Merge commit 'f8f7ad758d0e1f36915467567f4d75541d98c12f'
[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   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --enable-avisynth        enable reading of AviSynth script files [no]
205   --disable-bzlib          disable bzlib [autodetect]
206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
207   --enable-frei0r          enable frei0r video filtering [no]
208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
209                            if openssl, librtmp or gmp is not used [no]
210   --enable-gmp             enable gmp, needed for rtmp(t)e support
211                            if openssl or librtmp is not used [no]
212   --enable-gnutls          enable gnutls, needed for https support
213                            if openssl is not used [no]
214   --disable-iconv          disable iconv [autodetect]
215   --enable-jni             enable JNI support [no]
216   --enable-ladspa          enable LADSPA audio filtering [no]
217   --enable-libass          enable libass subtitles rendering,
218                            needed for subtitles and ass filter [no]
219   --enable-libbluray       enable BluRay reading using libbluray [no]
220   --enable-libbs2b         enable bs2b DSP library [no]
221   --enable-libcaca         enable textual display using libcaca [no]
222   --enable-libcelt         enable CELT decoding via libcelt [no]
223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
225                            and libraw1394 [no]
226   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
227   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
228   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
229   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
230   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
231   --enable-libgme          enable Game Music Emu via libgme [no]
232   --enable-libgsm          enable GSM de/encoding via libgsm [no]
233   --enable-libiec61883     enable iec61883 via libiec61883 [no]
234   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
235   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
236   --enable-libmodplug      enable ModPlug via libmodplug [no]
237   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
238   --enable-libnut          enable NUT (de)muxing via libnut,
239                            native (de)muxer exists [no]
240   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
241   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
242   --enable-libopencv       enable video filtering via libopencv [no]
243   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
244   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
245   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
246   --enable-libopus         enable Opus de/encoding via libopus [no]
247   --enable-libpulse        enable Pulseaudio input via libpulse [no]
248   --enable-librsvg         enable SVG rasterization via librsvg [no]
249   --enable-librubberband   enable rubberband needed for rubberband filter [no]
250   --enable-librtmp         enable RTMP[E] support via librtmp [no]
251   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
252   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
253   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
254   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
255   --enable-libsoxr         enable Include libsoxr resampling [no]
256   --enable-libspeex        enable Speex de/encoding via libspeex [no]
257   --enable-libssh          enable SFTP protocol via libssh [no]
258   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
259   --enable-libtheora       enable Theora encoding via libtheora [no]
260   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
261   --enable-libv4l2         enable libv4l2/v4l-utils [no]
262   --enable-libvidstab      enable video stabilization using vid.stab [no]
263   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
264   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
265                            native implementation exists [no]
266   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
267   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
268   --enable-libwebp         enable WebP encoding via libwebp [no]
269   --enable-libx264         enable H.264 encoding via x264 [no]
270   --enable-libx265         enable HEVC encoding via x265 [no]
271   --enable-libxavs         enable AVS encoding via xavs [no]
272   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
273   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
274   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
275   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
276   --enable-libxvid         enable Xvid encoding via xvidcore,
277                            native MPEG-4/Xvid encoder exists [no]
278   --enable-libzimg         enable z.lib, needed for zscale filter [no]
279   --enable-libzmq          enable message passing via libzmq [no]
280   --enable-libzvbi         enable teletext support via libzvbi [no]
281   --disable-lzma           disable lzma [autodetect]
282   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
283   --enable-mediacodec      enable Android MediaCodec support [no]
284   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
285   --enable-openal          enable OpenAL 1.1 capture support [no]
286   --enable-opencl          enable OpenCL code
287   --enable-opengl          enable OpenGL rendering [no]
288   --enable-openssl         enable openssl, needed for https support
289                            if gnutls is not used [no]
290   --disable-schannel       disable SChannel SSP, needed for TLS support on
291                            Windows if openssl and gnutls are not used [autodetect]
292   --disable-sdl2           disable sdl2 [autodetect]
293   --disable-securetransport disable Secure Transport, needed for TLS support
294                            on OSX if openssl and gnutls are not used [autodetect]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298   The following libraries provide various hardware acceleration features:
299   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
300   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
301   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
302   --disable-cuvid          disable Nvidia CUVID support [autodetect]
303   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
304   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
305   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
306   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
307   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
308   --disable-nvenc          disable Nvidia video encoding code [autodetect]
309   --enable-omx             enable OpenMAX IL code [no]
310   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
311   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
312   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
313   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
314   --disable-videotoolbox   disable VideoToolbox code [autodetect]
315
316 Toolchain options:
317   --arch=ARCH              select architecture [$arch]
318   --cpu=CPU                select the minimum required CPU (affects
319                            instruction selection, may crash on older CPUs)
320   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
321   --progs-suffix=SUFFIX    program name suffix []
322   --enable-cross-compile   assume a cross-compiler is used
323   --sysroot=PATH           root of cross-build tree
324   --sysinclude=PATH        location of cross-build system headers
325   --target-os=OS           compiler targets OS [$target_os]
326   --target-exec=CMD        command to run executables on target
327   --target-path=DIR        path to view of build directory on target
328   --target-samples=DIR     path to samples directory on target
329   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
330   --toolchain=NAME         set tool defaults according to NAME
331   --nm=NM                  use nm tool NM [$nm_default]
332   --ar=AR                  use archive tool AR [$ar_default]
333   --as=AS                  use assembler AS [$as_default]
334   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
335   --strip=STRIP            use strip tool STRIP [$strip_default]
336   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
337   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
338   --cc=CC                  use C compiler CC [$cc_default]
339   --cxx=CXX                use C compiler CXX [$cxx_default]
340   --objcc=OCC              use ObjC compiler OCC [$cc_default]
341   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
342   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
343   --ld=LD                  use linker LD [$ld_default]
344   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
345   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
346   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
347   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
348   --host-cc=HOSTCC         use host C compiler HOSTCC
349   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
350   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
351   --host-ld=HOSTLD         use host linker HOSTLD
352   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
353   --host-libs=HLIBS        use libs HLIBS when linking for host
354   --host-os=OS             compiler host OS [$target_os]
355   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
356   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
357   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
358   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
359   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
360   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
361   --extra-libs=ELIBS       add ELIBS [$ELIBS]
362   --extra-version=STRING   version string suffix []
363   --optflags=OPTFLAGS      override optimization-related compiler flags
364   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
365   --build-suffix=SUFFIX    library name suffix []
366   --enable-pic             build position-independent code
367   --enable-thumb           compile for Thumb instruction set
368   --enable-lto             use link-time optimization
369   --env="ENV=override"     override the environment variables
370
371 Advanced options (experts only):
372   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
373   --custom-allocator=NAME  use a supported custom allocator
374   --disable-symver         disable symbol versioning
375   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
376   --disable-safe-bitstream-reader
377                            disable buffer boundary checking in bitreaders
378                            (faster, but may crash)
379   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
380
381 Optimization options (experts only):
382   --disable-asm            disable all assembly optimizations
383   --disable-altivec        disable AltiVec optimizations
384   --disable-vsx            disable VSX optimizations
385   --disable-power8         disable POWER8 optimizations
386   --disable-amd3dnow       disable 3DNow! optimizations
387   --disable-amd3dnowext    disable 3DNow! extended optimizations
388   --disable-mmx            disable MMX optimizations
389   --disable-mmxext         disable MMXEXT optimizations
390   --disable-sse            disable SSE optimizations
391   --disable-sse2           disable SSE2 optimizations
392   --disable-sse3           disable SSE3 optimizations
393   --disable-ssse3          disable SSSE3 optimizations
394   --disable-sse4           disable SSE4 optimizations
395   --disable-sse42          disable SSE4.2 optimizations
396   --disable-avx            disable AVX optimizations
397   --disable-xop            disable XOP optimizations
398   --disable-fma3           disable FMA3 optimizations
399   --disable-fma4           disable FMA4 optimizations
400   --disable-avx2           disable AVX2 optimizations
401   --disable-aesni          disable AESNI optimizations
402   --disable-armv5te        disable armv5te optimizations
403   --disable-armv6          disable armv6 optimizations
404   --disable-armv6t2        disable armv6t2 optimizations
405   --disable-vfp            disable VFP optimizations
406   --disable-neon           disable NEON optimizations
407   --disable-inline-asm     disable use of inline assembly
408   --disable-yasm           disable use of nasm/yasm assembly
409   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
410   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
411   --disable-msa            disable MSA optimizations
412   --disable-mipsfpu        disable floating point MIPS optimizations
413   --disable-mmi            disable Loongson SIMD optimizations
414   --disable-fast-unaligned consider unaligned accesses slow
415
416 Developer options (useful when working on FFmpeg itself):
417   --disable-debug          disable debugging symbols
418   --enable-debug=LEVEL     set the debug level [$debuglevel]
419   --disable-optimizations  disable compiler optimizations
420   --enable-extra-warnings  enable more compiler warnings
421   --disable-stripping      disable stripping of executables and shared libraries
422   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
423                            2 causes a slowdown at runtime.
424   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
425   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
426                            leaks and errors, using the specified valgrind binary.
427                            Cannot be combined with --target-exec
428   --enable-ftrapv          Trap arithmetic overflows
429   --samples=PATH           location of test samples for FATE, if not set use
430                            \$FATE_SAMPLES at make invocation time.
431   --enable-neon-clobber-test check NEON registers for clobbering (should be
432                            used only for debugging purposes)
433   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
434                            should be used only for debugging purposes)
435   --enable-random          randomly enable/disable components
436   --disable-random
437   --enable-random=LIST     randomly enable/disable specific components or
438   --disable-random=LIST    component groups. LIST is a comma-separated list
439                            of NAME[:PROB] entries where NAME is a component
440                            (group) and PROB the probability associated with
441                            NAME (default 0.5).
442   --random-seed=VALUE      seed value for --enable/disable-random
443   --disable-valgrind-backtrace do not print a backtrace under Valgrind
444                            (only applies to --disable-optimizations builds)
445   --enable-osfuzz          Enable building fuzzer tool
446   --libfuzzer=PATH         path to libfuzzer
447   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
448                            in the name) of tests whose result is ignored
449
450 NOTE: Object files are built at the place where configure is launched.
451 EOF
452   exit 0
453 }
454
455 quotes='""'
456 if test -t 1 && which tput >/dev/null 2>&1; then
457     ncolors=$(tput colors)
458     if test -n "$ncolors" && test $ncolors -ge 8; then
459         bold_color=$(tput bold)
460         warn_color=$(tput setaf 3)
461         error_color=$(tput setaf 1)
462         reset_color=$(tput sgr0)
463     fi
464     # 72 used instead of 80 since that's the default of pr
465     ncols=$(tput cols)
466 fi
467 : ${ncols:=72}
468
469 log(){
470     echo "$@" >> $logfile
471 }
472
473 log_file(){
474     log BEGIN $1
475     pr -n -t $1 >> $logfile
476     log END $1
477 }
478
479 warn(){
480     log "WARNING: $*"
481     WARNINGS="${WARNINGS}WARNING: $*\n"
482 }
483
484 die(){
485     log "$@"
486     echo "$error_color$bold_color$@$reset_color"
487     cat <<EOF
488
489 If you think configure made a mistake, make sure you are using the latest
490 version from Git.  If the latest version fails, report the problem to the
491 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
492 EOF
493     if disabled logging; then
494         cat <<EOF
495 Rerun configure with logging enabled (do not use --disable-logging), and
496 include the log this produces with your report.
497 EOF
498     else
499         cat <<EOF
500 Include the log file "$logfile" produced by configure as this will help
501 solve the problem.
502 EOF
503     fi
504     exit 1
505 }
506
507 # Avoid locale weirdness, besides we really just want to translate ASCII.
508 toupper(){
509     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
510 }
511
512 tolower(){
513     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
514 }
515
516 c_escape(){
517     echo "$*" | sed 's/["\\]/\\\0/g'
518 }
519
520 sh_quote(){
521     v=$(echo "$1" | sed "s/'/'\\\\''/g")
522     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
523     echo "$v"
524 }
525
526 cleanws(){
527     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
528 }
529
530 filter(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) printf '%s ' $v ;; esac"
535     done
536 }
537
538 filter_out(){
539     pat=$1
540     shift
541     for v; do
542         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
543     done
544 }
545
546 map(){
547     m=$1
548     shift
549     for v; do eval $m; done
550 }
551
552 add_suffix(){
553     suffix=$1
554     shift
555     for v; do echo ${v}${suffix}; done
556 }
557
558 set_all(){
559     value=$1
560     shift
561     for var in $*; do
562         eval $var=$value
563     done
564 }
565
566 set_weak(){
567     value=$1
568     shift
569     for var; do
570         eval : \${$var:=$value}
571     done
572 }
573
574 sanitize_var_name(){
575     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
576 }
577
578 set_safe(){
579     var=$1
580     shift
581     eval $(sanitize_var_name "$var")='$*'
582 }
583
584 get_safe(){
585     eval echo \$$(sanitize_var_name "$1")
586 }
587
588 pushvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:=0}
591         eval ${pvar}_${level}="\$$pvar"
592         eval ${pvar}_level=$(($level+1))
593     done
594 }
595
596 popvar(){
597     for pvar in $*; do
598         eval level=\${${pvar}_level:-0}
599         test $level = 0 && continue
600         eval level=$(($level-1))
601         eval $pvar="\${${pvar}_${level}}"
602         eval ${pvar}_level=$level
603         eval unset ${pvar}_${level}
604     done
605 }
606
607 request(){
608     for var in $*; do
609         eval ${var}_requested=yes
610         eval $var=
611     done
612 }
613
614 enable(){
615     set_all yes $*
616 }
617
618 disable(){
619     set_all no $*
620 }
621
622 enable_weak(){
623     set_weak yes $*
624 }
625
626 disable_weak(){
627     set_weak no $*
628 }
629
630 enable_safe(){
631     for var; do
632         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
633     done
634 }
635
636 disable_safe(){
637     for var; do
638         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
639     done
640 }
641
642 do_enable_deep(){
643     for var; do
644         enabled $var && continue
645         eval sel="\$${var}_select"
646         eval sgs="\$${var}_suggest"
647         pushvar var sgs
648         enable_deep $sel
649         popvar sgs
650         enable_deep_weak $sgs
651         popvar var
652     done
653 }
654
655 enable_deep(){
656     do_enable_deep $*
657     enable $*
658 }
659
660 enable_deep_weak(){
661     for var; do
662         disabled $var && continue
663         pushvar var
664         do_enable_deep $var
665         popvar var
666         enable_weak $var
667     done
668 }
669
670 requested(){
671     test "${1#!}" = "$1" && op='=' || op=!=
672     eval test "x\$${1#!}_requested" $op "xyes"
673 }
674
675 enabled(){
676     test "${1#!}" = "$1" && op='=' || op=!=
677     eval test "x\$${1#!}" $op "xyes"
678 }
679
680 disabled(){
681     test "${1#!}" = "$1" && op='=' || op=!=
682     eval test "x\$${1#!}" $op "xno"
683 }
684
685 enabled_all(){
686     for opt; do
687         enabled $opt || return 1
688     done
689 }
690
691 disabled_all(){
692     for opt; do
693         disabled $opt || return 1
694     done
695 }
696
697 enabled_any(){
698     for opt; do
699         enabled $opt && return 0
700     done
701 }
702
703 disabled_any(){
704     for opt; do
705         disabled $opt && return 0
706     done
707     return 1
708 }
709
710 set_default(){
711     for opt; do
712         eval : \${$opt:=\$${opt}_default}
713     done
714 }
715
716 is_in(){
717     value=$1
718     shift
719     for var in $*; do
720         [ $var = $value ] && return 0
721     done
722     return 1
723 }
724
725 do_check_deps(){
726     for cfg; do
727         cfg="${cfg#!}"
728         enabled ${cfg}_checking && die "Circular dependency for $cfg."
729         disabled ${cfg}_checking && continue
730         enable ${cfg}_checking
731         append allopts $cfg
732
733         eval dep_all="\$${cfg}_deps"
734         eval dep_any="\$${cfg}_deps_any"
735         eval dep_sel="\$${cfg}_select"
736         eval dep_sgs="\$${cfg}_suggest"
737         eval dep_ifa="\$${cfg}_if"
738         eval dep_ifn="\$${cfg}_if_any"
739
740         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
741         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
742         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
743
744         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
745         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
746         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
747         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
748         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
749
750         if enabled $cfg; then
751             enable_deep $dep_sel
752             enable_deep_weak $dep_sgs
753         fi
754
755         disable ${cfg}_checking
756     done
757 }
758
759 check_deps(){
760     unset allopts
761
762     do_check_deps "$@"
763
764     for cfg in $allopts; do
765         enabled $cfg || continue
766         eval dep_extralibs="\$${cfg}_extralibs"
767         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
768     done
769 }
770
771 print_config(){
772     pfx=$1
773     files=$2
774     shift 2
775     map 'eval echo "$v \${$v:-no}"' "$@" |
776     awk "BEGIN { split(\"$files\", files) }
777         {
778             c = \"$pfx\" toupper(\$1);
779             v = \$2;
780             sub(/yes/, 1, v);
781             sub(/no/,  0, v);
782             for (f in files) {
783                 file = files[f];
784                 if (file ~ /\\.h\$/) {
785                     printf(\"#define %s %d\\n\", c, v) >>file;
786                 } else if (file ~ /\\.asm\$/) {
787                     printf(\"%%define %s %d\\n\", c, v) >>file;
788                 } else if (file ~ /\\.mak\$/) {
789                     n = -v ? \"\" : \"!\";
790                     printf(\"%s%s=yes\\n\", n, c) >>file;
791                 } else if (file ~ /\\.texi\$/) {
792                     pre = -v ? \"\" : \"@c \";
793                     yesno = \$2;
794                     c2 = tolower(c);
795                     gsub(/_/, \"-\", c2);
796                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
797                 }
798             }
799         }"
800 }
801
802 print_enabled(){
803     suf=$1
804     shift
805     for v; do
806         enabled $v && printf "%s\n" ${v%$suf}
807     done
808 }
809
810 append(){
811     var=$1
812     shift
813     eval "$var=\"\$$var $*\""
814 }
815
816 prepend(){
817     var=$1
818     shift
819     eval "$var=\"$* \$$var\""
820 }
821
822 unique(){
823     var=$1
824     uniq_list=""
825     for tok in $(eval echo \$$var); do
826         uniq_list="$(filter_out $tok $uniq_list) $tok"
827     done
828     eval "$var=\"${uniq_list}\""
829 }
830
831 add_cppflags(){
832     append CPPFLAGS "$@"
833 }
834
835 add_cflags(){
836     append CFLAGS $($cflags_filter "$@")
837 }
838
839 add_cflags_headers(){
840     append CFLAGS_HEADERS $($cflags_filter "$@")
841 }
842
843 add_cxxflags(){
844     append CXXFLAGS $($cflags_filter "$@")
845 }
846
847 add_asflags(){
848     append ASFLAGS $($asflags_filter "$@")
849 }
850
851 add_objcflags(){
852     append OBJCFLAGS $($objcflags_filter "$@")
853 }
854
855 add_ldflags(){
856     append LDFLAGS $($ldflags_filter "$@")
857 }
858
859 add_ldexeflags(){
860     append LDEXEFLAGS $($ldflags_filter "$@")
861 }
862
863 add_ldlibflags(){
864     append LDLIBFLAGS $($ldflags_filter "$@")
865 }
866
867 add_stripflags(){
868     append ASMSTRIPFLAGS "$@"
869 }
870
871 add_extralibs(){
872     prepend extralibs $($ldflags_filter "$@")
873 }
874
875 add_host_cppflags(){
876     append host_cppflags "$@"
877 }
878
879 add_host_cflags(){
880     append host_cflags $($host_cflags_filter "$@")
881 }
882
883 add_host_ldflags(){
884     append host_ldflags $($host_ldflags_filter "$@")
885 }
886
887 add_compat(){
888     append compat_objs $1
889     shift
890     map 'add_cppflags -D$v' "$@"
891 }
892
893 check_cmd(){
894     log "$@"
895     "$@" >> $logfile 2>&1
896 }
897
898 check_stat(){
899     log check_stat "$@"
900     stat "$1" >> $logfile 2>&1
901 }
902
903 cc_o(){
904     eval printf '%s\\n' $CC_O
905 }
906
907 cc_e(){
908     eval printf '%s\\n' $CC_E
909 }
910
911 check_cc(){
912     log check_cc "$@"
913     cat > $TMPC
914     log_file $TMPC
915     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
916 }
917
918 check_cxx(){
919     log check_cxx "$@"
920     cat > $TMPCPP
921     log_file $TMPCPP
922     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
923 }
924
925 check_objcc(){
926     log check_objcc "$@"
927     cat > $TMPM
928     log_file $TMPM
929     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
930 }
931
932 check_cpp(){
933     log check_cpp "$@"
934     cat > $TMPC
935     log_file $TMPC
936     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
937 }
938
939 as_o(){
940     eval printf '%s\\n' $AS_O
941 }
942
943 check_as(){
944     log check_as "$@"
945     cat > $TMPS
946     log_file $TMPS
947     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
948 }
949
950 check_inline_asm(){
951     log check_inline_asm "$@"
952     name="$1"
953     code="$2"
954     shift 2
955     disable $name
956     check_cc "$@" <<EOF && enable $name
957 void foo(void){ __asm__ volatile($code); }
958 EOF
959 }
960
961 check_inline_asm_flags(){
962     log check_inline_asm_flags "$@"
963     name="$1"
964     code="$2"
965     flags=''
966     shift 2
967     while [ "$1" != "" ]; do
968       append flags $1
969       shift
970     done;
971     disable $name
972     cat > $TMPC <<EOF
973 void foo(void){ __asm__ volatile($code); }
974 EOF
975     log_file $TMPC
976     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
977     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
978 }
979
980 check_insn(){
981     log check_insn "$@"
982     check_inline_asm ${1}_inline "\"$2\""
983     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
984 }
985
986 check_yasm(){
987     log check_yasm "$@"
988     echo "$1" > $TMPS
989     log_file $TMPS
990     shift 1
991     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
992 }
993
994 ld_o(){
995     eval printf '%s\\n' $LD_O
996 }
997
998 check_ld(){
999     log check_ld "$@"
1000     type=$1
1001     shift 1
1002     flags=$(filter_out '-l*|*.so' $@)
1003     libs=$(filter '-l*|*.so' $@)
1004     check_$type $($cflags_filter $flags) || return
1005     flags=$($ldflags_filter $flags)
1006     libs=$($ldflags_filter $libs)
1007     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1008 }
1009
1010 print_include(){
1011     hdr=$1
1012     test "${hdr%.h}" = "${hdr}" &&
1013         echo "#include $hdr"    ||
1014         echo "#include <$hdr>"
1015 }
1016
1017 check_code(){
1018     log check_code "$@"
1019     check=$1
1020     headers=$2
1021     code=$3
1022     shift 3
1023     {
1024         for hdr in $headers; do
1025             print_include $hdr
1026         done
1027         echo "int main(void) { $code; return 0; }"
1028     } | check_$check "$@"
1029 }
1030
1031 check_cppflags(){
1032     log check_cppflags "$@"
1033     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1034 int x;
1035 EOF
1036 }
1037
1038 test_cflags(){
1039     log test_cflags "$@"
1040     set -- $($cflags_filter "$@")
1041     check_cc "$@" <<EOF
1042 int x;
1043 EOF
1044 }
1045
1046 check_cflags(){
1047     log check_cflags "$@"
1048     test_cflags "$@" && add_cflags "$@"
1049 }
1050
1051 check_cxxflags(){
1052     log check_cxxflags "$@"
1053     set -- $($cflags_filter "$@")
1054     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1055 int x;
1056 EOF
1057 }
1058
1059 test_objcflags(){
1060     log test_objcflags "$@"
1061     set -- $($objcflags_filter "$@")
1062     check_objcc "$@" <<EOF
1063 int x;
1064 EOF
1065 }
1066
1067 check_objcflags(){
1068     log check_objcflags "$@"
1069     test_objcflags "$@" && add_objcflags "$@"
1070 }
1071
1072 test_ldflags(){
1073     log test_ldflags "$@"
1074     check_ld "cc" "$@" <<EOF
1075 int main(void){ return 0; }
1076 EOF
1077 }
1078
1079 check_ldflags(){
1080     log check_ldflags "$@"
1081     test_ldflags "$@" && add_ldflags "$@"
1082 }
1083
1084 test_stripflags(){
1085     log test_stripflags "$@"
1086     # call check_cc to get a fresh TMPO
1087     check_cc <<EOF
1088 int main(void) { return 0; }
1089 EOF
1090     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1091 }
1092
1093 check_stripflags(){
1094     log check_stripflags "$@"
1095     test_stripflags "$@" && add_stripflags "$@"
1096 }
1097
1098 check_header(){
1099     log check_header "$@"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     check_cpp "$@" <<EOF && enable_safe $header
1104 #include <$header>
1105 int x;
1106 EOF
1107 }
1108
1109 check_header_objcc(){
1110     log check_header_objcc "$@"
1111     rm -f -- "$TMPO"
1112     header=$1
1113     shift
1114     disable_safe $header
1115     {
1116        echo "#include <$header>"
1117        echo "int main(void) { return 0; }"
1118     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1119 }
1120
1121 check_func(){
1122     log check_func "$@"
1123     func=$1
1124     shift
1125     disable $func
1126     check_ld "cc" "$@" <<EOF && enable $func
1127 extern int $func();
1128 int main(void){ $func(); }
1129 EOF
1130 }
1131
1132 check_complexfunc(){
1133     log check_complexfunc "$@"
1134     func=$1
1135     narg=$2
1136     shift 2
1137     test $narg = 2 && args="f, g" || args="f * I"
1138     disable $func
1139     check_ld "cc" "$@" <<EOF && enable $func
1140 #include <complex.h>
1141 #include <math.h>
1142 float foo(complex float f, complex float g) { return $func($args); }
1143 int main(void){ return (int) foo; }
1144 EOF
1145 }
1146
1147 check_mathfunc(){
1148     log check_mathfunc "$@"
1149     func=$1
1150     narg=$2
1151     shift 2
1152     test $narg = 2 && args="f, g" || args="f"
1153     disable $func
1154     check_ld "cc" "$@" <<EOF && enable $func
1155 #include <math.h>
1156 float foo(float f, float g) { return $func($args); }
1157 int main(void){ return (int) foo; }
1158 EOF
1159 }
1160
1161 check_func_headers(){
1162     log check_func_headers "$@"
1163     headers=$1
1164     funcs=$2
1165     shift 2
1166     {
1167         for hdr in $headers; do
1168             print_include $hdr
1169         done
1170         echo "#include <stdint.h>"
1171         for func in $funcs; do
1172             echo "long check_$func(void) { return (long) $func; }"
1173         done
1174         echo "int main(void) { int ret = 0;"
1175         # LTO could optimize out the test functions without this
1176         for func in $funcs; do
1177             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1178         done
1179         echo "return ret; }"
1180     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1181 }
1182
1183 check_class_headers_cpp(){
1184     log check_class_headers_cpp "$@"
1185     headers=$1
1186     classes=$2
1187     shift 2
1188     {
1189         for hdr in $headers; do
1190             echo "#include <$hdr>"
1191         done
1192         echo "int main(void) { "
1193         i=1
1194         for class in $classes; do
1195             echo "$class obj$i;"
1196             i=$(expr $i + 1)
1197         done
1198         echo "return 0; }"
1199     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1200 }
1201
1202 check_cpp_condition(){
1203     log check_cpp_condition "$@"
1204     header=$1
1205     condition=$2
1206     shift 2
1207     check_cpp "$@" <<EOF
1208 #include <$header>
1209 #if !($condition)
1210 #error "unsatisfied condition: $condition"
1211 #endif
1212 EOF
1213 }
1214
1215 test_cflags_cc(){
1216     log test_cflags_cc "$@"
1217     flags=$1
1218     header=$2
1219     condition=$3
1220     shift 3
1221     set -- $($cflags_filter "$flags")
1222     check_cc "$@" <<EOF
1223 #include <$header>
1224 #if !($condition)
1225 #error "unsatisfied condition: $condition"
1226 #endif
1227 EOF
1228 }
1229
1230 check_lib(){
1231     log check_lib "$@"
1232     name="$1"
1233     headers="$2"
1234     funcs="$3"
1235     shift 3
1236     disable $name
1237     check_func_headers "$headers" "$funcs" "$@" &&
1238         enable $name && add_extralibs "$@"
1239 }
1240
1241 check_lib_cpp(){
1242     log check_lib_cpp "$@"
1243     headers="$1"
1244     classes="$2"
1245     shift 2
1246     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1247 }
1248
1249 check_pkg_config(){
1250     log check_pkg_config "$@"
1251     pkg_version="$1"
1252     pkg="${1%% *}"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1257     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1258     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1259     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1260         set_safe "${pkg}_cflags"    $pkg_cflags &&
1261         set_safe "${pkg}_extralibs" $pkg_libs
1262 }
1263
1264 check_exec(){
1265     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1266 }
1267
1268 check_exec_crash(){
1269     log check_exec_crash "$@"
1270     code=$(cat)
1271
1272     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1273     # are safe but may not be available everywhere.  Thus we use
1274     # raise(SIGTERM) instead.  The check is run in a subshell so we
1275     # can redirect the "Terminated" message from the shell.  SIGBUS
1276     # is not defined by standard C so it is used conditionally.
1277
1278     (check_exec "$@") >> $logfile 2>&1 <<EOF
1279 #include <signal.h>
1280 static void sighandler(int sig){
1281     raise(SIGTERM);
1282 }
1283 int foo(void){
1284     $code
1285 }
1286 int (*func_ptr)(void) = foo;
1287 int main(void){
1288     signal(SIGILL, sighandler);
1289     signal(SIGFPE, sighandler);
1290     signal(SIGSEGV, sighandler);
1291 #ifdef SIGBUS
1292     signal(SIGBUS, sighandler);
1293 #endif
1294     return func_ptr();
1295 }
1296 EOF
1297 }
1298
1299 check_type(){
1300     log check_type "$@"
1301     headers=$1
1302     type=$2
1303     shift 2
1304     disable_safe "$type"
1305     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1306 }
1307
1308 check_struct(){
1309     log check_struct "$@"
1310     headers=$1
1311     struct=$2
1312     member=$3
1313     shift 3
1314     disable_safe "${struct}_${member}"
1315     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1316         enable_safe "${struct}_${member}"
1317 }
1318
1319 check_builtin(){
1320     log check_builtin "$@"
1321     name=$1
1322     headers=$2
1323     builtin=$3
1324     shift 3
1325     disable "$name"
1326     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1327 }
1328
1329 check_compile_assert(){
1330     log check_compile_assert "$@"
1331     name=$1
1332     headers=$2
1333     condition=$3
1334     shift 3
1335     disable "$name"
1336     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1337 }
1338
1339 require(){
1340     log require "$@"
1341     name_version="$1"
1342     name="${1%% *}"
1343     headers="$2"
1344     func="$3"
1345     shift 3
1346     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1347 }
1348
1349 require_cpp(){
1350     name="$1"
1351     headers="$2"
1352     classes="$3"
1353     shift 3
1354     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1355 }
1356
1357 use_pkg_config(){
1358     log use_pkg_config "$@"
1359     pkg="$1"
1360     check_pkg_config "$@" || return 1
1361     add_cflags    $(get_safe "${pkg}_cflags")
1362     add_extralibs $(get_safe "${pkg}_extralibs")
1363 }
1364
1365 require_pkg_config(){
1366     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1367 }
1368
1369 hostcc_e(){
1370     eval printf '%s\\n' $HOSTCC_E
1371 }
1372
1373 hostcc_o(){
1374     eval printf '%s\\n' $HOSTCC_O
1375 }
1376
1377 check_host_cc(){
1378     log check_host_cc "$@"
1379     cat > $TMPC
1380     log_file $TMPC
1381     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1382 }
1383
1384 check_host_cpp(){
1385     log check_host_cpp "$@"
1386     cat > $TMPC
1387     log_file $TMPC
1388     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1389 }
1390
1391 check_host_cppflags(){
1392     log check_host_cppflags "$@"
1393     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1394 int x;
1395 EOF
1396 }
1397
1398 check_host_cflags(){
1399     log check_host_cflags "$@"
1400     set -- $($host_cflags_filter "$@")
1401     check_host_cc "$@" <<EOF && append host_cflags "$@"
1402 int x;
1403 EOF
1404 }
1405
1406 check_host_cpp_condition(){
1407     log check_host_cpp_condition "$@"
1408     header=$1
1409     condition=$2
1410     shift 2
1411     check_host_cpp "$@" <<EOF
1412 #include <$header>
1413 #if !($condition)
1414 #error "unsatisfied condition: $condition"
1415 #endif
1416 EOF
1417 }
1418
1419 cp_if_changed(){
1420     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1421     mkdir -p "$(dirname $2)"
1422     cp -f "$1" "$2"
1423 }
1424
1425 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1426 # system-dependent things.
1427
1428 AVCODEC_COMPONENTS="
1429     bsfs
1430     decoders
1431     encoders
1432     hwaccels
1433     parsers
1434 "
1435
1436 AVDEVICE_COMPONENTS="
1437     indevs
1438     outdevs
1439 "
1440 AVFILTER_COMPONENTS="
1441     filters
1442 "
1443 AVFORMAT_COMPONENTS="
1444     demuxers
1445     muxers
1446     protocols
1447 "
1448
1449 AVRESAMPLE_COMPONENTS=""
1450 AVUTIL_COMPONENTS=""
1451
1452 COMPONENT_LIST="
1453     $AVCODEC_COMPONENTS
1454     $AVDEVICE_COMPONENTS
1455     $AVFILTER_COMPONENTS
1456     $AVFORMAT_COMPONENTS
1457     $AVRESAMPLE_COMPONENTS
1458     $AVUTIL_COMPONENTS
1459 "
1460
1461 EXAMPLE_LIST="
1462     avio_dir_cmd_example
1463     avio_reading_example
1464     decode_audio_example
1465     decode_video_example
1466     demuxing_decoding_example
1467     encode_audio_example
1468     encode_video_example
1469     extract_mvs_example
1470     filter_audio_example
1471     filtering_audio_example
1472     filtering_video_example
1473     http_multiclient_example
1474     metadata_example
1475     muxing_example
1476     qsvdec_example
1477     remuxing_example
1478     resampling_audio_example
1479     scaling_video_example
1480     transcode_aac_example
1481     transcoding_example
1482 "
1483 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1484     bzlib
1485     iconv
1486     libxcb
1487     libxcb_shm
1488     libxcb_shape
1489     libxcb_xfixes
1490     lzma
1491     schannel
1492     sdl
1493     sdl2
1494     securetransport
1495     xlib
1496     zlib
1497 "
1498
1499 EXTERNAL_LIBRARY_GPL_LIST="
1500     avisynth
1501     frei0r
1502     libcdio
1503     librubberband
1504     libvidstab
1505     libx264
1506     libx265
1507     libxavs
1508     libxvid
1509 "
1510
1511 EXTERNAL_LIBRARY_NONFREE_LIST="
1512     decklink
1513     libfdk_aac
1514     openssl
1515 "
1516
1517 EXTERNAL_LIBRARY_VERSION3_LIST="
1518     gmp
1519     libopencore_amrnb
1520     libopencore_amrwb
1521     libvo_amrwbenc
1522 "
1523
1524 EXTERNAL_LIBRARY_GPLV3_LIST="
1525     libsmbclient
1526 "
1527
1528 EXTERNAL_LIBRARY_LIST="
1529     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1530     $EXTERNAL_LIBRARY_GPL_LIST
1531     $EXTERNAL_LIBRARY_NONFREE_LIST
1532     $EXTERNAL_LIBRARY_VERSION3_LIST
1533     $EXTERNAL_LIBRARY_GPLV3_LIST
1534     chromaprint
1535     crystalhd
1536     gcrypt
1537     gnutls
1538     jni
1539     ladspa
1540     libass
1541     libbluray
1542     libbs2b
1543     libcaca
1544     libcelt
1545     libdc1394
1546     libflite
1547     libfontconfig
1548     libfreetype
1549     libfribidi
1550     libgme
1551     libgsm
1552     libiec61883
1553     libilbc
1554     libkvazaar
1555     libmodplug
1556     libmp3lame
1557     libnut
1558     libopencv
1559     libopenh264
1560     libopenjpeg
1561     libopenmpt
1562     libopus
1563     libpulse
1564     librsvg
1565     librtmp
1566     libschroedinger
1567     libshine
1568     libsmbclient
1569     libsnappy
1570     libsoxr
1571     libspeex
1572     libssh
1573     libtesseract
1574     libtheora
1575     libtwolame
1576     libv4l2
1577     libvorbis
1578     libvpx
1579     libwavpack
1580     libwebp
1581     libzimg
1582     libzmq
1583     libzvbi
1584     mediacodec
1585     netcdf
1586     openal
1587     opencl
1588     opengl
1589     videotoolbox
1590 "
1591 HWACCEL_AUTODETECT_LIBRARY_LIST="
1592     audiotoolbox
1593     cuda
1594     cuvid
1595     d3d11va
1596     dxva2
1597     nvenc
1598     vaapi
1599     vda
1600     vdpau
1601     videotoolbox_hwaccel
1602     xvmc
1603 "
1604
1605 HWACCEL_LIBRARY_NONFREE_LIST="
1606     cuda_sdk
1607     libnpp
1608 "
1609
1610 HWACCEL_LIBRARY_LIST="
1611     $HWACCEL_AUTODETECT_LIBRARY_LIST
1612     $HWACCEL_LIBRARY_NONFREE_LIST
1613     libmfx
1614     mmal
1615     omx
1616 "
1617
1618 DOCUMENT_LIST="
1619     doc
1620     htmlpages
1621     manpages
1622     podpages
1623     txtpages
1624 "
1625
1626 FEATURE_LIST="
1627     ftrapv
1628     gray
1629     hardcoded_tables
1630     omx_rpi
1631     runtime_cpudetect
1632     safe_bitstream_reader
1633     shared
1634     small
1635     static
1636     swscale_alpha
1637 "
1638
1639 LIBRARY_LIST="
1640     avcodec
1641     avdevice
1642     avfilter
1643     avformat
1644     avresample
1645     avutil
1646     postproc
1647     swresample
1648     swscale
1649 "
1650
1651 LICENSE_LIST="
1652     gpl
1653     nonfree
1654     version3
1655 "
1656
1657 PROGRAM_LIST="
1658     ffplay
1659     ffprobe
1660     ffserver
1661     ffmpeg
1662 "
1663
1664 SUBSYSTEM_LIST="
1665     dct
1666     dwt
1667     error_resilience
1668     faan
1669     fast_unaligned
1670     fft
1671     lsp
1672     lzo
1673     mdct
1674     pixelutils
1675     network
1676     rdft
1677 "
1678
1679 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1680 CONFIG_LIST="
1681     $DOCUMENT_LIST
1682     $EXAMPLE_LIST
1683     $EXTERNAL_LIBRARY_LIST
1684     $HWACCEL_LIBRARY_LIST
1685     $FEATURE_LIST
1686     $LICENSE_LIST
1687     $LIBRARY_LIST
1688     $PROGRAM_LIST
1689     $SUBSYSTEM_LIST
1690     fontconfig
1691     memory_poisoning
1692     neon_clobber_test
1693     ossfuzz
1694     pic
1695     raise_major
1696     thumb
1697     valgrind_backtrace
1698     xmm_clobber_test
1699     $COMPONENT_LIST
1700 "
1701
1702 THREADS_LIST="
1703     pthreads
1704     os2threads
1705     w32threads
1706 "
1707
1708 ATOMICS_LIST="
1709     atomics_gcc
1710     atomics_suncc
1711     atomics_win32
1712 "
1713
1714 AUTODETECT_LIBS="
1715     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1716     $HWACCEL_AUTODETECT_LIBRARY_LIST
1717     $THREADS_LIST
1718 "
1719
1720 ARCH_LIST="
1721     aarch64
1722     alpha
1723     arm
1724     avr32
1725     avr32_ap
1726     avr32_uc
1727     bfin
1728     ia64
1729     m68k
1730     mips
1731     mips64
1732     parisc
1733     ppc
1734     ppc64
1735     s390
1736     sh4
1737     sparc
1738     sparc64
1739     tilegx
1740     tilepro
1741     tomi
1742     x86
1743     x86_32
1744     x86_64
1745 "
1746
1747 ARCH_EXT_LIST_ARM="
1748     armv5te
1749     armv6
1750     armv6t2
1751     armv8
1752     neon
1753     vfp
1754     vfpv3
1755     setend
1756 "
1757
1758 ARCH_EXT_LIST_MIPS="
1759     mipsfpu
1760     mips32r2
1761     mips32r5
1762     mips64r2
1763     mips32r6
1764     mips64r6
1765     mipsdsp
1766     mipsdspr2
1767     msa
1768 "
1769
1770 ARCH_EXT_LIST_LOONGSON="
1771     loongson2
1772     loongson3
1773     mmi
1774 "
1775
1776 ARCH_EXT_LIST_X86_SIMD="
1777     aesni
1778     amd3dnow
1779     amd3dnowext
1780     avx
1781     avx2
1782     fma3
1783     fma4
1784     mmx
1785     mmxext
1786     sse
1787     sse2
1788     sse3
1789     sse4
1790     sse42
1791     ssse3
1792     xop
1793 "
1794
1795 ARCH_EXT_LIST_PPC="
1796     altivec
1797     dcbzl
1798     ldbrx
1799     power8
1800     ppc4xx
1801     vsx
1802 "
1803
1804 ARCH_EXT_LIST_X86="
1805     $ARCH_EXT_LIST_X86_SIMD
1806     cpunop
1807     i686
1808 "
1809
1810 ARCH_EXT_LIST="
1811     $ARCH_EXT_LIST_ARM
1812     $ARCH_EXT_LIST_PPC
1813     $ARCH_EXT_LIST_X86
1814     $ARCH_EXT_LIST_MIPS
1815     $ARCH_EXT_LIST_LOONGSON
1816 "
1817
1818 ARCH_FEATURES="
1819     aligned_stack
1820     fast_64bit
1821     fast_clz
1822     fast_cmov
1823     local_aligned_8
1824     local_aligned_16
1825     local_aligned_32
1826     simd_align_16
1827     simd_align_32
1828 "
1829
1830 BUILTIN_LIST="
1831     atomic_cas_ptr
1832     machine_rw_barrier
1833     MemoryBarrier
1834     mm_empty
1835     rdtsc
1836     sarestart
1837     sem_timedwait
1838     sync_val_compare_and_swap
1839 "
1840 HAVE_LIST_CMDLINE="
1841     inline_asm
1842     symver
1843     yasm
1844 "
1845
1846 HAVE_LIST_PUB="
1847     bigendian
1848     fast_unaligned
1849 "
1850
1851 HEADERS_LIST="
1852     alsa_asoundlib_h
1853     altivec_h
1854     arpa_inet_h
1855     asm_types_h
1856     cdio_paranoia_h
1857     cdio_paranoia_paranoia_h
1858     cuda_h
1859     d3d11_h
1860     dispatch_dispatch_h
1861     dev_bktr_ioctl_bt848_h
1862     dev_bktr_ioctl_meteor_h
1863     dev_ic_bt8xx_h
1864     dev_video_bktr_ioctl_bt848_h
1865     dev_video_meteor_ioctl_meteor_h
1866     direct_h
1867     dirent_h
1868     dlfcn_h
1869     dxva_h
1870     ES2_gl_h
1871     gsm_h
1872     io_h
1873     mach_mach_time_h
1874     machine_ioctl_bt848_h
1875     machine_ioctl_meteor_h
1876     malloc_h
1877     opencv2_core_core_c_h
1878     openjpeg_2_1_openjpeg_h
1879     openjpeg_2_0_openjpeg_h
1880     openjpeg_1_5_openjpeg_h
1881     OpenGL_gl3_h
1882     poll_h
1883     sndio_h
1884     soundcard_h
1885     stdatomic_h
1886     sys_mman_h
1887     sys_param_h
1888     sys_resource_h
1889     sys_select_h
1890     sys_soundcard_h
1891     sys_time_h
1892     sys_un_h
1893     sys_videoio_h
1894     termios_h
1895     udplite_h
1896     unistd_h
1897     valgrind_valgrind_h
1898     windows_h
1899     winsock2_h
1900 "
1901
1902 INTRINSICS_LIST="
1903     intrinsics_neon
1904 "
1905
1906 COMPLEX_FUNCS="
1907     cabs
1908     cexp
1909 "
1910
1911 MATH_FUNCS="
1912     atanf
1913     atan2f
1914     cbrt
1915     cbrtf
1916     copysign
1917     cosf
1918     erf
1919     exp2
1920     exp2f
1921     expf
1922     hypot
1923     isfinite
1924     isinf
1925     isnan
1926     ldexpf
1927     llrint
1928     llrintf
1929     log2
1930     log2f
1931     log10f
1932     lrint
1933     lrintf
1934     powf
1935     rint
1936     round
1937     roundf
1938     sinf
1939     trunc
1940     truncf
1941 "
1942
1943 SYSTEM_FUNCS="
1944     access
1945     aligned_malloc
1946     arc4random
1947     clock_gettime
1948     closesocket
1949     CommandLineToArgvW
1950     CoTaskMemFree
1951     CryptGenRandom
1952     dlopen
1953     fcntl
1954     flt_lim
1955     fork
1956     getaddrinfo
1957     gethrtime
1958     getopt
1959     GetProcessAffinityMask
1960     GetProcessMemoryInfo
1961     GetProcessTimes
1962     getrusage
1963     GetSystemTimeAsFileTime
1964     gettimeofday
1965     glob
1966     glXGetProcAddress
1967     gmtime_r
1968     inet_aton
1969     isatty
1970     jack_port_get_latency_range
1971     kbhit
1972     LoadLibrary
1973     localtime_r
1974     lstat
1975     lzo1x_999_compress
1976     mach_absolute_time
1977     MapViewOfFile
1978     memalign
1979     mkstemp
1980     mmap
1981     mprotect
1982     nanosleep
1983     PeekNamedPipe
1984     posix_memalign
1985     pthread_cancel
1986     sched_getaffinity
1987     SetConsoleTextAttribute
1988     SetConsoleCtrlHandler
1989     setmode
1990     setrlimit
1991     Sleep
1992     strerror_r
1993     sysconf
1994     sysctl
1995     usleep
1996     UTGetOSTypeFromString
1997     VirtualAlloc
1998     wglGetProcAddress
1999 "
2000
2001 TOOLCHAIN_FEATURES="
2002     as_dn_directive
2003     as_fpu_directive
2004     as_func
2005     as_object_arch
2006     asm_mod_q
2007     attribute_may_alias
2008     attribute_packed
2009     ebp_available
2010     ebx_available
2011     gnu_as
2012     gnu_windres
2013     ibm_asm
2014     inline_asm_direct_symbol_refs
2015     inline_asm_labels
2016     inline_asm_nonlocal_labels
2017     pragma_deprecated
2018     rsync_contimeout
2019     symver_asm_label
2020     symver_gnu_asm
2021     vfp_args
2022     xform_asm
2023     xmm_clobbers
2024 "
2025
2026 TYPES_LIST="
2027     CONDITION_VARIABLE_Ptr
2028     socklen_t
2029     struct_addrinfo
2030     struct_group_source_req
2031     struct_ip_mreq_source
2032     struct_ipv6_mreq
2033     struct_msghdr_msg_flags
2034     struct_pollfd
2035     struct_rusage_ru_maxrss
2036     struct_sctp_event_subscribe
2037     struct_sockaddr_in6
2038     struct_sockaddr_sa_len
2039     struct_sockaddr_storage
2040     struct_stat_st_mtim_tv_nsec
2041     struct_v4l2_frmivalenum_discrete
2042 "
2043
2044 HAVE_LIST="
2045     $ARCH_EXT_LIST
2046     $(add_suffix _external $ARCH_EXT_LIST)
2047     $(add_suffix _inline   $ARCH_EXT_LIST)
2048     $ARCH_FEATURES
2049     $ATOMICS_LIST
2050     $BUILTIN_LIST
2051     $COMPLEX_FUNCS
2052     $HAVE_LIST_CMDLINE
2053     $HAVE_LIST_PUB
2054     $HEADERS_LIST
2055     $INTRINSICS_LIST
2056     $MATH_FUNCS
2057     $SYSTEM_FUNCS
2058     $THREADS_LIST
2059     $TOOLCHAIN_FEATURES
2060     $TYPES_LIST
2061     alsa
2062     atomics_native
2063     dos_paths
2064     dxva2_lib
2065     dxva2api_cobj
2066     jack
2067     libc_msvcrt
2068     makeinfo
2069     makeinfo_html
2070     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2071     perl
2072     pod2man
2073     sdl2
2074     section_data_rel_ro
2075     sndio
2076     texi2html
2077     threads
2078     vaapi_drm
2079     vaapi_x11
2080     vdpau_x11
2081     winrt
2082 "
2083
2084 # options emitted with CONFIG_ prefix but not available on the command line
2085 CONFIG_EXTRA="
2086     aandcttables
2087     ac3dsp
2088     audio_frame_queue
2089     audiodsp
2090     blockdsp
2091     bswapdsp
2092     cabac
2093     dirac_parse
2094     dvprofile
2095     exif
2096     faandct
2097     faanidct
2098     fdctdsp
2099     flacdsp
2100     fmtconvert
2101     frame_thread_encoder
2102     g722dsp
2103     golomb
2104     gplv3
2105     h263dsp
2106     h264chroma
2107     h264dsp
2108     h264parse
2109     h264pred
2110     h264qpel
2111     hevcparse
2112     hpeldsp
2113     huffman
2114     huffyuvdsp
2115     huffyuvencdsp
2116     idctdsp
2117     iirfilter
2118     mdct15
2119     intrax8
2120     iso_media
2121     ividsp
2122     jpegtables
2123     lgplv3
2124     libx262
2125     llauddsp
2126     llviddsp
2127     llvidencdsp
2128     lpc
2129     lzf
2130     me_cmp
2131     mpeg_er
2132     mpegaudio
2133     mpegaudiodsp
2134     mpegaudioheader
2135     mpegvideo
2136     mpegvideoenc
2137     mss34dsp
2138     pixblockdsp
2139     qpeldsp
2140     qsv
2141     qsvdec
2142     qsvenc
2143     rangecoder
2144     riffdec
2145     riffenc
2146     rtpdec
2147     rtpenc_chain
2148     rv34dsp
2149     sinewin
2150     snappy
2151     srtp
2152     startcode
2153     texturedsp
2154     texturedspenc
2155     tpeldsp
2156     vaapi_encode
2157     vc1dsp
2158     videodsp
2159     vp3dsp
2160     vp56dsp
2161     vp8dsp
2162     vt_bt2020
2163     wma_freqs
2164     wmv2dsp
2165 "
2166
2167 CMDLINE_SELECT="
2168     $ARCH_EXT_LIST
2169     $CONFIG_LIST
2170     $HAVE_LIST_CMDLINE
2171     $THREADS_LIST
2172     asm
2173     cross_compile
2174     debug
2175     extra_warnings
2176     logging
2177     lto
2178     optimizations
2179     rpath
2180     stripping
2181 "
2182
2183 PATHS_LIST="
2184     bindir
2185     datadir
2186     docdir
2187     incdir
2188     libdir
2189     mandir
2190     pkgconfigdir
2191     prefix
2192     shlibdir
2193     install_name_dir
2194 "
2195
2196 CMDLINE_SET="
2197     $PATHS_LIST
2198     ar
2199     arch
2200     as
2201     assert_level
2202     build_suffix
2203     cc
2204     objcc
2205     cpu
2206     cross_prefix
2207     custom_allocator
2208     cxx
2209     dep_cc
2210     doxygen
2211     env
2212     extra_version
2213     gas
2214     host_cc
2215     host_cflags
2216     host_extralibs
2217     host_ld
2218     host_ldflags
2219     host_os
2220     ignore_tests
2221     install
2222     ld
2223     ln_s
2224     logfile
2225     malloc_prefix
2226     nm
2227     optflags
2228     nvccflags
2229     pkg_config
2230     pkg_config_flags
2231     progs_suffix
2232     random_seed
2233     ranlib
2234     samples
2235     strip
2236     sws_max_filter_size
2237     sysinclude
2238     sysroot
2239     target_exec
2240     target_os
2241     target_path
2242     target_samples
2243     tempprefix
2244     toolchain
2245     valgrind
2246     yasmexe
2247 "
2248
2249 CMDLINE_APPEND="
2250     extra_cflags
2251     extra_cxxflags
2252     extra_objcflags
2253     host_cppflags
2254 "
2255
2256 # code dependency declarations
2257
2258 # architecture extensions
2259
2260 armv5te_deps="arm"
2261 armv6_deps="arm"
2262 armv6t2_deps="arm"
2263 armv8_deps="aarch64"
2264 neon_deps_any="aarch64 arm"
2265 intrinsics_neon_deps="neon"
2266 vfp_deps_any="aarch64 arm"
2267 vfpv3_deps="vfp"
2268 setend_deps="arm"
2269
2270 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2271
2272 loongson2_deps="mips"
2273 loongson3_deps="mips"
2274 mipsfpu_deps="mips"
2275 mipsdsp_deps="mips"
2276 mipsdspr2_deps="mips"
2277 mips32r2_deps="mips"
2278 mips32r5_deps="mips"
2279 mips32r6_deps="mips"
2280 mips64r2_deps="mips"
2281 mips64r6_deps="mips"
2282 msa_deps="mipsfpu"
2283 mmi_deps="mips"
2284
2285 altivec_deps="ppc"
2286 dcbzl_deps="ppc"
2287 ldbrx_deps="ppc"
2288 ppc4xx_deps="ppc"
2289 vsx_deps="altivec"
2290 power8_deps="vsx"
2291
2292 cpunop_deps="i686"
2293 x86_64_select="i686"
2294 x86_64_suggest="fast_cmov"
2295
2296 amd3dnow_deps="mmx"
2297 amd3dnowext_deps="amd3dnow"
2298 i686_deps="x86"
2299 mmx_deps="x86"
2300 mmxext_deps="mmx"
2301 sse_deps="mmxext"
2302 sse2_deps="sse"
2303 sse3_deps="sse2"
2304 ssse3_deps="sse3"
2305 sse4_deps="ssse3"
2306 sse42_deps="sse4"
2307 aesni_deps="sse42"
2308 avx_deps="sse42"
2309 xop_deps="avx"
2310 fma3_deps="avx"
2311 fma4_deps="avx"
2312 avx2_deps="avx"
2313
2314 mmx_external_deps="yasm"
2315 mmx_inline_deps="inline_asm"
2316 mmx_suggest="mmx_external mmx_inline"
2317
2318 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2319     eval dep=\$${ext}_deps
2320     eval ${ext}_external_deps='"${dep}_external"'
2321     eval ${ext}_inline_deps='"${dep}_inline"'
2322     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2323 done
2324
2325 aligned_stack_if_any="aarch64 ppc x86"
2326 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2327 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2328 fast_unaligned_if_any="aarch64 ppc x86"
2329 simd_align_16_if_any="altivec neon sse"
2330 simd_align_32_if_any="avx"
2331
2332 # system capabilities
2333 symver_if_any="symver_asm_label symver_gnu_asm"
2334 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2335
2336 # threading support
2337 atomics_gcc_if="sync_val_compare_and_swap"
2338 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2339 atomics_win32_if="MemoryBarrier"
2340 atomics_native_if_any="$ATOMICS_LIST"
2341 w32threads_deps="atomics_native"
2342 threads_if_any="$THREADS_LIST"
2343
2344 # subsystems
2345 dct_select="rdft"
2346 dirac_parse_select="golomb"
2347 error_resilience_select="me_cmp"
2348 faandct_deps="faan fdctdsp"
2349 faanidct_deps="faan idctdsp"
2350 h264dsp_select="startcode"
2351 hevcparse_select="golomb"
2352 frame_thread_encoder_deps="encoders threads"
2353 intrax8_select="blockdsp idctdsp"
2354 mdct_select="fft"
2355 mdct15_select="fft"
2356 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2357 mpeg_er_select="error_resilience"
2358 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2359 mpegaudiodsp_select="dct"
2360 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2361 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2362 vc1dsp_select="h264chroma qpeldsp startcode"
2363 rdft_select="fft"
2364
2365 # decoders / encoders
2366 aac_decoder_select="mdct15 mdct sinewin"
2367 aac_fixed_decoder_select="mdct sinewin"
2368 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2369 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2370 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2371 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2372 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2373 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2374 adpcm_g722_decoder_select="g722dsp"
2375 adpcm_g722_encoder_select="g722dsp"
2376 aic_decoder_select="golomb idctdsp"
2377 alac_encoder_select="lpc"
2378 als_decoder_select="bswapdsp"
2379 amrnb_decoder_select="lsp"
2380 amrwb_decoder_select="lsp"
2381 amv_decoder_select="sp5x_decoder exif"
2382 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2383 ape_decoder_select="bswapdsp llauddsp"
2384 apng_decoder_select="zlib"
2385 apng_encoder_select="llvidencdsp zlib"
2386 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2387 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2388 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2389 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2390 atrac1_decoder_select="mdct sinewin"
2391 atrac3_decoder_select="mdct"
2392 atrac3p_decoder_select="mdct sinewin"
2393 avrn_decoder_select="exif jpegtables"
2394 bink_decoder_select="blockdsp hpeldsp"
2395 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2396 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2397 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2398 cllc_decoder_select="bswapdsp"
2399 comfortnoise_encoder_select="lpc"
2400 cook_decoder_select="audiodsp mdct sinewin"
2401 cscd_decoder_select="lzo"
2402 cscd_decoder_suggest="zlib"
2403 dca_decoder_select="mdct"
2404 dds_decoder_select="texturedsp"
2405 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2406 dnxhd_decoder_select="blockdsp idctdsp"
2407 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2408 dvvideo_decoder_select="dvprofile idctdsp"
2409 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2410 dxa_decoder_select="zlib"
2411 dxv_decoder_select="lzf texturedsp"
2412 eac3_decoder_select="ac3_decoder"
2413 eac3_encoder_select="ac3_encoder"
2414 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2415 eatgq_decoder_select="aandcttables"
2416 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2417 exr_decoder_select="zlib"
2418 ffv1_decoder_select="rangecoder"
2419 ffv1_encoder_select="rangecoder"
2420 ffvhuff_decoder_select="huffyuv_decoder"
2421 ffvhuff_encoder_select="huffyuv_encoder"
2422 fic_decoder_select="golomb"
2423 flac_decoder_select="flacdsp"
2424 flac_encoder_select="bswapdsp flacdsp lpc"
2425 flashsv2_decoder_select="zlib"
2426 flashsv2_encoder_select="zlib"
2427 flashsv_decoder_select="zlib"
2428 flashsv_encoder_select="zlib"
2429 flv_decoder_select="h263_decoder"
2430 flv_encoder_select="h263_encoder"
2431 fourxm_decoder_select="blockdsp bswapdsp"
2432 fraps_decoder_select="bswapdsp huffman"
2433 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2434 g729_decoder_select="audiodsp"
2435 h261_decoder_select="mpegvideo"
2436 h261_encoder_select="aandcttables mpegvideoenc"
2437 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2438 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2439 h263i_decoder_select="h263_decoder"
2440 h263p_decoder_select="h263_decoder"
2441 h263p_encoder_select="h263_encoder"
2442 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2443 h264_decoder_suggest="error_resilience"
2444 hap_decoder_select="snappy texturedsp"
2445 hap_encoder_deps="libsnappy"
2446 hap_encoder_select="texturedspenc"
2447 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2448 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2449 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2450 iac_decoder_select="imc_decoder"
2451 imc_decoder_select="bswapdsp fft mdct sinewin"
2452 indeo3_decoder_select="hpeldsp"
2453 indeo4_decoder_select="ividsp"
2454 indeo5_decoder_select="ividsp"
2455 interplay_video_decoder_select="hpeldsp"
2456 jpegls_decoder_select="mjpeg_decoder"
2457 jv_decoder_select="blockdsp"
2458 lagarith_decoder_select="llviddsp"
2459 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2460 magicyuv_decoder_select="llviddsp"
2461 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2462 metasound_decoder_select="lsp mdct sinewin"
2463 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2464 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2465 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2466 mjpegb_decoder_select="mjpeg_decoder"
2467 mlp_decoder_select="mlp_parser"
2468 mlp_encoder_select="lpc"
2469 motionpixels_decoder_select="bswapdsp"
2470 mp1_decoder_select="mpegaudio"
2471 mp1float_decoder_select="mpegaudio"
2472 mp2_decoder_select="mpegaudio"
2473 mp2float_decoder_select="mpegaudio"
2474 mp3_decoder_select="mpegaudio"
2475 mp3adu_decoder_select="mpegaudio"
2476 mp3adufloat_decoder_select="mpegaudio"
2477 mp3float_decoder_select="mpegaudio"
2478 mp3on4_decoder_select="mpegaudio"
2479 mp3on4float_decoder_select="mpegaudio"
2480 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2481 mpc8_decoder_select="mpegaudiodsp"
2482 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2483 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2484 mpegvideo_decoder_select="mpegvideo"
2485 mpeg1video_decoder_select="mpegvideo"
2486 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2487 mpeg2video_decoder_select="mpegvideo"
2488 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2489 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2490 mpeg4_encoder_select="h263_encoder"
2491 msa1_decoder_select="mss34dsp"
2492 mscc_decoder_select="zlib"
2493 msmpeg4v1_decoder_select="h263_decoder"
2494 msmpeg4v2_decoder_select="h263_decoder"
2495 msmpeg4v2_encoder_select="h263_encoder"
2496 msmpeg4v3_decoder_select="h263_decoder"
2497 msmpeg4v3_encoder_select="h263_encoder"
2498 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2499 mts2_decoder_select="mss34dsp"
2500 mxpeg_decoder_select="mjpeg_decoder"
2501 nellymoser_decoder_select="mdct sinewin"
2502 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2503 nuv_decoder_select="idctdsp lzo"
2504 on2avc_decoder_select="mdct"
2505 opus_decoder_deps="swresample"
2506 opus_decoder_select="mdct15"
2507 opus_encoder_select="audio_frame_queue mdct15"
2508 png_decoder_select="zlib"
2509 png_encoder_select="llvidencdsp zlib"
2510 prores_decoder_select="blockdsp idctdsp"
2511 prores_encoder_select="fdctdsp"
2512 qcelp_decoder_select="lsp"
2513 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2514 ra_144_decoder_select="audiodsp"
2515 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2516 ralf_decoder_select="golomb"
2517 rawvideo_decoder_select="bswapdsp"
2518 rscc_decoder_select="zlib"
2519 rtjpeg_decoder_select="me_cmp"
2520 rv10_decoder_select="h263_decoder"
2521 rv10_encoder_select="h263_encoder"
2522 rv20_decoder_select="h263_decoder"
2523 rv20_encoder_select="h263_encoder"
2524 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2525 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2526 screenpresso_decoder_select="zlib"
2527 shorten_decoder_select="bswapdsp"
2528 sipr_decoder_select="lsp"
2529 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2530 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2531 sonic_decoder_select="golomb rangecoder"
2532 sonic_encoder_select="golomb rangecoder"
2533 sonic_ls_encoder_select="golomb rangecoder"
2534 sp5x_decoder_select="mjpeg_decoder"
2535 srgc_decoder_select="zlib"
2536 svq1_decoder_select="hpeldsp"
2537 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2538 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2539 svq3_decoder_suggest="zlib"
2540 tak_decoder_select="audiodsp"
2541 tdsc_decoder_select="zlib mjpeg_decoder"
2542 theora_decoder_select="vp3_decoder"
2543 thp_decoder_select="mjpeg_decoder"
2544 tiff_decoder_suggest="zlib lzma"
2545 tiff_encoder_suggest="zlib"
2546 truehd_decoder_select="mlp_parser"
2547 truehd_encoder_select="lpc"
2548 truemotion2_decoder_select="bswapdsp"
2549 truespeech_decoder_select="bswapdsp"
2550 tscc_decoder_select="zlib"
2551 twinvq_decoder_select="mdct lsp sinewin"
2552 txd_decoder_select="texturedsp"
2553 utvideo_decoder_select="bswapdsp llviddsp"
2554 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2555 vble_decoder_select="llviddsp"
2556 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2557 vc1_qsv_decoder_deps="libmfx"
2558 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2559 vc1image_decoder_select="vc1_decoder"
2560 vorbis_decoder_select="mdct"
2561 vorbis_encoder_select="mdct"
2562 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2563 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2564 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2565 vp6a_decoder_select="vp6_decoder"
2566 vp6f_decoder_select="vp6_decoder"
2567 vp7_decoder_select="h264pred videodsp vp8dsp"
2568 vp8_decoder_select="h264pred videodsp vp8dsp"
2569 vp9_decoder_select="videodsp vp9_parser"
2570 webp_decoder_select="vp8_decoder exif"
2571 wmalossless_decoder_select="llauddsp"
2572 wmapro_decoder_select="mdct sinewin wma_freqs"
2573 wmav1_decoder_select="mdct sinewin wma_freqs"
2574 wmav1_encoder_select="mdct sinewin wma_freqs"
2575 wmav2_decoder_select="mdct sinewin wma_freqs"
2576 wmav2_encoder_select="mdct sinewin wma_freqs"
2577 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2578 wmv1_decoder_select="h263_decoder"
2579 wmv1_encoder_select="h263_encoder"
2580 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2581 wmv2_encoder_select="h263_encoder wmv2dsp"
2582 wmv3_decoder_select="vc1_decoder"
2583 wmv3image_decoder_select="wmv3_decoder"
2584 xma1_decoder_select="wmapro_decoder"
2585 xma2_decoder_select="wmapro_decoder"
2586 zerocodec_decoder_select="zlib"
2587 zlib_decoder_select="zlib"
2588 zlib_encoder_select="zlib"
2589 zmbv_decoder_select="zlib"
2590 zmbv_encoder_select="zlib"
2591
2592 # platform codecs
2593 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2594 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2595
2596 # hardware accelerators
2597 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2598 cuda_deps_any="dlopen LoadLibrary"
2599 cuvid_deps="cuda"
2600 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2601 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2602 dxva2_extralibs="-luser32"
2603 dxva2_lib_deps="dxva2"
2604 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2605 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2606 vda_deps="vda_framework pthreads"
2607 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2608 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2609 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2610 xvmc_deps="X11_extensions_XvMClib_h"
2611
2612 h263_vaapi_hwaccel_deps="vaapi"
2613 h263_vaapi_hwaccel_select="h263_decoder"
2614 h263_videotoolbox_hwaccel_deps="videotoolbox"
2615 h263_videotoolbox_hwaccel_select="h263_decoder"
2616 h264_cuvid_hwaccel_deps="cuda cuvid"
2617 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2618 h264_d3d11va_hwaccel_deps="d3d11va"
2619 h264_d3d11va_hwaccel_select="h264_decoder"
2620 h264_dxva2_hwaccel_deps="dxva2"
2621 h264_dxva2_hwaccel_select="h264_decoder"
2622 h264_mediacodec_hwaccel_deps="mediacodec"
2623 h264_mmal_hwaccel_deps="mmal"
2624 h264_qsv_hwaccel_deps="libmfx"
2625 h264_vaapi_hwaccel_deps="vaapi"
2626 h264_vaapi_hwaccel_select="h264_decoder"
2627 h264_vda_hwaccel_deps="vda"
2628 h264_vda_hwaccel_select="h264_decoder"
2629 h264_vda_old_hwaccel_deps="vda"
2630 h264_vda_old_hwaccel_select="h264_decoder"
2631 h264_vdpau_hwaccel_deps="vdpau"
2632 h264_vdpau_hwaccel_select="h264_decoder"
2633 h264_videotoolbox_hwaccel_deps="videotoolbox"
2634 h264_videotoolbox_hwaccel_select="h264_decoder"
2635 hevc_cuvid_hwaccel_deps="cuda cuvid"
2636 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2637 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2638 hevc_d3d11va_hwaccel_select="hevc_decoder"
2639 hevc_mediacodec_hwaccel_deps="mediacodec"
2640 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2641 hevc_dxva2_hwaccel_select="hevc_decoder"
2642 hevc_qsv_hwaccel_deps="libmfx"
2643 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2644 hevc_vaapi_hwaccel_select="hevc_decoder"
2645 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2646 hevc_vdpau_hwaccel_select="hevc_decoder"
2647 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2648 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2649 mpeg_xvmc_hwaccel_deps="xvmc"
2650 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2651 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2652 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2653 mpeg1_vdpau_hwaccel_deps="vdpau"
2654 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2655 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2656 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2657 mpeg1_xvmc_hwaccel_deps="xvmc"
2658 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2659 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2660 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2661 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2662 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2663 mpeg2_dxva2_hwaccel_deps="dxva2"
2664 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2665 mpeg2_mmal_hwaccel_deps="mmal"
2666 mpeg2_qsv_hwaccel_deps="libmfx"
2667 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2668 mpeg2_vaapi_hwaccel_deps="vaapi"
2669 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_vdpau_hwaccel_deps="vdpau"
2671 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2672 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2673 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2674 mpeg2_xvmc_hwaccel_deps="xvmc"
2675 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2676 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2677 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2678 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2679 mpeg4_mmal_hwaccel_deps="mmal"
2680 mpeg4_vaapi_hwaccel_deps="vaapi"
2681 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2682 mpeg4_vdpau_hwaccel_deps="vdpau"
2683 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2684 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2685 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2686 vc1_cuvid_hwaccel_deps="cuda cuvid"
2687 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2688 vc1_d3d11va_hwaccel_deps="d3d11va"
2689 vc1_d3d11va_hwaccel_select="vc1_decoder"
2690 vc1_dxva2_hwaccel_deps="dxva2"
2691 vc1_dxva2_hwaccel_select="vc1_decoder"
2692 vc1_mmal_hwaccel_deps="mmal"
2693 vc1_qsv_hwaccel_deps="libmfx"
2694 vc1_qsv_hwaccel_select="qsvdec_vc1"
2695 vc1_vaapi_hwaccel_deps="vaapi"
2696 vc1_vaapi_hwaccel_select="vc1_decoder"
2697 vc1_vdpau_hwaccel_deps="vdpau"
2698 vc1_vdpau_hwaccel_select="vc1_decoder"
2699 vp8_cuvid_hwaccel_deps="cuda cuvid"
2700 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2701 vp9_cuvid_hwaccel_deps="cuda cuvid"
2702 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2703 vp8_mediacodec_hwaccel_deps="mediacodec"
2704 vp8_qsv_hwaccel_deps="libmfx"
2705 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2706 vp9_d3d11va_hwaccel_select="vp9_decoder"
2707 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2708 vp9_dxva2_hwaccel_select="vp9_decoder"
2709 vp9_mediacodec_hwaccel_deps="mediacodec"
2710 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2711 vp9_vaapi_hwaccel_select="vp9_decoder"
2712 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2713 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2714 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2715 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2716
2717 # hardware-accelerated codecs
2718 omx_deps="dlopen pthreads"
2719 omx_extralibs='$ldl'
2720 omx_rpi_select="omx"
2721 qsvdec_select="qsv"
2722 qsvenc_select="qsv"
2723 vaapi_encode_deps="vaapi"
2724
2725 hwupload_cuda_filter_deps="cuda"
2726 scale_npp_filter_deps="cuda_sdk libnpp"
2727 scale_cuda_filter_deps="cuda_sdk"
2728
2729 nvenc_deps="cuda"
2730 nvenc_deps_any="dlopen LoadLibrary"
2731 nvenc_encoder_deps="nvenc"
2732
2733 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2734 h264_cuvid_decoder_deps="cuda cuvid"
2735 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2736 h264_mediacodec_decoder_deps="mediacodec"
2737 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2738 h264_mmal_decoder_deps="mmal"
2739 h264_nvenc_encoder_deps="nvenc"
2740 h264_omx_encoder_deps="omx"
2741 h264_qsv_decoder_deps="libmfx"
2742 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2743 h264_qsv_encoder_deps="libmfx"
2744 h264_qsv_encoder_select="qsvenc"
2745 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2746 h264_vaapi_encoder_select="vaapi_encode golomb"
2747 h264_vda_decoder_deps="vda"
2748 h264_vda_decoder_select="h264_decoder"
2749 h264_vdpau_decoder_deps="vdpau"
2750 h264_vdpau_decoder_select="h264_decoder"
2751 hevc_cuvid_decoder_deps="cuda cuvid"
2752 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2753 hevc_mediacodec_decoder_deps="mediacodec"
2754 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2755 hevc_nvenc_encoder_deps="nvenc"
2756 hevc_qsv_decoder_deps="libmfx"
2757 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2758 hevc_qsv_encoder_deps="libmfx"
2759 hevc_qsv_encoder_select="hevcparse qsvenc"
2760 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2761 hevc_vaapi_encoder_select="vaapi_encode golomb"
2762 mjpeg_cuvid_decoder_deps="cuda cuvid"
2763 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2764 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2765 mpeg1_cuvid_decoder_deps="cuda cuvid"
2766 mpeg1_vdpau_decoder_deps="vdpau"
2767 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2768 mpeg2_crystalhd_decoder_select="crystalhd"
2769 mpeg2_cuvid_decoder_deps="cuda cuvid"
2770 mpeg2_mmal_decoder_deps="mmal"
2771 mpeg2_qsv_decoder_deps="libmfx"
2772 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2773 mpeg2_qsv_encoder_deps="libmfx"
2774 mpeg2_qsv_encoder_select="qsvenc"
2775 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2776 mpeg2_vaapi_encoder_select="vaapi_encode"
2777 mpeg4_crystalhd_decoder_select="crystalhd"
2778 mpeg4_cuvid_decoder_deps="cuda cuvid"
2779 mpeg4_mediacodec_decoder_deps="mediacodec"
2780 mpeg4_mmal_decoder_deps="mmal"
2781 mpeg4_omx_encoder_deps="omx"
2782 mpeg4_vdpau_decoder_deps="vdpau"
2783 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2784 mpeg_vdpau_decoder_deps="vdpau"
2785 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2786 msmpeg4_crystalhd_decoder_select="crystalhd"
2787 nvenc_h264_encoder_select="h264_nvenc_encoder"
2788 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2789 vc1_crystalhd_decoder_select="crystalhd"
2790 vc1_cuvid_decoder_deps="cuda cuvid"
2791 vc1_mmal_decoder_deps="mmal"
2792 vc1_vdpau_decoder_deps="vdpau"
2793 vc1_vdpau_decoder_select="vc1_decoder"
2794 vp8_cuvid_decoder_deps="cuda cuvid"
2795 vp8_mediacodec_decoder_deps="mediacodec"
2796 vp8_qsv_decoder_deps="libmfx"
2797 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2798 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2799 vp8_vaapi_encoder_select="vaapi_encode"
2800 vp9_cuvid_decoder_deps="cuda cuvid"
2801 vp9_mediacodec_decoder_deps="mediacodec"
2802 wmv3_crystalhd_decoder_select="crystalhd"
2803 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2804
2805 # parsers
2806 h264_parser_select="golomb h264dsp h264parse"
2807 hevc_parser_select="hevcparse"
2808 mpegaudio_parser_select="mpegaudioheader"
2809 mpegvideo_parser_select="mpegvideo"
2810 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2811 vc1_parser_select="vc1dsp"
2812
2813 # bitstream_filters
2814 mjpeg2jpeg_bsf_select="jpegtables"
2815
2816 # external libraries
2817 aac_at_decoder_deps="audiotoolbox"
2818 ac3_at_decoder_deps="audiotoolbox"
2819 ac3_at_decoder_select="ac3_parser"
2820 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2821 alac_at_decoder_deps="audiotoolbox"
2822 amr_nb_at_decoder_deps="audiotoolbox"
2823 avisynth_deps_any="dlopen LoadLibrary"
2824 avisynth_demuxer_deps="avisynth"
2825 avisynth_demuxer_select="riffdec"
2826 eac3_at_decoder_deps="audiotoolbox"
2827 eac3_at_decoder_select="ac3_parser"
2828 gsm_ms_at_decoder_deps="audiotoolbox"
2829 ilbc_at_decoder_deps="audiotoolbox"
2830 mp1_at_decoder_deps="audiotoolbox"
2831 mp2_at_decoder_deps="audiotoolbox"
2832 mp3_at_decoder_deps="audiotoolbox"
2833 mp1_at_decoder_select="mpegaudioheader"
2834 mp2_at_decoder_select="mpegaudioheader"
2835 mp3_at_decoder_select="mpegaudioheader"
2836 pcm_alaw_at_decoder_deps="audiotoolbox"
2837 pcm_mulaw_at_decoder_deps="audiotoolbox"
2838 qdmc_at_decoder_deps="audiotoolbox"
2839 qdm2_at_decoder_deps="audiotoolbox"
2840 aac_at_encoder_deps="audiotoolbox"
2841 aac_at_encoder_select="audio_frame_queue"
2842 alac_at_encoder_deps="audiotoolbox"
2843 alac_at_encoder_select="audio_frame_queue"
2844 ilbc_at_encoder_deps="audiotoolbox"
2845 ilbc_at_encoder_select="audio_frame_queue"
2846 pcm_alaw_at_encoder_deps="audiotoolbox"
2847 pcm_alaw_at_encoder_select="audio_frame_queue"
2848 pcm_mulaw_at_encoder_deps="audiotoolbox"
2849 pcm_mulaw_at_encoder_select="audio_frame_queue"
2850 chromaprint_muxer_deps="chromaprint"
2851 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2852 libcelt_decoder_deps="libcelt"
2853 libfdk_aac_decoder_deps="libfdk_aac"
2854 libfdk_aac_encoder_deps="libfdk_aac"
2855 libfdk_aac_encoder_select="audio_frame_queue"
2856 libgme_demuxer_deps="libgme"
2857 libgsm_decoder_deps="libgsm"
2858 libgsm_encoder_deps="libgsm"
2859 libgsm_ms_decoder_deps="libgsm"
2860 libgsm_ms_encoder_deps="libgsm"
2861 libilbc_decoder_deps="libilbc"
2862 libilbc_encoder_deps="libilbc"
2863 libkvazaar_encoder_deps="libkvazaar"
2864 libmodplug_demuxer_deps="libmodplug"
2865 libmp3lame_encoder_deps="libmp3lame"
2866 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2867 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2868 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2869 libopencore_amrnb_encoder_select="audio_frame_queue"
2870 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2871 libopenh264_decoder_deps="libopenh264"
2872 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2873 libopenh264_encoder_deps="libopenh264"
2874 libopenjpeg_decoder_deps="libopenjpeg"
2875 libopenjpeg_encoder_deps="libopenjpeg"
2876 libopenmpt_demuxer_deps="libopenmpt"
2877 libopus_decoder_deps="libopus"
2878 libopus_encoder_deps="libopus"
2879 libopus_encoder_select="audio_frame_queue"
2880 librsvg_decoder_deps="librsvg"
2881 libschroedinger_decoder_deps="libschroedinger"
2882 libschroedinger_encoder_deps="libschroedinger"
2883 libshine_encoder_deps="libshine"
2884 libshine_encoder_select="audio_frame_queue"
2885 libspeex_decoder_deps="libspeex"
2886 libspeex_encoder_deps="libspeex"
2887 libspeex_encoder_select="audio_frame_queue"
2888 libtheora_encoder_deps="libtheora"
2889 libtwolame_encoder_deps="libtwolame"
2890 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2891 libvorbis_decoder_deps="libvorbis"
2892 libvorbis_encoder_deps="libvorbis"
2893 libvorbis_encoder_select="audio_frame_queue"
2894 libvpx_vp8_decoder_deps="libvpx"
2895 libvpx_vp8_encoder_deps="libvpx"
2896 libvpx_vp9_decoder_deps="libvpx"
2897 libvpx_vp9_encoder_deps="libvpx"
2898 libwavpack_encoder_deps="libwavpack"
2899 libwavpack_encoder_select="audio_frame_queue"
2900 libwebp_encoder_deps="libwebp"
2901 libwebp_anim_encoder_deps="libwebp"
2902 libx262_encoder_deps="libx262"
2903 libx264_encoder_deps="libx264"
2904 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2905 libx264rgb_encoder_select="libx264_encoder"
2906 libx265_encoder_deps="libx265"
2907 libxavs_encoder_deps="libxavs"
2908 libxvid_encoder_deps="libxvid"
2909 libzvbi_teletext_decoder_deps="libzvbi"
2910 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2911 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2912 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2913 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2914 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2915
2916 # demuxers / muxers
2917 ac3_demuxer_select="ac3_parser"
2918 aiff_muxer_select="iso_media"
2919 asf_demuxer_select="riffdec"
2920 asf_o_demuxer_select="riffdec"
2921 asf_muxer_select="riffenc"
2922 asf_stream_muxer_select="asf_muxer"
2923 avi_demuxer_select="iso_media riffdec exif"
2924 avi_muxer_select="riffenc"
2925 caf_demuxer_select="iso_media riffdec"
2926 caf_muxer_select="iso_media"
2927 dash_muxer_select="mp4_muxer"
2928 dirac_demuxer_select="dirac_parser"
2929 dts_demuxer_select="dca_parser"
2930 dtshd_demuxer_select="dca_parser"
2931 dv_demuxer_select="dvprofile"
2932 dv_muxer_select="dvprofile"
2933 dxa_demuxer_select="riffdec"
2934 eac3_demuxer_select="ac3_parser"
2935 f4v_muxer_select="mov_muxer"
2936 fifo_muxer_deps="threads"
2937 flac_demuxer_select="flac_parser"
2938 hds_muxer_select="flv_muxer"
2939 hls_muxer_select="mpegts_muxer"
2940 image2_alias_pix_demuxer_select="image2_demuxer"
2941 image2_brender_pix_demuxer_select="image2_demuxer"
2942 ipod_muxer_select="mov_muxer"
2943 ismv_muxer_select="mov_muxer"
2944 libnut_demuxer_deps="libnut"
2945 libnut_muxer_deps="libnut"
2946 matroska_audio_muxer_select="matroska_muxer"
2947 matroska_demuxer_select="iso_media riffdec"
2948 matroska_demuxer_suggest="bzlib lzo zlib"
2949 matroska_muxer_select="iso_media riffenc"
2950 mmf_muxer_select="riffenc"
2951 mov_demuxer_select="iso_media riffdec"
2952 mov_demuxer_suggest="zlib"
2953 mov_muxer_select="iso_media riffenc rtpenc_chain"
2954 mp3_demuxer_select="mpegaudio_parser"
2955 mp3_muxer_select="mpegaudioheader"
2956 mp4_muxer_select="mov_muxer"
2957 mpegts_demuxer_select="iso_media"
2958 mpegts_muxer_select="adts_muxer latm_muxer"
2959 mpegtsraw_demuxer_select="mpegts_demuxer"
2960 mxf_d10_muxer_select="mxf_muxer"
2961 mxf_opatom_muxer_select="mxf_muxer"
2962 nut_muxer_select="riffenc"
2963 nuv_demuxer_select="riffdec"
2964 oga_muxer_select="ogg_muxer"
2965 ogg_demuxer_select="dirac_parse"
2966 ogv_muxer_select="ogg_muxer"
2967 opus_muxer_select="ogg_muxer"
2968 psp_muxer_select="mov_muxer"
2969 rtp_demuxer_select="sdp_demuxer"
2970 rtp_muxer_select="golomb"
2971 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2972 rtsp_demuxer_select="http_protocol rtpdec"
2973 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2974 sap_demuxer_select="sdp_demuxer"
2975 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2976 sdp_demuxer_select="rtpdec"
2977 smoothstreaming_muxer_select="ismv_muxer"
2978 spdif_muxer_select="aac_parser"
2979 spx_muxer_select="ogg_muxer"
2980 swf_demuxer_suggest="zlib"
2981 tak_demuxer_select="tak_parser"
2982 tg2_muxer_select="mov_muxer"
2983 tgp_muxer_select="mov_muxer"
2984 vobsub_demuxer_select="mpegps_demuxer"
2985 w64_demuxer_select="wav_demuxer"
2986 w64_muxer_select="wav_muxer"
2987 wav_demuxer_select="riffdec"
2988 wav_muxer_select="riffenc"
2989 webm_muxer_select="iso_media riffenc"
2990 webm_dash_manifest_demuxer_select="matroska_demuxer"
2991 wtv_demuxer_select="mpegts_demuxer riffdec"
2992 wtv_muxer_select="mpegts_muxer riffenc"
2993 xmv_demuxer_select="riffdec"
2994 xwma_demuxer_select="riffdec"
2995
2996 # indevs / outdevs
2997 alsa_indev_deps="alsa"
2998 alsa_outdev_deps="alsa"
2999 avfoundation_indev_deps="pthreads"
3000 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3001 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3002 caca_outdev_deps="libcaca"
3003 decklink_indev_deps="decklink threads"
3004 decklink_indev_extralibs="-lstdc++"
3005 decklink_outdev_deps="decklink threads"
3006 decklink_outdev_extralibs="-lstdc++"
3007 dshow_indev_deps="IBaseFilter"
3008 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3009 dv1394_indev_deps="dv1394"
3010 dv1394_indev_select="dv_demuxer"
3011 fbdev_indev_deps="linux_fb_h"
3012 fbdev_outdev_deps="linux_fb_h"
3013 gdigrab_indev_deps="CreateDIBSection"
3014 gdigrab_indev_extralibs="-lgdi32"
3015 gdigrab_indev_select="bmp_decoder"
3016 iec61883_indev_deps="libiec61883"
3017 jack_indev_deps="jack"
3018 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3019 lavfi_indev_deps="avfilter"
3020 libcdio_indev_deps="libcdio"
3021 libdc1394_indev_deps="libdc1394"
3022 libv4l2_indev_deps="libv4l2"
3023 openal_indev_deps="openal"
3024 opengl_outdev_deps="opengl"
3025 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3026 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3027 pulse_indev_deps="libpulse"
3028 pulse_outdev_deps="libpulse"
3029 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3030 qtkit_indev_select="qtkit"
3031 sdl2_outdev_deps="sdl2"
3032 sndio_indev_deps="sndio"
3033 sndio_outdev_deps="sndio"
3034 v4l_indev_deps="linux_videodev_h"
3035 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3036 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3037 vfwcap_indev_deps="vfw32 vfwcap_defines"
3038 xcbgrab_indev_deps="libxcb"
3039 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3040 xv_outdev_extralibs="-lXv -lX11 -lXext"
3041
3042 # protocols
3043 async_protocol_deps="threads"
3044 bluray_protocol_deps="libbluray"
3045 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3046 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3047 ffrtmpcrypt_protocol_select="tcp_protocol"
3048 ffrtmphttp_protocol_deps="!librtmp_protocol"
3049 ffrtmphttp_protocol_select="http_protocol"
3050 ftp_protocol_select="tcp_protocol"
3051 gopher_protocol_select="network"
3052 http_protocol_select="tcp_protocol"
3053 httpproxy_protocol_select="tcp_protocol"
3054 https_protocol_select="tls_protocol"
3055 icecast_protocol_select="http_protocol"
3056 librtmp_protocol_deps="librtmp"
3057 librtmpe_protocol_deps="librtmp"
3058 librtmps_protocol_deps="librtmp"
3059 librtmpt_protocol_deps="librtmp"
3060 librtmpte_protocol_deps="librtmp"
3061 libsmbclient_protocol_deps="libsmbclient gplv3"
3062 libssh_protocol_deps="libssh"
3063 mmsh_protocol_select="http_protocol"
3064 mmst_protocol_select="network"
3065 rtmp_protocol_deps="!librtmp_protocol"
3066 rtmp_protocol_select="tcp_protocol"
3067 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3068 rtmps_protocol_deps="!librtmp_protocol"
3069 rtmps_protocol_select="tls_protocol"
3070 rtmpt_protocol_select="ffrtmphttp_protocol"
3071 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3072 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3073 rtp_protocol_select="udp_protocol"
3074 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3075 sctp_protocol_select="network"
3076 srtp_protocol_select="rtp_protocol srtp"
3077 tcp_protocol_select="network"
3078 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3079 tls_gnutls_protocol_select="tcp_protocol"
3080 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3081 tls_openssl_protocol_select="tcp_protocol"
3082 tls_schannel_protocol_deps="schannel"
3083 tls_schannel_protocol_select="tcp_protocol"
3084 tls_securetransport_protocol_deps="securetransport"
3085 tls_securetransport_protocol_select="tcp_protocol"
3086 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3087 udp_protocol_select="network"
3088 udplite_protocol_select="network"
3089 unix_protocol_deps="sys_un_h"
3090 unix_protocol_select="network"
3091
3092 # filters
3093 afftfilt_filter_deps="avcodec"
3094 afftfilt_filter_select="fft"
3095 afir_filter_deps="avcodec"
3096 afir_filter_select="fft"
3097 amovie_filter_deps="avcodec avformat"
3098 aresample_filter_deps="swresample"
3099 ass_filter_deps="libass"
3100 atempo_filter_deps="avcodec"
3101 atempo_filter_select="rdft"
3102 azmq_filter_deps="libzmq"
3103 blackframe_filter_deps="gpl"
3104 boxblur_filter_deps="gpl"
3105 bs2b_filter_deps="libbs2b"
3106 colormatrix_filter_deps="gpl"
3107 cover_rect_filter_deps="avcodec avformat gpl"
3108 cropdetect_filter_deps="gpl"
3109 deinterlace_qsv_filter_deps="libmfx"
3110 deinterlace_vaapi_filter_deps="vaapi"
3111 delogo_filter_deps="gpl"
3112 deshake_filter_select="pixelutils"
3113 drawtext_filter_deps="libfreetype"
3114 elbg_filter_deps="avcodec"
3115 eq_filter_deps="gpl"
3116 fftfilt_filter_deps="avcodec"
3117 fftfilt_filter_select="rdft"
3118 find_rect_filter_deps="avcodec avformat gpl"
3119 firequalizer_filter_deps="avcodec"
3120 firequalizer_filter_select="rdft"
3121 flite_filter_deps="libflite"
3122 framerate_filter_select="pixelutils"
3123 frei0r_filter_deps="frei0r dlopen"
3124 frei0r_src_filter_deps="frei0r dlopen"
3125 fspp_filter_deps="gpl"
3126 geq_filter_deps="gpl"
3127 histeq_filter_deps="gpl"
3128 hqdn3d_filter_deps="gpl"
3129 interlace_filter_deps="gpl"
3130 kerndeint_filter_deps="gpl"
3131 ladspa_filter_deps="ladspa dlopen"
3132 mcdeint_filter_deps="avcodec gpl"
3133 movie_filter_deps="avcodec avformat"
3134 mpdecimate_filter_deps="gpl"
3135 mpdecimate_filter_select="pixelutils"
3136 mptestsrc_filter_deps="gpl"
3137 negate_filter_deps="lut_filter"
3138 nnedi_filter_deps="gpl"
3139 ocr_filter_deps="libtesseract"
3140 ocv_filter_deps="libopencv"
3141 owdenoise_filter_deps="gpl"
3142 pan_filter_deps="swresample"
3143 perspective_filter_deps="gpl"
3144 phase_filter_deps="gpl"
3145 pp7_filter_deps="gpl"
3146 pp_filter_deps="gpl postproc"
3147 pullup_filter_deps="gpl"
3148 removelogo_filter_deps="avcodec avformat swscale"
3149 repeatfields_filter_deps="gpl"
3150 resample_filter_deps="avresample"
3151 rubberband_filter_deps="librubberband"
3152 sab_filter_deps="gpl swscale"
3153 scale2ref_filter_deps="swscale"
3154 scale_filter_deps="swscale"
3155 scale_qsv_filter_deps="libmfx"
3156 select_filter_select="pixelutils"
3157 showcqt_filter_deps="avcodec avformat swscale"
3158 showcqt_filter_select="fft"
3159 showfreqs_filter_deps="avcodec"
3160 showfreqs_filter_select="fft"
3161 showspectrum_filter_deps="avcodec"
3162 showspectrum_filter_select="fft"
3163 showspectrumpic_filter_deps="avcodec"
3164 showspectrumpic_filter_select="fft"
3165 signature_filter_deps="gpl avcodec avformat"
3166 smartblur_filter_deps="gpl swscale"
3167 sofalizer_filter_deps="netcdf avcodec"
3168 sofalizer_filter_select="fft"
3169 spectrumsynth_filter_deps="avcodec"
3170 spectrumsynth_filter_select="fft"
3171 spp_filter_deps="gpl avcodec"
3172 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3173 stereo3d_filter_deps="gpl"
3174 subtitles_filter_deps="avformat avcodec libass"
3175 super2xsai_filter_deps="gpl"
3176 pixfmts_super2xsai_test_deps="super2xsai_filter"
3177 tinterlace_filter_deps="gpl"
3178 tinterlace_merge_test_deps="tinterlace_filter"
3179 tinterlace_pad_test_deps="tinterlace_filter"
3180 uspp_filter_deps="gpl avcodec"
3181 vaguedenoiser_filter_deps="gpl"
3182 vidstabdetect_filter_deps="libvidstab"
3183 vidstabtransform_filter_deps="libvidstab"
3184 zmq_filter_deps="libzmq"
3185 zoompan_filter_deps="swscale"
3186 zscale_filter_deps="libzimg"
3187 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3188
3189 # examples
3190 avio_dir_cmd_deps="avformat avutil"
3191 avio_reading_deps="avformat avcodec avutil"
3192 decode_audio_example_deps="avcodec avutil"
3193 decode_video_example_deps="avcodec avutil"
3194 demuxing_decoding_example_deps="avcodec avformat avutil"
3195 encode_audio_example_deps="avcodec avutil"
3196 encode_video_example_deps="avcodec avutil"
3197 extract_mvs_example_deps="avcodec avformat avutil"
3198 filter_audio_example_deps="avfilter avutil"
3199 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3200 filtering_video_example_deps="avfilter avcodec avformat avutil"
3201 http_multiclient_example_deps="avformat avutil fork"
3202 metadata_example_deps="avformat avutil"
3203 muxing_example_deps="avcodec avformat avutil swscale"
3204 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3205 remuxing_example_deps="avcodec avformat avutil"
3206 resampling_audio_example_deps="avutil swresample"
3207 scaling_video_example_deps="avutil swscale"
3208 transcode_aac_example_deps="avcodec avformat swresample"
3209 transcoding_example_deps="avfilter avcodec avformat avutil"
3210
3211 # libraries, in linking order
3212 avcodec_deps="avutil"
3213 avcodec_select="null_bsf"
3214 avdevice_deps="avformat avcodec avutil"
3215 avfilter_deps="avutil"
3216 avformat_deps="avcodec avutil"
3217 avresample_deps="avutil"
3218 postproc_deps="avutil gpl"
3219 swresample_deps="avutil"
3220 swscale_deps="avutil"
3221
3222 # programs
3223 ffmpeg_deps="avcodec avfilter avformat swresample"
3224 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3225                null_filter
3226                trim_filter"
3227 ffplay_deps="avcodec avformat swscale swresample sdl2"
3228 ffplay_extralibs='$sdl2_extralibs'
3229 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3230 ffprobe_deps="avcodec avformat"
3231 ffserver_deps="avformat fork sarestart"
3232 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3233
3234 # documentation
3235 podpages_deps="perl"
3236 manpages_deps="perl pod2man"
3237 htmlpages_deps="perl"
3238 htmlpages_deps_any="makeinfo_html texi2html"
3239 txtpages_deps="perl makeinfo"
3240 doc_deps_any="manpages htmlpages podpages txtpages"
3241
3242 # default parameters
3243
3244 logfile="ffbuild/config.log"
3245
3246 # installation paths
3247 prefix_default="/usr/local"
3248 bindir_default='${prefix}/bin'
3249 datadir_default='${prefix}/share/ffmpeg'
3250 docdir_default='${prefix}/share/doc/ffmpeg'
3251 incdir_default='${prefix}/include'
3252 libdir_default='${prefix}/lib'
3253 mandir_default='${prefix}/share/man'
3254
3255 # toolchain
3256 ar_default="ar"
3257 cc_default="gcc"
3258 cxx_default="g++"
3259 host_cc_default="gcc"
3260 doxygen_default="doxygen"
3261 install="install"
3262 ln_s_default="ln -s -f"
3263 nm_default="nm -g"
3264 objformat="elf"
3265 pkg_config_default=pkg-config
3266 ranlib_default="ranlib"
3267 strip_default="strip"
3268 version_script='--version-script'
3269 yasmexe_default="yasm"
3270 windres_default="windres"
3271 nvcc_default="nvcc"
3272 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3273
3274 # OS
3275 target_os_default=$(tolower $(uname -s))
3276 host_os=$target_os_default
3277
3278 # machine
3279 if test "$target_os_default" = aix; then
3280     arch_default=$(uname -p)
3281     strip_default="strip -X32_64"
3282 else
3283     arch_default=$(uname -m)
3284 fi
3285 cpu="generic"
3286 intrinsics="none"
3287
3288 # configurable options
3289 enable $PROGRAM_LIST
3290 enable $DOCUMENT_LIST
3291 enable $EXAMPLE_LIST
3292 enable $(filter_out avresample $LIBRARY_LIST)
3293 enable stripping
3294
3295 enable asm
3296 enable debug
3297 enable doc
3298 enable faan faandct faanidct
3299 enable optimizations
3300 enable runtime_cpudetect
3301 enable safe_bitstream_reader
3302 enable static
3303 enable swscale_alpha
3304 enable valgrind_backtrace
3305
3306 sws_max_filter_size_default=256
3307 set_default sws_max_filter_size
3308
3309 # build settings
3310 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3311 LIBPREF="lib"
3312 LIBSUF=".a"
3313 FULLNAME='$(NAME)$(BUILDSUF)'
3314 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3315 SLIBPREF="lib"
3316 SLIBSUF=".so"
3317 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3318 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3319 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3320 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3321 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3322 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3323 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3324
3325 asflags_filter=echo
3326 cflags_filter=echo
3327 ldflags_filter=echo
3328
3329 AS_C='-c'
3330 AS_O='-o $@'
3331 CC_C='-c'
3332 CC_E='-E -o $@'
3333 CC_O='-o $@'
3334 CXX_C='-c'
3335 CXX_O='-o $@'
3336 OBJCC_C='-c'
3337 OBJCC_E='-E -o $@'
3338 OBJCC_O='-o $@'
3339 LD_O='-o $@'
3340 LD_LIB='-l%'
3341 LD_PATH='-L'
3342 HOSTCC_C='-c'
3343 HOSTCC_E='-E -o $@'
3344 HOSTCC_O='-o $@'
3345 HOSTLD_O='-o $@'
3346 NVCC_C='-c'
3347 NVCC_O='-o $@'
3348
3349 host_extralibs='-lm'
3350 host_cflags_filter=echo
3351 host_ldflags_filter=echo
3352
3353 target_path='$(CURDIR)'
3354
3355 # since the object filename is not given with the -MM flag, the compiler
3356 # is only able to print the basename, and we must add the path ourselves
3357 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3358 DEPFLAGS='-MM'
3359
3360 # find source path
3361 if test -f configure; then
3362     source_path=.
3363 else
3364     source_path=$(cd $(dirname "$0"); pwd)
3365     case "$source_path" in
3366         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3367     esac
3368     test -e "$source_path/config.h" &&
3369         die "Out of tree builds are impossible with config.h in source dir."
3370 fi
3371
3372 for v in "$@"; do
3373     r=${v#*=}
3374     l=${v%"$r"}
3375     r=$(sh_quote "$r")
3376     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3377 done
3378
3379 find_things(){
3380     thing=$1
3381     pattern=$2
3382     file=$source_path/$3
3383     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3384 }
3385
3386 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3387 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3388 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3389 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3390 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3391 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3392 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3393 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3394 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3395
3396 find_things_extern(){
3397     thing=$1
3398     pattern=$2
3399     file=$source_path/$3
3400     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3401 }
3402
3403 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3404 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3405
3406 ALL_COMPONENTS="
3407     $BSF_LIST
3408     $DECODER_LIST
3409     $DEMUXER_LIST
3410     $ENCODER_LIST
3411     $FILTER_LIST
3412     $HWACCEL_LIST
3413     $INDEV_LIST
3414     $MUXER_LIST
3415     $OUTDEV_LIST
3416     $PARSER_LIST
3417     $PROTOCOL_LIST
3418 "
3419
3420 for n in $COMPONENT_LIST; do
3421     v=$(toupper ${n%s})_LIST
3422     eval enable \$$v
3423     eval ${n}_if_any="\$$v"
3424 done
3425
3426 enable $ARCH_EXT_LIST
3427
3428 die_unknown(){
3429     echo "Unknown option \"$1\"."
3430     echo "See $0 --help for available options."
3431     exit 1
3432 }
3433
3434 print_in_columns() {
3435     cols=$(expr $ncols / 24)
3436     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3437 }
3438
3439 show_list() {
3440     suffix=_$1
3441     shift
3442     echo $* | sed s/$suffix//g | print_in_columns
3443     exit 0
3444 }
3445
3446 rand_list(){
3447     IFS=', '
3448     set -- $*
3449     unset IFS
3450     for thing; do
3451         comp=${thing%:*}
3452         prob=${thing#$comp}
3453         prob=${prob#:}
3454         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3455         echo "prob ${prob:-0.5}"
3456         printf '%s\n' $comp
3457     done
3458 }
3459
3460 do_random(){
3461     action=$1
3462     shift
3463     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3464     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3465 }
3466
3467 for opt do
3468     optval="${opt#*=}"
3469     case "$opt" in
3470         --extra-ldflags=*)
3471             add_ldflags $optval
3472         ;;
3473         --extra-ldexeflags=*)
3474             add_ldexeflags $optval
3475         ;;
3476         --extra-ldlibflags=*)
3477             add_ldlibflags $optval
3478         ;;
3479         --extra-libs=*)
3480             add_extralibs $optval
3481         ;;
3482         --disable-devices)
3483             disable $INDEV_LIST $OUTDEV_LIST
3484         ;;
3485         --enable-debug=*)
3486             debuglevel="$optval"
3487         ;;
3488         --disable-programs)
3489             disable $PROGRAM_LIST
3490         ;;
3491         --disable-everything)
3492             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3493         ;;
3494         --disable-all)
3495             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3496             disable $LIBRARY_LIST $PROGRAM_LIST doc
3497             enable avutil
3498         ;;
3499         --enable-random|--disable-random)
3500             action=${opt%%-random}
3501             do_random ${action#--} $COMPONENT_LIST
3502         ;;
3503         --enable-random=*|--disable-random=*)
3504             action=${opt%%-random=*}
3505             do_random ${action#--} $optval
3506         ;;
3507         --enable-*=*|--disable-*=*)
3508             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3509             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3510             eval list=\$$(toupper $thing)_LIST
3511             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3512             list=$(filter "$name" $list)
3513             [ "$list" = "" ] && warn "Option $opt did not match anything"
3514             $action $list
3515         ;;
3516         --enable-?*|--disable-?*)
3517             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3518             if is_in $option $COMPONENT_LIST; then
3519                 test $action = disable && action=unset
3520                 eval $action \$$(toupper ${option%s})_LIST
3521             elif is_in $option $CMDLINE_SELECT; then
3522                 $action $option
3523             else
3524                 die_unknown $opt
3525             fi
3526         ;;
3527         --list-*)
3528             NAME="${opt#--list-}"
3529             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3530             NAME=${NAME%s}
3531             eval show_list $NAME \$$(toupper $NAME)_LIST
3532         ;;
3533         --help|-h) show_help
3534         ;;
3535         --quiet|-q) quiet=yes
3536         ;;
3537         --fatal-warnings) enable fatal_warnings
3538         ;;
3539         --libfuzzer=*)
3540             libfuzzer_path="$optval"
3541         ;;
3542         *)
3543             optname="${opt%%=*}"
3544             optname="${optname#--}"
3545             optname=$(echo "$optname" | sed 's/-/_/g')
3546             if is_in $optname $CMDLINE_SET; then
3547                 eval $optname='$optval'
3548             elif is_in $optname $CMDLINE_APPEND; then
3549                 append $optname "$optval"
3550             else
3551                 die_unknown $opt
3552             fi
3553         ;;
3554     esac
3555 done
3556
3557 for e in $env; do
3558     eval "export $e"
3559 done
3560
3561 # Mark specifically enabled, but normally autodetected libraries as requested.
3562 for lib in $AUTODETECT_LIBS; do
3563     enabled $lib && request $lib
3564 done
3565
3566 # Enable platform codecs by default.
3567 enable_weak audiotoolbox
3568
3569 # Enable hwaccels by default.
3570 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3571 enable_weak xlib
3572
3573 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3574
3575 disabled logging && logfile=/dev/null
3576
3577 die_license_disabled() {
3578     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3579 }
3580
3581 die_license_disabled_gpl() {
3582     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3583 }
3584
3585 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3586 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3587
3588 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3589 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3590
3591 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3592
3593 # Disable all the library-specific components if the library itself
3594 # is disabled, see AVCODEC_LIST and following _LIST variables.
3595
3596 disable_components(){
3597     disabled ${1} && disable $(
3598         eval components="\$$(toupper ${1})_COMPONENTS"
3599         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3600     )
3601 }
3602
3603 map 'disable_components $v' $LIBRARY_LIST
3604
3605 mkdir -p ffbuild
3606 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3607 set >> $logfile
3608
3609 test -n "$valgrind" && toolchain="valgrind-memcheck"
3610
3611 enabled ossfuzz && {
3612     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3613     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3614 }
3615
3616 case "$toolchain" in
3617     *-asan)
3618         cc_default="${toolchain%-asan}"
3619         add_cflags  -fsanitize=address
3620         add_ldflags -fsanitize=address
3621     ;;
3622     *-msan)
3623         cc_default="${toolchain%-msan}"
3624         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3625         add_ldflags -fsanitize=memory
3626     ;;
3627     *-tsan)
3628         cc_default="${toolchain%-tsan}"
3629         add_cflags  -fsanitize=thread -fPIE
3630         add_ldflags -fsanitize=thread -pie
3631         case "$toolchain" in
3632             gcc-tsan)
3633                 add_cflags  -fPIC
3634                 add_ldflags -fPIC
3635                 ;;
3636         esac
3637     ;;
3638     *-usan)
3639         cc_default="${toolchain%-usan}"
3640         add_cflags  -fsanitize=undefined
3641         add_ldflags -fsanitize=undefined
3642     ;;
3643     valgrind-*)
3644         target_exec_default="valgrind"
3645         case "$toolchain" in
3646             valgrind-massif)
3647                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3648                 ;;
3649             valgrind-memcheck)
3650                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3651                 ;;
3652         esac
3653     ;;
3654     msvc)
3655         # Check whether the current MSVC version needs the C99 converter.
3656         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3657         # support enough of C99 to build ffmpeg. Default to the new
3658         # behaviour if the regexp was unable to match anything, since this
3659         # successfully parses the version number of existing supported
3660         # versions that require the converter (MSVC 2010 and 2012).
3661         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3662         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3663             cc_default="cl"
3664             cxx_default="cl"
3665         else
3666             cc_default="c99wrap cl"
3667             cxx_default="c99wrap cl"
3668         fi
3669         ld_default="$source_path/compat/windows/mslink"
3670         nm_default="dumpbin -symbols"
3671         ar_default="lib"
3672         case "$arch" in
3673         arm*)
3674             as_default="armasm"
3675             ;;
3676         esac
3677         target_os_default="win32"
3678         # Use a relative path for TMPDIR. This makes sure all the
3679         # ffconf temp files are written with a relative path, avoiding
3680         # issues with msys/win32 path conversion for MSVC parameters
3681         # such as -Fo<file> or -out:<file>.
3682         TMPDIR=.
3683     ;;
3684     icl)
3685         cc_default="icl"
3686         ld_default="xilink"
3687         nm_default="dumpbin -symbols"
3688         ar_default="xilib"
3689         target_os_default="win32"
3690         TMPDIR=.
3691     ;;
3692     gcov)
3693         add_cflags  -fprofile-arcs -ftest-coverage
3694         add_ldflags -fprofile-arcs -ftest-coverage
3695     ;;
3696     llvm-cov)
3697         add_cflags -fprofile-arcs -ftest-coverage
3698         add_ldflags --coverage
3699     ;;
3700     hardened)
3701         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3702         add_cflags   -fno-strict-overflow -fstack-protector-all
3703         add_ldflags  -Wl,-z,relro -Wl,-z,now
3704         add_cflags   -fPIE
3705         add_ldexeflags -fPIE -pie
3706     ;;
3707     ?*)
3708         die "Unknown toolchain $toolchain"
3709     ;;
3710 esac
3711
3712 test -n "$cross_prefix" && enable cross_compile
3713
3714 if enabled cross_compile; then
3715     test -n "$arch" && test -n "$target_os" ||
3716         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3717 fi
3718
3719 ar_default="${cross_prefix}${ar_default}"
3720 cc_default="${cross_prefix}${cc_default}"
3721 cxx_default="${cross_prefix}${cxx_default}"
3722 nm_default="${cross_prefix}${nm_default}"
3723 pkg_config_default="${cross_prefix}${pkg_config_default}"
3724 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3725     ranlib_default="${cross_prefix}${ranlib_default} -D"
3726 else
3727     ranlib_default="${cross_prefix}${ranlib_default}"
3728 fi
3729 strip_default="${cross_prefix}${strip_default}"
3730 windres_default="${cross_prefix}${windres_default}"
3731
3732 sysinclude_default="${sysroot}/usr/include"
3733
3734 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3735     target_exec target_os yasmexe nvcc
3736 enabled cross_compile || host_cc_default=$cc
3737 set_default host_cc
3738
3739 pkg_config_fail_message=""
3740 if ! $pkg_config --version >/dev/null 2>&1; then
3741     warn "$pkg_config not found, library detection may fail."
3742     pkg_config=false
3743 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3744     pkg_config_fail_message="
3745 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3746 fi
3747
3748 if test $doxygen != $doxygen_default && \
3749   ! $doxygen --version >/dev/null 2>&1; then
3750     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3751 fi
3752
3753 exesuf() {
3754     case $1 in
3755         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3756     esac
3757 }
3758
3759 EXESUF=$(exesuf $target_os)
3760 HOSTEXESUF=$(exesuf $host_os)
3761
3762 # set temporary file name
3763 : ${TMPDIR:=$TEMPDIR}
3764 : ${TMPDIR:=$TMP}
3765 : ${TMPDIR:=/tmp}
3766
3767 if [ -n "$tempprefix" ] ; then
3768     mktemp(){
3769         echo $tempprefix.${HOSTNAME}.${UID}
3770     }
3771 elif ! check_cmd mktemp -u XXXXXX; then
3772     # simple replacement for missing mktemp
3773     # NOT SAFE FOR GENERAL USE
3774     mktemp(){
3775         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3776     }
3777 fi
3778
3779 tmpfile(){
3780     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3781         (set -C; exec > $tmp) 2>/dev/null ||
3782         die "Unable to create temporary file in $TMPDIR."
3783     append TMPFILES $tmp
3784     eval $1=$tmp
3785 }
3786
3787 trap 'rm -f -- $TMPFILES' EXIT
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             -std=c99)             ;;
3866             # Common flags
3867             -fomit-frame-pointer) ;;
3868             -g)                   echo -Z7 ;;
3869             -fno-math-errno)      ;;
3870             -fno-common)          ;;
3871             -fno-signed-zeros)    ;;
3872             -fPIC)                ;;
3873             -mthumb)              ;;
3874             -march=*)             ;;
3875             -lz)                  echo zlib.lib ;;
3876             -lx264)               echo libx264.lib ;;
3877             -lstdc++)             ;;
3878             -l*)                  echo ${flag#-l}.lib ;;
3879             -LARGEADDRESSAWARE)   echo $flag ;;
3880             -L*)                  echo -libpath:${flag#-L} ;;
3881             *)                    echo $flag ;;
3882         esac
3883     done
3884 }
3885
3886 msvc_flags(){
3887     msvc_common_flags "$@"
3888     for flag; do
3889         case $flag in
3890             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3891                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3892                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3893                                        -wd4307 \
3894                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3895         esac
3896     done
3897 }
3898
3899 icl_flags(){
3900     msvc_common_flags "$@"
3901     for flag; do
3902         case $flag in
3903             # Despite what Intel's documentation says -Wall, which is supported
3904             # on Windows, does enable remarks so disable them here.
3905             -Wall)                echo $flag -Qdiag-disable:remark ;;
3906             -std=c99)             echo -Qstd=c99 ;;
3907             -flto)                echo -ipo ;;
3908         esac
3909     done
3910 }
3911
3912 icc_flags(){
3913     for flag; do
3914         case $flag in
3915             -flto)                echo -ipo ;;
3916             *)                    echo $flag ;;
3917         esac
3918     done
3919 }
3920
3921 pgi_flags(){
3922     for flag; do
3923         case $flag in
3924             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3925             -fomit-frame-pointer) echo -Mnoframe ;;
3926             -g)                   echo -gopt ;;
3927             *)                    echo $flag ;;
3928         esac
3929     done
3930 }
3931
3932 suncc_flags(){
3933     for flag; do
3934         case $flag in
3935             -march=*|-mcpu=*)
3936                 case "${flag#*=}" in
3937                     native)                   echo -xtarget=native       ;;
3938                     v9|niagara)               echo -xarch=sparc          ;;
3939                     ultrasparc)               echo -xarch=sparcvis       ;;
3940                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3941                     i586|pentium)             echo -xchip=pentium        ;;
3942                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3943                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3944                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3945                     pentium4*)          echo -xtarget=pentium4           ;;
3946                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3947                     *-sse3)             echo -xarch=sse3                 ;;
3948                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3949                     bonnell)                   echo -xarch=ssse3         ;;
3950                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3951                     westmere)                  echo -xtarget=westmere    ;;
3952                     silvermont)                echo -xarch=sse4_2        ;;
3953                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3954                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3955                                                echo -xarch=avx           ;;
3956                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3957                     btver1)                    echo -xarch=amdsse4a      ;;
3958                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3959                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3960                     k8|opteron|athlon64|athlon-fx)
3961                                                echo -xarch=sse2a         ;;
3962                     athlon*)                   echo -xarch=pentium_proa  ;;
3963                 esac
3964                 ;;
3965             -std=c99)             echo -xc99              ;;
3966             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3967             -fPIC)                echo -KPIC -xcode=pic32 ;;
3968             -W*,*)                echo $flag              ;;
3969             -f*-*|-W*|-mimpure-text)                      ;;
3970             -shared)              echo -G                 ;;
3971             *)                    echo $flag              ;;
3972         esac
3973     done
3974 }
3975
3976 tms470_flags(){
3977     for flag; do
3978         case $flag in
3979             -march=*|-mcpu=*)
3980                 case "${flag#*=}" in
3981                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3982                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3983                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3984                     armv6*|arm11*)          echo -mv=6   ;;
3985                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3986                                             echo -mv=5e  ;;
3987                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3988                 esac
3989                 ;;
3990             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3991             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3992             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3993             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3994             -msoft-float)   echo --float_support=vfplib       ;;
3995             -O[0-3]|-mf=*)  echo $flag                        ;;
3996             -g)             echo -g -mn                       ;;
3997             -pds=*)         echo $flag                        ;;
3998             -D*|-I*)        echo $flag                        ;;
3999             --gcc|--abi=*)  echo $flag                        ;;
4000             -me)            echo $flag                        ;;
4001         esac
4002     done
4003 }
4004
4005 probe_cc(){
4006     pfx=$1
4007     _cc=$2
4008     first=$3
4009
4010     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4011     unset _ld_o _ldflags _ld_lib _ld_path
4012     unset _depflags _DEPCMD _DEPFLAGS
4013     _flags_filter=echo
4014
4015     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4016         true # no-op to avoid reading stdin in following checks
4017     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4018         _type=llvm_gcc
4019         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4020         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4021         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4022         _cflags_speed='-O3'
4023         _cflags_size='-Os'
4024     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4025         _type=gcc
4026         gcc_version=$($_cc --version | head -n1)
4027         gcc_basever=$($_cc -dumpversion)
4028         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4029         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4030         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4031         case $gcc_basever in
4032             2) ;;
4033             2.*) ;;
4034             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4035         esac
4036         if [ "$first" = true ]; then
4037             case $gcc_basever in
4038                 4.2*)
4039                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4040             esac
4041         fi
4042         _cflags_speed='-O3'
4043         _cflags_size='-Os'
4044     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4045         _type=icc
4046         _ident=$($_cc --version | head -n1)
4047         _depflags='-MMD'
4048         _cflags_speed='-O3'
4049         _cflags_size='-Os'
4050         _cflags_noopt='-O1'
4051         _flags_filter=icc_flags
4052     elif $_cc -v 2>&1 | grep -q xlc; then
4053         _type=xlc
4054         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4055         _cflags_speed='-O5'
4056         _cflags_size='-O5 -qcompact'
4057     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4058         _type=ccc
4059         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4060         _DEPFLAGS='-M'
4061         _cflags_speed='-fast'
4062         _cflags_size='-O1'
4063         _flags_filter=ccc_flags
4064     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4065         test -d "$sysroot" || die "No valid sysroot specified."
4066         _type=armcc
4067         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4068         armcc_conf="$PWD/armcc.conf"
4069         $_cc --arm_linux_configure                 \
4070              --arm_linux_config_file="$armcc_conf" \
4071              --configure_sysroot="$sysroot"        \
4072              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4073              die "Error creating armcc configuration file."
4074         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4075         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4076         as_default="${cross_prefix}gcc"
4077         _depflags='-MMD'
4078         _cflags_speed='-O3'
4079         _cflags_size='-Os'
4080     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4081         _type=tms470
4082         _ident=$($_cc -version | head -n1 | tr -s ' ')
4083         _flags='--gcc --abi=eabi -me'
4084         _cc_e='-ppl -fe=$@'
4085         _cc_o='-fe=$@'
4086         _depflags='-ppa -ppd=$(@:.o=.d)'
4087         _cflags_speed='-O3 -mf=5'
4088         _cflags_size='-O3 -mf=2'
4089         _flags_filter=tms470_flags
4090     elif $_cc -v 2>&1 | grep -q clang; then
4091         _type=clang
4092         _ident=$($_cc --version 2>/dev/null | head -n1)
4093         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4094         _cflags_speed='-O3'
4095         _cflags_size='-Oz'
4096     elif $_cc -V 2>&1 | grep -q Sun; then
4097         _type=suncc
4098         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4099         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4100         _DEPFLAGS='-xM1 -xc99'
4101         _ldflags='-std=c99'
4102         _cflags_speed='-O5'
4103         _cflags_size='-O5 -xspace'
4104         _flags_filter=suncc_flags
4105     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4106         _type=pathscale
4107         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4108         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4109         _cflags_speed='-O2'
4110         _cflags_size='-Os'
4111         _flags_filter='filter_out -Wdisabled-optimization'
4112     elif $_cc -v 2>&1 | grep -q Open64; then
4113         _type=open64
4114         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4115         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4116         _cflags_speed='-O2'
4117         _cflags_size='-Os'
4118         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4119     elif $_cc -V 2>&1 | grep -q Portland; then
4120         _type=pgi
4121         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4122         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4123         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4124         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4125         _cflags_noopt="-O"
4126         _flags_filter=pgi_flags
4127     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4128         _type=armasm
4129         _ident=$($_cc | head -n1)
4130         # 4509: "This form of conditional instruction is deprecated"
4131         _flags="-nologo -ignore 4509"
4132         _flags_filter=armasm_flags
4133     elif $_cc 2>&1 | grep -q Intel; then
4134         _type=icl
4135         _ident=$($_cc 2>&1 | head -n1)
4136         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4137         # Not only is O3 broken on 13.x+ but it is slower on all previous
4138         # versions (tested) as well.
4139         _cflags_speed="-O2"
4140         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4141         if $_cc 2>&1 | grep -q Linker; then
4142             _ld_o='-out:$@'
4143         else
4144             _ld_o='-Fe$@'
4145         fi
4146         _cc_o='-Fo$@'
4147         _cc_e='-P'
4148         _flags_filter=icl_flags
4149         _ld_lib='lib%.a'
4150         _ld_path='-libpath:'
4151         # -Qdiag-error to make icl error when seeing certain unknown arguments
4152         _flags='-nologo -Qdiag-error:4044,10157'
4153         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4154         # with MSVC which enables it by default.
4155         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4156         disable stripping
4157     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4158         # lld can emulate multiple different linkers; in ms link.exe mode,
4159         # the -? parameter gives the help output which contains an identifyable
4160         # string, while it gives an error in other modes.
4161         _type=lld-link
4162         # The link.exe mode doesn't have a switch for getting the version,
4163         # but we can force it back to gnu mode and get the version from there.
4164         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4165         _ld_o='-out:$@'
4166         _flags_filter=msvc_flags
4167         _ld_lib='lib%.a'
4168         _ld_path='-libpath:'
4169     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4170         _type=msvc
4171         _ident=$($_cc 2>&1 | head -n1)
4172         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4173         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4174         _cflags_speed="-O2"
4175         _cflags_size="-O1"
4176         _cflags_noopt="-O1"
4177         if $_cc -nologo- 2>&1 | grep -q Linker; then
4178             _ld_o='-out:$@'
4179         else
4180             _ld_o='-Fe$@'
4181         fi
4182         _cc_o='-Fo$@'
4183         _cc_e='-P -Fi$@'
4184         _flags_filter=msvc_flags
4185         _ld_lib='lib%.a'
4186         _ld_path='-libpath:'
4187         _flags='-nologo'
4188         disable stripping
4189     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4190         _type=cparser
4191         _ident=$($_cc --version | head -n1)
4192         _depflags='-MMD'
4193         _cflags_speed='-O4'
4194         _cflags_size='-O2'
4195         _flags_filter=cparser_flags
4196     fi
4197
4198     eval ${pfx}_type=\$_type
4199     eval ${pfx}_ident=\$_ident
4200 }
4201
4202 set_ccvars(){
4203     eval ${1}_C=\${_cc_c-\${${1}_C}}
4204     eval ${1}_E=\${_cc_e-\${${1}_E}}
4205     eval ${1}_O=\${_cc_o-\${${1}_O}}
4206
4207     if [ -n "$_depflags" ]; then
4208         eval ${1}_DEPFLAGS=\$_depflags
4209     else
4210         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4211         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4212         eval DEP${1}FLAGS=\$_flags
4213     fi
4214 }
4215
4216 probe_cc cc "$cc" "true"
4217 cflags_filter=$_flags_filter
4218 cflags_speed=$_cflags_speed
4219 cflags_size=$_cflags_size
4220 cflags_noopt=$_cflags_noopt
4221 add_cflags $_flags $_cflags
4222 cc_ldflags=$_ldflags
4223 set_ccvars CC
4224 set_ccvars CXX
4225
4226 probe_cc hostcc "$host_cc"
4227 host_cflags_filter=$_flags_filter
4228 add_host_cflags  $_flags $_cflags
4229 set_ccvars HOSTCC
4230
4231 test -n "$cc_type" && enable $cc_type ||
4232     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4233
4234 : ${as_default:=$cc}
4235 : ${objcc_default:=$cc}
4236 : ${dep_cc_default:=$cc}
4237 : ${ld_default:=$cc}
4238 : ${host_ld_default:=$host_cc}
4239 set_default ar as objcc dep_cc ld ln_s host_ld windres
4240
4241 probe_cc as "$as"
4242 asflags_filter=$_flags_filter
4243 add_asflags $_flags $_cflags
4244 set_ccvars AS
4245
4246 probe_cc objcc "$objcc"
4247 objcflags_filter=$_flags_filter
4248 add_objcflags $_flags $_cflags
4249 set_ccvars OBJC
4250
4251 probe_cc ld "$ld"
4252 ldflags_filter=$_flags_filter
4253 add_ldflags $_flags $_ldflags
4254 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4255 LD_O=${_ld_o-$LD_O}
4256 LD_LIB=${_ld_lib-$LD_LIB}
4257 LD_PATH=${_ld_path-$LD_PATH}
4258
4259 probe_cc hostld "$host_ld"
4260 host_ldflags_filter=$_flags_filter
4261 add_host_ldflags $_flags $_ldflags
4262 HOSTLD_O=${_ld_o-$HOSTLD_O}
4263
4264 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4265     probe_cc depcc "$dep_cc"
4266     CCDEP=${_DEPCMD:-$DEPCMD}
4267     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4268     DEPCCFLAGS=$_flags
4269 fi
4270
4271 if $ar 2>&1 | grep -q Microsoft; then
4272     arflags="-nologo"
4273     ar_o='-out:$@'
4274 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4275     arflags="rq"
4276     ar_o='$@'
4277 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4278     arflags='-Xany -r -c'
4279     ar_o='$@'
4280 elif $ar 2>&1 | grep -q "\[D\] "; then
4281     arflags="rcD"
4282     ar_o='$@'
4283 else
4284     arflags="rc"
4285     ar_o='$@'
4286 fi
4287
4288 add_cflags $extra_cflags
4289 add_cxxflags $extra_cxxflags
4290 add_objcflags $extra_objcflags
4291 add_asflags $extra_cflags
4292
4293 if test -n "$sysroot"; then
4294     case "$cc_type" in
4295         gcc|llvm_gcc|clang)
4296             add_cppflags --sysroot="$sysroot"
4297             add_ldflags --sysroot="$sysroot"
4298 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4299             add_cppflags -isysroot "$sysroot"
4300             add_ldflags -isysroot "$sysroot"
4301         ;;
4302         tms470)
4303             add_cppflags -I"$sysinclude"
4304             add_ldflags  --sysroot="$sysroot"
4305         ;;
4306     esac
4307 fi
4308
4309 if test "$cpu" = host; then
4310     enabled cross_compile &&
4311         die "--cpu=host makes no sense when cross-compiling."
4312
4313     case "$cc_type" in
4314         gcc|llvm_gcc)
4315             check_native(){
4316                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4317                 sed -n "/cc1.*$1=/{
4318                             s/.*$1=\\([^ ]*\\).*/\\1/
4319                             p
4320                             q
4321                         }" $TMPE
4322             }
4323             cpu=$(check_native -march || check_native -mcpu)
4324         ;;
4325         clang)
4326             check_native(){
4327                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4328                 sed -n "/cc1.*-target-cpu /{
4329                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4330                             p
4331                             q
4332                         }" $TMPE
4333             }
4334             cpu=$(check_native -march)
4335         ;;
4336     esac
4337
4338     test "${cpu:-host}" = host &&
4339         die "--cpu=host not supported with compiler $cc"
4340 fi
4341
4342 # Deal with common $arch aliases
4343 case "$arch" in
4344     aarch64|arm64)
4345         arch="aarch64"
4346     ;;
4347     arm*|iPad*|iPhone*)
4348         arch="arm"
4349     ;;
4350     mips*|IP*)
4351         case "$arch" in
4352         *el)
4353             add_cppflags -EL
4354             add_ldflags -EL
4355         ;;
4356         *eb)
4357             add_cppflags -EB
4358             add_ldflags -EB
4359         ;;
4360         esac
4361         arch="mips"
4362     ;;
4363     parisc*|hppa*)
4364         arch="parisc"
4365     ;;
4366     "Power Macintosh"|ppc*|powerpc*)
4367         arch="ppc"
4368     ;;
4369     s390|s390x)
4370         arch="s390"
4371     ;;
4372     sh4|sh)
4373         arch="sh4"
4374     ;;
4375     sun4*|sparc*)
4376         arch="sparc"
4377     ;;
4378     tilegx|tile-gx)
4379         arch="tilegx"
4380     ;;
4381     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4382         arch="x86"
4383     ;;
4384 esac
4385
4386 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4387 enable $arch
4388
4389 # Add processor-specific flags
4390 if enabled aarch64; then
4391
4392     case $cpu in
4393         armv*)
4394             cpuflags="-march=$cpu"
4395         ;;
4396         *)
4397             cpuflags="-mcpu=$cpu"
4398         ;;
4399     esac
4400
4401 elif enabled alpha; then
4402
4403     cpuflags="-mcpu=$cpu"
4404
4405 elif enabled arm; then
4406
4407     check_arm_arch() {
4408         check_cpp_condition stddef.h \
4409             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4410             $cpuflags
4411     }
4412
4413     probe_arm_arch() {
4414         if   check_arm_arch 4;        then echo armv4
4415         elif check_arm_arch 4T;       then echo armv4t
4416         elif check_arm_arch 5;        then echo armv5
4417         elif check_arm_arch 5E;       then echo armv5e
4418         elif check_arm_arch 5T;       then echo armv5t
4419         elif check_arm_arch 5TE;      then echo armv5te
4420         elif check_arm_arch 5TEJ;     then echo armv5te
4421         elif check_arm_arch 6;        then echo armv6
4422         elif check_arm_arch 6J;       then echo armv6j
4423         elif check_arm_arch 6K;       then echo armv6k
4424         elif check_arm_arch 6Z;       then echo armv6z
4425         elif check_arm_arch 6ZK;      then echo armv6zk
4426         elif check_arm_arch 6T2;      then echo armv6t2
4427         elif check_arm_arch 7;        then echo armv7
4428         elif check_arm_arch 7A  7_A;  then echo armv7-a
4429         elif check_arm_arch 7S;       then echo armv7-a
4430         elif check_arm_arch 7R  7_R;  then echo armv7-r
4431         elif check_arm_arch 7M  7_M;  then echo armv7-m
4432         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4433         elif check_arm_arch 8A  8_A;  then echo armv8-a
4434         fi
4435     }
4436
4437     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4438
4439     case $cpu in
4440         armv*)
4441             cpuflags="-march=$cpu"
4442             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4443         ;;
4444         *)
4445             cpuflags="-mcpu=$cpu"
4446             case $cpu in
4447                 cortex-a*)                               subarch=armv7a  ;;
4448                 cortex-r*)                               subarch=armv7r  ;;
4449                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4450                 arm11*)                                  subarch=armv6   ;;
4451                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4452                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4453                 *)                             subarch=$(probe_arm_arch) ;;
4454             esac
4455         ;;
4456     esac
4457
4458     case "$subarch" in
4459         armv5t*)    enable fast_clz                ;;
4460         armv[6-8]*)
4461             enable fast_clz
4462             disabled fast_unaligned || enable fast_unaligned
4463             ;;
4464     esac
4465
4466 elif enabled avr32; then
4467
4468     case $cpu in
4469         ap7[02]0[0-2])
4470             subarch="avr32_ap"
4471             cpuflags="-mpart=$cpu"
4472         ;;
4473         ap)
4474             subarch="avr32_ap"
4475             cpuflags="-march=$cpu"
4476         ;;
4477         uc3[ab]*)
4478             subarch="avr32_uc"
4479             cpuflags="-mcpu=$cpu"
4480         ;;
4481         uc)
4482             subarch="avr32_uc"
4483             cpuflags="-march=$cpu"
4484         ;;
4485     esac
4486
4487 elif enabled bfin; then
4488
4489     cpuflags="-mcpu=$cpu"
4490
4491 elif enabled mips; then
4492
4493     cpuflags="-march=$cpu"
4494
4495     if [ "$cpu" != "generic" ]; then
4496         disable mips32r2
4497         disable mips32r5
4498         disable mips64r2
4499         disable mips32r6
4500         disable mips64r6
4501         disable loongson2
4502         disable loongson3
4503
4504         case $cpu in
4505             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4506                 enable mips32r2
4507                 disable msa
4508             ;;
4509             p5600|i6400|p6600)
4510                 disable mipsdsp
4511                 disable mipsdspr2
4512             ;;
4513             loongson*)
4514                 enable loongson2
4515                 enable loongson3
4516                 enable local_aligned_8 local_aligned_16 local_aligned_32
4517                 enable simd_align_16
4518                 enable fast_64bit
4519                 enable fast_clz
4520                 enable fast_cmov
4521                 enable fast_unaligned
4522                 disable aligned_stack
4523                 disable mipsfpu
4524                 disable mipsdsp
4525                 disable mipsdspr2
4526                 case $cpu in
4527                     loongson3*)
4528                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4529                     ;;
4530                     loongson2e)
4531                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4532                     ;;
4533                     loongson2f)
4534                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4535                     ;;
4536                 esac
4537             ;;
4538             *)
4539                 # Unknown CPU. Disable everything.
4540                 warn "unknown CPU. Disabling all MIPS optimizations."
4541                 disable mipsfpu
4542                 disable mipsdsp
4543                 disable mipsdspr2
4544                 disable msa
4545                 disable mmi
4546             ;;
4547         esac
4548
4549         case $cpu in
4550             24kc)
4551                 disable mipsfpu
4552                 disable mipsdsp
4553                 disable mipsdspr2
4554             ;;
4555             24kf*)
4556                 disable mipsdsp
4557                 disable mipsdspr2
4558             ;;
4559             24kec|34kc|1004kc)
4560                 disable mipsfpu
4561                 disable mipsdspr2
4562             ;;
4563             24kef*|34kf*|1004kf*)
4564                 disable mipsdspr2
4565             ;;
4566             74kc)
4567                 disable mipsfpu
4568             ;;
4569             p5600)
4570                 enable mips32r5
4571                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4572             ;;
4573             i6400)
4574                 enable mips64r6
4575                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4576             ;;
4577             p6600)
4578                 enable mips64r6
4579                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4580             ;;
4581         esac
4582     else
4583         # We do not disable anything. Is up to the user to disable the unwanted features.
4584         warn 'generic cpu selected'
4585     fi
4586
4587 elif enabled ppc; then
4588
4589     disable ldbrx
4590
4591     case $(tolower $cpu) in
4592         601|ppc601|powerpc601)
4593             cpuflags="-mcpu=601"
4594             disable altivec
4595         ;;
4596         603*|ppc603*|powerpc603*)
4597             cpuflags="-mcpu=603"
4598             disable altivec
4599         ;;
4600         604*|ppc604*|powerpc604*)
4601             cpuflags="-mcpu=604"
4602             disable altivec
4603         ;;
4604         g3|75*|ppc75*|powerpc75*)
4605             cpuflags="-mcpu=750"
4606             disable altivec
4607         ;;
4608         g4|745*|ppc745*|powerpc745*)
4609             cpuflags="-mcpu=7450"
4610             disable vsx
4611         ;;
4612         74*|ppc74*|powerpc74*)
4613             cpuflags="-mcpu=7400"
4614             disable vsx
4615         ;;
4616         g5|970|ppc970|powerpc970)
4617             cpuflags="-mcpu=970"
4618             disable vsx
4619         ;;
4620         power[3-6]*)
4621             cpuflags="-mcpu=$cpu"
4622             disable vsx
4623         ;;
4624         power[7-8]*)
4625             cpuflags="-mcpu=$cpu"
4626         ;;
4627         cell)
4628             cpuflags="-mcpu=cell"
4629             enable ldbrx
4630             disable vsx
4631         ;;
4632         e500mc)
4633             cpuflags="-mcpu=e500mc"
4634             disable altivec
4635         ;;
4636         e500v2)
4637             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4638             disable altivec
4639             disable dcbzl
4640         ;;
4641         e500)
4642             cpuflags="-mcpu=8540 -mhard-float"
4643             disable altivec
4644             disable dcbzl
4645         ;;
4646     esac
4647
4648 elif enabled sparc; then
4649
4650     case $cpu in
4651         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4652             cpuflags="-mcpu=$cpu"
4653         ;;
4654         ultrasparc*|niagara[234])
4655             cpuflags="-mcpu=$cpu"
4656         ;;
4657     esac
4658
4659 elif enabled x86; then
4660
4661     case $cpu in
4662         i[345]86|pentium)
4663             cpuflags="-march=$cpu"
4664             disable i686
4665             disable mmx
4666         ;;
4667         # targets that do NOT support nopl and conditional mov (cmov)
4668         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4669             cpuflags="-march=$cpu"
4670             disable i686
4671         ;;
4672         # targets that do support nopl and conditional mov (cmov)
4673         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4674         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4675         |amdfam10|barcelona|b[dt]ver*|znver*)
4676             cpuflags="-march=$cpu"
4677             enable i686
4678             enable fast_cmov
4679         ;;
4680         # targets that do support conditional mov but on which it's slow
4681         pentium4|pentium4m|prescott|nocona)
4682             cpuflags="-march=$cpu"
4683             enable i686
4684             disable fast_cmov
4685         ;;
4686     esac
4687
4688 fi
4689
4690 if [ "$cpu" != generic ]; then
4691     add_cflags  $cpuflags
4692     add_asflags $cpuflags
4693     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4694 fi
4695
4696 # compiler sanity check
4697 check_exec <<EOF
4698 int main(void){ return 0; }
4699 EOF
4700 if test "$?" != 0; then
4701     echo "$cc is unable to create an executable file."
4702     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4703         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4704         echo "Only do this if you know what cross compiling means."
4705     fi
4706     die "C compiler test failed."
4707 fi
4708
4709 add_cppflags -D_ISOC99_SOURCE
4710 add_cxxflags -D__STDC_CONSTANT_MACROS
4711 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4712
4713 # some compilers silently accept -std=c11, so we also need to check that the
4714 # version macro is defined properly
4715 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4716     add_cflags -std=c11
4717 else
4718     check_cflags -std=c99
4719 fi
4720
4721 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4722 #include <stdlib.h>
4723 EOF
4724 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4725 #include <stdlib.h>
4726 EOF
4727
4728 add_host_cppflags -D_ISOC99_SOURCE
4729 check_host_cflags -std=c99
4730 check_host_cflags -Wall
4731 check_host_cflags -O3
4732
4733 check_64bit(){
4734     arch32=$1
4735     arch64=$2
4736     expr=$3
4737     check_code cc "" "int test[2*($expr) - 1]" &&
4738         subarch=$arch64 || subarch=$arch32
4739 }
4740
4741 case "$arch" in
4742     aarch64|alpha|ia64)
4743         spic=$shared
4744     ;;
4745     mips)
4746         check_64bit mips mips64 '_MIPS_SIM > 1'
4747         spic=$shared
4748     ;;
4749     parisc)
4750         check_64bit parisc parisc64 'sizeof(void *) > 4'
4751         spic=$shared
4752     ;;
4753     ppc)
4754         check_64bit ppc ppc64 'sizeof(void *) > 4'
4755         spic=$shared
4756     ;;
4757     s390)
4758         check_64bit s390 s390x 'sizeof(void *) > 4'
4759         spic=$shared
4760     ;;
4761     sparc)
4762         check_64bit sparc sparc64 'sizeof(void *) > 4'
4763         spic=$shared
4764     ;;
4765     x86)
4766         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4767         # Treat x32 as x64 for now. Note it also needs spic=$shared
4768         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4769             subarch=x86_64
4770         if test "$subarch" = "x86_64"; then
4771             spic=$shared
4772         fi
4773     ;;
4774     ppc)
4775         check_cc <<EOF && subarch="ppc64"
4776         int test[(int)sizeof(char*) - 7];
4777 EOF
4778     ;;
4779 esac
4780
4781 enable $subarch
4782 enabled spic && enable_weak pic
4783
4784 # OS specific
4785 case $target_os in
4786     aix)
4787         SHFLAGS=-shared
4788         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4789         enabled shared && add_ldflags -Wl,-brtl
4790         ;;
4791     android)
4792         disable symver
4793         enable section_data_rel_ro
4794         SLIB_INSTALL_NAME='$(SLIBNAME)'
4795         SLIB_INSTALL_LINKS=
4796         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4797         ;;
4798     haiku)
4799         prefix_default="/boot/common"
4800         network_extralibs="-lnetwork"
4801         host_extralibs=
4802         ;;
4803     sunos)
4804         SHFLAGS='-shared -Wl,-h,$$(@F)'
4805         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4806         network_extralibs="-lsocket -lnsl"
4807         add_cppflags -D__EXTENSIONS__
4808         # When using suncc to build, the Solaris linker will mark
4809         # an executable with each instruction set encountered by
4810         # the Solaris assembler.  As our libraries contain their own
4811         # guards for processor-specific code, instead suppress
4812         # generation of the HWCAPS ELF section on Solaris x86 only.
4813         enabled_all suncc x86 &&
4814             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4815             add_ldflags -Wl,-M,mapfile
4816         nm_default='nm -P -g'
4817         version_script='-M'
4818         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4819         ;;
4820     netbsd)
4821         disable symver
4822         oss_indev_extralibs="-lossaudio"
4823         oss_outdev_extralibs="-lossaudio"
4824         enabled gcc || check_ldflags -Wl,-zmuldefs
4825         ;;
4826     openbsd|bitrig)
4827         disable symver
4828         SHFLAGS='-shared'
4829         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4830         SLIB_INSTALL_LINKS=
4831         oss_indev_extralibs="-lossaudio"
4832         oss_outdev_extralibs="-lossaudio"
4833         ;;
4834     dragonfly)
4835         disable symver
4836         ;;
4837     freebsd)
4838         ;;
4839     bsd/os)
4840         add_extralibs -lpoll -lgnugetopt
4841         strip="strip -d"
4842         ;;
4843     darwin)
4844         enabled ppc && add_asflags -force_cpusubtype_ALL
4845         install_name_dir_default='$(SHLIBDIR)'
4846         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4847         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4848         strip="${strip} -x"
4849         add_ldflags -Wl,-dynamic,-search_paths_first
4850         SLIBSUF=".dylib"
4851         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4852         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4853         objformat="macho"
4854         enabled x86_64 && objformat="macho64"
4855         enabled_any pic shared x86_64 ||
4856             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4857         check_header dispatch/dispatch.h &&
4858             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4859         version_script='-exported_symbols_list'
4860         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4861         ;;
4862     msys*)
4863         die "Native MSYS builds are discouraged, please use the MINGW environment."
4864         ;;
4865     mingw32*|mingw64*)
4866         if test $target_os = "mingw32ce"; then
4867             disable network
4868         else
4869             target_os=mingw32
4870         fi
4871         LIBTARGET=i386
4872         if enabled x86_64; then
4873             LIBTARGET="i386:x86-64"
4874         elif enabled arm; then
4875             LIBTARGET=arm-wince
4876         fi
4877         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4878         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4879         shlibdir_default="$bindir_default"
4880         SLIBPREF=""
4881         SLIBSUF=".dll"
4882         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4883         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4884         dlltool="${cross_prefix}dlltool"
4885         if check_cmd lib.exe -list; then
4886             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4887             if enabled x86_64; then
4888                 LIBTARGET=x64
4889             fi
4890         elif check_cmd $dlltool --version; then
4891             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4892         fi
4893         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4894         SLIB_INSTALL_LINKS=
4895         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4896         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4897         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4898         objformat="win32"
4899         ranlib=:
4900         enable dos_paths
4901         check_ldflags -Wl,--nxcompat,--dynamicbase
4902         # Lets work around some stupidity in binutils.
4903         # ld will strip relocations from executables even though we need them