avformat/mov: Disallow ".." in dref unless use_absolute_path is set
[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     as_object_arch
1419     asm_mod_q
1420     asm_mod_y
1421     asm_types_h
1422     atomic_cas_ptr
1423     atomics_native
1424     attribute_may_alias
1425     attribute_packed
1426     cdio_paranoia_h
1427     cdio_paranoia_paranoia_h
1428     CL_cl_h
1429     clock_gettime
1430     closesocket
1431     CommandLineToArgvW
1432     cpunop
1433     CryptGenRandom
1434     dcbzl
1435     dev_bktr_ioctl_bt848_h
1436     dev_bktr_ioctl_meteor_h
1437     dev_ic_bt8xx_h
1438     dev_video_bktr_ioctl_bt848_h
1439     dev_video_meteor_ioctl_meteor_h
1440     direct_h
1441     dlfcn_h
1442     dlopen
1443     dos_paths
1444     dxva_h
1445     ebp_available
1446     ebx_available
1447     fast_64bit
1448     fast_clz
1449     fast_cmov
1450     fcntl
1451     fork
1452     getaddrinfo
1453     gethrtime
1454     getopt
1455     GetProcessAffinityMask
1456     GetProcessMemoryInfo
1457     GetProcessTimes
1458     GetSystemTimeAsFileTime
1459     getrusage
1460     getservbyport
1461     gettimeofday
1462     glob
1463     gnu_as
1464     gsm_h
1465     i686
1466     ibm_asm
1467     inet_aton
1468     io_h
1469     isatty
1470     jack_port_get_latency_range
1471     kbhit
1472     ldbrx
1473     libdc1394_1
1474     libdc1394_2
1475     local_aligned_16
1476     local_aligned_8
1477     localtime_r
1478     loongson
1479     lzo1x_999_compress
1480     machine_ioctl_bt848_h
1481     machine_ioctl_meteor_h
1482     machine_rw_barrier
1483     makeinfo
1484     malloc_h
1485     MapViewOfFile
1486     memalign
1487     MemoryBarrier
1488     mkstemp
1489     mm_empty
1490     mmap
1491     mprotect
1492     msvcrt
1493     nanosleep
1494     openjpeg_1_5_openjpeg_h
1495     PeekNamedPipe
1496     perl
1497     pod2man
1498     poll_h
1499     posix_memalign
1500     pthread_cancel
1501     rdtsc
1502     rsync_contimeout
1503     sched_getaffinity
1504     sdl
1505     SetConsoleTextAttribute
1506     setmode
1507     setrlimit
1508     Sleep
1509     sndio_h
1510     socklen_t
1511     soundcard_h
1512     strerror_r
1513     struct_addrinfo
1514     struct_group_source_req
1515     struct_ip_mreq_source
1516     struct_ipv6_mreq
1517     struct_pollfd
1518     struct_rusage_ru_maxrss
1519     struct_sctp_event_subscribe
1520     struct_sockaddr_in6
1521     struct_sockaddr_sa_len
1522     struct_sockaddr_storage
1523     struct_stat_st_mtim_tv_nsec
1524     struct_v4l2_frmivalenum_discrete
1525     symver_asm_label
1526     symver_gnu_asm
1527     sync_val_compare_and_swap
1528     sysconf
1529     sysctl
1530     sys_mman_h
1531     sys_param_h
1532     sys_resource_h
1533     sys_select_h
1534     sys_soundcard_h
1535     sys_time_h
1536     sys_videoio_h
1537     termios_h
1538     texi2html
1539     threads
1540     unistd_h
1541     usleep
1542     vfp_args
1543     VirtualAlloc
1544     windows_h
1545     winsock2_h
1546     xform_asm
1547     xmm_clobbers
1548 "
1549
1550 # options emitted with CONFIG_ prefix but not available on the command line
1551 CONFIG_EXTRA="
1552     aandcttables
1553     ac3dsp
1554     audio_frame_queue
1555     dsputil
1556     frame_thread_encoder
1557     gcrypt
1558     golomb
1559     gplv3
1560     h264chroma
1561     h264dsp
1562     h264pred
1563     h264qpel
1564     hpeldsp
1565     huffman
1566     lgplv3
1567     lpc
1568     mpegaudio
1569     mpegaudiodsp
1570     mpegvideo
1571     mpegvideoenc
1572     nettle
1573     rangecoder
1574     rtpdec
1575     rtpenc_chain
1576     sinewin
1577     videodsp
1578     vp3dsp
1579 "
1580
1581 CMDLINE_SELECT="
1582     $ARCH_EXT_LIST
1583     $CONFIG_LIST
1584     $HAVE_LIST_CMDLINE
1585     $THREADS_LIST
1586     asm
1587     cross_compile
1588     debug
1589     extra_warnings
1590     logging
1591     lto
1592     optimizations
1593     stripping
1594 "
1595
1596 PATHS_LIST='
1597     bindir
1598     datadir
1599     incdir
1600     libdir
1601     mandir
1602     prefix
1603     shlibdir
1604 '
1605
1606 CMDLINE_SET="
1607     $PATHS_LIST
1608     ar
1609     arch
1610     as
1611     assert_level
1612     build_suffix
1613     cc
1614     cpu
1615     cross_prefix
1616     cxx
1617     dep_cc
1618     extra_version
1619     host_cc
1620     host_cflags
1621     host_ld
1622     host_ldflags
1623     host_libs
1624     host_os
1625     install
1626     ld
1627     logfile
1628     malloc_prefix
1629     nm
1630     optflags
1631     pkg_config
1632     progs_suffix
1633     random_seed
1634     samples
1635     strip
1636     sysinclude
1637     sysroot
1638     target_exec
1639     target_os
1640     target_path
1641     target_samples
1642     toolchain
1643     valgrind
1644     yasmexe
1645 "
1646
1647 CMDLINE_APPEND="
1648     extra_cflags
1649     extra_cxxflags
1650     host_cppflags
1651 "
1652
1653 # code dependency declarations
1654
1655 # architecture extensions
1656
1657 armv5te_deps="arm"
1658 armv6_deps="arm"
1659 armv6t2_deps="arm"
1660 neon_deps="arm"
1661 vfp_deps="arm"
1662 vfpv3_deps="vfp"
1663
1664 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1665
1666 mipsfpu_deps="mips"
1667 mips32r2_deps="mips"
1668 mipsdspr1_deps="mips"
1669 mipsdspr2_deps="mips"
1670
1671 altivec_deps="ppc"
1672 ppc4xx_deps="ppc"
1673
1674 vis_deps="sparc"
1675
1676 x86_64_suggest="fast_cmov i686"
1677
1678 amd3dnow_deps="mmx"
1679 amd3dnowext_deps="amd3dnow"
1680 mmx_deps="x86"
1681 mmxext_deps="mmx"
1682 sse_deps="mmxext"
1683 sse2_deps="sse"
1684 sse3_deps="sse2"
1685 ssse3_deps="sse3"
1686 sse4_deps="ssse3"
1687 sse42_deps="sse4"
1688 avx_deps="sse42"
1689 fma4_deps="avx"
1690
1691 mmx_external_deps="yasm"
1692 mmx_inline_deps="inline_asm"
1693 mmx_suggest="mmx_external mmx_inline"
1694
1695 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1696     eval dep=\$${ext}_deps
1697     eval ${ext}_external_deps='"${dep}_external"'
1698     eval ${ext}_inline_deps='"${dep}_inline"'
1699     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1700 done
1701
1702 aligned_stack_if_any="ppc x86"
1703 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1704 fast_clz_if_any="alpha avr32 mips ppc x86"
1705 fast_unaligned_if_any="ppc x86"
1706
1707 inline_asm_deps="!tms470"
1708 need_memalign="altivec neon sse"
1709
1710 symver_if_any="symver_asm_label symver_gnu_asm"
1711
1712 log2_deps="!msvcrt"
1713
1714 # subsystems
1715 dct_select="rdft"
1716 error_resilience_select="dsputil"
1717 frame_thread_encoder_deps="encoders threads"
1718 lpc_select="dsputil"
1719 mdct_select="fft"
1720 rdft_select="fft"
1721 mpegaudio_select="mpegaudiodsp"
1722 mpegaudiodsp_select="dct"
1723 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1724 mpegvideoenc_select="mpegvideo"
1725
1726 # decoders / encoders
1727 aac_decoder_select="mdct sinewin"
1728 aac_encoder_select="audio_frame_queue mdct sinewin"
1729 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1730 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1731 ac3_encoder_select="mdct ac3dsp dsputil"
1732 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1733 aic_decoder_select="dsputil golomb"
1734 alac_encoder_select="lpc"
1735 als_decoder_select="dsputil"
1736 amrnb_decoder_select="lsp"
1737 amrwb_decoder_select="lsp"
1738 amv_decoder_select="dsputil hpeldsp"
1739 amv_encoder_select="aandcttables"
1740 ape_decoder_select="dsputil"
1741 asv1_decoder_select="dsputil"
1742 asv1_encoder_select="dsputil"
1743 asv2_decoder_select="dsputil"
1744 asv2_encoder_select="dsputil"
1745 atrac1_decoder_select="mdct sinewin"
1746 atrac3_decoder_select="mdct"
1747 bink_decoder_select="dsputil hpeldsp"
1748 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1749 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1750 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1751 cllc_decoder_select="dsputil"
1752 comfortnoise_encoder_select="lpc"
1753 cook_decoder_select="dsputil mdct sinewin"
1754 cscd_decoder_select="lzo"
1755 cscd_decoder_suggest="zlib"
1756 dca_decoder_select="mdct"
1757 dirac_decoder_select="dsputil dwt golomb videodsp"
1758 dnxhd_decoder_select="dsputil"
1759 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1760 dvvideo_decoder_select="dsputil"
1761 dvvideo_encoder_select="dsputil"
1762 dxa_decoder_select="zlib"
1763 eac3_decoder_select="ac3_decoder"
1764 eac3_encoder_select="ac3_encoder"
1765 eamad_decoder_select="aandcttables dsputil mpegvideo"
1766 eatgq_decoder_select="aandcttables"
1767 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1768 exr_decoder_select="zlib"
1769 ffv1_decoder_select="dsputil golomb rangecoder"
1770 ffv1_encoder_select="dsputil rangecoder"
1771 ffvhuff_decoder_select="dsputil"
1772 ffvhuff_encoder_select="dsputil huffman"
1773 flac_decoder_select="golomb"
1774 flac_encoder_select="dsputil golomb lpc"
1775 flashsv_decoder_select="zlib"
1776 flashsv_encoder_select="zlib"
1777 flashsv2_encoder_select="zlib"
1778 flashsv2_decoder_select="zlib"
1779 flv_decoder_select="h263_decoder"
1780 flv_encoder_select="h263_encoder"
1781 fourxm_decoder_select="dsputil"
1782 fraps_decoder_select="dsputil huffman"
1783 g2m_decoder_select="dsputil zlib"
1784 g729_decoder_select="dsputil"
1785 h261_decoder_select="error_resilience mpegvideo"
1786 h261_encoder_select="aandcttables mpegvideoenc"
1787 h263_decoder_select="error_resilience h263_parser mpegvideo"
1788 h263_encoder_select="aandcttables mpegvideoenc"
1789 h263i_decoder_select="h263_decoder"
1790 h263p_encoder_select="h263_encoder"
1791 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1792 h264_decoder_suggest="error_resilience"
1793 huffyuv_decoder_select="dsputil"
1794 huffyuv_encoder_select="dsputil huffman"
1795 iac_decoder_select="dsputil fft mdct sinewin"
1796 imc_decoder_select="dsputil fft mdct sinewin"
1797 indeo3_decoder_select="hpeldsp"
1798 interplay_video_decoder_select="hpeldsp"
1799 jpegls_decoder_select="dsputil golomb hpeldsp"
1800 jpegls_encoder_select="golomb"
1801 jv_decoder_select="dsputil"
1802 lagarith_decoder_select="dsputil"
1803 ljpeg_encoder_select="aandcttables mpegvideoenc"
1804 loco_decoder_select="golomb"
1805 mdec_decoder_select="dsputil error_resilience mpegvideo"
1806 mimic_decoder_select="dsputil hpeldsp"
1807 mjpeg_decoder_select="dsputil hpeldsp"
1808 mjpegb_decoder_select="dsputil hpeldsp"
1809 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1810 mlp_decoder_select="dsputil mlp_parser"
1811 motionpixels_decoder_select="dsputil"
1812 mp1_decoder_select="mpegaudio"
1813 mp1float_decoder_select="mpegaudio"
1814 mp2_decoder_select="mpegaudio"
1815 mp2float_decoder_select="mpegaudio"
1816 mp3_decoder_select="mpegaudio"
1817 mp3adu_decoder_select="mpegaudio"
1818 mp3adufloat_decoder_select="mpegaudio"
1819 mp3float_decoder_select="mpegaudio"
1820 mp3on4_decoder_select="mpegaudio"
1821 mp3on4float_decoder_select="mpegaudio"
1822 mpc7_decoder_select="dsputil mpegaudiodsp"
1823 mpc8_decoder_select="dsputil mpegaudiodsp"
1824 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1825 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1826 mpeg1video_decoder_select="error_resilience mpegvideo"
1827 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1828 mpeg2video_decoder_select="error_resilience mpegvideo"
1829 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1830 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1831 mpeg4_encoder_select="h263_encoder"
1832 msmpeg4v1_decoder_select="h263_decoder"
1833 msmpeg4v2_decoder_select="h263_decoder"
1834 msmpeg4v2_encoder_select="h263_encoder"
1835 msmpeg4v3_decoder_select="h263_decoder"
1836 msmpeg4v3_encoder_select="h263_encoder"
1837 mss2_decoder_select="error_resilience vc1_decoder"
1838 mxpeg_decoder_select="dsputil hpeldsp"
1839 nellymoser_decoder_select="mdct sinewin"
1840 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1841 nuv_decoder_select="dsputil lzo"
1842 png_decoder_select="zlib"
1843 png_encoder_select="dsputil zlib"
1844 prores_decoder_select="dsputil"
1845 prores_encoder_select="dsputil"
1846 qcelp_decoder_select="lsp"
1847 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1848 ra_144_encoder_select="audio_frame_queue lpc"
1849 ralf_decoder_select="golomb"
1850 rtjpeg_decoder_select="dsputil"
1851 rv10_decoder_select="error_resilience h263_decoder"
1852 rv10_encoder_select="h263_encoder"
1853 rv20_decoder_select="error_resilience h263_decoder"
1854 rv20_encoder_select="h263_encoder"
1855 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1856 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1857 shorten_decoder_select="golomb"
1858 sipr_decoder_select="lsp"
1859 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1860 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1861 sonic_decoder_select="golomb"
1862 sonic_encoder_select="golomb"
1863 sonic_ls_encoder_select="golomb"
1864 sp5x_decoder_select="dsputil hpeldsp"
1865 svq1_decoder_select="hpeldsp"
1866 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1867 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1868 svq3_decoder_suggest="error_resilience zlib"
1869 tak_decoder_select="dsputil"
1870 theora_decoder_select="vp3_decoder"
1871 tiff_decoder_suggest="zlib"
1872 tiff_encoder_suggest="zlib"
1873 thp_decoder_select="dsputil hpeldsp"
1874 truehd_decoder_select="mlp_parser"
1875 truemotion2_decoder_select="dsputil"
1876 truespeech_decoder_select="dsputil"
1877 tscc_decoder_select="zlib"
1878 twinvq_decoder_select="mdct lsp sinewin"
1879 utvideo_decoder_select="dsputil"
1880 utvideo_encoder_select="dsputil huffman"
1881 vble_decoder_select="dsputil"
1882 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1883 vc1image_decoder_select="vc1_decoder"
1884 vorbis_decoder_select="mdct"
1885 vorbis_encoder_select="mdct"
1886 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1887 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1888 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1889 vp6a_decoder_select="vp6_decoder"
1890 vp6f_decoder_select="vp6_decoder"
1891 vp8_decoder_select="h264pred videodsp"
1892 webp_decoder_select="vp8_decoder"
1893 wmapro_decoder_select="mdct sinewin"
1894 wmav1_decoder_select="mdct sinewin"
1895 wmav1_encoder_select="mdct sinewin"
1896 wmav2_decoder_select="mdct sinewin"
1897 wmav2_encoder_select="mdct sinewin"
1898 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1899 wmv1_decoder_select="h263_decoder"
1900 wmv1_encoder_select="h263_encoder"
1901 wmv2_decoder_select="h263_decoder videodsp"
1902 wmv2_encoder_select="h263_encoder"
1903 wmv3_decoder_select="vc1_decoder"
1904 wmv3image_decoder_select="wmv3_decoder"
1905 zerocodec_decoder_select="zlib"
1906 zlib_decoder_select="zlib"
1907 zlib_encoder_select="zlib"
1908 zmbv_decoder_select="zlib"
1909 zmbv_encoder_select="zlib"
1910
1911 # hardware accelerators
1912 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1913 dxva2_deps="dxva2api_h"
1914 vaapi_deps="va_va_h"
1915 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1916 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1917 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1918
1919 h263_vaapi_hwaccel_deps="vaapi"
1920 h263_vaapi_hwaccel_select="h263_decoder"
1921 h263_vdpau_hwaccel_deps="vdpau"
1922 h263_vdpau_hwaccel_select="h263_decoder"
1923 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1924 h264_dxva2_hwaccel_deps="dxva2"
1925 h264_dxva2_hwaccel_select="h264_decoder"
1926 h264_vaapi_hwaccel_deps="vaapi"
1927 h264_vaapi_hwaccel_select="h264_decoder"
1928 h264_vda_decoder_deps="vda"
1929 h264_vda_decoder_select="h264_decoder"
1930 h264_vda_hwaccel_deps="vda"
1931 h264_vda_hwaccel_select="h264_decoder"
1932 h264_vdpau_decoder_deps="vdpau"
1933 h264_vdpau_decoder_select="h264_decoder"
1934 h264_vdpau_hwaccel_deps="vdpau"
1935 h264_vdpau_hwaccel_select="h264_decoder"
1936 mpeg_vdpau_decoder_deps="vdpau"
1937 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1938 mpeg1_vdpau_decoder_deps="vdpau"
1939 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1940 mpeg1_vdpau_hwaccel_deps="vdpau"
1941 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1942 mpeg2_crystalhd_decoder_select="crystalhd"
1943 mpeg2_dxva2_hwaccel_deps="dxva2"
1944 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1945 mpeg2_vaapi_hwaccel_deps="vaapi"
1946 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1947 mpeg2_vdpau_hwaccel_deps="vdpau"
1948 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1949 mpeg4_crystalhd_decoder_select="crystalhd"
1950 mpeg4_vaapi_hwaccel_deps="vaapi"
1951 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1952 mpeg4_vdpau_decoder_deps="vdpau"
1953 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1954 mpeg4_vdpau_hwaccel_deps="vdpau"
1955 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1956 msmpeg4_crystalhd_decoder_select="crystalhd"
1957 vc1_crystalhd_decoder_select="crystalhd"
1958 vc1_dxva2_hwaccel_deps="dxva2"
1959 vc1_dxva2_hwaccel_select="vc1_decoder"
1960 vc1_vaapi_hwaccel_deps="vaapi"
1961 vc1_vaapi_hwaccel_select="vc1_decoder"
1962 vc1_vdpau_decoder_deps="vdpau"
1963 vc1_vdpau_decoder_select="vc1_decoder"
1964 vc1_vdpau_hwaccel_deps="vdpau"
1965 vc1_vdpau_hwaccel_select="vc1_decoder"
1966 wmv3_crystalhd_decoder_select="crystalhd"
1967 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1968 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1969 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1970 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1971
1972 # parsers
1973 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1974 mpeg4video_parser_select="error_resilience mpegvideo"
1975 mpegvideo_parser_select="error_resilience mpegvideo"
1976 vc1_parser_select="mpegvideo"
1977
1978 # external libraries
1979 libaacplus_encoder_deps="libaacplus"
1980 libcelt_decoder_deps="libcelt"
1981 libfaac_encoder_deps="libfaac"
1982 libfaac_encoder_select="audio_frame_queue"
1983 libfdk_aac_encoder_deps="libfdk_aac"
1984 libfdk_aac_encoder_select="audio_frame_queue"
1985 libgme_demuxer_deps="libgme"
1986 libgsm_decoder_deps="libgsm"
1987 libgsm_encoder_deps="libgsm"
1988 libgsm_ms_decoder_deps="libgsm"
1989 libgsm_ms_encoder_deps="libgsm"
1990 libilbc_decoder_deps="libilbc"
1991 libilbc_encoder_deps="libilbc"
1992 libmodplug_demuxer_deps="libmodplug"
1993 libmp3lame_encoder_deps="libmp3lame"
1994 libmp3lame_encoder_select="audio_frame_queue"
1995 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1996 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1997 libopencore_amrnb_encoder_select="audio_frame_queue"
1998 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1999 libopenjpeg_decoder_deps="libopenjpeg"
2000 libopenjpeg_encoder_deps="libopenjpeg"
2001 libopus_decoder_deps="libopus"
2002 libopus_encoder_deps="libopus"
2003 libopus_encoder_select="audio_frame_queue"
2004 libquvi_demuxer_deps="libquvi"
2005 libschroedinger_decoder_deps="libschroedinger"
2006 libschroedinger_encoder_deps="libschroedinger"
2007 libshine_encoder_deps="libshine"
2008 libshine_encoder_select="audio_frame_queue"
2009 libspeex_decoder_deps="libspeex"
2010 libspeex_encoder_deps="libspeex"
2011 libspeex_encoder_select="audio_frame_queue"
2012 libstagefright_h264_decoder_deps="libstagefright_h264"
2013 libtheora_encoder_deps="libtheora"
2014 libtwolame_encoder_deps="libtwolame"
2015 libvo_aacenc_encoder_deps="libvo_aacenc"
2016 libvo_aacenc_encoder_select="audio_frame_queue"
2017 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2018 libvorbis_decoder_deps="libvorbis"
2019 libvorbis_encoder_deps="libvorbis"
2020 libvorbis_encoder_select="audio_frame_queue"
2021 libvpx_vp8_decoder_deps="libvpx"
2022 libvpx_vp8_encoder_deps="libvpx"
2023 libvpx_vp9_decoder_deps="libvpx"
2024 libvpx_vp9_encoder_deps="libvpx"
2025 libwavpack_encoder_deps="libwavpack"
2026 libx264_encoder_deps="libx264"
2027 libx264rgb_encoder_deps="libx264"
2028 libxavs_encoder_deps="libxavs"
2029 libxvid_encoder_deps="libxvid"
2030 libutvideo_decoder_deps="libutvideo"
2031 libutvideo_encoder_deps="libutvideo"
2032
2033 # demuxers / muxers
2034 ac3_demuxer_select="ac3_parser"
2035 asf_stream_muxer_select="asf_muxer"
2036 avisynth_demuxer_deps="avisynth"
2037 dirac_demuxer_select="dirac_parser"
2038 dts_demuxer_select="dca_parser"
2039 dtshd_demuxer_select="dca_parser"
2040 eac3_demuxer_select="ac3_parser"
2041 f4v_muxer_select="mov_muxer"
2042 flac_demuxer_select="flac_parser"
2043 ipod_muxer_select="mov_muxer"
2044 ismv_muxer_select="mov_muxer"
2045 libnut_demuxer_deps="libnut"
2046 libnut_muxer_deps="libnut"
2047 matroska_audio_muxer_select="matroska_muxer"
2048 matroska_demuxer_suggest="bzlib lzo zlib"
2049 mov_demuxer_suggest="zlib"
2050 mov_muxer_select="rtpenc_chain"
2051 mp3_demuxer_select="mpegaudio_parser"
2052 mp4_muxer_select="mov_muxer"
2053 mpegts_muxer_select="adts_muxer latm_muxer"
2054 mpegtsraw_demuxer_select="mpegts_demuxer"
2055 mxf_d10_muxer_select="mxf_muxer"
2056 ogg_demuxer_select="golomb"
2057 psp_muxer_select="mov_muxer"
2058 rtp_demuxer_select="sdp_demuxer"
2059 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2060 rtsp_demuxer_select="http_protocol rtpdec"
2061 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2062 sap_demuxer_select="sdp_demuxer"
2063 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2064 sdp_demuxer_select="rtpdec"
2065 smoothstreaming_muxer_select="ismv_muxer"
2066 spdif_muxer_select="aac_parser"
2067 tak_demuxer_select="tak_parser"
2068 tg2_muxer_select="mov_muxer"
2069 tgp_muxer_select="mov_muxer"
2070 vobsub_demuxer_select="mpegps_demuxer"
2071 w64_demuxer_deps="wav_demuxer"
2072 w64_muxer_deps="wav_muxer"
2073
2074 # indevs / outdevs
2075 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2076 alsa_outdev_deps="alsa_asoundlib_h"
2077 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2078 caca_outdev_deps="libcaca"
2079 dshow_indev_deps="IBaseFilter"
2080 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2081 dv1394_indev_deps="dv1394 dv_demuxer"
2082 fbdev_indev_deps="linux_fb_h"
2083 iec61883_indev_deps="libiec61883"
2084 jack_indev_deps="jack_jack_h sem_timedwait"
2085 lavfi_indev_deps="avfilter"
2086 libcdio_indev_deps="libcdio"
2087 libdc1394_indev_deps="libdc1394"
2088 libv4l2_indev_deps="libv4l2"
2089 openal_indev_deps="openal"
2090 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2091 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2092 pulse_indev_deps="libpulse"
2093 sdl_outdev_deps="sdl"
2094 sndio_indev_deps="sndio_h"
2095 sndio_outdev_deps="sndio_h"
2096 v4l_indev_deps="linux_videodev_h"
2097 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2098 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2099 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2100 vfwcap_indev_extralibs="-lavicap32"
2101 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2102 xv_outdev_extralibs="-lXv -lX11 -lXext"
2103 x11grab_indev_deps="x11grab"
2104
2105 # protocols
2106 bluray_protocol_deps="libbluray"
2107 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2108 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2109 ffrtmpcrypt_protocol_select="tcp_protocol"
2110 ffrtmphttp_protocol_deps="!librtmp_protocol"
2111 ffrtmphttp_protocol_select="http_protocol"
2112 ftp_protocol_select="tcp_protocol"
2113 gopher_protocol_select="network"
2114 httpproxy_protocol_select="tcp_protocol"
2115 http_protocol_select="tcp_protocol"
2116 https_protocol_select="tls_protocol"
2117 librtmp_protocol_deps="librtmp"
2118 librtmpe_protocol_deps="librtmp"
2119 librtmps_protocol_deps="librtmp"
2120 librtmpt_protocol_deps="librtmp"
2121 librtmpte_protocol_deps="librtmp"
2122 mmsh_protocol_select="http_protocol"
2123 mmst_protocol_select="network"
2124 rtmp_protocol_deps="!librtmp_protocol"
2125 rtmp_protocol_select="tcp_protocol"
2126 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2127 rtmps_protocol_deps="!librtmp_protocol"
2128 rtmps_protocol_select="tls_protocol"
2129 rtmpt_protocol_select="ffrtmphttp_protocol"
2130 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2131 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2132 rtp_protocol_select="udp_protocol"
2133 sctp_protocol_deps="struct_sctp_event_subscribe"
2134 sctp_protocol_select="network"
2135 srtp_protocol_select="rtp_protocol"
2136 tcp_protocol_select="network"
2137 tls_protocol_deps_any="openssl gnutls"
2138 tls_protocol_select="tcp_protocol"
2139 udp_protocol_select="network"
2140
2141 # filters
2142 aconvert_filter_deps="swresample"
2143 amovie_filter_deps="avcodec avformat"
2144 aresample_filter_deps="swresample"
2145 ass_filter_deps="libass"
2146 asyncts_filter_deps="avresample"
2147 atempo_filter_deps="avcodec rdft"
2148 azmq_filter_deps="libzmq"
2149 blackframe_filter_deps="gpl"
2150 boxblur_filter_deps="gpl"
2151 colormatrix_filter_deps="gpl"
2152 cropdetect_filter_deps="gpl"
2153 dctdnoiz_filter_deps="avcodec fft"
2154 delogo_filter_deps="gpl"
2155 deshake_filter_deps="avcodec"
2156 deshake_filter_select="dsputil"
2157 drawtext_filter_deps="libfreetype"
2158 ebur128_filter_deps="gpl"
2159 flite_filter_deps="libflite"
2160 frei0r_filter_deps="frei0r dlopen"
2161 frei0r_filter_extralibs='$ldl'
2162 frei0r_src_filter_deps="frei0r dlopen"
2163 frei0r_src_filter_extralibs='$ldl'
2164 geq_filter_deps="gpl"
2165 histeq_filter_deps="gpl"
2166 hqdn3d_filter_deps="gpl"
2167 hue_filter_deps="gpl"
2168 interlace_filter_deps="gpl"
2169 kerndeint_filter_deps="gpl"
2170 mcdeint_filter_deps="avcodec gpl"
2171 movie_filter_deps="avcodec avformat"
2172 mp_filter_deps="gpl avcodec swscale inline_asm"
2173 mpdecimate_filter_deps="gpl avcodec"
2174 mptestsrc_filter_deps="gpl"
2175 negate_filter_deps="lut_filter"
2176 noise_filter_deps="gpl"
2177 resample_filter_deps="avresample"
2178 ocv_filter_deps="libopencv"
2179 owdenoise_filter_deps="gpl"
2180 pan_filter_deps="swresample"
2181 pp_filter_deps="gpl postproc"
2182 removelogo_filter_deps="avcodec avformat swscale"
2183 sab_filter_deps="gpl swscale"
2184 scale_filter_deps="swscale"
2185 smartblur_filter_deps="gpl swscale"
2186 showspectrum_filter_deps="avcodec rdft"
2187 spp_filter_deps="gpl avcodec fft"
2188 stereo3d_filter_deps="gpl"
2189 subtitles_filter_deps="avformat avcodec libass"
2190 super2xsai_filter_deps="gpl"
2191 tinterlace_filter_deps="gpl"
2192 vidstabdetect_filter_deps="libvidstab"
2193 vidstabtransform_filter_deps="libvidstab"
2194 yadif_filter_deps="gpl"
2195 pixfmts_super2xsai_test_deps="super2xsai_filter"
2196 tinterlace_merge_test_deps="tinterlace_filter"
2197 tinterlace_pad_test_deps="tinterlace_filter"
2198 zmq_filter_deps="libzmq"
2199
2200 # libraries
2201 avcodec_deps="avutil"
2202 avdevice_deps="avutil avcodec avformat"
2203 avfilter_deps="avutil"
2204 avformat_deps="avutil avcodec"
2205 avresample_deps="avutil"
2206 postproc_deps="avutil gpl"
2207 swscale_deps="avutil"
2208
2209 # programs
2210 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2211 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2212                null_filter
2213                setpts_filter trim_filter"
2214 ffplay_deps="avcodec avformat swscale swresample sdl"
2215 ffplay_select="rdft crop_filter"
2216 ffprobe_deps="avcodec avformat"
2217 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2218 ffserver_extralibs='$ldl'
2219
2220 # documentation
2221 podpages_deps="perl"
2222 manpages_deps="perl pod2man"
2223 htmlpages_deps="texi2html"
2224 txtpages_deps="makeinfo"
2225 doc_deps_any="manpages htmlpages podpages txtpages"
2226
2227 # default parameters
2228
2229 logfile="config.log"
2230
2231 # installation paths
2232 prefix_default="/usr/local"
2233 bindir_default='${prefix}/bin'
2234 datadir_default='${prefix}/share/ffmpeg'
2235 incdir_default='${prefix}/include'
2236 libdir_default='${prefix}/lib'
2237 mandir_default='${prefix}/share/man'
2238 shlibdir_default="$libdir_default"
2239
2240 # toolchain
2241 ar_default="ar"
2242 cc_default="gcc"
2243 cxx_default="g++"
2244 host_cc_default="gcc"
2245 cp_f="cp -f"
2246 install="install"
2247 ln_s="ln -s -f"
2248 nm_default="nm -g"
2249 objformat="elf"
2250 pkg_config_default=pkg-config
2251 ranlib="ranlib"
2252 strip_default="strip"
2253 yasmexe_default="yasm"
2254
2255 nogas=":"
2256
2257 # machine
2258 arch_default=$(uname -m)
2259 cpu="generic"
2260
2261 # OS
2262 target_os_default=$(tolower $(uname -s))
2263 host_os=$target_os_default
2264
2265 # configurable options
2266 enable $PROGRAM_LIST
2267 enable $DOCUMENT_LIST
2268 enable $(filter_out avresample $LIBRARY_LIST)
2269 enable stripping
2270
2271 enable asm
2272 enable debug
2273 enable doc
2274 enable optimizations
2275 enable runtime_cpudetect
2276 enable safe_bitstream_reader
2277 enable static
2278 enable swscale_alpha
2279
2280 # Enable hwaccels by default.
2281 enable dxva2 vaapi vdpau
2282
2283 # build settings
2284 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2285 FFSERVERLDFLAGS=-Wl,-E
2286 LIBPREF="lib"
2287 LIBSUF=".a"
2288 FULLNAME='$(NAME)$(BUILDSUF)'
2289 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2290 SLIBPREF="lib"
2291 SLIBSUF=".so"
2292 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2293 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2294 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2295 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2296 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2297 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2298
2299 asflags_filter=echo
2300 cflags_filter=echo
2301 ldflags_filter=echo
2302
2303 AS_C='-c'
2304 AS_O='-o $@'
2305 CC_C='-c'
2306 CC_E='-E -o $@'
2307 CC_O='-o $@'
2308 CXX_C='-c'
2309 CXX_O='-o $@'
2310 LD_O='-o $@'
2311 LD_LIB='-l%'
2312 LD_PATH='-L'
2313 HOSTCC_C='-c'
2314 HOSTCC_O='-o $@'
2315 HOSTLD_O='-o $@'
2316
2317 host_cflags='-O3 -g'
2318 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2319 host_libs='-lm'
2320 host_cflags_filter=echo
2321 host_ldflags_filter=echo
2322
2323 target_path='$(CURDIR)'
2324
2325 # since the object filename is not given with the -MM flag, the compiler
2326 # is only able to print the basename, and we must add the path ourselves
2327 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2328 DEPFLAGS='-MM'
2329
2330 # find source path
2331 if test -f configure; then
2332     source_path=.
2333 else
2334     source_path=$(cd $(dirname "$0"); pwd)
2335     echo "$source_path" | grep -q '[[:blank:]]' &&
2336         die "Out of tree builds are impossible with whitespace in source path."
2337     test -e "$source_path/config.h" &&
2338         die "Out of tree builds are impossible with config.h in source dir."
2339 fi
2340
2341 for v in "$@"; do
2342     r=${v#*=}
2343     l=${v%"$r"}
2344     r=$(sh_quote "$r")
2345     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2346 done
2347
2348 find_things(){
2349     thing=$1
2350     pattern=$2
2351     file=$source_path/$3
2352     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2353 }
2354
2355 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2356 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2357 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2358 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2359 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2360 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2361 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2362 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2363 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2364 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2365 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2366
2367 ALL_COMPONENTS="
2368     $BSF_LIST
2369     $DECODER_LIST
2370     $DEMUXER_LIST
2371     $ENCODER_LIST
2372     $FILTER_LIST
2373     $HWACCEL_LIST
2374     $INDEV_LIST
2375     $MUXER_LIST
2376     $OUTDEV_LIST
2377     $PARSER_LIST
2378     $PROTOCOL_LIST
2379 "
2380
2381 for n in $COMPONENT_LIST; do
2382     v=$(toupper ${n%s})_LIST
2383     eval enable \$$v
2384     eval ${n}_if_any="\$$v"
2385 done
2386
2387 enable $ARCH_EXT_LIST
2388
2389 die_unknown(){
2390     echo "Unknown option \"$1\"."
2391     echo "See $0 --help for available options."
2392     exit 1
2393 }
2394
2395 print_3_columns() {
2396     cat | tr ' ' '\n' | sort | pr -r -3 -t
2397 }
2398
2399 show_list() {
2400     suffix=_$1
2401     shift
2402     echo $* | sed s/$suffix//g | print_3_columns
2403     exit 0
2404 }
2405
2406 rand_list(){
2407     IFS=', '
2408     set -- $*
2409     unset IFS
2410     for thing; do
2411         comp=${thing%:*}
2412         prob=${thing#$comp}
2413         prob=${prob#:}
2414         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2415         echo "prob ${prob:-0.5}"
2416         printf '%s\n' $comp
2417     done
2418 }
2419
2420 do_random(){
2421     action=$1
2422     shift
2423     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2424     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2425 }
2426
2427 for opt do
2428     optval="${opt#*=}"
2429     case "$opt" in
2430         --extra-ldflags=*)
2431             add_ldflags $optval
2432         ;;
2433         --extra-libs=*)
2434             add_extralibs $optval
2435         ;;
2436         --disable-devices)
2437             disable $INDEV_LIST $OUTDEV_LIST
2438         ;;
2439         --enable-debug=*)
2440             debuglevel="$optval"
2441         ;;
2442         --disable-programs)
2443             disable $PROGRAM_LIST
2444         ;;
2445         --disable-everything)
2446             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2447         ;;
2448         --disable-all)
2449             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2450             disable $LIBRARY_LIST $PROGRAM_LIST doc
2451         ;;
2452         --enable-random|--disable-random)
2453             action=${opt%%-random}
2454             do_random ${action#--} $COMPONENT_LIST
2455         ;;
2456         --enable-random=*|--disable-random=*)
2457             action=${opt%%-random=*}
2458             do_random ${action#--} $optval
2459         ;;
2460         --enable-*=*|--disable-*=*)
2461             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2462             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2463             eval list=\$$(toupper $thing)_LIST
2464             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2465             list=$(filter "$name" $list)
2466             [ "$list" = "" ] && warn "Option $opt did not match anything"
2467             $action $list
2468         ;;
2469         --enable-?*|--disable-?*)
2470             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2471             if is_in $option $COMPONENT_LIST; then
2472                 test $action = disable && action=unset
2473                 eval $action \$$(toupper ${option%s})_LIST
2474             elif is_in $option $CMDLINE_SELECT; then
2475                 $action $option
2476             else
2477                 die_unknown $opt
2478             fi
2479         ;;
2480         --list-*)
2481             NAME="${opt#--list-}"
2482             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2483             NAME=${NAME%s}
2484             eval show_list $NAME \$$(toupper $NAME)_LIST
2485         ;;
2486         --help|-h) show_help
2487         ;;
2488         --fatal-warnings) enable fatal_warnings
2489         ;;
2490         *)
2491             optname="${opt%%=*}"
2492             optname="${optname#--}"
2493             optname=$(echo "$optname" | sed 's/-/_/g')
2494             if is_in $optname $CMDLINE_SET; then
2495                 eval $optname='$optval'
2496             elif is_in $optname $CMDLINE_APPEND; then
2497                 append $optname "$optval"
2498             else
2499                 die_unknown $opt
2500             fi
2501         ;;
2502     esac
2503 done
2504
2505 disabled logging && logfile=/dev/null
2506
2507 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2508 set >> $logfile
2509
2510 test -n "$cross_prefix" && enable cross_compile
2511
2512 if enabled cross_compile; then
2513     test -n "$arch" && test -n "$target_os" ||
2514         die "Must specify target arch and OS when cross-compiling"
2515 fi
2516
2517 ar_default="${cross_prefix}${ar_default}"
2518 cc_default="${cross_prefix}${cc_default}"
2519 cxx_default="${cross_prefix}${cxx_default}"
2520 nm_default="${cross_prefix}${nm_default}"
2521 pkg_config_default="${cross_prefix}${pkg_config_default}"
2522 ranlib="${cross_prefix}${ranlib}"
2523 strip_default="${cross_prefix}${strip_default}"
2524
2525 sysinclude_default="${sysroot}/usr/include"
2526
2527 test -n "$valgrind" && toolchain="valgrind-memcheck"
2528
2529 case "$toolchain" in
2530     clang-asan)
2531         cc_default="clang"
2532         add_cflags  -fsanitize=address
2533         add_ldflags -fsanitize=address
2534     ;;
2535     clang-tsan)
2536         cc_default="clang"
2537         add_cflags  -fsanitize=thread -pie
2538         add_ldflags -fsanitize=thread -pie
2539     ;;
2540     gcc-asan)
2541         cc_default="gcc"
2542         add_cflags  -fsanitize=address
2543         add_ldflags -fsanitize=address
2544     ;;
2545     gcc-tsan)
2546         cc_default="gcc"
2547         add_cflags  -fsanitize=thread -pie -fPIC
2548         add_ldflags -fsanitize=thread -pie -fPIC
2549     ;;
2550     valgrind-massif)
2551         target_exec_default=${valgrind:-"valgrind"}
2552         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"
2553     ;;
2554     valgrind-memcheck)
2555         target_exec_default=${valgrind:-"valgrind"}
2556         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2557     ;;
2558     msvc)
2559         cc_default="c99wrap cl"
2560         ld_default="c99wrap link"
2561         nm_default="dumpbin -symbols"
2562         ar_default="lib"
2563         target_os_default="win32"
2564     ;;
2565     icl)
2566         cc_default="c99wrap -noconv icl"
2567         ld_default="c99wrap xilink"
2568         nm_default="dumpbin -symbols"
2569         ar_default="xilib"
2570         target_os_default="win32"
2571     ;;
2572     gcov)
2573         add_cflags  -fprofile-arcs -ftest-coverage
2574         add_ldflags -fprofile-arcs -ftest-coverage
2575     ;;
2576     ?*)
2577         die "Unknown toolchain $toolchain"
2578     ;;
2579 esac
2580
2581 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2582 enabled cross_compile || host_cc_default=$cc
2583 set_default host_cc
2584
2585 if ! $pkg_config --version >/dev/null 2>&1; then
2586     warn "$pkg_config not found, library detection may fail."
2587     pkg_config=false
2588 fi
2589
2590 exesuf() {
2591     case $1 in
2592         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2593     esac
2594 }
2595
2596 EXESUF=$(exesuf $target_os)
2597 HOSTEXESUF=$(exesuf $host_os)
2598
2599 # set temporary file name
2600 : ${TMPDIR:=$TEMPDIR}
2601 : ${TMPDIR:=$TMP}
2602 : ${TMPDIR:=/tmp}
2603
2604 if ! check_cmd mktemp -u XXXXXX; then
2605     # simple replacement for missing mktemp
2606     # NOT SAFE FOR GENERAL USE
2607     mktemp(){
2608         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2609     }
2610 fi
2611
2612 tmpfile(){
2613     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2614         (set -C; exec > $tmp) 2>/dev/null ||
2615         die "Unable to create temporary file in $TMPDIR."
2616     append TMPFILES $tmp
2617     eval $1=$tmp
2618 }
2619
2620 trap 'rm -f -- $TMPFILES' EXIT
2621
2622 tmpfile TMPASM .asm
2623 tmpfile TMPC   .c
2624 tmpfile TMPCPP .cpp
2625 tmpfile TMPE   $EXESUF
2626 tmpfile TMPH   .h
2627 tmpfile TMPO   .o
2628 tmpfile TMPS   .S
2629 tmpfile TMPSH  .sh
2630 tmpfile TMPV   .ver
2631
2632 unset -f mktemp
2633
2634 chmod +x $TMPE
2635
2636 # make sure we can execute files in $TMPDIR
2637 cat > $TMPSH 2>> $logfile <<EOF
2638 #! /bin/sh
2639 EOF
2640 chmod +x $TMPSH >> $logfile 2>&1
2641 if ! $TMPSH >> $logfile 2>&1; then
2642     cat <<EOF
2643 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2644 variable to another directory and make sure that it is not mounted noexec.
2645 EOF
2646     die "Sanity test failed."
2647 fi
2648
2649 ccc_flags(){
2650     for flag; do
2651         case $flag in
2652             -std=c99)           echo -c99                       ;;
2653             -mcpu=*)            echo -arch ${flag#*=}           ;;
2654             -mieee)             echo -ieee                      ;;
2655             -O*|-fast)          echo $flag                      ;;
2656             -fno-math-errno)    echo -assume nomath_errno       ;;
2657             -g)                 echo -g3                        ;;
2658             -Wall)              echo -msg_enable level2         ;;
2659             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2660             -Wl,*)              echo $flag                      ;;
2661             -f*|-W*)                                            ;;
2662             *)                  echo $flag                      ;;
2663         esac
2664    done
2665 }
2666
2667 msvc_common_flags(){
2668     for flag; do
2669         case $flag in
2670             # In addition to specifying certain flags under the compiler
2671             # specific filters, they must be specified here as well or else the
2672             # generic catch all at the bottom will print the original flag.
2673             -Wall)                ;;
2674             -std=c99)             ;;
2675             # Common flags
2676             -fomit-frame-pointer) ;;
2677             -g)                   echo -Z7 ;;
2678             -fno-math-errno)      ;;
2679             -fno-common)          ;;
2680             -fno-signed-zeros)    ;;
2681             -fPIC)                ;;
2682             -mthumb)              ;;
2683             -march=*)             ;;
2684             -lz)                  echo zlib.lib ;;
2685             -lavifil32)           echo vfw32.lib ;;
2686             -lavicap32)           echo vfw32.lib user32.lib ;;
2687             -l*)                  echo ${flag#-l}.lib ;;
2688             *)                    echo $flag ;;
2689         esac
2690     done
2691 }
2692
2693 msvc_flags(){
2694     msvc_common_flags "$@"
2695     for flag; do
2696         case $flag in
2697             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2698                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2699                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2700                                        -wd4554 \
2701                                        -wd4996 -wd4273 ;;
2702         esac
2703     done
2704 }
2705
2706 icl_flags(){
2707     msvc_common_flags "$@"
2708     for flag; do
2709         case $flag in
2710             # Despite what Intel's documentation says -Wall, which is supported
2711             # on Windows, does enable remarks so disable them here.
2712             -Wall)                echo $flag -Qdiag-disable:remark ;;
2713             -std=c99)             echo -Qstd=c99 ;;
2714         esac
2715     done
2716 }
2717
2718 pgi_flags(){
2719     for flag; do
2720         case $flag in
2721             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2722             -fomit-frame-pointer) echo -Mnoframe ;;
2723             -g)                   echo -gopt ;;
2724             *)                    echo $flag ;;
2725         esac
2726     done
2727 }
2728
2729 suncc_flags(){
2730     for flag; do
2731         case $flag in
2732             -march=*|-mcpu=*)
2733                 case "${flag#*=}" in
2734                     native)                   echo -xtarget=native       ;;
2735                     v9|niagara)               echo -xarch=sparc          ;;
2736                     ultrasparc)               echo -xarch=sparcvis       ;;
2737                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2738                     i586|pentium)             echo -xchip=pentium        ;;
2739                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2740                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2741                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2742                     pentium4*)          echo -xtarget=pentium4           ;;
2743                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2744                     *-sse3)             echo -xarch=sse3                 ;;
2745                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2746                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2747                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2748                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2749                     bdver*)                    echo -xarch=avx           ;;
2750                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2751                     k8|opteron|athlon64|athlon-fx)
2752                                                echo -xarch=sse2a         ;;
2753                     athlon*)                   echo -xarch=pentium_proa  ;;
2754                 esac
2755                 ;;
2756             -std=c99)             echo -xc99              ;;
2757             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2758             -fPIC)                echo -KPIC -xcode=pic32 ;;
2759             -W*,*)                echo $flag              ;;
2760             -f*-*|-W*|-mimpure-text)                      ;;
2761             -shared)              echo -G                 ;;
2762             *)                    echo $flag              ;;
2763         esac
2764     done
2765 }
2766
2767 tms470_flags(){
2768     for flag; do
2769         case $flag in
2770             -march=*|-mcpu=*)
2771                 case "${flag#*=}" in
2772                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2773                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2774                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2775                     armv6*|arm11*)          echo -mv=6   ;;
2776                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2777                                             echo -mv=5e  ;;
2778                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2779                 esac
2780                 ;;
2781             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2782             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2783             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2784             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2785             -msoft-float)   echo --float_support=vfplib       ;;
2786             -O[0-3]|-mf=*)  echo $flag                        ;;
2787             -g)             echo -g -mn                       ;;
2788             -pds=*)         echo $flag                        ;;
2789             -D*|-I*)        echo $flag                        ;;
2790             --gcc|--abi=*)  echo $flag                        ;;
2791             -me)            echo $flag                        ;;
2792         esac
2793     done
2794 }
2795
2796 probe_cc(){
2797     pfx=$1
2798     _cc=$2
2799
2800     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2801     unset _ld_o _ldflags _ld_lib _ld_path
2802     unset _depflags _DEPCMD _DEPFLAGS
2803     _flags_filter=echo
2804
2805     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
2806         true # no-op to avoid reading stdin in following checks
2807     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2808         _type=llvm_gcc
2809         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2810         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2811         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2812         _cflags_speed='-O3'
2813         _cflags_size='-Os'
2814     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2815         _type=gcc
2816         gcc_version=$($_cc --version | head -n1)
2817         gcc_basever=$($_cc -dumpversion)
2818         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2819         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2820         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2821         if ! $_cc -dumpversion | grep -q '^2\.'; then
2822             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2823         fi
2824         _cflags_speed='-O3'
2825         _cflags_size='-Os'
2826     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2827         _type=icc
2828         _ident=$($_cc --version | head -n1)
2829         _depflags='-MMD'
2830         _cflags_speed='-O3'
2831         _cflags_size='-Os'
2832         _cflags_noopt='-O1'
2833     elif $_cc -v 2>&1 | grep -q xlc; then
2834         _type=xlc
2835         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2836         _cflags_speed='-O5'
2837         _cflags_size='-O5 -qcompact'
2838     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2839         _type=ccc
2840         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2841         _DEPFLAGS='-M'
2842         _cflags_speed='-fast'
2843         _cflags_size='-O1'
2844         _flags_filter=ccc_flags
2845     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2846         test -d "$sysroot" || die "No valid sysroot specified."
2847         _type=armcc
2848         _ident=$($_cc --vsn | head -n1)
2849         armcc_conf="$PWD/armcc.conf"
2850         $_cc --arm_linux_configure                 \
2851              --arm_linux_config_file="$armcc_conf" \
2852              --configure_sysroot="$sysroot"        \
2853              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2854              die "Error creating armcc configuration file."
2855         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2856         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2857         as_default="${cross_prefix}gcc"
2858         _depflags='-MMD'
2859         _cflags_speed='-O3'
2860         _cflags_size='-Os'
2861     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2862         _type=tms470
2863         _ident=$($_cc -version | head -n1 | tr -s ' ')
2864         _flags='--gcc --abi=eabi -me'
2865         _cc_e='-ppl -fe=$@'
2866         _cc_o='-fe=$@'
2867         _depflags='-ppa -ppd=$(@:.o=.d)'
2868         _cflags_speed='-O3 -mf=5'
2869         _cflags_size='-O3 -mf=2'
2870         _flags_filter=tms470_flags
2871     elif $_cc -v 2>&1 | grep -q clang; then
2872         _type=clang
2873         _ident=$($_cc --version | head -n1)
2874         _depflags='-MMD'
2875         _cflags_speed='-O3'
2876         _cflags_size='-Os'
2877     elif $_cc -V 2>&1 | grep -q Sun; then
2878         _type=suncc
2879         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2880         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2881         _DEPFLAGS='-xM1 -xc99'
2882         _ldflags='-std=c99'
2883         _cflags_speed='-O5'
2884         _cflags_size='-O5 -xspace'
2885         _flags_filter=suncc_flags
2886     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2887         _type=pathscale
2888         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2889         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2890         _cflags_speed='-O2'
2891         _cflags_size='-Os'
2892         _flags_filter='filter_out -Wdisabled-optimization'
2893     elif $_cc -v 2>&1 | grep -q Open64; then
2894         _type=open64
2895         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2896         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2897         _cflags_speed='-O2'
2898         _cflags_size='-Os'
2899         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2900     elif $_cc -V 2>&1 | grep -q Portland; then
2901         _type=pgi
2902         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2903         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2904         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2905         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2906         _cflags_noopt="-O"
2907         _flags_filter=pgi_flags
2908     elif $_cc 2>&1 | grep -q Microsoft; then
2909         _type=msvc
2910         _ident=$($cc 2>&1 | head -n1)
2911         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2912         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2913         _cflags_speed="-O2"
2914         _cflags_size="-O1"
2915         # Nonstandard output options, to avoid msys path conversion issues.
2916         # Relies on wrapper to remap it.
2917         if $_cc 2>&1 | grep -q Linker; then
2918             _ld_o='-out $@'
2919         else
2920             _ld_o='-Fe$@'
2921         fi
2922         _cc_o='-Fo $@'
2923         _cc_e='-P -Fi $@'
2924         _flags_filter=msvc_flags
2925         _ld_lib='lib%.a'
2926         _ld_path='-libpath:'
2927         _flags='-nologo'
2928         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2929         if [ $pfx = hostcc ]; then
2930             append _cflags -Dsnprintf=_snprintf
2931         fi
2932         disable stripping
2933     elif $_cc 2>&1 | grep -q Intel; then
2934         _type=icl
2935         _ident=$($cc 2>&1 | head -n1)
2936         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2937         # Not only is O3 broken on 13.x+ but it is slower on all previous
2938         # versions (tested) as well.
2939         _cflags_speed="-O2"
2940         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2941         # Nonstandard output options, to avoid msys path conversion issues.
2942         # Relies on wrapper to remap it.
2943         if $_cc 2>&1 | grep -q Linker; then
2944             _ld_o='-out $@'
2945         else
2946             _ld_o='-Fe$@'
2947         fi
2948         _cc_o='-Fo $@'
2949         _cc_e='-P'
2950         _flags_filter=icl_flags
2951         _ld_lib='lib%.a'
2952         _ld_path='-libpath:'
2953         # -Qdiag-error to make icl error when seeing certain unknown arguments
2954         _flags='-nologo -Qdiag-error:4044,10157'
2955         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2956         # with MSVC which enables it by default.
2957         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2958         if [ $pfx = hostcc ]; then
2959             append _cflags -Dsnprintf=_snprintf
2960         fi
2961     fi
2962
2963     eval ${pfx}_type=\$_type
2964     eval ${pfx}_ident=\$_ident
2965 }
2966
2967 set_ccvars(){
2968     eval ${1}_C=\${_cc_c-\${${1}_C}}
2969     eval ${1}_E=\${_cc_e-\${${1}_E}}
2970     eval ${1}_O=\${_cc_o-\${${1}_O}}
2971
2972     if [ -n "$_depflags" ]; then
2973         eval ${1}_DEPFLAGS=\$_depflags
2974     else
2975         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2976         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2977         eval DEP${1}FLAGS=\$_flags
2978     fi
2979 }
2980
2981 probe_cc cc "$cc"
2982 cflags_filter=$_flags_filter
2983 cflags_speed=$_cflags_speed
2984 cflags_size=$_cflags_size
2985 cflags_noopt=$_cflags_noopt
2986 add_cflags $_flags $_cflags
2987 cc_ldflags=$_ldflags
2988 set_ccvars CC
2989
2990 probe_cc hostcc "$host_cc"
2991 host_cflags_filter=$_flags_filter
2992 add_host_cflags  $_flags $_cflags
2993 set_ccvars HOSTCC
2994
2995 test -n "$cc_type" && enable $cc_type ||
2996     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2997
2998 : ${as_default:=$cc}
2999 : ${dep_cc_default:=$cc}
3000 : ${ld_default:=$cc}
3001 : ${host_ld_default:=$host_cc}
3002 set_default ar as dep_cc ld host_ld
3003
3004 probe_cc as "$as"
3005 asflags_filter=$_flags_filter
3006 add_asflags $_flags $_cflags
3007 set_ccvars AS
3008
3009 probe_cc ld "$ld"
3010 ldflags_filter=$_flags_filter
3011 add_ldflags $_flags $_ldflags
3012 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3013 LD_O=${_ld_o-$LD_O}
3014 LD_LIB=${_ld_lib-$LD_LIB}
3015 LD_PATH=${_ld_path-$LD_PATH}
3016
3017 probe_cc hostld "$host_ld"
3018 host_ldflags_filter=$_flags_filter
3019 add_host_ldflags $_flags $_ldflags
3020 HOSTLD_O=${_ld_o-$HOSTLD_O}
3021
3022 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3023     probe_cc depcc "$dep_cc"
3024     CCDEP=${_DEPCMD:-$DEPCMD}
3025     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3026     DEPCCFLAGS=$_flags
3027 fi
3028
3029 if $ar 2>&1 | grep -q Microsoft; then
3030     arflags="-nologo"
3031     ar_o='-out:$@'
3032 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3033     arflags="rq"
3034     ar_o='$@'
3035 else
3036     arflags="rc"
3037     ar_o='$@'
3038 fi
3039
3040 add_cflags $extra_cflags
3041 add_cxxflags $extra_cxxflags
3042 add_asflags $extra_cflags
3043
3044 if test -n "$sysroot"; then
3045     case "$cc_type" in
3046         gcc|llvm_gcc|clang)
3047             add_cppflags --sysroot="$sysroot"
3048             add_ldflags --sysroot="$sysroot"
3049         ;;
3050         tms470)
3051             add_cppflags -I"$sysinclude"
3052             add_ldflags  --sysroot="$sysroot"
3053         ;;
3054     esac
3055 fi
3056
3057 if test "$cpu" = host; then
3058     enabled cross_compile &&
3059         die "--cpu=host makes no sense when cross-compiling."
3060
3061     case "$cc_type" in
3062         gcc|llvm_gcc)
3063             check_native(){
3064                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3065                 sed -n "/cc1.*$1=/{
3066                             s/.*$1=\\([^ ]*\\).*/\\1/
3067                             p
3068                             q
3069                         }" $TMPE
3070             }
3071             cpu=$(check_native -march || check_native -mcpu)
3072         ;;
3073     esac
3074
3075     test "${cpu:-host}" = host &&
3076         die "--cpu=host not supported with compiler $cc"
3077 fi
3078
3079 # Deal with common $arch aliases
3080 case "$arch" in
3081     aarch64|arm64)
3082         arch="aarch64"
3083     ;;
3084     arm*|iPad*)
3085         arch="arm"
3086     ;;
3087     mips*|IP*)
3088         arch="mips"
3089     ;;
3090     parisc*|hppa*)
3091         arch="parisc"
3092     ;;
3093     "Power Macintosh"|ppc*|powerpc*)
3094         arch="ppc"
3095     ;;
3096     s390|s390x)
3097         arch="s390"
3098     ;;
3099     sh4|sh)
3100         arch="sh4"
3101     ;;
3102     sun4u|sparc*)
3103         arch="sparc"
3104     ;;
3105     tilegx|tile-gx)
3106         arch="tilegx"
3107     ;;
3108     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3109         arch="x86"
3110     ;;
3111 esac
3112
3113 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3114 enable $arch
3115
3116 # Add processor-specific flags
3117 if enabled aarch64; then
3118
3119     case $cpu in
3120         armv*)
3121             cpuflags="-march=$cpu"
3122         ;;
3123         *)
3124             cpuflags="-mcpu=$cpu"
3125         ;;
3126     esac
3127
3128 elif enabled alpha; then
3129
3130     cpuflags="-mcpu=$cpu"
3131
3132 elif enabled arm; then
3133
3134     check_arm_arch() {
3135         check_cpp_condition stddef.h \
3136             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3137             $cpuflags
3138     }
3139
3140     probe_arm_arch() {
3141         if   check_arm_arch 4;        then echo armv4;
3142         elif check_arm_arch 4T;       then echo armv4t;
3143         elif check_arm_arch 5;        then echo armv5;
3144         elif check_arm_arch 5E;       then echo armv5e;
3145         elif check_arm_arch 5T;       then echo armv5t;
3146         elif check_arm_arch 5TE;      then echo armv5te;
3147         elif check_arm_arch 5TEJ;     then echo armv5te;
3148         elif check_arm_arch 6;        then echo armv6;
3149         elif check_arm_arch 6J;       then echo armv6j;
3150         elif check_arm_arch 6K;       then echo armv6k;
3151         elif check_arm_arch 6Z;       then echo armv6z;
3152         elif check_arm_arch 6ZK;      then echo armv6zk;
3153         elif check_arm_arch 6T2;      then echo armv6t2;
3154         elif check_arm_arch 7;        then echo armv7;
3155         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3156         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3157         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3158         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3159         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3160         fi
3161     }
3162
3163     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3164
3165     case $cpu in
3166         armv*)
3167             cpuflags="-march=$cpu"
3168             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3169         ;;
3170         *)
3171             cpuflags="-mcpu=$cpu"
3172             case $cpu in
3173                 cortex-a*)                               subarch=armv7a  ;;
3174                 cortex-r*)                               subarch=armv7r  ;;
3175                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3176                 arm11*)                                  subarch=armv6   ;;
3177                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3178                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3179                 *)                             subarch=$(probe_arm_arch) ;;
3180             esac
3181         ;;
3182     esac
3183
3184     case "$subarch" in
3185         armv5t*)    enable fast_clz                ;;
3186         armv[6-8]*) enable fast_clz fast_unaligned ;;
3187     esac
3188
3189 elif enabled avr32; then
3190
3191     case $cpu in
3192         ap7[02]0[0-2])
3193             subarch="avr32_ap"
3194             cpuflags="-mpart=$cpu"
3195         ;;
3196         ap)
3197             subarch="avr32_ap"
3198             cpuflags="-march=$cpu"
3199         ;;
3200         uc3[ab]*)
3201             subarch="avr32_uc"
3202             cpuflags="-mcpu=$cpu"
3203         ;;
3204         uc)
3205             subarch="avr32_uc"
3206             cpuflags="-march=$cpu"
3207         ;;
3208     esac
3209
3210 elif enabled bfin; then
3211
3212     cpuflags="-mcpu=$cpu"
3213
3214 elif enabled mips; then
3215
3216     cpuflags="-march=$cpu"
3217
3218     case $cpu in
3219         24kc)
3220             disable mipsfpu
3221             disable mipsdspr1
3222             disable mipsdspr2
3223         ;;
3224         24kf*)
3225             disable mipsdspr1
3226             disable mipsdspr2
3227         ;;
3228         24kec|34kc|1004kc)
3229             disable mipsfpu
3230             disable mipsdspr2
3231         ;;
3232         24kef*|34kf*|1004kf*)
3233             disable mipsdspr2
3234         ;;
3235         74kc)
3236             disable mipsfpu
3237         ;;
3238     esac
3239
3240 elif enabled ppc; then
3241
3242     case $(tolower $cpu) in
3243         601|ppc601|powerpc601)
3244             cpuflags="-mcpu=601"
3245             disable altivec
3246         ;;
3247         603*|ppc603*|powerpc603*)
3248             cpuflags="-mcpu=603"
3249             disable altivec
3250         ;;
3251         604*|ppc604*|powerpc604*)
3252             cpuflags="-mcpu=604"
3253             disable altivec
3254         ;;
3255         g3|75*|ppc75*|powerpc75*)
3256             cpuflags="-mcpu=750"
3257             disable altivec
3258         ;;
3259         g4|745*|ppc745*|powerpc745*)
3260             cpuflags="-mcpu=7450"
3261         ;;
3262         74*|ppc74*|powerpc74*)
3263             cpuflags="-mcpu=7400"
3264         ;;
3265         g5|970|ppc970|powerpc970)
3266             cpuflags="-mcpu=970"
3267         ;;
3268         power[3-7]*)
3269             cpuflags="-mcpu=$cpu"
3270         ;;
3271         cell)
3272             cpuflags="-mcpu=cell"
3273             enable ldbrx
3274         ;;
3275         e500mc)
3276             cpuflags="-mcpu=e500mc"
3277             disable altivec
3278         ;;
3279         e500v2)
3280             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3281             disable altivec
3282         ;;
3283         e500)
3284             cpuflags="-mcpu=8540 -mhard-float"
3285             disable altivec
3286         ;;
3287     esac
3288
3289 elif enabled sparc; then
3290
3291     case $cpu in
3292         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3293             cpuflags="-mcpu=$cpu"
3294             disable vis
3295         ;;
3296         ultrasparc*|niagara[234])
3297             cpuflags="-mcpu=$cpu"
3298         ;;
3299     esac
3300
3301 elif enabled x86; then
3302
3303     case $cpu in
3304         i[345]86|pentium)
3305             cpuflags="-march=$cpu"
3306             disable mmx
3307         ;;
3308         # targets that do NOT support nopl and conditional mov (cmov)
3309         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3310             cpuflags="-march=$cpu"
3311             disable i686
3312         ;;
3313         # targets that do support nopl and conditional mov (cmov)
3314         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3315             cpuflags="-march=$cpu"
3316             enable i686
3317             enable fast_cmov
3318         ;;
3319         # targets that do support conditional mov but on which it's slow
3320         pentium4|pentium4m|prescott|nocona)
3321             cpuflags="-march=$cpu"
3322             enable i686
3323             disable fast_cmov
3324         ;;
3325     esac
3326
3327 fi
3328
3329 if [ "$cpu" != generic ]; then
3330     add_cflags  $cpuflags
3331     add_asflags $cpuflags
3332 fi
3333
3334 # compiler sanity check
3335 check_exec <<EOF
3336 int main(void){ return 0; }
3337 EOF
3338 if test "$?" != 0; then
3339     echo "$cc is unable to create an executable file."
3340     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3341         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3342         echo "Only do this if you know what cross compiling means."
3343     fi
3344     die "C compiler test failed."
3345 fi
3346
3347 add_cppflags -D_ISOC99_SOURCE
3348 add_cxxflags -D__STDC_CONSTANT_MACROS
3349 check_cflags -std=c99
3350 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3351 #include <stdlib.h>
3352 EOF
3353 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3354 #include <stdlib.h>
3355 EOF
3356
3357 check_host_cflags -std=c99
3358 check_host_cflags -Wall
3359
3360 check_64bit(){
3361     arch32=$1
3362     arch64=$2
3363     expr=$3
3364     check_code cc "" "int test[2*($expr) - 1]" &&
3365         subarch=$arch64 || subarch=$arch32
3366 }
3367
3368 case "$arch" in
3369     aarch64|alpha|ia64)
3370         spic=$shared
3371     ;;
3372     mips)
3373         check_64bit mips mips64 '_MIPS_SIM > 1'
3374         spic=$shared
3375     ;;
3376     parisc)
3377         check_64bit parisc parisc64 'sizeof(void *) > 4'
3378         spic=$shared
3379     ;;
3380     ppc)
3381         check_64bit ppc ppc64 'sizeof(void *) > 4'
3382         spic=$shared
3383     ;;
3384     sparc)
3385         check_64bit sparc sparc64 'sizeof(void *) > 4'
3386         spic=$shared
3387     ;;
3388     x86)
3389         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3390         if test "$subarch" = "x86_64"; then
3391             spic=$shared
3392         fi
3393     ;;
3394     ppc)
3395         check_cc <<EOF && subarch="ppc64"
3396         int test[(int)sizeof(char*) - 7];
3397 EOF
3398     ;;
3399 esac
3400
3401 enable $subarch
3402 enabled spic && enable_weak pic
3403
3404 # OS specific
3405 case $target_os in
3406     aix)
3407         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3408         ;;
3409     haiku)
3410         prefix_default="/boot/common"
3411         network_extralibs="-lnetwork"
3412         host_libs=
3413         ;;
3414     sunos)
3415         FFSERVERLDFLAGS=""
3416         SHFLAGS='-shared -Wl,-h,$$(@F)'
3417         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3418         network_extralibs="-lsocket -lnsl"
3419         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3420         # When using suncc to build, the Solaris linker will mark
3421         # an executable with each instruction set encountered by
3422         # the Solaris assembler.  As our libraries contain their own
3423         # guards for processor-specific code, instead suppress
3424         # generation of the HWCAPS ELF section on Solaris x86 only.
3425         enabled_all suncc x86 &&
3426             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3427             add_ldflags -Wl,-M,mapfile
3428         nm_default='nm -P -g'
3429         ;;
3430     netbsd)
3431         disable symver
3432         oss_indev_extralibs="-lossaudio"
3433         oss_outdev_extralibs="-lossaudio"
3434         enabled gcc || check_ldflags -Wl,-zmuldefs
3435         ;;
3436     openbsd|bitrig)
3437         disable symver
3438         SHFLAGS='-shared'
3439         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3440         SLIB_INSTALL_LINKS=
3441         oss_indev_extralibs="-lossaudio"
3442         oss_outdev_extralibs="-lossaudio"
3443         ;;
3444     dragonfly)
3445         disable symver
3446         ;;
3447     freebsd)
3448         ;;
3449     bsd/os)
3450         add_extralibs -lpoll -lgnugetopt
3451         strip="strip -d"
3452         ;;
3453     darwin)
3454         gas="gas-preprocessor.pl $cc"
3455         enabled ppc && add_asflags -force_cpusubtype_ALL
3456         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3457         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3458         strip="${strip} -x"
3459         add_ldflags -Wl,-dynamic,-search_paths_first
3460         SLIBSUF=".dylib"
3461         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3462         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3463         FFSERVERLDFLAGS=-Wl,-bind_at_load
3464         objformat="macho"
3465         enabled x86_64 && objformat="macho64"
3466         enabled_any pic shared ||
3467             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3468         ;;
3469     mingw32*)
3470         if test $target_os = "mingw32ce"; then
3471             disable network
3472         else
3473             target_os=mingw32
3474         fi
3475         LIBTARGET=i386
3476         if enabled x86_64; then
3477             LIBTARGET="i386:x86-64"
3478         elif enabled arm; then
3479             LIBTARGET=arm-wince
3480         fi
3481         check_ldflags -Wl,--nxcompat
3482         check_ldflags -Wl,--dynamicbase
3483         shlibdir_default="$bindir_default"
3484         SLIBPREF=""
3485         SLIBSUF=".dll"
3486         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3487         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3488         dlltool="${cross_prefix}dlltool"
3489         if check_cmd lib.exe -list; then
3490             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3491             if enabled x86_64; then
3492                 LIBTARGET=x64
3493             fi
3494         elif check_cmd $dlltool --version; then
3495             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3496         fi
3497         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3498         SLIB_INSTALL_LINKS=
3499         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3500         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3501         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3502         objformat="win32"
3503         ranlib=:
3504         enable dos_paths
3505         ;;
3506     win32|win64)
3507         if enabled shared; then
3508             # Link to the import library instead of the normal static library
3509             # for shared libs.
3510             LD_LIB='%.lib'
3511             # Cannot build shared and static libs at the same time with MSVC.
3512             disable static
3513         fi
3514         shlibdir_default="$bindir_default"
3515         SLIBPREF=""
3516         SLIBSUF=".dll"
3517         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3518         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3519         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3520         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3521         SLIB_INSTALL_LINKS=
3522         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3523         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3524         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3525         objformat="win32"
3526         ranlib=:
3527         enable dos_paths
3528         ;;
3529     cygwin*)
3530         target_os=cygwin
3531         shlibdir_default="$bindir_default"
3532         SLIBPREF="cyg"
3533         SLIBSUF=".dll"
3534         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3535         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3536         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3537         SLIB_INSTALL_LINKS=
3538         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3539         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3540         objformat="win32"
3541         enable dos_paths
3542         ;;
3543     *-dos|freedos|opendos)
3544         network_extralibs="-lsocket"
3545         objformat="coff"
3546         enable dos_paths
3547         add_cppflags -U__STRICT_ANSI__
3548         ;;
3549     linux)
3550         enable dv1394
3551         ;;
3552     irix*)
3553         target_os=irix
3554         ranlib="echo ignoring ranlib"
3555         ;;
3556     os/2*)
3557         strip="lxlite -CS"
3558         ln_s="cp -f"
3559         objformat="aout"
3560         add_cppflags -D_GNU_SOURCE
3561         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3562         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3563         FFSERVERLDFLAGS=""
3564         LIBSUF="_s.a"
3565         SLIBPREF=""
3566         SLIBSUF=".dll"
3567         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3568         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3569         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3570             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3571             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3572             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3573             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3574             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3575         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3576             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3577         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3578         enable dos_paths
3579         enable_weak os2threads
3580         ;;
3581     gnu/kfreebsd)
3582         add_cppflags -D_BSD_SOURCE
3583         ;;
3584     gnu)
3585         ;;
3586     qnx)
3587         add_cppflags -D_QNX_SOURCE
3588         network_extralibs="-lsocket"
3589         ;;
3590     symbian)
3591         SLIBSUF=".dll"
3592         enable dos_paths
3593         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3594         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3595         add_ldflags -Wl,--target1-abs,--no-undefined \
3596                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3597                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3598         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3599                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3600                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3601         ;;
3602     osf1)
3603         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3604         FFSERVERLDFLAGS=
3605         ;;
3606     minix)
3607         ;;
3608     plan9)
3609         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3610                      -D_REENTRANT_SOURCE        \
3611                      -D_RESEARCH_SOURCE         \
3612                      -DFD_SETSIZE=96            \
3613                      -DHAVE_SOCK_OPTS
3614         add_compat strtod.o strtod=avpriv_strtod
3615         network_extralibs='-lbsd'
3616         exeobjs=compat/plan9/main.o
3617         disable ffserver
3618         cp_f='cp'
3619         ;;
3620     none)
3621         ;;
3622     *)
3623         die "Unknown OS '$target_os'."
3624         ;;
3625 esac
3626
3627 # determine libc flavour
3628
3629 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3630 if check_cpp_condition features.h "defined __UCLIBC__"; then
3631     libc_type=uclibc
3632     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3633 elif check_cpp_condition features.h "defined __GLIBC__"; then
3634     libc_type=glibc
3635     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3636 # MinGW headers can be installed on Cygwin, so check for newlib first.
3637 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3638     libc_type=newlib
3639     add_cppflags -U__STRICT_ANSI__
3640 elif check_header _mingw.h; then
3641     libc_type=mingw
3642     check_cpp_condition _mingw.h \
3643         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3644             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3645         die "ERROR: MinGW runtime version must be >= 3.15."
3646     add_cppflags -U__STRICT_ANSI__
3647     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3648             __MINGW64_VERSION_MAJOR < 3"; then
3649         add_compat msvcrt/snprintf.o
3650         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3651     else
3652         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3653     fi
3654 elif check_func_headers stdlib.h _get_doserrno; then
3655     libc_type=msvcrt
3656     add_compat strtod.o strtod=avpriv_strtod
3657     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3658                                  _snprintf=avpriv_snprintf  \
3659                                  vsnprintf=avpriv_vsnprintf
3660     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3661     # 0x601 by default unless something else is set by the user.
3662     # This can easily lead to us detecting functions only present
3663     # in such new versions and producing binaries requiring windows 7.0.
3664     # Therefore explicitly set the default to XP unless the user has
3665     # set something else on the command line.
3666     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3667 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3668     libc_type=klibc
3669 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3670     libc_type=bionic
3671     add_compat strtod.o strtod=avpriv_strtod
3672 fi
3673
3674 test -n "$libc_type" && enable $libc_type
3675
3676 # hacks for compiler/libc/os combinations
3677
3678 if enabled_all tms470 glibc; then
3679     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3680     add_cppflags -D__USER_LABEL_PREFIX__=
3681     add_cppflags -D__builtin_memset=memset
3682     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3683     add_cflags   -pds=48    # incompatible redefinition of macro
3684 fi
3685
3686 if enabled_all ccc glibc; then
3687     add_ldflags -Wl,-z,now  # calls to libots crash without this
3688 fi
3689
3690 esc(){
3691     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3692 }
3693
3694 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3695
3696 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3697
3698 set_default $PATHS_LIST
3699 set_default nm
3700
3701 # we need to build at least one lib type
3702 if ! enabled_any static shared; then
3703     cat <<EOF
3704 At least one library type must be built.
3705 Specify --enable-static to build the static libraries or --enable-shared to
3706 build the shared libraries as well. To only build the shared libraries specify
3707 --disable-static in addition to --enable-shared.
3708 EOF
3709     exit 1;
3710 fi
3711
3712 # backward compatibility layer for incompatible_libav/fork_abi
3713 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3714 enabled incompatible_libav_abi && enable incompatible_fork_abi
3715
3716 die_license_disabled() {
3717     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3718 }
3719
3720 die_license_disabled_gpl() {
3721     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3722 }
3723
3724 die_license_disabled gpl frei0r
3725 die_license_disabled gpl libcdio
3726 die_license_disabled gpl libutvideo
3727 die_license_disabled gpl libvidstab
3728 die_license_disabled gpl libx264
3729 die_license_disabled gpl libxavs
3730 die_license_disabled gpl libxvid
3731 die_license_disabled gpl x11grab
3732
3733 die_license_disabled nonfree libaacplus
3734 die_license_disabled nonfree libfaac
3735 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3736 enabled gpl && die_license_disabled_gpl nonfree openssl
3737
3738 die_license_disabled version3 libopencore_amrnb
3739 die_license_disabled version3 libopencore_amrwb
3740 die_license_disabled version3 libvo_aacenc
3741 die_license_disabled version3 libvo_amrwbenc
3742
3743 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3744
3745 disabled optimizations || check_cflags -fomit-frame-pointer
3746
3747 enable_weak_pic() {
3748     disabled pic && return
3749     enable pic
3750     add_cppflags -DPIC
3751     case "$target_os" in
3752     mingw*|cygwin*)
3753         ;;
3754     *)
3755         add_cflags -fPIC
3756         ;;
3757     esac
3758     add_asflags  -fPIC
3759 }
3760
3761 enabled pic && enable_weak_pic
3762
3763 check_cc <<EOF || die "Symbol mangling check failed."
3764 int ff_extern;
3765 EOF
3766 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3767 extern_prefix=${sym%%ff_extern*}
3768
3769 check_cc <<EOF && enable_weak inline_asm
3770 void foo(void) { __asm__ volatile ("" ::); }
3771 EOF
3772
3773 _restrict=
3774 for restrict_keyword in restrict __restrict__ __restrict; do
3775     check_cc <<EOF && _restrict=$restrict_keyword && break
3776 void foo(char * $restrict_keyword p);
3777 EOF
3778 done
3779
3780 check_cc <<EOF && enable attribute_packed
3781 struct { int x; } __attribute__((packed)) x;
3782 EOF
3783
3784 check_cc <<EOF && enable attribute_may_alias
3785 union { int x; } __attribute__((may_alias)) x;
3786 EOF
3787
3788 check_cc <<EOF || die "endian test failed"
3789 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3790 EOF
3791 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3792
3793 if enabled alpha; then
3794
3795     check_cflags -mieee
3796
3797 elif enabled arm; then
3798
3799     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3800 float func(float a, float b){ return a+b; }
3801 EOF
3802
3803     enabled thumb && check_cflags -mthumb || check_cflags -marm
3804     nogas=die
3805
3806     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3807         enable vfp_args
3808     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3809         case "${cross_prefix:-$cc}" in
3810             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3811             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3812 __asm__ (".eabi_attribute 28, 1");
3813 int main(void) { return 0; }
3814 EOF
3815         esac
3816         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3817     fi
3818
3819     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3820     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3821     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3822     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3823     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3824     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3825
3826     [ $target_os = linux ] ||
3827         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3828             $ARCH_EXT_LIST_ARM
3829
3830     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3831     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3832
3833     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3834
3835     # llvm's integrated assembler supports .object_arch from llvm 3.5
3836     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
3837 .object_arch armv4
3838 EOF
3839
3840 elif enabled mips; then
3841
3842     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3843     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3844      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3845     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3846      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3847     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3848      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3849     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3850      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3851
3852 elif enabled parisc; then
3853
3854     if enabled gcc; then
3855         case $($cc -dumpversion) in
3856             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3857         esac
3858     fi
3859
3860 elif enabled ppc; then
3861
3862     enable local_aligned_8 local_aligned_16
3863
3864     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3865     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3866     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3867     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3868
3869     # AltiVec flags: The FSF version of GCC differs from the Apple version
3870     if enabled altivec; then
3871         nogas=warn
3872         check_cflags -maltivec -mabi=altivec &&
3873         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3874         check_cflags -faltivec
3875
3876         # check if our compiler supports Motorola AltiVec C API
3877         check_cc <<EOF || disable altivec
3878 $inc_altivec_h
3879 int main(void) {
3880     vector signed int v1 = (vector signed int) { 0 };
3881     vector signed int v2 = (vector signed int) { 1 };
3882     v1 = vec_add(v1, v2);
3883     return 0;
3884 }
3885 EOF
3886
3887         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3888     fi
3889
3890 elif enabled sparc; then
3891
3892     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3893
3894 elif enabled x86; then
3895
3896     check_builtin rdtsc    intrin.h   "__rdtsc()"
3897     check_builtin mm_empty mmintrin.h "_mm_empty()"
3898
3899     enable local_aligned_8 local_aligned_16
3900
3901     # check whether EBP is available on x86
3902     # As 'i' is stored on the stack, this program will crash
3903     # if the base pointer is used to access it because the
3904     # base pointer is cleared in the inline assembly code.
3905     check_exec_crash <<EOF && enable ebp_available
3906 volatile int i=0;
3907 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3908 return i;
3909 EOF
3910
3911     # check whether EBX is available on x86
3912     check_inline_asm ebx_available '""::"b"(0)' &&
3913         check_inline_asm ebx_available '"":::"%ebx"'
3914
3915     # check whether xmm clobbers are supported
3916     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3917
3918     # check whether binutils is new enough to compile SSSE3/MMXEXT
3919     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3920     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3921
3922     if ! disabled_any asm mmx yasm; then
3923         if check_cmd $yasmexe --version; then
3924             enabled x86_64 && yasm_extra="-m amd64"
3925             yasm_debug="-g dwarf2"
3926         elif check_cmd nasm -v; then
3927             yasmexe=nasm
3928             yasm_debug="-g -F dwarf"
3929             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3930         fi
3931
3932         YASMFLAGS="-f $objformat $yasm_extra"
3933         enabled pic               && append YASMFLAGS "-DPIC"
3934         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3935         case "$objformat" in
3936             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3937         esac
3938
3939         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3940             die "yasm not found, use --disable-yasm for a crippled build"
3941         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3942         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3943         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3944     fi
3945
3946     case "$cpu" in
3947         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3948             disable fast_clz
3949         ;;
3950     esac
3951
3952 fi
3953
3954 if enabled asm; then
3955     as=${gas:=$as}
3956     check_as <<EOF && enable gnu_as || \
3957         $nogas "GNU assembler not found, install gas-preprocessor"
3958 .macro m n
3959 \n: .int 0
3960 .endm
3961 m x
3962 EOF
3963 fi
3964
3965 check_ldflags -Wl,--as-needed
3966 check_ldflags -Wl,-z,noexecstack
3967
3968 if check_func dlopen; then
3969     ldl=
3970 elif check_func dlopen -ldl; then
3971     ldl=-ldl
3972 fi
3973
3974 if ! disabled network; then
3975     check_type "sys/types.h sys/socket.h" socklen_t
3976     check_type netdb.h "struct addrinfo"
3977     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3978     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3979     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3980     check_type netinet/in.h "struct sockaddr_in6"
3981     check_type poll.h "struct pollfd"
3982     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3983     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3984     check_type netinet/sctp.h "struct sctp_event_subscribe"
3985     check_func getaddrinfo $network_extralibs
3986     check_func getservbyport $network_extralibs
3987     # Prefer arpa/inet.h over winsock2
3988     if check_header arpa/inet.h ; then
3989         check_func closesocket
3990     elif check_header winsock2.h ; then
3991         check_func_headers winsock2.h closesocket -lws2 &&
3992             network_extralibs="-lws2" ||
3993         { check_func_headers winsock2.h closesocket -lws2_32 &&
3994             network_extralibs="-lws2_32"; }
3995         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3996         check_type ws2tcpip.h socklen_t
3997         check_type ws2tcpip.h "struct addrinfo"
3998         check_type ws2tcpip.h "struct group_source_req"
3999         check_type ws2tcpip.h "struct ip_mreq_source"
4000         check_type ws2tcpip.h "struct ipv6_mreq"
4001         check_type winsock2.h "struct pollfd"
4002         check_type ws2tcpip.h "struct sockaddr_in6"
4003         check_type ws2tcpip.h "struct sockaddr_storage"
4004         check_struct winsock2.h "struct sockaddr" sa_len
4005     else
4006         disable network
4007     fi
4008 fi
4009
4010 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4011 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4012
4013 check_func  access
4014 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4015 check_func  fcntl
4016 check_func  fork
4017 check_func_headers stdlib.h getenv
4018 check_func  gethrtime
4019 check_func  getopt
4020 check_func  getrusage
4021 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4022 check_func  gettimeofday
4023 check_func  inet_aton $network_extralibs
4024 check_func  isatty
4025 check_func  localtime_r
4026 check_func  ${malloc_prefix}memalign            && enable memalign
4027 check_func  mkstemp
4028 check_func  mmap
4029 check_func  mprotect
4030 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4031 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4032 check_func  setrlimit
4033 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4034 check_func  strerror_r
4035 check_func  sched_getaffinity
4036 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4037 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4038 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4039 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4040 check_func  sysconf
4041 check_func  sysctl
4042 check_func  usleep
4043 check_func_headers conio.h kbhit
4044 check_func_headers windows.h PeekNamedPipe
4045 check_func_headers io.h setmode
4046 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4047 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4048 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4049 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4050 check_func_headers windows.h GetProcessAffinityMask
4051 check_func_headers windows.h GetProcessTimes
4052 check_func_headers windows.h GetSystemTimeAsFileTime
4053 check_func_headers windows.h MapViewOfFile
4054 check_func_headers windows.h SetConsoleTextAttribute
4055 check_func_headers windows.h Sleep
4056 check_func_headers windows.h VirtualAlloc
4057 check_func_headers glob.h glob
4058 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4059
4060 check_header cl/cl.h
4061 check_header direct.h
4062 check_header dlfcn.h
4063 check_header dxva.h
4064 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4065 check_header io.h
4066 check_header libcrystalhd/libcrystalhd_if.h
4067 check_header malloc.h
4068 check_header poll.h
4069 check_header sys/mman.h
4070 check_header sys/param.h
4071 check_header sys/resource.h
4072 check_header sys/select.h
4073 check_header sys/time.h
4074 check_header termios.h
4075 check_header unistd.h
4076 check_header vdpau/vdpau.h
4077 check_header vdpau/vdpau_x11.h
4078 check_header VideoDecodeAcceleration/VDADecoder.h
4079 check_header windows.h
4080 check_header X11/extensions/XvMClib.h
4081 check_header asm/types.h
4082
4083 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4084 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4085
4086 if ! disabled w32threads && ! enabled pthreads; then
4087     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4088 fi
4089
4090 # check for some common methods of building with pthread support
4091 # do this before the optional library checks as some of them require pthreads
4092 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4093     enable pthreads
4094     if check_func pthread_create; then
4095         :
4096     elif check_func pthread_create -pthread; then
4097         add_cflags -pthread
4098         add_extralibs -pthread
4099     elif check_func pthread_create -pthreads; then
4100         add_cflags -pthreads
4101         add_extralibs -pthreads
4102     elif check_func pthread_create -lpthreadGC2; then
4103         add_extralibs -lpthreadGC2
4104     elif ! check_lib pthread.h pthread_create -lpthread; then
4105         disable pthreads
4106     fi
4107 fi
4108
4109 for thread in $THREADS_LIST; do
4110     if enabled $thread; then
4111         test -n "$thread_type" &&
4112             die "ERROR: Only one thread type must be selected." ||
4113             thread_type="$thread"
4114     fi
4115 done
4116
4117 if enabled pthreads; then
4118   check_func pthread_cancel
4119 fi
4120
4121 enabled sync_val_compare_and_swap && enable atomics_gcc
4122 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4123 enabled MemoryBarrier && enable atomics_win32
4124
4125 check_lib math.h sin -lm && LIBM="-lm"
4126 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4127
4128 atan2f_args=2
4129 ldexpf_args=2
4130 powf_args=2
4131
4132 for func in $MATH_FUNCS; do
4133     eval check_mathfunc $func \${${func}_args:-1}
4134 done
4135
4136 # these are off by default, so fail if requested and not available
4137 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4138                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4139                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4140 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4141 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4142 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4143 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4144 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4145 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4146 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4147 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4148                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4149                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4150 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4151 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4152 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4153 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"
4154 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4155 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4156 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme
4157 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4158                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4159                                done || die "ERROR: libgsm not found"; }
4160 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4161 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4162 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4163 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4164 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4165 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4166 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4167 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4168                                check_lib openjpeg.h opj_version -lopenjpeg ||
4169                                die "ERROR: libopenjpeg not found"; }
4170 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4171 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4172 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4173 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4174 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4175 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_frame
4176 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4177 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4178 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4179     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4180     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4181 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4182 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4183                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4184                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4185 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4186 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4187 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4188 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4189 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4190 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4191 enabled libvpx            && {
4192     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4193                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4194     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 ||
4195                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4196     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4197     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4198 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4199 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4200                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4201                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4202 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4203 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4204 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4205 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4206                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4207                                die "ERROR: openal not found"; } &&
4208                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4209                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4210 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4211                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4212                                die "ERROR: opencl not found"; } &&
4213                              { ! enabled_any w32threads os2threads ||
4214                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4215                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4216                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4217                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4218 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4219                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4220                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4221                                die "ERROR: openssl not found"; }
4222
4223 if enabled gnutls; then
4224     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4225     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4226 fi
4227
4228 # libdc1394 check
4229 if enabled libdc1394; then
4230     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4231         enable libdc1394_2; } ||
4232     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4233         enable libdc1394_1; } ||
4234     die "ERROR: No version of libdc1394 found "
4235 fi
4236
4237 SDL_CONFIG="${cross_prefix}sdl-config"
4238 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4239     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4240     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4241     enable sdl
4242 else
4243   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4244     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4245     sdl_libs=$("${SDL_CONFIG}" --libs)
4246     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4247     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4248     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4249     enable sdl
4250   fi
4251 fi
4252 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4253
4254 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4255 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4256 perl --version > /dev/null 2>&1 && enable perl || disable perl
4257 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4258 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4259
4260 check_header linux/fb.h
4261 check_header linux/videodev.h
4262 check_header linux/videodev2.h
4263 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4264
4265 check_header sys/videoio.h
4266
4267 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4268 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4269 # w32api 3.12 had it defined wrong
4270 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4271
4272 check_type "dshow.h" IBaseFilter
4273
4274 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4275 { check_header dev/bktr/ioctl_meteor.h &&
4276   check_header dev/bktr/ioctl_bt848.h; } ||
4277 { check_header machine/ioctl_meteor.h &&
4278   check_header machine/ioctl_bt848.h; } ||
4279 { check_header dev/video/meteor/ioctl_meteor.h &&
4280   check_header dev/video/bktr/ioctl_bt848.h; } ||
4281 check_header dev/ic/bt8xx.h
4282
4283 check_header sndio.h
4284 if check_struct sys/soundcard.h audio_buf_info bytes; then
4285     enable_safe sys/soundcard.h
4286 else
4287     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4288     #include <sys/soundcard.h>
4289     audio_buf_info abc;
4290 EOF
4291 fi
4292 check_header soundcard.h
4293
4294 enabled_any alsa_indev alsa_outdev &&
4295     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4296
4297 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4298     check_func jack_port_get_latency_range -ljack
4299
4300 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4301
4302 if enabled libcdio; then
4303     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4304     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4305     die "ERROR: libcdio-paranoia not found"
4306 fi
4307
4308 enabled x11grab                                           &&
4309 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4310 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4311 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4312
4313 enabled vaapi &&
4314     check_lib va/va.h vaInitialize -lva ||
4315     disable vaapi
4316
4317 enabled vdpau &&
4318     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4319     disable vdpau
4320
4321 # Funny iconv installations are not unusual, so check it after all flags have been set
4322 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4323
4324 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4325
4326 # add some useful compiler flags if supported
4327 check_cflags -Wdeclaration-after-statement
4328 check_cflags -Wall
4329 check_cflags -Wno-parentheses
4330 check_cflags -Wno-switch
4331 check_cflags -Wno-format-zero-length
4332 check_cflags -Wdisabled-optimization
4333 check_cflags -Wpointer-arith
4334 check_cflags -Wredundant-decls
4335 check_cflags -Wno-pointer-sign
4336 check_cflags -Wwrite-strings
4337 check_cflags -Wtype-limits
4338 check_cflags -Wundef
4339 check_cflags -Wmissing-prototypes
4340 check_cflags -Wno-pointer-to-int-cast
4341 check_cflags -Wstrict-prototypes
4342 enabled extra_warnings && check_cflags -Winline
4343
4344 # add some linker flags
4345 check_ldflags -Wl,--warn-common
4346 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4347 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4348
4349 enabled xmm_clobber_test &&
4350     check_ldflags -Wl,--wrap,avcodec_open2              \
4351                   -Wl,--wrap,avcodec_decode_audio4      \
4352                   -Wl,--wrap,avcodec_decode_video2      \
4353                   -Wl,--wrap,avcodec_decode_subtitle2   \
4354                   -Wl,--wrap,avcodec_encode_audio2      \
4355                   -Wl,--wrap,avcodec_encode_video       \
4356                   -Wl,--wrap,avcodec_encode_subtitle    \
4357                   -Wl,--wrap,sws_scale ||
4358     disable xmm_clobber_test
4359
4360 echo "X{};" > $TMPV
4361 if test_ldflags -Wl,--version-script,$TMPV; then
4362     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4363     check_cc <<EOF && enable symver_asm_label
4364 void ff_foo(void) __asm__ ("av_foo@VERSION");
4365 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4366 EOF
4367     check_cc <<EOF && enable symver_gnu_asm
4368 __asm__(".symver ff_foo,av_foo@VERSION");
4369 void ff_foo(void) {}
4370 EOF
4371 fi
4372
4373 if [ -z "$optflags" ]; then
4374     if enabled small; then
4375         optflags=$cflags_size
4376     elif enabled optimizations; then
4377         optflags=$cflags_speed
4378     else
4379         optflags=$cflags_noopt
4380     fi
4381 fi
4382
4383 check_optflags(){
4384     check_cflags "$@"
4385     enabled lto && check_ldflags "$@"
4386 }
4387
4388
4389 if enabled lto; then
4390     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4391     check_cflags  -flto
4392     check_ldflags -flto $cpuflags
4393 fi
4394
4395 check_optflags $optflags
4396 check_optflags -fno-math-errno
4397 check_optflags -fno-signed-zeros
4398
4399 enabled ftrapv && check_cflags -ftrapv
4400
4401 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4402 int x;
4403 EOF
4404
4405
4406 if enabled icc; then
4407     # Just warnings, no remarks
4408     check_cflags -w1
4409     # -wd: Disable following warnings
4410     # 144, 167, 556: -Wno-pointer-sign
4411     # 188: enumerated type mixed with another type
4412     # 1292: attribute "foo" ignored
4413     # 1419: external declaration in primary source file
4414     # 10006: ignoring unknown option -fno-signed-zeros
4415     # 10148: ignoring unknown option -Wno-parentheses
4416     # 10156: ignoring option '-W'; no argument required
4417     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4418     # 11030: Warning unknown option --as-needed
4419     # 10156: ignoring option '-export'; no argument required
4420     check_ldflags -wd10156,11030
4421     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4422     enable ebp_available
4423     if enabled x86_32; then
4424         icc_version=$($cc -dumpversion)
4425         test ${icc_version%%.*} -ge 11 &&
4426             check_cflags -falign-stack=maintain-16-byte ||
4427             disable aligned_stack
4428     fi
4429 elif enabled ccc; then
4430     # disable some annoying warnings
4431     add_cflags -msg_disable bitnotint
4432     add_cflags -msg_disable mixfuncvoid
4433     add_cflags -msg_disable nonstandcast
4434     add_cflags -msg_disable unsupieee
4435 elif enabled gcc; then
4436     check_optflags -fno-tree-vectorize
4437     check_cflags -Werror=implicit-function-declaration
4438     check_cflags -Werror=missing-prototypes
4439     check_cflags -Werror=return-type
4440     check_cflags -Werror=vla
4441 elif enabled llvm_gcc; then
4442     check_cflags -mllvm -stack-alignment=16
4443 elif enabled clang; then
4444     check_cflags -mllvm -stack-alignment=16
4445     check_cflags -Qunused-arguments
4446     check_cflags -Werror=implicit-function-declaration
4447     check_cflags -Werror=missing-prototypes
4448     check_cflags -Werror=return-type
4449 elif enabled armcc; then
4450     # 2523: use of inline assembler is deprecated
4451     add_cflags -W${armcc_opt},--diag_suppress=2523
4452     add_cflags -W${armcc_opt},--diag_suppress=1207
4453     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4454     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4455     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4456     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4457 elif enabled tms470; then
4458     add_cflags -pds=824 -pds=837
4459 elif enabled pathscale; then
4460     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4461 elif enabled_any msvc icl; then
4462     enabled x86_32 && disable aligned_stack
4463     enabled_all x86_32 debug && add_cflags -Oy-
4464     if enabled icl; then
4465         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4466         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4467         # icl will pass the inline asm tests but inline asm is currently
4468         # not supported (build will fail)
4469         disable inline_asm
4470     fi
4471 fi
4472
4473 case $target_os in
4474     osf1)
4475         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4476     ;;
4477     plan9)
4478         add_cppflags -Dmain=plan9_main
4479     ;;
4480 esac
4481
4482 enable frame_thread_encoder
4483 enabled_any $THREADS_LIST      && enable threads
4484 enabled_any $ATOMICS_LIST      && enable atomics_native
4485
4486 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4487
4488 check_deps $CONFIG_LIST       \
4489            $CONFIG_EXTRA      \
4490            $HAVE_LIST         \
4491            $ALL_COMPONENTS    \
4492
4493
4494 if test $target_os = "haiku"; then
4495     disable memalign
4496     disable posix_memalign
4497 fi
4498
4499 ! enabled_any memalign posix_memalign aligned_malloc &&
4500     enabled_any $need_memalign && enable memalign_hack
4501
4502 # add_dep lib dep
4503 # -> enable ${lib}_deps_${dep}
4504 # -> add $dep to ${lib}_deps only once
4505 add_dep() {
4506     lib=$1
4507     dep=$2
4508     enabled "${lib}_deps_${dep}" && return 0
4509     enable  "${lib}_deps_${dep}"
4510     prepend "${lib}_deps" $dep
4511 }
4512
4513 # merge deps lib components
4514 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4515 merge_deps() {
4516     lib=$1
4517     shift
4518     for comp in $*; do
4519         enabled $comp || continue
4520         eval "dep=\"\$${comp}_deps\""
4521         for d in $dep; do
4522             add_dep $lib $d
4523         done
4524     done
4525 }
4526
4527 merge_deps libavfilter $FILTER_LIST
4528
4529 echo "install prefix            $prefix"
4530 echo "source path               $source_path"
4531 echo "C compiler                $cc"
4532 echo "ARCH                      $arch ($cpu)"
4533 if test "$build_suffix" != ""; then
4534     echo "build suffix              $build_suffix"
4535 fi
4536 if test "$progs_suffix" != ""; then
4537     echo "progs suffix              $progs_suffix"
4538 fi
4539 if test "$extra_version" != ""; then
4540     echo "version string suffix     $extra_version"
4541 fi
4542 echo "big-endian                ${bigendian-no}"
4543 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4544 if enabled x86; then
4545     echo "${yasmexe}                      ${yasm-no}"
4546     echo "MMX enabled               ${mmx-no}"
4547     echo "MMXEXT enabled            ${mmxext-no}"
4548     echo "3DNow! enabled            ${amd3dnow-no}"
4549     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4550     echo "SSE enabled               ${sse-no}"
4551     echo "SSSE3 enabled             ${ssse3-no}"
4552     echo "AVX enabled               ${avx-no}"
4553     echo "FMA4 enabled              ${fma4-no}"
4554     echo "i686 features enabled     ${i686-no}"
4555     echo "CMOV is fast              ${fast_cmov-no}"
4556     echo "EBX available             ${ebx_available-no}"
4557     echo "EBP available             ${ebp_available-no}"
4558 fi
4559 if enabled arm; then
4560     echo "ARMv5TE enabled           ${armv5te-no}"
4561     echo "ARMv6 enabled             ${armv6-no}"
4562     echo "ARMv6T2 enabled           ${armv6t2-no}"
4563     echo "VFP enabled               ${vfp-no}"
4564     echo "NEON enabled              ${neon-no}"
4565     echo "THUMB enabled             ${thumb-no}"
4566 fi
4567 if enabled mips; then
4568     echo "MIPS FPU enabled          ${mipsfpu-no}"
4569     echo "MIPS32R2 enabled          ${mips32r2-no}"
4570     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4571     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4572 fi
4573 if enabled ppc; then
4574     echo "AltiVec enabled           ${altivec-no}"
4575     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4576     echo "dcbzl available           ${dcbzl-no}"
4577 fi
4578 if enabled sparc; then
4579     echo "VIS enabled               ${vis-no}"
4580 fi
4581 echo "debug symbols             ${debug-no}"
4582 echo "strip symbols             ${stripping-no}"
4583 echo "optimize for size         ${small-no}"
4584 echo "optimizations             ${optimizations-no}"
4585 echo "static                    ${static-no}"
4586 echo "shared                    ${shared-no}"
4587 echo "postprocessing support    ${postproc-no}"
4588 echo "new filter support        ${avfilter-no}"
4589 echo "network support           ${network-no}"
4590 echo "threading support         ${thread_type-no}"
4591 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4592 echo "SDL support               ${sdl-no}"
4593 echo "opencl enabled            ${opencl-no}"
4594 echo "texi2html enabled         ${texi2html-no}"
4595 echo "perl enabled              ${perl-no}"
4596 echo "pod2man enabled           ${pod2man-no}"
4597 echo "makeinfo enabled          ${makeinfo-no}"
4598 test -n "$random_seed" &&
4599     echo "random seed               ${random_seed}"
4600 echo
4601
4602 echo "External libraries:"
4603 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4604 echo
4605
4606 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4607     echo "Enabled ${type}s:"
4608     eval list=\$$(toupper $type)_LIST
4609     print_enabled '_*' $list | print_3_columns
4610     echo
4611 done
4612
4613 license="LGPL version 2.1 or later"
4614 if enabled nonfree; then
4615     license="nonfree and unredistributable"
4616 elif enabled gplv3; then
4617     license="GPL version 3 or later"
4618 elif enabled lgplv3; then
4619     license="LGPL version 3 or later"
4620 elif enabled gpl; then
4621     license="GPL version 2 or later"
4622 fi
4623
4624 echo "License: $license"
4625
4626 echo "Creating config.mak, config.h, and doc/config.texi..."
4627
4628 test -e Makefile || $ln_s "$source_path/Makefile" .
4629
4630 enabled stripping || strip="echo skipping strip"
4631
4632 config_files="$TMPH config.mak doc/config.texi"
4633
4634 cat > config.mak <<EOF
4635 # Automatically generated by configure - do not modify!
4636 ifndef FFMPEG_CONFIG_MAK
4637 FFMPEG_CONFIG_MAK=1
4638 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4639 prefix=$prefix
4640 LIBDIR=\$(DESTDIR)$libdir
4641 SHLIBDIR=\$(DESTDIR)$shlibdir
4642 INCDIR=\$(DESTDIR)$incdir
4643 BINDIR=\$(DESTDIR)$bindir
4644 DATADIR=\$(DESTDIR)$datadir
4645 MANDIR=\$(DESTDIR)$mandir
4646 SRC_PATH=$source_path
4647 ifndef MAIN_MAKEFILE
4648 SRC_PATH:=\$(SRC_PATH:.%=..%)
4649 endif
4650 CC_IDENT=$cc_ident
4651 ARCH=$arch
4652 CC=$cc
4653 CXX=$cxx
4654 AS=$as
4655 LD=$ld
4656 DEPCC=$dep_cc
4657 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4658 DEPAS=$as
4659 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4660 YASM=$yasmexe
4661 DEPYASM=$yasmexe
4662 AR=$ar
4663 ARFLAGS=$arflags
4664 AR_O=$ar_o
4665 RANLIB=$ranlib
4666 CP=cp -p
4667 LN_S=$ln_s
4668 STRIP=$strip
4669 CPPFLAGS=$CPPFLAGS
4670 CFLAGS=$CFLAGS
4671 CXXFLAGS=$CXXFLAGS
4672 ASFLAGS=$ASFLAGS
4673 AS_C=$AS_C
4674 AS_O=$AS_O
4675 CC_C=$CC_C
4676 CC_E=$CC_E
4677 CC_O=$CC_O
4678 CXX_C=$CXX_C
4679 CXX_O=$CXX_O
4680 LD_O=$LD_O
4681 LD_LIB=$LD_LIB
4682 LD_PATH=$LD_PATH
4683 DLLTOOL=$dlltool
4684 LDFLAGS=$LDFLAGS
4685 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4686 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4687 YASMFLAGS=$YASMFLAGS
4688 BUILDSUF=$build_suffix
4689 PROGSSUF=$progs_suffix
4690 FULLNAME=$FULLNAME
4691 LIBPREF=$LIBPREF
4692 LIBSUF=$LIBSUF
4693 LIBNAME=$LIBNAME
4694 SLIBPREF=$SLIBPREF
4695 SLIBSUF=$SLIBSUF
4696 EXESUF=$EXESUF
4697 EXTRA_VERSION=$extra_version
4698 CCDEP=$CCDEP
4699 CXXDEP=$CXXDEP
4700 CCDEP_FLAGS=$CCDEP_FLAGS
4701 ASDEP=$ASDEP
4702 ASDEP_FLAGS=$ASDEP_FLAGS
4703 CC_DEPFLAGS=$CC_DEPFLAGS
4704 AS_DEPFLAGS=$AS_DEPFLAGS
4705 HOSTCC=$host_cc
4706 HOSTLD=$host_ld
4707 HOSTCFLAGS=$host_cflags
4708 HOSTCPPFLAGS=$host_cppflags
4709 HOSTEXESUF=$HOSTEXESUF
4710 HOSTLDFLAGS=$host_ldflags
4711 HOSTLIBS=$host_libs
4712 DEPHOSTCC=$host_cc
4713 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4714 HOSTCCDEP=$HOSTCCDEP
4715 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4716 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4717 HOSTCC_C=$HOSTCC_C
4718 HOSTCC_O=$HOSTCC_O
4719 HOSTLD_O=$HOSTLD_O
4720 TARGET_EXEC=$target_exec $target_exec_args
4721 TARGET_PATH=$target_path
4722 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4723 LIBS-ffplay=$sdl_libs
4724 CFLAGS-ffplay=$sdl_cflags
4725 ZLIB=$($ldflags_filter -lz)
4726 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4727 EXTRALIBS=$extralibs
4728 COMPAT_OBJS=$compat_objs
4729 EXEOBJS=$exeobjs
4730 INSTALL=$install
4731 LIBTARGET=${LIBTARGET}
4732 SLIBNAME=${SLIBNAME}
4733 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4734 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4735 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4736 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4737 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4738 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4739 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4740 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4741 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4742 NOREDZONE_FLAGS=$noredzone_flags
4743 EOF
4744
4745 get_version(){
4746     lcname=lib${1}
4747     name=$(toupper $lcname)
4748     file=$source_path/$lcname/version.h
4749     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4750     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4751     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4752     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4753     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4754 }
4755
4756 map 'get_version $v' $LIBRARY_LIST
4757
4758 cat > $TMPH <<EOF
4759 /* Automatically generated by configure - do not modify! */
4760 #ifndef FFMPEG_CONFIG_H
4761 #define FFMPEG_CONFIG_H
4762 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4763 #define FFMPEG_LICENSE "$(c_escape $license)"
4764 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4765 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4766 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4767 #define av_restrict $_restrict
4768 #define EXTERN_PREFIX "${extern_prefix}"
4769 #define EXTERN_ASM ${extern_prefix}
4770 #define SLIBSUF "$SLIBSUF"
4771 #define HAVE_MMX2 HAVE_MMXEXT
4772 EOF
4773
4774 test -n "$assert_level" &&
4775     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4776
4777 test -n "$malloc_prefix" &&
4778     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4779
4780 if enabled yasm; then
4781     append config_files $TMPASM
4782     printf '' >$TMPASM
4783 fi
4784
4785 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4786
4787
4788 mkdir -p doc
4789 mkdir -p tests
4790 echo "@c auto-generated by configure" > doc/config.texi
4791
4792 print_config ARCH_   "$config_files" $ARCH_LIST
4793 print_config HAVE_   "$config_files" $HAVE_LIST
4794 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4795                                      $CONFIG_EXTRA      \
4796                                      $ALL_COMPONENTS    \
4797
4798 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4799 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4800
4801 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4802 cp_if_changed $TMPH config.h
4803 touch .config
4804
4805 enabled yasm && cp_if_changed $TMPASM config.asm
4806
4807 cat > $TMPH <<EOF
4808 /* Generated by ffconf */
4809 #ifndef AVUTIL_AVCONFIG_H
4810 #define AVUTIL_AVCONFIG_H
4811 EOF
4812
4813 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4814
4815 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4816
4817 cp_if_changed $TMPH libavutil/avconfig.h
4818
4819 if test -n "$WARNINGS"; then
4820     printf "\n$WARNINGS"
4821     enabled fatal_warnings && exit 1
4822 fi
4823
4824 # build pkg-config files
4825
4826 pkgconfig_generate(){
4827     name=$1
4828     shortname=${name#lib}${build_suffix}
4829     comment=$2
4830     version=$3
4831     libs=$4
4832     requires=$5
4833     enabled ${name#lib} || return 0
4834 &