lavd: drop disabled v4l code
[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   --disable-autodetect     disable automatically detected external libraries [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   --disable-alsa           disable ALSA support [autodetect]
205   --enable-avisynth        enable reading of AviSynth script files [no]
206   --disable-bzlib          disable bzlib [autodetect]
207   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
208   --enable-frei0r          enable frei0r video filtering [no]
209   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
210                            if openssl, librtmp or gmp is not used [no]
211   --enable-gmp             enable gmp, needed for rtmp(t)e support
212                            if openssl or librtmp is not used [no]
213   --enable-gnutls          enable gnutls, needed for https support
214                            if openssl is not used [no]
215   --disable-iconv          disable iconv [autodetect]
216   --disable-jack           disable libjack support [autodetect]
217   --enable-jni             enable JNI support [no]
218   --enable-ladspa          enable LADSPA audio filtering [no]
219   --enable-libass          enable libass subtitles rendering,
220                            needed for subtitles and ass filter [no]
221   --enable-libbluray       enable BluRay reading using libbluray [no]
222   --enable-libbs2b         enable bs2b DSP library [no]
223   --enable-libcaca         enable textual display using libcaca [no]
224   --enable-libcelt         enable CELT decoding via libcelt [no]
225   --enable-libcdio         enable audio CD grabbing with libcdio [no]
226   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
227                            and libraw1394 [no]
228   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
229   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
230   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
231   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
232   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
233   --enable-libgme          enable Game Music Emu via libgme [no]
234   --enable-libgsm          enable GSM de/encoding via libgsm [no]
235   --enable-libiec61883     enable iec61883 via libiec61883 [no]
236   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
237   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
238   --enable-libmodplug      enable ModPlug via libmodplug [no]
239   --enable-libmp3lame      enable MP3 encoding via libmp3lame [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-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvmaf         enable vmaf filter via libvmaf [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-libndi_newtek   enable Newteck NDI I/O support [no]
284   --enable-mediacodec      enable Android MediaCodec support [no]
285   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
286   --enable-openal          enable OpenAL 1.1 capture support [no]
287   --enable-opencl          enable OpenCL code
288   --enable-opengl          enable OpenGL rendering [no]
289   --enable-openssl         enable openssl, needed for https support
290                            if gnutls is not used [no]
291   --disable-sndio          disable sndio support [autodetect]
292   --disable-schannel       disable SChannel SSP, needed for TLS support on
293                            Windows if openssl and gnutls are not used [autodetect]
294   --disable-sdl2           disable sdl2 [autodetect]
295   --disable-securetransport disable Secure Transport, needed for TLS support
296                            on OSX if openssl and gnutls are not used [autodetect]
297   --disable-xlib           disable xlib [autodetect]
298   --disable-zlib           disable zlib [autodetect]
299
300   The following libraries provide various hardware acceleration features:
301   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
302   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
303   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
304   --disable-cuvid          disable Nvidia CUVID support [autodetect]
305   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
306   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
307   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
308   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
309   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
310   --disable-nvenc          disable Nvidia video encoding code [autodetect]
311   --enable-omx             enable OpenMAX IL code [no]
312   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
313   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
314   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
315   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
316   --disable-videotoolbox   disable VideoToolbox code [autodetect]
317
318 Toolchain options:
319   --arch=ARCH              select architecture [$arch]
320   --cpu=CPU                select the minimum required CPU (affects
321                            instruction selection, may crash on older CPUs)
322   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
323   --progs-suffix=SUFFIX    program name suffix []
324   --enable-cross-compile   assume a cross-compiler is used
325   --sysroot=PATH           root of cross-build tree
326   --sysinclude=PATH        location of cross-build system headers
327   --target-os=OS           compiler targets OS [$target_os]
328   --target-exec=CMD        command to run executables on target
329   --target-path=DIR        path to view of build directory on target
330   --target-samples=DIR     path to samples directory on target
331   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
332   --toolchain=NAME         set tool defaults according to NAME
333   --nm=NM                  use nm tool NM [$nm_default]
334   --ar=AR                  use archive tool AR [$ar_default]
335   --as=AS                  use assembler AS [$as_default]
336   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
337   --strip=STRIP            use strip tool STRIP [$strip_default]
338   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
339   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
340   --cc=CC                  use C compiler CC [$cc_default]
341   --cxx=CXX                use C compiler CXX [$cxx_default]
342   --objcc=OCC              use ObjC compiler OCC [$cc_default]
343   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
344   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
345   --ld=LD                  use linker LD [$ld_default]
346   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
347   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
348   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
349   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
350   --host-cc=HOSTCC         use host C compiler HOSTCC
351   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
352   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
353   --host-ld=HOSTLD         use host linker HOSTLD
354   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
355   --host-libs=HLIBS        use libs HLIBS when linking for host
356   --host-os=OS             compiler host OS [$target_os]
357   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
358   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
359   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
360   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
361   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
362   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
363   --extra-libs=ELIBS       add ELIBS [$ELIBS]
364   --extra-version=STRING   version string suffix []
365   --optflags=OPTFLAGS      override optimization-related compiler flags
366   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
367   --build-suffix=SUFFIX    library name suffix []
368   --enable-pic             build position-independent code
369   --enable-thumb           compile for Thumb instruction set
370   --enable-lto             use link-time optimization
371   --env="ENV=override"     override the environment variables
372
373 Advanced options (experts only):
374   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
375   --custom-allocator=NAME  use a supported custom allocator
376   --disable-symver         disable symbol versioning
377   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
378   --disable-safe-bitstream-reader
379                            disable buffer boundary checking in bitreaders
380                            (faster, but may crash)
381   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
382
383 Optimization options (experts only):
384   --disable-asm            disable all assembly optimizations
385   --disable-altivec        disable AltiVec optimizations
386   --disable-vsx            disable VSX optimizations
387   --disable-power8         disable POWER8 optimizations
388   --disable-amd3dnow       disable 3DNow! optimizations
389   --disable-amd3dnowext    disable 3DNow! extended optimizations
390   --disable-mmx            disable MMX optimizations
391   --disable-mmxext         disable MMXEXT optimizations
392   --disable-sse            disable SSE optimizations
393   --disable-sse2           disable SSE2 optimizations
394   --disable-sse3           disable SSE3 optimizations
395   --disable-ssse3          disable SSSE3 optimizations
396   --disable-sse4           disable SSE4 optimizations
397   --disable-sse42          disable SSE4.2 optimizations
398   --disable-avx            disable AVX optimizations
399   --disable-xop            disable XOP optimizations
400   --disable-fma3           disable FMA3 optimizations
401   --disable-fma4           disable FMA4 optimizations
402   --disable-avx2           disable AVX2 optimizations
403   --disable-aesni          disable AESNI optimizations
404   --disable-armv5te        disable armv5te optimizations
405   --disable-armv6          disable armv6 optimizations
406   --disable-armv6t2        disable armv6t2 optimizations
407   --disable-vfp            disable VFP optimizations
408   --disable-neon           disable NEON optimizations
409   --disable-inline-asm     disable use of inline assembly
410   --disable-x86asm         disable use of standalone x86 assembly
411   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
412   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
413   --disable-msa            disable MSA optimizations
414   --disable-mipsfpu        disable floating point MIPS optimizations
415   --disable-mmi            disable Loongson SIMD optimizations
416   --disable-fast-unaligned consider unaligned accesses slow
417
418 Developer options (useful when working on FFmpeg itself):
419   --disable-debug          disable debugging symbols
420   --enable-debug=LEVEL     set the debug level [$debuglevel]
421   --disable-optimizations  disable compiler optimizations
422   --enable-extra-warnings  enable more compiler warnings
423   --disable-stripping      disable stripping of executables and shared libraries
424   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
425                            2 causes a slowdown at runtime.
426   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
427   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
428                            leaks and errors, using the specified valgrind binary.
429                            Cannot be combined with --target-exec
430   --enable-ftrapv          Trap arithmetic overflows
431   --samples=PATH           location of test samples for FATE, if not set use
432                            \$FATE_SAMPLES at make invocation time.
433   --enable-neon-clobber-test check NEON registers for clobbering (should be
434                            used only for debugging purposes)
435   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
436                            should be used only for debugging purposes)
437   --enable-random          randomly enable/disable components
438   --disable-random
439   --enable-random=LIST     randomly enable/disable specific components or
440   --disable-random=LIST    component groups. LIST is a comma-separated list
441                            of NAME[:PROB] entries where NAME is a component
442                            (group) and PROB the probability associated with
443                            NAME (default 0.5).
444   --random-seed=VALUE      seed value for --enable/disable-random
445   --disable-valgrind-backtrace do not print a backtrace under Valgrind
446                            (only applies to --disable-optimizations builds)
447   --enable-osfuzz          Enable building fuzzer tool
448   --libfuzzer=PATH         path to libfuzzer
449   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
450                            in the name) of tests whose result is ignored
451
452 NOTE: Object files are built at the place where configure is launched.
453 EOF
454   exit 0
455 }
456
457 quotes='""'
458 if test -t 1 && which tput >/dev/null 2>&1; then
459     ncolors=$(tput colors)
460     if test -n "$ncolors" && test $ncolors -ge 8; then
461         bold_color=$(tput bold)
462         warn_color=$(tput setaf 3)
463         error_color=$(tput setaf 1)
464         reset_color=$(tput sgr0)
465     fi
466     # 72 used instead of 80 since that's the default of pr
467     ncols=$(tput cols)
468 fi
469 : ${ncols:=72}
470
471 log(){
472     echo "$@" >> $logfile
473 }
474
475 log_file(){
476     log BEGIN $1
477     pr -n -t $1 >> $logfile
478     log END $1
479 }
480
481 warn(){
482     log "WARNING: $*"
483     WARNINGS="${WARNINGS}WARNING: $*\n"
484 }
485
486 die(){
487     log "$@"
488     echo "$error_color$bold_color$@$reset_color"
489     cat <<EOF
490
491 If you think configure made a mistake, make sure you are using the latest
492 version from Git.  If the latest version fails, report the problem to the
493 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
494 EOF
495     if disabled logging; then
496         cat <<EOF
497 Rerun configure with logging enabled (do not use --disable-logging), and
498 include the log this produces with your report.
499 EOF
500     else
501         cat <<EOF
502 Include the log file "$logfile" produced by configure as this will help
503 solve the problem.
504 EOF
505     fi
506     exit 1
507 }
508
509 # Avoid locale weirdness, besides we really just want to translate ASCII.
510 toupper(){
511     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
512 }
513
514 tolower(){
515     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
516 }
517
518 c_escape(){
519     echo "$*" | sed 's/["\\]/\\\0/g'
520 }
521
522 sh_quote(){
523     v=$(echo "$1" | sed "s/'/'\\\\''/g")
524     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
525     echo "$v"
526 }
527
528 cleanws(){
529     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
530 }
531
532 filter(){
533     pat=$1
534     shift
535     for v; do
536         eval "case $v in $pat) printf '%s ' $v ;; esac"
537     done
538 }
539
540 filter_out(){
541     pat=$1
542     shift
543     for v; do
544         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
545     done
546 }
547
548 map(){
549     m=$1
550     shift
551     for v; do eval $m; done
552 }
553
554 add_suffix(){
555     suffix=$1
556     shift
557     for v; do echo ${v}${suffix}; done
558 }
559
560 set_all(){
561     value=$1
562     shift
563     for var in $*; do
564         eval $var=$value
565     done
566 }
567
568 set_weak(){
569     value=$1
570     shift
571     for var; do
572         eval : \${$var:=$value}
573     done
574 }
575
576 sanitize_var_name(){
577     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
578 }
579
580 set_safe(){
581     var=$1
582     shift
583     eval $(sanitize_var_name "$var")='$*'
584 }
585
586 get_safe(){
587     eval echo \$$(sanitize_var_name "$1")
588 }
589
590 pushvar(){
591     for pvar in $*; do
592         eval level=\${${pvar}_level:=0}
593         eval ${pvar}_${level}="\$$pvar"
594         eval ${pvar}_level=$(($level+1))
595     done
596 }
597
598 popvar(){
599     for pvar in $*; do
600         eval level=\${${pvar}_level:-0}
601         test $level = 0 && continue
602         eval level=$(($level-1))
603         eval $pvar="\${${pvar}_${level}}"
604         eval ${pvar}_level=$level
605         eval unset ${pvar}_${level}
606     done
607 }
608
609 request(){
610     for var in $*; do
611         eval ${var}_requested=yes
612         eval $var=
613     done
614 }
615
616 enable(){
617     set_all yes $*
618 }
619
620 disable(){
621     set_all no $*
622 }
623
624 enable_weak(){
625     set_weak yes $*
626 }
627
628 disable_weak(){
629     set_weak no $*
630 }
631
632 enable_safe(){
633     for var; do
634         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
635     done
636 }
637
638 disable_safe(){
639     for var; do
640         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
641     done
642 }
643
644 do_enable_deep(){
645     for var; do
646         enabled $var && continue
647         eval sel="\$${var}_select"
648         eval sgs="\$${var}_suggest"
649         pushvar var sgs
650         enable_deep $sel
651         popvar sgs
652         enable_deep_weak $sgs
653         popvar var
654     done
655 }
656
657 enable_deep(){
658     do_enable_deep $*
659     enable $*
660 }
661
662 enable_deep_weak(){
663     for var; do
664         disabled $var && continue
665         pushvar var
666         do_enable_deep $var
667         popvar var
668         enable_weak $var
669     done
670 }
671
672 requested(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}_requested" $op "xyes"
675 }
676
677 enabled(){
678     test "${1#!}" = "$1" && op='=' || op=!=
679     eval test "x\$${1#!}" $op "xyes"
680 }
681
682 disabled(){
683     test "${1#!}" = "$1" && op='=' || op=!=
684     eval test "x\$${1#!}" $op "xno"
685 }
686
687 enabled_all(){
688     for opt; do
689         enabled $opt || return 1
690     done
691 }
692
693 disabled_all(){
694     for opt; do
695         disabled $opt || return 1
696     done
697 }
698
699 enabled_any(){
700     for opt; do
701         enabled $opt && return 0
702     done
703 }
704
705 disabled_any(){
706     for opt; do
707         disabled $opt && return 0
708     done
709     return 1
710 }
711
712 set_default(){
713     for opt; do
714         eval : \${$opt:=\$${opt}_default}
715     done
716 }
717
718 is_in(){
719     value=$1
720     shift
721     for var in $*; do
722         [ $var = $value ] && return 0
723     done
724     return 1
725 }
726
727 do_check_deps(){
728     for cfg; do
729         cfg="${cfg#!}"
730         enabled ${cfg}_checking && die "Circular dependency for $cfg."
731         disabled ${cfg}_checking && continue
732         enable ${cfg}_checking
733         append allopts $cfg
734
735         eval dep_all="\$${cfg}_deps"
736         eval dep_any="\$${cfg}_deps_any"
737         eval dep_sel="\$${cfg}_select"
738         eval dep_sgs="\$${cfg}_suggest"
739         eval dep_ifa="\$${cfg}_if"
740         eval dep_ifn="\$${cfg}_if_any"
741
742         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
743         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
744         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
745
746         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
747         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
748         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
749         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
750         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
751
752         if enabled $cfg; then
753             enable_deep $dep_sel
754             enable_deep_weak $dep_sgs
755         fi
756
757         disable ${cfg}_checking
758     done
759 }
760
761 check_deps(){
762     unset allopts
763
764     do_check_deps "$@"
765
766     for cfg in $allopts; do
767         enabled $cfg || continue
768         eval dep_extralibs="\$${cfg}_extralibs"
769         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
770     done
771 }
772
773 print_config(){
774     pfx=$1
775     files=$2
776     shift 2
777     map 'eval echo "$v \${$v:-no}"' "$@" |
778     awk "BEGIN { split(\"$files\", files) }
779         {
780             c = \"$pfx\" toupper(\$1);
781             v = \$2;
782             sub(/yes/, 1, v);
783             sub(/no/,  0, v);
784             for (f in files) {
785                 file = files[f];
786                 if (file ~ /\\.h\$/) {
787                     printf(\"#define %s %d\\n\", c, v) >>file;
788                 } else if (file ~ /\\.asm\$/) {
789                     printf(\"%%define %s %d\\n\", c, v) >>file;
790                 } else if (file ~ /\\.mak\$/) {
791                     n = -v ? \"\" : \"!\";
792                     printf(\"%s%s=yes\\n\", n, c) >>file;
793                 } else if (file ~ /\\.texi\$/) {
794                     pre = -v ? \"\" : \"@c \";
795                     yesno = \$2;
796                     c2 = tolower(c);
797                     gsub(/_/, \"-\", c2);
798                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
799                 }
800             }
801         }"
802 }
803
804 print_enabled(){
805     suf=$1
806     shift
807     for v; do
808         enabled $v && printf "%s\n" ${v%$suf}
809     done
810 }
811
812 append(){
813     var=$1
814     shift
815     eval "$var=\"\$$var $*\""
816 }
817
818 prepend(){
819     var=$1
820     shift
821     eval "$var=\"$* \$$var\""
822 }
823
824 unique(){
825     var=$1
826     uniq_list=""
827     for tok in $(eval echo \$$var); do
828         uniq_list="$(filter_out $tok $uniq_list) $tok"
829     done
830     eval "$var=\"${uniq_list}\""
831 }
832
833 add_cppflags(){
834     append CPPFLAGS "$@"
835 }
836
837 add_cflags(){
838     append CFLAGS $($cflags_filter "$@")
839 }
840
841 add_cflags_headers(){
842     append CFLAGS_HEADERS $($cflags_filter "$@")
843 }
844
845 add_cxxflags(){
846     append CXXFLAGS $($cflags_filter "$@")
847 }
848
849 add_asflags(){
850     append ASFLAGS $($asflags_filter "$@")
851 }
852
853 add_objcflags(){
854     append OBJCFLAGS $($objcflags_filter "$@")
855 }
856
857 add_ldflags(){
858     append LDFLAGS $($ldflags_filter "$@")
859 }
860
861 add_ldexeflags(){
862     append LDEXEFLAGS $($ldflags_filter "$@")
863 }
864
865 add_ldlibflags(){
866     append LDLIBFLAGS $($ldflags_filter "$@")
867 }
868
869 add_stripflags(){
870     append ASMSTRIPFLAGS "$@"
871 }
872
873 add_extralibs(){
874     prepend extralibs $($ldflags_filter "$@")
875 }
876
877 add_host_cppflags(){
878     append host_cppflags "$@"
879 }
880
881 add_host_cflags(){
882     append host_cflags $($host_cflags_filter "$@")
883 }
884
885 add_host_ldflags(){
886     append host_ldflags $($host_ldflags_filter "$@")
887 }
888
889 add_compat(){
890     append compat_objs $1
891     shift
892     map 'add_cppflags -D$v' "$@"
893 }
894
895 check_cmd(){
896     log "$@"
897     "$@" >> $logfile 2>&1
898 }
899
900 check_stat(){
901     log check_stat "$@"
902     stat "$1" >> $logfile 2>&1
903 }
904
905 cc_o(){
906     eval printf '%s\\n' $CC_O
907 }
908
909 cc_e(){
910     eval printf '%s\\n' $CC_E
911 }
912
913 check_cc(){
914     log check_cc "$@"
915     cat > $TMPC
916     log_file $TMPC
917     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
918 }
919
920 check_cxx(){
921     log check_cxx "$@"
922     cat > $TMPCPP
923     log_file $TMPCPP
924     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
925 }
926
927 check_objcc(){
928     log check_objcc "$@"
929     cat > $TMPM
930     log_file $TMPM
931     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
932 }
933
934 check_cpp(){
935     log check_cpp "$@"
936     cat > $TMPC
937     log_file $TMPC
938     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
939 }
940
941 as_o(){
942     eval printf '%s\\n' $AS_O
943 }
944
945 check_as(){
946     log check_as "$@"
947     cat > $TMPS
948     log_file $TMPS
949     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
950 }
951
952 check_inline_asm(){
953     log check_inline_asm "$@"
954     name="$1"
955     code="$2"
956     shift 2
957     disable $name
958     check_cc "$@" <<EOF && enable $name
959 void foo(void){ __asm__ volatile($code); }
960 EOF
961 }
962
963 check_inline_asm_flags(){
964     log check_inline_asm_flags "$@"
965     name="$1"
966     code="$2"
967     flags=''
968     shift 2
969     while [ "$1" != "" ]; do
970       append flags $1
971       shift
972     done;
973     disable $name
974     cat > $TMPC <<EOF
975 void foo(void){ __asm__ volatile($code); }
976 EOF
977     log_file $TMPC
978     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
979     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
980 }
981
982 check_insn(){
983     log check_insn "$@"
984     check_inline_asm ${1}_inline "\"$2\""
985     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
986 }
987
988 check_x86asm(){
989     log check_x86asm "$@"
990     echo "$1" > $TMPS
991     log_file $TMPS
992     shift 1
993     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
994 }
995
996 ld_o(){
997     eval printf '%s\\n' $LD_O
998 }
999
1000 check_ld(){
1001     log check_ld "$@"
1002     type=$1
1003     shift 1
1004     flags=$(filter_out '-l*|*.so' $@)
1005     libs=$(filter '-l*|*.so' $@)
1006     check_$type $($cflags_filter $flags) || return
1007     flags=$($ldflags_filter $flags)
1008     libs=$($ldflags_filter $libs)
1009     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1010 }
1011
1012 print_include(){
1013     hdr=$1
1014     test "${hdr%.h}" = "${hdr}" &&
1015         echo "#include $hdr"    ||
1016         echo "#include <$hdr>"
1017 }
1018
1019 check_code(){
1020     log check_code "$@"
1021     check=$1
1022     headers=$2
1023     code=$3
1024     shift 3
1025     {
1026         for hdr in $headers; do
1027             print_include $hdr
1028         done
1029         echo "int main(void) { $code; return 0; }"
1030     } | check_$check "$@"
1031 }
1032
1033 check_cppflags(){
1034     log check_cppflags "$@"
1035     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1036 int x;
1037 EOF
1038 }
1039
1040 test_cflags(){
1041     log test_cflags "$@"
1042     set -- $($cflags_filter "$@")
1043     check_cc "$@" <<EOF
1044 int x;
1045 EOF
1046 }
1047
1048 check_cflags(){
1049     log check_cflags "$@"
1050     test_cflags "$@" && add_cflags "$@"
1051 }
1052
1053 check_cxxflags(){
1054     log check_cxxflags "$@"
1055     set -- $($cflags_filter "$@")
1056     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1057 int x;
1058 EOF
1059 }
1060
1061 test_objcflags(){
1062     log test_objcflags "$@"
1063     set -- $($objcflags_filter "$@")
1064     check_objcc "$@" <<EOF
1065 int x;
1066 EOF
1067 }
1068
1069 check_objcflags(){
1070     log check_objcflags "$@"
1071     test_objcflags "$@" && add_objcflags "$@"
1072 }
1073
1074 test_ldflags(){
1075     log test_ldflags "$@"
1076     check_ld "cc" "$@" <<EOF
1077 int main(void){ return 0; }
1078 EOF
1079 }
1080
1081 check_ldflags(){
1082     log check_ldflags "$@"
1083     test_ldflags "$@" && add_ldflags "$@"
1084 }
1085
1086 test_stripflags(){
1087     log test_stripflags "$@"
1088     # call check_cc to get a fresh TMPO
1089     check_cc <<EOF
1090 int main(void) { return 0; }
1091 EOF
1092     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1093 }
1094
1095 check_stripflags(){
1096     log check_stripflags "$@"
1097     test_stripflags "$@" && add_stripflags "$@"
1098 }
1099
1100 check_header(){
1101     log check_header "$@"
1102     header=$1
1103     shift
1104     disable_safe $header
1105     check_cpp "$@" <<EOF && enable_safe $header
1106 #include <$header>
1107 int x;
1108 EOF
1109 }
1110
1111 check_header_objcc(){
1112     log check_header_objcc "$@"
1113     rm -f -- "$TMPO"
1114     header=$1
1115     shift
1116     disable_safe $header
1117     {
1118        echo "#include <$header>"
1119        echo "int main(void) { return 0; }"
1120     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1121 }
1122
1123 check_func(){
1124     log check_func "$@"
1125     func=$1
1126     shift
1127     disable $func
1128     check_ld "cc" "$@" <<EOF && enable $func
1129 extern int $func();
1130 int main(void){ $func(); }
1131 EOF
1132 }
1133
1134 check_complexfunc(){
1135     log check_complexfunc "$@"
1136     func=$1
1137     narg=$2
1138     shift 2
1139     test $narg = 2 && args="f, g" || args="f * I"
1140     disable $func
1141     check_ld "cc" "$@" <<EOF && enable $func
1142 #include <complex.h>
1143 #include <math.h>
1144 float foo(complex float f, complex float g) { return $func($args); }
1145 int main(void){ return (int) foo; }
1146 EOF
1147 }
1148
1149 check_mathfunc(){
1150     log check_mathfunc "$@"
1151     func=$1
1152     narg=$2
1153     shift 2
1154     test $narg = 2 && args="f, g" || args="f"
1155     disable $func
1156     check_ld "cc" "$@" <<EOF && enable $func
1157 #include <math.h>
1158 float foo(float f, float g) { return $func($args); }
1159 int main(void){ return (int) foo; }
1160 EOF
1161 }
1162
1163 check_func_headers(){
1164     log check_func_headers "$@"
1165     headers=$1
1166     funcs=$2
1167     shift 2
1168     {
1169         for hdr in $headers; do
1170             print_include $hdr
1171         done
1172         echo "#include <stdint.h>"
1173         for func in $funcs; do
1174             echo "long check_$func(void) { return (long) $func; }"
1175         done
1176         echo "int main(void) { int ret = 0;"
1177         # LTO could optimize out the test functions without this
1178         for func in $funcs; do
1179             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1180         done
1181         echo "return ret; }"
1182     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1183 }
1184
1185 check_class_headers_cpp(){
1186     log check_class_headers_cpp "$@"
1187     headers=$1
1188     classes=$2
1189     shift 2
1190     {
1191         for hdr in $headers; do
1192             echo "#include <$hdr>"
1193         done
1194         echo "int main(void) { "
1195         i=1
1196         for class in $classes; do
1197             echo "$class obj$i;"
1198             i=$(expr $i + 1)
1199         done
1200         echo "return 0; }"
1201     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1202 }
1203
1204 check_cpp_condition(){
1205     log check_cpp_condition "$@"
1206     header=$1
1207     condition=$2
1208     shift 2
1209     check_cpp "$@" <<EOF
1210 #include <$header>
1211 #if !($condition)
1212 #error "unsatisfied condition: $condition"
1213 #endif
1214 EOF
1215 }
1216
1217 test_cflags_cc(){
1218     log test_cflags_cc "$@"
1219     flags=$1
1220     header=$2
1221     condition=$3
1222     shift 3
1223     set -- $($cflags_filter "$flags")
1224     check_cc "$@" <<EOF
1225 #include <$header>
1226 #if !($condition)
1227 #error "unsatisfied condition: $condition"
1228 #endif
1229 EOF
1230 }
1231
1232 check_lib(){
1233     log check_lib "$@"
1234     name="$1"
1235     headers="$2"
1236     funcs="$3"
1237     shift 3
1238     disable $name
1239     check_func_headers "$headers" "$funcs" "$@" &&
1240         enable $name && add_extralibs "$@"
1241 }
1242
1243 check_lib_cpp(){
1244     log check_lib_cpp "$@"
1245     headers="$1"
1246     classes="$2"
1247     shift 2
1248     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1249 }
1250
1251 check_pkg_config(){
1252     log check_pkg_config "$@"
1253     pkg_version="$1"
1254     pkg="${1%% *}"
1255     headers="$2"
1256     funcs="$3"
1257     shift 3
1258     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1259     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1260     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1261     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1262         set_safe "${pkg}_cflags"    $pkg_cflags &&
1263         set_safe "${pkg}_extralibs" $pkg_libs
1264 }
1265
1266 check_exec(){
1267     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1268 }
1269
1270 check_exec_crash(){
1271     log check_exec_crash "$@"
1272     code=$(cat)
1273
1274     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1275     # are safe but may not be available everywhere.  Thus we use
1276     # raise(SIGTERM) instead.  The check is run in a subshell so we
1277     # can redirect the "Terminated" message from the shell.  SIGBUS
1278     # is not defined by standard C so it is used conditionally.
1279
1280     (check_exec "$@") >> $logfile 2>&1 <<EOF
1281 #include <signal.h>
1282 static void sighandler(int sig){
1283     raise(SIGTERM);
1284 }
1285 int foo(void){
1286     $code
1287 }
1288 int (*func_ptr)(void) = foo;
1289 int main(void){
1290     signal(SIGILL, sighandler);
1291     signal(SIGFPE, sighandler);
1292     signal(SIGSEGV, sighandler);
1293 #ifdef SIGBUS
1294     signal(SIGBUS, sighandler);
1295 #endif
1296     return func_ptr();
1297 }
1298 EOF
1299 }
1300
1301 check_type(){
1302     log check_type "$@"
1303     headers=$1
1304     type=$2
1305     shift 2
1306     disable_safe "$type"
1307     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1308 }
1309
1310 check_struct(){
1311     log check_struct "$@"
1312     headers=$1
1313     struct=$2
1314     member=$3
1315     shift 3
1316     disable_safe "${struct}_${member}"
1317     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1318         enable_safe "${struct}_${member}"
1319 }
1320
1321 check_builtin(){
1322     log check_builtin "$@"
1323     name=$1
1324     headers=$2
1325     builtin=$3
1326     shift 3
1327     disable "$name"
1328     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1329 }
1330
1331 check_compile_assert(){
1332     log check_compile_assert "$@"
1333     name=$1
1334     headers=$2
1335     condition=$3
1336     shift 3
1337     disable "$name"
1338     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1339 }
1340
1341 require(){
1342     log require "$@"
1343     name_version="$1"
1344     name="${1%% *}"
1345     headers="$2"
1346     func="$3"
1347     shift 3
1348     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1349 }
1350
1351 require_cpp(){
1352     name="$1"
1353     headers="$2"
1354     classes="$3"
1355     shift 3
1356     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1357 }
1358
1359 use_pkg_config(){
1360     log use_pkg_config "$@"
1361     pkg="$1"
1362     check_pkg_config "$@" || return 1
1363     add_cflags    $(get_safe "${pkg}_cflags")
1364     add_extralibs $(get_safe "${pkg}_extralibs")
1365 }
1366
1367 require_pkg_config(){
1368     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1369 }
1370
1371 hostcc_e(){
1372     eval printf '%s\\n' $HOSTCC_E
1373 }
1374
1375 hostcc_o(){
1376     eval printf '%s\\n' $HOSTCC_O
1377 }
1378
1379 check_host_cc(){
1380     log check_host_cc "$@"
1381     cat > $TMPC
1382     log_file $TMPC
1383     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1384 }
1385
1386 check_host_cpp(){
1387     log check_host_cpp "$@"
1388     cat > $TMPC
1389     log_file $TMPC
1390     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1391 }
1392
1393 check_host_cppflags(){
1394     log check_host_cppflags "$@"
1395     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1396 int x;
1397 EOF
1398 }
1399
1400 check_host_cflags(){
1401     log check_host_cflags "$@"
1402     set -- $($host_cflags_filter "$@")
1403     check_host_cc "$@" <<EOF && append host_cflags "$@"
1404 int x;
1405 EOF
1406 }
1407
1408 check_host_cpp_condition(){
1409     log check_host_cpp_condition "$@"
1410     header=$1
1411     condition=$2
1412     shift 2
1413     check_host_cpp "$@" <<EOF
1414 #include <$header>
1415 #if !($condition)
1416 #error "unsatisfied condition: $condition"
1417 #endif
1418 EOF
1419 }
1420
1421 cp_if_changed(){
1422     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1423     mkdir -p "$(dirname $2)"
1424     cp -f "$1" "$2"
1425 }
1426
1427 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1428 # system-dependent things.
1429
1430 AVCODEC_COMPONENTS="
1431     bsfs
1432     decoders
1433     encoders
1434     hwaccels
1435     parsers
1436 "
1437
1438 AVDEVICE_COMPONENTS="
1439     indevs
1440     outdevs
1441 "
1442 AVFILTER_COMPONENTS="
1443     filters
1444 "
1445 AVFORMAT_COMPONENTS="
1446     demuxers
1447     muxers
1448     protocols
1449 "
1450
1451 AVRESAMPLE_COMPONENTS=""
1452 AVUTIL_COMPONENTS=""
1453
1454 COMPONENT_LIST="
1455     $AVCODEC_COMPONENTS
1456     $AVDEVICE_COMPONENTS
1457     $AVFILTER_COMPONENTS
1458     $AVFORMAT_COMPONENTS
1459     $AVRESAMPLE_COMPONENTS
1460     $AVUTIL_COMPONENTS
1461 "
1462
1463 EXAMPLE_LIST="
1464     avio_dir_cmd_example
1465     avio_reading_example
1466     decode_audio_example
1467     decode_video_example
1468     demuxing_decoding_example
1469     encode_audio_example
1470     encode_video_example
1471     extract_mvs_example
1472     filter_audio_example
1473     filtering_audio_example
1474     filtering_video_example
1475     http_multiclient_example
1476     hw_decode_example
1477     metadata_example
1478     muxing_example
1479     qsvdec_example
1480     remuxing_example
1481     resampling_audio_example
1482     scaling_video_example
1483     transcode_aac_example
1484     transcoding_example
1485 "
1486 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1487     alsa
1488     bzlib
1489     iconv
1490     jack
1491     libxcb
1492     libxcb_shm
1493     libxcb_shape
1494     libxcb_xfixes
1495     lzma
1496     schannel
1497     sdl2
1498     securetransport
1499     sndio
1500     xlib
1501     zlib
1502 "
1503
1504 EXTERNAL_LIBRARY_GPL_LIST="
1505     avisynth
1506     frei0r
1507     libcdio
1508     librubberband
1509     libvidstab
1510     libx264
1511     libx265
1512     libxavs
1513     libxvid
1514 "
1515
1516 EXTERNAL_LIBRARY_NONFREE_LIST="
1517     decklink
1518     libndi_newtek
1519     libfdk_aac
1520     openssl
1521 "
1522
1523 EXTERNAL_LIBRARY_VERSION3_LIST="
1524     gmp
1525     libopencore_amrnb
1526     libopencore_amrwb
1527     libvo_amrwbenc
1528 "
1529
1530 EXTERNAL_LIBRARY_GPLV3_LIST="
1531     libsmbclient
1532 "
1533
1534 EXTERNAL_LIBRARY_LIST="
1535     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1536     $EXTERNAL_LIBRARY_GPL_LIST
1537     $EXTERNAL_LIBRARY_NONFREE_LIST
1538     $EXTERNAL_LIBRARY_VERSION3_LIST
1539     $EXTERNAL_LIBRARY_GPLV3_LIST
1540     chromaprint
1541     gcrypt
1542     gnutls
1543     jni
1544     ladspa
1545     libass
1546     libbluray
1547     libbs2b
1548     libcaca
1549     libcelt
1550     libdc1394
1551     libflite
1552     libfontconfig
1553     libfreetype
1554     libfribidi
1555     libgme
1556     libgsm
1557     libiec61883
1558     libilbc
1559     libkvazaar
1560     libmodplug
1561     libmp3lame
1562     libmysofa
1563     libopencv
1564     libopenh264
1565     libopenjpeg
1566     libopenmpt
1567     libopus
1568     libpulse
1569     librsvg
1570     librtmp
1571     libshine
1572     libsmbclient
1573     libsnappy
1574     libsoxr
1575     libspeex
1576     libssh
1577     libtesseract
1578     libtheora
1579     libtwolame
1580     libv4l2
1581     libvmaf
1582     libvorbis
1583     libvpx
1584     libwavpack
1585     libwebp
1586     libzimg
1587     libzmq
1588     libzvbi
1589     mediacodec
1590     openal
1591     opencl
1592     opengl
1593     videotoolbox
1594 "
1595 HWACCEL_AUTODETECT_LIBRARY_LIST="
1596     audiotoolbox
1597     crystalhd
1598     cuda
1599     cuvid
1600     d3d11va
1601     dxva2
1602     nvenc
1603     vaapi
1604     vda
1605     vdpau
1606     videotoolbox_hwaccel
1607     xvmc
1608 "
1609
1610 HWACCEL_LIBRARY_NONFREE_LIST="
1611     cuda_sdk
1612     libnpp
1613 "
1614
1615 HWACCEL_LIBRARY_LIST="
1616     $HWACCEL_AUTODETECT_LIBRARY_LIST
1617     $HWACCEL_LIBRARY_NONFREE_LIST
1618     libmfx
1619     mmal
1620     omx
1621 "
1622
1623 DOCUMENT_LIST="
1624     doc
1625     htmlpages
1626     manpages
1627     podpages
1628     txtpages
1629 "
1630
1631 FEATURE_LIST="
1632     ftrapv
1633     gray
1634     hardcoded_tables
1635     omx_rpi
1636     runtime_cpudetect
1637     safe_bitstream_reader
1638     shared
1639     small
1640     static
1641     swscale_alpha
1642 "
1643
1644 LIBRARY_LIST="
1645     avcodec
1646     avdevice
1647     avfilter
1648     avformat
1649     avresample
1650     avutil
1651     postproc
1652     swresample
1653     swscale
1654 "
1655
1656 LICENSE_LIST="
1657     gpl
1658     nonfree
1659     version3
1660 "
1661
1662 PROGRAM_LIST="
1663     ffplay
1664     ffprobe
1665     ffserver
1666     ffmpeg
1667 "
1668
1669 SUBSYSTEM_LIST="
1670     dct
1671     dwt
1672     error_resilience
1673     faan
1674     fast_unaligned
1675     fft
1676     lsp
1677     lzo
1678     mdct
1679     pixelutils
1680     network
1681     rdft
1682 "
1683
1684 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1685 CONFIG_LIST="
1686     $DOCUMENT_LIST
1687     $EXAMPLE_LIST
1688     $EXTERNAL_LIBRARY_LIST
1689     $HWACCEL_LIBRARY_LIST
1690     $FEATURE_LIST
1691     $LICENSE_LIST
1692     $LIBRARY_LIST
1693     $PROGRAM_LIST
1694     $SUBSYSTEM_LIST
1695     autodetect
1696     fontconfig
1697     memory_poisoning
1698     neon_clobber_test
1699     ossfuzz
1700     pic
1701     thumb
1702     valgrind_backtrace
1703     xmm_clobber_test
1704     $COMPONENT_LIST
1705 "
1706
1707 THREADS_LIST="
1708     pthreads
1709     os2threads
1710     w32threads
1711 "
1712
1713 ATOMICS_LIST="
1714     atomics_gcc
1715     atomics_suncc
1716     atomics_win32
1717 "
1718
1719 AUTODETECT_LIBS="
1720     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1721     $HWACCEL_AUTODETECT_LIBRARY_LIST
1722     $THREADS_LIST
1723 "
1724
1725 ARCH_LIST="
1726     aarch64
1727     alpha
1728     arm
1729     avr32
1730     avr32_ap
1731     avr32_uc
1732     bfin
1733     ia64
1734     m68k
1735     mips
1736     mips64
1737     parisc
1738     ppc
1739     ppc64
1740     s390
1741     sh4
1742     sparc
1743     sparc64
1744     tilegx
1745     tilepro
1746     tomi
1747     x86
1748     x86_32
1749     x86_64
1750 "
1751
1752 ARCH_EXT_LIST_ARM="
1753     armv5te
1754     armv6
1755     armv6t2
1756     armv8
1757     neon
1758     vfp
1759     vfpv3
1760     setend
1761 "
1762
1763 ARCH_EXT_LIST_MIPS="
1764     mipsfpu
1765     mips32r2
1766     mips32r5
1767     mips64r2
1768     mips32r6
1769     mips64r6
1770     mipsdsp
1771     mipsdspr2
1772     msa
1773 "
1774
1775 ARCH_EXT_LIST_LOONGSON="
1776     loongson2
1777     loongson3
1778     mmi
1779 "
1780
1781 ARCH_EXT_LIST_X86_SIMD="
1782     aesni
1783     amd3dnow
1784     amd3dnowext
1785     avx
1786     avx2
1787     fma3
1788     fma4
1789     mmx
1790     mmxext
1791     sse
1792     sse2
1793     sse3
1794     sse4
1795     sse42
1796     ssse3
1797     xop
1798 "
1799
1800 ARCH_EXT_LIST_PPC="
1801     altivec
1802     dcbzl
1803     ldbrx
1804     power8
1805     ppc4xx
1806     vsx
1807 "
1808
1809 ARCH_EXT_LIST_X86="
1810     $ARCH_EXT_LIST_X86_SIMD
1811     cpunop
1812     i686
1813 "
1814
1815 ARCH_EXT_LIST="
1816     $ARCH_EXT_LIST_ARM
1817     $ARCH_EXT_LIST_PPC
1818     $ARCH_EXT_LIST_X86
1819     $ARCH_EXT_LIST_MIPS
1820     $ARCH_EXT_LIST_LOONGSON
1821 "
1822
1823 ARCH_FEATURES="
1824     aligned_stack
1825     fast_64bit
1826     fast_clz
1827     fast_cmov
1828     local_aligned_8
1829     local_aligned_16
1830     local_aligned_32
1831     simd_align_16
1832     simd_align_32
1833 "
1834
1835 BUILTIN_LIST="
1836     atomic_cas_ptr
1837     machine_rw_barrier
1838     MemoryBarrier
1839     mm_empty
1840     rdtsc
1841     sarestart
1842     sem_timedwait
1843     sync_val_compare_and_swap
1844 "
1845 HAVE_LIST_CMDLINE="
1846     inline_asm
1847     symver
1848     x86asm
1849 "
1850
1851 HAVE_LIST_PUB="
1852     bigendian
1853     fast_unaligned
1854 "
1855
1856 HEADERS_LIST="
1857     altivec_h
1858     arpa_inet_h
1859     asm_types_h
1860     cdio_paranoia_h
1861     cdio_paranoia_paranoia_h
1862     cuda_h
1863     d3d11_h
1864     dispatch_dispatch_h
1865     dev_bktr_ioctl_bt848_h
1866     dev_bktr_ioctl_meteor_h
1867     dev_ic_bt8xx_h
1868     dev_video_bktr_ioctl_bt848_h
1869     dev_video_meteor_ioctl_meteor_h
1870     direct_h
1871     dirent_h
1872     dlfcn_h
1873     dxgidebug_h
1874     dxva_h
1875     ES2_gl_h
1876     gsm_h
1877     io_h
1878     mach_mach_time_h
1879     machine_ioctl_bt848_h
1880     machine_ioctl_meteor_h
1881     malloc_h
1882     opencv2_core_core_c_h
1883     openjpeg_2_2_openjpeg_h
1884     openjpeg_2_1_openjpeg_h
1885     openjpeg_2_0_openjpeg_h
1886     openjpeg_1_5_openjpeg_h
1887     OpenGL_gl3_h
1888     poll_h
1889     soundcard_h
1890     stdatomic_h
1891     sys_mman_h
1892     sys_param_h
1893     sys_resource_h
1894     sys_select_h
1895     sys_soundcard_h
1896     sys_time_h
1897     sys_un_h
1898     sys_videoio_h
1899     termios_h
1900     udplite_h
1901     unistd_h
1902     valgrind_valgrind_h
1903     windows_h
1904     winsock2_h
1905 "
1906
1907 INTRINSICS_LIST="
1908     intrinsics_neon
1909 "
1910
1911 COMPLEX_FUNCS="
1912     cabs
1913     cexp
1914 "
1915
1916 MATH_FUNCS="
1917     atanf
1918     atan2f
1919     cbrt
1920     cbrtf
1921     copysign
1922     cosf
1923     erf
1924     exp2
1925     exp2f
1926     expf
1927     hypot
1928     isfinite
1929     isinf
1930     isnan
1931     ldexpf
1932     llrint
1933     llrintf
1934     log2
1935     log2f
1936     log10f
1937     lrint
1938     lrintf
1939     powf
1940     rint
1941     round
1942     roundf
1943     sinf
1944     trunc
1945     truncf
1946 "
1947
1948 SYSTEM_FUNCS="
1949     access
1950     aligned_malloc
1951     arc4random
1952     clock_gettime
1953     closesocket
1954     CommandLineToArgvW
1955     CoTaskMemFree
1956     CryptGenRandom
1957     dlopen
1958     fcntl
1959     flt_lim
1960     fork
1961     getaddrinfo
1962     gethrtime
1963     getopt
1964     GetProcessAffinityMask
1965     GetProcessMemoryInfo
1966     GetProcessTimes
1967     getrusage
1968     GetSystemTimeAsFileTime
1969     gettimeofday
1970     glob
1971     glXGetProcAddress
1972     gmtime_r
1973     inet_aton
1974     isatty
1975     jack_port_get_latency_range
1976     kbhit
1977     LoadLibrary
1978     localtime_r
1979     lstat
1980     lzo1x_999_compress
1981     mach_absolute_time
1982     MapViewOfFile
1983     memalign
1984     mkstemp
1985     mmap
1986     mprotect
1987     nanosleep
1988     PeekNamedPipe
1989     posix_memalign
1990     pthread_cancel
1991     sched_getaffinity
1992     SetConsoleTextAttribute
1993     SetConsoleCtrlHandler
1994     setmode
1995     setrlimit
1996     Sleep
1997     strerror_r
1998     sysconf
1999     sysctl
2000     usleep
2001     UTGetOSTypeFromString
2002     VirtualAlloc
2003     wglGetProcAddress
2004 "
2005
2006 TOOLCHAIN_FEATURES="
2007     as_dn_directive
2008     as_fpu_directive
2009     as_func
2010     as_object_arch
2011     asm_mod_q
2012     attribute_may_alias
2013     attribute_packed
2014     blocks_extension
2015     ebp_available
2016     ebx_available
2017     gnu_as
2018     gnu_windres
2019     ibm_asm
2020     inline_asm_direct_symbol_refs
2021     inline_asm_labels
2022     inline_asm_nonlocal_labels
2023     pragma_deprecated
2024     rsync_contimeout
2025     symver_asm_label
2026     symver_gnu_asm
2027     vfp_args
2028     xform_asm
2029     xmm_clobbers
2030 "
2031
2032 TYPES_LIST="
2033     CONDITION_VARIABLE_Ptr
2034     socklen_t
2035     struct_addrinfo
2036     struct_group_source_req
2037     struct_ip_mreq_source
2038     struct_ipv6_mreq
2039     struct_msghdr_msg_flags
2040     struct_pollfd
2041     struct_rusage_ru_maxrss
2042     struct_sctp_event_subscribe
2043     struct_sockaddr_in6
2044     struct_sockaddr_sa_len
2045     struct_sockaddr_storage
2046     struct_stat_st_mtim_tv_nsec
2047     struct_v4l2_frmivalenum_discrete
2048 "
2049
2050 HAVE_LIST="
2051     $ARCH_EXT_LIST
2052     $(add_suffix _external $ARCH_EXT_LIST)
2053     $(add_suffix _inline   $ARCH_EXT_LIST)
2054     $ARCH_FEATURES
2055     $ATOMICS_LIST
2056     $BUILTIN_LIST
2057     $COMPLEX_FUNCS
2058     $HAVE_LIST_CMDLINE
2059     $HAVE_LIST_PUB
2060     $HEADERS_LIST
2061     $INTRINSICS_LIST
2062     $MATH_FUNCS
2063     $SYSTEM_FUNCS
2064     $THREADS_LIST
2065     $TOOLCHAIN_FEATURES
2066     $TYPES_LIST
2067     atomics_native
2068     dos_paths
2069     libc_msvcrt
2070     makeinfo
2071     makeinfo_html
2072     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2073     perl
2074     pod2man
2075     section_data_rel_ro
2076     texi2html
2077     threads
2078     uwp
2079     vaapi_drm
2080     vaapi_x11
2081     vdpau_x11
2082     winrt
2083 "
2084
2085 # options emitted with CONFIG_ prefix but not available on the command line
2086 CONFIG_EXTRA="
2087     aandcttables
2088     ac3dsp
2089     audio_frame_queue
2090     audiodsp
2091     blockdsp
2092     bswapdsp
2093     cabac
2094     dirac_parse
2095     dvprofile
2096     exif
2097     faandct
2098     faanidct
2099     fdctdsp
2100     flacdsp
2101     fmtconvert
2102     frame_thread_encoder
2103     g722dsp
2104     golomb
2105     gplv3
2106     h263dsp
2107     h264chroma
2108     h264dsp
2109     h264parse
2110     h264pred
2111     h264qpel
2112     hevcparse
2113     hpeldsp
2114     huffman
2115     huffyuvdsp
2116     huffyuvencdsp
2117     idctdsp
2118     iirfilter
2119     mdct15
2120     intrax8
2121     iso_media
2122     ividsp
2123     jpegtables
2124     lgplv3
2125     libx262
2126     llauddsp
2127     llviddsp
2128     llvidencdsp
2129     lpc
2130     lzf
2131     me_cmp
2132     mpeg_er
2133     mpegaudio
2134     mpegaudiodsp
2135     mpegaudioheader
2136     mpegvideo
2137     mpegvideoenc
2138     mss34dsp
2139     pixblockdsp
2140     qpeldsp
2141     qsv
2142     qsvdec
2143     qsvenc
2144     rangecoder
2145     riffdec
2146     riffenc
2147     rtpdec
2148     rtpenc_chain
2149     rv34dsp
2150     sinewin
2151     snappy
2152     srtp
2153     startcode
2154     texturedsp
2155     texturedspenc
2156     tpeldsp
2157     vaapi_encode
2158     vc1dsp
2159     videodsp
2160     vp3dsp
2161     vp56dsp
2162     vp8dsp
2163     vt_bt2020
2164     wma_freqs
2165     wmv2dsp
2166 "
2167
2168 CMDLINE_SELECT="
2169     $ARCH_EXT_LIST
2170     $CONFIG_LIST
2171     $HAVE_LIST_CMDLINE
2172     $THREADS_LIST
2173     asm
2174     cross_compile
2175     debug
2176     extra_warnings
2177     logging
2178     lto
2179     optimizations
2180     rpath
2181     stripping
2182 "
2183
2184 PATHS_LIST="
2185     bindir
2186     datadir
2187     docdir
2188     incdir
2189     libdir
2190     mandir
2191     pkgconfigdir
2192     prefix
2193     shlibdir
2194     install_name_dir
2195 "
2196
2197 CMDLINE_SET="
2198     $PATHS_LIST
2199     ar
2200     arch
2201     as
2202     assert_level
2203     build_suffix
2204     cc
2205     objcc
2206     cpu
2207     cross_prefix
2208     custom_allocator
2209     cxx
2210     dep_cc
2211     doxygen
2212     env
2213     extra_version
2214     gas
2215     host_cc
2216     host_cflags
2217     host_extralibs
2218     host_ld
2219     host_ldflags
2220     host_os
2221     ignore_tests
2222     install
2223     ld
2224     ln_s
2225     logfile
2226     malloc_prefix
2227     nm
2228     optflags
2229     nvccflags
2230     pkg_config
2231     pkg_config_flags
2232     progs_suffix
2233     random_seed
2234     ranlib
2235     samples
2236     strip
2237     sws_max_filter_size
2238     sysinclude
2239     sysroot
2240     target_exec
2241     target_os
2242     target_path
2243     target_samples
2244     tempprefix
2245     toolchain
2246     valgrind
2247     x86asmexe
2248 "
2249
2250 CMDLINE_APPEND="
2251     extra_cflags
2252     extra_cxxflags
2253     extra_objcflags
2254     host_cppflags
2255 "
2256
2257 # code dependency declarations
2258
2259 # architecture extensions
2260
2261 armv5te_deps="arm"
2262 armv6_deps="arm"
2263 armv6t2_deps="arm"
2264 armv8_deps="aarch64"
2265 neon_deps_any="aarch64 arm"
2266 intrinsics_neon_deps="neon"
2267 vfp_deps_any="aarch64 arm"
2268 vfpv3_deps="vfp"
2269 setend_deps="arm"
2270
2271 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2272
2273 loongson2_deps="mips"
2274 loongson3_deps="mips"
2275 mipsfpu_deps="mips"
2276 mipsdsp_deps="mips"
2277 mipsdspr2_deps="mips"
2278 mips32r2_deps="mips"
2279 mips32r5_deps="mips"
2280 mips32r6_deps="mips"
2281 mips64r2_deps="mips"
2282 mips64r6_deps="mips"
2283 msa_deps="mipsfpu"
2284 mmi_deps="mips"
2285
2286 altivec_deps="ppc"
2287 dcbzl_deps="ppc"
2288 ldbrx_deps="ppc"
2289 ppc4xx_deps="ppc"
2290 vsx_deps="altivec"
2291 power8_deps="vsx"
2292
2293 cpunop_deps="i686"
2294 x86_64_select="i686"
2295 x86_64_suggest="fast_cmov"
2296
2297 amd3dnow_deps="mmx"
2298 amd3dnowext_deps="amd3dnow"
2299 i686_deps="x86"
2300 mmx_deps="x86"
2301 mmxext_deps="mmx"
2302 sse_deps="mmxext"
2303 sse2_deps="sse"
2304 sse3_deps="sse2"
2305 ssse3_deps="sse3"
2306 sse4_deps="ssse3"
2307 sse42_deps="sse4"
2308 aesni_deps="sse42"
2309 avx_deps="sse42"
2310 xop_deps="avx"
2311 fma3_deps="avx"
2312 fma4_deps="avx"
2313 avx2_deps="avx"
2314
2315 mmx_external_deps="x86asm"
2316 mmx_inline_deps="inline_asm"
2317 mmx_suggest="mmx_external mmx_inline"
2318
2319 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2320     eval dep=\$${ext}_deps
2321     eval ${ext}_external_deps='"${dep}_external"'
2322     eval ${ext}_inline_deps='"${dep}_inline"'
2323     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2324 done
2325
2326 aligned_stack_if_any="aarch64 ppc x86"
2327 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2328 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2329 fast_unaligned_if_any="aarch64 ppc x86"
2330 simd_align_16_if_any="altivec neon sse"
2331 simd_align_32_if_any="avx"
2332
2333 # system capabilities
2334 symver_if_any="symver_asm_label symver_gnu_asm"
2335 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2336
2337 # threading support
2338 atomics_gcc_if="sync_val_compare_and_swap"
2339 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2340 atomics_win32_if="MemoryBarrier"
2341 atomics_native_if_any="$ATOMICS_LIST"
2342 w32threads_deps="atomics_native"
2343 threads_if_any="$THREADS_LIST"
2344
2345 # subsystems
2346 dct_select="rdft"
2347 dirac_parse_select="golomb"
2348 error_resilience_select="me_cmp"
2349 faandct_deps="faan fdctdsp"
2350 faanidct_deps="faan idctdsp"
2351 h264dsp_select="startcode"
2352 hevcparse_select="golomb"
2353 frame_thread_encoder_deps="encoders threads"
2354 intrax8_select="blockdsp idctdsp"
2355 mdct_select="fft"
2356 mdct15_select="fft"
2357 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2358 mpeg_er_select="error_resilience"
2359 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2360 mpegaudiodsp_select="dct"
2361 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2362 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2363 vc1dsp_select="h264chroma qpeldsp startcode"
2364 rdft_select="fft"
2365
2366 # decoders / encoders
2367 aac_decoder_select="mdct15 mdct sinewin"
2368 aac_fixed_decoder_select="mdct sinewin"
2369 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2370 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2371 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2372 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2373 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2374 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2375 adpcm_g722_decoder_select="g722dsp"
2376 adpcm_g722_encoder_select="g722dsp"
2377 aic_decoder_select="golomb idctdsp"
2378 alac_encoder_select="lpc"
2379 als_decoder_select="bswapdsp"
2380 amrnb_decoder_select="lsp"
2381 amrwb_decoder_select="lsp"
2382 amv_decoder_select="sp5x_decoder exif"
2383 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2384 ape_decoder_select="bswapdsp llauddsp"
2385 apng_decoder_select="zlib"
2386 apng_encoder_select="llvidencdsp zlib"
2387 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2388 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2389 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2390 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2391 atrac1_decoder_select="mdct sinewin"
2392 atrac3_decoder_select="mdct"
2393 atrac3p_decoder_select="mdct sinewin"
2394 avrn_decoder_select="exif jpegtables"
2395 bink_decoder_select="blockdsp hpeldsp"
2396 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2397 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2398 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2399 clearvideo_decoder_select="idctdsp"
2400 cllc_decoder_select="bswapdsp"
2401 comfortnoise_encoder_select="lpc"
2402 cook_decoder_select="audiodsp mdct sinewin"
2403 cscd_decoder_select="lzo"
2404 cscd_decoder_suggest="zlib"
2405 dca_decoder_select="mdct"
2406 dds_decoder_select="texturedsp"
2407 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2408 dnxhd_decoder_select="blockdsp idctdsp"
2409 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2410 dolby_e_decoder_select="mdct"
2411 dvvideo_decoder_select="dvprofile idctdsp"
2412 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2413 dxa_decoder_select="zlib"
2414 dxv_decoder_select="lzf texturedsp"
2415 eac3_decoder_select="ac3_decoder"
2416 eac3_encoder_select="ac3_encoder"
2417 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2418 eatgq_decoder_select="aandcttables"
2419 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2420 exr_decoder_select="zlib"
2421 ffv1_decoder_select="rangecoder"
2422 ffv1_encoder_select="rangecoder"
2423 ffvhuff_decoder_select="huffyuv_decoder"
2424 ffvhuff_encoder_select="huffyuv_encoder"
2425 fic_decoder_select="golomb"
2426 flac_decoder_select="flacdsp"
2427 flac_encoder_select="bswapdsp flacdsp lpc"
2428 flashsv2_decoder_select="zlib"
2429 flashsv2_encoder_select="zlib"
2430 flashsv_decoder_select="zlib"
2431 flashsv_encoder_select="zlib"
2432 flv_decoder_select="h263_decoder"
2433 flv_encoder_select="h263_encoder"
2434 fourxm_decoder_select="blockdsp bswapdsp"
2435 fraps_decoder_select="bswapdsp huffman"
2436 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2437 g729_decoder_select="audiodsp"
2438 h261_decoder_select="mpegvideo"
2439 h261_encoder_select="aandcttables mpegvideoenc"
2440 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2441 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2442 h263i_decoder_select="h263_decoder"
2443 h263p_decoder_select="h263_decoder"
2444 h263p_encoder_select="h263_encoder"
2445 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2446 h264_decoder_suggest="error_resilience"
2447 hap_decoder_select="snappy texturedsp"
2448 hap_encoder_deps="libsnappy"
2449 hap_encoder_select="texturedspenc"
2450 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2451 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2452 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2453 iac_decoder_select="imc_decoder"
2454 imc_decoder_select="bswapdsp fft mdct sinewin"
2455 indeo3_decoder_select="hpeldsp"
2456 indeo4_decoder_select="ividsp"
2457 indeo5_decoder_select="ividsp"
2458 interplay_video_decoder_select="hpeldsp"
2459 jpegls_decoder_select="mjpeg_decoder"
2460 jv_decoder_select="blockdsp"
2461 lagarith_decoder_select="llviddsp"
2462 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2463 magicyuv_decoder_select="llviddsp"
2464 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2465 metasound_decoder_select="lsp mdct sinewin"
2466 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2467 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2468 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2469 mjpegb_decoder_select="mjpeg_decoder"
2470 mlp_decoder_select="mlp_parser"
2471 mlp_encoder_select="lpc"
2472 motionpixels_decoder_select="bswapdsp"
2473 mp1_decoder_select="mpegaudio"
2474 mp1float_decoder_select="mpegaudio"
2475 mp2_decoder_select="mpegaudio"
2476 mp2float_decoder_select="mpegaudio"
2477 mp3_decoder_select="mpegaudio"
2478 mp3adu_decoder_select="mpegaudio"
2479 mp3adufloat_decoder_select="mpegaudio"
2480 mp3float_decoder_select="mpegaudio"
2481 mp3on4_decoder_select="mpegaudio"
2482 mp3on4float_decoder_select="mpegaudio"
2483 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2484 mpc8_decoder_select="mpegaudiodsp"
2485 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2486 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2487 mpegvideo_decoder_select="mpegvideo"
2488 mpeg1video_decoder_select="mpegvideo"
2489 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2490 mpeg2video_decoder_select="mpegvideo"
2491 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2492 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2493 mpeg4_encoder_select="h263_encoder"
2494 msa1_decoder_select="mss34dsp"
2495 mscc_decoder_select="zlib"
2496 msmpeg4v1_decoder_select="h263_decoder"
2497 msmpeg4v2_decoder_select="h263_decoder"
2498 msmpeg4v2_encoder_select="h263_encoder"
2499 msmpeg4v3_decoder_select="h263_decoder"
2500 msmpeg4v3_encoder_select="h263_encoder"
2501 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2502 mts2_decoder_select="mss34dsp"
2503 mxpeg_decoder_select="mjpeg_decoder"
2504 nellymoser_decoder_select="mdct sinewin"
2505 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2506 nuv_decoder_select="idctdsp lzo"
2507 on2avc_decoder_select="mdct"
2508 opus_decoder_deps="swresample"
2509 opus_decoder_select="mdct15"
2510 opus_encoder_select="audio_frame_queue mdct15"
2511 png_decoder_select="zlib"
2512 png_encoder_select="llvidencdsp zlib"
2513 prores_decoder_select="blockdsp idctdsp"
2514 prores_encoder_select="fdctdsp"
2515 qcelp_decoder_select="lsp"
2516 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2517 ra_144_decoder_select="audiodsp"
2518 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2519 ralf_decoder_select="golomb"
2520 rawvideo_decoder_select="bswapdsp"
2521 rscc_decoder_select="zlib"
2522 rtjpeg_decoder_select="me_cmp"
2523 rv10_decoder_select="h263_decoder"
2524 rv10_encoder_select="h263_encoder"
2525 rv20_decoder_select="h263_decoder"
2526 rv20_encoder_select="h263_encoder"
2527 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2528 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2529 screenpresso_decoder_select="zlib"
2530 shorten_decoder_select="bswapdsp"
2531 sipr_decoder_select="lsp"
2532 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2533 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2534 sonic_decoder_select="golomb rangecoder"
2535 sonic_encoder_select="golomb rangecoder"
2536 sonic_ls_encoder_select="golomb rangecoder"
2537 sp5x_decoder_select="mjpeg_decoder"
2538 srgc_decoder_select="zlib"
2539 svq1_decoder_select="hpeldsp"
2540 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2541 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2542 svq3_decoder_suggest="zlib"
2543 tak_decoder_select="audiodsp"
2544 tdsc_decoder_select="zlib mjpeg_decoder"
2545 theora_decoder_select="vp3_decoder"
2546 thp_decoder_select="mjpeg_decoder"
2547 tiff_decoder_suggest="zlib lzma"
2548 tiff_encoder_suggest="zlib"
2549 truehd_decoder_select="mlp_parser"
2550 truehd_encoder_select="lpc"
2551 truemotion2_decoder_select="bswapdsp"
2552 truespeech_decoder_select="bswapdsp"
2553 tscc_decoder_select="zlib"
2554 twinvq_decoder_select="mdct lsp sinewin"
2555 txd_decoder_select="texturedsp"
2556 utvideo_decoder_select="bswapdsp llviddsp"
2557 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2558 vble_decoder_select="llviddsp"
2559 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2560 vc1_qsv_decoder_deps="libmfx"
2561 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2562 vc1image_decoder_select="vc1_decoder"
2563 vorbis_decoder_select="mdct"
2564 vorbis_encoder_select="mdct"
2565 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2566 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2567 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2568 vp6a_decoder_select="vp6_decoder"
2569 vp6f_decoder_select="vp6_decoder"
2570 vp7_decoder_select="h264pred videodsp vp8dsp"
2571 vp8_decoder_select="h264pred videodsp vp8dsp"
2572 vp9_decoder_select="videodsp vp9_parser"
2573 webp_decoder_select="vp8_decoder exif"
2574 wmalossless_decoder_select="llauddsp"
2575 wmapro_decoder_select="mdct sinewin wma_freqs"
2576 wmav1_decoder_select="mdct sinewin wma_freqs"
2577 wmav1_encoder_select="mdct sinewin wma_freqs"
2578 wmav2_decoder_select="mdct sinewin wma_freqs"
2579 wmav2_encoder_select="mdct sinewin wma_freqs"
2580 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2581 wmv1_decoder_select="h263_decoder"
2582 wmv1_encoder_select="h263_encoder"
2583 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2584 wmv2_encoder_select="h263_encoder wmv2dsp"
2585 wmv3_decoder_select="vc1_decoder"
2586 wmv3image_decoder_select="wmv3_decoder"
2587 xma1_decoder_select="wmapro_decoder"
2588 xma2_decoder_select="wmapro_decoder"
2589 zerocodec_decoder_select="zlib"
2590 zlib_decoder_select="zlib"
2591 zlib_encoder_select="zlib"
2592 zmbv_decoder_select="zlib"
2593 zmbv_encoder_select="zlib"
2594
2595 # platform codecs
2596 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2597 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2598
2599 # hardware accelerators
2600 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2601 cuda_deps_any="dlopen LoadLibrary"
2602 cuvid_deps="cuda"
2603 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2604 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2605 dxva2_extralibs="-luser32"
2606 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2607 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2608 vda_deps="vda_framework pthreads"
2609 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2610 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2611 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2612 xvmc_deps="X11_extensions_XvMClib_h"
2613
2614 h263_vaapi_hwaccel_deps="vaapi"
2615 h263_vaapi_hwaccel_select="h263_decoder"
2616 h263_videotoolbox_hwaccel_deps="videotoolbox"
2617 h263_videotoolbox_hwaccel_select="h263_decoder"
2618 h264_cuvid_hwaccel_deps="cuda cuvid"
2619 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2620 h264_d3d11va_hwaccel_deps="d3d11va"
2621 h264_d3d11va_hwaccel_select="h264_decoder"
2622 h264_d3d11va2_hwaccel_deps="d3d11va"
2623 h264_d3d11va2_hwaccel_select="h264_decoder"
2624 h264_dxva2_hwaccel_deps="dxva2"
2625 h264_dxva2_hwaccel_select="h264_decoder"
2626 h264_mediacodec_hwaccel_deps="mediacodec"
2627 h264_mmal_hwaccel_deps="mmal"
2628 h264_qsv_hwaccel_deps="libmfx"
2629 h264_vaapi_hwaccel_deps="vaapi"
2630 h264_vaapi_hwaccel_select="h264_decoder"
2631 h264_vda_hwaccel_deps="vda"
2632 h264_vda_hwaccel_select="h264_decoder"
2633 h264_vda_old_hwaccel_deps="vda"
2634 h264_vda_old_hwaccel_select="h264_decoder"
2635 h264_vdpau_hwaccel_deps="vdpau"
2636 h264_vdpau_hwaccel_select="h264_decoder"
2637 h264_videotoolbox_hwaccel_deps="videotoolbox"
2638 h264_videotoolbox_hwaccel_select="h264_decoder"
2639 hevc_cuvid_hwaccel_deps="cuda cuvid"
2640 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2641 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2642 hevc_d3d11va_hwaccel_select="hevc_decoder"
2643 hevc_mediacodec_hwaccel_deps="mediacodec"
2644 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2645 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2646 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2647 hevc_dxva2_hwaccel_select="hevc_decoder"
2648 hevc_qsv_hwaccel_deps="libmfx"
2649 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2650 hevc_vaapi_hwaccel_select="hevc_decoder"
2651 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2652 hevc_vdpau_hwaccel_select="hevc_decoder"
2653 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2654 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2655 mpeg_xvmc_hwaccel_deps="xvmc"
2656 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2657 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2658 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2659 mpeg1_vdpau_hwaccel_deps="vdpau"
2660 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2661 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2662 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2663 mpeg1_xvmc_hwaccel_deps="xvmc"
2664 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2665 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2666 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2667 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2668 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2669 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2670 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_dxva2_hwaccel_deps="dxva2"
2672 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2673 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2674 mpeg2_mmal_hwaccel_deps="mmal"
2675 mpeg2_qsv_hwaccel_deps="libmfx"
2676 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2677 mpeg2_vaapi_hwaccel_deps="vaapi"
2678 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2679 mpeg2_vdpau_hwaccel_deps="vdpau"
2680 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2681 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2682 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2683 mpeg2_xvmc_hwaccel_deps="xvmc"
2684 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2685 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2686 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2687 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2688 mpeg4_mmal_hwaccel_deps="mmal"
2689 mpeg4_vaapi_hwaccel_deps="vaapi"
2690 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2691 mpeg4_vdpau_hwaccel_deps="vdpau"
2692 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2693 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2694 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2695 vc1_cuvid_hwaccel_deps="cuda cuvid"
2696 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2697 vc1_d3d11va_hwaccel_deps="d3d11va"
2698 vc1_d3d11va_hwaccel_select="vc1_decoder"
2699 vc1_d3d11va2_hwaccel_deps="d3d11va"
2700 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2701 vc1_dxva2_hwaccel_deps="dxva2"
2702 vc1_dxva2_hwaccel_select="vc1_decoder"
2703 vc1_mmal_hwaccel_deps="mmal"
2704 vc1_qsv_hwaccel_deps="libmfx"
2705 vc1_qsv_hwaccel_select="qsvdec_vc1"
2706 vc1_vaapi_hwaccel_deps="vaapi"
2707 vc1_vaapi_hwaccel_select="vc1_decoder"
2708 vc1_vdpau_hwaccel_deps="vdpau"
2709 vc1_vdpau_hwaccel_select="vc1_decoder"
2710 vp8_cuvid_hwaccel_deps="cuda cuvid"
2711 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2712 vp9_cuvid_hwaccel_deps="cuda cuvid"
2713 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2714 vp8_mediacodec_hwaccel_deps="mediacodec"
2715 vp8_qsv_hwaccel_deps="libmfx"
2716 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2717 vp9_d3d11va_hwaccel_select="vp9_decoder"
2718 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2719 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2720 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2721 vp9_dxva2_hwaccel_select="vp9_decoder"
2722 vp9_mediacodec_hwaccel_deps="mediacodec"
2723 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2724 vp9_vaapi_hwaccel_select="vp9_decoder"
2725 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2726 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2727 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2728 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2729 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2730
2731 # hardware-accelerated codecs
2732 omx_deps="dlopen pthreads"
2733 omx_extralibs='$ldl'
2734 omx_rpi_select="omx"
2735 qsvdec_select="qsv"
2736 qsvenc_select="qsv"
2737 vaapi_encode_deps="vaapi"
2738
2739 hwupload_cuda_filter_deps="cuda"
2740 scale_npp_filter_deps="cuda libnpp"
2741 scale_cuda_filter_deps="cuda_sdk"
2742
2743 nvenc_deps="cuda"
2744 nvenc_deps_any="dlopen LoadLibrary"
2745 nvenc_encoder_deps="nvenc"
2746
2747 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2748 h264_cuvid_decoder_deps="cuda cuvid"
2749 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2750 h264_mediacodec_decoder_deps="mediacodec"
2751 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2752 h264_mmal_decoder_deps="mmal"
2753 h264_nvenc_encoder_deps="nvenc"
2754 h264_omx_encoder_deps="omx"
2755 h264_qsv_decoder_deps="libmfx"
2756 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2757 h264_qsv_encoder_deps="libmfx"
2758 h264_qsv_encoder_select="qsvenc"
2759 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2760 h264_vaapi_encoder_select="vaapi_encode golomb"
2761 h264_vda_decoder_deps="vda"
2762 h264_vda_decoder_select="h264_decoder"
2763 h264_vdpau_decoder_deps="vdpau"
2764 h264_vdpau_decoder_select="h264_decoder"
2765 hevc_cuvid_decoder_deps="cuda cuvid"
2766 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2767 hevc_mediacodec_decoder_deps="mediacodec"
2768 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2769 hevc_nvenc_encoder_deps="nvenc"
2770 hevc_qsv_decoder_deps="libmfx"
2771 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2772 hevc_qsv_encoder_deps="libmfx"
2773 hevc_qsv_encoder_select="hevcparse qsvenc"
2774 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2775 hevc_vaapi_encoder_select="vaapi_encode golomb"
2776 mjpeg_cuvid_decoder_deps="cuda cuvid"
2777 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2778 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2779 mpeg1_cuvid_decoder_deps="cuda cuvid"
2780 mpeg1_vdpau_decoder_deps="vdpau"
2781 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2782 mpeg2_crystalhd_decoder_select="crystalhd"
2783 mpeg2_cuvid_decoder_deps="cuda cuvid"
2784 mpeg2_mmal_decoder_deps="mmal"
2785 mpeg2_mediacodec_decoder_deps="mediacodec"
2786 mpeg2_qsv_decoder_deps="libmfx"
2787 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2788 mpeg2_qsv_encoder_deps="libmfx"
2789 mpeg2_qsv_encoder_select="qsvenc"
2790 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2791 mpeg2_vaapi_encoder_select="vaapi_encode"
2792 mpeg4_crystalhd_decoder_select="crystalhd"
2793 mpeg4_cuvid_decoder_deps="cuda cuvid"
2794 mpeg4_mediacodec_decoder_deps="mediacodec"
2795 mpeg4_mmal_decoder_deps="mmal"
2796 mpeg4_omx_encoder_deps="omx"
2797 mpeg4_vdpau_decoder_deps="vdpau"
2798 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2799 mpeg_vdpau_decoder_deps="vdpau"
2800 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2801 msmpeg4_crystalhd_decoder_select="crystalhd"
2802 nvenc_h264_encoder_select="h264_nvenc_encoder"
2803 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2804 vc1_crystalhd_decoder_select="crystalhd"
2805 vc1_cuvid_decoder_deps="cuda cuvid"
2806 vc1_mmal_decoder_deps="mmal"
2807 vc1_vdpau_decoder_deps="vdpau"
2808 vc1_vdpau_decoder_select="vc1_decoder"
2809 vp8_cuvid_decoder_deps="cuda cuvid"
2810 vp8_mediacodec_decoder_deps="mediacodec"
2811 vp8_qsv_decoder_deps="libmfx"
2812 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2813 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2814 vp8_vaapi_encoder_select="vaapi_encode"
2815 vp9_cuvid_decoder_deps="cuda cuvid"
2816 vp9_mediacodec_decoder_deps="mediacodec"
2817 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2818 vp9_vaapi_encoder_select="vaapi_encode"
2819 wmv3_crystalhd_decoder_select="crystalhd"
2820 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2821
2822 # parsers
2823 h264_parser_select="golomb h264dsp h264parse"
2824 hevc_parser_select="hevcparse"
2825 mpegaudio_parser_select="mpegaudioheader"
2826 mpegvideo_parser_select="mpegvideo"
2827 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2828 vc1_parser_select="vc1dsp"
2829
2830 # bitstream_filters
2831 mjpeg2jpeg_bsf_select="jpegtables"
2832
2833 # external libraries
2834 aac_at_decoder_deps="audiotoolbox"
2835 ac3_at_decoder_deps="audiotoolbox"
2836 ac3_at_decoder_select="ac3_parser"
2837 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2838 alac_at_decoder_deps="audiotoolbox"
2839 amr_nb_at_decoder_deps="audiotoolbox"
2840 avisynth_deps_any="dlopen LoadLibrary"
2841 avisynth_demuxer_deps="avisynth"
2842 avisynth_demuxer_select="riffdec"
2843 eac3_at_decoder_deps="audiotoolbox"
2844 eac3_at_decoder_select="ac3_parser"
2845 gsm_ms_at_decoder_deps="audiotoolbox"
2846 ilbc_at_decoder_deps="audiotoolbox"
2847 mp1_at_decoder_deps="audiotoolbox"
2848 mp2_at_decoder_deps="audiotoolbox"
2849 mp3_at_decoder_deps="audiotoolbox"
2850 mp1_at_decoder_select="mpegaudioheader"
2851 mp2_at_decoder_select="mpegaudioheader"
2852 mp3_at_decoder_select="mpegaudioheader"
2853 pcm_alaw_at_decoder_deps="audiotoolbox"
2854 pcm_mulaw_at_decoder_deps="audiotoolbox"
2855 qdmc_at_decoder_deps="audiotoolbox"
2856 qdm2_at_decoder_deps="audiotoolbox"
2857 aac_at_encoder_deps="audiotoolbox"
2858 aac_at_encoder_select="audio_frame_queue"
2859 alac_at_encoder_deps="audiotoolbox"
2860 alac_at_encoder_select="audio_frame_queue"
2861 ilbc_at_encoder_deps="audiotoolbox"
2862 ilbc_at_encoder_select="audio_frame_queue"
2863 pcm_alaw_at_encoder_deps="audiotoolbox"
2864 pcm_alaw_at_encoder_select="audio_frame_queue"
2865 pcm_mulaw_at_encoder_deps="audiotoolbox"
2866 pcm_mulaw_at_encoder_select="audio_frame_queue"
2867 chromaprint_muxer_deps="chromaprint"
2868 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2869 libcelt_decoder_deps="libcelt"
2870 libfdk_aac_decoder_deps="libfdk_aac"
2871 libfdk_aac_encoder_deps="libfdk_aac"
2872 libfdk_aac_encoder_select="audio_frame_queue"
2873 libgme_demuxer_deps="libgme"
2874 libgsm_decoder_deps="libgsm"
2875 libgsm_encoder_deps="libgsm"
2876 libgsm_ms_decoder_deps="libgsm"
2877 libgsm_ms_encoder_deps="libgsm"
2878 libilbc_decoder_deps="libilbc"
2879 libilbc_encoder_deps="libilbc"
2880 libkvazaar_encoder_deps="libkvazaar"
2881 libmodplug_demuxer_deps="libmodplug"
2882 libmp3lame_encoder_deps="libmp3lame"
2883 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2884 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2885 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2886 libopencore_amrnb_encoder_select="audio_frame_queue"
2887 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2888 libopenh264_decoder_deps="libopenh264"
2889 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2890 libopenh264_encoder_deps="libopenh264"
2891 libopenjpeg_decoder_deps="libopenjpeg"
2892 libopenjpeg_encoder_deps="libopenjpeg"
2893 libopenmpt_demuxer_deps="libopenmpt"
2894 libopus_decoder_deps="libopus"
2895 libopus_encoder_deps="libopus"
2896 libopus_encoder_select="audio_frame_queue"
2897 librsvg_decoder_deps="librsvg"
2898 libshine_encoder_deps="libshine"
2899 libshine_encoder_select="audio_frame_queue"
2900 libspeex_decoder_deps="libspeex"
2901 libspeex_encoder_deps="libspeex"
2902 libspeex_encoder_select="audio_frame_queue"
2903 libtheora_encoder_deps="libtheora"
2904 libtwolame_encoder_deps="libtwolame"
2905 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2906 libvorbis_decoder_deps="libvorbis"
2907 libvorbis_encoder_deps="libvorbis"
2908 libvorbis_encoder_select="audio_frame_queue"
2909 libvpx_vp8_decoder_deps="libvpx"
2910 libvpx_vp8_encoder_deps="libvpx"
2911 libvpx_vp9_decoder_deps="libvpx"
2912 libvpx_vp9_encoder_deps="libvpx"
2913 libwavpack_encoder_deps="libwavpack"
2914 libwavpack_encoder_select="audio_frame_queue"
2915 libwebp_encoder_deps="libwebp"
2916 libwebp_anim_encoder_deps="libwebp"
2917 libx262_encoder_deps="libx262"
2918 libx264_encoder_deps="libx264"
2919 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2920 libx264rgb_encoder_select="libx264_encoder"
2921 libx265_encoder_deps="libx265"
2922 libxavs_encoder_deps="libxavs"
2923 libxvid_encoder_deps="libxvid"
2924 libzvbi_teletext_decoder_deps="libzvbi"
2925 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2926 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2927 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2928 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2929 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2930
2931 # demuxers / muxers
2932 ac3_demuxer_select="ac3_parser"
2933 aiff_muxer_select="iso_media"
2934 asf_demuxer_select="riffdec"
2935 asf_o_demuxer_select="riffdec"
2936 asf_muxer_select="riffenc"
2937 asf_stream_muxer_select="asf_muxer"
2938 avi_demuxer_select="iso_media riffdec exif"
2939 avi_muxer_select="riffenc"
2940 caf_demuxer_select="iso_media riffdec"
2941 caf_muxer_select="iso_media"
2942 dash_muxer_select="mp4_muxer"
2943 dirac_demuxer_select="dirac_parser"
2944 dts_demuxer_select="dca_parser"
2945 dtshd_demuxer_select="dca_parser"
2946 dv_demuxer_select="dvprofile"
2947 dv_muxer_select="dvprofile"
2948 dxa_demuxer_select="riffdec"
2949 eac3_demuxer_select="ac3_parser"
2950 f4v_muxer_select="mov_muxer"
2951 fifo_muxer_deps="threads"
2952 flac_demuxer_select="flac_parser"
2953 hds_muxer_select="flv_muxer"
2954 hls_muxer_select="mpegts_muxer"
2955 image2_alias_pix_demuxer_select="image2_demuxer"
2956 image2_brender_pix_demuxer_select="image2_demuxer"
2957 ipod_muxer_select="mov_muxer"
2958 ismv_muxer_select="mov_muxer"
2959 matroska_audio_muxer_select="matroska_muxer"
2960 matroska_demuxer_select="iso_media riffdec"
2961 matroska_demuxer_suggest="bzlib lzo zlib"
2962 matroska_muxer_select="iso_media riffenc"
2963 mmf_muxer_select="riffenc"
2964 mov_demuxer_select="iso_media riffdec"
2965 mov_demuxer_suggest="zlib"
2966 mov_muxer_select="iso_media riffenc rtpenc_chain"
2967 mp3_demuxer_select="mpegaudio_parser"
2968 mp3_muxer_select="mpegaudioheader"
2969 mp4_muxer_select="mov_muxer"
2970 mpegts_demuxer_select="iso_media"
2971 mpegts_muxer_select="adts_muxer latm_muxer"
2972 mpegtsraw_demuxer_select="mpegts_demuxer"
2973 mxf_d10_muxer_select="mxf_muxer"
2974 mxf_opatom_muxer_select="mxf_muxer"
2975 nut_muxer_select="riffenc"
2976 nuv_demuxer_select="riffdec"
2977 oga_muxer_select="ogg_muxer"
2978 ogg_demuxer_select="dirac_parse"
2979 ogv_muxer_select="ogg_muxer"
2980 opus_muxer_select="ogg_muxer"
2981 psp_muxer_select="mov_muxer"
2982 rtp_demuxer_select="sdp_demuxer"
2983 rtp_muxer_select="golomb"
2984 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2985 rtsp_demuxer_select="http_protocol rtpdec"
2986 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2987 sap_demuxer_select="sdp_demuxer"
2988 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2989 sdp_demuxer_select="rtpdec"
2990 smoothstreaming_muxer_select="ismv_muxer"
2991 spdif_muxer_select="aac_parser"
2992 spx_muxer_select="ogg_muxer"
2993 swf_demuxer_suggest="zlib"
2994 tak_demuxer_select="tak_parser"
2995 tg2_muxer_select="mov_muxer"
2996 tgp_muxer_select="mov_muxer"
2997 vobsub_demuxer_select="mpegps_demuxer"
2998 w64_demuxer_select="wav_demuxer"
2999 w64_muxer_select="wav_muxer"
3000 wav_demuxer_select="riffdec"
3001 wav_muxer_select="riffenc"
3002 webm_muxer_select="iso_media riffenc"
3003 webm_dash_manifest_demuxer_select="matroska_demuxer"
3004 wtv_demuxer_select="mpegts_demuxer riffdec"
3005 wtv_muxer_select="mpegts_muxer riffenc"
3006 xmv_demuxer_select="riffdec"
3007 xwma_demuxer_select="riffdec"
3008
3009 # indevs / outdevs
3010 alsa_indev_deps="alsa"
3011 alsa_outdev_deps="alsa"
3012 avfoundation_indev_deps="pthreads"
3013 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3014 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3015 caca_outdev_deps="libcaca"
3016 decklink_indev_deps="decklink threads"
3017 decklink_indev_extralibs="-lstdc++"
3018 decklink_outdev_deps="decklink threads"
3019 decklink_outdev_extralibs="-lstdc++"
3020 libndi_newtek_indev_deps="libndi_newtek"
3021 libndi_newtek_indev_extralibs="-lndi"
3022 libndi_newtek_outdev_deps="libndi_newtek"
3023 libndi_newtek_outdev_extralibs="-lndi"
3024 dshow_indev_deps="IBaseFilter"
3025 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3026 dv1394_indev_deps="dv1394"
3027 dv1394_indev_select="dv_demuxer"
3028 fbdev_indev_deps="linux_fb_h"
3029 fbdev_outdev_deps="linux_fb_h"
3030 gdigrab_indev_deps="CreateDIBSection"
3031 gdigrab_indev_extralibs="-lgdi32"
3032 gdigrab_indev_select="bmp_decoder"
3033 iec61883_indev_deps="libiec61883"
3034 jack_indev_deps="jack"
3035 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3036 lavfi_indev_deps="avfilter"
3037 libcdio_indev_deps="libcdio"
3038 libdc1394_indev_deps="libdc1394"
3039 libv4l2_indev_deps="libv4l2"
3040 openal_indev_deps="openal"
3041 opengl_outdev_deps="opengl"
3042 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3043 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3044 pulse_indev_deps="libpulse"
3045 pulse_outdev_deps="libpulse"
3046 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3047 qtkit_indev_select="qtkit"
3048 sdl2_outdev_deps="sdl2"
3049 sndio_indev_deps="sndio"
3050 sndio_outdev_deps="sndio"
3051 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3052 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3053 vfwcap_indev_deps="vfw32 vfwcap_defines"
3054 xcbgrab_indev_deps="libxcb"
3055 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3056 xv_outdev_extralibs="-lXv -lX11 -lXext"
3057
3058 # protocols
3059 async_protocol_deps="threads"
3060 bluray_protocol_deps="libbluray"
3061 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3062 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3063 ffrtmpcrypt_protocol_select="tcp_protocol"
3064 ffrtmphttp_protocol_deps="!librtmp_protocol"
3065 ffrtmphttp_protocol_select="http_protocol"
3066 ftp_protocol_select="tcp_protocol"
3067 gopher_protocol_select="network"
3068 http_protocol_select="tcp_protocol"
3069 httpproxy_protocol_select="tcp_protocol"
3070 https_protocol_select="tls_protocol"
3071 icecast_protocol_select="http_protocol"
3072 librtmp_protocol_deps="librtmp"
3073 librtmpe_protocol_deps="librtmp"
3074 librtmps_protocol_deps="librtmp"
3075 librtmpt_protocol_deps="librtmp"
3076 librtmpte_protocol_deps="librtmp"
3077 libsmbclient_protocol_deps="libsmbclient gplv3"
3078 libssh_protocol_deps="libssh"
3079 mmsh_protocol_select="http_protocol"
3080 mmst_protocol_select="network"
3081 rtmp_protocol_deps="!librtmp_protocol"
3082 rtmp_protocol_select="tcp_protocol"
3083 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3084 rtmps_protocol_deps="!librtmp_protocol"
3085 rtmps_protocol_select="tls_protocol"
3086 rtmpt_protocol_select="ffrtmphttp_protocol"
3087 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3088 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3089 rtp_protocol_select="udp_protocol"
3090 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3091 sctp_protocol_select="network"
3092 srtp_protocol_select="rtp_protocol srtp"
3093 tcp_protocol_select="network"
3094 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3095 tls_gnutls_protocol_select="tcp_protocol"
3096 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3097 tls_openssl_protocol_select="tcp_protocol"
3098 tls_schannel_protocol_deps="schannel"
3099 tls_schannel_protocol_select="tcp_protocol"
3100 tls_securetransport_protocol_deps="securetransport"
3101 tls_securetransport_protocol_select="tcp_protocol"
3102 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3103 udp_protocol_select="network"
3104 udplite_protocol_select="network"
3105 unix_protocol_deps="sys_un_h"
3106 unix_protocol_select="network"
3107
3108 # filters
3109 afftfilt_filter_deps="avcodec"
3110 afftfilt_filter_select="fft"
3111 afir_filter_deps="avcodec"
3112 afir_filter_select="fft"
3113 amovie_filter_deps="avcodec avformat"
3114 aresample_filter_deps="swresample"
3115 ass_filter_deps="libass"
3116 atempo_filter_deps="avcodec"
3117 atempo_filter_select="rdft"
3118 azmq_filter_deps="libzmq"
3119 blackframe_filter_deps="gpl"
3120 boxblur_filter_deps="gpl"
3121 bs2b_filter_deps="libbs2b"
3122 colormatrix_filter_deps="gpl"
3123 cover_rect_filter_deps="avcodec avformat gpl"
3124 cropdetect_filter_deps="gpl"
3125 deinterlace_qsv_filter_deps="libmfx"
3126 deinterlace_vaapi_filter_deps="vaapi"
3127 delogo_filter_deps="gpl"
3128 deshake_filter_select="pixelutils"
3129 drawtext_filter_deps="libfreetype"
3130 elbg_filter_deps="avcodec"
3131 eq_filter_deps="gpl"
3132 fftfilt_filter_deps="avcodec"
3133 fftfilt_filter_select="rdft"
3134 find_rect_filter_deps="avcodec avformat gpl"
3135 firequalizer_filter_deps="avcodec"
3136 firequalizer_filter_select="rdft"
3137 flite_filter_deps="libflite"
3138 framerate_filter_select="pixelutils"
3139 frei0r_filter_deps="frei0r dlopen"
3140 frei0r_src_filter_deps="frei0r dlopen"
3141 fspp_filter_deps="gpl"
3142 geq_filter_deps="gpl"
3143 histeq_filter_deps="gpl"
3144 hqdn3d_filter_deps="gpl"
3145 interlace_filter_deps="gpl"
3146 kerndeint_filter_deps="gpl"
3147 ladspa_filter_deps="ladspa dlopen"
3148 mcdeint_filter_deps="avcodec gpl"
3149 movie_filter_deps="avcodec avformat"
3150 mpdecimate_filter_deps="gpl"
3151 mpdecimate_filter_select="pixelutils"
3152 mptestsrc_filter_deps="gpl"
3153 negate_filter_deps="lut_filter"
3154 nnedi_filter_deps="gpl"
3155 ocr_filter_deps="libtesseract"
3156 ocv_filter_deps="libopencv"
3157 owdenoise_filter_deps="gpl"
3158 pan_filter_deps="swresample"
3159 perspective_filter_deps="gpl"
3160 phase_filter_deps="gpl"
3161 pp7_filter_deps="gpl"
3162 pp_filter_deps="gpl postproc"
3163 pullup_filter_deps="gpl"
3164 removelogo_filter_deps="avcodec avformat swscale"
3165 repeatfields_filter_deps="gpl"
3166 resample_filter_deps="avresample"
3167 rubberband_filter_deps="librubberband"
3168 sab_filter_deps="gpl swscale"
3169 scale2ref_filter_deps="swscale"
3170 scale_filter_deps="swscale"
3171 scale_qsv_filter_deps="libmfx"
3172 select_filter_select="pixelutils"
3173 showcqt_filter_deps="avcodec avformat swscale"
3174 showcqt_filter_select="fft"
3175 showfreqs_filter_deps="avcodec"
3176 showfreqs_filter_select="fft"
3177 showspectrum_filter_deps="avcodec"
3178 showspectrum_filter_select="fft"
3179 showspectrumpic_filter_deps="avcodec"
3180 showspectrumpic_filter_select="fft"
3181 signature_filter_deps="gpl avcodec avformat"
3182 smartblur_filter_deps="gpl swscale"
3183 sofalizer_filter_deps="libmysofa avcodec"
3184 sofalizer_filter_select="fft"
3185 spectrumsynth_filter_deps="avcodec"
3186 spectrumsynth_filter_select="fft"
3187 spp_filter_deps="gpl avcodec"
3188 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3189 stereo3d_filter_deps="gpl"
3190 subtitles_filter_deps="avformat avcodec libass"
3191 super2xsai_filter_deps="gpl"
3192 pixfmts_super2xsai_test_deps="super2xsai_filter"
3193 tinterlace_filter_deps="gpl"
3194 tinterlace_merge_test_deps="tinterlace_filter"
3195 tinterlace_pad_test_deps="tinterlace_filter"
3196 uspp_filter_deps="gpl avcodec"
3197 vaguedenoiser_filter_deps="gpl"
3198 vidstabdetect_filter_deps="libvidstab"
3199 vidstabtransform_filter_deps="libvidstab"
3200 libvmaf_filter_deps="libvmaf"
3201 zmq_filter_deps="libzmq"
3202 zoompan_filter_deps="swscale"
3203 zscale_filter_deps="libzimg"
3204 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3205
3206 # examples
3207 avio_dir_cmd_deps="avformat avutil"
3208 avio_reading_deps="avformat avcodec avutil"
3209 decode_audio_example_deps="avcodec avutil"
3210 decode_video_example_deps="avcodec avutil"
3211 demuxing_decoding_example_deps="avcodec avformat avutil"
3212 encode_audio_example_deps="avcodec avutil"
3213 encode_video_example_deps="avcodec avutil"
3214 extract_mvs_example_deps="avcodec avformat avutil"
3215 filter_audio_example_deps="avfilter avutil"
3216 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3217 filtering_video_example_deps="avfilter avcodec avformat avutil"
3218 http_multiclient_example_deps="avformat avutil fork"
3219 hw_decode_example_deps="avcodec avformat avutil"
3220 metadata_example_deps="avformat avutil"
3221 muxing_example_deps="avcodec avformat avutil swscale"
3222 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3223 remuxing_example_deps="avcodec avformat avutil"
3224 resampling_audio_example_deps="avutil swresample"
3225 scaling_video_example_deps="avutil swscale"
3226 transcode_aac_example_deps="avcodec avformat swresample"
3227 transcoding_example_deps="avfilter avcodec avformat avutil"
3228
3229 # libraries, in linking order
3230 avcodec_deps="avutil"
3231 avcodec_select="null_bsf"
3232 avdevice_deps="avformat avcodec avutil"
3233 avfilter_deps="avutil"
3234 avformat_deps="avcodec avutil"
3235 avresample_deps="avutil"
3236 postproc_deps="avutil gpl"
3237 swresample_deps="avutil"
3238 swscale_deps="avutil"
3239
3240 # programs
3241 ffmpeg_deps="avcodec avfilter avformat swresample"
3242 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3243                null_filter
3244                trim_filter"
3245 ffplay_deps="avcodec avformat swscale swresample sdl2"
3246 ffplay_extralibs='$sdl2_extralibs'
3247 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3248 ffprobe_deps="avcodec avformat"
3249 ffserver_deps="avformat fork sarestart"
3250 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3251
3252 # documentation
3253 podpages_deps="perl"
3254 manpages_deps="perl pod2man"
3255 htmlpages_deps="perl"
3256 htmlpages_deps_any="makeinfo_html texi2html"
3257 txtpages_deps="perl makeinfo"
3258 doc_deps_any="manpages htmlpages podpages txtpages"
3259
3260 # default parameters
3261
3262 logfile="ffbuild/config.log"
3263
3264 # installation paths
3265 prefix_default="/usr/local"
3266 bindir_default='${prefix}/bin'
3267 datadir_default='${prefix}/share/ffmpeg'
3268 docdir_default='${prefix}/share/doc/ffmpeg'
3269 incdir_default='${prefix}/include'
3270 libdir_default='${prefix}/lib'
3271 mandir_default='${prefix}/share/man'
3272
3273 # toolchain
3274 ar_default="ar"
3275 cc_default="gcc"
3276 cxx_default="g++"
3277 host_cc_default="gcc"
3278 doxygen_default="doxygen"
3279 install="install"
3280 ln_s_default="ln -s -f"
3281 nm_default="nm -g"
3282 pkg_config_default=pkg-config
3283 ranlib_default="ranlib"
3284 strip_default="strip"
3285 version_script='--version-script'
3286 x86asmexe_default="nasm"
3287 windres_default="windres"
3288 nvcc_default="nvcc"
3289 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3290
3291 # OS
3292 target_os_default=$(tolower $(uname -s))
3293 host_os=$target_os_default
3294
3295 # machine
3296 if test "$target_os_default" = aix; then
3297     arch_default=$(uname -p)
3298     strip_default="strip -X32_64"
3299 else
3300     arch_default=$(uname -m)
3301 fi
3302 cpu="generic"
3303 intrinsics="none"
3304
3305 # configurable options
3306 enable $PROGRAM_LIST
3307 enable $DOCUMENT_LIST
3308 enable $EXAMPLE_LIST
3309 enable $(filter_out avresample $LIBRARY_LIST)
3310 enable stripping
3311
3312 enable asm
3313 enable debug
3314 enable doc
3315 enable faan faandct faanidct
3316 enable optimizations
3317 enable runtime_cpudetect
3318 enable safe_bitstream_reader
3319 enable static
3320 enable swscale_alpha
3321 enable valgrind_backtrace
3322
3323 sws_max_filter_size_default=256
3324 set_default sws_max_filter_size
3325
3326 # build settings
3327 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3328 LIBPREF="lib"
3329 LIBSUF=".a"
3330 FULLNAME='$(NAME)$(BUILDSUF)'
3331 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3332 SLIBPREF="lib"
3333 SLIBSUF=".so"
3334 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3335 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3336 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3337 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3338 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3339 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3340 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3341
3342 asflags_filter=echo
3343 cflags_filter=echo
3344 ldflags_filter=echo
3345
3346 AS_C='-c'
3347 AS_O='-o $@'
3348 CC_C='-c'
3349 CC_E='-E -o $@'
3350 CC_O='-o $@'
3351 CXX_C='-c'
3352 CXX_O='-o $@'
3353 OBJCC_C='-c'
3354 OBJCC_E='-E -o $@'
3355 OBJCC_O='-o $@'
3356 X86ASM_O='-o $@'
3357 LD_O='-o $@'
3358 LD_LIB='-l%'
3359 LD_PATH='-L'
3360 HOSTCC_C='-c'
3361 HOSTCC_E='-E -o $@'
3362 HOSTCC_O='-o $@'
3363 HOSTLD_O='-o $@'
3364 NVCC_C='-c'
3365 NVCC_O='-o $@'
3366
3367 host_extralibs='-lm'
3368 host_cflags_filter=echo
3369 host_ldflags_filter=echo
3370
3371 target_path='$(CURDIR)'
3372
3373 # since the object filename is not given with the -MM flag, the compiler
3374 # is only able to print the basename, and we must add the path ourselves
3375 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3376 DEPFLAGS='-MM'
3377
3378 mkdir -p ffbuild
3379
3380 # find source path
3381 if test -f configure; then
3382     source_path=.
3383 else
3384     source_path=$(cd $(dirname "$0"); pwd)
3385     case "$source_path" in
3386         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3387     esac
3388     test -e "$source_path/config.h" &&
3389         die "Out of tree builds are impossible with config.h in source dir."
3390 fi
3391
3392 for v in "$@"; do
3393     r=${v#*=}
3394     l=${v%"$r"}
3395     r=$(sh_quote "$r")
3396     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3397 done
3398
3399 find_things(){
3400     thing=$1
3401     pattern=$2
3402     file=$source_path/$3
3403     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3404 }
3405
3406 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3407 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3408 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3409 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3410 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3411 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3412 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3413 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3414 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3415
3416 find_things_extern(){
3417     thing=$1
3418     pattern=$2
3419     file=$source_path/$3
3420     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3421 }
3422
3423 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3424 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3425
3426 ALL_COMPONENTS="
3427     $BSF_LIST
3428     $DECODER_LIST
3429     $DEMUXER_LIST
3430     $ENCODER_LIST
3431     $FILTER_LIST
3432     $HWACCEL_LIST
3433     $INDEV_LIST
3434     $MUXER_LIST
3435     $OUTDEV_LIST
3436     $PARSER_LIST
3437     $PROTOCOL_LIST
3438 "
3439
3440 for n in $COMPONENT_LIST; do
3441     v=$(toupper ${n%s})_LIST
3442     eval enable \$$v
3443     eval ${n}_if_any="\$$v"
3444 done
3445
3446 enable $ARCH_EXT_LIST
3447
3448 die_unknown(){
3449     echo "Unknown option \"$1\"."
3450     echo "See $0 --help for available options."
3451     exit 1
3452 }
3453
3454 print_in_columns() {
3455     cols=$(expr $ncols / 24)
3456     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3457 }
3458
3459 show_list() {
3460     suffix=_$1
3461     shift
3462     echo $* | sed s/$suffix//g | print_in_columns
3463     exit 0
3464 }
3465
3466 rand_list(){
3467     IFS=', '
3468     set -- $*
3469     unset IFS
3470     for thing; do
3471         comp=${thing%:*}
3472         prob=${thing#$comp}
3473         prob=${prob#:}
3474         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3475         echo "prob ${prob:-0.5}"
3476         printf '%s\n' $comp
3477     done
3478 }
3479
3480 do_random(){
3481     action=$1
3482     shift
3483     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3484     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3485 }
3486
3487 for opt do
3488     optval="${opt#*=}"
3489     case "$opt" in
3490         --extra-ldflags=*)
3491             add_ldflags $optval
3492         ;;
3493         --extra-ldexeflags=*)
3494             add_ldexeflags $optval
3495         ;;
3496         --extra-ldlibflags=*)
3497             add_ldlibflags $optval
3498         ;;
3499         --extra-libs=*)
3500             add_extralibs $optval
3501         ;;
3502         --disable-devices)
3503             disable $INDEV_LIST $OUTDEV_LIST
3504         ;;
3505         --enable-debug=*)
3506             debuglevel="$optval"
3507         ;;
3508         --disable-programs)
3509             disable $PROGRAM_LIST
3510         ;;
3511         --disable-everything)
3512             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3513         ;;
3514         --disable-all)
3515             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3516             disable $LIBRARY_LIST $PROGRAM_LIST doc
3517             enable avutil
3518         ;;
3519         --enable-random|--disable-random)
3520             action=${opt%%-random}
3521             do_random ${action#--} $COMPONENT_LIST
3522         ;;
3523         --enable-random=*|--disable-random=*)
3524             action=${opt%%-random=*}
3525             do_random ${action#--} $optval
3526         ;;
3527         --enable-sdl)
3528             enable sdl2
3529         ;;
3530         --enable-*=*|--disable-*=*)
3531             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3532             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3533             eval list=\$$(toupper $thing)_LIST
3534             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3535             list=$(filter "$name" $list)
3536             [ "$list" = "" ] && warn "Option $opt did not match anything"
3537             $action $list
3538         ;;
3539         --enable-yasm|--disable-yasm)
3540             warn "The ${opt} option is only provided for compatibility and will be\n"\
3541                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3542             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3543         ;;
3544         --yasmexe=*)
3545             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3546                  "removed in the future. Use --x86asmexe instead."
3547             x86asmexe="$optval"
3548         ;;
3549         --enable-?*|--disable-?*)
3550             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3551             if is_in $option $COMPONENT_LIST; then
3552                 test $action = disable && action=unset
3553                 eval $action \$$(toupper ${option%s})_LIST
3554             elif is_in $option $CMDLINE_SELECT; then
3555                 $action $option
3556             else
3557                 die_unknown $opt
3558             fi
3559         ;;
3560         --list-*)
3561             NAME="${opt#--list-}"
3562             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3563             NAME=${NAME%s}
3564             eval show_list $NAME \$$(toupper $NAME)_LIST
3565         ;;
3566         --help|-h) show_help
3567         ;;
3568         --quiet|-q) quiet=yes
3569         ;;
3570         --fatal-warnings) enable fatal_warnings
3571         ;;
3572         --libfuzzer=*)
3573             libfuzzer_path="$optval"
3574         ;;
3575         *)
3576             optname="${opt%%=*}"
3577             optname="${optname#--}"
3578             optname=$(echo "$optname" | sed 's/-/_/g')
3579             if is_in $optname $CMDLINE_SET; then
3580                 eval $optname='$optval'
3581             elif is_in $optname $CMDLINE_APPEND; then
3582                 append $optname "$optval"
3583             else
3584                 die_unknown $opt
3585             fi
3586         ;;
3587     esac
3588 done
3589
3590 for e in $env; do
3591     eval "export $e"
3592 done
3593
3594 if disabled autodetect; then
3595
3596     # Unless iconv is explicitely disabled by the user, we still want to probe
3597     # for the iconv from the libc.
3598     disabled iconv || enable libc_iconv
3599
3600     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3601     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3602 fi
3603 # Mark specifically enabled, but normally autodetected libraries as requested.
3604 for lib in $AUTODETECT_LIBS; do
3605     enabled $lib && request $lib
3606 done
3607 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3608 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3609 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3610
3611 disabled logging && logfile=/dev/null
3612
3613 die_license_disabled() {
3614     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3615 }
3616
3617 die_license_disabled_gpl() {
3618     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3619 }
3620
3621 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3622 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3623
3624 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3625 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3626
3627 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3628
3629 # Disable all the library-specific components if the library itself
3630 # is disabled, see AVCODEC_LIST and following _LIST variables.
3631
3632 disable_components(){
3633     disabled ${1} && disable $(
3634         eval components="\$$(toupper ${1})_COMPONENTS"
3635         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3636     )
3637 }
3638
3639 map 'disable_components $v' $LIBRARY_LIST
3640
3641 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3642 set >> $logfile
3643
3644 test -n "$valgrind" && toolchain="valgrind-memcheck"
3645
3646 enabled ossfuzz && {
3647     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3648     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3649 }
3650
3651 case "$toolchain" in
3652     *-asan)
3653         cc_default="${toolchain%-asan}"
3654         add_cflags  -fsanitize=address
3655         add_ldflags -fsanitize=address
3656     ;;
3657     *-msan)
3658         cc_default="${toolchain%-msan}"
3659         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3660         add_ldflags -fsanitize=memory
3661     ;;
3662     *-tsan)
3663         cc_default="${toolchain%-tsan}"
3664         add_cflags  -fsanitize=thread -fPIE
3665         add_ldflags -fsanitize=thread -pie
3666         case "$toolchain" in
3667             gcc-tsan)
3668                 add_cflags  -fPIC
3669                 add_ldflags -fPIC
3670                 ;;
3671         esac
3672     ;;
3673     *-usan)
3674         cc_default="${toolchain%-usan}"
3675         add_cflags  -fsanitize=undefined
3676         add_ldflags -fsanitize=undefined
3677     ;;
3678     valgrind-*)
3679         target_exec_default="valgrind"
3680         case "$toolchain" in
3681             valgrind-massif)
3682                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3683                 ;;
3684             valgrind-memcheck)
3685                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3686                 ;;
3687         esac
3688     ;;
3689     msvc)
3690         # Check whether the current MSVC version needs the C99 converter.
3691         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3692         # support enough of C99 to build ffmpeg. Default to the new
3693         # behaviour if the regexp was unable to match anything, since this
3694         # successfully parses the version number of existing supported
3695         # versions that require the converter (MSVC 2010 and 2012).
3696         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3697         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3698             cc_default="cl"
3699             cxx_default="cl"
3700         else
3701             cc_default="c99wrap cl"
3702             cxx_default="c99wrap cl"
3703         fi
3704         ld_default="$source_path/compat/windows/mslink"
3705         nm_default="dumpbin -symbols"
3706         ar_default="lib"
3707         case "$arch" in
3708         arm*)
3709             as_default="armasm"
3710             ;;
3711         esac
3712         target_os_default="win32"
3713         # Use a relative path for TMPDIR. This makes sure all the
3714         # ffconf temp files are written with a relative path, avoiding
3715         # issues with msys/win32 path conversion for MSVC parameters
3716         # such as -Fo<file> or -out:<file>.
3717         TMPDIR=.
3718     ;;
3719     icl)
3720         cc_default="icl"
3721         ld_default="xilink"
3722         nm_default="dumpbin -symbols"
3723         ar_default="xilib"
3724         target_os_default="win32"
3725         TMPDIR=.
3726     ;;
3727     gcov)
3728         add_cflags  -fprofile-arcs -ftest-coverage
3729         add_ldflags -fprofile-arcs -ftest-coverage
3730     ;;
3731     llvm-cov)
3732         add_cflags -fprofile-arcs -ftest-coverage
3733         add_ldflags --coverage
3734     ;;
3735     hardened)
3736         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3737         add_cflags   -fno-strict-overflow -fstack-protector-all
3738         add_ldflags  -Wl,-z,relro -Wl,-z,now
3739         add_cflags   -fPIE
3740         add_ldexeflags -fPIE -pie
3741     ;;
3742     ?*)
3743         die "Unknown toolchain $toolchain"
3744     ;;
3745 esac
3746
3747 test -n "$cross_prefix" && enable cross_compile
3748
3749 if enabled cross_compile; then
3750     test -n "$arch" && test -n "$target_os" ||
3751         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3752 fi
3753
3754 ar_default="${cross_prefix}${ar_default}"
3755 cc_default="${cross_prefix}${cc_default}"
3756 cxx_default="${cross_prefix}${cxx_default}"
3757 nm_default="${cross_prefix}${nm_default}"
3758 pkg_config_default="${cross_prefix}${pkg_config_default}"
3759 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3760     ranlib_default="${cross_prefix}${ranlib_default} -D"
3761 else
3762     ranlib_default="${cross_prefix}${ranlib_default}"
3763 fi
3764 strip_default="${cross_prefix}${strip_default}"
3765 windres_default="${cross_prefix}${windres_default}"
3766
3767 sysinclude_default="${sysroot}/usr/include"
3768
3769 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3770     target_exec target_os x86asmexe nvcc
3771 enabled cross_compile || host_cc_default=$cc
3772 set_default host_cc
3773
3774 pkg_config_fail_message=""
3775 if ! $pkg_config --version >/dev/null 2>&1; then
3776     warn "$pkg_config not found, library detection may fail."
3777     pkg_config=false
3778 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3779     pkg_config_fail_message="
3780 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3781 fi
3782
3783 if test $doxygen != $doxygen_default && \
3784   ! $doxygen --version >/dev/null 2>&1; then
3785     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3786 fi
3787
3788 exesuf() {
3789     case $1 in
3790         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3791     esac
3792 }
3793
3794 EXESUF=$(exesuf $target_os)
3795 HOSTEXESUF=$(exesuf $host_os)
3796
3797 # set temporary file name
3798 : ${TMPDIR:=$TEMPDIR}
3799 : ${TMPDIR:=$TMP}
3800 : ${TMPDIR:=/tmp}
3801
3802 if [ -n "$tempprefix" ] ; then
3803     mktemp(){
3804         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3805         echo "$tmpname"
3806         mkdir "$tmpname"
3807     }
3808 elif ! check_cmd mktemp -u XXXXXX; then
3809     # simple replacement for missing mktemp
3810     # NOT SAFE FOR GENERAL USE
3811     mktemp(){
3812         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3813         echo "$tmpname"
3814         mkdir "$tmpname"
3815     }
3816 fi
3817
3818 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3819     die "Unable to create temporary directory in $TMPDIR."
3820
3821 tmpfile(){
3822     tmp="${FFTMPDIR}/test"$2
3823     (set -C; exec > $tmp) 2> /dev/null ||
3824         die "Unable to create temporary file in $FFTMPDIR."
3825     eval $1=$tmp
3826 }
3827
3828 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3829 trap 'exit 2' INT
3830
3831 tmpfile TMPASM .asm
3832 tmpfile TMPC   .c
3833 tmpfile TMPCPP .cpp
3834 tmpfile TMPE   $EXESUF
3835 tmpfile TMPH   .h
3836 tmpfile TMPM   .m
3837 tmpfile TMPO   .o
3838 tmpfile TMPS   .S
3839 tmpfile TMPSH  .sh
3840 tmpfile TMPV   .ver
3841
3842 unset -f mktemp
3843
3844 chmod +x $TMPE
3845
3846 # make sure we can execute files in $TMPDIR
3847 cat > $TMPSH 2>> $logfile <<EOF
3848 #! /bin/sh
3849 EOF
3850 chmod +x $TMPSH >> $logfile 2>&1
3851 if ! $TMPSH >> $logfile 2>&1; then
3852     cat <<EOF
3853 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3854 variable to another directory and make sure that it is not mounted noexec.
3855 EOF
3856     die "Sanity test failed."
3857 fi
3858
3859 armasm_flags(){
3860     for flag; do
3861         case $flag in
3862             # Filter out MSVC cl.exe options from cflags that shouldn't
3863             # be passed to gas-preprocessor
3864             -M[TD]*)                                            ;;
3865             *)                  echo $flag                      ;;
3866         esac
3867    done
3868 }
3869
3870 ccc_flags(){
3871     for flag; do
3872         case $flag in
3873             -std=c99)           echo -c99                       ;;
3874             -mcpu=*)            echo -arch ${flag#*=}           ;;
3875             -mieee)             echo -ieee                      ;;
3876             -O*|-fast)          echo $flag                      ;;
3877             -fno-math-errno)    echo -assume nomath_errno       ;;
3878             -g)                 echo -g3                        ;;
3879             -Wall)              echo -msg_enable level2         ;;
3880             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3881             -Wl,*)              echo $flag                      ;;
3882             -f*|-W*)                                            ;;
3883             *)                  echo $flag                      ;;
3884         esac
3885    done
3886 }
3887
3888 cparser_flags(){
3889     for flag; do
3890         case $flag in
3891             -Wno-switch)             echo -Wno-switch-enum ;;
3892             -Wno-format-zero-length) ;;
3893             -Wdisabled-optimization) ;;
3894             -Wno-pointer-sign)       echo -Wno-other ;;
3895             *)                       echo $flag ;;
3896         esac
3897     done
3898 }
3899
3900 msvc_common_flags(){
3901     for flag; do
3902         case $flag in
3903             # In addition to specifying certain flags under the compiler
3904             # specific filters, they must be specified here as well or else the
3905             # generic catch all at the bottom will print the original flag.
3906             -Wall)                ;;
3907             -Wextra)              ;;
3908             -std=c99)             ;;
3909             # Common flags
3910             -fomit-frame-pointer) ;;
3911             -g)                   echo -Z7 ;;
3912             -fno-math-errno)      ;;
3913             -fno-common)          ;;
3914             -fno-signed-zeros)    ;;
3915             -fPIC)                ;;
3916             -mthumb)              ;;
3917             -march=*)             ;;
3918             -lz)                  echo zlib.lib ;;
3919             -lx264)               echo libx264.lib ;;
3920             -lstdc++)             ;;
3921             -l*)                  echo ${flag#-l}.lib ;;
3922             -LARGEADDRESSAWARE)   echo $flag ;;
3923             -L*)                  echo -libpath:${flag#-L} ;;
3924             *)                    echo $flag ;;
3925         esac
3926     done
3927 }
3928
3929 msvc_flags(){
3930     msvc_common_flags "$@"
3931     for flag; do
3932         case $flag in
3933             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3934                                        -wd4554 ;;
3935             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3936                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3937                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3938                                        -wd4307 \
3939                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3940         esac
3941     done
3942 }
3943
3944 icl_flags(){
3945     msvc_common_flags "$@"
3946     for flag; do
3947         case $flag in
3948             # Despite what Intel's documentation says -Wall, which is supported
3949             # on Windows, does enable remarks so disable them here.
3950             -Wall)                echo $flag -Qdiag-disable:remark ;;
3951             -std=c99)             echo -Qstd=c99 ;;
3952             -flto)                echo -ipo ;;
3953         esac
3954     done
3955 }
3956
3957 icc_flags(){
3958     for flag; do
3959         case $flag in
3960             -flto)                echo -ipo ;;
3961             *)                    echo $flag ;;
3962         esac
3963     done
3964 }
3965
3966 pgi_flags(){
3967     for flag; do
3968         case $flag in
3969             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3970             -fomit-frame-pointer) echo -Mnoframe ;;
3971             -g)                   echo -gopt ;;
3972             *)                    echo $flag ;;
3973         esac
3974     done
3975 }
3976
3977 suncc_flags(){
3978     for flag; do
3979         case $flag in
3980             -march=*|-mcpu=*)
3981                 case "${flag#*=}" in
3982                     native)                   echo -xtarget=native       ;;
3983                     v9|niagara)               echo -xarch=sparc          ;;
3984                     ultrasparc)               echo -xarch=sparcvis       ;;
3985                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3986                     i586|pentium)             echo -xchip=pentium        ;;
3987                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3988                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3989                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3990                     pentium4*)          echo -xtarget=pentium4           ;;
3991                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3992                     *-sse3)             echo -xarch=sse3                 ;;
3993                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3994                     bonnell)                   echo -xarch=ssse3         ;;
3995                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3996                     westmere)                  echo -xtarget=westmere    ;;
3997                     silvermont)                echo -xarch=sse4_2        ;;
3998                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3999                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4000                                                echo -xarch=avx           ;;
4001                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4002                     btver1)                    echo -xarch=amdsse4a      ;;
4003                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4004                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4005                     k8|opteron|athlon64|athlon-fx)
4006                                                echo -xarch=sse2a         ;;
4007                     athlon*)                   echo -xarch=pentium_proa  ;;
4008                 esac
4009                 ;;
4010             -std=c99)             echo -xc99              ;;
4011             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4012             -fPIC)                echo -KPIC -xcode=pic32 ;;
4013             -W*,*)                echo $flag              ;;
4014             -f*-*|-W*|-mimpure-text)                      ;;
4015             -shared)              echo -G                 ;;
4016             *)                    echo $flag              ;;
4017         esac
4018     done
4019 }
4020
4021 tms470_flags(){
4022     for flag; do
4023         case $flag in
4024             -march=*|-mcpu=*)
4025                 case "${flag#*=}" in
4026                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4027                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4028                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4029                     armv6*|arm11*)          echo -mv=6   ;;
4030                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4031                                             echo -mv=5e  ;;
4032                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4033                 esac
4034                 ;;
4035             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4036             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4037             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4038             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4039             -msoft-float)   echo --float_support=vfplib       ;;
4040             -O[0-3]|-mf=*)  echo $flag                        ;;
4041             -g)             echo -g -mn                       ;;
4042             -pds=*)         echo $flag                        ;;
4043             -D*|-I*)        echo $flag                        ;;
4044             --gcc|--abi=*)  echo $flag                        ;;
4045             -me)            echo $flag                        ;;
4046         esac
4047     done
4048 }
4049
4050 probe_cc(){
4051     pfx=$1
4052     _cc=$2
4053     first=$3
4054
4055     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4056     unset _ld_o _ldflags _ld_lib _ld_path
4057     unset _depflags _DEPCMD _DEPFLAGS
4058     _flags_filter=echo
4059
4060     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4061         true # no-op to avoid reading stdin in following checks
4062     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4063         _type=llvm_gcc
4064         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4065         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4066         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4067         _cflags_speed='-O3'
4068         _cflags_size='-Os'
4069     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4070         _type=gcc
4071         gcc_version=$($_cc --version | head -n1)
4072         gcc_basever=$($_cc -dumpversion)
4073         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4074         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4075         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4076         case $gcc_basever in
4077             2) ;;
4078             2.*) ;;
4079             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4080         esac
4081         if [ "$first" = true ]; then
4082             case $gcc_basever in
4083                 4.2*)
4084                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4085             esac
4086         fi
4087         _cflags_speed='-O3'
4088         _cflags_size='-Os'
4089     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4090         _type=icc
4091         _ident=$($_cc --version | head -n1)
4092         _depflags='-MMD'
4093         _cflags_speed='-O3'
4094         _cflags_size='-Os'
4095         _cflags_noopt='-O1'
4096         _flags_filter=icc_flags
4097     elif $_cc -v 2>&1 | grep -q xlc; then
4098         _type=xlc
4099         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4100         _cflags_speed='-O5'
4101         _cflags_size='-O5 -qcompact'
4102     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4103         _type=ccc
4104         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4105         _DEPFLAGS='-M'
4106         _cflags_speed='-fast'
4107         _cflags_size='-O1'
4108         _flags_filter=ccc_flags
4109     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4110         test -d "$sysroot" || die "No valid sysroot specified."
4111         _type=armcc
4112         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4113         armcc_conf="$PWD/armcc.conf"
4114         $_cc --arm_linux_configure                 \
4115              --arm_linux_config_file="$armcc_conf" \
4116              --configure_sysroot="$sysroot"        \
4117              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4118              die "Error creating armcc configuration file."
4119         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4120         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4121         as_default="${cross_prefix}gcc"
4122         _depflags='-MMD'
4123         _cflags_speed='-O3'
4124         _cflags_size='-Os'
4125     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4126         _type=tms470
4127         _ident=$($_cc -version | head -n1 | tr -s ' ')
4128         _flags='--gcc --abi=eabi -me'
4129         _cc_e='-ppl -fe=$@'
4130         _cc_o='-fe=$@'
4131         _depflags='-ppa -ppd=$(@:.o=.d)'
4132         _cflags_speed='-O3 -mf=5'
4133         _cflags_size='-O3 -mf=2'
4134         _flags_filter=tms470_flags
4135     elif $_cc -v 2>&1 | grep -q clang; then
4136         _type=clang
4137         _ident=$($_cc --version 2>/dev/null | head -n1)
4138         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4139         _cflags_speed='-O3'
4140         _cflags_size='-Oz'
4141     elif $_cc -V 2>&1 | grep -q Sun; then
4142         _type=suncc
4143         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4144         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4145         _DEPFLAGS='-xM1 -xc99'
4146         _ldflags='-std=c99'
4147         _cflags_speed='-O5'
4148         _cflags_size='-O5 -xspace'
4149         _flags_filter=suncc_flags
4150     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4151         _type=pathscale
4152         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4153         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4154         _cflags_speed='-O2'
4155         _cflags_size='-Os'
4156         _flags_filter='filter_out -Wdisabled-optimization'
4157     elif $_cc -v 2>&1 | grep -q Open64; then
4158         _type=open64
4159         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4160         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4161         _cflags_speed='-O2'
4162         _cflags_size='-Os'
4163         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4164     elif $_cc -V 2>&1 | grep -q Portland; then
4165         _type=pgi
4166         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4167         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4168         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4169         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4170         _cflags_noopt="-O"
4171         _flags_filter=pgi_flags
4172     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4173         _type=armasm
4174         _ident=$($_cc | head -n1)
4175         # 4509: "This form of conditional instruction is deprecated"
4176         _flags="-nologo -ignore 4509"
4177         _flags_filter=armasm_flags
4178     elif $_cc 2>&1 | grep -q Intel; then
4179         _type=icl
4180         _ident=$($_cc 2>&1 | head -n1)
4181         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4182         # Not only is O3 broken on 13.x+ but it is slower on all previous
4183         # versions (tested) as well.
4184         _cflags_speed="-O2"
4185         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4186         if $_cc 2>&1 | grep -q Linker; then
4187             _ld_o='-out:$@'
4188         else
4189             _ld_o='-Fe$@'
4190         fi
4191         _cc_o='-Fo$@'
4192         _cc_e='-P'
4193         _flags_filter=icl_flags
4194         _ld_lib='lib%.a'
4195         _ld_path='-libpath:'
4196         # -Qdiag-error to make icl error when seeing certain unknown arguments
4197         _flags='-nologo -Qdiag-error:4044,10157'
4198         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4199         # with MSVC which enables it by default.
4200         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4201         disable stripping
4202     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4203         # lld can emulate multiple different linkers; in ms link.exe mode,
4204         # the -? parameter gives the help output which contains an identifyable
4205         # string, while it gives an error in other modes.
4206         _type=lld-link
4207         # The link.exe mode doesn't have a switch for getting the version,
4208         # but we can force it back to gnu mode and get the version from there.
4209         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4210         _ld_o='-out:$@'
4211         _flags_filter=msvc_flags
4212         _ld_lib='lib%.a'
4213         _ld_path='-libpath:'
4214     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4215         _type=msvc
4216         _ident=$($_cc 2>&1 | head -n1)
4217         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4218         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4219         _cflags_speed="-O2"
4220         _cflags_size="-O1"
4221         _cflags_noopt="-O1"
4222         if $_cc -nologo- 2>&1 | grep -q Linker; then
4223             _ld_o='-out:$@'
4224         else
4225             _ld_o='-Fe$@'
4226         fi
4227         _cc_o='-Fo$@'
4228         _cc_e='-P -Fi$@'
4229         _flags_filter=msvc_flags
4230         _ld_lib='lib%.a'
4231         _ld_path='-libpath:'
4232         _flags='-nologo'
4233         disable stripping
4234     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4235         _type=cparser
4236         _ident=$($_cc --version | head -n1)
4237         _depflags='-MMD'
4238         _cflags_speed='-O4'
4239         _cflags_size='-O2'
4240         _flags_filter=cparser_flags
4241     fi
4242
4243     eval ${pfx}_type=\$_type
4244     eval ${pfx}_ident=\$_ident
4245 }
4246
4247 set_ccvars(){
4248     eval ${1}_C=\${_cc_c-\${${1}_C}}
4249     eval ${1}_E=\${_cc_e-\${${1}_E}}
4250     eval ${1}_O=\${_cc_o-\${${1}_O}}
4251
4252     if [ -n "$_depflags" ]; then
4253         eval ${1}_DEPFLAGS=\$_depflags
4254     else
4255         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4256         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4257         eval DEP${1}FLAGS=\$_flags
4258     fi
4259 }
4260
4261 probe_cc cc "$cc" "true"
4262 cflags_filter=$_flags_filter
4263 cflags_speed=$_cflags_speed
4264 cflags_size=$_cflags_size
4265 cflags_noopt=$_cflags_noopt
4266 add_cflags $_flags $_cflags
4267 cc_ldflags=$_ldflags
4268 set_ccvars CC
4269 set_ccvars CXX
4270
4271 probe_cc hostcc "$host_cc"
4272 host_cflags_filter=$_flags_filter
4273 host_cflags_speed=$_cflags_speed
4274 add_host_cflags  $_flags $_cflags
4275 set_ccvars HOSTCC
4276
4277 test -n "$cc_type" && enable $cc_type ||
4278     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4279
4280 : ${as_default:=$cc}
4281 : ${objcc_default:=$cc}
4282 : ${dep_cc_default:=$cc}
4283 : ${ld_default:=$cc}
4284 : ${host_ld_default:=$host_cc}
4285 set_default ar as objcc dep_cc ld ln_s host_ld windres
4286
4287 probe_cc as "$as"
4288 asflags_filter=$_flags_filter
4289 add_asflags $_flags $_cflags
4290 set_ccvars AS
4291
4292 probe_cc objcc "$objcc"
4293 objcflags_filter=$_flags_filter
4294 add_objcflags $_flags $_cflags
4295 set_ccvars OBJC
4296
4297 probe_cc ld "$ld"
4298 ldflags_filter=$_flags_filter
4299 add_ldflags $_flags $_ldflags
4300 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4301 LD_O=${_ld_o-$LD_O}
4302 LD_LIB=${_ld_lib-$LD_LIB}
4303 LD_PATH=${_ld_path-$LD_PATH}
4304
4305 probe_cc hostld "$host_ld"
4306 host_ldflags_filter=$_flags_filter
4307 add_host_ldflags $_flags $_ldflags
4308 HOSTLD_O=${_ld_o-$HOSTLD_O}
4309
4310 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4311     probe_cc depcc "$dep_cc"
4312     CCDEP=${_DEPCMD:-$DEPCMD}
4313     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4314     DEPCCFLAGS=$_flags
4315 fi
4316
4317 if $ar 2>&1 | grep -q Microsoft; then
4318     arflags="-nologo"
4319     ar_o='-out:$@'
4320 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4321     arflags="rq"
4322     ar_o='$@'
4323 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4324     arflags='-Xany -r -c'
4325     ar_o='$@'
4326 elif $ar 2>&1 | grep -q "\[D\] "; then
4327     arflags="rcD"
4328     ar_o='$@'
4329 else
4330     arflags="rc"
4331     ar_o='$@'
4332 fi
4333
4334 add_cflags $extra_cflags
4335 add_cxxflags $extra_cxxflags
4336 add_objcflags $extra_objcflags
4337 add_asflags $extra_cflags
4338
4339 if test -n "$sysroot"; then
4340     case "$cc_type" in
4341         gcc|llvm_gcc|clang)
4342             add_cppflags --sysroot="$sysroot"
4343             add_ldflags --sysroot="$sysroot"
4344 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4345             add_cppflags -isysroot "$sysroot"
4346             add_ldflags -isysroot "$sysroot"
4347         ;;
4348         tms470)
4349             add_cppflags -I"$sysinclude"
4350             add_ldflags  --sysroot="$sysroot"
4351         ;;
4352     esac
4353 fi
4354
4355 if test "$cpu" = host; then
4356     enabled cross_compile &&
4357         die "--cpu=host makes no sense when cross-compiling."
4358
4359     case "$cc_type" in
4360         gcc|llvm_gcc)
4361             check_native(){
4362                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4363                 sed -n "/cc1.*$1=/{
4364                             s/.*$1=\\([^ ]*\\).*/\\1/
4365                             p
4366                             q
4367                         }" $TMPE
4368             }
4369             cpu=$(check_native -march || check_native -mcpu)
4370         ;;
4371         clang)
4372             check_native(){
4373                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4374                 sed -n "/cc1.*-target-cpu /{
4375                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4376                             p
4377                             q
4378                         }" $TMPE
4379             }
4380             cpu=$(check_native -march)
4381         ;;
4382     esac
4383
4384     test "${cpu:-host}" = host &&
4385         die "--cpu=host not supported with compiler $cc"
4386 fi
4387
4388 # Deal with common $arch aliases
4389 case "$arch" in
4390     aarch64|arm64)
4391         arch="aarch64"
4392     ;;
4393     arm*|iPad*|iPhone*)
4394         arch="arm"
4395     ;;
4396     mips*|IP*)
4397         case "$arch" in
4398         *el)
4399             add_cppflags -EL
4400             add_ldflags -EL
4401         ;;
4402         *eb)
4403             add_cppflags -EB
4404             add_ldflags -EB
4405         ;;
4406         esac
4407         arch="mips"
4408     ;;
4409     parisc*|hppa*)
4410         arch="parisc"
4411     ;;
4412     "Power Macintosh"|ppc*|powerpc*)
4413         arch="ppc"
4414     ;;
4415     s390|s390x)
4416         arch="s390"
4417     ;;
4418     sh4|sh)
4419         arch="sh4"
4420     ;;
4421     sun4*|sparc*)
4422         arch="sparc"
4423     ;;
4424     tilegx|tile-gx)
4425         arch="tilegx"
4426     ;;
4427     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4428         arch="x86"
4429     ;;
4430 esac
4431
4432 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4433 enable $arch
4434
4435 # Add processor-specific flags
4436 if enabled aarch64; then
4437
4438     case $cpu in
4439         armv*)
4440             cpuflags="-march=$cpu"
4441         ;;
4442         *)
4443             cpuflags="-mcpu=$cpu"
4444         ;;
4445     esac
4446
4447 elif enabled alpha; then
4448
4449     cpuflags="-mcpu=$cpu"
4450
4451 elif enabled arm; then
4452
4453     check_arm_arch() {
4454         check_cpp_condition stddef.h \
4455             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4456             $cpuflags
4457     }
4458
4459     probe_arm_arch() {
4460         if   check_arm_arch 4;        then echo armv4
4461         elif check_arm_arch 4T;       then echo armv4t
4462         elif check_arm_arch 5;        then echo armv5
4463         elif check_arm_arch 5E;       then echo armv5e
4464         elif check_arm_arch 5T;       then echo armv5t
4465         elif check_arm_arch 5TE;      then echo armv5te
4466         elif check_arm_arch 5TEJ;     then echo armv5te
4467         elif check_arm_arch 6;        then echo armv6
4468         elif check_arm_arch 6J;       then echo armv6j
4469         elif check_arm_arch 6K;       then echo armv6k
4470         elif check_arm_arch 6Z;       then echo armv6z
4471         elif check_arm_arch 6ZK;      then echo armv6zk
4472         elif check_arm_arch 6T2;      then echo armv6t2
4473         elif check_arm_arch 7;        then echo armv7
4474         elif check_arm_arch 7A  7_A;  then echo armv7-a
4475         elif check_arm_arch 7S;       then echo armv7-a
4476         elif check_arm_arch 7R  7_R;  then echo armv7-r
4477         elif check_arm_arch 7M  7_M;  then echo armv7-m
4478         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4479         elif check_arm_arch 8A  8_A;  then echo armv8-a
4480         fi
4481     }
4482
4483     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4484
4485     case $cpu in
4486         armv*)
4487             cpuflags="-march=$cpu"
4488             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4489         ;;
4490         *)
4491             cpuflags="-mcpu=$cpu"
4492             case $cpu in
4493                 cortex-a*)                               subarch=armv7a  ;;
4494                 cortex-r*)                               subarch=armv7r  ;;
4495                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4496                 arm11*)                                  subarch=armv6   ;;
4497                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4498                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4499                 *)                             subarch=$(probe_arm_arch) ;;
4500             esac
4501         ;;
4502     esac
4503
4504     case "$subarch" in
4505         armv5t*)    enable fast_clz                ;;
4506         armv[6-8]*)
4507             enable fast_clz
4508             disabled fast_unaligned || enable fast_unaligned
4509             ;;
4510     esac
4511
4512 elif enabled avr32; then
4513
4514     case $cpu in
4515         ap7[02]0[0-2])
4516             subarch="avr32_ap"
4517             cpuflags="-mpart=$cpu"
4518         ;;
4519         ap)
4520             subarch="avr32_ap"
4521             cpuflags="-march=$cpu"
4522         ;;
4523         uc3[ab]*)
4524             subarch="avr32_uc"
4525             cpuflags="-mcpu=$cpu"
4526         ;;
4527         uc)
4528             subarch="avr32_uc"
4529             cpuflags="-march=$cpu"
4530         ;;
4531     esac
4532
4533 elif enabled bfin; then
4534
4535     cpuflags="-mcpu=$cpu"
4536
4537 elif enabled mips; then
4538
4539     cpuflags="-march=$cpu"
4540
4541     if [ "$cpu" != "generic" ]; then
4542         disable mips32r2
4543         disable mips32r5
4544         disable mips64r2
4545         disable mips32r6
4546         disable mips64r6
4547         disable loongson2
4548         disable loongson3
4549
4550         case $cpu in
4551             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4552                 enable mips32r2
4553                 disable msa
4554             ;;
4555             p5600|i6400|p6600)
4556                 disable mipsdsp
4557                 disable mipsdspr2
4558             ;;
4559             loongson*)
4560                 enable loongson2
4561                 enable loongson3
4562                 enable local_aligned_8 local_aligned_16 local_aligned_32
4563                 enable simd_align_16
4564                 enable fast_64bit
4565                 enable fast_clz
4566                 enable fast_cmov
4567                 enable fast_unaligned
4568                 disable aligned_stack
4569                 disable mipsfpu
4570                 disable mipsdsp
4571                 disable mipsdspr2
4572                 case $cpu in
4573                     loongson3*)
4574                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4575                     ;;
4576                     loongson2e)
4577                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4578                     ;;
4579                     loongson2f)
4580                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4581                     ;;
4582                 esac
4583             ;;
4584             *)
4585                 # Unknown CPU. Disable everything.
4586                 warn "unknown CPU. Disabling all MIPS optimizations."
4587                 disable mipsfpu
4588                 disable mipsdsp
4589                 disable mipsdspr2
4590                 disable msa
4591                 disable mmi
4592             ;;
4593         esac
4594
4595         case $cpu in
4596             24kc)
4597                 disable mipsfpu
4598                 disable mipsdsp
4599                 disable mipsdspr2
4600             ;;
4601             24kf*)
4602                 disable mipsdsp
4603                 disable mipsdspr2
4604             ;;
4605             24kec|34kc|1004kc)
4606                 disable mipsfpu
4607                 disable mipsdspr2
4608             ;;
4609             24kef*|34kf*|1004kf*)
4610                 disable mipsdspr2
4611             ;;
4612             74kc)
4613                 disable mipsfpu
4614             ;;
4615             p5600)
4616                 enable mips32r5
4617                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4618             ;;
4619             i6400)
4620                 enable mips64r6
4621                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4622             ;;
4623             p6600)
4624                 enable mips64r6
4625                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4626             ;;
4627         esac
4628     else
4629         # We do not disable anything. Is up to the user to disable the unwanted features.
4630         warn 'generic cpu selected'
4631     fi
4632
4633 elif enabled ppc; then
4634
4635     disable ldbrx
4636
4637     case $(tolower $cpu) in
4638         601|ppc601|powerpc601)
4639             cpuflags="-mcpu=601"
4640             disable altivec
4641         ;;
4642         603*|ppc603*|powerpc603*)
4643             cpuflags="-mcpu=603"
4644             disable altivec
4645         ;;
4646         604*|ppc604*|powerpc604*)
4647             cpuflags="-mcpu=604"
4648             disable altivec
4649         ;;
4650         g3|75*|ppc75*|powerpc75*)
4651             cpuflags="-mcpu=750"
4652             disable altivec
4653         ;;
4654         g4|745*|ppc745*|powerpc745*)
4655             cpuflags="-mcpu=7450"
4656             disable vsx
4657         ;;
4658         74*|ppc74*|powerpc74*)
4659             cpuflags="-mcpu=7400"
4660             disable vsx
4661         ;;
4662         g5|970|ppc970|powerpc970)
4663             cpuflags="-mcpu=970"
4664             disable vsx
4665         ;;
4666         power[3-6]*)
4667             cpuflags="-mcpu=$cpu"
4668             disable vsx
4669         ;;
4670         power[7-8]*)
4671             cpuflags="-mcpu=$cpu"
4672         ;;
4673         cell)
4674             cpuflags="-mcpu=cell"
4675             enable ldbrx
4676             disable vsx
4677         ;;
4678         e500mc)
4679             cpuflags="-mcpu=e500mc"
4680             disable altivec
4681         ;;
4682         e500v2)
4683             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4684             disable altivec
4685             disable dcbzl
4686         ;;
4687         e500)
4688             cpuflags="-mcpu=8540 -mhard-float"
4689             disable altivec
4690             disable dcbzl
4691         ;;
4692     esac
4693
4694 elif enabled sparc; then
4695
4696     case $cpu in
4697         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4698             cpuflags="-mcpu=$cpu"
4699         ;;
4700         ultrasparc*|niagara[234])
4701             cpuflags="-mcpu=$cpu"
4702         ;;
4703     esac
4704
4705 elif enabled x86; then
4706
4707     case $cpu in
4708         i[345]86|pentium)
4709             cpuflags="-march=$cpu"
4710             disable i686
4711             disable mmx
4712         ;;
4713         # targets that do NOT support nopl and conditional mov (cmov)
4714         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4715             cpuflags="-march=$cpu"
4716             disable i686
4717         ;;
4718         # targets that do support nopl and conditional mov (cmov)
4719         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4720         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4721         |amdfam10|barcelona|b[dt]ver*|znver*)
4722             cpuflags="-march=$cpu"
4723             enable i686
4724             enable fast_cmov
4725         ;;
4726         # targets that do support conditional mov but on which it's slow
4727         pentium4|pentium4m|prescott|nocona)
4728             cpuflags="-march=$cpu"
4729             enable i686
4730             disable fast_cmov
4731         ;;
4732     esac
4733
4734 fi
4735
4736 if [ "$cpu" != generic ]; then
4737     add_cflags  $cpuflags
4738     add_asflags $cpuflags
4739     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4740 fi
4741
4742 # compiler sanity check
4743 check_exec <<EOF
4744 int main(void){ return 0; }
4745 EOF
4746 if test "$?" != 0; then
4747     echo "$cc is unable to create an executable file."
4748     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4749         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4750         echo "Only do this if you know what cross compiling means."
4751     fi
4752     die "C compiler test failed."
4753 fi
4754
4755 add_cppflags -D_ISOC99_SOURCE
4756 add_cxxflags -D__STDC_CONSTANT_MACROS
4757 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4758
4759 # some compilers silently accept -std=c11, so we also need to check that the
4760 # version macro is defined properly
4761 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4762     add_cflags -std=c11
4763 else
4764     check_cflags -std=c99
4765 fi
4766
4767 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4768 #include <stdlib.h>
4769 EOF
4770 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4771 #include <stdlib.h>
4772 EOF
4773
4774 add_host_cppflags -D_ISOC99_SOURCE
4775 check_host_cflags -std=c99
4776 check_host_cflags -Wall
4777 check_host_cflags $host_cflags_speed
4778
4779 check_64bit(){
4780     arch32=$1
4781     arch64=$2
4782     expr=$3
4783     check_code cc "" "int test[2*($expr) - 1]" &&
4784         subarch=$arch64 || subarch=$arch32
4785 }
4786
4787 case "$arch" in
4788     aarch64|alpha|ia64)
4789         spic=$shared
4790     ;;
4791     mips)
4792         check_64bit mips mips64 '_MIPS_SIM > 1'
4793         spic=$shared
4794     ;;
4795     parisc)
4796         check_64bit parisc parisc64 'sizeof(void *) > 4'
4797         spic=$shared
4798     ;;
4799     ppc)
4800         check_64bit ppc ppc64 'sizeof(void *) > 4'
4801         spic=$shared
4802     ;;
4803     s390)
4804         check_64bit s390 s390x 'sizeof(void *) > 4'
4805         spic=$shared
4806     ;;
4807     sparc)
4808         check_64bit sparc sparc64 'sizeof(void *) > 4'
4809         spic=$shared
4810     ;;
4811     x86)
4812         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4813         # Treat x32 as x64 for now. Note it also needs spic=$shared
4814         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4815             subarch=x86_64
4816         if test "$subarch" = "x86_64"; then
4817             spic=$shared
4818         fi
4819     ;;
4820     ppc)
4821         check_cc <<EOF && subarch="ppc64"
4822         int test[(int)sizeof(char*) - 7];
4823 EOF
4824     ;;
4825 esac
4826
4827 enable $subarch
4828 enabled spic && enable_weak pic
4829
4830 enabled x86_64 && objformat=elf64 || objformat="elf32"
4831
4832 # OS specific
4833 case $target_os in
4834     aix)
4835         SHFLAGS=-shared
4836         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4837         enabled shared && add_ldflags -Wl,-brtl
4838         ;;
4839     android)
4840         disable symver
4841         enable section_data_rel_ro
4842         SLIB_INSTALL_NAME='$(SLIBNAME)'
4843         SLIB_INSTALL_LINKS=
4844         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4845         ;;
4846     haiku)
4847         prefix_default="/boot/common"
4848         network_extralibs="-lnetwork"
4849         host_extralibs=
4850         ;;
4851     sunos)
4852         SHFLAGS='-shared -Wl,-h,$$(@F)'
4853         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4854         network_extralibs="-lsocket -lnsl"
4855         add_cppflags -D__EXTENSIONS__
4856         # When using suncc to build, the Solaris linker will mark
4857         # an executable with each instruction set encountered by
4858         # the Solaris assembler.  As our libraries contain their own
4859         # guards for processor-specific code, instead suppress
4860         # generation of the HWCAPS ELF section on Solaris x86 only.
4861         enabled_all suncc x86 &&
4862             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4863             add_ldflags -Wl,-M,mapfile
4864         nm_default='nm -P -g'
4865         version_script='-M'
4866         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'