
894     log check_func "$@"
895     func=$1
896     shift
897     disable $func
898     check_ld "cc" "$@" <<EOF && enable $func
899 extern int $func();
900 int main(void){ $func(); }
901 EOF
902 }
903
904 check_mathfunc(){
905     log check_mathfunc "$@"
906     func=$1
907     narg=$2
908     shift 2
909     test $narg = 2 && args="f, g" || args="f"
910     disable $func
911     check_ld "cc" "$@" <<EOF && enable $func
912 #include <math.h>
913 float foo(float f, float g) { return $func($args); }
914 int main(void){ return (int) foo; }
915 EOF
916 }
917
918 check_func_headers(){
919     log check_func_headers "$@"
920     headers=$1
921     funcs=$2
922     shift 2
923     {
924         for hdr in $headers; do
925             echo "#include <$hdr>"
926         done
927         for func in $funcs; do
928             echo "long check_$func(void) { return (long) $func; }"
929         done
930         echo "int main(void) { return 0; }"
931     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
932 }
933
934 check_class_headers_cpp(){
935     log check_class_headers_cpp "$@"
936     headers=$1
937     classes=$2
938     shift 2
939     {
940         for hdr in $headers; do
941             echo "#include <$hdr>"
942         done
943         echo "int main(void) { "
944         i=1
945         for class in $classes; do
946             echo "$class obj$i;"
947             i=$(expr $i + 1)
948         done
949         echo "return 0; }"
950     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
951 }
952
953 check_cpp_condition(){
954     log check_cpp_condition "$@"
955     header=$1
956     condition=$2
957     shift 2
958     check_cpp "$@" <<EOF
959 #include <$header>
960 #if !($condition)
961 #error "unsatisfied condition: $condition"
962 #endif
963 EOF
964 }
965
966 check_lib(){
967     log check_lib "$@"
968     header="$1"
969     func="$2"
970     shift 2
971     check_header $header && check_func $func "$@" && add_extralibs "$@"
972 }
973
974 check_lib2(){
975     log check_lib2 "$@"
976     headers="$1"
977     funcs="$2"
978     shift 2
979     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
980 }
981
982 check_lib_cpp(){
983     log check_lib_cpp "$@"
984     headers="$1"
985     classes="$2"
986     shift 2
987     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
988 }
989
990 check_pkg_config(){
991     log check_pkg_config "$@"
992     pkg="$1"
993     headers="$2"
994     funcs="$3"
995     shift 3
996     $pkg_config --exists $pkg 2>/dev/null || return
997     pkg_cflags=$($pkg_config --cflags $pkg)
998     pkg_libs=$($pkg_config --libs $pkg)
999     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1000         set_safe ${pkg}_cflags $pkg_cflags   &&
1001         set_safe ${pkg}_libs   $pkg_libs
1002 }
1003
1004 check_exec(){
1005     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1006 }
1007
1008 check_exec_crash(){
1009     code=$(cat)
1010
1011     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1012     # are safe but may not be available everywhere.  Thus we use
1013     # raise(SIGTERM) instead.  The check is run in a subshell so we
1014     # can redirect the "Terminated" message from the shell.  SIGBUS
1015     # is not defined by standard C so it is used conditionally.
1016
1017     (check_exec "$@") >> $logfile 2>&1 <<EOF
1018 #include <signal.h>
1019 static void sighandler(int sig){
1020     raise(SIGTERM);
1021 }
1022 int foo(void){
1023     $code
1024 }
1025 int (*func_ptr)(void) = foo;
1026 int main(void){
1027     signal(SIGILL, sighandler);
1028     signal(SIGFPE, sighandler);
1029     signal(SIGSEGV, sighandler);
1030 #ifdef SIGBUS
1031     signal(SIGBUS, sighandler);
1032 #endif
1033     return func_ptr();
1034 }
1035 EOF
1036 }
1037
1038 check_type(){
1039     log check_type "$@"
1040     headers=$1
1041     type=$2
1042     shift 2
1043     disable_safe "$type"
1044     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1045 }
1046
1047 check_struct(){
1048     log check_struct "$@"
1049     headers=$1
1050     struct=$2
1051     member=$3
1052     shift 3
1053     disable_safe "${struct}_${member}"
1054     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1055         enable_safe "${struct}_${member}"
1056 }
1057
1058 check_builtin(){
1059     log check_builtin "$@"
1060     name=$1
1061     headers=$2
1062     builtin=$3
1063     shift 3
1064     disable "$name"
1065     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1066 }
1067
1068 require(){
1069     name="$1"
1070     header="$2"
1071     func="$3"
1072     shift 3
1073     check_lib $header $func "$@" || die "ERROR: $name not found"
1074 }
1075
1076 require2(){
1077     name="$1"
1078     headers="$2"
1079     func="$3"
1080     shift 3
1081     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1082 }
1083
1084 require_cpp(){
1085     name="$1"
1086     headers="$2"
1087     classes="$3"
1088     shift 3
1089     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1090 }
1091
1092 require_pkg_config(){
1093     pkg="$1"
1094     check_pkg_config "$@" || die "ERROR: $pkg not found"
1095     add_cflags    $(get_safe ${pkg}_cflags)
1096     add_extralibs $(get_safe ${pkg}_libs)
1097 }
1098
1099 hostcc_o(){
1100     eval printf '%s\\n' $HOSTCC_O
1101 }
1102
1103 check_host_cc(){
1104     log check_host_cc "$@"
1105     cat > $TMPC
1106     log_file $TMPC
1107     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1108 }
1109
1110 check_host_cppflags(){
1111     log check_host_cppflags "$@"
1112     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1113 int x;
1114 EOF
1115 }
1116
1117 check_host_cflags(){
1118     log check_host_cflags "$@"
1119     set -- $($host_cflags_filter "$@")
1120     check_host_cc "$@" <<EOF && append host_cflags "$@"
1121 int x;
1122 EOF
1123 }
1124
1125 apply(){
1126     file=$1
1127     shift
1128     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1129 }
1130
1131 cp_if_changed(){
1132     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1133     mkdir -p "$(dirname $2)"
1134     $cp_f "$1" "$2"
1135 }
1136
1137 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1138 # system-dependent things.
1139
1140 COMPONENT_LIST="
1141     bsfs
1142     decoders
1143     demuxers
1144     encoders
1145     filters
1146     hwaccels
1147     indevs
1148     muxers
1149     outdevs
1150     parsers
1151     protocols
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155     avisynth
1156     bzlib
1157     crystalhd
1158     fontconfig
1159     frei0r
1160     gnutls
1161     iconv
1162     libaacplus
1163     libass
1164     libbluray
1165     libcaca
1166     libcdio
1167     libcelt
1168     libdc1394
1169     libfaac
1170     libfdk_aac
1171     libflite
1172     libfreetype
1173     libgme
1174     libgsm
1175     libiec61883
1176     libilbc
1177     libmodplug
1178     libmp3lame
1179     libnut
1180     libopencore_amrnb
1181     libopencore_amrwb
1182     libopencv
1183     libopenjpeg
1184     libopus
1185     libpulse
1186     libquvi
1187     librtmp
1188     libschroedinger
1189     libshine
1190     libsoxr
1191     libspeex
1192     libstagefright_h264
1193     libtheora
1194     libtwolame
1195     libutvideo
1196     libv4l2
1197     libvidstab
1198     libvo_aacenc
1199     libvo_amrwbenc
1200     libvorbis
1201     libvpx
1202     libwavpack
1203     libx264
1204     libxavs
1205     libxvid
1206     libzmq
1207     openal
1208     opencl
1209     openssl
1210     x11grab
1211     zlib
1212 "
1213
1214 DOCUMENT_LIST="
1215     doc
1216     htmlpages
1217     manpages
1218     podpages
1219     txtpages
1220 "
1221
1222 HWACCEL_LIST="
1223     dxva2
1224     vaapi
1225     vda
1226     vdpau
1227 "
1228
1229 LIBRARY_LIST="
1230     avcodec
1231     avdevice
1232     avfilter
1233     avformat
1234     avresample
1235     avutil
1236     postproc
1237     swresample
1238     swscale
1239 "
1240
1241 PROGRAM_LIST="
1242     ffplay
1243     ffprobe
1244     ffserver
1245     ffmpeg
1246 "
1247
1248 CONFIG_LIST="
1249     $COMPONENT_LIST
1250     $DOCUMENT_LIST
1251     $EXTERNAL_LIBRARY_LIST
1252     $HWACCEL_LIST
1253     $LIBRARY_LIST
1254     $PROGRAM_LIST
1255     dct
1256     dwt
1257     error_resilience
1258     fast_unaligned
1259     fft
1260     ftrapv
1261     gpl
1262     gray
1263     hardcoded_tables
1264     incompatible_libav_abi
1265     incompatible_fork_abi
1266     lsp
1267     lzo
1268     mdct
1269     memalign_hack
1270     memory_poisoning
1271     network
1272     nonfree
1273     pic
1274     rdft
1275     runtime_cpudetect
1276     safe_bitstream_reader
1277     shared
1278     small
1279     sram
1280     static
1281     swscale_alpha
1282     thumb
1283     version3
1284     xmm_clobber_test
1285 "
1286
1287 THREADS_LIST='
1288     pthreads
1289     w32threads
1290     os2threads
1291 '
1292
1293 ATOMICS_LIST='
1294     atomics_gcc
1295     atomics_suncc
1296     atomics_win32
1297 '
1298
1299 ARCH_LIST='
1300     aarch64
1301     alpha
1302     arm
1303     avr32
1304     avr32_ap
1305     avr32_uc
1306     bfin
1307     ia64
1308     m68k
1309     mips
1310     mips64
1311     parisc
1312     ppc
1313     ppc64
1314     s390
1315     sh4
1316     sparc
1317     sparc64
1318     tilegx
1319     tilepro
1320     tomi
1321     x86
1322     x86_32
1323     x86_64
1324 '
1325
1326 ARCH_EXT_LIST_ARM='
1327     armv5te
1328     armv6
1329     armv6t2
1330     neon
1331     vfp
1332     vfpv3
1333 '
1334
1335 ARCH_EXT_LIST_X86='
1336     amd3dnow
1337     amd3dnowext
1338     avx
1339     fma4
1340     mmx
1341     mmxext
1342     sse
1343     sse2
1344     sse3
1345     sse4
1346     sse42
1347     ssse3
1348 '
1349
1350 ARCH_EXT_LIST="
1351     $ARCH_EXT_LIST_ARM
1352     $ARCH_EXT_LIST_X86
1353     altivec
1354     ppc4xx
1355     vis
1356     mipsfpu
1357     mips32r2
1358     mipsdspr1
1359     mipsdspr2
1360 "
1361
1362 HAVE_LIST_CMDLINE='
1363     inline_asm
1364     symver
1365     yasm
1366 '
1367
1368 HAVE_LIST_PUB='
1369     bigendian
1370     fast_unaligned
1371     incompatible_libav_abi
1372     incompatible_fork_abi
1373 '
1374
1375 MATH_FUNCS="
1376     atanf
1377     atan2f
1378     cbrt
1379     cbrtf
1380     cosf
1381     exp2
1382     exp2f
1383     expf
1384     isinf
1385     isnan
1386     ldexpf
1387     llrint
1388     llrintf
1389     log2
1390     log2f
1391     log10f
1392     lrint
1393     lrintf
1394     powf
1395     rint
1396     round
1397     roundf
1398     sinf
1399     trunc
1400     truncf
1401 "
1402
1403 HAVE_LIST="
1404     $ARCH_EXT_LIST
1405     $(add_suffix _external $ARCH_EXT_LIST)
1406     $(add_suffix _inline   $ARCH_EXT_LIST)
1407     $HAVE_LIST_CMDLINE
1408     $HAVE_LIST_PUB
1409     $THREADS_LIST
1410     $ATOMICS_LIST
1411     $MATH_FUNCS
1412     access
1413     aligned_malloc
1414     aligned_stack
1415     alsa_asoundlib_h
1416     altivec_h
1417     arpa_inet_h
1418     asm_mod_q
1419     asm_mod_y
1420     asm_types_h
1421     atomic_cas_ptr
1422     atomics_native
1423     attribute_may_alias
1424     attribute_packed
1425     cdio_paranoia_h
1426     cdio_paranoia_paranoia_h
1427     CL_cl_h
1428     clock_gettime
1429     closesocket
1430     CommandLineToArgvW
1431     cpunop
1432     CryptGenRandom
1433     dcbzl
1434     dev_bktr_ioctl_bt848_h
1435     dev_bktr_ioctl_meteor_h
1436     dev_ic_bt8xx_h
1437     dev_video_bktr_ioctl_bt848_h
1438     dev_video_meteor_ioctl_meteor_h
1439     direct_h
1440     dlfcn_h
1441     dlopen
1442     dos_paths
1443     dxva_h
1444     ebp_available
1445     ebx_available
1446     fast_64bit
1447     fast_clz
1448     fast_cmov
1449     fcntl
1450     fork
1451     getaddrinfo
1452     gethrtime
1453     getopt
1454     GetProcessAffinityMask
1455     GetProcessMemoryInfo
1456     GetProcessTimes
1457     GetSystemTimeAsFileTime
1458     getrusage
1459     getservbyport
1460     gettimeofday
1461     glob
1462     gnu_as
1463     gsm_h
1464     i686
1465     ibm_asm
1466     inet_aton
1467     io_h
1468     isatty
1469     jack_port_get_latency_range
1470     kbhit
1471     ldbrx
1472     libdc1394_1
1473     libdc1394_2
1474     local_aligned_16
1475     local_aligned_8
1476     localtime_r
1477     loongson
1478     lzo1x_999_compress
1479     machine_ioctl_bt848_h
1480     machine_ioctl_meteor_h
1481     machine_rw_barrier
1482     makeinfo
1483     malloc_h
1484     MapViewOfFile
1485     memalign
1486     MemoryBarrier
1487     mkstemp
1488     mm_empty
1489     mmap
1490     mprotect
1491     msvcrt
1492     nanosleep
1493     openjpeg_1_5_openjpeg_h
1494     PeekNamedPipe
1495     perl
1496     pod2man
1497     poll_h
1498     posix_memalign
1499     pthread_cancel
1500     rdtsc
1501     rsync_contimeout
1502     sched_getaffinity
1503     sdl
1504     SetConsoleTextAttribute
1505     setmode
1506     setrlimit
1507     Sleep
1508     sndio_h
1509     socklen_t
1510     soundcard_h
1511     strerror_r
1512     struct_addrinfo
1513     struct_group_source_req
1514     struct_ip_mreq_source
1515     struct_ipv6_mreq
1516     struct_pollfd
1517     struct_rusage_ru_maxrss
1518     struct_sctp_event_subscribe
1519     struct_sockaddr_in6
1520     struct_sockaddr_sa_len
1521     struct_sockaddr_storage
1522     struct_stat_st_mtim_tv_nsec
1523     struct_v4l2_frmivalenum_discrete
1524     symver_asm_label
1525     symver_gnu_asm
1526     sync_val_compare_and_swap
1527     sysconf
1528     sysctl
1529     sys_mman_h
1530     sys_param_h
1531     sys_resource_h
1532     sys_select_h
1533     sys_soundcard_h
1534     sys_time_h
1535     sys_videoio_h
1536     termios_h
1537     texi2html
1538     threads
1539     unistd_h
1540     usleep
1541     vfp_args
1542     VirtualAlloc
1543     windows_h
1544     winsock2_h
1545     xform_asm
1546     xmm_clobbers
1547 "
1548
1549 # options emitted with CONFIG_ prefix but not available on the command line
1550 CONFIG_EXTRA="
1551     aandcttables
1552     ac3dsp
1553     audio_frame_queue
1554     dsputil
1555     frame_thread_encoder
1556     gcrypt
1557     golomb
1558     gplv3
1559     h264chroma
1560     h264dsp
1561     h264pred
1562     h264qpel
1563     hpeldsp
1564     huffman
1565     lgplv3
1566     lpc
1567     mpegaudio
1568     mpegaudiodsp
1569     mpegvideo
1570     mpegvideoenc
1571     nettle
1572     rangecoder
1573     rtpdec
1574     rtpenc_chain
1575     sinewin
1576     videodsp
1577     vp3dsp
1578 "
1579
1580 CMDLINE_SELECT="
1581     $ARCH_EXT_LIST
1582     $CONFIG_LIST
1583     $HAVE_LIST_CMDLINE
1584     $THREADS_LIST
1585     asm
1586     cross_compile
1587     debug
1588     extra_warnings
1589     logging
1590     lto
1591     optimizations
1592     stripping
1593 "
1594
1595 PATHS_LIST='
1596     bindir
1597     datadir
1598     incdir
1599     libdir
1600     mandir
1601     prefix
1602     shlibdir
1603 '
1604
1605 CMDLINE_SET="
1606     $PATHS_LIST
1607     ar
1608     arch
1609     as
1610     assert_level
1611     build_suffix
1612     cc
1613     cpu
1614     cross_prefix
1615     cxx
1616     dep_cc
1617     extra_version
1618     host_cc
1619     host_cflags
1620     host_ld
1621     host_ldflags
1622     host_libs
1623     host_os
1624     install
1625     ld
1626     logfile
1627     malloc_prefix
1628     nm
1629     optflags
1630     pkg_config
1631     progs_suffix
1632     random_seed
1633     samples
1634     strip
1635     sysinclude
1636     sysroot
1637     target_exec
1638     target_os
1639     target_path
1640     target_samples
1641     toolchain
1642     valgrind
1643     yasmexe
1644 "
1645
1646 CMDLINE_APPEND="
1647     extra_cflags
1648     extra_cxxflags
1649     host_cppflags
1650 "
1651
1652 # code dependency declarations
1653
1654 # architecture extensions
1655
1656 armv5te_deps="arm"
1657 armv6_deps="arm"
1658 armv6t2_deps="arm"
1659 neon_deps="arm"
1660 vfp_deps="arm"
1661 vfpv3_deps="vfp"
1662
1663 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1664
1665 mipsfpu_deps="mips"
1666 mips32r2_deps="mips"
1667 mipsdspr1_deps="mips"
1668 mipsdspr2_deps="mips"
1669
1670 altivec_deps="ppc"
1671 ppc4xx_deps="ppc"
1672
1673 vis_deps="sparc"
1674
1675 x86_64_suggest="fast_cmov i686"
1676
1677 amd3dnow_deps="mmx"
1678 amd3dnowext_deps="amd3dnow"
1679 mmx_deps="x86"
1680 mmxext_deps="mmx"
1681 sse_deps="mmxext"
1682 sse2_deps="sse"
1683 sse3_deps="sse2"
1684 ssse3_deps="sse3"
1685 sse4_deps="ssse3"
1686 sse42_deps="sse4"
1687 avx_deps="sse42"
1688 fma4_deps="avx"
1689
1690 mmx_external_deps="yasm"
1691 mmx_inline_deps="inline_asm"
1692 mmx_suggest="mmx_external mmx_inline"
1693
1694 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1695     eval dep=\$${ext}_deps
1696     eval ${ext}_external_deps='"${dep}_external"'
1697     eval ${ext}_inline_deps='"${dep}_inline"'
1698     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1699 done
1700
1701 aligned_stack_if_any="ppc x86"
1702 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1703 fast_clz_if_any="alpha avr32 mips ppc x86"
1704 fast_unaligned_if_any="ppc x86"
1705
1706 inline_asm_deps="!tms470"
1707 need_memalign="altivec neon sse"
1708
1709 symver_if_any="symver_asm_label symver_gnu_asm"
1710
1711 log2_deps="!msvcrt"
1712
1713 # subsystems
1714 dct_select="rdft"
1715 error_resilience_select="dsputil"
1716 frame_thread_encoder_deps="encoders threads"
1717 lpc_select="dsputil"
1718 mdct_select="fft"
1719 rdft_select="fft"
1720 mpegaudio_select="mpegaudiodsp"
1721 mpegaudiodsp_select="dct"
1722 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1723 mpegvideoenc_select="mpegvideo"
1724
1725 # decoders / encoders
1726 aac_decoder_select="mdct sinewin"
1727 aac_encoder_select="audio_frame_queue mdct sinewin"
1728 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1729 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1730 ac3_encoder_select="mdct ac3dsp dsputil"
1731 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1732 aic_decoder_select="dsputil golomb"
1733 alac_encoder_select="lpc"
1734 als_decoder_select="dsputil"
1735 amrnb_decoder_select="lsp"
1736 amrwb_decoder_select="lsp"
1737 amv_decoder_select="dsputil hpeldsp"
1738 amv_encoder_select="aandcttables"
1739 ape_decoder_select="dsputil"
1740 asv1_decoder_select="dsputil"
1741 asv1_encoder_select="dsputil"
1742 asv2_decoder_select="dsputil"
1743 asv2_encoder_select="dsputil"
1744 atrac1_decoder_select="mdct sinewin"
1745 atrac3_decoder_select="mdct"
1746 bink_decoder_select="dsputil hpeldsp"
1747 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1748 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1749 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1750 cllc_decoder_select="dsputil"
1751 comfortnoise_encoder_select="lpc"
1752 cook_decoder_select="dsputil mdct sinewin"
1753 cscd_decoder_select="lzo"
1754 cscd_decoder_suggest="zlib"
1755 dca_decoder_select="mdct"
1756 dirac_decoder_select="dsputil dwt golomb videodsp"
1757 dnxhd_decoder_select="dsputil"
1758 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1759 dvvideo_decoder_select="dsputil"
1760 dvvideo_encoder_select="dsputil"
1761 dxa_decoder_select="zlib"
1762 eac3_decoder_select="ac3_decoder"
1763 eac3_encoder_select="ac3_encoder"
1764 eamad_decoder_select="aandcttables dsputil mpegvideo"
1765 eatgq_decoder_select="aandcttables"
1766 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1767 exr_decoder_select="zlib"
1768 ffv1_decoder_select="dsputil golomb rangecoder"
1769 ffv1_encoder_select="dsputil rangecoder"
1770 ffvhuff_decoder_select="dsputil"
1771 ffvhuff_encoder_select="dsputil huffman"
1772 flac_decoder_select="golomb"
1773 flac_encoder_select="dsputil golomb lpc"
1774 flashsv_decoder_select="zlib"
1775 flashsv_encoder_select="zlib"
1776 flashsv2_encoder_select="zlib"
1777 flashsv2_decoder_select="zlib"
1778 flv_decoder_select="h263_decoder"
1779 flv_encoder_select="h263_encoder"
1780 fourxm_decoder_select="dsputil"
1781 fraps_decoder_select="dsputil huffman"
1782 g2m_decoder_select="dsputil zlib"
1783 g729_decoder_select="dsputil"
1784 h261_decoder_select="error_resilience mpegvideo"
1785 h261_encoder_select="aandcttables mpegvideoenc"
1786 h263_decoder_select="error_resilience h263_parser mpegvideo"
1787 h263_encoder_select="aandcttables mpegvideoenc"
1788 h263i_decoder_select="h263_decoder"
1789 h263p_encoder_select="h263_encoder"
1790 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1791 h264_decoder_suggest="error_resilience"
1792 huffyuv_decoder_select="dsputil"
1793 huffyuv_encoder_select="dsputil huffman"
1794 iac_decoder_select="dsputil fft mdct sinewin"
1795 imc_decoder_select="dsputil fft mdct sinewin"
1796 indeo3_decoder_select="hpeldsp"
1797 interplay_video_decoder_select="hpeldsp"
1798 jpegls_decoder_select="dsputil golomb hpeldsp"
1799 jpegls_encoder_select="golomb"
1800 jv_decoder_select="dsputil"
1801 lagarith_decoder_select="dsputil"
1802 ljpeg_encoder_select="aandcttables mpegvideoenc"
1803 loco_decoder_select="golomb"
1804 mdec_decoder_select="dsputil error_resilience mpegvideo"
1805 mimic_decoder_select="dsputil hpeldsp"
1806 mjpeg_decoder_select="dsputil hpeldsp"
1807 mjpegb_decoder_select="dsputil hpeldsp"
1808 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1809 mlp_decoder_select="dsputil mlp_parser"
1810 motionpixels_decoder_select="dsputil"
1811 mp1_decoder_select="mpegaudio"
1812 mp1float_decoder_select="mpegaudio"
1813 mp2_decoder_select="mpegaudio"
1814 mp2float_decoder_select="mpegaudio"
1815 mp3_decoder_select="mpegaudio"
1816 mp3adu_decoder_select="mpegaudio"
1817 mp3adufloat_decoder_select="mpegaudio"
1818 mp3float_decoder_select="mpegaudio"
1819 mp3on4_decoder_select="mpegaudio"
1820 mp3on4float_decoder_select="mpegaudio"
1821 mpc7_decoder_select="dsputil mpegaudiodsp"
1822 mpc8_decoder_select="dsputil mpegaudiodsp"
1823 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1824 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1825 mpeg1video_decoder_select="error_resilience mpegvideo"
1826 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1827 mpeg2video_decoder_select="error_resilience mpegvideo"
1828 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1829 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1830 mpeg4_encoder_select="h263_encoder"
1831 msmpeg4v1_decoder_select="h263_decoder"
1832 msmpeg4v2_decoder_select="h263_decoder"
1833 msmpeg4v2_encoder_select="h263_encoder"
1834 msmpeg4v3_decoder_select="h263_decoder"
1835 msmpeg4v3_encoder_select="h263_encoder"
1836 mss2_decoder_select="error_resilience vc1_decoder"
1837 mxpeg_decoder_select="dsputil hpeldsp"
1838 nellymoser_decoder_select="mdct sinewin"
1839 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1840 nuv_decoder_select="dsputil lzo"
1841 png_decoder_select="zlib"
1842 png_encoder_select="dsputil zlib"
1843 prores_decoder_select="dsputil"
1844 prores_encoder_select="dsputil"
1845 qcelp_decoder_select="lsp"
1846 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1847 ra_144_encoder_select="audio_frame_queue lpc"
1848 ralf_decoder_select="golomb"
1849 rtjpeg_decoder_select="dsputil"
1850 rv10_decoder_select="error_resilience h263_decoder"
1851 rv10_encoder_select="h263_encoder"
1852 rv20_decoder_select="error_resilience h263_decoder"
1853 rv20_encoder_select="h263_encoder"
1854 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1855 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1856 shorten_decoder_select="golomb"
1857 sipr_decoder_select="lsp"
1858 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1859 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1860 sonic_decoder_select="golomb"
1861 sonic_encoder_select="golomb"
1862 sonic_ls_encoder_select="golomb"
1863 sp5x_decoder_select="dsputil hpeldsp"
1864 svq1_decoder_select="hpeldsp"
1865 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1866 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1867 svq3_decoder_suggest="error_resilience zlib"
1868 tak_decoder_select="dsputil"
1869 theora_decoder_select="vp3_decoder"
1870 tiff_decoder_suggest="zlib"
1871 tiff_encoder_suggest="zlib"
1872 thp_decoder_select="dsputil hpeldsp"
1873 truehd_decoder_select="mlp_parser"
1874 truemotion2_decoder_select="dsputil"
1875 truespeech_decoder_select="dsputil"
1876 tscc_decoder_select="zlib"
1877 twinvq_decoder_select="mdct lsp sinewin"
1878 utvideo_decoder_select="dsputil"
1879 utvideo_encoder_select="dsputil huffman"
1880 vble_decoder_select="dsputil"
1881 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1882 vc1image_decoder_select="vc1_decoder"
1883 vorbis_decoder_select="mdct"
1884 vorbis_encoder_select="mdct"
1885 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1886 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1887 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1888 vp6a_decoder_select="vp6_decoder"
1889 vp6f_decoder_select="vp6_decoder"
1890 vp8_decoder_select="h264pred videodsp"
1891 webp_decoder_select="vp8_decoder"
1892 wmapro_decoder_select="mdct sinewin"
1893 wmav1_decoder_select="mdct sinewin"
1894 wmav1_encoder_select="mdct sinewin"
1895 wmav2_decoder_select="mdct sinewin"
1896 wmav2_encoder_select="mdct sinewin"
1897 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1898 wmv1_decoder_select="h263_decoder"
1899 wmv1_encoder_select="h263_encoder"
1900 wmv2_decoder_select="h263_decoder videodsp"
1901 wmv2_encoder_select="h263_encoder"
1902 wmv3_decoder_select="vc1_decoder"
1903 wmv3image_decoder_select="wmv3_decoder"
1904 zerocodec_decoder_select="zlib"
1905 zlib_decoder_select="zlib"
1906 zlib_encoder_select="zlib"
1907 zmbv_decoder_select="zlib"
1908 zmbv_encoder_select="zlib"
1909
1910 # hardware accelerators
1911 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1912 dxva2_deps="dxva2api_h"
1913 vaapi_deps="va_va_h"
1914 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1915 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1916 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1917
1918 h263_vaapi_hwaccel_deps="vaapi"
1919 h263_vaapi_hwaccel_select="h263_decoder"
1920 h263_vdpau_hwaccel_deps="vdpau"
1921 h263_vdpau_hwaccel_select="h263_decoder"
1922 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1923 h264_dxva2_hwaccel_deps="dxva2"
1924 h264_dxva2_hwaccel_select="h264_decoder"
1925 h264_vaapi_hwaccel_deps="vaapi"
1926 h264_vaapi_hwaccel_select="h264_decoder"
1927 h264_vda_decoder_deps="vda"
1928 h264_vda_decoder_select="h264_decoder"
1929 h264_vda_hwaccel_deps="vda"
1930 h264_vda_hwaccel_select="h264_decoder"
1931 h264_vdpau_decoder_deps="vdpau"
1932 h264_vdpau_decoder_select="h264_decoder"
1933 h264_vdpau_hwaccel_deps="vdpau"
1934 h264_vdpau_hwaccel_select="h264_decoder"
1935 mpeg_vdpau_decoder_deps="vdpau"
1936 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1937 mpeg1_vdpau_decoder_deps="vdpau"
1938 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1939 mpeg1_vdpau_hwaccel_deps="vdpau"
1940 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1941 mpeg2_crystalhd_decoder_select="crystalhd"
1942 mpeg2_dxva2_hwaccel_deps="dxva2"
1943 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1944 mpeg2_vaapi_hwaccel_deps="vaapi"
1945 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1946 mpeg2_vdpau_hwaccel_deps="vdpau"
1947 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1948 mpeg4_crystalhd_decoder_select="crystalhd"
1949 mpeg4_vaapi_hwaccel_deps="vaapi"
1950 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1951 mpeg4_vdpau_decoder_deps="vdpau"
1952 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1953 mpeg4_vdpau_hwaccel_deps="vdpau"
1954 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1955 msmpeg4_crystalhd_decoder_select="crystalhd"
1956 vc1_crystalhd_decoder_select="crystalhd"
1957 vc1_dxva2_hwaccel_deps="dxva2"
1958 vc1_dxva2_hwaccel_select="vc1_decoder"
1959 vc1_vaapi_hwaccel_deps="vaapi"
1960 vc1_vaapi_hwaccel_select="vc1_decoder"
1961 vc1_vdpau_decoder_deps="vdpau"
1962 vc1_vdpau_decoder_select="vc1_decoder"
1963 vc1_vdpau_hwaccel_deps="vdpau"
1964 vc1_vdpau_hwaccel_select="vc1_decoder"
1965 wmv3_crystalhd_decoder_select="crystalhd"
1966 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1967 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1968 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1969 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1970
1971 # parsers
1972 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1973 mpeg4video_parser_select="error_resilience mpegvideo"
1974 mpegvideo_parser_select="error_resilience mpegvideo"
1975 vc1_parser_select="mpegvideo"
1976
1977 # external libraries
1978 libaacplus_encoder_deps="libaacplus"
1979 libcelt_decoder_deps="libcelt"
1980 libfaac_encoder_deps="libfaac"
1981 libfaac_encoder_select="audio_frame_queue"
1982 libfdk_aac_encoder_deps="libfdk_aac"
1983 libfdk_aac_encoder_select="audio_frame_queue"
1984 libgme_demuxer_deps="libgme"
1985 libgsm_decoder_deps="libgsm"
1986 libgsm_encoder_deps="libgsm"
1987 libgsm_ms_decoder_deps="libgsm"
1988 libgsm_ms_encoder_deps="libgsm"
1989 libilbc_decoder_deps="libilbc"
1990 libilbc_encoder_deps="libilbc"
1991 libmodplug_demuxer_deps="libmodplug"
1992 libmp3lame_encoder_deps="libmp3lame"
1993 libmp3lame_encoder_select="audio_frame_queue"
1994 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1995 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1996 libopencore_amrnb_encoder_select="audio_frame_queue"
1997 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1998 libopenjpeg_decoder_deps="libopenjpeg"
1999 libopenjpeg_encoder_deps="libopenjpeg"
2000 libopus_decoder_deps="libopus"
2001 libopus_encoder_deps="libopus"
2002 libopus_encoder_select="audio_frame_queue"
2003 libquvi_demuxer_deps="libquvi"
2004 libschroedinger_decoder_deps="libschroedinger"
2005 libschroedinger_encoder_deps="libschroedinger"
2006 libshine_encoder_deps="libshine"
2007 libshine_encoder_select="audio_frame_queue"
2008 libspeex_decoder_deps="libspeex"
2009 libspeex_encoder_deps="libspeex"
2010 libspeex_encoder_select="audio_frame_queue"
2011 libstagefright_h264_decoder_deps="libstagefright_h264"
2012 libtheora_encoder_deps="libtheora"
2013 libtwolame_encoder_deps="libtwolame"
2014 libvo_aacenc_encoder_deps="libvo_aacenc"
2015 libvo_aacenc_encoder_select="audio_frame_queue"
2016 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2017 libvorbis_decoder_deps="libvorbis"
2018 libvorbis_encoder_deps="libvorbis"
2019 libvorbis_encoder_select="audio_frame_queue"
2020 libvpx_vp8_decoder_deps="libvpx"
2021 libvpx_vp8_encoder_deps="libvpx"
2022 libvpx_vp9_decoder_deps="libvpx"
2023 libvpx_vp9_encoder_deps="libvpx"
2024 libwavpack_encoder_deps="libwavpack"
2025 libx264_encoder_deps="libx264"
2026 libx264rgb_encoder_deps="libx264"
2027 libxavs_encoder_deps="libxavs"
2028 libxvid_encoder_deps="libxvid"
2029 libutvideo_decoder_deps="libutvideo"
2030 libutvideo_encoder_deps="libutvideo"
2031
2032 # demuxers / muxers
2033 ac3_demuxer_select="ac3_parser"
2034 asf_stream_muxer_select="asf_muxer"
2035 avisynth_demuxer_deps="avisynth"
2036 dirac_demuxer_select="dirac_parser"
2037 dts_demuxer_select="dca_parser"
2038 dtshd_demuxer_select="dca_parser"
2039 eac3_demuxer_select="ac3_parser"
2040 f4v_muxer_select="mov_muxer"
2041 flac_demuxer_select="flac_parser"
2042 ipod_muxer_select="mov_muxer"
2043 ismv_muxer_select="mov_muxer"
2044 libnut_demuxer_deps="libnut"
2045 libnut_muxer_deps="libnut"
2046 matroska_audio_muxer_select="matroska_muxer"
2047 matroska_demuxer_suggest="bzlib lzo zlib"
2048 mov_demuxer_suggest="zlib"
2049 mov_muxer_select="rtpenc_chain"
2050 mp3_demuxer_select="mpegaudio_parser"
2051 mp4_muxer_select="mov_muxer"
2052 mpegts_muxer_select="adts_muxer latm_muxer"
2053 mpegtsraw_demuxer_select="mpegts_demuxer"
2054 mxf_d10_muxer_select="mxf_muxer"
2055 ogg_demuxer_select="golomb"
2056 psp_muxer_select="mov_muxer"
2057 rtp_demuxer_select="sdp_demuxer"
2058 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2059 rtsp_demuxer_select="http_protocol rtpdec"
2060 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2061 sap_demuxer_select="sdp_demuxer"
2062 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2063 sdp_demuxer_select="rtpdec"
2064 smoothstreaming_muxer_select="ismv_muxer"
2065 spdif_muxer_select="aac_parser"
2066 tak_demuxer_select="tak_parser"
2067 tg2_muxer_select="mov_muxer"
2068 tgp_muxer_select="mov_muxer"
2069 vobsub_demuxer_select="mpegps_demuxer"
2070 w64_demuxer_deps="wav_demuxer"
2071 w64_muxer_deps="wav_muxer"
2072
2073 # indevs / outdevs
2074 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2075 alsa_outdev_deps="alsa_asoundlib_h"
2076 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2077 caca_outdev_deps="libcaca"
2078 dshow_indev_deps="IBaseFilter"
2079 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2080 dv1394_indev_deps="dv1394 dv_demuxer"
2081 fbdev_indev_deps="linux_fb_h"
2082 iec61883_indev_deps="libiec61883"
2083 jack_indev_deps="jack_jack_h sem_timedwait"
2084 lavfi_indev_deps="avfilter"
2085 libcdio_indev_deps="libcdio"
2086 libdc1394_indev_deps="libdc1394"
2087 libv4l2_indev_deps="libv4l2"
2088 openal_indev_deps="openal"
2089 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2090 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2091 pulse_indev_deps="libpulse"
2092 sdl_outdev_deps="sdl"
2093 sndio_indev_deps="sndio_h"
2094 sndio_outdev_deps="sndio_h"
2095 v4l_indev_deps="linux_videodev_h"
2096 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2097 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2098 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2099 vfwcap_indev_extralibs="-lavicap32"
2100 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2101 xv_outdev_extralibs="-lXv -lX11 -lXext"
2102 x11grab_indev_deps="x11grab"
2103
2104 # protocols
2105 bluray_protocol_deps="libbluray"
2106 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2107 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2108 ffrtmpcrypt_protocol_select="tcp_protocol"
2109 ffrtmphttp_protocol_deps="!librtmp_protocol"
2110 ffrtmphttp_protocol_select="http_protocol"
2111 ftp_protocol_select="tcp_protocol"
2112 gopher_protocol_select="network"
2113 httpproxy_protocol_select="tcp_protocol"
2114 http_protocol_select="tcp_protocol"
2115 https_protocol_select="tls_protocol"
2116 librtmp_protocol_deps="librtmp"
2117 librtmpe_protocol_deps="librtmp"
2118 librtmps_protocol_deps="librtmp"
2119 librtmpt_protocol_deps="librtmp"
2120 librtmpte_protocol_deps="librtmp"
2121 mmsh_protocol_select="http_protocol"
2122 mmst_protocol_select="network"
2123 rtmp_protocol_deps="!librtmp_protocol"
2124 rtmp_protocol_select="tcp_protocol"
2125 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2126 rtmps_protocol_deps="!librtmp_protocol"
2127 rtmps_protocol_select="tls_protocol"
2128 rtmpt_protocol_select="ffrtmphttp_protocol"
2129 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2130 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2131 rtp_protocol_select="udp_protocol"
2132 sctp_protocol_deps="struct_sctp_event_subscribe"
2133 sctp_protocol_select="network"
2134 srtp_protocol_select="rtp_protocol"
2135 tcp_protocol_select="network"
2136 tls_protocol_deps_any="openssl gnutls"
2137 tls_protocol_select="tcp_protocol"
2138 udp_protocol_select="network"
2139
2140 # filters
2141 aconvert_filter_deps="swresample"
2142 amovie_filter_deps="avcodec avformat"
2143 aresample_filter_deps="swresample"
2144 ass_filter_deps="libass"
2145 asyncts_filter_deps="avresample"
2146 atempo_filter_deps="avcodec rdft"
2147 azmq_filter_deps="libzmq"
2148 blackframe_filter_deps="gpl"
2149 boxblur_filter_deps="gpl"
2150 colormatrix_filter_deps="gpl"
2151 cropdetect_filter_deps="gpl"
2152 dctdnoiz_filter_deps="avcodec fft"
2153 delogo_filter_deps="gpl"
2154 deshake_filter_deps="avcodec"
2155 deshake_filter_select="dsputil"
2156 drawtext_filter_deps="libfreetype"
2157 ebur128_filter_deps="gpl"
2158 flite_filter_deps="libflite"
2159 frei0r_filter_deps="frei0r dlopen"
2160 frei0r_filter_extralibs='$ldl'
2161 frei0r_src_filter_deps="frei0r dlopen"
2162 frei0r_src_filter_extralibs='$ldl'
2163 geq_filter_deps="gpl"
2164 histeq_filter_deps="gpl"
2165 hqdn3d_filter_deps="gpl"
2166 hue_filter_deps="gpl"
2167 interlace_filter_deps="gpl"
2168 kerndeint_filter_deps="gpl"
2169 mcdeint_filter_deps="avcodec gpl"
2170 movie_filter_deps="avcodec avformat"
2171 mp_filter_deps="gpl avcodec swscale inline_asm"
2172 mpdecimate_filter_deps="gpl avcodec"
2173 mptestsrc_filter_deps="gpl"
2174 negate_filter_deps="lut_filter"
2175 noise_filter_deps="gpl"
2176 resample_filter_deps="avresample"
2177 ocv_filter_deps="libopencv"
2178 owdenoise_filter_deps="gpl"
2179 pan_filter_deps="swresample"
2180 pp_filter_deps="gpl postproc"
2181 removelogo_filter_deps="avcodec avformat swscale"
2182 sab_filter_deps="gpl swscale"
2183 scale_filter_deps="swscale"
2184 smartblur_filter_deps="gpl swscale"
2185 showspectrum_filter_deps="avcodec rdft"
2186 spp_filter_deps="gpl avcodec fft"
2187 stereo3d_filter_deps="gpl"
2188 subtitles_filter_deps="avformat avcodec libass"
2189 super2xsai_filter_deps="gpl"
2190 tinterlace_filter_deps="gpl"
2191 vidstabdetect_filter_deps="libvidstab"
2192 vidstabtransform_filter_deps="libvidstab"
2193 yadif_filter_deps="gpl"
2194 pixfmts_super2xsai_test_deps="super2xsai_filter"
2195 tinterlace_merge_test_deps="tinterlace_filter"
2196 tinterlace_pad_test_deps="tinterlace_filter"
2197 zmq_filter_deps="libzmq"
2198
2199 # libraries
2200 avcodec_deps="avutil"
2201 avdevice_deps="avutil avcodec avformat"
2202 avfilter_deps="avutil"
2203 avformat_deps="avutil avcodec"
2204 avresample_deps="avutil"
2205 postproc_deps="avutil gpl"
2206 swscale_deps="avutil"
2207
2208 # programs
2209 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2210 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2211                null_filter
2212                setpts_filter trim_filter"
2213 ffplay_deps="avcodec avformat swscale swresample sdl"
2214 ffplay_select="rdft crop_filter"
2215 ffprobe_deps="avcodec avformat"
2216 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2217 ffserver_extralibs='$ldl'
2218
2219 # documentation
2220 podpages_deps="perl"
2221 manpages_deps="perl pod2man"
2222 htmlpages_deps="texi2html"
2223 txtpages_deps="makeinfo"
2224 doc_deps_any="manpages htmlpages podpages txtpages"
2225
2226 # default parameters
2227
2228 logfile="config.log"
2229
2230 # installation paths
2231 prefix_default="/usr/local"
2232 bindir_default='${prefix}/bin'
2233 datadir_default='${prefix}/share/ffmpeg'
2234 incdir_default='${prefix}/include'
2235 libdir_default='${prefix}/lib'
2236 mandir_default='${prefix}/share/man'
2237 shlibdir_default="$libdir_default"
2238
2239 # toolchain
2240 ar_default="ar"
2241 cc_default="gcc"
2242 cxx_default="g++"
2243 host_cc_default="gcc"
2244 cp_f="cp -f"
2245 install="install"
2246 ln_s="ln -s -f"
2247 nm_default="nm -g"
2248 objformat="elf"
2249 pkg_config_default=pkg-config
2250 ranlib="ranlib"
2251 strip_default="strip"
2252 yasmexe_default="yasm"
2253
2254 nogas=":"
2255
2256 # machine
2257 arch_default=$(uname -m)
2258 cpu="generic"
2259
2260 # OS
2261 target_os_default=$(tolower $(uname -s))
2262 host_os=$target_os_default
2263
2264 # configurable options
2265 enable $PROGRAM_LIST
2266 enable $DOCUMENT_LIST
2267 enable $(filter_out avresample $LIBRARY_LIST)
2268 enable stripping
2269
2270 enable asm
2271 enable debug
2272 enable doc
2273 enable optimizations
2274 enable runtime_cpudetect
2275 enable safe_bitstream_reader
2276 enable static
2277 enable swscale_alpha
2278
2279 # Enable hwaccels by default.
2280 enable dxva2 vaapi vdpau
2281
2282 # build settings
2283 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2284 FFSERVERLDFLAGS=-Wl,-E
2285 LIBPREF="lib"
2286 LIBSUF=".a"
2287 FULLNAME='$(NAME)$(BUILDSUF)'
2288 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2289 SLIBPREF="lib"
2290 SLIBSUF=".so"
2291 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2292 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2293 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2294 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2295 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2296 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2297
2298 asflags_filter=echo
2299 cflags_filter=echo
2300 ldflags_filter=echo
2301
2302 AS_C='-c'
2303 AS_O='-o $@'
2304 CC_C='-c'
2305 CC_E='-E -o $@'
2306 CC_O='-o $@'
2307 CXX_C='-c'
2308 CXX_O='-o $@'
2309 LD_O='-o $@'
2310 LD_LIB='-l%'
2311 LD_PATH='-L'
2312 HOSTCC_C='-c'
2313 HOSTCC_O='-o $@'
2314 HOSTLD_O='-o $@'
2315
2316 host_cflags='-O3 -g'
2317 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2318 host_libs='-lm'
2319 host_cflags_filter=echo
2320 host_ldflags_filter=echo
2321
2322 target_path='$(CURDIR)'
2323
2324 # since the object filename is not given with the -MM flag, the compiler
2325 # is only able to print the basename, and we must add the path ourselves
2326 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2327 DEPFLAGS='-MM'
2328
2329 # find source path
2330 if test -f configure; then
2331     source_path=.
2332 else
2333     source_path=$(cd $(dirname "$0"); pwd)
2334     echo "$source_path" | grep -q '[[:blank:]]' &&
2335         die "Out of tree builds are impossible with whitespace in source path."
2336     test -e "$source_path/config.h" &&
2337         die "Out of tree builds are impossible with config.h in source dir."
2338 fi
2339
2340 for v in "$@"; do
2341     r=${v#*=}
2342     l=${v%"$r"}
2343     r=$(sh_quote "$r")
2344     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2345 done
2346
2347 find_things(){
2348     thing=$1
2349     pattern=$2
2350     file=$source_path/$3
2351     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2352 }
2353
2354 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2355 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2356 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2357 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2358 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2359 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2360 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2361 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2362 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2363 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2364 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2365
2366 ALL_COMPONENTS="
2367     $BSF_LIST
2368     $DECODER_LIST
2369     $DEMUXER_LIST
2370     $ENCODER_LIST
2371     $FILTER_LIST
2372     $HWACCEL_LIST
2373     $INDEV_LIST
2374     $MUXER_LIST
2375     $OUTDEV_LIST
2376     $PARSER_LIST
2377     $PROTOCOL_LIST
2378 "
2379
2380 for n in $COMPONENT_LIST; do
2381     v=$(toupper ${n%s})_LIST
2382     eval enable \$$v
2383     eval ${n}_if_any="\$$v"
2384 done
2385
2386 enable $ARCH_EXT_LIST
2387
2388 die_unknown(){
2389     echo "Unknown option \"$1\"."
2390     echo "See $0 --help for available options."
2391     exit 1
2392 }
2393
2394 print_3_columns() {
2395     cat | tr ' ' '\n' | sort | pr -r -3 -t
2396 }
2397
2398 show_list() {
2399     suffix=_$1
2400     shift
2401     echo $* | sed s/$suffix//g | print_3_columns
2402     exit 0
2403 }
2404
2405 rand_list(){
2406     IFS=', '
2407     set -- $*
2408     unset IFS
2409     for thing; do
2410         comp=${thing%:*}
2411         prob=${thing#$comp}
2412         prob=${prob#:}
2413         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2414         echo "prob ${prob:-0.5}"
2415         printf '%s\n' $comp
2416     done
2417 }
2418
2419 do_random(){
2420     action=$1
2421     shift
2422     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2423     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2424 }
2425
2426 for opt do
2427     optval="${opt#*=}"
2428     case "$opt" in
2429         --extra-ldflags=*)
2430             add_ldflags $optval
2431         ;;
2432         --extra-libs=*)
2433             add_extralibs $optval
2434         ;;
2435         --disable-devices)
2436             disable $INDEV_LIST $OUTDEV_LIST
2437         ;;
2438         --enable-debug=*)
2439             debuglevel="$optval"
2440         ;;
2441         --disable-programs)
2442             disable $PROGRAM_LIST
2443         ;;
2444         --disable-everything)
2445             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2446         ;;
2447         --disable-all)
2448             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2449             disable $LIBRARY_LIST $PROGRAM_LIST doc
2450         ;;
2451         --enable-random|--disable-random)
2452             action=${opt%%-random}
2453             do_random ${action#--} $COMPONENT_LIST
2454         ;;
2455         --enable-random=*|--disable-random=*)
2456             action=${opt%%-random=*}
2457             do_random ${action#--} $optval
2458         ;;
2459         --enable-*=*|--disable-*=*)
2460             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2461             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2462             eval list=\$$(toupper $thing)_LIST
2463             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2464             list=$(filter "$name" $list)
2465             [ "$list" = "" ] && warn "Option $opt did not match anything"
2466             $action $list
2467         ;;
2468         --enable-?*|--disable-?*)
2469             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2470             if is_in $option $COMPONENT_LIST; then
2471                 test $action = disable && action=unset
2472                 eval $action \$$(toupper ${option%s})_LIST
2473             elif is_in $option $CMDLINE_SELECT; then
2474                 $action $option
2475             else
2476                 die_unknown $opt
2477             fi
2478         ;;
2479         --list-*)
2480             NAME="${opt#--list-}"
2481             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2482             NAME=${NAME%s}
2483             eval show_list $NAME \$$(toupper $NAME)_LIST
2484         ;;
2485         --help|-h) show_help
2486         ;;
2487         --fatal-warnings) enable fatal_warnings
2488         ;;
2489         *)
2490             optname="${opt%%=*}"
2491             optname="${optname#--}"
2492             optname=$(echo "$optname" | sed 's/-/_/g')
2493             if is_in $optname $CMDLINE_SET; then
2494                 eval $optname='$optval'
2495             elif is_in $optname $CMDLINE_APPEND; then
2496                 append $optname "$optval"
2497             else
2498                 die_unknown $opt
2499             fi
2500         ;;
2501     esac
2502 done
2503
2504 disabled logging && logfile=/dev/null
2505
2506 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2507 set >> $logfile
2508
2509 test -n "$cross_prefix" && enable cross_compile
2510
2511 if enabled cross_compile; then
2512     test -n "$arch" && test -n "$target_os" ||
2513         die "Must specify target arch and OS when cross-compiling"
2514 fi
2515
2516 ar_default="${cross_prefix}${ar_default}"
2517 cc_default="${cross_prefix}${cc_default}"
2518 cxx_default="${cross_prefix}${cxx_default}"
2519 nm_default="${cross_prefix}${nm_default}"
2520 pkg_config_default="${cross_prefix}${pkg_config_default}"
2521 ranlib="${cross_prefix}${ranlib}"
2522 strip_default="${cross_prefix}${strip_default}"
2523
2524 sysinclude_default="${sysroot}/usr/include"
2525
2526 test -n "$valgrind" && toolchain="valgrind-memcheck"
2527
2528 case "$toolchain" in
2529     clang-asan)
2530         cc_default="clang"
2531         add_cflags  -fsanitize=address
2532         add_ldflags -fsanitize=address
2533     ;;
2534     clang-tsan)
2535         cc_default="clang"
2536         add_cflags  -fsanitize=thread -pie
2537         add_ldflags -fsanitize=thread -pie
2538     ;;
2539     gcc-asan)
2540         cc_default="gcc"
2541         add_cflags  -fsanitize=address
2542         add_ldflags -fsanitize=address
2543     ;;
2544     gcc-tsan)
2545         cc_default="gcc"
2546         add_cflags  -fsanitize=thread -pie -fPIC
2547         add_ldflags -fsanitize=thread -pie -fPIC
2548     ;;
2549     valgrind-massif)
2550         target_exec_default=${valgrind:-"valgrind"}
2551         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"
2552     ;;
2553     valgrind-memcheck)
2554         target_exec_default=${valgrind:-"valgrind"}
2555         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2556     ;;
2557     msvc)
2558         cc_default="c99wrap cl"
2559         ld_default="c99wrap link"
2560         nm_default="dumpbin -symbols"
2561         ar_default="lib"
2562         target_os_default="win32"
2563     ;;
2564     icl)
2565         cc_default="c99wrap -noconv icl"
2566         ld_default="c99wrap xilink"
2567         nm_default="dumpbin -symbols"
2568         ar_default="xilib"
2569         target_os_default="win32"
2570     ;;
2571     gcov)
2572         add_cflags  -fprofile-arcs -ftest-coverage
2573         add_ldflags -fprofile-arcs -ftest-coverage
2574     ;;
2575     ?*)
2576         die "Unknown toolchain $toolchain"
2577     ;;
2578 esac
2579
2580 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2581 enabled cross_compile || host_cc_default=$cc
2582 set_default host_cc
2583
2584 if ! $pkg_config --version >/dev/null 2>&1; then
2585     warn "$pkg_config not found, library detection may fail."
2586     pkg_config=false
2587 fi
2588
2589 exesuf() {
2590     case $1 in
2591         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2592     esac
2593 }
2594
2595 EXESUF=$(exesuf $target_os)
2596 HOSTEXESUF=$(exesuf $host_os)
2597
2598 # set temporary file name
2599 : ${TMPDIR:=$TEMPDIR}
2600 : ${TMPDIR:=$TMP}
2601 : ${TMPDIR:=/tmp}
2602
2603 if ! check_cmd mktemp -u XXXXXX; then
2604     # simple replacement for missing mktemp
2605     # NOT SAFE FOR GENERAL USE
2606     mktemp(){
2607         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2608     }
2609 fi
2610
2611 tmpfile(){
2612     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2613         (set -C; exec > $tmp) 2>/dev/null ||
2614         die "Unable to create temporary file in $TMPDIR."
2615     append TMPFILES $tmp
2616     eval $1=$tmp
2617 }
2618
2619 trap 'rm -f -- $TMPFILES' EXIT
2620
2621 tmpfile TMPASM .asm
2622 tmpfile TMPC   .c
2623 tmpfile TMPCPP .cpp
2624 tmpfile TMPE   $EXESUF
2625 tmpfile TMPH   .h
2626 tmpfile TMPO   .o
2627 tmpfile TMPS   .S
2628 tmpfile TMPSH  .sh
2629 tmpfile TMPV   .ver
2630
2631 unset -f mktemp
2632
2633 chmod +x $TMPE
2634
2635 # make sure we can execute files in $TMPDIR
2636 cat > $TMPSH 2>> $logfile <<EOF
2637 #! /bin/sh
2638 EOF
2639 chmod +x $TMPSH >> $logfile 2>&1
2640 if ! $TMPSH >> $logfile 2>&1; then
2641     cat <<EOF
2642 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2643 variable to another directory and make sure that it is not mounted noexec.
2644 EOF
2645     die "Sanity test failed."
2646 fi
2647
2648 ccc_flags(){
2649     for flag; do
2650         case $flag in
2651             -std=c99)           echo -c99                       ;;
2652             -mcpu=*)            echo -arch ${flag#*=}           ;;
2653             -mieee)             echo -ieee                      ;;
2654             -O*|-fast)          echo $flag                      ;;
2655             -fno-math-errno)    echo -assume nomath_errno       ;;
2656             -g)                 echo -g3                        ;;
2657             -Wall)              echo -msg_enable level2         ;;
2658             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2659             -Wl,*)              echo $flag                      ;;
2660             -f*|-W*)                                            ;;
2661             *)                  echo $flag                      ;;
2662         esac
2663    done
2664 }
2665
2666 msvc_common_flags(){
2667     for flag; do
2668         case $flag in
2669             # In addition to specifying certain flags under the compiler
2670             # specific filters, they must be specified here as well or else the
2671             # generic catch all at the bottom will print the original flag.
2672             -Wall)                ;;
2673             -std=c99)             ;;
2674             # Common flags
2675             -fomit-frame-pointer) ;;
2676             -g)                   echo -Z7 ;;
2677             -fno-math-errno)      ;;
2678             -fno-common)          ;;
2679             -fno-signed-zeros)    ;;
2680             -fPIC)                ;;
2681             -mthumb)              ;;
2682             -march=*)             ;;
2683             -lz)                  echo zlib.lib ;;
2684             -lavifil32)           echo vfw32.lib ;;
2685             -lavicap32)           echo vfw32.lib user32.lib ;;
2686             -l*)                  echo ${flag#-l}.lib ;;
2687             *)                    echo $flag ;;
2688         esac
2689     done
2690 }
2691
2692 msvc_flags(){
2693     msvc_common_flags "$@"
2694     for flag; do
2695         case $flag in
2696             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2697                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2698                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2699                                        -wd4554 \
2700                                        -wd4996 -wd4273 ;;
2701         esac
2702     done
2703 }
2704
2705 icl_flags(){
2706     msvc_common_flags "$@"
2707     for flag; do
2708         case $flag in
2709             # Despite what Intel's documentation says -Wall, which is supported
2710             # on Windows, does enable remarks so disable them here.
2711             -Wall)                echo $flag -Qdiag-disable:remark ;;
2712             -std=c99)             echo -Qstd=c99 ;;
2713         esac
2714     done
2715 }
2716
2717 pgi_flags(){
2718     for flag; do
2719         case $flag in
2720             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2721             -fomit-frame-pointer) echo -Mnoframe ;;
2722             -g)                   echo -gopt ;;
2723             *)                    echo $flag ;;
2724         esac
2725     done
2726 }
2727
2728 suncc_flags(){
2729     for flag; do
2730         case $flag in
2731             -march=*|-mcpu=*)
2732                 case "${flag#*=}" in
2733                     native)                   echo -xtarget=native       ;;
2734                     v9|niagara)               echo -xarch=sparc          ;;
2735                     ultrasparc)               echo -xarch=sparcvis       ;;
2736                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2737                     i586|pentium)             echo -xchip=pentium        ;;
2738                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2739                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2740                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2741                     pentium4*)          echo -xtarget=pentium4           ;;
2742                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2743                     *-sse3)             echo -xarch=sse3                 ;;
2744                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2745                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2746                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2747                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2748                     bdver*)                    echo -xarch=avx           ;;
2749                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2750                     k8|opteron|athlon64|athlon-fx)
2751                                                echo -xarch=sse2a         ;;
2752                     athlon*)                   echo -xarch=pentium_proa  ;;
2753                 esac
2754                 ;;
2755             -std=c99)             echo -xc99              ;;
2756             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2757             -fPIC)                echo -KPIC -xcode=pic32 ;;
2758             -W*,*)                echo $flag              ;;
2759             -f*-*|-W*|-mimpure-text)                      ;;
2760             -shared)              echo -G                 ;;
2761             *)                    echo $flag              ;;
2762         esac
2763     done
2764 }
2765
2766 tms470_flags(){
2767     for flag; do
2768         case $flag in
2769             -march=*|-mcpu=*)
2770                 case "${flag#*=}" in
2771                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2772                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2773                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2774                     armv6*|arm11*)          echo -mv=6   ;;
2775                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2776                                             echo -mv=5e  ;;
2777                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2778                 esac
2779                 ;;
2780             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2781             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2782             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2783             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2784             -msoft-float)   echo --float_support=vfplib       ;;
2785             -O[0-3]|-mf=*)  echo $flag                        ;;
2786             -g)             echo -g -mn                       ;;
2787             -pds=*)         echo $flag                        ;;
2788             -D*|-I*)        echo $flag                        ;;
2789             --gcc|--abi=*)  echo $flag                        ;;
2790             -me)            echo $flag                        ;;
2791         esac
2792     done
2793 }
2794
2795 probe_cc(){
2796     pfx=$1
2797     _cc=$2
2798
2799     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2800     unset _ld_o _ldflags _ld_lib _ld_path
2801     unset _depflags _DEPCMD _DEPFLAGS
2802     _flags_filter=echo
2803
2804     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2805         _type=llvm_gcc
2806         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2807         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2808         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2809         _cflags_speed='-O3'
2810         _cflags_size='-Os'
2811     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2812         _type=gcc
2813         gcc_version=$($_cc --version | head -n1)
2814         gcc_basever=$($_cc -dumpversion)
2815         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2816         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2817         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2818         if ! $_cc -dumpversion | grep -q '^2\.'; then
2819             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2820         fi
2821         _cflags_speed='-O3'
2822         _cflags_size='-Os'
2823     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2824         _type=icc
2825         _ident=$($_cc --version | head -n1)
2826         _depflags='-MMD'
2827         _cflags_speed='-O3'
2828         _cflags_size='-Os'
2829         _cflags_noopt='-O1'
2830     elif $_cc -v 2>&1 | grep -q xlc; then
2831         _type=xlc
2832         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2833         _cflags_speed='-O5'
2834         _cflags_size='-O5 -qcompact'
2835     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2836         _type=ccc
2837         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2838         _DEPFLAGS='-M'
2839         _cflags_speed='-fast'
2840         _cflags_size='-O1'
2841         _flags_filter=ccc_flags
2842     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2843         test -d "$sysroot" || die "No valid sysroot specified."
2844         _type=armcc
2845         _ident=$($_cc --vsn | head -n1)
2846         armcc_conf="$PWD/armcc.conf"
2847         $_cc --arm_linux_configure                 \
2848              --arm_linux_config_file="$armcc_conf" \
2849              --configure_sysroot="$sysroot"        \
2850              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2851              die "Error creating armcc configuration file."
2852         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2853         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2854         as_default="${cross_prefix}gcc"
2855         _depflags='-MMD'
2856         _cflags_speed='-O3'
2857         _cflags_size='-Os'
2858     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2859         _type=tms470
2860         _ident=$($_cc -version | head -n1 | tr -s ' ')
2861         _flags='--gcc --abi=eabi -me'
2862         _cc_e='-ppl -fe=$@'
2863         _cc_o='-fe=$@'
2864         _depflags='-ppa -ppd=$(@:.o=.d)'
2865         _cflags_speed='-O3 -mf=5'
2866         _cflags_size='-O3 -mf=2'
2867         _flags_filter=tms470_flags
2868     elif $_cc -v 2>&1 | grep -q clang; then
2869         _type=clang
2870         _ident=$($_cc --version | head -n1)
2871         _depflags='-MMD'
2872         _cflags_speed='-O3'
2873         _cflags_size='-Os'
2874     elif $_cc -V 2>&1 | grep -q Sun; then
2875         _type=suncc
2876         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2877         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2878         _DEPFLAGS='-xM1 -xc99'
2879         _ldflags='-std=c99'
2880         _cflags_speed='-O5'
2881         _cflags_size='-O5 -xspace'
2882         _flags_filter=suncc_flags
2883     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2884         _type=pathscale
2885         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2886         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2887         _cflags_speed='-O2'
2888         _cflags_size='-Os'
2889         _flags_filter='filter_out -Wdisabled-optimization'
2890     elif $_cc -v 2>&1 | grep -q Open64; then
2891         _type=open64
2892         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2893         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2894         _cflags_speed='-O2'
2895         _cflags_size='-Os'
2896         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2897     elif $_cc -V 2>&1 | grep -q Portland; then
2898         _type=pgi
2899         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2900         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2901         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2902         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2903         _cflags_noopt="-O"
2904         _flags_filter=pgi_flags
2905     elif $_cc 2>&1 | grep -q Microsoft; then
2906         _type=msvc
2907         _ident=$($cc 2>&1 | head -n1)
2908         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2909         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2910         _cflags_speed="-O2"
2911         _cflags_size="-O1"
2912         # Nonstandard output options, to avoid msys path conversion issues.
2913         # Relies on wrapper to remap it.
2914         if $_cc 2>&1 | grep -q Linker; then
2915             _ld_o='-out $@'
2916         else
2917             _ld_o='-Fe$@'
2918         fi
2919         _cc_o='-Fo $@'
2920         _cc_e='-P -Fi $@'
2921         _flags_filter=msvc_flags
2922         _ld_lib='lib%.a'
2923         _ld_path='-libpath:'
2924         _flags='-nologo'
2925         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2926         if [ $pfx = hostcc ]; then
2927             append _cflags -Dsnprintf=_snprintf
2928         fi
2929         disable stripping
2930     elif $_cc 2>&1 | grep -q Intel; then
2931         _type=icl
2932         _ident=$($cc 2>&1 | head -n1)
2933         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2934         # Not only is O3 broken on 13.x+ but it is slower on all previous
2935         # versions (tested) as well.
2936         _cflags_speed="-O2"
2937         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2938         # Nonstandard output options, to avoid msys path conversion issues.
2939         # Relies on wrapper to remap it.
2940         if $_cc 2>&1 | grep -q Linker; then
2941             _ld_o='-out $@'
2942         else
2943             _ld_o='-Fe$@'
2944         fi
2945         _cc_o='-Fo $@'
2946         _cc_e='-P'
2947         _flags_filter=icl_flags
2948         _ld_lib='lib%.a'
2949         _ld_path='-libpath:'
2950         # -Qdiag-error to make icl error when seeing certain unknown arguments
2951         _flags='-nologo -Qdiag-error:4044,10157'
2952         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2953         # with MSVC which enables it by default.
2954         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2955         if [ $pfx = hostcc ]; then
2956             append _cflags -Dsnprintf=_snprintf
2957         fi
2958     fi
2959
2960     eval ${pfx}_type=\$_type
2961     eval ${pfx}_ident=\$_ident
2962 }
2963
2964 set_ccvars(){
2965     eval ${1}_C=\${_cc_c-\${${1}_C}}
2966     eval ${1}_E=\${_cc_e-\${${1}_E}}
2967     eval ${1}_O=\${_cc_o-\${${1}_O}}
2968
2969     if [ -n "$_depflags" ]; then
2970         eval ${1}_DEPFLAGS=\$_depflags
2971     else
2972         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2973         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2974         eval DEP${1}FLAGS=\$_flags
2975     fi
2976 }
2977
2978 probe_cc cc "$cc"
2979 cflags_filter=$_flags_filter
2980 cflags_speed=$_cflags_speed
2981 cflags_size=$_cflags_size
2982 cflags_noopt=$_cflags_noopt
2983 add_cflags $_flags $_cflags
2984 cc_ldflags=$_ldflags
2985 set_ccvars CC
2986
2987 probe_cc hostcc "$host_cc"
2988 host_cflags_filter=$_flags_filter
2989 add_host_cflags  $_flags $_cflags
2990 set_ccvars HOSTCC
2991
2992 test -n "$cc_type" && enable $cc_type ||
2993     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2994
2995 : ${as_default:=$cc}
2996 : ${dep_cc_default:=$cc}
2997 : ${ld_default:=$cc}
2998 : ${host_ld_default:=$host_cc}
2999 set_default ar as dep_cc ld host_ld
3000
3001 probe_cc as "$as"
3002 asflags_filter=$_flags_filter
3003 add_asflags $_flags $_cflags
3004 set_ccvars AS
3005
3006 probe_cc ld "$ld"
3007 ldflags_filter=$_flags_filter
3008 add_ldflags $_flags $_ldflags
3009 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3010 LD_O=${_ld_o-$LD_O}
3011 LD_LIB=${_ld_lib-$LD_LIB}
3012 LD_PATH=${_ld_path-$LD_PATH}
3013
3014 probe_cc hostld "$host_ld"
3015 host_ldflags_filter=$_flags_filter
3016 add_host_ldflags $_flags $_ldflags
3017 HOSTLD_O=${_ld_o-$HOSTLD_O}
3018
3019 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3020     probe_cc depcc "$dep_cc"
3021     CCDEP=${_DEPCMD:-$DEPCMD}
3022     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3023     DEPCCFLAGS=$_flags
3024 fi
3025
3026 if $ar 2>&1 | grep -q Microsoft; then
3027     arflags="-nologo"
3028     ar_o='-out:$@'
3029 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3030     arflags="rq"
3031     ar_o='$@'
3032 else
3033     arflags="rc"
3034     ar_o='$@'
3035 fi
3036
3037 add_cflags $extra_cflags
3038 add_cxxflags $extra_cxxflags
3039 add_asflags $extra_cflags
3040
3041 if test -n "$sysroot"; then
3042     case "$cc_type" in
3043         gcc|llvm_gcc|clang)
3044             add_cppflags --sysroot="$sysroot"
3045             add_ldflags --sysroot="$sysroot"
3046         ;;
3047         tms470)
3048             add_cppflags -I"$sysinclude"
3049             add_ldflags  --sysroot="$sysroot"
3050         ;;
3051     esac
3052 fi
3053
3054 if test "$cpu" = host; then
3055     enabled cross_compile &&
3056         die "--cpu=host makes no sense when cross-compiling."
3057
3058     case "$cc_type" in
3059         gcc|llvm_gcc)
3060             check_native(){
3061                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3062                 sed -n "/cc1.*$1=/{
3063                             s/.*$1=\\([^ ]*\\).*/\\1/
3064                             p
3065                             q
3066                         }" $TMPE
3067             }
3068             cpu=$(check_native -march || check_native -mcpu)
3069         ;;
3070     esac
3071
3072     test "${cpu:-host}" = host &&
3073         die "--cpu=host not supported with compiler $cc"
3074 fi
3075
3076 # Deal with common $arch aliases
3077 case "$arch" in
3078     aarch64|arm64)
3079         arch="aarch64"
3080     ;;
3081     arm*|iPad*)
3082         arch="arm"
3083     ;;
3084     mips*|IP*)
3085         arch="mips"
3086     ;;
3087     parisc*|hppa*)
3088         arch="parisc"
3089     ;;
3090     "Power Macintosh"|ppc*|powerpc*)
3091         arch="ppc"
3092     ;;
3093     s390|s390x)
3094         arch="s390"
3095     ;;
3096     sh4|sh)
3097         arch="sh4"
3098     ;;
3099     sun4u|sparc*)
3100         arch="sparc"
3101     ;;
3102     tilegx|tile-gx)
3103         arch="tilegx"
3104     ;;
3105     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3106         arch="x86"
3107     ;;
3108 esac
3109
3110 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3111 enable $arch
3112
3113 # Add processor-specific flags
3114 if enabled aarch64; then
3115
3116     case $cpu in
3117         armv*)
3118             cpuflags="-march=$cpu"
3119         ;;
3120         *)
3121             cpuflags="-mcpu=$cpu"
3122         ;;
3123     esac
3124
3125 elif enabled alpha; then
3126
3127     cpuflags="-mcpu=$cpu"
3128
3129 elif enabled arm; then
3130
3131     check_arm_arch() {
3132         check_cpp_condition stddef.h \
3133             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3134             $cpuflags
3135     }
3136
3137     probe_arm_arch() {
3138         if   check_arm_arch 4;        then echo armv4;
3139         elif check_arm_arch 4T;       then echo armv4t;
3140         elif check_arm_arch 5;        then echo armv5;
3141         elif check_arm_arch 5E;       then echo armv5e;
3142         elif check_arm_arch 5T;       then echo armv5t;
3143         elif check_arm_arch 5TE;      then echo armv5te;
3144         elif check_arm_arch 5TEJ;     then echo armv5te;
3145         elif check_arm_arch 6;        then echo armv6;
3146         elif check_arm_arch 6J;       then echo armv6j;
3147         elif check_arm_arch 6K;       then echo armv6k;
3148         elif check_arm_arch 6Z;       then echo armv6z;
3149         elif check_arm_arch 6ZK;      then echo armv6zk;
3150         elif check_arm_arch 6T2;      then echo armv6t2;
3151         elif check_arm_arch 7;        then echo armv7;
3152         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3153         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3154         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3155         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3156         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3157         fi
3158     }
3159
3160     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3161
3162     case $cpu in
3163         armv*)
3164             cpuflags="-march=$cpu"
3165             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3166         ;;
3167         *)
3168             cpuflags="-mcpu=$cpu"
3169             case $cpu in
3170                 cortex-a*)                               subarch=armv7a  ;;
3171                 cortex-r*)                               subarch=armv7r  ;;
3172                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3173                 arm11*)                                  subarch=armv6   ;;
3174                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3175                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3176                 *)                             subarch=$(probe_arm_arch) ;;
3177             esac
3178         ;;
3179     esac
3180
3181     case "$subarch" in
3182         armv5t*)    enable fast_clz                ;;
3183         armv[6-8]*) enable fast_clz fast_unaligned ;;
3184     esac
3185
3186 elif enabled avr32; then
3187
3188     case $cpu in
3189         ap7[02]0[0-2])
3190             subarch="avr32_ap"
3191             cpuflags="-mpart=$cpu"
3192         ;;
3193         ap)
3194             subarch="avr32_ap"
3195             cpuflags="-march=$cpu"
3196         ;;
3197         uc3[ab]*)
3198             subarch="avr32_uc"
3199             cpuflags="-mcpu=$cpu"
3200         ;;
3201         uc)
3202             subarch="avr32_uc"
3203             cpuflags="-march=$cpu"
3204         ;;
3205     esac
3206
3207 elif enabled bfin; then
3208
3209     cpuflags="-mcpu=$cpu"
3210
3211 elif enabled mips; then
3212
3213     cpuflags="-march=$cpu"
3214
3215     case $cpu in
3216         24kc)
3217             disable mipsfpu
3218             disable mipsdspr1
3219             disable mipsdspr2
3220         ;;
3221         24kf*)
3222             disable mipsdspr1
3223             disable mipsdspr2
3224         ;;
3225         24kec|34kc|1004kc)
3226             disable mipsfpu
3227             disable mipsdspr2
3228         ;;
3229         24kef*|34kf*|1004kf*)
3230             disable mipsdspr2
3231         ;;
3232         74kc)
3233             disable mipsfpu
3234         ;;
3235     esac
3236
3237 elif enabled ppc; then
3238
3239     case $(tolower $cpu) in
3240         601|ppc601|powerpc601)
3241             cpuflags="-mcpu=601"
3242             disable altivec
3243         ;;
3244         603*|ppc603*|powerpc603*)
3245             cpuflags="-mcpu=603"
3246             disable altivec
3247         ;;
3248         604*|ppc604*|powerpc604*)
3249             cpuflags="-mcpu=604"
3250             disable altivec
3251         ;;
3252         g3|75*|ppc75*|powerpc75*)
3253             cpuflags="-mcpu=750"
3254             disable altivec
3255         ;;
3256         g4|745*|ppc745*|powerpc745*)
3257             cpuflags="-mcpu=7450"
3258         ;;
3259         74*|ppc74*|powerpc74*)
3260             cpuflags="-mcpu=7400"
3261         ;;
3262         g5|970|ppc970|powerpc970)
3263             cpuflags="-mcpu=970"
3264         ;;
3265         power[3-7]*)
3266             cpuflags="-mcpu=$cpu"
3267         ;;
3268         cell)
3269             cpuflags="-mcpu=cell"
3270             enable ldbrx
3271         ;;
3272         e500mc)
3273             cpuflags="-mcpu=e500mc"
3274             disable altivec
3275         ;;
3276         e500v2)
3277             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3278             disable altivec
3279         ;;
3280         e500)
3281             cpuflags="-mcpu=8540 -mhard-float"
3282             disable altivec
3283         ;;
3284     esac
3285
3286 elif enabled sparc; then
3287
3288     case $cpu in
3289         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3290             cpuflags="-mcpu=$cpu"
3291             disable vis
3292         ;;
3293         ultrasparc*|niagara[234])
3294             cpuflags="-mcpu=$cpu"
3295         ;;
3296     esac
3297
3298 elif enabled x86; then
3299
3300     case $cpu in
3301         i[345]86|pentium)
3302             cpuflags="-march=$cpu"
3303             disable mmx
3304         ;;
3305         # targets that do NOT support nopl and conditional mov (cmov)
3306         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3307             cpuflags="-march=$cpu"
3308             disable i686
3309         ;;
3310         # targets that do support nopl and conditional mov (cmov)
3311         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3312             cpuflags="-march=$cpu"
3313             enable i686
3314             enable fast_cmov
3315         ;;
3316         # targets that do support conditional mov but on which it's slow
3317         pentium4|pentium4m|prescott|nocona)
3318             cpuflags="-march=$cpu"
3319             enable i686
3320             disable fast_cmov
3321         ;;
3322     esac
3323
3324 fi
3325
3326 if [ "$cpu" != generic ]; then
3327     add_cflags  $cpuflags
3328     add_asflags $cpuflags
3329 fi
3330
3331 # compiler sanity check
3332 check_exec <<EOF
3333 int main(void){ return 0; }
3334 EOF
3335 if test "$?" != 0; then
3336     echo "$cc is unable to create an executable file."
3337     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3338         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3339         echo "Only do this if you know what cross compiling means."
3340     fi
3341     die "C compiler test failed."
3342 fi
3343
3344 add_cppflags -D_ISOC99_SOURCE
3345 add_cxxflags -D__STDC_CONSTANT_MACROS
3346 check_cflags -std=c99
3347 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3348 #include <stdlib.h>
3349 EOF
3350 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3351 #include <stdlib.h>
3352 EOF
3353
3354 check_host_cflags -std=c99
3355 check_host_cflags -Wall
3356
3357 check_64bit(){
3358     arch32=$1
3359     arch64=$2
3360     expr=$3
3361     check_code cc "" "int test[2*($expr) - 1]" &&
3362         subarch=$arch64 || subarch=$arch32
3363 }
3364
3365 case "$arch" in
3366     aarch64|alpha|ia64)
3367         spic=$shared
3368     ;;
3369     mips)
3370         check_64bit mips mips64 '_MIPS_SIM > 1'
3371         spic=$shared
3372     ;;
3373     parisc)
3374         check_64bit parisc parisc64 'sizeof(void *) > 4'
3375         spic=$shared
3376     ;;
3377     ppc)
3378         check_64bit ppc ppc64 'sizeof(void *) > 4'
3379         spic=$shared
3380     ;;
3381     sparc)
3382         check_64bit sparc sparc64 'sizeof(void *) > 4'
3383         spic=$shared
3384     ;;
3385     x86)
3386         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3387         if test "$subarch" = "x86_64"; then
3388             spic=$shared
3389         fi
3390     ;;
3391     ppc)
3392         check_cc <<EOF && subarch="ppc64"
3393         int test[(int)sizeof(char*) - 7];
3394 EOF
3395     ;;
3396 esac
3397
3398 enable $subarch
3399 enabled spic && enable_weak pic
3400
3401 # OS specific
3402 case $target_os in
3403     aix)
3404         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3405         ;;
3406     haiku)
3407         prefix_default="/boot/common"
3408         network_extralibs="-lnetwork"
3409         host_libs=
3410         ;;
3411     sunos)
3412         FFSERVERLDFLAGS=""
3413         SHFLAGS='-shared -Wl,-h,$$(@F)'
3414         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3415         network_extralibs="-lsocket -lnsl"
3416         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3417         # When using suncc to build, the Solaris linker will mark
3418         # an executable with each instruction set encountered by
3419         # the Solaris assembler.  As our libraries contain their own
3420         # guards for processor-specific code, instead suppress
3421         # generation of the HWCAPS ELF section on Solaris x86 only.
3422         enabled_all suncc x86 &&
3423             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3424             add_ldflags -Wl,-M,mapfile
3425         nm_default='nm -P -g'
3426         ;;
3427     netbsd)
3428         disable symver
3429         oss_indev_extralibs="-lossaudio"
3430         oss_outdev_extralibs="-lossaudio"
3431         enabled gcc || check_ldflags -Wl,-zmuldefs
3432         ;;
3433     openbsd|bitrig)
3434         disable symver
3435         SHFLAGS='-shared'
3436         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3437         SLIB_INSTALL_LINKS=
3438         oss_indev_extralibs="-lossaudio"
3439         oss_outdev_extralibs="-lossaudio"
3440         ;;
3441     dragonfly)
3442         disable symver
3443         ;;
3444     freebsd)
3445         ;;
3446     bsd/os)
3447         add_extralibs -lpoll -lgnugetopt
3448         strip="strip -d"
3449         ;;
3450     darwin)
3451         gas="gas-preprocessor.pl $cc"
3452         enabled ppc && add_asflags -force_cpusubtype_ALL
3453         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3454         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3455         strip="${strip} -x"
3456         add_ldflags -Wl,-dynamic,-search_paths_first
3457         SLIBSUF=".dylib"
3458         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3459         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3460         FFSERVERLDFLAGS=-Wl,-bind_at_load
3461         objformat="macho"
3462         enabled x86_64 && objformat="macho64"
3463         enabled_any pic shared ||
3464             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3465         ;;
3466     mingw32*)
3467         if test $target_os = "mingw32ce"; then
3468             disable network
3469         else
3470             target_os=mingw32
3471         fi
3472         LIBTARGET=i386
3473         if enabled x86_64; then
3474             LIBTARGET="i386:x86-64"
3475         elif enabled arm; then
3476             LIBTARGET=arm-wince
3477         fi
3478         check_ldflags -Wl,--nxcompat
3479         check_ldflags -Wl,--dynamicbase
3480         shlibdir_default="$bindir_default"
3481         SLIBPREF=""
3482         SLIBSUF=".dll"
3483         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3484         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3485         dlltool="${cross_prefix}dlltool"
3486         if check_cmd lib.exe -list; then
3487             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3488             if enabled x86_64; then
3489                 LIBTARGET=x64
3490             fi
3491         elif check_cmd $dlltool --version; then
3492             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3493         fi
3494         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3495         SLIB_INSTALL_LINKS=
3496         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3497         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3498         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3499         objformat="win32"
3500         ranlib=:
3501         enable dos_paths
3502         ;;
3503     win32|win64)
3504         if enabled shared; then
3505             # Link to the import library instead of the normal static library
3506             # for shared libs.
3507             LD_LIB='%.lib'
3508             # Cannot build shared and static libs at the same time with MSVC.
3509             disable static
3510         fi
3511         shlibdir_default="$bindir_default"
3512         SLIBPREF=""
3513         SLIBSUF=".dll"
3514         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3515         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3516         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3517         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3518         SLIB_INSTALL_LINKS=
3519         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3520         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3521         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3522         objformat="win32"
3523         ranlib=:
3524         enable dos_paths
3525         ;;
3526     cygwin*)
3527         target_os=cygwin
3528         shlibdir_default="$bindir_default"
3529         SLIBPREF="cyg"
3530         SLIBSUF=".dll"
3531         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3532         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3533         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3534         SLIB_INSTALL_LINKS=
3535         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3536         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3537         objformat="win32"
3538         enable dos_paths
3539         ;;
3540     *-dos|freedos|opendos)
3541         network_extralibs="-lsocket"
3542         objformat="coff"
3543         enable dos_paths
3544         add_cppflags -U__STRICT_ANSI__
3545         ;;
3546     linux)
3547         enable dv1394
3548         ;;
3549     irix*)
3550         target_os=irix
3551         ranlib="echo ignoring ranlib"
3552         ;;
3553     os/2*)
3554         strip="lxlite -CS"
3555         ln_s="cp -f"
3556         objformat="aout"
3557         add_cppflags -D_GNU_SOURCE
3558         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3559         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3560         FFSERVERLDFLAGS=""
3561         LIBSUF="_s.a"
3562         SLIBPREF=""
3563         SLIBSUF=".dll"
3564         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3565         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3566         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3567             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3568             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3569             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3570             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3571             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3572         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3573             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3574         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3575         enable dos_paths
3576         enable_weak os2threads
3577         ;;
3578     gnu/kfreebsd)
3579         add_cppflags -D_BSD_SOURCE
3580         ;;
3581     gnu)
3582         ;;
3583     qnx)
3584         add_cppflags -D_QNX_SOURCE
3585         network_extralibs="-lsocket"
3586         ;;
3587     symbian)
3588         SLIBSUF=".dll"
3589         enable dos_paths
3590         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3591         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3592         add_ldflags -Wl,--target1-abs,--no-undefined \
3593                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3594                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3595         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3596                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3597                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3598         ;;
3599     osf1)
3600         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3601         FFSERVERLDFLAGS=
3602         ;;
3603     minix)
3604         ;;
3605     plan9)
3606         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3607                      -D_REENTRANT_SOURCE        \
3608                      -D_RESEARCH_SOURCE         \
3609                      -DFD_SETSIZE=96            \
3610                      -DHAVE_SOCK_OPTS
3611         add_compat strtod.o strtod=avpriv_strtod
3612         network_extralibs='-lbsd'
3613         exeobjs=compat/plan9/main.o
3614         disable ffserver
3615         cp_f='cp'
3616         ;;
3617     none)
3618         ;;
3619     *)
3620         die "Unknown OS '$target_os'."
3621         ;;
3622 esac
3623
3624 # determine libc flavour
3625
3626 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3627 if check_cpp_condition features.h "defined __UCLIBC__"; then
3628     libc_type=uclibc
3629     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3630 elif check_cpp_condition features.h "defined __GLIBC__"; then
3631     libc_type=glibc
3632     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3633 # MinGW headers can be installed on Cygwin, so check for newlib first.
3634 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3635     libc_type=newlib
3636     add_cppflags -U__STRICT_ANSI__
3637 elif check_header _mingw.h; then
3638     libc_type=mingw
3639     check_cpp_condition _mingw.h \
3640         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3641             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3642         die "ERROR: MinGW runtime version must be >= 3.15."
3643     add_cppflags -U__STRICT_ANSI__
3644     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3645             __MINGW64_VERSION_MAJOR < 3"; then
3646         add_compat msvcrt/snprintf.o
3647         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3648     else
3649         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3650     fi
3651 elif check_func_headers stdlib.h _get_doserrno; then
3652     libc_type=msvcrt
3653     add_compat strtod.o strtod=avpriv_strtod
3654     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3655                                  _snprintf=avpriv_snprintf  \
3656                                  vsnprintf=avpriv_vsnprintf
3657     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3658     # 0x601 by default unless something else is set by the user.
3659     # This can easily lead to us detecting functions only present
3660     # in such new versions and producing binaries requiring windows 7.0.
3661     # Therefore explicitly set the default to XP unless the user has
3662     # set something else on the command line.
3663     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3664 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3665     libc_type=klibc
3666 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3667     libc_type=bionic
3668     add_compat strtod.o strtod=avpriv_strtod
3669 fi
3670
3671 test -n "$libc_type" && enable $libc_type
3672
3673 # hacks for compiler/libc/os combinations
3674
3675 if enabled_all tms470 glibc; then
3676     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3677     add_cppflags -D__USER_LABEL_PREFIX__=
3678     add_cppflags -D__builtin_memset=memset
3679     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3680     add_cflags   -pds=48    # incompatible redefinition of macro
3681 fi
3682
3683 if enabled_all ccc glibc; then
3684     add_ldflags -Wl,-z,now  # calls to libots crash without this
3685 fi
3686
3687 esc(){
3688     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3689 }
3690
3691 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3692
3693 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3694
3695 set_default $PATHS_LIST
3696 set_default nm
3697
3698 # we need to build at least one lib type
3699 if ! enabled_any static shared; then
3700     cat <<EOF
3701 At least one library type must be built.
3702 Specify --enable-static to build the static libraries or --enable-shared to
3703 build the shared libraries as well. To only build the shared libraries specify
3704 --disable-static in addition to --enable-shared.
3705 EOF
3706     exit 1;
3707 fi
3708
3709 # backward compatibility layer for incompatible_libav/fork_abi
3710 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3711 enabled incompatible_libav_abi && enable incompatible_fork_abi
3712
3713 die_license_disabled() {
3714     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3715 }
3716
3717 die_license_disabled_gpl() {
3718     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3719 }
3720
3721 die_license_disabled gpl frei0r
3722 die_license_disabled gpl libcdio
3723 die_license_disabled gpl libutvideo
3724 die_license_disabled gpl libvidstab
3725 die_license_disabled gpl libx264
3726 die_license_disabled gpl libxavs
3727 die_license_disabled gpl libxvid
3728 die_license_disabled gpl x11grab
3729
3730 die_license_disabled nonfree libaacplus
3731 die_license_disabled nonfree libfaac
3732 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3733 enabled gpl && die_license_disabled_gpl nonfree openssl
3734
3735 die_license_disabled version3 libopencore_amrnb
3736 die_license_disabled version3 libopencore_amrwb
3737 die_license_disabled version3 libvo_aacenc
3738 die_license_disabled version3 libvo_amrwbenc
3739
3740 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3741
3742 disabled optimizations || check_cflags -fomit-frame-pointer
3743
3744 enable_weak_pic() {
3745     disabled pic && return
3746     enable pic
3747     add_cppflags -DPIC
3748     case "$target_os" in
3749     mingw*|cygwin*)
3750         ;;
3751     *)
3752         add_cflags -fPIC
3753         ;;
3754     esac
3755     add_asflags  -fPIC
3756 }
3757
3758 enabled pic && enable_weak_pic
3759
3760 check_cc <<EOF || die "Symbol mangling check failed."
3761 int ff_extern;
3762 EOF
3763 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3764 extern_prefix=${sym%%ff_extern*}
3765
3766 check_cc <<EOF && enable_weak inline_asm
3767 void foo(void) { __asm__ volatile ("" ::); }
3768 EOF
3769
3770 _restrict=
3771 for restrict_keyword in restrict __restrict__ __restrict; do
3772     check_cc <<EOF && _restrict=$restrict_keyword && break
3773 void foo(char * $restrict_keyword p);
3774 EOF
3775 done
3776
3777 check_cc <<EOF && enable attribute_packed
3778 struct { int x; } __attribute__((packed)) x;
3779 EOF
3780
3781 check_cc <<EOF && enable attribute_may_alias
3782 union { int x; } __attribute__((may_alias)) x;
3783 EOF
3784
3785 check_cc <<EOF || die "endian test failed"
3786 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3787 EOF
3788 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3789
3790 if enabled alpha; then
3791
3792     check_cflags -mieee
3793
3794 elif enabled arm; then
3795
3796     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3797 float func(float a, float b){ return a+b; }
3798 EOF
3799
3800     enabled thumb && check_cflags -mthumb || check_cflags -marm
3801     nogas=die
3802
3803     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3804         enable vfp_args
3805     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3806         case "${cross_prefix:-$cc}" in
3807             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3808             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3809 __asm__ (".eabi_attribute 28, 1");
3810 int main(void) { return 0; }
3811 EOF
3812         esac
3813         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3814     fi
3815
3816     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3817     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3818     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3819     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3820     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3821     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3822
3823     [ $target_os = linux ] ||
3824         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3825             $ARCH_EXT_LIST_ARM
3826
3827     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3828     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3829
3830     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3831
3832 elif enabled mips; then
3833
3834     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3835     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3836      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3837     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3838      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3839     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3840      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3841     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3842      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3843
3844 elif enabled parisc; then
3845
3846     if enabled gcc; then
3847         case $($cc -dumpversion) in
3848             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3849         esac
3850     fi
3851
3852 elif enabled ppc; then
3853
3854     enable local_aligned_8 local_aligned_16
3855
3856     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3857     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3858     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3859     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3860
3861     # AltiVec flags: The FSF version of GCC differs from the Apple version
3862     if enabled altivec; then
3863         nogas=warn
3864         check_cflags -maltivec -mabi=altivec &&
3865         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3866         check_cflags -faltivec
3867
3868         # check if our compiler supports Motorola AltiVec C API
3869         check_cc <<EOF || disable altivec
3870 $inc_altivec_h
3871 int main(void) {
3872     vector signed int v1 = (vector signed int) { 0 };
3873     vector signed int v2 = (vector signed int) { 1 };
3874     v1 = vec_add(v1, v2);
3875     return 0;
3876 }
3877 EOF
3878
3879         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3880     fi
3881
3882 elif enabled sparc; then
3883
3884     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3885
3886 elif enabled x86; then
3887
3888     check_builtin rdtsc    intrin.h   "__rdtsc()"
3889     check_builtin mm_empty mmintrin.h "_mm_empty()"
3890
3891     enable local_aligned_8 local_aligned_16
3892
3893     # check whether EBP is available on x86
3894     # As 'i' is stored on the stack, this program will crash
3895     # if the base pointer is used to access it because the
3896     # base pointer is cleared in the inline assembly code.
3897     check_exec_crash <<EOF && enable ebp_available
3898 volatile int i=0;
3899 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3900 return i;
3901 EOF
3902
3903     # check whether EBX is available on x86
3904     check_inline_asm ebx_available '""::"b"(0)' &&
3905         check_inline_asm ebx_available '"":::"%ebx"'
3906
3907     # check whether xmm clobbers are supported
3908     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3909
3910     # check whether binutils is new enough to compile SSSE3/MMXEXT
3911     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3912     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3913
3914     if ! disabled_any asm mmx yasm; then
3915         if check_cmd $yasmexe --version; then
3916             enabled x86_64 && yasm_extra="-m amd64"
3917             yasm_debug="-g dwarf2"
3918         elif check_cmd nasm -v; then
3919             yasmexe=nasm
3920             yasm_debug="-g -F dwarf"
3921             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3922         fi
3923
3924         YASMFLAGS="-f $objformat $yasm_extra"
3925         enabled pic               && append YASMFLAGS "-DPIC"
3926         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3927         case "$objformat" in
3928             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3929         esac
3930
3931         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3932             die "yasm not found, use --disable-yasm for a crippled build"
3933         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3934         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3935         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3936     fi
3937
3938     case "$cpu" in
3939         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3940             disable fast_clz
3941         ;;
3942     esac
3943
3944 fi
3945
3946 if enabled asm; then
3947     as=${gas:=$as}
3948     check_as <<EOF && enable gnu_as || \
3949         $nogas "GNU assembler not found, install gas-preprocessor"
3950 .macro m n
3951 \n: .int 0
3952 .endm
3953 m x
3954 EOF
3955 fi
3956
3957 check_ldflags -Wl,--as-needed
3958
3959 if check_func dlopen; then
3960     ldl=
3961 elif check_func dlopen -ldl; then
3962     ldl=-ldl
3963 fi
3964
3965 if ! disabled network; then
3966     check_type "sys/types.h sys/socket.h" socklen_t
3967     check_type netdb.h "struct addrinfo"
3968     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3969     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3970     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3971     check_type netinet/in.h "struct sockaddr_in6"
3972     check_type poll.h "struct pollfd"
3973     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3974     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3975     check_type netinet/sctp.h "struct sctp_event_subscribe"
3976     check_func getaddrinfo $network_extralibs
3977     check_func getservbyport $network_extralibs
3978     # Prefer arpa/inet.h over winsock2
3979     if check_header arpa/inet.h ; then
3980         check_func closesocket
3981     elif check_header winsock2.h ; then
3982         check_func_headers winsock2.h closesocket -lws2 &&
3983             network_extralibs="-lws2" ||
3984         { check_func_headers winsock2.h closesocket -lws2_32 &&
3985             network_extralibs="-lws2_32"; }
3986         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3987         check_type ws2tcpip.h socklen_t
3988         check_type ws2tcpip.h "struct addrinfo"
3989         check_type ws2tcpip.h "struct group_source_req"
3990         check_type ws2tcpip.h "struct ip_mreq_source"
3991         check_type ws2tcpip.h "struct ipv6_mreq"
3992         check_type winsock2.h "struct pollfd"
3993         check_type ws2tcpip.h "struct sockaddr_in6"
3994         check_type ws2tcpip.h "struct sockaddr_storage"
3995         check_struct winsock2.h "struct sockaddr" sa_len
3996     else
3997         disable network
3998     fi
3999 fi
4000
4001 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4002 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4003
4004 check_func  access
4005 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4006 check_func  fcntl
4007 check_func  fork
4008 check_func_headers stdlib.h getenv
4009 check_func  gethrtime
4010 check_func  getopt
4011 check_func  getrusage
4012 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4013 check_func  gettimeofday
4014 check_func  inet_aton $network_extralibs
4015 check_func  isatty
4016 check_func  localtime_r
4017 check_func  ${malloc_prefix}memalign            && enable memalign
4018 check_func  mkstemp
4019 check_func  mmap
4020 check_func  mprotect
4021 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4022 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4023 check_func  setrlimit
4024 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4025 check_func  strerror_r
4026 check_func  sched_getaffinity
4027 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4028 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4029 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4030 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4031 check_func  sysconf
4032 check_func  sysctl
4033 check_func  usleep
4034 check_func_headers conio.h kbhit
4035 check_func_headers windows.h PeekNamedPipe
4036 check_func_headers io.h setmode
4037 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4038 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4039 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4040 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4041 check_func_headers windows.h GetProcessAffinityMask
4042 check_func_headers windows.h GetProcessTimes
4043 check_func_headers windows.h GetSystemTimeAsFileTime
4044 check_func_headers windows.h MapViewOfFile
4045 check_func_headers windows.h SetConsoleTextAttribute
4046 check_func_headers windows.h Sleep
4047 check_func_headers windows.h VirtualAlloc
4048 check_func_headers glob.h glob
4049 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4050
4051 check_header cl/cl.h
4052 check_header direct.h
4053 check_header dlfcn.h
4054 check_header dxva.h
4055 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4056 check_header io.h
4057 check_header libcrystalhd/libcrystalhd_if.h
4058 check_header malloc.h
4059 check_header poll.h
4060 check_header sys/mman.h
4061 check_header sys/param.h
4062 check_header sys/resource.h
4063 check_header sys/select.h
4064 check_header sys/time.h
4065 check_header termios.h
4066 check_header unistd.h
4067 check_header vdpau/vdpau.h
4068 check_header vdpau/vdpau_x11.h
4069 check_header VideoDecodeAcceleration/VDADecoder.h
4070 check_header windows.h
4071 check_header X11/extensions/XvMClib.h
4072 check_header asm/types.h
4073
4074 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4075 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4076
4077 if ! disabled w32threads && ! enabled pthreads; then
4078     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4079 fi
4080
4081 # check for some common methods of building with pthread support
4082 # do this before the optional library checks as some of them require pthreads
4083 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4084     enable pthreads
4085     if check_func pthread_create; then
4086         :
4087     elif check_func pthread_create -pthread; then
4088         add_cflags -pthread
4089         add_extralibs -pthread
4090     elif check_func pthread_create -pthreads; then
4091         add_cflags -pthreads
4092         add_extralibs -pthreads
4093     elif check_func pthread_create -lpthreadGC2; then
4094         add_extralibs -lpthreadGC2
4095     elif ! check_lib pthread.h pthread_create -lpthread; then
4096         disable pthreads
4097     fi
4098 fi
4099
4100 for thread in $THREADS_LIST; do
4101     if enabled $thread; then
4102         test -n "$thread_type" &&
4103             die "ERROR: Only one thread type must be selected." ||
4104             thread_type="$thread"
4105     fi
4106 done
4107
4108 if enabled pthreads; then
4109   check_func pthread_cancel
4110 fi
4111
4112 enabled sync_val_compare_and_swap && enable atomics_gcc
4113 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4114 enabled MemoryBarrier && enable atomics_win32
4115
4116 check_lib math.h sin -lm && LIBM="-lm"
4117 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4118
4119 atan2f_args=2
4120 ldexpf_args=2
4121 powf_args=2
4122
4123 for func in $MATH_FUNCS; do
4124     eval check_mathfunc $func \${${func}_args:-1}
4125 done
4126
4127 # these are off by default, so fail if requested and not available
4128 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4129                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4130                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4131 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4132 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4133 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4134 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4135 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4136 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4137 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4138 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4139                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4140                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4141 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4142 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4143 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4144 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"
4145 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4146 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4147 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme
4148 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4149                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4150                                done || die "ERROR: libgsm not found"; }
4151 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4152 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4153 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4154 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4155 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4156 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4157 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4158 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4159                                check_lib openjpeg.h opj_version -lopenjpeg ||
4160                                die "ERROR: libopenjpeg not found"; }
4161 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4162 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4163 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4164 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4165 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4166 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_frame
4167 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4168 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4169 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4170     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4171     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4172 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4173 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4174                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4175                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4176 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4177 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4178 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4179 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4180 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4181 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4182 enabled libvpx            && {
4183     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4184                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4185     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 ||
4186                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4187     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4188     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4189 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4190 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4191                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4192                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4193 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4194 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4195 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4196 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4197                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4198                                die "ERROR: openal not found"; } &&
4199                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4200                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4201 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4202                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4203                                die "ERROR: opencl not found"; } &&
4204                              { enabled_any w32threads os2threads &&
4205                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4206                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4207                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4208                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4209 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4210                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4211                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4212                                die "ERROR: openssl not found"; }
4213
4214 if enabled gnutls; then
4215     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4216     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4217 fi
4218
4219 # libdc1394 check
4220 if enabled libdc1394; then
4221     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4222         enable libdc1394_2; } ||
4223     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4224         enable libdc1394_1; } ||
4225     die "ERROR: No version of libdc1394 found "
4226 fi
4227
4228 SDL_CONFIG="${cross_prefix}sdl-config"
4229 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4230     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4231     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4232     enable sdl
4233 else
4234   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4235     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4236     sdl_libs=$("${SDL_CONFIG}" --libs)
4237     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4238     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4239     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4240     enable sdl
4241   fi
4242 fi
4243 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4244
4245 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4246 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4247 perl --version > /dev/null 2>&1 && enable perl || disable perl
4248 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4249 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4250
4251 check_header linux/fb.h
4252 check_header linux/videodev.h
4253 check_header linux/videodev2.h
4254 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4255
4256 check_header sys/videoio.h
4257
4258 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4259 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4260 # w32api 3.12 had it defined wrong
4261 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4262
4263 check_type "dshow.h" IBaseFilter
4264
4265 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4266 { check_header dev/bktr/ioctl_meteor.h &&
4267   check_header dev/bktr/ioctl_bt848.h; } ||
4268 { check_header machine/ioctl_meteor.h &&
4269   check_header machine/ioctl_bt848.h; } ||
4270 { check_header dev/video/meteor/ioctl_meteor.h &&
4271   check_header dev/video/bktr/ioctl_bt848.h; } ||
4272 check_header dev/ic/bt8xx.h
4273
4274 check_header sndio.h
4275 if check_struct sys/soundcard.h audio_buf_info bytes; then
4276     enable_safe sys/soundcard.h
4277 else
4278     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4279     #include <sys/soundcard.h>
4280     audio_buf_info abc;
4281 EOF
4282 fi
4283 check_header soundcard.h
4284
4285 enabled_any alsa_indev alsa_outdev &&
4286     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4287
4288 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4289     check_func jack_port_get_latency_range -ljack
4290
4291 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4292
4293 if enabled libcdio; then
4294     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4295     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4296     die "ERROR: libcdio-paranoia not found"
4297 fi
4298
4299 enabled x11grab                                           &&
4300 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4301 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4302 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4303
4304 enabled vaapi &&
4305     check_lib va/va.h vaInitialize -lva ||
4306     disable vaapi
4307
4308 enabled vdpau &&
4309     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4310     disable vdpau
4311
4312 # Funny iconv installations are not unusual, so check it after all flags have been set
4313 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4314
4315 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4316
4317 # add some useful compiler flags if supported
4318 check_cflags -Wdeclaration-after-statement
4319 check_cflags -Wall
4320 check_cflags -Wno-parentheses
4321 check_cflags -Wno-switch
4322 check_cflags -Wno-format-zero-length
4323 check_cflags -Wdisabled-optimization
4324 check_cflags -Wpointer-arith
4325 check_cflags -Wredundant-decls
4326 check_cflags -Wno-pointer-sign
4327 check_cflags -Wwrite-strings
4328 check_cflags -Wtype-limits
4329 check_cflags -Wundef
4330 check_cflags -Wmissing-prototypes
4331 check_cflags -Wno-pointer-to-int-cast
4332 check_cflags -Wstrict-prototypes
4333 enabled extra_warnings && check_cflags -Winline
4334
4335 # add some linker flags
4336 check_ldflags -Wl,--warn-common
4337 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4338 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4339
4340 enabled xmm_clobber_test &&
4341     check_ldflags -Wl,--wrap,avcodec_open2              \
4342                   -Wl,--wrap,avcodec_decode_audio4      \
4343                   -Wl,--wrap,avcodec_decode_video2      \
4344                   -Wl,--wrap,avcodec_decode_subtitle2   \
4345                   -Wl,--wrap,avcodec_encode_audio2      \
4346                   -Wl,--wrap,avcodec_encode_video       \
4347                   -Wl,--wrap,avcodec_encode_subtitle    \
4348                   -Wl,--wrap,sws_scale ||
4349     disable xmm_clobber_test
4350
4351 echo "X{};" > $TMPV
4352 if test_ldflags -Wl,--version-script,$TMPV; then
4353     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4354     check_cc <<EOF && enable symver_asm_label
4355 void ff_foo(void) __asm__ ("av_foo@VERSION");
4356 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4357 EOF
4358     check_cc <<EOF && enable symver_gnu_asm
4359 __asm__(".symver ff_foo,av_foo@VERSION");
4360 void ff_foo(void) {}
4361 EOF
4362 fi
4363
4364 if [ -z "$optflags" ]; then
4365     if enabled small; then
4366         optflags=$cflags_size
4367     elif enabled optimizations; then
4368         optflags=$cflags_speed
4369     else
4370         optflags=$cflags_noopt
4371     fi
4372 fi
4373
4374 check_optflags(){
4375     check_cflags "$@"
4376     enabled lto && check_ldflags "$@"
4377 }
4378
4379
4380 if enabled lto; then
4381     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4382     check_cflags  -flto
4383     check_ldflags -flto $cpuflags
4384 fi
4385
4386 check_optflags $optflags
4387 check_optflags -fno-math-errno
4388 check_optflags -fno-signed-zeros
4389
4390 enabled ftrapv && check_cflags -ftrapv
4391
4392 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4393 int x;
4394 EOF
4395
4396
4397 if enabled icc; then
4398     # Just warnings, no remarks
4399     check_cflags -w1
4400     # -wd: Disable following warnings
4401     # 144, 167, 556: -Wno-pointer-sign
4402     # 188: enumerated type mixed with another type
4403     # 1292: attribute "foo" ignored
4404     # 1419: external declaration in primary source file
4405     # 10006: ignoring unknown option -fno-signed-zeros
4406     # 10148: ignoring unknown option -Wno-parentheses
4407     # 10156: ignoring option '-W'; no argument required
4408     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4409     # 11030: Warning unknown option --as-needed
4410     # 10156: ignoring option '-export'; no argument required
4411     check_ldflags -wd10156,11030
4412     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4413     enable ebp_available
4414     if enabled x86_32; then
4415         icc_version=$($cc -dumpversion)
4416         test ${icc_version%%.*} -ge 11 &&
4417             check_cflags -falign-stack=maintain-16-byte ||
4418             disable aligned_stack
4419     fi
4420 elif enabled ccc; then
4421     # disable some annoying warnings
4422     add_cflags -msg_disable bitnotint
4423     add_cflags -msg_disable mixfuncvoid
4424     add_cflags -msg_disable nonstandcast
4425     add_cflags -msg_disable unsupieee
4426 elif enabled gcc; then
4427     check_optflags -fno-tree-vectorize
4428     check_cflags -Werror=implicit-function-declaration
4429     check_cflags -Werror=missing-prototypes
4430     check_cflags -Werror=return-type
4431     check_cflags -Werror=vla
4432 elif enabled llvm_gcc; then
4433     check_cflags -mllvm -stack-alignment=16
4434 elif enabled clang; then
4435     check_cflags -mllvm -stack-alignment=16
4436     check_cflags -Qunused-arguments
4437     check_cflags -Werror=implicit-function-declaration
4438     check_cflags -Werror=missing-prototypes
4439     check_cflags -Werror=return-type
4440 elif enabled armcc; then
4441     # 2523: use of inline assembler is deprecated
4442     add_cflags -W${armcc_opt},--diag_suppress=2523
4443     add_cflags -W${armcc_opt},--diag_suppress=1207
4444     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4445     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4446     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4447     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4448 elif enabled tms470; then
4449     add_cflags -pds=824 -pds=837
4450 elif enabled pathscale; then
4451     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4452 elif enabled_any msvc icl; then
4453     enabled x86_32 && disable aligned_stack
4454     enabled_all x86_32 debug && add_cflags -Oy-
4455     if enabled icl; then
4456         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4457         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4458         # icl will pass the inline asm tests but inline asm is currently
4459         # not supported (build will fail)
4460         disable inline_asm
4461     fi
4462 fi
4463
4464 case $target_os in
4465     osf1)
4466         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4467     ;;
4468     plan9)
4469         add_cppflags -Dmain=plan9_main
4470     ;;
4471 esac
4472
4473 enable frame_thread_encoder
4474 enabled_any $THREADS_LIST      && enable threads
4475 enabled_any $ATOMICS_LIST      && enable atomics_native
4476
4477 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4478
4479 check_deps $CONFIG_LIST       \
4480            $CONFIG_EXTRA      \
4481            $HAVE_LIST         \
4482            $ALL_COMPONENTS    \
4483
4484
4485 if test $target_os = "haiku"; then
4486     disable memalign
4487     disable posix_memalign
4488 fi
4489
4490 ! enabled_any memalign posix_memalign aligned_malloc &&
4491     enabled_any $need_memalign && enable memalign_hack
4492
4493 # add_dep lib dep
4494 # -> enable ${lib}_deps_${dep}
4495 # -> add $dep to ${lib}_deps only once
4496 add_dep() {
4497     lib=$1
4498     dep=$2
4499     enabled "${lib}_deps_${dep}" && return 0
4500     enable  "${lib}_deps_${dep}"
4501     prepend "${lib}_deps" $dep
4502 }
4503
4504 # merge deps lib components
4505 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4506 merge_deps() {
4507     lib=$1
4508     shift
4509     for comp in $*; do
4510         enabled $comp || continue
4511         eval "dep=\"\$${comp}_deps\""
4512         for d in $dep; do
4513             add_dep $lib $d
4514         done
4515     done
4516 }
4517
4518 merge_deps libavfilter $FILTER_LIST
4519
4520 echo "install prefix            $prefix"
4521 echo "source path               $source_path"
4522 echo "C compiler                $cc"
4523 echo "ARCH                      $arch ($cpu)"
4524 if test "$build_suffix" != ""; then
4525     echo "build suffix              $build_suffix"
4526 fi
4527 if test "$progs_suffix" != ""; then
4528     echo "progs suffix              $progs_suffix"
4529 fi
4530 if test "$extra_version" != ""; then
4531     echo "version string suffix     $extra_version"
4532 fi
4533 echo "big-endian                ${bigendian-no}"
4534 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4535 if enabled x86; then
4536     echo "${yasmexe}                      ${yasm-no}"
4537     echo "MMX enabled               ${mmx-no}"
4538     echo "MMXEXT enabled            ${mmxext-no}"
4539     echo "3DNow! enabled            ${amd3dnow-no}"
4540     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4541     echo "SSE enabled               ${sse-no}"
4542     echo "SSSE3 enabled             ${ssse3-no}"
4543     echo "AVX enabled               ${avx-no}"
4544     echo "FMA4 enabled              ${fma4-no}"
4545     echo "i686 features enabled     ${i686-no}"
4546     echo "CMOV is fast              ${fast_cmov-no}"
4547     echo "EBX available             ${ebx_available-no}"
4548     echo "EBP available             ${ebp_available-no}"
4549 fi
4550 if enabled arm; then
4551     echo "ARMv5TE enabled           ${armv5te-no}"
4552     echo "ARMv6 enabled             ${armv6-no}"
4553     echo "ARMv6T2 enabled           ${armv6t2-no}"
4554     echo "VFP enabled               ${vfp-no}"
4555     echo "NEON enabled              ${neon-no}"
4556     echo "THUMB enabled             ${thumb-no}"
4557 fi
4558 if enabled mips; then
4559     echo "MIPS FPU enabled          ${mipsfpu-no}"
4560     echo "MIPS32R2 enabled          ${mips32r2-no}"
4561     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4562     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4563 fi
4564 if enabled ppc; then
4565     echo "AltiVec enabled           ${altivec-no}"
4566     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4567     echo "dcbzl available           ${dcbzl-no}"
4568 fi
4569 if enabled sparc; then
4570     echo "VIS enabled               ${vis-no}"
4571 fi
4572 echo "debug symbols             ${debug-no}"
4573 echo "strip symbols             ${stripping-no}"
4574 echo "optimize for size         ${small-no}"
4575 echo "optimizations             ${optimizations-no}"
4576 echo "static                    ${static-no}"
4577 echo "shared                    ${shared-no}"
4578 echo "postprocessing support    ${postproc-no}"
4579 echo "new filter support        ${avfilter-no}"
4580 echo "network support           ${network-no}"
4581 echo "threading support         ${thread_type-no}"
4582 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4583 echo "SDL support               ${sdl-no}"
4584 echo "opencl enabled            ${opencl-no}"
4585 echo "texi2html enabled         ${texi2html-no}"
4586 echo "perl enabled              ${perl-no}"
4587 echo "pod2man enabled           ${pod2man-no}"
4588 echo "makeinfo enabled          ${makeinfo-no}"
4589 test -n "$random_seed" &&
4590     echo "random seed               ${random_seed}"
4591 echo
4592
4593 echo "External libraries:"
4594 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4595 echo
4596
4597 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4598     echo "Enabled ${type}s:"
4599     eval list=\$$(toupper $type)_LIST
4600     print_enabled '_*' $list | print_3_columns
4601     echo
4602 done
4603
4604 license="LGPL version 2.1 or later"
4605 if enabled nonfree; then
4606     license="nonfree and unredistributable"
4607 elif enabled gplv3; then
4608     license="GPL version 3 or later"
4609 elif enabled lgplv3; then
4610     license="LGPL version 3 or later"
4611 elif enabled gpl; then
4612     license="GPL version 2 or later"
4613 fi
4614
4615 echo "License: $license"
4616
4617 echo "Creating config.mak, config.h, and doc/config.texi..."
4618
4619 test -e Makefile || $ln_s "$source_path/Makefile" .
4620
4621 enabled stripping || strip="echo skipping strip"
4622
4623 config_files="$TMPH config.mak doc/config.texi"
4624
4625 cat > config.mak <<EOF
4626 # Automatically generated by configure - do not modify!
4627 ifndef FFMPEG_CONFIG_MAK
4628 FFMPEG_CONFIG_MAK=1
4629 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4630 prefix=$prefix
4631 LIBDIR=\$(DESTDIR)$libdir
4632 SHLIBDIR=\$(DESTDIR)$shlibdir
4633 INCDIR=\$(DESTDIR)$incdir
4634 BINDIR=\$(DESTDIR)$bindir
4635 DATADIR=\$(DESTDIR)$datadir
4636 MANDIR=\$(DESTDIR)$mandir
4637 SRC_PATH=$source_path
4638 ifndef MAIN_MAKEFILE
4639 SRC_PATH:=\$(SRC_PATH:.%=..%)
4640 endif
4641 CC_IDENT=$cc_ident
4642 ARCH=$arch
4643 CC=$cc
4644 CXX=$cxx
4645 AS=$as
4646 LD=$ld
4647 DEPCC=$dep_cc
4648 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4649 DEPAS=$as
4650 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4651 YASM=$yasmexe
4652 DEPYASM=$yasmexe
4653 AR=$ar
4654 ARFLAGS=$arflags
4655 AR_O=$ar_o
4656 RANLIB=$ranlib
4657 CP=cp -p
4658 LN_S=$ln_s
4659 STRIP=$strip
4660 CPPFLAGS=$CPPFLAGS
4661 CFLAGS=$CFLAGS
4662 CXXFLAGS=$CXXFLAGS
4663 ASFLAGS=$ASFLAGS
4664 AS_C=$AS_C
4665 AS_O=$AS_O
4666 CC_C=$CC_C
4667 CC_E=$CC_E
4668 CC_O=$CC_O
4669 CXX_C=$CXX_C
4670 CXX_O=$CXX_O
4671 LD_O=$LD_O
4672 LD_LIB=$LD_LIB
4673 LD_PATH=$LD_PATH
4674 DLLTOOL=$dlltool
4675 LDFLAGS=$LDFLAGS
4676 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4677 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4678 YASMFLAGS=$YASMFLAGS
4679 BUILDSUF=$build_suffix
4680 PROGSSUF=$progs_suffix
4681 FULLNAME=$FULLNAME
4682 LIBPREF=$LIBPREF
4683 LIBSUF=$LIBSUF
4684 LIBNAME=$LIBNAME
4685 SLIBPREF=$SLIBPREF
4686 SLIBSUF=$SLIBSUF
4687 EXESUF=$EXESUF
4688 EXTRA_VERSION=$extra_version
4689 CCDEP=$CCDEP
4690 CXXDEP=$CXXDEP
4691 CCDEP_FLAGS=$CCDEP_FLAGS
4692 ASDEP=$ASDEP
4693 ASDEP_FLAGS=$ASDEP_FLAGS
4694 CC_DEPFLAGS=$CC_DEPFLAGS
4695 AS_DEPFLAGS=$AS_DEPFLAGS
4696 HOSTCC=$host_cc
4697 HOSTLD=$host_ld
4698 HOSTCFLAGS=$host_cflags
4699 HOSTCPPFLAGS=$host_cppflags
4700 HOSTEXESUF=$HOSTEXESUF
4701 HOSTLDFLAGS=$host_ldflags
4702 HOSTLIBS=$host_libs
4703 DEPHOSTCC=$host_cc
4704 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4705 HOSTCCDEP=$HOSTCCDEP
4706 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4707 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4708 HOSTCC_C=$HOSTCC_C
4709 HOSTCC_O=$HOSTCC_O
4710 HOSTLD_O=$HOSTLD_O
4711 TARGET_EXEC=$target_exec $target_exec_args
4712 TARGET_PATH=$target_path
4713 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4714 LIBS-ffplay=$sdl_libs
4715 CFLAGS-ffplay=$sdl_cflags
4716 ZLIB=$($ldflags_filter -lz)
4717 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4718 EXTRALIBS=$extralibs
4719 COMPAT_OBJS=$compat_objs
4720 EXEOBJS=$exeobjs
4721 INSTALL=$install
4722 LIBTARGET=${LIBTARGET}
4723 SLIBNAME=${SLIBNAME}
4724 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4725 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4726 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4727 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4728 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4729 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4730 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4731 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4732 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4733 NOREDZONE_FLAGS=$noredzone_flags
4734 EOF
4735
4736 get_version(){
4737     lcname=lib${1}
4738     name=$(toupper $lcname)
4739     file=$source_path/$lcname/version.h
4740     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4741     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4742     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4743     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4744     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4745 }
4746
4747 map 'get_version $v' $LIBRARY_LIST
4748
4749 cat > $TMPH <<EOF
4750 /* Automatically generated by configure - do not modify! */
4751 #ifndef FFMPEG_CONFIG_H
4752 #define FFMPEG_CONFIG_H
4753 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4754 #define FFMPEG_LICENSE "$(c_escape $license)"
4755 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4756 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4757 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4758 #define av_restrict $_restrict
4759 #define EXTERN_PREFIX "${extern_prefix}"
4760 #define EXTERN_ASM ${extern_prefix}
4761 #define SLIBSUF "$SLIBSUF"
4762 #define HAVE_MMX2 HAVE_MMXEXT
4763 EOF
4764
4765 test -n "$assert_level" &&
4766     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4767
4768 test -n "$malloc_prefix" &&
4769     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4770
4771 if enabled yasm; then
4772     append config_files $TMPASM
4773     printf '' >$TMPASM
4774 fi
4775
4776 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4777
4778
4779 mkdir -p doc
4780 echo "@c auto-generated by configure" > doc/config.texi
4781
4782 print_config ARCH_   "$config_files" $ARCH_LIST
4783 print_config HAVE_   "$config_files" $HAVE_LIST
4784 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4785                                      $CONFIG_EXTRA      \
4786                                      $ALL_COMPONENTS    \
4787
4788 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4789 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4790
4791 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4792 cp_if_changed $TMPH config.h
4793 touch .config
4794
4795 enabled yasm && cp_if_changed $TMPASM config.asm
4796
4797 cat > $TMPH <<EOF
4798 /* Generated by ffconf */
4799 #ifndef AVUTIL_AVCONFIG_H
4800 #define AVUTIL_AVCONFIG_H
4801 EOF
4802
4803 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4804
4805 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4806
4807 cp_if_changed $TMPH libavutil/avconfig.h
4808
4809 if test -n "$WARNINGS"; then
4810     printf "\n$WARNINGS"
4811     enabled fatal_warnings && exit 1
4812 fi
4813
4814 # build pkg-config files
4815
4816 pkgconfig_generate(){
4817     name=$1
4818     shortname=${name#lib}${build_suffix}
4819     comment=$2
4820     version=$3
4821     libs=$4
4822     requires=$5
4823     enabled ${name#lib} || return 0
4824     mkdir -p $name
4825     cat <<EOF > $name/$name${build_suffix}.pc
4826 prefix=$prefix
4827 exec_prefix=\${prefix}
4828 libdir=$libdir
4829 includedir=$incdir
4830
4831 Name: $name
4832 Description: $comment
4833 Version: $version
4834 Requires: $(enabled shared || echo $requires)
4835 Requires.private: $(enabled shared && echo $requires)
4836</