build: Add missing idctdsp dependency for clearvideo
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
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
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
239   --enable-libopencv       enable video filtering via libopencv [no]
240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
242   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librsvg         enable SVG rasterization via librsvg [no]
246   --enable-librubberband   enable rubberband needed for rubberband filter [no]
247   --enable-librtmp         enable RTMP[E] support via librtmp [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
258   --enable-libvidstab      enable video stabilization using vid.stab [no]
259   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
260   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
261                            native implementation exists [no]
262   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
263   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
264   --enable-libwebp         enable WebP encoding via libwebp [no]
265   --enable-libx264         enable H.264 encoding via x264 [no]
266   --enable-libx265         enable HEVC encoding via x265 [no]
267   --enable-libxavs         enable AVS encoding via xavs [no]
268   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
269   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
270   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
271   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
272   --enable-libxvid         enable Xvid encoding via xvidcore,
273                            native MPEG-4/Xvid encoder exists [no]
274   --enable-libzimg         enable z.lib, needed for zscale filter [no]
275   --enable-libzmq          enable message passing via libzmq [no]
276   --enable-libzvbi         enable teletext support via libzvbi [no]
277   --disable-lzma           disable lzma [autodetect]
278   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
279   --enable-mediacodec      enable Android MediaCodec support [no]
280   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
281   --enable-openal          enable OpenAL 1.1 capture support [no]
282   --enable-opencl          enable OpenCL code
283   --enable-opengl          enable OpenGL rendering [no]
284   --enable-openssl         enable openssl, needed for https support
285                            if gnutls is not used [no]
286   --disable-schannel       disable SChannel SSP, needed for TLS support on
287                            Windows if openssl and gnutls are not used [autodetect]
288   --disable-sdl2           disable sdl2 [autodetect]
289   --disable-securetransport disable Secure Transport, needed for TLS support
290                            on OSX if openssl and gnutls are not used [autodetect]
291   --disable-xlib           disable xlib [autodetect]
292   --disable-zlib           disable zlib [autodetect]
293
294   The following libraries provide various hardware acceleration features:
295   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
296   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
297   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
298   --disable-cuvid          disable Nvidia CUVID support [autodetect]
299   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
300   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
301   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
302   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
303   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
304   --disable-nvenc          disable Nvidia video encoding code [autodetect]
305   --enable-omx             enable OpenMAX IL code [no]
306   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
307   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
308   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
309   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
310   --disable-videotoolbox   disable VideoToolbox code [autodetect]
311
312 Toolchain options:
313   --arch=ARCH              select architecture [$arch]
314   --cpu=CPU                select the minimum required CPU (affects
315                            instruction selection, may crash on older CPUs)
316   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
317   --progs-suffix=SUFFIX    program name suffix []
318   --enable-cross-compile   assume a cross-compiler is used
319   --sysroot=PATH           root of cross-build tree
320   --sysinclude=PATH        location of cross-build system headers
321   --target-os=OS           compiler targets OS [$target_os]
322   --target-exec=CMD        command to run executables on target
323   --target-path=DIR        path to view of build directory on target
324   --target-samples=DIR     path to samples directory on target
325   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
326   --toolchain=NAME         set tool defaults according to NAME
327   --nm=NM                  use nm tool NM [$nm_default]
328   --ar=AR                  use archive tool AR [$ar_default]
329   --as=AS                  use assembler AS [$as_default]
330   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
331   --strip=STRIP            use strip tool STRIP [$strip_default]
332   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
333   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
334   --cc=CC                  use C compiler CC [$cc_default]
335   --cxx=CXX                use C compiler CXX [$cxx_default]
336   --objcc=OCC              use ObjC compiler OCC [$cc_default]
337   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
338   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
339   --ld=LD                  use linker LD [$ld_default]
340   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
341   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
342   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
343   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
344   --host-cc=HOSTCC         use host C compiler HOSTCC
345   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
346   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
347   --host-ld=HOSTLD         use host linker HOSTLD
348   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
349   --host-libs=HLIBS        use libs HLIBS when linking for host
350   --host-os=OS             compiler host OS [$target_os]
351   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
352   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
353   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
354   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
355   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
356   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
357   --extra-libs=ELIBS       add ELIBS [$ELIBS]
358   --extra-version=STRING   version string suffix []
359   --optflags=OPTFLAGS      override optimization-related compiler flags
360   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
361   --build-suffix=SUFFIX    library name suffix []
362   --enable-pic             build position-independent code
363   --enable-thumb           compile for Thumb instruction set
364   --enable-lto             use link-time optimization
365   --env="ENV=override"     override the environment variables
366
367 Advanced options (experts only):
368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
369   --custom-allocator=NAME  use a supported custom allocator
370   --disable-symver         disable symbol versioning
371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
372   --disable-safe-bitstream-reader
373                            disable buffer boundary checking in bitreaders
374                            (faster, but may crash)
375   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
376
377 Optimization options (experts only):
378   --disable-asm            disable all assembly optimizations
379   --disable-altivec        disable AltiVec optimizations
380   --disable-vsx            disable VSX optimizations
381   --disable-power8         disable POWER8 optimizations
382   --disable-amd3dnow       disable 3DNow! optimizations
383   --disable-amd3dnowext    disable 3DNow! extended optimizations
384   --disable-mmx            disable MMX optimizations
385   --disable-mmxext         disable MMXEXT optimizations
386   --disable-sse            disable SSE optimizations
387   --disable-sse2           disable SSE2 optimizations
388   --disable-sse3           disable SSE3 optimizations
389   --disable-ssse3          disable SSSE3 optimizations
390   --disable-sse4           disable SSE4 optimizations
391   --disable-sse42          disable SSE4.2 optimizations
392   --disable-avx            disable AVX optimizations
393   --disable-xop            disable XOP optimizations
394   --disable-fma3           disable FMA3 optimizations
395   --disable-fma4           disable FMA4 optimizations
396   --disable-avx2           disable AVX2 optimizations
397   --disable-aesni          disable AESNI optimizations
398   --disable-armv5te        disable armv5te optimizations
399   --disable-armv6          disable armv6 optimizations
400   --disable-armv6t2        disable armv6t2 optimizations
401   --disable-vfp            disable VFP optimizations
402   --disable-neon           disable NEON optimizations
403   --disable-inline-asm     disable use of inline assembly
404   --disable-yasm           disable use of nasm/yasm assembly
405   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
406   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
407   --disable-msa            disable MSA optimizations
408   --disable-mipsfpu        disable floating point MIPS optimizations
409   --disable-mmi            disable Loongson SIMD optimizations
410   --disable-fast-unaligned consider unaligned accesses slow
411
412 Developer options (useful when working on FFmpeg itself):
413   --disable-debug          disable debugging symbols
414   --enable-debug=LEVEL     set the debug level [$debuglevel]
415   --disable-optimizations  disable compiler optimizations
416   --enable-extra-warnings  enable more compiler warnings
417   --disable-stripping      disable stripping of executables and shared libraries
418   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
419                            2 causes a slowdown at runtime.
420   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
421   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
422                            leaks and errors, using the specified valgrind binary.
423                            Cannot be combined with --target-exec
424   --enable-ftrapv          Trap arithmetic overflows
425   --samples=PATH           location of test samples for FATE, if not set use
426                            \$FATE_SAMPLES at make invocation time.
427   --enable-neon-clobber-test check NEON registers for clobbering (should be
428                            used only for debugging purposes)
429   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
430                            should be used only for debugging purposes)
431   --enable-random          randomly enable/disable components
432   --disable-random
433   --enable-random=LIST     randomly enable/disable specific components or
434   --disable-random=LIST    component groups. LIST is a comma-separated list
435                            of NAME[:PROB] entries where NAME is a component
436                            (group) and PROB the probability associated with
437                            NAME (default 0.5).
438   --random-seed=VALUE      seed value for --enable/disable-random
439   --disable-valgrind-backtrace do not print a backtrace under Valgrind
440                            (only applies to --disable-optimizations builds)
441   --enable-osfuzz          Enable building fuzzer tool
442   --libfuzzer=PATH         path to libfuzzer
443   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
444                            in the name) of tests whose result is ignored
445
446 NOTE: Object files are built at the place where configure is launched.
447 EOF
448   exit 0
449 }
450
451 quotes='""'
452 if test -t 1 && which tput >/dev/null 2>&1; then
453     ncolors=$(tput colors)
454     if test -n "$ncolors" && test $ncolors -ge 8; then
455         bold_color=$(tput bold)
456         warn_color=$(tput setaf 3)
457         error_color=$(tput setaf 1)
458         reset_color=$(tput sgr0)
459     fi
460     # 72 used instead of 80 since that's the default of pr
461     ncols=$(tput cols)
462 fi
463 : ${ncols:=72}
464
465 log(){
466     echo "$@" >> $logfile
467 }
468
469 log_file(){
470     log BEGIN $1
471     pr -n -t $1 >> $logfile
472     log END $1
473 }
474
475 warn(){
476     log "WARNING: $*"
477     WARNINGS="${WARNINGS}WARNING: $*\n"
478 }
479
480 die(){
481     log "$@"
482     echo "$error_color$bold_color$@$reset_color"
483     cat <<EOF
484
485 If you think configure made a mistake, make sure you are using the latest
486 version from Git.  If the latest version fails, report the problem to the
487 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
488 EOF
489     if disabled logging; then
490         cat <<EOF
491 Rerun configure with logging enabled (do not use --disable-logging), and
492 include the log this produces with your report.
493 EOF
494     else
495         cat <<EOF
496 Include the log file "$logfile" produced by configure as this will help
497 solve the problem.
498 EOF
499     fi
500     exit 1
501 }
502
503 # Avoid locale weirdness, besides we really just want to translate ASCII.
504 toupper(){
505     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
506 }
507
508 tolower(){
509     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
510 }
511
512 c_escape(){
513     echo "$*" | sed 's/["\\]/\\\0/g'
514 }
515
516 sh_quote(){
517     v=$(echo "$1" | sed "s/'/'\\\\''/g")
518     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
519     echo "$v"
520 }
521
522 cleanws(){
523     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
524 }
525
526 filter(){
527     pat=$1
528     shift
529     for v; do
530         eval "case $v in $pat) printf '%s ' $v ;; esac"
531     done
532 }
533
534 filter_out(){
535     pat=$1
536     shift
537     for v; do
538         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
539     done
540 }
541
542 map(){
543     m=$1
544     shift
545     for v; do eval $m; done
546 }
547
548 add_suffix(){
549     suffix=$1
550     shift
551     for v; do echo ${v}${suffix}; done
552 }
553
554 set_all(){
555     value=$1
556     shift
557     for var in $*; do
558         eval $var=$value
559     done
560 }
561
562 set_weak(){
563     value=$1
564     shift
565     for var; do
566         eval : \${$var:=$value}
567     done
568 }
569
570 sanitize_var_name(){
571     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
572 }
573
574 set_safe(){
575     var=$1
576     shift
577     eval $(sanitize_var_name "$var")='$*'
578 }
579
580 get_safe(){
581     eval echo \$$(sanitize_var_name "$1")
582 }
583
584 pushvar(){
585     for pvar in $*; do
586         eval level=\${${pvar}_level:=0}
587         eval ${pvar}_${level}="\$$pvar"
588         eval ${pvar}_level=$(($level+1))
589     done
590 }
591
592 popvar(){
593     for pvar in $*; do
594         eval level=\${${pvar}_level:-0}
595         test $level = 0 && continue
596         eval level=$(($level-1))
597         eval $pvar="\${${pvar}_${level}}"
598         eval ${pvar}_level=$level
599         eval unset ${pvar}_${level}
600     done
601 }
602
603 request(){
604     for var in $*; do
605         eval ${var}_requested=yes
606         eval $var=
607     done
608 }
609
610 enable(){
611     set_all yes $*
612 }
613
614 disable(){
615     set_all no $*
616 }
617
618 enable_weak(){
619     set_weak yes $*
620 }
621
622 disable_weak(){
623     set_weak no $*
624 }
625
626 enable_safe(){
627     for var; do
628         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
629     done
630 }
631
632 disable_safe(){
633     for var; do
634         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
635     done
636 }
637
638 do_enable_deep(){
639     for var; do
640         enabled $var && continue
641         eval sel="\$${var}_select"
642         eval sgs="\$${var}_suggest"
643         pushvar var sgs
644         enable_deep $sel
645         popvar sgs
646         enable_deep_weak $sgs
647         popvar var
648     done
649 }
650
651 enable_deep(){
652     do_enable_deep $*
653     enable $*
654 }
655
656 enable_deep_weak(){
657     for var; do
658         disabled $var && continue
659         pushvar var
660         do_enable_deep $var
661         popvar var
662         enable_weak $var
663     done
664 }
665
666 requested(){
667     test "${1#!}" = "$1" && op='=' || op=!=
668     eval test "x\$${1#!}_requested" $op "xyes"
669 }
670
671 enabled(){
672     test "${1#!}" = "$1" && op='=' || op=!=
673     eval test "x\$${1#!}" $op "xyes"
674 }
675
676 disabled(){
677     test "${1#!}" = "$1" && op='=' || op=!=
678     eval test "x\$${1#!}" $op "xno"
679 }
680
681 enabled_all(){
682     for opt; do
683         enabled $opt || return 1
684     done
685 }
686
687 disabled_all(){
688     for opt; do
689         disabled $opt || return 1
690     done
691 }
692
693 enabled_any(){
694     for opt; do
695         enabled $opt && return 0
696     done
697 }
698
699 disabled_any(){
700     for opt; do
701         disabled $opt && return 0
702     done
703     return 1
704 }
705
706 set_default(){
707     for opt; do
708         eval : \${$opt:=\$${opt}_default}
709     done
710 }
711
712 is_in(){
713     value=$1
714     shift
715     for var in $*; do
716         [ $var = $value ] && return 0
717     done
718     return 1
719 }
720
721 do_check_deps(){
722     for cfg; do
723         cfg="${cfg#!}"
724         enabled ${cfg}_checking && die "Circular dependency for $cfg."
725         disabled ${cfg}_checking && continue
726         enable ${cfg}_checking
727         append allopts $cfg
728
729         eval dep_all="\$${cfg}_deps"
730         eval dep_any="\$${cfg}_deps_any"
731         eval dep_sel="\$${cfg}_select"
732         eval dep_sgs="\$${cfg}_suggest"
733         eval dep_ifa="\$${cfg}_if"
734         eval dep_ifn="\$${cfg}_if_any"
735
736         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
737         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
738         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
739
740         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
741         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
742         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
743         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
744         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
745
746         if enabled $cfg; then
747             enable_deep $dep_sel
748             enable_deep_weak $dep_sgs
749         fi
750
751         disable ${cfg}_checking
752     done
753 }
754
755 check_deps(){
756     unset allopts
757
758     do_check_deps "$@"
759
760     for cfg in $allopts; do
761         enabled $cfg || continue
762         eval dep_extralibs="\$${cfg}_extralibs"
763         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
764     done
765 }
766
767 print_config(){
768     pfx=$1
769     files=$2
770     shift 2
771     map 'eval echo "$v \${$v:-no}"' "$@" |
772     awk "BEGIN { split(\"$files\", files) }
773         {
774             c = \"$pfx\" toupper(\$1);
775             v = \$2;
776             sub(/yes/, 1, v);
777             sub(/no/,  0, v);
778             for (f in files) {
779                 file = files[f];
780                 if (file ~ /\\.h\$/) {
781                     printf(\"#define %s %d\\n\", c, v) >>file;
782                 } else if (file ~ /\\.asm\$/) {
783                     printf(\"%%define %s %d\\n\", c, v) >>file;
784                 } else if (file ~ /\\.mak\$/) {
785                     n = -v ? \"\" : \"!\";
786                     printf(\"%s%s=yes\\n\", n, c) >>file;
787                 } else if (file ~ /\\.texi\$/) {
788                     pre = -v ? \"\" : \"@c \";
789                     yesno = \$2;
790                     c2 = tolower(c);
791                     gsub(/_/, \"-\", c2);
792                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
793                 }
794             }
795         }"
796 }
797
798 print_enabled(){
799     suf=$1
800     shift
801     for v; do
802         enabled $v && printf "%s\n" ${v%$suf}
803     done
804 }
805
806 append(){
807     var=$1
808     shift
809     eval "$var=\"\$$var $*\""
810 }
811
812 prepend(){
813     var=$1
814     shift
815     eval "$var=\"$* \$$var\""
816 }
817
818 unique(){
819     var=$1
820     uniq_list=""
821     for tok in $(eval echo \$$var); do
822         uniq_list="$(filter_out $tok $uniq_list) $tok"
823     done
824     eval "$var=\"${uniq_list}\""
825 }
826
827 add_cppflags(){
828     append CPPFLAGS "$@"
829 }
830
831 add_cflags(){
832     append CFLAGS $($cflags_filter "$@")
833 }
834
835 add_cflags_headers(){
836     append CFLAGS_HEADERS $($cflags_filter "$@")
837 }
838
839 add_cxxflags(){
840     append CXXFLAGS $($cflags_filter "$@")
841 }
842
843 add_asflags(){
844     append ASFLAGS $($asflags_filter "$@")
845 }
846
847 add_objcflags(){
848     append OBJCFLAGS $($objcflags_filter "$@")
849 }
850
851 add_ldflags(){
852     append LDFLAGS $($ldflags_filter "$@")
853 }
854
855 add_ldexeflags(){
856     append LDEXEFLAGS $($ldflags_filter "$@")
857 }
858
859 add_ldlibflags(){
860     append LDLIBFLAGS $($ldflags_filter "$@")
861 }
862
863 add_stripflags(){
864     append ASMSTRIPFLAGS "$@"
865 }
866
867 add_extralibs(){
868     prepend extralibs $($ldflags_filter "$@")
869 }
870
871 add_host_cppflags(){
872     append host_cppflags "$@"
873 }
874
875 add_host_cflags(){
876     append host_cflags $($host_cflags_filter "$@")
877 }
878
879 add_host_ldflags(){
880     append host_ldflags $($host_ldflags_filter "$@")
881 }
882
883 add_compat(){
884     append compat_objs $1
885     shift
886     map 'add_cppflags -D$v' "$@"
887 }
888
889 check_cmd(){
890     log "$@"
891     "$@" >> $logfile 2>&1
892 }
893
894 check_stat(){
895     log check_stat "$@"
896     stat "$1" >> $logfile 2>&1
897 }
898
899 cc_o(){
900     eval printf '%s\\n' $CC_O
901 }
902
903 cc_e(){
904     eval printf '%s\\n' $CC_E
905 }
906
907 check_cc(){
908     log check_cc "$@"
909     cat > $TMPC
910     log_file $TMPC
911     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
912 }
913
914 check_cxx(){
915     log check_cxx "$@"
916     cat > $TMPCPP
917     log_file $TMPCPP
918     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
919 }
920
921 check_objcc(){
922     log check_objcc "$@"
923     cat > $TMPM
924     log_file $TMPM
925     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
926 }
927
928 check_cpp(){
929     log check_cpp "$@"
930     cat > $TMPC
931     log_file $TMPC
932     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
933 }
934
935 as_o(){
936     eval printf '%s\\n' $AS_O
937 }
938
939 check_as(){
940     log check_as "$@"
941     cat > $TMPS
942     log_file $TMPS
943     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
944 }
945
946 check_inline_asm(){
947     log check_inline_asm "$@"
948     name="$1"
949     code="$2"
950     shift 2
951     disable $name
952     check_cc "$@" <<EOF && enable $name
953 void foo(void){ __asm__ volatile($code); }
954 EOF
955 }
956
957 check_inline_asm_flags(){
958     log check_inline_asm_flags "$@"
959     name="$1"
960     code="$2"
961     flags=''
962     shift 2
963     while [ "$1" != "" ]; do
964       append flags $1
965       shift
966     done;
967     disable $name
968     cat > $TMPC <<EOF
969 void foo(void){ __asm__ volatile($code); }
970 EOF
971     log_file $TMPC
972     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
973     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
974 }
975
976 check_insn(){
977     log check_insn "$@"
978     check_inline_asm ${1}_inline "\"$2\""
979     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
980 }
981
982 check_yasm(){
983     log check_yasm "$@"
984     echo "$1" > $TMPS
985     log_file $TMPS
986     shift 1
987     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
988 }
989
990 ld_o(){
991     eval printf '%s\\n' $LD_O
992 }
993
994 check_ld(){
995     log check_ld "$@"
996     type=$1
997     shift 1
998     flags=$(filter_out '-l*|*.so' $@)
999     libs=$(filter '-l*|*.so' $@)
1000     check_$type $($cflags_filter $flags) || return
1001     flags=$($ldflags_filter $flags)
1002     libs=$($ldflags_filter $libs)
1003     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1004 }
1005
1006 print_include(){
1007     hdr=$1
1008     test "${hdr%.h}" = "${hdr}" &&
1009         echo "#include $hdr"    ||
1010         echo "#include <$hdr>"
1011 }
1012
1013 check_code(){
1014     log check_code "$@"
1015     check=$1
1016     headers=$2
1017     code=$3
1018     shift 3
1019     {
1020         for hdr in $headers; do
1021             print_include $hdr
1022         done
1023         echo "int main(void) { $code; return 0; }"
1024     } | check_$check "$@"
1025 }
1026
1027 check_cppflags(){
1028     log check_cppflags "$@"
1029     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1030 int x;
1031 EOF
1032 }
1033
1034 test_cflags(){
1035     log test_cflags "$@"
1036     set -- $($cflags_filter "$@")
1037     check_cc "$@" <<EOF
1038 int x;
1039 EOF
1040 }
1041
1042 check_cflags(){
1043     log check_cflags "$@"
1044     test_cflags "$@" && add_cflags "$@"
1045 }
1046
1047 check_cxxflags(){
1048     log check_cxxflags "$@"
1049     set -- $($cflags_filter "$@")
1050     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1051 int x;
1052 EOF
1053 }
1054
1055 test_objcflags(){
1056     log test_objcflags "$@"
1057     set -- $($objcflags_filter "$@")
1058     check_objcc "$@" <<EOF
1059 int x;
1060 EOF
1061 }
1062
1063 check_objcflags(){
1064     log check_objcflags "$@"
1065     test_objcflags "$@" && add_objcflags "$@"
1066 }
1067
1068 test_ldflags(){
1069     log test_ldflags "$@"
1070     check_ld "cc" "$@" <<EOF
1071 int main(void){ return 0; }
1072 EOF
1073 }
1074
1075 check_ldflags(){
1076     log check_ldflags "$@"
1077     test_ldflags "$@" && add_ldflags "$@"
1078 }
1079
1080 test_stripflags(){
1081     log test_stripflags "$@"
1082     # call check_cc to get a fresh TMPO
1083     check_cc <<EOF
1084 int main(void) { return 0; }
1085 EOF
1086     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1087 }
1088
1089 check_stripflags(){
1090     log check_stripflags "$@"
1091     test_stripflags "$@" && add_stripflags "$@"
1092 }
1093
1094 check_header(){
1095     log check_header "$@"
1096     header=$1
1097     shift
1098     disable_safe $header
1099     check_cpp "$@" <<EOF && enable_safe $header
1100 #include <$header>
1101 int x;
1102 EOF
1103 }
1104
1105 check_header_objcc(){
1106     log check_header_objcc "$@"
1107     rm -f -- "$TMPO"
1108     header=$1
1109     shift
1110     disable_safe $header
1111     {
1112        echo "#include <$header>"
1113        echo "int main(void) { return 0; }"
1114     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1115 }
1116
1117 check_func(){
1118     log check_func "$@"
1119     func=$1
1120     shift
1121     disable $func
1122     check_ld "cc" "$@" <<EOF && enable $func
1123 extern int $func();
1124 int main(void){ $func(); }
1125 EOF
1126 }
1127
1128 check_complexfunc(){
1129     log check_complexfunc "$@"
1130     func=$1
1131     narg=$2
1132     shift 2
1133     test $narg = 2 && args="f, g" || args="f * I"
1134     disable $func
1135     check_ld "cc" "$@" <<EOF && enable $func
1136 #include <complex.h>
1137 #include <math.h>
1138 float foo(complex float f, complex float g) { return $func($args); }
1139 int main(void){ return (int) foo; }
1140 EOF
1141 }
1142
1143 check_mathfunc(){
1144     log check_mathfunc "$@"
1145     func=$1
1146     narg=$2
1147     shift 2
1148     test $narg = 2 && args="f, g" || args="f"
1149     disable $func
1150     check_ld "cc" "$@" <<EOF && enable $func
1151 #include <math.h>
1152 float foo(float f, float g) { return $func($args); }
1153 int main(void){ return (int) foo; }
1154 EOF
1155 }
1156
1157 check_func_headers(){
1158     log check_func_headers "$@"
1159     headers=$1
1160     funcs=$2
1161     shift 2
1162     {
1163         for hdr in $headers; do
1164             print_include $hdr
1165         done
1166         echo "#include <stdint.h>"
1167         for func in $funcs; do
1168             echo "long check_$func(void) { return (long) $func; }"
1169         done
1170         echo "int main(void) { int ret = 0;"
1171         # LTO could optimize out the test functions without this
1172         for func in $funcs; do
1173             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1174         done
1175         echo "return ret; }"
1176     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1177 }
1178
1179 check_class_headers_cpp(){
1180     log check_class_headers_cpp "$@"
1181     headers=$1
1182     classes=$2
1183     shift 2
1184     {
1185         for hdr in $headers; do
1186             echo "#include <$hdr>"
1187         done
1188         echo "int main(void) { "
1189         i=1
1190         for class in $classes; do
1191             echo "$class obj$i;"
1192             i=$(expr $i + 1)
1193         done
1194         echo "return 0; }"
1195     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1196 }
1197
1198 check_cpp_condition(){
1199     log check_cpp_condition "$@"
1200     header=$1
1201     condition=$2
1202     shift 2
1203     check_cpp "$@" <<EOF
1204 #include <$header>
1205 #if !($condition)
1206 #error "unsatisfied condition: $condition"
1207 #endif
1208 EOF
1209 }
1210
1211 test_cflags_cc(){
1212     log test_cflags_cc "$@"
1213     flags=$1
1214     header=$2
1215     condition=$3
1216     shift 3
1217     set -- $($cflags_filter "$flags")
1218     check_cc "$@" <<EOF
1219 #include <$header>
1220 #if !($condition)
1221 #error "unsatisfied condition: $condition"
1222 #endif
1223 EOF
1224 }
1225
1226 check_lib(){
1227     log check_lib "$@"
1228     name="$1"
1229     headers="$2"
1230     funcs="$3"
1231     shift 3
1232     disable $name
1233     check_func_headers "$headers" "$funcs" "$@" &&
1234         enable $name && add_extralibs "$@"
1235 }
1236
1237 check_lib_cpp(){
1238     log check_lib_cpp "$@"
1239     headers="$1"
1240     classes="$2"
1241     shift 2
1242     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1243 }
1244
1245 check_pkg_config(){
1246     log check_pkg_config "$@"
1247     pkg_version="$1"
1248     pkg="${1%% *}"
1249     headers="$2"
1250     funcs="$3"
1251     shift 3
1252     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1253     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1254     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1255     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1256         set_safe "${pkg}_cflags"    $pkg_cflags &&
1257         set_safe "${pkg}_extralibs" $pkg_libs
1258 }
1259
1260 check_exec(){
1261     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1262 }
1263
1264 check_exec_crash(){
1265     log check_exec_crash "$@"
1266     code=$(cat)
1267
1268     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1269     # are safe but may not be available everywhere.  Thus we use
1270     # raise(SIGTERM) instead.  The check is run in a subshell so we
1271     # can redirect the "Terminated" message from the shell.  SIGBUS
1272     # is not defined by standard C so it is used conditionally.
1273
1274     (check_exec "$@") >> $logfile 2>&1 <<EOF
1275 #include <signal.h>
1276 static void sighandler(int sig){
1277     raise(SIGTERM);
1278 }
1279 int foo(void){
1280     $code
1281 }
1282 int (*func_ptr)(void) = foo;
1283 int main(void){
1284     signal(SIGILL, sighandler);
1285     signal(SIGFPE, sighandler);
1286     signal(SIGSEGV, sighandler);
1287 #ifdef SIGBUS
1288     signal(SIGBUS, sighandler);
1289 #endif
1290     return func_ptr();
1291 }
1292 EOF
1293 }
1294
1295 check_type(){
1296     log check_type "$@"
1297     headers=$1
1298     type=$2
1299     shift 2
1300     disable_safe "$type"
1301     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1302 }
1303
1304 check_struct(){
1305     log check_struct "$@"
1306     headers=$1
1307     struct=$2
1308     member=$3
1309     shift 3
1310     disable_safe "${struct}_${member}"
1311     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1312         enable_safe "${struct}_${member}"
1313 }
1314
1315 check_builtin(){
1316     log check_builtin "$@"
1317     name=$1
1318     headers=$2
1319     builtin=$3
1320     shift 3
1321     disable "$name"
1322     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1323 }
1324
1325 check_compile_assert(){
1326     log check_compile_assert "$@"
1327     name=$1
1328     headers=$2
1329     condition=$3
1330     shift 3
1331     disable "$name"
1332     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1333 }
1334
1335 require(){
1336     log require "$@"
1337     name_version="$1"
1338     name="${1%% *}"
1339     headers="$2"
1340     func="$3"
1341     shift 3
1342     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1343 }
1344
1345 require_cpp(){
1346     name="$1"
1347     headers="$2"
1348     classes="$3"
1349     shift 3
1350     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1351 }
1352
1353 use_pkg_config(){
1354     log use_pkg_config "$@"
1355     pkg="$1"
1356     check_pkg_config "$@" || return 1
1357     add_cflags    $(get_safe "${pkg}_cflags")
1358     add_extralibs $(get_safe "${pkg}_extralibs")
1359 }
1360
1361 require_pkg_config(){
1362     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1363 }
1364
1365 hostcc_e(){
1366     eval printf '%s\\n' $HOSTCC_E
1367 }
1368
1369 hostcc_o(){
1370     eval printf '%s\\n' $HOSTCC_O
1371 }
1372
1373 check_host_cc(){
1374     log check_host_cc "$@"
1375     cat > $TMPC
1376     log_file $TMPC
1377     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1378 }
1379
1380 check_host_cpp(){
1381     log check_host_cpp "$@"
1382     cat > $TMPC
1383     log_file $TMPC
1384     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1385 }
1386
1387 check_host_cppflags(){
1388     log check_host_cppflags "$@"
1389     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1390 int x;
1391 EOF
1392 }
1393
1394 check_host_cflags(){
1395     log check_host_cflags "$@"
1396     set -- $($host_cflags_filter "$@")
1397     check_host_cc "$@" <<EOF && append host_cflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cpp_condition(){
1403     log check_host_cpp_condition "$@"
1404     header=$1
1405     condition=$2
1406     shift 2
1407     check_host_cpp "$@" <<EOF
1408 #include <$header>
1409 #if !($condition)
1410 #error "unsatisfied condition: $condition"
1411 #endif
1412 EOF
1413 }
1414
1415 cp_if_changed(){
1416     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1417     mkdir -p "$(dirname $2)"
1418     cp -f "$1" "$2"
1419 }
1420
1421 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1422 # system-dependent things.
1423
1424 AVCODEC_COMPONENTS="
1425     bsfs
1426     decoders
1427     encoders
1428     hwaccels
1429     parsers
1430 "
1431
1432 AVDEVICE_COMPONENTS="
1433     indevs
1434     outdevs
1435 "
1436 AVFILTER_COMPONENTS="
1437     filters
1438 "
1439 AVFORMAT_COMPONENTS="
1440     demuxers
1441     muxers
1442     protocols
1443 "
1444
1445 AVRESAMPLE_COMPONENTS=""
1446 AVUTIL_COMPONENTS=""
1447
1448 COMPONENT_LIST="
1449     $AVCODEC_COMPONENTS
1450     $AVDEVICE_COMPONENTS
1451     $AVFILTER_COMPONENTS
1452     $AVFORMAT_COMPONENTS
1453     $AVRESAMPLE_COMPONENTS
1454     $AVUTIL_COMPONENTS
1455 "
1456
1457 EXAMPLE_LIST="
1458     avio_dir_cmd_example
1459     avio_reading_example
1460     decode_audio_example
1461     decode_video_example
1462     demuxing_decoding_example
1463     encode_audio_example
1464     encode_video_example
1465     extract_mvs_example
1466     filter_audio_example
1467     filtering_audio_example
1468     filtering_video_example
1469     http_multiclient_example
1470     metadata_example
1471     muxing_example
1472     qsvdec_example
1473     remuxing_example
1474     resampling_audio_example
1475     scaling_video_example
1476     transcode_aac_example
1477     transcoding_example
1478 "
1479 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1480     bzlib
1481     iconv
1482     libxcb
1483     libxcb_shm
1484     libxcb_shape
1485     libxcb_xfixes
1486     lzma
1487     schannel
1488     sdl
1489     sdl2
1490     securetransport
1491     xlib
1492     zlib
1493 "
1494
1495 EXTERNAL_LIBRARY_GPL_LIST="
1496     avisynth
1497     frei0r
1498     libcdio
1499     librubberband
1500     libvidstab
1501     libx264
1502     libx265
1503     libxavs
1504     libxvid
1505 "
1506
1507 EXTERNAL_LIBRARY_NONFREE_LIST="
1508     decklink
1509     libfdk_aac
1510     openssl
1511 "
1512
1513 EXTERNAL_LIBRARY_VERSION3_LIST="
1514     gmp
1515     libopencore_amrnb
1516     libopencore_amrwb
1517     libvo_amrwbenc
1518 "
1519
1520 EXTERNAL_LIBRARY_GPLV3_LIST="
1521     libsmbclient
1522 "
1523
1524 EXTERNAL_LIBRARY_LIST="
1525     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1526     $EXTERNAL_LIBRARY_GPL_LIST
1527     $EXTERNAL_LIBRARY_NONFREE_LIST
1528     $EXTERNAL_LIBRARY_VERSION3_LIST
1529     $EXTERNAL_LIBRARY_GPLV3_LIST
1530     chromaprint
1531     crystalhd
1532     gcrypt
1533     gnutls
1534     jni
1535     ladspa
1536     libass
1537     libbluray
1538     libbs2b
1539     libcaca
1540     libcelt
1541     libdc1394
1542     libflite
1543     libfontconfig
1544     libfreetype
1545     libfribidi
1546     libgme
1547     libgsm
1548     libiec61883
1549     libilbc
1550     libkvazaar
1551     libmodplug
1552     libmp3lame
1553     libmysofa
1554     libopencv
1555     libopenh264
1556     libopenjpeg
1557     libopenmpt
1558     libopus
1559     libpulse
1560     librsvg
1561     librtmp
1562     libshine
1563     libsmbclient
1564     libsnappy
1565     libsoxr
1566     libspeex
1567     libssh
1568     libtesseract
1569     libtheora
1570     libtwolame
1571     libv4l2
1572     libvorbis
1573     libvpx
1574     libwavpack
1575     libwebp
1576     libzimg
1577     libzmq
1578     libzvbi
1579     mediacodec
1580     openal
1581     opencl
1582     opengl
1583     videotoolbox
1584 "
1585 HWACCEL_AUTODETECT_LIBRARY_LIST="
1586     audiotoolbox
1587     cuda
1588     cuvid
1589     d3d11va
1590     dxva2
1591     nvenc
1592     vaapi
1593     vda
1594     vdpau
1595     videotoolbox_hwaccel
1596     xvmc
1597 "
1598
1599 HWACCEL_LIBRARY_NONFREE_LIST="
1600     cuda_sdk
1601     libnpp
1602 "
1603
1604 HWACCEL_LIBRARY_LIST="
1605     $HWACCEL_AUTODETECT_LIBRARY_LIST
1606     $HWACCEL_LIBRARY_NONFREE_LIST
1607     libmfx
1608     mmal
1609     omx
1610 "
1611
1612 DOCUMENT_LIST="
1613     doc
1614     htmlpages
1615     manpages
1616     podpages
1617     txtpages
1618 "
1619
1620 FEATURE_LIST="
1621     ftrapv
1622     gray
1623     hardcoded_tables
1624     omx_rpi
1625     runtime_cpudetect
1626     safe_bitstream_reader
1627     shared
1628     small
1629     static
1630     swscale_alpha
1631 "
1632
1633 LIBRARY_LIST="
1634     avcodec
1635     avdevice
1636     avfilter
1637     avformat
1638     avresample
1639     avutil
1640     postproc
1641     swresample
1642     swscale
1643 "
1644
1645 LICENSE_LIST="
1646     gpl
1647     nonfree
1648     version3
1649 "
1650
1651 PROGRAM_LIST="
1652     ffplay
1653     ffprobe
1654     ffserver
1655     ffmpeg
1656 "
1657
1658 SUBSYSTEM_LIST="
1659     dct
1660     dwt
1661     error_resilience
1662     faan
1663     fast_unaligned
1664     fft
1665     lsp
1666     lzo
1667     mdct
1668     pixelutils
1669     network
1670     rdft
1671 "
1672
1673 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1674 CONFIG_LIST="
1675     $DOCUMENT_LIST
1676     $EXAMPLE_LIST
1677     $EXTERNAL_LIBRARY_LIST
1678     $HWACCEL_LIBRARY_LIST
1679     $FEATURE_LIST
1680     $LICENSE_LIST
1681     $LIBRARY_LIST
1682     $PROGRAM_LIST
1683     $SUBSYSTEM_LIST
1684     fontconfig
1685     memory_poisoning
1686     neon_clobber_test
1687     ossfuzz
1688     pic
1689     thumb
1690     valgrind_backtrace
1691     xmm_clobber_test
1692     $COMPONENT_LIST
1693 "
1694
1695 THREADS_LIST="
1696     pthreads
1697     os2threads
1698     w32threads
1699 "
1700
1701 ATOMICS_LIST="
1702     atomics_gcc
1703     atomics_suncc
1704     atomics_win32
1705 "
1706
1707 AUTODETECT_LIBS="
1708     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1709     $HWACCEL_AUTODETECT_LIBRARY_LIST
1710     $THREADS_LIST
1711 "
1712
1713 ARCH_LIST="
1714     aarch64
1715     alpha
1716     arm
1717     avr32
1718     avr32_ap
1719     avr32_uc
1720     bfin
1721     ia64
1722     m68k
1723     mips
1724     mips64
1725     parisc
1726     ppc
1727     ppc64
1728     s390
1729     sh4
1730     sparc
1731     sparc64
1732     tilegx
1733     tilepro
1734     tomi
1735     x86
1736     x86_32
1737     x86_64
1738 "
1739
1740 ARCH_EXT_LIST_ARM="
1741     armv5te
1742     armv6
1743     armv6t2
1744     armv8
1745     neon
1746     vfp
1747     vfpv3
1748     setend
1749 "
1750
1751 ARCH_EXT_LIST_MIPS="
1752     mipsfpu
1753     mips32r2
1754     mips32r5
1755     mips64r2
1756     mips32r6
1757     mips64r6
1758     mipsdsp
1759     mipsdspr2
1760     msa
1761 "
1762
1763 ARCH_EXT_LIST_LOONGSON="
1764     loongson2
1765     loongson3
1766     mmi
1767 "
1768
1769 ARCH_EXT_LIST_X86_SIMD="
1770     aesni
1771     amd3dnow
1772     amd3dnowext
1773     avx
1774     avx2
1775     fma3
1776     fma4
1777     mmx
1778     mmxext
1779     sse
1780     sse2
1781     sse3
1782     sse4
1783     sse42
1784     ssse3
1785     xop
1786 "
1787
1788 ARCH_EXT_LIST_PPC="
1789     altivec
1790     dcbzl
1791     ldbrx
1792     power8
1793     ppc4xx
1794     vsx
1795 "
1796
1797 ARCH_EXT_LIST_X86="
1798     $ARCH_EXT_LIST_X86_SIMD
1799     cpunop
1800     i686
1801 "
1802
1803 ARCH_EXT_LIST="
1804     $ARCH_EXT_LIST_ARM
1805     $ARCH_EXT_LIST_PPC
1806     $ARCH_EXT_LIST_X86
1807     $ARCH_EXT_LIST_MIPS
1808     $ARCH_EXT_LIST_LOONGSON
1809 "
1810
1811 ARCH_FEATURES="
1812     aligned_stack
1813     fast_64bit
1814     fast_clz
1815     fast_cmov
1816     local_aligned_8
1817     local_aligned_16
1818     local_aligned_32
1819     simd_align_16
1820     simd_align_32
1821 "
1822
1823 BUILTIN_LIST="
1824     atomic_cas_ptr
1825     machine_rw_barrier
1826     MemoryBarrier
1827     mm_empty
1828     rdtsc
1829     sarestart
1830     sem_timedwait
1831     sync_val_compare_and_swap
1832 "
1833 HAVE_LIST_CMDLINE="
1834     inline_asm
1835     symver
1836     yasm
1837 "
1838
1839 HAVE_LIST_PUB="
1840     bigendian
1841     fast_unaligned
1842 "
1843
1844 HEADERS_LIST="
1845     alsa_asoundlib_h
1846     altivec_h
1847     arpa_inet_h
1848     asm_types_h
1849     cdio_paranoia_h
1850     cdio_paranoia_paranoia_h
1851     cuda_h
1852     d3d11_h
1853     dispatch_dispatch_h
1854     dev_bktr_ioctl_bt848_h
1855     dev_bktr_ioctl_meteor_h
1856     dev_ic_bt8xx_h
1857     dev_video_bktr_ioctl_bt848_h
1858     dev_video_meteor_ioctl_meteor_h
1859     direct_h
1860     dirent_h
1861     dlfcn_h
1862     dxva_h
1863     ES2_gl_h
1864     gsm_h
1865     io_h
1866     mach_mach_time_h
1867     machine_ioctl_bt848_h
1868     machine_ioctl_meteor_h
1869     malloc_h
1870     opencv2_core_core_c_h
1871     openjpeg_2_1_openjpeg_h
1872     openjpeg_2_0_openjpeg_h
1873     openjpeg_1_5_openjpeg_h
1874     OpenGL_gl3_h
1875     poll_h
1876     sndio_h
1877     soundcard_h
1878     stdatomic_h
1879     sys_mman_h
1880     sys_param_h
1881     sys_resource_h
1882     sys_select_h
1883     sys_soundcard_h
1884     sys_time_h
1885     sys_un_h
1886     sys_videoio_h
1887     termios_h
1888     udplite_h
1889     unistd_h
1890     valgrind_valgrind_h
1891     windows_h
1892     winsock2_h
1893 "
1894
1895 INTRINSICS_LIST="
1896     intrinsics_neon
1897 "
1898
1899 COMPLEX_FUNCS="
1900     cabs
1901     cexp
1902 "
1903
1904 MATH_FUNCS="
1905     atanf
1906     atan2f
1907     cbrt
1908     cbrtf
1909     copysign
1910     cosf
1911     erf
1912     exp2
1913     exp2f
1914     expf
1915     hypot
1916     isfinite
1917     isinf
1918     isnan
1919     ldexpf
1920     llrint
1921     llrintf
1922     log2
1923     log2f
1924     log10f
1925     lrint
1926     lrintf
1927     powf
1928     rint
1929     round
1930     roundf
1931     sinf
1932     trunc
1933     truncf
1934 "
1935
1936 SYSTEM_FUNCS="
1937     access
1938     aligned_malloc
1939     arc4random
1940     clock_gettime
1941     closesocket
1942     CommandLineToArgvW
1943     CoTaskMemFree
1944     CryptGenRandom
1945     dlopen
1946     fcntl
1947     flt_lim
1948     fork
1949     getaddrinfo
1950     gethrtime
1951     getopt
1952     GetProcessAffinityMask
1953     GetProcessMemoryInfo
1954     GetProcessTimes
1955     getrusage
1956     GetSystemTimeAsFileTime
1957     gettimeofday
1958     glob
1959     glXGetProcAddress
1960     gmtime_r
1961     inet_aton
1962     isatty
1963     jack_port_get_latency_range
1964     kbhit
1965     LoadLibrary
1966     localtime_r
1967     lstat
1968     lzo1x_999_compress
1969     mach_absolute_time
1970     MapViewOfFile
1971     memalign
1972     mkstemp
1973     mmap
1974     mprotect
1975     nanosleep
1976     PeekNamedPipe
1977     posix_memalign
1978     pthread_cancel
1979     sched_getaffinity
1980     SetConsoleTextAttribute
1981     SetConsoleCtrlHandler
1982     setmode
1983     setrlimit
1984     Sleep
1985     strerror_r
1986     sysconf
1987     sysctl
1988     usleep
1989     UTGetOSTypeFromString
1990     VirtualAlloc
1991     wglGetProcAddress
1992 "
1993
1994 TOOLCHAIN_FEATURES="
1995     as_dn_directive
1996     as_fpu_directive
1997     as_func
1998     as_object_arch
1999     asm_mod_q
2000     attribute_may_alias
2001     attribute_packed
2002     blocks_extension
2003     ebp_available
2004     ebx_available
2005     gnu_as
2006     gnu_windres
2007     ibm_asm
2008     inline_asm_direct_symbol_refs
2009     inline_asm_labels
2010     inline_asm_nonlocal_labels
2011     pragma_deprecated
2012     rsync_contimeout
2013     symver_asm_label
2014     symver_gnu_asm
2015     vfp_args
2016     xform_asm
2017     xmm_clobbers
2018 "
2019
2020 TYPES_LIST="
2021     CONDITION_VARIABLE_Ptr
2022     socklen_t
2023     struct_addrinfo
2024     struct_group_source_req
2025     struct_ip_mreq_source
2026     struct_ipv6_mreq
2027     struct_msghdr_msg_flags
2028     struct_pollfd
2029     struct_rusage_ru_maxrss
2030     struct_sctp_event_subscribe
2031     struct_sockaddr_in6
2032     struct_sockaddr_sa_len
2033     struct_sockaddr_storage
2034     struct_stat_st_mtim_tv_nsec
2035     struct_v4l2_frmivalenum_discrete
2036 "
2037
2038 HAVE_LIST="
2039     $ARCH_EXT_LIST
2040     $(add_suffix _external $ARCH_EXT_LIST)
2041     $(add_suffix _inline   $ARCH_EXT_LIST)
2042     $ARCH_FEATURES
2043     $ATOMICS_LIST
2044     $BUILTIN_LIST
2045     $COMPLEX_FUNCS
2046     $HAVE_LIST_CMDLINE
2047     $HAVE_LIST_PUB
2048     $HEADERS_LIST
2049     $INTRINSICS_LIST
2050     $MATH_FUNCS
2051     $SYSTEM_FUNCS
2052     $THREADS_LIST
2053     $TOOLCHAIN_FEATURES
2054     $TYPES_LIST
2055     alsa
2056     atomics_native
2057     dos_paths
2058     dxva2_lib
2059     dxva2api_cobj
2060     jack
2061     libc_msvcrt
2062     makeinfo
2063     makeinfo_html
2064     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2065     perl
2066     pod2man
2067     sdl2
2068     section_data_rel_ro
2069     sndio
2070     texi2html
2071     threads
2072     vaapi_drm
2073     vaapi_x11
2074     vdpau_x11
2075     winrt
2076 "
2077
2078 # options emitted with CONFIG_ prefix but not available on the command line
2079 CONFIG_EXTRA="
2080     aandcttables
2081     ac3dsp
2082     audio_frame_queue
2083     audiodsp
2084     blockdsp
2085     bswapdsp
2086     cabac
2087     dirac_parse
2088     dvprofile
2089     exif
2090     faandct
2091     faanidct
2092     fdctdsp
2093     flacdsp
2094     fmtconvert
2095     frame_thread_encoder
2096     g722dsp
2097     golomb
2098     gplv3
2099     h263dsp
2100     h264chroma
2101     h264dsp
2102     h264parse
2103     h264pred
2104     h264qpel
2105     hevcparse
2106     hpeldsp
2107     huffman
2108     huffyuvdsp
2109     huffyuvencdsp
2110     idctdsp
2111     iirfilter
2112     mdct15
2113     intrax8
2114     iso_media
2115     ividsp
2116     jpegtables
2117     lgplv3
2118     libx262
2119     llauddsp
2120     llviddsp
2121     llvidencdsp
2122     lpc
2123     lzf
2124     me_cmp
2125     mpeg_er
2126     mpegaudio
2127     mpegaudiodsp
2128     mpegaudioheader
2129     mpegvideo
2130     mpegvideoenc
2131     mss34dsp
2132     pixblockdsp
2133     qpeldsp
2134     qsv
2135     qsvdec
2136     qsvenc
2137     rangecoder
2138     riffdec
2139     riffenc
2140     rtpdec
2141     rtpenc_chain
2142     rv34dsp
2143     sinewin
2144     snappy
2145     srtp
2146     startcode
2147     texturedsp
2148     texturedspenc
2149     tpeldsp
2150     vaapi_encode
2151     vc1dsp
2152     videodsp
2153     vp3dsp
2154     vp56dsp
2155     vp8dsp
2156     vt_bt2020
2157     wma_freqs
2158     wmv2dsp
2159 "
2160
2161 CMDLINE_SELECT="
2162     $ARCH_EXT_LIST
2163     $CONFIG_LIST
2164     $HAVE_LIST_CMDLINE
2165     $THREADS_LIST
2166     asm
2167     cross_compile
2168     debug
2169     extra_warnings
2170     logging
2171     lto
2172     optimizations
2173     rpath
2174     stripping
2175 "
2176
2177 PATHS_LIST="
2178     bindir
2179     datadir
2180     docdir
2181     incdir
2182     libdir
2183     mandir
2184     pkgconfigdir
2185     prefix
2186     shlibdir
2187     install_name_dir
2188 "
2189
2190 CMDLINE_SET="
2191     $PATHS_LIST
2192     ar
2193     arch
2194     as
2195     assert_level
2196     build_suffix
2197     cc
2198     objcc
2199     cpu
2200     cross_prefix
2201     custom_allocator
2202     cxx
2203     dep_cc
2204     doxygen
2205     env
2206     extra_version
2207     gas
2208     host_cc
2209     host_cflags
2210     host_extralibs
2211     host_ld
2212     host_ldflags
2213     host_os
2214     ignore_tests
2215     install
2216     ld
2217     ln_s
2218     logfile
2219     malloc_prefix
2220     nm
2221     optflags
2222     nvccflags
2223     pkg_config
2224     pkg_config_flags
2225     progs_suffix
2226     random_seed
2227     ranlib
2228     samples
2229     strip
2230     sws_max_filter_size
2231     sysinclude
2232     sysroot
2233     target_exec
2234     target_os
2235     target_path
2236     target_samples
2237     tempprefix
2238     toolchain
2239     valgrind
2240     yasmexe
2241 "
2242
2243 CMDLINE_APPEND="
2244     extra_cflags
2245     extra_cxxflags
2246     extra_objcflags
2247     host_cppflags
2248 "
2249
2250 # code dependency declarations
2251
2252 # architecture extensions
2253
2254 armv5te_deps="arm"
2255 armv6_deps="arm"
2256 armv6t2_deps="arm"
2257 armv8_deps="aarch64"
2258 neon_deps_any="aarch64 arm"
2259 intrinsics_neon_deps="neon"
2260 vfp_deps_any="aarch64 arm"
2261 vfpv3_deps="vfp"
2262 setend_deps="arm"
2263
2264 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2265
2266 loongson2_deps="mips"
2267 loongson3_deps="mips"
2268 mipsfpu_deps="mips"
2269 mipsdsp_deps="mips"
2270 mipsdspr2_deps="mips"
2271 mips32r2_deps="mips"
2272 mips32r5_deps="mips"
2273 mips32r6_deps="mips"
2274 mips64r2_deps="mips"
2275 mips64r6_deps="mips"
2276 msa_deps="mipsfpu"
2277 mmi_deps="mips"
2278
2279 altivec_deps="ppc"
2280 dcbzl_deps="ppc"
2281 ldbrx_deps="ppc"
2282 ppc4xx_deps="ppc"
2283 vsx_deps="altivec"
2284 power8_deps="vsx"
2285
2286 cpunop_deps="i686"
2287 x86_64_select="i686"
2288 x86_64_suggest="fast_cmov"
2289
2290 amd3dnow_deps="mmx"
2291 amd3dnowext_deps="amd3dnow"
2292 i686_deps="x86"
2293 mmx_deps="x86"
2294 mmxext_deps="mmx"
2295 sse_deps="mmxext"
2296 sse2_deps="sse"
2297 sse3_deps="sse2"
2298 ssse3_deps="sse3"
2299 sse4_deps="ssse3"
2300 sse42_deps="sse4"
2301 aesni_deps="sse42"
2302 avx_deps="sse42"
2303 xop_deps="avx"
2304 fma3_deps="avx"
2305 fma4_deps="avx"
2306 avx2_deps="avx"
2307
2308 mmx_external_deps="yasm"
2309 mmx_inline_deps="inline_asm"
2310 mmx_suggest="mmx_external mmx_inline"
2311
2312 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2313     eval dep=\$${ext}_deps
2314     eval ${ext}_external_deps='"${dep}_external"'
2315     eval ${ext}_inline_deps='"${dep}_inline"'
2316     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2317 done
2318
2319 aligned_stack_if_any="aarch64 ppc x86"
2320 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2321 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2322 fast_unaligned_if_any="aarch64 ppc x86"
2323 simd_align_16_if_any="altivec neon sse"
2324 simd_align_32_if_any="avx"
2325
2326 # system capabilities
2327 symver_if_any="symver_asm_label symver_gnu_asm"
2328 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2329
2330 # threading support
2331 atomics_gcc_if="sync_val_compare_and_swap"
2332 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2333 atomics_win32_if="MemoryBarrier"
2334 atomics_native_if_any="$ATOMICS_LIST"
2335 w32threads_deps="atomics_native"
2336 threads_if_any="$THREADS_LIST"
2337
2338 # subsystems
2339 dct_select="rdft"
2340 dirac_parse_select="golomb"
2341 error_resilience_select="me_cmp"
2342 faandct_deps="faan fdctdsp"
2343 faanidct_deps="faan idctdsp"
2344 h264dsp_select="startcode"
2345 hevcparse_select="golomb"
2346 frame_thread_encoder_deps="encoders threads"
2347 intrax8_select="blockdsp idctdsp"
2348 mdct_select="fft"
2349 mdct15_select="fft"
2350 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2351 mpeg_er_select="error_resilience"
2352 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2353 mpegaudiodsp_select="dct"
2354 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2355 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2356 vc1dsp_select="h264chroma qpeldsp startcode"
2357 rdft_select="fft"
2358
2359 # decoders / encoders
2360 aac_decoder_select="mdct15 mdct sinewin"
2361 aac_fixed_decoder_select="mdct sinewin"
2362 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2363 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2364 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2365 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2366 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2367 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 adpcm_g722_decoder_select="g722dsp"
2369 adpcm_g722_encoder_select="g722dsp"
2370 aic_decoder_select="golomb idctdsp"
2371 alac_encoder_select="lpc"
2372 als_decoder_select="bswapdsp"
2373 amrnb_decoder_select="lsp"
2374 amrwb_decoder_select="lsp"
2375 amv_decoder_select="sp5x_decoder exif"
2376 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2377 ape_decoder_select="bswapdsp llauddsp"
2378 apng_decoder_select="zlib"
2379 apng_encoder_select="llvidencdsp zlib"
2380 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2381 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2382 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2383 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2384 atrac1_decoder_select="mdct sinewin"
2385 atrac3_decoder_select="mdct"
2386 atrac3p_decoder_select="mdct sinewin"
2387 avrn_decoder_select="exif jpegtables"
2388 bink_decoder_select="blockdsp hpeldsp"
2389 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2390 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2391 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2392 clearvideo_decoder_select="idctdsp"
2393 cllc_decoder_select="bswapdsp"
2394 comfortnoise_encoder_select="lpc"
2395 cook_decoder_select="audiodsp mdct sinewin"
2396 cscd_decoder_select="lzo"
2397 cscd_decoder_suggest="zlib"
2398 dca_decoder_select="mdct"
2399 dds_decoder_select="texturedsp"
2400 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2401 dnxhd_decoder_select="blockdsp idctdsp"
2402 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2403 dvvideo_decoder_select="dvprofile idctdsp"
2404 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2405 dxa_decoder_select="zlib"
2406 dxv_decoder_select="lzf texturedsp"
2407 eac3_decoder_select="ac3_decoder"
2408 eac3_encoder_select="ac3_encoder"
2409 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2410 eatgq_decoder_select="aandcttables"
2411 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2412 exr_decoder_select="zlib"
2413 ffv1_decoder_select="rangecoder"
2414 ffv1_encoder_select="rangecoder"
2415 ffvhuff_decoder_select="huffyuv_decoder"
2416 ffvhuff_encoder_select="huffyuv_encoder"
2417 fic_decoder_select="golomb"
2418 flac_decoder_select="flacdsp"
2419 flac_encoder_select="bswapdsp flacdsp lpc"
2420 flashsv2_decoder_select="zlib"
2421 flashsv2_encoder_select="zlib"
2422 flashsv_decoder_select="zlib"
2423 flashsv_encoder_select="zlib"
2424 flv_decoder_select="h263_decoder"
2425 flv_encoder_select="h263_encoder"
2426 fourxm_decoder_select="blockdsp bswapdsp"
2427 fraps_decoder_select="bswapdsp huffman"
2428 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2429 g729_decoder_select="audiodsp"
2430 h261_decoder_select="mpegvideo"
2431 h261_encoder_select="aandcttables mpegvideoenc"
2432 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2433 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2434 h263i_decoder_select="h263_decoder"
2435 h263p_decoder_select="h263_decoder"
2436 h263p_encoder_select="h263_encoder"
2437 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2438 h264_decoder_suggest="error_resilience"
2439 hap_decoder_select="snappy texturedsp"
2440 hap_encoder_deps="libsnappy"
2441 hap_encoder_select="texturedspenc"
2442 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2443 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2444 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2445 iac_decoder_select="imc_decoder"
2446 imc_decoder_select="bswapdsp fft mdct sinewin"
2447 indeo3_decoder_select="hpeldsp"
2448 indeo4_decoder_select="ividsp"
2449 indeo5_decoder_select="ividsp"
2450 interplay_video_decoder_select="hpeldsp"
2451 jpegls_decoder_select="mjpeg_decoder"
2452 jv_decoder_select="blockdsp"
2453 lagarith_decoder_select="llviddsp"
2454 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2455 magicyuv_decoder_select="llviddsp"
2456 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2457 metasound_decoder_select="lsp mdct sinewin"
2458 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2459 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2460 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2461 mjpegb_decoder_select="mjpeg_decoder"
2462 mlp_decoder_select="mlp_parser"
2463 mlp_encoder_select="lpc"
2464 motionpixels_decoder_select="bswapdsp"
2465 mp1_decoder_select="mpegaudio"
2466 mp1float_decoder_select="mpegaudio"
2467 mp2_decoder_select="mpegaudio"
2468 mp2float_decoder_select="mpegaudio"
2469 mp3_decoder_select="mpegaudio"
2470 mp3adu_decoder_select="mpegaudio"
2471 mp3adufloat_decoder_select="mpegaudio"
2472 mp3float_decoder_select="mpegaudio"
2473 mp3on4_decoder_select="mpegaudio"
2474 mp3on4float_decoder_select="mpegaudio"
2475 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2476 mpc8_decoder_select="mpegaudiodsp"
2477 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2478 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2479 mpegvideo_decoder_select="mpegvideo"
2480 mpeg1video_decoder_select="mpegvideo"
2481 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2482 mpeg2video_decoder_select="mpegvideo"
2483 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2484 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2485 mpeg4_encoder_select="h263_encoder"
2486 msa1_decoder_select="mss34dsp"
2487 mscc_decoder_select="zlib"
2488 msmpeg4v1_decoder_select="h263_decoder"
2489 msmpeg4v2_decoder_select="h263_decoder"
2490 msmpeg4v2_encoder_select="h263_encoder"
2491 msmpeg4v3_decoder_select="h263_decoder"
2492 msmpeg4v3_encoder_select="h263_encoder"
2493 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2494 mts2_decoder_select="mss34dsp"
2495 mxpeg_decoder_select="mjpeg_decoder"
2496 nellymoser_decoder_select="mdct sinewin"
2497 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2498 nuv_decoder_select="idctdsp lzo"
2499 on2avc_decoder_select="mdct"
2500 opus_decoder_deps="swresample"
2501 opus_decoder_select="mdct15"
2502 opus_encoder_select="audio_frame_queue mdct15"
2503 png_decoder_select="zlib"
2504 png_encoder_select="llvidencdsp zlib"
2505 prores_decoder_select="blockdsp idctdsp"
2506 prores_encoder_select="fdctdsp"
2507 qcelp_decoder_select="lsp"
2508 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2509 ra_144_decoder_select="audiodsp"
2510 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2511 ralf_decoder_select="golomb"
2512 rawvideo_decoder_select="bswapdsp"
2513 rscc_decoder_select="zlib"
2514 rtjpeg_decoder_select="me_cmp"
2515 rv10_decoder_select="h263_decoder"
2516 rv10_encoder_select="h263_encoder"
2517 rv20_decoder_select="h263_decoder"
2518 rv20_encoder_select="h263_encoder"
2519 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2520 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 screenpresso_decoder_select="zlib"
2522 shorten_decoder_select="bswapdsp"
2523 sipr_decoder_select="lsp"
2524 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2525 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2526 sonic_decoder_select="golomb rangecoder"
2527 sonic_encoder_select="golomb rangecoder"
2528 sonic_ls_encoder_select="golomb rangecoder"
2529 sp5x_decoder_select="mjpeg_decoder"
2530 srgc_decoder_select="zlib"
2531 svq1_decoder_select="hpeldsp"
2532 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2533 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2534 svq3_decoder_suggest="zlib"
2535 tak_decoder_select="audiodsp"
2536 tdsc_decoder_select="zlib mjpeg_decoder"
2537 theora_decoder_select="vp3_decoder"
2538 thp_decoder_select="mjpeg_decoder"
2539 tiff_decoder_suggest="zlib lzma"
2540 tiff_encoder_suggest="zlib"
2541 truehd_decoder_select="mlp_parser"
2542 truehd_encoder_select="lpc"
2543 truemotion2_decoder_select="bswapdsp"
2544 truespeech_decoder_select="bswapdsp"
2545 tscc_decoder_select="zlib"
2546 twinvq_decoder_select="mdct lsp sinewin"
2547 txd_decoder_select="texturedsp"
2548 utvideo_decoder_select="bswapdsp llviddsp"
2549 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2550 vble_decoder_select="llviddsp"
2551 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2552 vc1_qsv_decoder_deps="libmfx"
2553 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2554 vc1image_decoder_select="vc1_decoder"
2555 vorbis_decoder_select="mdct"
2556 vorbis_encoder_select="mdct"
2557 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2558 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2559 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2560 vp6a_decoder_select="vp6_decoder"
2561 vp6f_decoder_select="vp6_decoder"
2562 vp7_decoder_select="h264pred videodsp vp8dsp"
2563 vp8_decoder_select="h264pred videodsp vp8dsp"
2564 vp9_decoder_select="videodsp vp9_parser"
2565 webp_decoder_select="vp8_decoder exif"
2566 wmalossless_decoder_select="llauddsp"
2567 wmapro_decoder_select="mdct sinewin wma_freqs"
2568 wmav1_decoder_select="mdct sinewin wma_freqs"
2569 wmav1_encoder_select="mdct sinewin wma_freqs"
2570 wmav2_decoder_select="mdct sinewin wma_freqs"
2571 wmav2_encoder_select="mdct sinewin wma_freqs"
2572 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2573 wmv1_decoder_select="h263_decoder"
2574 wmv1_encoder_select="h263_encoder"
2575 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2576 wmv2_encoder_select="h263_encoder wmv2dsp"
2577 wmv3_decoder_select="vc1_decoder"
2578 wmv3image_decoder_select="wmv3_decoder"
2579 xma1_decoder_select="wmapro_decoder"
2580 xma2_decoder_select="wmapro_decoder"
2581 zerocodec_decoder_select="zlib"
2582 zlib_decoder_select="zlib"
2583 zlib_encoder_select="zlib"
2584 zmbv_decoder_select="zlib"
2585 zmbv_encoder_select="zlib"
2586
2587 # platform codecs
2588 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2589 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2590
2591 # hardware accelerators
2592 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2593 cuda_deps_any="dlopen LoadLibrary"
2594 cuvid_deps="cuda"
2595 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2596 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2597 dxva2_extralibs="-luser32"
2598 dxva2_lib_deps="dxva2"
2599 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2600 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2601 vda_deps="vda_framework pthreads"
2602 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2603 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2604 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2605 xvmc_deps="X11_extensions_XvMClib_h"
2606
2607 h263_vaapi_hwaccel_deps="vaapi"
2608 h263_vaapi_hwaccel_select="h263_decoder"
2609 h263_videotoolbox_hwaccel_deps="videotoolbox"
2610 h263_videotoolbox_hwaccel_select="h263_decoder"
2611 h264_cuvid_hwaccel_deps="cuda cuvid"
2612 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2613 h264_d3d11va_hwaccel_deps="d3d11va"
2614 h264_d3d11va_hwaccel_select="h264_decoder"
2615 h264_dxva2_hwaccel_deps="dxva2"
2616 h264_dxva2_hwaccel_select="h264_decoder"
2617 h264_mediacodec_hwaccel_deps="mediacodec"
2618 h264_mmal_hwaccel_deps="mmal"
2619 h264_qsv_hwaccel_deps="libmfx"
2620 h264_vaapi_hwaccel_deps="vaapi"
2621 h264_vaapi_hwaccel_select="h264_decoder"
2622 h264_vda_hwaccel_deps="vda"
2623 h264_vda_hwaccel_select="h264_decoder"
2624 h264_vda_old_hwaccel_deps="vda"
2625 h264_vda_old_hwaccel_select="h264_decoder"
2626 h264_vdpau_hwaccel_deps="vdpau"
2627 h264_vdpau_hwaccel_select="h264_decoder"
2628 h264_videotoolbox_hwaccel_deps="videotoolbox"
2629 h264_videotoolbox_hwaccel_select="h264_decoder"
2630 hevc_cuvid_hwaccel_deps="cuda cuvid"
2631 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2632 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2633 hevc_d3d11va_hwaccel_select="hevc_decoder"
2634 hevc_mediacodec_hwaccel_deps="mediacodec"
2635 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2636 hevc_dxva2_hwaccel_select="hevc_decoder"
2637 hevc_qsv_hwaccel_deps="libmfx"
2638 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2639 hevc_vaapi_hwaccel_select="hevc_decoder"
2640 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2641 hevc_vdpau_hwaccel_select="hevc_decoder"
2642 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2643 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2644 mpeg_xvmc_hwaccel_deps="xvmc"
2645 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2646 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2647 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2648 mpeg1_vdpau_hwaccel_deps="vdpau"
2649 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2650 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2651 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2652 mpeg1_xvmc_hwaccel_deps="xvmc"
2653 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2654 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2655 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2656 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2657 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2658 mpeg2_dxva2_hwaccel_deps="dxva2"
2659 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2660 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2661 mpeg2_mmal_hwaccel_deps="mmal"
2662 mpeg2_qsv_hwaccel_deps="libmfx"
2663 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2664 mpeg2_vaapi_hwaccel_deps="vaapi"
2665 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2666 mpeg2_vdpau_hwaccel_deps="vdpau"
2667 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2669 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_xvmc_hwaccel_deps="xvmc"
2671 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2672 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2673 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2674 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2675 mpeg4_mmal_hwaccel_deps="mmal"
2676 mpeg4_vaapi_hwaccel_deps="vaapi"
2677 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2678 mpeg4_vdpau_hwaccel_deps="vdpau"
2679 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2680 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2681 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2682 vc1_cuvid_hwaccel_deps="cuda cuvid"
2683 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2684 vc1_d3d11va_hwaccel_deps="d3d11va"
2685 vc1_d3d11va_hwaccel_select="vc1_decoder"
2686 vc1_dxva2_hwaccel_deps="dxva2"
2687 vc1_dxva2_hwaccel_select="vc1_decoder"
2688 vc1_mmal_hwaccel_deps="mmal"
2689 vc1_qsv_hwaccel_deps="libmfx"
2690 vc1_qsv_hwaccel_select="qsvdec_vc1"
2691 vc1_vaapi_hwaccel_deps="vaapi"
2692 vc1_vaapi_hwaccel_select="vc1_decoder"
2693 vc1_vdpau_hwaccel_deps="vdpau"
2694 vc1_vdpau_hwaccel_select="vc1_decoder"
2695 vp8_cuvid_hwaccel_deps="cuda cuvid"
2696 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2697 vp9_cuvid_hwaccel_deps="cuda cuvid"
2698 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2699 vp8_mediacodec_hwaccel_deps="mediacodec"
2700 vp8_qsv_hwaccel_deps="libmfx"
2701 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2702 vp9_d3d11va_hwaccel_select="vp9_decoder"
2703 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2704 vp9_dxva2_hwaccel_select="vp9_decoder"
2705 vp9_mediacodec_hwaccel_deps="mediacodec"
2706 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2707 vp9_vaapi_hwaccel_select="vp9_decoder"
2708 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2709 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2710 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2711 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2712
2713 # hardware-accelerated codecs
2714 omx_deps="dlopen pthreads"
2715 omx_extralibs='$ldl'
2716 omx_rpi_select="omx"
2717 qsvdec_select="qsv"
2718 qsvenc_select="qsv"
2719 vaapi_encode_deps="vaapi"
2720
2721 hwupload_cuda_filter_deps="cuda"
2722 scale_npp_filter_deps="cuda libnpp"
2723 scale_cuda_filter_deps="cuda_sdk"
2724
2725 nvenc_deps="cuda"
2726 nvenc_deps_any="dlopen LoadLibrary"
2727 nvenc_encoder_deps="nvenc"
2728
2729 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2730 h264_cuvid_decoder_deps="cuda cuvid"
2731 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2732 h264_mediacodec_decoder_deps="mediacodec"
2733 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2734 h264_mmal_decoder_deps="mmal"
2735 h264_nvenc_encoder_deps="nvenc"
2736 h264_omx_encoder_deps="omx"
2737 h264_qsv_decoder_deps="libmfx"
2738 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2739 h264_qsv_encoder_deps="libmfx"
2740 h264_qsv_encoder_select="qsvenc"
2741 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2742 h264_vaapi_encoder_select="vaapi_encode golomb"
2743 h264_vda_decoder_deps="vda"
2744 h264_vda_decoder_select="h264_decoder"
2745 h264_vdpau_decoder_deps="vdpau"
2746 h264_vdpau_decoder_select="h264_decoder"
2747 hevc_cuvid_decoder_deps="cuda cuvid"
2748 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2749 hevc_mediacodec_decoder_deps="mediacodec"
2750 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2751 hevc_nvenc_encoder_deps="nvenc"
2752 hevc_qsv_decoder_deps="libmfx"
2753 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2754 hevc_qsv_encoder_deps="libmfx"
2755 hevc_qsv_encoder_select="hevcparse qsvenc"
2756 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2757 hevc_vaapi_encoder_select="vaapi_encode golomb"
2758 mjpeg_cuvid_decoder_deps="cuda cuvid"
2759 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2760 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2761 mpeg1_cuvid_decoder_deps="cuda cuvid"
2762 mpeg1_vdpau_decoder_deps="vdpau"
2763 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2764 mpeg2_crystalhd_decoder_select="crystalhd"
2765 mpeg2_cuvid_decoder_deps="cuda cuvid"
2766 mpeg2_mmal_decoder_deps="mmal"
2767 mpeg2_mediacodec_decoder_deps="mediacodec"
2768 mpeg2_qsv_decoder_deps="libmfx"
2769 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2770 mpeg2_qsv_encoder_deps="libmfx"
2771 mpeg2_qsv_encoder_select="qsvenc"
2772 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2773 mpeg2_vaapi_encoder_select="vaapi_encode"
2774 mpeg4_crystalhd_decoder_select="crystalhd"
2775 mpeg4_cuvid_decoder_deps="cuda cuvid"
2776 mpeg4_mediacodec_decoder_deps="mediacodec"
2777 mpeg4_mmal_decoder_deps="mmal"
2778 mpeg4_omx_encoder_deps="omx"
2779 mpeg4_vdpau_decoder_deps="vdpau"
2780 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2781 mpeg_vdpau_decoder_deps="vdpau"
2782 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2783 msmpeg4_crystalhd_decoder_select="crystalhd"
2784 nvenc_h264_encoder_select="h264_nvenc_encoder"
2785 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2786 vc1_crystalhd_decoder_select="crystalhd"
2787 vc1_cuvid_decoder_deps="cuda cuvid"
2788 vc1_mmal_decoder_deps="mmal"
2789 vc1_vdpau_decoder_deps="vdpau"
2790 vc1_vdpau_decoder_select="vc1_decoder"
2791 vp8_cuvid_decoder_deps="cuda cuvid"
2792 vp8_mediacodec_decoder_deps="mediacodec"
2793 vp8_qsv_decoder_deps="libmfx"
2794 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2795 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2796 vp8_vaapi_encoder_select="vaapi_encode"
2797 vp9_cuvid_decoder_deps="cuda cuvid"
2798 vp9_mediacodec_decoder_deps="mediacodec"
2799 wmv3_crystalhd_decoder_select="crystalhd"
2800 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2801
2802 # parsers
2803 h264_parser_select="golomb h264dsp h264parse"
2804 hevc_parser_select="hevcparse"
2805 mpegaudio_parser_select="mpegaudioheader"
2806 mpegvideo_parser_select="mpegvideo"
2807 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2808 vc1_parser_select="vc1dsp"
2809
2810 # bitstream_filters
2811 mjpeg2jpeg_bsf_select="jpegtables"
2812
2813 # external libraries
2814 aac_at_decoder_deps="audiotoolbox"
2815 ac3_at_decoder_deps="audiotoolbox"
2816 ac3_at_decoder_select="ac3_parser"
2817 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2818 alac_at_decoder_deps="audiotoolbox"
2819 amr_nb_at_decoder_deps="audiotoolbox"
2820 avisynth_deps_any="dlopen LoadLibrary"
2821 avisynth_demuxer_deps="avisynth"
2822 avisynth_demuxer_select="riffdec"
2823 eac3_at_decoder_deps="audiotoolbox"
2824 eac3_at_decoder_select="ac3_parser"
2825 gsm_ms_at_decoder_deps="audiotoolbox"
2826 ilbc_at_decoder_deps="audiotoolbox"
2827 mp1_at_decoder_deps="audiotoolbox"
2828 mp2_at_decoder_deps="audiotoolbox"
2829 mp3_at_decoder_deps="audiotoolbox"
2830 mp1_at_decoder_select="mpegaudioheader"
2831 mp2_at_decoder_select="mpegaudioheader"
2832 mp3_at_decoder_select="mpegaudioheader"
2833 pcm_alaw_at_decoder_deps="audiotoolbox"
2834 pcm_mulaw_at_decoder_deps="audiotoolbox"
2835 qdmc_at_decoder_deps="audiotoolbox"
2836 qdm2_at_decoder_deps="audiotoolbox"
2837 aac_at_encoder_deps="audiotoolbox"
2838 aac_at_encoder_select="audio_frame_queue"
2839 alac_at_encoder_deps="audiotoolbox"
2840 alac_at_encoder_select="audio_frame_queue"
2841 ilbc_at_encoder_deps="audiotoolbox"
2842 ilbc_at_encoder_select="audio_frame_queue"
2843 pcm_alaw_at_encoder_deps="audiotoolbox"
2844 pcm_alaw_at_encoder_select="audio_frame_queue"
2845 pcm_mulaw_at_encoder_deps="audiotoolbox"
2846 pcm_mulaw_at_encoder_select="audio_frame_queue"
2847 chromaprint_muxer_deps="chromaprint"
2848 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2849 libcelt_decoder_deps="libcelt"
2850 libfdk_aac_decoder_deps="libfdk_aac"
2851 libfdk_aac_encoder_deps="libfdk_aac"
2852 libfdk_aac_encoder_select="audio_frame_queue"
2853 libgme_demuxer_deps="libgme"
2854 libgsm_decoder_deps="libgsm"
2855 libgsm_encoder_deps="libgsm"
2856 libgsm_ms_decoder_deps="libgsm"
2857 libgsm_ms_encoder_deps="libgsm"
2858 libilbc_decoder_deps="libilbc"
2859 libilbc_encoder_deps="libilbc"
2860 libkvazaar_encoder_deps="libkvazaar"
2861 libmodplug_demuxer_deps="libmodplug"
2862 libmp3lame_encoder_deps="libmp3lame"
2863 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2864 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2865 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2866 libopencore_amrnb_encoder_select="audio_frame_queue"
2867 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2868 libopenh264_decoder_deps="libopenh264"
2869 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2870 libopenh264_encoder_deps="libopenh264"
2871 libopenjpeg_decoder_deps="libopenjpeg"
2872 libopenjpeg_encoder_deps="libopenjpeg"
2873 libopenmpt_demuxer_deps="libopenmpt"
2874 libopus_decoder_deps="libopus"
2875 libopus_encoder_deps="libopus"
2876 libopus_encoder_select="audio_frame_queue"
2877 librsvg_decoder_deps="librsvg"
2878 libshine_encoder_deps="libshine"
2879 libshine_encoder_select="audio_frame_queue"
2880 libspeex_decoder_deps="libspeex"
2881 libspeex_encoder_deps="libspeex"
2882 libspeex_encoder_select="audio_frame_queue"
2883 libtheora_encoder_deps="libtheora"
2884 libtwolame_encoder_deps="libtwolame"
2885 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2886 libvorbis_decoder_deps="libvorbis"
2887 libvorbis_encoder_deps="libvorbis"
2888 libvorbis_encoder_select="audio_frame_queue"
2889 libvpx_vp8_decoder_deps="libvpx"
2890 libvpx_vp8_encoder_deps="libvpx"
2891 libvpx_vp9_decoder_deps="libvpx"
2892 libvpx_vp9_encoder_deps="libvpx"
2893 libwavpack_encoder_deps="libwavpack"
2894 libwavpack_encoder_select="audio_frame_queue"
2895 libwebp_encoder_deps="libwebp"
2896 libwebp_anim_encoder_deps="libwebp"
2897 libx262_encoder_deps="libx262"
2898 libx264_encoder_deps="libx264"
2899 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2900 libx264rgb_encoder_select="libx264_encoder"
2901 libx265_encoder_deps="libx265"
2902 libxavs_encoder_deps="libxavs"
2903 libxvid_encoder_deps="libxvid"
2904 libzvbi_teletext_decoder_deps="libzvbi"
2905 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2906 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2907 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2908 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2909 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2910
2911 # demuxers / muxers
2912 ac3_demuxer_select="ac3_parser"
2913 aiff_muxer_select="iso_media"
2914 asf_demuxer_select="riffdec"
2915 asf_o_demuxer_select="riffdec"
2916 asf_muxer_select="riffenc"
2917 asf_stream_muxer_select="asf_muxer"
2918 avi_demuxer_select="iso_media riffdec exif"
2919 avi_muxer_select="riffenc"
2920 caf_demuxer_select="iso_media riffdec"
2921 caf_muxer_select="iso_media"
2922 dash_muxer_select="mp4_muxer"
2923 dirac_demuxer_select="dirac_parser"
2924 dts_demuxer_select="dca_parser"
2925 dtshd_demuxer_select="dca_parser"
2926 dv_demuxer_select="dvprofile"
2927 dv_muxer_select="dvprofile"
2928 dxa_demuxer_select="riffdec"
2929 eac3_demuxer_select="ac3_parser"
2930 f4v_muxer_select="mov_muxer"
2931 fifo_muxer_deps="threads"
2932 flac_demuxer_select="flac_parser"
2933 hds_muxer_select="flv_muxer"
2934 hls_muxer_select="mpegts_muxer"
2935 image2_alias_pix_demuxer_select="image2_demuxer"
2936 image2_brender_pix_demuxer_select="image2_demuxer"
2937 ipod_muxer_select="mov_muxer"
2938 ismv_muxer_select="mov_muxer"
2939 matroska_audio_muxer_select="matroska_muxer"
2940 matroska_demuxer_select="iso_media riffdec"
2941 matroska_demuxer_suggest="bzlib lzo zlib"
2942 matroska_muxer_select="iso_media riffenc"
2943 mmf_muxer_select="riffenc"
2944 mov_demuxer_select="iso_media riffdec"
2945 mov_demuxer_suggest="zlib"
2946 mov_muxer_select="iso_media riffenc rtpenc_chain"
2947 mp3_demuxer_select="mpegaudio_parser"
2948 mp3_muxer_select="mpegaudioheader"
2949 mp4_muxer_select="mov_muxer"
2950 mpegts_demuxer_select="iso_media"
2951 mpegts_muxer_select="adts_muxer latm_muxer"
2952 mpegtsraw_demuxer_select="mpegts_demuxer"
2953 mxf_d10_muxer_select="mxf_muxer"
2954 mxf_opatom_muxer_select="mxf_muxer"
2955 nut_muxer_select="riffenc"
2956 nuv_demuxer_select="riffdec"
2957 oga_muxer_select="ogg_muxer"
2958 ogg_demuxer_select="dirac_parse"
2959 ogv_muxer_select="ogg_muxer"
2960 opus_muxer_select="ogg_muxer"
2961 psp_muxer_select="mov_muxer"
2962 rtp_demuxer_select="sdp_demuxer"
2963 rtp_muxer_select="golomb"
2964 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2965 rtsp_demuxer_select="http_protocol rtpdec"
2966 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2967 sap_demuxer_select="sdp_demuxer"
2968 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2969 sdp_demuxer_select="rtpdec"
2970 smoothstreaming_muxer_select="ismv_muxer"
2971 spdif_muxer_select="aac_parser"
2972 spx_muxer_select="ogg_muxer"
2973 swf_demuxer_suggest="zlib"
2974 tak_demuxer_select="tak_parser"
2975 tg2_muxer_select="mov_muxer"
2976 tgp_muxer_select="mov_muxer"
2977 vobsub_demuxer_select="mpegps_demuxer"
2978 w64_demuxer_select="wav_demuxer"
2979 w64_muxer_select="wav_muxer"
2980 wav_demuxer_select="riffdec"
2981 wav_muxer_select="riffenc"
2982 webm_muxer_select="iso_media riffenc"
2983 webm_dash_manifest_demuxer_select="matroska_demuxer"
2984 wtv_demuxer_select="mpegts_demuxer riffdec"
2985 wtv_muxer_select="mpegts_muxer riffenc"
2986 xmv_demuxer_select="riffdec"
2987 xwma_demuxer_select="riffdec"
2988
2989 # indevs / outdevs
2990 alsa_indev_deps="alsa"
2991 alsa_outdev_deps="alsa"
2992 avfoundation_indev_deps="pthreads"
2993 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2994 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2995 caca_outdev_deps="libcaca"
2996 decklink_indev_deps="decklink threads"
2997 decklink_indev_extralibs="-lstdc++"
2998 decklink_outdev_deps="decklink threads"
2999 decklink_outdev_extralibs="-lstdc++"
3000 dshow_indev_deps="IBaseFilter"
3001 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3002 dv1394_indev_deps="dv1394"
3003 dv1394_indev_select="dv_demuxer"
3004 fbdev_indev_deps="linux_fb_h"
3005 fbdev_outdev_deps="linux_fb_h"
3006 gdigrab_indev_deps="CreateDIBSection"
3007 gdigrab_indev_extralibs="-lgdi32"
3008 gdigrab_indev_select="bmp_decoder"
3009 iec61883_indev_deps="libiec61883"
3010 jack_indev_deps="jack"
3011 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3012 lavfi_indev_deps="avfilter"
3013 libcdio_indev_deps="libcdio"
3014 libdc1394_indev_deps="libdc1394"
3015 libv4l2_indev_deps="libv4l2"
3016 openal_indev_deps="openal"
3017 opengl_outdev_deps="opengl"
3018 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3019 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3020 pulse_indev_deps="libpulse"
3021 pulse_outdev_deps="libpulse"
3022 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3023 qtkit_indev_select="qtkit"
3024 sdl2_outdev_deps="sdl2"
3025 sndio_indev_deps="sndio"
3026 sndio_outdev_deps="sndio"
3027 v4l_indev_deps="linux_videodev_h"
3028 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3029 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3030 vfwcap_indev_deps="vfw32 vfwcap_defines"
3031 xcbgrab_indev_deps="libxcb"
3032 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3033 xv_outdev_extralibs="-lXv -lX11 -lXext"
3034
3035 # protocols
3036 async_protocol_deps="threads"
3037 bluray_protocol_deps="libbluray"
3038 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3039 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3040 ffrtmpcrypt_protocol_select="tcp_protocol"
3041 ffrtmphttp_protocol_deps="!librtmp_protocol"
3042 ffrtmphttp_protocol_select="http_protocol"
3043 ftp_protocol_select="tcp_protocol"
3044 gopher_protocol_select="network"
3045 http_protocol_select="tcp_protocol"
3046 httpproxy_protocol_select="tcp_protocol"
3047 https_protocol_select="tls_protocol"
3048 icecast_protocol_select="http_protocol"
3049 librtmp_protocol_deps="librtmp"
3050 librtmpe_protocol_deps="librtmp"
3051 librtmps_protocol_deps="librtmp"
3052 librtmpt_protocol_deps="librtmp"
3053 librtmpte_protocol_deps="librtmp"
3054 libsmbclient_protocol_deps="libsmbclient gplv3"
3055 libssh_protocol_deps="libssh"
3056 mmsh_protocol_select="http_protocol"
3057 mmst_protocol_select="network"
3058 rtmp_protocol_deps="!librtmp_protocol"
3059 rtmp_protocol_select="tcp_protocol"
3060 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3061 rtmps_protocol_deps="!librtmp_protocol"
3062 rtmps_protocol_select="tls_protocol"
3063 rtmpt_protocol_select="ffrtmphttp_protocol"
3064 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3065 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3066 rtp_protocol_select="udp_protocol"
3067 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3068 sctp_protocol_select="network"
3069 srtp_protocol_select="rtp_protocol srtp"
3070 tcp_protocol_select="network"
3071 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3072 tls_gnutls_protocol_select="tcp_protocol"
3073 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3074 tls_openssl_protocol_select="tcp_protocol"
3075 tls_schannel_protocol_deps="schannel"
3076 tls_schannel_protocol_select="tcp_protocol"
3077 tls_securetransport_protocol_deps="securetransport"
3078 tls_securetransport_protocol_select="tcp_protocol"
3079 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3080 udp_protocol_select="network"
3081 udplite_protocol_select="network"
3082 unix_protocol_deps="sys_un_h"
3083 unix_protocol_select="network"
3084
3085 # filters
3086 afftfilt_filter_deps="avcodec"
3087 afftfilt_filter_select="fft"
3088 afir_filter_deps="avcodec"
3089 afir_filter_select="fft"
3090 amovie_filter_deps="avcodec avformat"
3091 aresample_filter_deps="swresample"
3092 ass_filter_deps="libass"
3093 atempo_filter_deps="avcodec"
3094 atempo_filter_select="rdft"
3095 azmq_filter_deps="libzmq"
3096 blackframe_filter_deps="gpl"
3097 boxblur_filter_deps="gpl"
3098 bs2b_filter_deps="libbs2b"
3099 colormatrix_filter_deps="gpl"
3100 cover_rect_filter_deps="avcodec avformat gpl"
3101 cropdetect_filter_deps="gpl"
3102 deinterlace_qsv_filter_deps="libmfx"
3103 deinterlace_vaapi_filter_deps="vaapi"
3104 delogo_filter_deps="gpl"
3105 deshake_filter_select="pixelutils"
3106 drawtext_filter_deps="libfreetype"
3107 elbg_filter_deps="avcodec"
3108 eq_filter_deps="gpl"
3109 fftfilt_filter_deps="avcodec"
3110 fftfilt_filter_select="rdft"
3111 find_rect_filter_deps="avcodec avformat gpl"
3112 firequalizer_filter_deps="avcodec"
3113 firequalizer_filter_select="rdft"
3114 flite_filter_deps="libflite"
3115 framerate_filter_select="pixelutils"
3116 frei0r_filter_deps="frei0r dlopen"
3117 frei0r_src_filter_deps="frei0r dlopen"
3118 fspp_filter_deps="gpl"
3119 geq_filter_deps="gpl"
3120 histeq_filter_deps="gpl"
3121 hqdn3d_filter_deps="gpl"
3122 interlace_filter_deps="gpl"
3123 kerndeint_filter_deps="gpl"
3124 ladspa_filter_deps="ladspa dlopen"
3125 mcdeint_filter_deps="avcodec gpl"
3126 movie_filter_deps="avcodec avformat"
3127 mpdecimate_filter_deps="gpl"
3128 mpdecimate_filter_select="pixelutils"
3129 mptestsrc_filter_deps="gpl"
3130 negate_filter_deps="lut_filter"
3131 nnedi_filter_deps="gpl"
3132 ocr_filter_deps="libtesseract"
3133 ocv_filter_deps="libopencv"
3134 owdenoise_filter_deps="gpl"
3135 pan_filter_deps="swresample"
3136 perspective_filter_deps="gpl"
3137 phase_filter_deps="gpl"
3138 pp7_filter_deps="gpl"
3139 pp_filter_deps="gpl postproc"
3140 pullup_filter_deps="gpl"
3141 removelogo_filter_deps="avcodec avformat swscale"
3142 repeatfields_filter_deps="gpl"
3143 resample_filter_deps="avresample"
3144 rubberband_filter_deps="librubberband"
3145 sab_filter_deps="gpl swscale"
3146 scale2ref_filter_deps="swscale"
3147 scale_filter_deps="swscale"
3148 scale_qsv_filter_deps="libmfx"
3149 select_filter_select="pixelutils"
3150 showcqt_filter_deps="avcodec avformat swscale"
3151 showcqt_filter_select="fft"
3152 showfreqs_filter_deps="avcodec"
3153 showfreqs_filter_select="fft"
3154 showspectrum_filter_deps="avcodec"
3155 showspectrum_filter_select="fft"
3156 showspectrumpic_filter_deps="avcodec"
3157 showspectrumpic_filter_select="fft"
3158 signature_filter_deps="gpl avcodec avformat"
3159 smartblur_filter_deps="gpl swscale"
3160 sofalizer_filter_deps="libmysofa avcodec"
3161 sofalizer_filter_select="fft"
3162 spectrumsynth_filter_deps="avcodec"
3163 spectrumsynth_filter_select="fft"
3164 spp_filter_deps="gpl avcodec"
3165 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3166 stereo3d_filter_deps="gpl"
3167 subtitles_filter_deps="avformat avcodec libass"
3168 super2xsai_filter_deps="gpl"
3169 pixfmts_super2xsai_test_deps="super2xsai_filter"
3170 tinterlace_filter_deps="gpl"
3171 tinterlace_merge_test_deps="tinterlace_filter"
3172 tinterlace_pad_test_deps="tinterlace_filter"
3173 uspp_filter_deps="gpl avcodec"
3174 vaguedenoiser_filter_deps="gpl"
3175 vidstabdetect_filter_deps="libvidstab"
3176 vidstabtransform_filter_deps="libvidstab"
3177 zmq_filter_deps="libzmq"
3178 zoompan_filter_deps="swscale"
3179 zscale_filter_deps="libzimg"
3180 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3181
3182 # examples
3183 avio_dir_cmd_deps="avformat avutil"
3184 avio_reading_deps="avformat avcodec avutil"
3185 decode_audio_example_deps="avcodec avutil"
3186 decode_video_example_deps="avcodec avutil"
3187 demuxing_decoding_example_deps="avcodec avformat avutil"
3188 encode_audio_example_deps="avcodec avutil"
3189 encode_video_example_deps="avcodec avutil"
3190 extract_mvs_example_deps="avcodec avformat avutil"
3191 filter_audio_example_deps="avfilter avutil"
3192 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3193 filtering_video_example_deps="avfilter avcodec avformat avutil"
3194 http_multiclient_example_deps="avformat avutil fork"
3195 metadata_example_deps="avformat avutil"
3196 muxing_example_deps="avcodec avformat avutil swscale"
3197 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3198 remuxing_example_deps="avcodec avformat avutil"
3199 resampling_audio_example_deps="avutil swresample"
3200 scaling_video_example_deps="avutil swscale"
3201 transcode_aac_example_deps="avcodec avformat swresample"
3202 transcoding_example_deps="avfilter avcodec avformat avutil"
3203
3204 # libraries, in linking order
3205 avcodec_deps="avutil"
3206 avcodec_select="null_bsf"
3207 avdevice_deps="avformat avcodec avutil"
3208 avfilter_deps="avutil"
3209 avformat_deps="avcodec avutil"
3210 avresample_deps="avutil"
3211 postproc_deps="avutil gpl"
3212 swresample_deps="avutil"
3213 swscale_deps="avutil"
3214
3215 # programs
3216 ffmpeg_deps="avcodec avfilter avformat swresample"
3217 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3218                null_filter
3219                trim_filter"
3220 ffplay_deps="avcodec avformat swscale swresample sdl2"
3221 ffplay_extralibs='$sdl2_extralibs'
3222 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3223 ffprobe_deps="avcodec avformat"
3224 ffserver_deps="avformat fork sarestart"
3225 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3226
3227 # documentation
3228 podpages_deps="perl"
3229 manpages_deps="perl pod2man"
3230 htmlpages_deps="perl"
3231 htmlpages_deps_any="makeinfo_html texi2html"
3232 txtpages_deps="perl makeinfo"
3233 doc_deps_any="manpages htmlpages podpages txtpages"
3234
3235 # default parameters
3236
3237 logfile="ffbuild/config.log"
3238
3239 # installation paths
3240 prefix_default="/usr/local"
3241 bindir_default='${prefix}/bin'
3242 datadir_default='${prefix}/share/ffmpeg'
3243 docdir_default='${prefix}/share/doc/ffmpeg'
3244 incdir_default='${prefix}/include'
3245 libdir_default='${prefix}/lib'
3246 mandir_default='${prefix}/share/man'
3247
3248 # toolchain
3249 ar_default="ar"
3250 cc_default="gcc"
3251 cxx_default="g++"
3252 host_cc_default="gcc"
3253 doxygen_default="doxygen"
3254 install="install"
3255 ln_s_default="ln -s -f"
3256 nm_default="nm -g"
3257 objformat="elf"
3258 pkg_config_default=pkg-config
3259 ranlib_default="ranlib"
3260 strip_default="strip"
3261 version_script='--version-script'
3262 yasmexe_default="yasm"
3263 windres_default="windres"
3264 nvcc_default="nvcc"
3265 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3266
3267 # OS
3268 target_os_default=$(tolower $(uname -s))
3269 host_os=$target_os_default
3270
3271 # machine
3272 if test "$target_os_default" = aix; then
3273     arch_default=$(uname -p)
3274     strip_default="strip -X32_64"
3275 else
3276     arch_default=$(uname -m)
3277 fi
3278 cpu="generic"
3279 intrinsics="none"
3280
3281 # configurable options
3282 enable $PROGRAM_LIST
3283 enable $DOCUMENT_LIST
3284 enable $EXAMPLE_LIST
3285 enable $(filter_out avresample $LIBRARY_LIST)
3286 enable stripping
3287
3288 enable asm
3289 enable debug
3290 enable doc
3291 enable faan faandct faanidct
3292 enable optimizations
3293 enable runtime_cpudetect
3294 enable safe_bitstream_reader
3295 enable static
3296 enable swscale_alpha
3297 enable valgrind_backtrace
3298
3299 sws_max_filter_size_default=256
3300 set_default sws_max_filter_size
3301
3302 # build settings
3303 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3304 LIBPREF="lib"
3305 LIBSUF=".a"
3306 FULLNAME='$(NAME)$(BUILDSUF)'
3307 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3308 SLIBPREF="lib"
3309 SLIBSUF=".so"
3310 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3311 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3312 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3313 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3314 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3315 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3316 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3317
3318 asflags_filter=echo
3319 cflags_filter=echo
3320 ldflags_filter=echo
3321
3322 AS_C='-c'
3323 AS_O='-o $@'
3324 CC_C='-c'
3325 CC_E='-E -o $@'
3326 CC_O='-o $@'
3327 CXX_C='-c'
3328 CXX_O='-o $@'
3329 OBJCC_C='-c'
3330 OBJCC_E='-E -o $@'
3331 OBJCC_O='-o $@'
3332 LD_O='-o $@'
3333 LD_LIB='-l%'
3334 LD_PATH='-L'
3335 HOSTCC_C='-c'
3336 HOSTCC_E='-E -o $@'
3337 HOSTCC_O='-o $@'
3338 HOSTLD_O='-o $@'
3339 NVCC_C='-c'
3340 NVCC_O='-o $@'
3341
3342 host_extralibs='-lm'
3343 host_cflags_filter=echo
3344 host_ldflags_filter=echo
3345
3346 target_path='$(CURDIR)'
3347
3348 # since the object filename is not given with the -MM flag, the compiler
3349 # is only able to print the basename, and we must add the path ourselves
3350 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3351 DEPFLAGS='-MM'
3352
3353 # find source path
3354 if test -f configure; then
3355     source_path=.
3356 else
3357     source_path=$(cd $(dirname "$0"); pwd)
3358     case "$source_path" in
3359         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3360     esac
3361     test -e "$source_path/config.h" &&
3362         die "Out of tree builds are impossible with config.h in source dir."
3363 fi
3364
3365 for v in "$@"; do
3366     r=${v#*=}
3367     l=${v%"$r"}
3368     r=$(sh_quote "$r")
3369     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3370 done
3371
3372 find_things(){
3373     thing=$1
3374     pattern=$2
3375     file=$source_path/$3
3376     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3377 }
3378
3379 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3380 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3381 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3382 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3383 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3384 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3385 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3386 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3387 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3388
3389 find_things_extern(){
3390     thing=$1
3391     pattern=$2
3392     file=$source_path/$3
3393     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3394 }
3395
3396 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3397 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3398
3399 ALL_COMPONENTS="
3400     $BSF_LIST
3401     $DECODER_LIST
3402     $DEMUXER_LIST
3403     $ENCODER_LIST
3404     $FILTER_LIST
3405     $HWACCEL_LIST
3406     $INDEV_LIST
3407     $MUXER_LIST
3408     $OUTDEV_LIST
3409     $PARSER_LIST
3410     $PROTOCOL_LIST
3411 "
3412
3413 for n in $COMPONENT_LIST; do
3414     v=$(toupper ${n%s})_LIST
3415     eval enable \$$v
3416     eval ${n}_if_any="\$$v"
3417 done
3418
3419 enable $ARCH_EXT_LIST
3420
3421 die_unknown(){
3422     echo "Unknown option \"$1\"."
3423     echo "See $0 --help for available options."
3424     exit 1
3425 }
3426
3427 print_in_columns() {
3428     cols=$(expr $ncols / 24)
3429     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3430 }
3431
3432 show_list() {
3433     suffix=_$1
3434     shift
3435     echo $* | sed s/$suffix//g | print_in_columns
3436     exit 0
3437 }
3438
3439 rand_list(){
3440     IFS=', '
3441     set -- $*
3442     unset IFS
3443     for thing; do
3444         comp=${thing%:*}
3445         prob=${thing#$comp}
3446         prob=${prob#:}
3447         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3448         echo "prob ${prob:-0.5}"
3449         printf '%s\n' $comp
3450     done
3451 }
3452
3453 do_random(){
3454     action=$1
3455     shift
3456     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3457     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3458 }
3459
3460 for opt do
3461     optval="${opt#*=}"
3462     case "$opt" in
3463         --extra-ldflags=*)
3464             add_ldflags $optval
3465         ;;
3466         --extra-ldexeflags=*)
3467             add_ldexeflags $optval
3468         ;;
3469         --extra-ldlibflags=*)
3470             add_ldlibflags $optval
3471         ;;
3472         --extra-libs=*)
3473             add_extralibs $optval
3474         ;;
3475         --disable-devices)
3476             disable $INDEV_LIST $OUTDEV_LIST
3477         ;;
3478         --enable-debug=*)
3479             debuglevel="$optval"
3480         ;;
3481         --disable-programs)
3482             disable $PROGRAM_LIST
3483         ;;
3484         --disable-everything)
3485             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3486         ;;
3487         --disable-all)
3488             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3489             disable $LIBRARY_LIST $PROGRAM_LIST doc
3490             enable avutil
3491         ;;
3492         --enable-random|--disable-random)
3493             action=${opt%%-random}
3494             do_random ${action#--} $COMPONENT_LIST
3495         ;;
3496         --enable-random=*|--disable-random=*)
3497             action=${opt%%-random=*}
3498             do_random ${action#--} $optval
3499         ;;
3500         --enable-*=*|--disable-*=*)
3501             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3502             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3503             eval list=\$$(toupper $thing)_LIST
3504             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3505             list=$(filter "$name" $list)
3506             [ "$list" = "" ] && warn "Option $opt did not match anything"
3507             $action $list
3508         ;;
3509         --enable-?*|--disable-?*)
3510             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3511             if is_in $option $COMPONENT_LIST; then
3512                 test $action = disable && action=unset
3513                 eval $action \$$(toupper ${option%s})_LIST
3514             elif is_in $option $CMDLINE_SELECT; then
3515                 $action $option
3516             else
3517                 die_unknown $opt
3518             fi
3519         ;;
3520         --list-*)
3521             NAME="${opt#--list-}"
3522             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3523             NAME=${NAME%s}
3524             eval show_list $NAME \$$(toupper $NAME)_LIST
3525         ;;
3526         --help|-h) show_help
3527         ;;
3528         --quiet|-q) quiet=yes
3529         ;;
3530         --fatal-warnings) enable fatal_warnings
3531         ;;
3532         --libfuzzer=*)
3533             libfuzzer_path="$optval"
3534         ;;
3535         *)
3536             optname="${opt%%=*}"
3537             optname="${optname#--}"
3538             optname=$(echo "$optname" | sed 's/-/_/g')
3539             if is_in $optname $CMDLINE_SET; then
3540                 eval $optname='$optval'
3541             elif is_in $optname $CMDLINE_APPEND; then
3542                 append $optname "$optval"
3543             else
3544                 die_unknown $opt
3545             fi
3546         ;;
3547     esac
3548 done
3549
3550 for e in $env; do
3551     eval "export $e"
3552 done
3553
3554 # Mark specifically enabled, but normally autodetected libraries as requested.
3555 for lib in $AUTODETECT_LIBS; do
3556     enabled $lib && request $lib
3557 done
3558
3559 # Enable platform codecs by default.
3560 enable_weak audiotoolbox
3561
3562 # Enable hwaccels by default.
3563 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3564 enable_weak xlib
3565
3566 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3567
3568 disabled logging && logfile=/dev/null
3569
3570 die_license_disabled() {
3571     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3572 }
3573
3574 die_license_disabled_gpl() {
3575     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3576 }
3577
3578 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3579 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3580
3581 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3582 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3583
3584 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3585
3586 # Disable all the library-specific components if the library itself
3587 # is disabled, see AVCODEC_LIST and following _LIST variables.
3588
3589 disable_components(){
3590     disabled ${1} && disable $(
3591         eval components="\$$(toupper ${1})_COMPONENTS"
3592         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3593     )
3594 }
3595
3596 map 'disable_components $v' $LIBRARY_LIST
3597
3598 mkdir -p ffbuild
3599 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3600 set >> $logfile
3601
3602 test -n "$valgrind" && toolchain="valgrind-memcheck"
3603
3604 enabled ossfuzz && {
3605     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3606     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3607 }
3608
3609 case "$toolchain" in
3610     *-asan)
3611         cc_default="${toolchain%-asan}"
3612         add_cflags  -fsanitize=address
3613         add_ldflags -fsanitize=address
3614     ;;
3615     *-msan)
3616         cc_default="${toolchain%-msan}"
3617         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3618         add_ldflags -fsanitize=memory
3619     ;;
3620     *-tsan)
3621         cc_default="${toolchain%-tsan}"
3622         add_cflags  -fsanitize=thread -fPIE
3623         add_ldflags -fsanitize=thread -pie
3624         case "$toolchain" in
3625             gcc-tsan)
3626                 add_cflags  -fPIC
3627                 add_ldflags -fPIC
3628                 ;;
3629         esac
3630     ;;
3631     *-usan)
3632         cc_default="${toolchain%-usan}"
3633         add_cflags  -fsanitize=undefined
3634         add_ldflags -fsanitize=undefined
3635     ;;
3636     valgrind-*)
3637         target_exec_default="valgrind"
3638         case "$toolchain" in
3639             valgrind-massif)
3640                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3641                 ;;
3642             valgrind-memcheck)
3643                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3644                 ;;
3645         esac
3646     ;;
3647     msvc)
3648         # Check whether the current MSVC version needs the C99 converter.
3649         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3650         # support enough of C99 to build ffmpeg. Default to the new
3651         # behaviour if the regexp was unable to match anything, since this
3652         # successfully parses the version number of existing supported
3653         # versions that require the converter (MSVC 2010 and 2012).
3654         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3655         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3656             cc_default="cl"
3657             cxx_default="cl"
3658         else
3659             cc_default="c99wrap cl"
3660             cxx_default="c99wrap cl"
3661         fi
3662         ld_default="$source_path/compat/windows/mslink"
3663         nm_default="dumpbin -symbols"
3664         ar_default="lib"
3665         case "$arch" in
3666         arm*)
3667             as_default="armasm"
3668             ;;
3669         esac
3670         target_os_default="win32"
3671         # Use a relative path for TMPDIR. This makes sure all the
3672         # ffconf temp files are written with a relative path, avoiding
3673         # issues with msys/win32 path conversion for MSVC parameters
3674         # such as -Fo<file> or -out:<file>.
3675         TMPDIR=.
3676     ;;
3677     icl)
3678         cc_default="icl"
3679         ld_default="xilink"
3680         nm_default="dumpbin -symbols"
3681         ar_default="xilib"
3682         target_os_default="win32"
3683         TMPDIR=.
3684     ;;
3685     gcov)
3686         add_cflags  -fprofile-arcs -ftest-coverage
3687         add_ldflags -fprofile-arcs -ftest-coverage
3688     ;;
3689     llvm-cov)
3690         add_cflags -fprofile-arcs -ftest-coverage
3691         add_ldflags --coverage
3692     ;;
3693     hardened)
3694         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3695         add_cflags   -fno-strict-overflow -fstack-protector-all
3696         add_ldflags  -Wl,-z,relro -Wl,-z,now
3697         add_cflags   -fPIE
3698         add_ldexeflags -fPIE -pie
3699     ;;
3700     ?*)
3701         die "Unknown toolchain $toolchain"
3702     ;;
3703 esac
3704
3705 test -n "$cross_prefix" && enable cross_compile
3706
3707 if enabled cross_compile; then
3708     test -n "$arch" && test -n "$target_os" ||
3709         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3710 fi
3711
3712 ar_default="${cross_prefix}${ar_default}"
3713 cc_default="${cross_prefix}${cc_default}"
3714 cxx_default="${cross_prefix}${cxx_default}"
3715 nm_default="${cross_prefix}${nm_default}"
3716 pkg_config_default="${cross_prefix}${pkg_config_default}"
3717 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3718     ranlib_default="${cross_prefix}${ranlib_default} -D"
3719 else
3720     ranlib_default="${cross_prefix}${ranlib_default}"
3721 fi
3722 strip_default="${cross_prefix}${strip_default}"
3723 windres_default="${cross_prefix}${windres_default}"
3724
3725 sysinclude_default="${sysroot}/usr/include"
3726
3727 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3728     target_exec target_os yasmexe nvcc
3729 enabled cross_compile || host_cc_default=$cc
3730 set_default host_cc
3731
3732 pkg_config_fail_message=""
3733 if ! $pkg_config --version >/dev/null 2>&1; then
3734     warn "$pkg_config not found, library detection may fail."
3735     pkg_config=false
3736 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3737     pkg_config_fail_message="
3738 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3739 fi
3740
3741 if test $doxygen != $doxygen_default && \
3742   ! $doxygen --version >/dev/null 2>&1; then
3743     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3744 fi
3745
3746 exesuf() {
3747     case $1 in
3748         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3749     esac
3750 }
3751
3752 EXESUF=$(exesuf $target_os)
3753 HOSTEXESUF=$(exesuf $host_os)
3754
3755 # set temporary file name
3756 : ${TMPDIR:=$TEMPDIR}
3757 : ${TMPDIR:=$TMP}
3758 : ${TMPDIR:=/tmp}
3759
3760 if [ -n "$tempprefix" ] ; then
3761     mktemp(){
3762         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3763         echo "$tmpname"
3764         mkdir "$tmpname"
3765     }
3766 elif ! check_cmd mktemp -u XXXXXX; then
3767     # simple replacement for missing mktemp
3768     # NOT SAFE FOR GENERAL USE
3769     mktemp(){
3770         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3771         echo "$tmpname"
3772         mkdir "$tmpname"
3773     }
3774 fi
3775
3776 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3777     die "Unable to create temporary directory in $TMPDIR."
3778
3779 tmpfile(){
3780     tmp="${FFTMPDIR}/test"$2
3781     (set -C; exec > $tmp) 2> /dev/null ||
3782         die "Unable to create temporary file in $FFTMPDIR."
3783     eval $1=$tmp
3784 }
3785
3786 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3787 trap 'exit 2' INT
3788
3789 tmpfile TMPASM .asm
3790 tmpfile TMPC   .c
3791 tmpfile TMPCPP .cpp
3792 tmpfile TMPE   $EXESUF
3793 tmpfile TMPH   .h
3794 tmpfile TMPM   .m
3795 tmpfile TMPO   .o
3796 tmpfile TMPS   .S
3797 tmpfile TMPSH  .sh
3798 tmpfile TMPV   .ver
3799
3800 unset -f mktemp
3801
3802 chmod +x $TMPE
3803
3804 # make sure we can execute files in $TMPDIR
3805 cat > $TMPSH 2>> $logfile <<EOF
3806 #! /bin/sh
3807 EOF
3808 chmod +x $TMPSH >> $logfile 2>&1
3809 if ! $TMPSH >> $logfile 2>&1; then
3810     cat <<EOF
3811 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3812 variable to another directory and make sure that it is not mounted noexec.
3813 EOF
3814     die "Sanity test failed."
3815 fi
3816
3817 armasm_flags(){
3818     for flag; do
3819         case $flag in
3820             # Filter out MSVC cl.exe options from cflags that shouldn't
3821             # be passed to gas-preprocessor
3822             -M[TD]*)                                            ;;
3823             *)                  echo $flag                      ;;
3824         esac
3825    done
3826 }
3827
3828 ccc_flags(){
3829     for flag; do
3830         case $flag in
3831             -std=c99)           echo -c99                       ;;
3832             -mcpu=*)            echo -arch ${flag#*=}           ;;
3833             -mieee)             echo -ieee                      ;;
3834             -O*|-fast)          echo $flag                      ;;
3835             -fno-math-errno)    echo -assume nomath_errno       ;;
3836             -g)                 echo -g3                        ;;
3837             -Wall)              echo -msg_enable level2         ;;
3838             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3839             -Wl,*)              echo $flag                      ;;
3840             -f*|-W*)                                            ;;
3841             *)                  echo $flag                      ;;
3842         esac
3843    done
3844 }
3845
3846 cparser_flags(){
3847     for flag; do
3848         case $flag in
3849             -Wno-switch)             echo -Wno-switch-enum ;;
3850             -Wno-format-zero-length) ;;
3851             -Wdisabled-optimization) ;;
3852             -Wno-pointer-sign)       echo -Wno-other ;;
3853             *)                       echo $flag ;;
3854         esac
3855     done
3856 }
3857
3858 msvc_common_flags(){
3859     for flag; do
3860         case $flag in
3861             # In addition to specifying certain flags under the compiler
3862             # specific filters, they must be specified here as well or else the
3863             # generic catch all at the bottom will print the original flag.
3864             -Wall)                ;;
3865             -Wextra)              ;;
3866             -std=c99)             ;;
3867             # Common flags
3868             -fomit-frame-pointer) ;;
3869             -g)                   echo -Z7 ;;
3870             -fno-math-errno)      ;;
3871             -fno-common)          ;;
3872             -fno-signed-zeros)    ;;
3873             -fPIC)                ;;
3874             -mthumb)              ;;
3875             -march=*)             ;;
3876             -lz)                  echo zlib.lib ;;
3877             -lx264)               echo libx264.lib ;;
3878             -lstdc++)             ;;
3879             -l*)                  echo ${flag#-l}.lib ;;
3880             -LARGEADDRESSAWARE)   echo $flag ;;
3881             -L*)                  echo -libpath:${flag#-L} ;;
3882             *)                    echo $flag ;;
3883         esac
3884     done
3885 }
3886
3887 msvc_flags(){
3888     msvc_common_flags "$@"
3889     for flag; do
3890         case $flag in
3891             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3892                                        -wd4554 ;;
3893             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3894                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3895                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3896                                        -wd4307 \
3897                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3898         esac
3899     done
3900 }
3901
3902 icl_flags(){
3903     msvc_common_flags "$@"
3904     for flag; do
3905         case $flag in
3906             # Despite what Intel's documentation says -Wall, which is supported
3907             # on Windows, does enable remarks so disable them here.
3908             -Wall)                echo $flag -Qdiag-disable:remark ;;
3909             -std=c99)             echo -Qstd=c99 ;;
3910             -flto)                echo -ipo ;;
3911         esac
3912     done
3913 }
3914
3915 icc_flags(){
3916     for flag; do
3917         case $flag in
3918             -flto)                echo -ipo ;;
3919             *)                    echo $flag ;;
3920         esac
3921     done
3922 }
3923
3924 pgi_flags(){
3925     for flag; do
3926         case $flag in
3927             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3928             -fomit-frame-pointer) echo -Mnoframe ;;
3929             -g)                   echo -gopt ;;
3930             *)                    echo $flag ;;
3931         esac
3932     done
3933 }
3934
3935 suncc_flags(){
3936     for flag; do
3937         case $flag in
3938             -march=*|-mcpu=*)
3939                 case "${flag#*=}" in
3940                     native)                   echo -xtarget=native       ;;
3941                     v9|niagara)               echo -xarch=sparc          ;;
3942                     ultrasparc)               echo -xarch=sparcvis       ;;
3943                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3944                     i586|pentium)             echo -xchip=pentium        ;;
3945                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3946                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3947                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3948                     pentium4*)          echo -xtarget=pentium4           ;;
3949                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3950                     *-sse3)             echo -xarch=sse3                 ;;
3951                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3952                     bonnell)                   echo -xarch=ssse3         ;;
3953                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3954                     westmere)                  echo -xtarget=westmere    ;;
3955                     silvermont)                echo -xarch=sse4_2        ;;
3956                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3957                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3958                                                echo -xarch=avx           ;;
3959                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3960                     btver1)                    echo -xarch=amdsse4a      ;;
3961                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3962                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3963                     k8|opteron|athlon64|athlon-fx)
3964                                                echo -xarch=sse2a         ;;
3965                     athlon*)                   echo -xarch=pentium_proa  ;;
3966                 esac
3967                 ;;
3968             -std=c99)             echo -xc99              ;;
3969             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3970             -fPIC)                echo -KPIC -xcode=pic32 ;;
3971             -W*,*)                echo $flag              ;;
3972             -f*-*|-W*|-mimpure-text)                      ;;
3973             -shared)              echo -G                 ;;
3974             *)                    echo $flag              ;;
3975         esac
3976     done
3977 }
3978
3979 tms470_flags(){
3980     for flag; do
3981         case $flag in
3982             -march=*|-mcpu=*)
3983                 case "${flag#*=}" in
3984                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3985                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3986                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3987                     armv6*|arm11*)          echo -mv=6   ;;
3988                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3989                                             echo -mv=5e  ;;
3990                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3991                 esac
3992                 ;;
3993             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3994             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3995             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3996             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3997             -msoft-float)   echo --float_support=vfplib       ;;
3998             -O[0-3]|-mf=*)  echo $flag                        ;;
3999             -g)             echo -g -mn                       ;;
4000             -pds=*)         echo $flag                        ;;
4001             -D*|-I*)        echo $flag                        ;;
4002             --gcc|--abi=*)  echo $flag                        ;;
4003             -me)            echo $flag                        ;;
4004         esac
4005     done
4006 }
4007
4008 probe_cc(){
4009     pfx=$1
4010     _cc=$2
4011     first=$3
4012
4013     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4014     unset _ld_o _ldflags _ld_lib _ld_path
4015     unset _depflags _DEPCMD _DEPFLAGS
4016     _flags_filter=echo
4017
4018     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4019         true # no-op to avoid reading stdin in following checks
4020     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4021         _type=llvm_gcc
4022         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4023         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4024         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4025         _cflags_speed='-O3'
4026         _cflags_size='-Os'
4027     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4028         _type=gcc
4029         gcc_version=$($_cc --version | head -n1)
4030         gcc_basever=$($_cc -dumpversion)
4031         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4032         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4033         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4034         case $gcc_basever in
4035             2) ;;
4036             2.*) ;;
4037             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4038         esac
4039         if [ "$first" = true ]; then
4040             case $gcc_basever in
4041                 4.2*)
4042                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4043             esac
4044         fi
4045         _cflags_speed='-O3'
4046         _cflags_size='-Os'
4047     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4048         _type=icc
4049         _ident=$($_cc --version | head -n1)
4050         _depflags='-MMD'
4051         _cflags_speed='-O3'
4052         _cflags_size='-Os'
4053         _cflags_noopt='-O1'
4054         _flags_filter=icc_flags
4055     elif $_cc -v 2>&1 | grep -q xlc; then
4056         _type=xlc
4057         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4058         _cflags_speed='-O5'
4059         _cflags_size='-O5 -qcompact'
4060     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4061         _type=ccc
4062         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4063         _DEPFLAGS='-M'
4064         _cflags_speed='-fast'
4065         _cflags_size='-O1'
4066         _flags_filter=ccc_flags
4067     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4068         test -d "$sysroot" || die "No valid sysroot specified."
4069         _type=armcc
4070         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4071         armcc_conf="$PWD/armcc.conf"
4072         $_cc --arm_linux_configure                 \
4073              --arm_linux_config_file="$armcc_conf" \
4074              --configure_sysroot="$sysroot"        \
4075              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4076              die "Error creating armcc configuration file."
4077         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4078         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4079         as_default="${cross_prefix}gcc"
4080         _depflags='-MMD'
4081         _cflags_speed='-O3'
4082         _cflags_size='-Os'
4083     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4084         _type=tms470
4085         _ident=$($_cc -version | head -n1 | tr -s ' ')
4086         _flags='--gcc --abi=eabi -me'
4087         _cc_e='-ppl -fe=$@'
4088         _cc_o='-fe=$@'
4089         _depflags='-ppa -ppd=$(@:.o=.d)'
4090         _cflags_speed='-O3 -mf=5'
4091         _cflags_size='-O3 -mf=2'
4092         _flags_filter=tms470_flags
4093     elif $_cc -v 2>&1 | grep -q clang; then
4094         _type=clang
4095         _ident=$($_cc --version 2>/dev/null | head -n1)
4096         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4097         _cflags_speed='-O3'
4098         _cflags_size='-Oz'
4099     elif $_cc -V 2>&1 | grep -q Sun; then
4100         _type=suncc
4101         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4102         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4103         _DEPFLAGS='-xM1 -xc99'
4104         _ldflags='-std=c99'
4105         _cflags_speed='-O5'
4106         _cflags_size='-O5 -xspace'
4107         _flags_filter=suncc_flags
4108     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4109         _type=pathscale
4110         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4111         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4112         _cflags_speed='-O2'
4113         _cflags_size='-Os'
4114         _flags_filter='filter_out -Wdisabled-optimization'
4115     elif $_cc -v 2>&1 | grep -q Open64; then
4116         _type=open64
4117         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4118         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4119         _cflags_speed='-O2'
4120         _cflags_size='-Os'
4121         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4122     elif $_cc -V 2>&1 | grep -q Portland; then
4123         _type=pgi
4124         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4125         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4126         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4127         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4128         _cflags_noopt="-O"
4129         _flags_filter=pgi_flags
4130     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4131         _type=armasm
4132         _ident=$($_cc | head -n1)
4133         # 4509: "This form of conditional instruction is deprecated"
4134         _flags="-nologo -ignore 4509"
4135         _flags_filter=armasm_flags
4136     elif $_cc 2>&1 | grep -q Intel; then
4137         _type=icl
4138         _ident=$($_cc 2>&1 | head -n1)
4139         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4140         # Not only is O3 broken on 13.x+ but it is slower on all previous
4141         # versions (tested) as well.
4142         _cflags_speed="-O2"
4143         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4144         if $_cc 2>&1 | grep -q Linker; then
4145             _ld_o='-out:$@'
4146         else
4147             _ld_o='-Fe$@'
4148         fi
4149         _cc_o='-Fo$@'
4150         _cc_e='-P'
4151         _flags_filter=icl_flags
4152         _ld_lib='lib%.a'
4153         _ld_path='-libpath:'
4154         # -Qdiag-error to make icl error when seeing certain unknown arguments
4155         _flags='-nologo -Qdiag-error:4044,10157'
4156         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4157         # with MSVC which enables it by default.
4158         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4159         disable stripping
4160     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4161         # lld can emulate multiple different linkers; in ms link.exe mode,
4162         # the -? parameter gives the help output which contains an identifyable
4163         # string, while it gives an error in other modes.
4164         _type=lld-link
4165         # The link.exe mode doesn't have a switch for getting the version,
4166         # but we can force it back to gnu mode and get the version from there.
4167         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4168         _ld_o='-out:$@'
4169         _flags_filter=msvc_flags
4170         _ld_lib='lib%.a'
4171         _ld_path='-libpath:'
4172     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4173         _type=msvc
4174         _ident=$($_cc 2>&1 | head -n1)
4175         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4176         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4177         _cflags_speed="-O2"
4178         _cflags_size="-O1"
4179         _cflags_noopt="-O1"
4180         if $_cc -nologo- 2>&1 | grep -q Linker; then
4181             _ld_o='-out:$@'
4182         else
4183             _ld_o='-Fe$@'
4184         fi
4185         _cc_o='-Fo$@'
4186         _cc_e='-P -Fi$@'
4187         _flags_filter=msvc_flags
4188         _ld_lib='lib%.a'
4189         _ld_path='-libpath:'
4190         _flags='-nologo'
4191         disable stripping
4192     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4193         _type=cparser
4194         _ident=$($_cc --version | head -n1)
4195         _depflags='-MMD'
4196         _cflags_speed='-O4'
4197         _cflags_size='-O2'
4198         _flags_filter=cparser_flags
4199     fi
4200
4201     eval ${pfx}_type=\$_type
4202     eval ${pfx}_ident=\$_ident
4203 }
4204
4205 set_ccvars(){
4206     eval ${1}_C=\${_cc_c-\${${1}_C}}
4207     eval ${1}_E=\${_cc_e-\${${1}_E}}
4208     eval ${1}_O=\${_cc_o-\${${1}_O}}
4209
4210     if [ -n "$_depflags" ]; then
4211         eval ${1}_DEPFLAGS=\$_depflags
4212     else
4213         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4214         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4215         eval DEP${1}FLAGS=\$_flags
4216     fi
4217 }
4218
4219 probe_cc cc "$cc" "true"
4220 cflags_filter=$_flags_filter
4221 cflags_speed=$_cflags_speed
4222 cflags_size=$_cflags_size
4223 cflags_noopt=$_cflags_noopt
4224 add_cflags $_flags $_cflags
4225 cc_ldflags=$_ldflags
4226 set_ccvars CC
4227 set_ccvars CXX
4228
4229 probe_cc hostcc "$host_cc"
4230 host_cflags_filter=$_flags_filter
4231 host_cflags_speed=$_cflags_speed
4232 add_host_cflags  $_flags $_cflags
4233 set_ccvars HOSTCC
4234
4235 test -n "$cc_type" && enable $cc_type ||
4236     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4237
4238 : ${as_default:=$cc}
4239 : ${objcc_default:=$cc}
4240 : ${dep_cc_default:=$cc}
4241 : ${ld_default:=$cc}
4242 : ${host_ld_default:=$host_cc}
4243 set_default ar as objcc dep_cc ld ln_s host_ld windres
4244
4245 probe_cc as "$as"
4246 asflags_filter=$_flags_filter
4247 add_asflags $_flags $_cflags
4248 set_ccvars AS
4249
4250 probe_cc objcc "$objcc"
4251 objcflags_filter=$_flags_filter
4252 add_objcflags $_flags $_cflags
4253 set_ccvars OBJC
4254
4255 probe_cc ld "$ld"
4256 ldflags_filter=$_flags_filter
4257 add_ldflags $_flags $_ldflags
4258 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4259 LD_O=${_ld_o-$LD_O}
4260 LD_LIB=${_ld_lib-$LD_LIB}
4261 LD_PATH=${_ld_path-$LD_PATH}
4262
4263 probe_cc hostld "$host_ld"
4264 host_ldflags_filter=$_flags_filter
4265 add_host_ldflags $_flags $_ldflags
4266 HOSTLD_O=${_ld_o-$HOSTLD_O}
4267
4268 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4269     probe_cc depcc "$dep_cc"
4270     CCDEP=${_DEPCMD:-$DEPCMD}
4271     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4272     DEPCCFLAGS=$_flags
4273 fi
4274
4275 if $ar 2>&1 | grep -q Microsoft; then
4276     arflags="-nologo"
4277     ar_o='-out:$@'
4278 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4279     arflags="rq"
4280     ar_o='$@'
4281 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4282     arflags='-Xany -r -c'
4283     ar_o='$@'
4284 elif $ar 2>&1 | grep -q "\[D\] "; then
4285     arflags="rcD"
4286     ar_o='$@'
4287 else
4288     arflags="rc"
4289     ar_o='$@'
4290 fi
4291
4292 add_cflags $extra_cflags
4293 add_cxxflags $extra_cxxflags
4294 add_objcflags $extra_objcflags
4295 add_asflags $extra_cflags
4296
4297 if test -n "$sysroot"; then
4298     case "$cc_type" in
4299         gcc|llvm_gcc|clang)
4300             add_cppflags --sysroot="$sysroot"
4301             add_ldflags --sysroot="$sysroot"
4302 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4303             add_cppflags -isysroot "$sysroot"
4304             add_ldflags -isysroot "$sysroot"
4305         ;;
4306         tms470)
4307             add_cppflags -I"$sysinclude"
4308             add_ldflags  --sysroot="$sysroot"
4309         ;;
4310     esac
4311 fi
4312
4313 if test "$cpu" = host; then
4314     enabled cross_compile &&
4315         die "--cpu=host makes no sense when cross-compiling."
4316
4317     case "$cc_type" in
4318         gcc|llvm_gcc)
4319             check_native(){
4320                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4321                 sed -n "/cc1.*$1=/{
4322                             s/.*$1=\\([^ ]*\\).*/\\1/
4323                             p
4324                             q
4325                         }" $TMPE
4326             }
4327             cpu=$(check_native -march || check_native -mcpu)
4328         ;;
4329         clang)
4330             check_native(){
4331                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4332                 sed -n "/cc1.*-target-cpu /{
4333                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4334                             p
4335                             q
4336                         }" $TMPE
4337             }
4338             cpu=$(check_native -march)
4339         ;;
4340     esac
4341
4342     test "${cpu:-host}" = host &&
4343         die "--cpu=host not supported with compiler $cc"
4344 fi
4345
4346 # Deal with common $arch aliases
4347 case "$arch" in
4348     aarch64|arm64)
4349         arch="aarch64"
4350     ;;
4351     arm*|iPad*|iPhone*)
4352         arch="arm"
4353     ;;
4354     mips*|IP*)
4355         case "$arch" in
4356         *el)
4357             add_cppflags -EL
4358             add_ldflags -EL
4359         ;;
4360         *eb)
4361             add_cppflags -EB
4362             add_ldflags -EB
4363         ;;
4364         esac
4365         arch="mips"
4366     ;;
4367     parisc*|hppa*)
4368         arch="parisc"
4369     ;;
4370     "Power Macintosh"|ppc*|powerpc*)
4371         arch="ppc"
4372     ;;
4373     s390|s390x)
4374         arch="s390"
4375     ;;
4376     sh4|sh)
4377         arch="sh4"
4378     ;;
4379     sun4*|sparc*)
4380         arch="sparc"
4381     ;;
4382     tilegx|tile-gx)
4383         arch="tilegx"
4384     ;;
4385     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4386         arch="x86"
4387     ;;
4388 esac
4389
4390 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4391 enable $arch
4392
4393 # Add processor-specific flags
4394 if enabled aarch64; then
4395
4396     case $cpu in
4397         armv*)
4398             cpuflags="-march=$cpu"
4399         ;;
4400         *)
4401             cpuflags="-mcpu=$cpu"
4402         ;;
4403     esac
4404
4405 elif enabled alpha; then
4406
4407     cpuflags="-mcpu=$cpu"
4408
4409 elif enabled arm; then
4410
4411     check_arm_arch() {
4412         check_cpp_condition stddef.h \
4413             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4414             $cpuflags
4415     }
4416
4417     probe_arm_arch() {
4418         if   check_arm_arch 4;        then echo armv4
4419         elif check_arm_arch 4T;       then echo armv4t
4420         elif check_arm_arch 5;        then echo armv5
4421         elif check_arm_arch 5E;       then echo armv5e
4422         elif check_arm_arch 5T;       then echo armv5t
4423         elif check_arm_arch 5TE;      then echo armv5te
4424         elif check_arm_arch 5TEJ;     then echo armv5te
4425         elif check_arm_arch 6;        then echo armv6
4426         elif check_arm_arch 6J;       then echo armv6j
4427         elif check_arm_arch 6K;       then echo armv6k
4428         elif check_arm_arch 6Z;       then echo armv6z
4429         elif check_arm_arch 6ZK;      then echo armv6zk
4430         elif check_arm_arch 6T2;      then echo armv6t2
4431         elif check_arm_arch 7;        then echo armv7
4432         elif check_arm_arch 7A  7_A;  then echo armv7-a
4433         elif check_arm_arch 7S;       then echo armv7-a
4434         elif check_arm_arch 7R  7_R;  then echo armv7-r
4435         elif check_arm_arch 7M  7_M;  then echo armv7-m
4436         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4437         elif check_arm_arch 8A  8_A;  then echo armv8-a
4438         fi
4439     }
4440
4441     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4442
4443     case $cpu in
4444         armv*)
4445             cpuflags="-march=$cpu"
4446             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4447         ;;
4448         *)
4449             cpuflags="-mcpu=$cpu"
4450             case $cpu in
4451                 cortex-a*)                               subarch=armv7a  ;;
4452                 cortex-r*)                               subarch=armv7r  ;;
4453                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4454                 arm11*)                                  subarch=armv6   ;;
4455                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4456                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4457                 *)                             subarch=$(probe_arm_arch) ;;
4458             esac
4459         ;;
4460     esac
4461
4462     case "$subarch" in
4463         armv5t*)    enable fast_clz                ;;
4464         armv[6-8]*)
4465             enable fast_clz
4466             disabled fast_unaligned || enable fast_unaligned
4467             ;;
4468     esac
4469
4470 elif enabled avr32; then
4471
4472     case $cpu in
4473         ap7[02]0[0-2])
4474             subarch="avr32_ap"
4475             cpuflags="-mpart=$cpu"
4476         ;;
4477         ap)
4478             subarch="avr32_ap"
4479             cpuflags="-march=$cpu"
4480         ;;
4481         uc3[ab]*)
4482             subarch="avr32_uc"
4483             cpuflags="-mcpu=$cpu"
4484         ;;
4485         uc)
4486             subarch="avr32_uc"
4487             cpuflags="-march=$cpu"
4488         ;;
4489     esac
4490
4491 elif enabled bfin; then
4492
4493     cpuflags="-mcpu=$cpu"
4494
4495 elif enabled mips; then
4496
4497     cpuflags="-march=$cpu"
4498
4499     if [ "$cpu" != "generic" ]; then
4500         disable mips32r2
4501         disable mips32r5
4502         disable mips64r2
4503         disable mips32r6
4504         disable mips64r6
4505         disable loongson2
4506         disable loongson3
4507
4508         case $cpu in
4509             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4510                 enable mips32r2
4511                 disable msa
4512             ;;
4513             p5600|i6400|p6600)
4514                 disable mipsdsp
4515                 disable mipsdspr2
4516             ;;
4517             loongson*)
4518                 enable loongson2
4519                 enable loongson3
4520                 enable local_aligned_8 local_aligned_16 local_aligned_32
4521                 enable simd_align_16
4522                 enable fast_64bit
4523                 enable fast_clz
4524                 enable fast_cmov
4525                 enable fast_unaligned
4526                 disable aligned_stack
4527                 disable mipsfpu
4528                 disable mipsdsp
4529                 disable mipsdspr2
4530                 case $cpu in
4531                     loongson3*)
4532                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4533                     ;;
4534                     loongson2e)
4535                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4536                     ;;
4537                     loongson2f)
4538                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4539                     ;;
4540                 esac
4541             ;;
4542             *)
4543                 # Unknown CPU. Disable everything.
4544                 warn "unknown CPU. Disabling all MIPS optimizations."
4545                 disable mipsfpu
4546                 disable mipsdsp
4547                 disable mipsdspr2
4548                 disable msa
4549                 disable mmi
4550             ;;
4551         esac
4552
4553         case $cpu in
4554             24kc)
4555                 disable mipsfpu
4556                 disable mipsdsp
4557                 disable mipsdspr2
4558             ;;
4559             24kf*)
4560                 disable mipsdsp
4561                 disable mipsdspr2
4562             ;;
4563             24kec|34kc|1004kc)
4564                 disable mipsfpu
4565                 disable mipsdspr2
4566             ;;
4567             24kef*|34kf*|1004kf*)
4568                 disable mipsdspr2
4569             ;;
4570             74kc)
4571                 disable mipsfpu
4572             ;;
4573             p5600)
4574                 enable mips32r5
4575                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4576             ;;
4577             i6400)
4578                 enable mips64r6
4579                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4580             ;;
4581             p6600)
4582                 enable mips64r6
4583                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4584             ;;
4585         esac
4586     else
4587         # We do not disable anything. Is up to the user to disable the unwanted features.
4588         warn 'generic cpu selected'
4589     fi
4590
4591 elif enabled ppc; then
4592
4593     disable ldbrx
4594
4595     case $(tolower $cpu) in
4596         601|ppc601|powerpc601)
4597             cpuflags="-mcpu=601"
4598             disable altivec
4599         ;;
4600         603*|ppc603*|powerpc603*)
4601             cpuflags="-mcpu=603"
4602             disable altivec
4603         ;;
4604         604*|ppc604*|powerpc604*)
4605             cpuflags="-mcpu=604"
4606             disable altivec
4607         ;;
4608         g3|75*|ppc75*|powerpc75*)
4609             cpuflags="-mcpu=750"
4610             disable altivec
4611         ;;
4612         g4|745*|ppc745*|powerpc745*)
4613             cpuflags="-mcpu=7450"
4614             disable vsx
4615         ;;
4616         74*|ppc74*|powerpc74*)
4617             cpuflags="-mcpu=7400"
4618             disable vsx
4619         ;;
4620         g5|970|ppc970|powerpc970)
4621             cpuflags="-mcpu=970"
4622             disable vsx
4623         ;;
4624         power[3-6]*)
4625             cpuflags="-mcpu=$cpu"
4626             disable vsx
4627         ;;
4628         power[7-8]*)
4629             cpuflags="-mcpu=$cpu"
4630         ;;
4631         cell)
4632             cpuflags="-mcpu=cell"
4633             enable ldbrx
4634             disable vsx
4635         ;;
4636         e500mc)
4637             cpuflags="-mcpu=e500mc"
4638             disable altivec
4639         ;;
4640         e500v2)
4641             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4642             disable altivec
4643             disable dcbzl
4644         ;;
4645         e500)
4646             cpuflags="-mcpu=8540 -mhard-float"
4647             disable altivec
4648             disable dcbzl
4649         ;;
4650     esac
4651
4652 elif enabled sparc; then
4653
4654     case $cpu in
4655         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4656             cpuflags="-mcpu=$cpu"
4657         ;;
4658         ultrasparc*|niagara[234])
4659             cpuflags="-mcpu=$cpu"
4660         ;;
4661     esac
4662
4663 elif enabled x86; then
4664
4665     case $cpu in
4666         i[345]86|pentium)
4667             cpuflags="-march=$cpu"
4668             disable i686
4669             disable mmx
4670         ;;
4671         # targets that do NOT support nopl and conditional mov (cmov)
4672         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4673             cpuflags="-march=$cpu"
4674             disable i686
4675         ;;
4676         # targets that do support nopl and conditional mov (cmov)
4677         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4678         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4679         |amdfam10|barcelona|b[dt]ver*|znver*)
4680             cpuflags="-march=$cpu"
4681             enable i686
4682             enable fast_cmov
4683         ;;
4684         # targets that do support conditional mov but on which it's slow
4685         pentium4|pentium4m|prescott|nocona)
4686             cpuflags="-march=$cpu"
4687             enable i686
4688             disable fast_cmov
4689         ;;
4690     esac
4691
4692 fi
4693
4694 if [ "$cpu" != generic ]; then
4695     add_cflags  $cpuflags
4696     add_asflags $cpuflags
4697     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4698 fi
4699
4700 # compiler sanity check
4701 check_exec <<EOF
4702 int main(void){ return 0; }
4703 EOF
4704 if test "$?" != 0; then
4705     echo "$cc is unable to create an executable file."
4706     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4707         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4708         echo "Only do this if you know what cross compiling means."
4709     fi
4710     die "C compiler test failed."
4711 fi
4712
4713 add_cppflags -D_ISOC99_SOURCE
4714 add_cxxflags -D__STDC_CONSTANT_MACROS
4715 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4716
4717 # some compilers silently accept -std=c11, so we also need to check that the
4718 # version macro is defined properly
4719 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4720     add_cflags -std=c11
4721 else
4722     check_cflags -std=c99
4723 fi
4724
4725 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4726 #include <stdlib.h>
4727 EOF
4728 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4729 #include <stdlib.h>
4730 EOF
4731
4732 add_host_cppflags -D_ISOC99_SOURCE
4733 check_host_cflags -std=c99
4734 check_host_cflags -Wall
4735 check_host_cflags $host_cflags_speed
4736
4737 check_64bit(){
4738     arch32=$1
4739     arch64=$2
4740     expr=$3
4741     check_code cc "" "int test[2*($expr) - 1]" &&
4742         subarch=$arch64 || subarch=$arch32
4743 }
4744
4745 case "$arch" in
4746     aarch64|alpha|ia64)
4747         spic=$shared
4748     ;;
4749     mips)
4750         check_64bit mips mips64 '_MIPS_SIM > 1'
4751         spic=$shared
4752     ;;
4753     parisc)
4754         check_64bit parisc parisc64 'sizeof(void *) > 4'
4755         spic=$shared
4756     ;;
4757     ppc)
4758         check_64bit ppc ppc64 'sizeof(void *) > 4'
4759         spic=$shared
4760     ;;
4761     s390)
4762         check_64bit s390 s390x 'sizeof(void *) > 4'
4763         spic=$shared
4764     ;;
4765     sparc)
4766         check_64bit sparc sparc64 'sizeof(void *) > 4'
4767         spic=$shared
4768     ;;
4769     x86)
4770         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4771         # Treat x32 as x64 for now. Note it also needs spic=$shared
4772         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4773             subarch=x86_64
4774         if test "$subarch" = "x86_64"; then
4775             spic=$shared
4776         fi
4777     ;;
4778     ppc)
4779         check_cc <<EOF && subarch="ppc64"
4780         int test[(int)sizeof(char*) - 7];
4781 EOF
4782     ;;
4783 esac
4784
4785 enable $subarch
4786 enabled spic && enable_weak pic
4787
4788 # OS specific
4789 case $target_os in
4790     aix)
4791         SHFLAGS=-shared
4792         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4793         enabled shared && add_ldflags -Wl,-brtl
4794         ;;
4795     android)
4796         disable symver
4797         enable section_data_rel_ro
4798         SLIB_INSTALL_NAME='$(SLIBNAME)'
4799         SLIB_INSTALL_LINKS=
4800         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4801         ;;
4802     haiku)
4803         prefix_default="/boot/common"
4804         network_extralibs="-lnetwork"
4805         host_extralibs=
4806         ;;
4807     sunos)
4808         SHFLAGS='-shared -Wl,-h,$$(@F)'
4809         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4810         network_extralibs="-lsocket -lnsl"
4811         add_cppflags -D__EXTENSIONS__
4812         # When using suncc to build, the Solaris linker will mark
4813         # an executable with each instruction set encountered by
4814         # the Solaris assembler.  As our libraries contain their own
4815         # guards for processor-specific code, instead suppress
4816         # generation of the HWCAPS ELF section on Solaris x86 only.
4817         enabled_all suncc x86 &&
4818             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4819             add_ldflags -Wl,-M,mapfile
4820         nm_default='nm -P -g'
4821         version_script='-M'
4822         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4823         ;;
4824     netbsd)
4825         disable symver
4826         oss_indev_extralibs="-lossaudio"
4827         oss_outdev_extralibs="-lossaudio"
4828         enabled gcc || check_ldflags -Wl,-zmuldefs
4829         ;;
4830     openbsd|bitrig)
4831         disable symver
4832         SHFLAGS='-shared'
4833         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4834         SLIB_INSTALL_LINKS=
4835         oss_indev_extralibs="-lossaudio"
4836         oss_outdev_extralibs="-lossaudio"
4837         ;;
4838     dragonfly)
4839         disable symver
4840         ;;
4841     freebsd)
4842         ;;
4843     bsd/os)
4844         add_extralibs -lpoll -lgnugetopt
4845         strip="strip -d"
4846         ;;
4847     darwin)
4848         enabled ppc && add_asflags -force_cpusubtype_ALL
4849         install_name_dir_default='$(SHLIBDIR)'
4850         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4851         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4852         strip="${strip} -x"
4853         add_ldflags -Wl,-dynamic,-search_paths_first
4854         SLIBSUF=".dylib"
4855         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4856         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4857         objformat="macho"
4858         enabled x86_64 && objformat="macho64"
4859         enabled_any pic shared x86_64 ||
4860             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4861         check_header dispatch/dispatch.h &&
4862             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4863         version_script='-exported_symbols_list'
4864         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4865         ;;
4866     msys*)
<