build: make jack part of the autodetected libraries
[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-schannel       disable SChannel SSP, needed for TLS support on
292                            Windows if openssl and gnutls are not used [autodetect]
293   --disable-sdl2           disable sdl2 [autodetect]
294   --disable-securetransport disable Secure Transport, needed for TLS support
295                            on OSX if openssl and gnutls are not used [autodetect]
296   --disable-xlib           disable xlib [autodetect]
297   --disable-zlib           disable zlib [autodetect]
298
299   The following libraries provide various hardware acceleration features:
300   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
301   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
302   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
303   --disable-cuvid          disable Nvidia CUVID support [autodetect]
304   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
305   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
306   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
307   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
308   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
309   --disable-nvenc          disable Nvidia video encoding code [autodetect]
310   --enable-omx             enable OpenMAX IL code [no]
311   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
312   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
313   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
314   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
315   --disable-videotoolbox   disable VideoToolbox code [autodetect]
316
317 Toolchain options:
318   --arch=ARCH              select architecture [$arch]
319   --cpu=CPU                select the minimum required CPU (affects
320                            instruction selection, may crash on older CPUs)
321   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
322   --progs-suffix=SUFFIX    program name suffix []
323   --enable-cross-compile   assume a cross-compiler is used
324   --sysroot=PATH           root of cross-build tree
325   --sysinclude=PATH        location of cross-build system headers
326   --target-os=OS           compiler targets OS [$target_os]
327   --target-exec=CMD        command to run executables on target
328   --target-path=DIR        path to view of build directory on target
329   --target-samples=DIR     path to samples directory on target
330   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
331   --toolchain=NAME         set tool defaults according to NAME
332   --nm=NM                  use nm tool NM [$nm_default]
333   --ar=AR                  use archive tool AR [$ar_default]
334   --as=AS                  use assembler AS [$as_default]
335   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
336   --strip=STRIP            use strip tool STRIP [$strip_default]
337   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
338   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
339   --cc=CC                  use C compiler CC [$cc_default]
340   --cxx=CXX                use C compiler CXX [$cxx_default]
341   --objcc=OCC              use ObjC compiler OCC [$cc_default]
342   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
343   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
344   --ld=LD                  use linker LD [$ld_default]
345   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
346   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
347   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
348   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
349   --host-cc=HOSTCC         use host C compiler HOSTCC
350   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
351   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
352   --host-ld=HOSTLD         use host linker HOSTLD
353   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
354   --host-libs=HLIBS        use libs HLIBS when linking for host
355   --host-os=OS             compiler host OS [$target_os]
356   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
357   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
358   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
359   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
360   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
361   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
362   --extra-libs=ELIBS       add ELIBS [$ELIBS]
363   --extra-version=STRING   version string suffix []
364   --optflags=OPTFLAGS      override optimization-related compiler flags
365   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
366   --build-suffix=SUFFIX    library name suffix []
367   --enable-pic             build position-independent code
368   --enable-thumb           compile for Thumb instruction set
369   --enable-lto             use link-time optimization
370   --env="ENV=override"     override the environment variables
371
372 Advanced options (experts only):
373   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
374   --custom-allocator=NAME  use a supported custom allocator
375   --disable-symver         disable symbol versioning
376   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
377   --disable-safe-bitstream-reader
378                            disable buffer boundary checking in bitreaders
379                            (faster, but may crash)
380   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
381
382 Optimization options (experts only):
383   --disable-asm            disable all assembly optimizations
384   --disable-altivec        disable AltiVec optimizations
385   --disable-vsx            disable VSX optimizations
386   --disable-power8         disable POWER8 optimizations
387   --disable-amd3dnow       disable 3DNow! optimizations
388   --disable-amd3dnowext    disable 3DNow! extended optimizations
389   --disable-mmx            disable MMX optimizations
390   --disable-mmxext         disable MMXEXT optimizations
391   --disable-sse            disable SSE optimizations
392   --disable-sse2           disable SSE2 optimizations
393   --disable-sse3           disable SSE3 optimizations
394   --disable-ssse3          disable SSSE3 optimizations
395   --disable-sse4           disable SSE4 optimizations
396   --disable-sse42          disable SSE4.2 optimizations
397   --disable-avx            disable AVX optimizations
398   --disable-xop            disable XOP optimizations
399   --disable-fma3           disable FMA3 optimizations
400   --disable-fma4           disable FMA4 optimizations
401   --disable-avx2           disable AVX2 optimizations
402   --disable-aesni          disable AESNI optimizations
403   --disable-armv5te        disable armv5te optimizations
404   --disable-armv6          disable armv6 optimizations
405   --disable-armv6t2        disable armv6t2 optimizations
406   --disable-vfp            disable VFP optimizations
407   --disable-neon           disable NEON optimizations
408   --disable-inline-asm     disable use of inline assembly
409   --disable-x86asm         disable use of standalone x86 assembly
410   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
411   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
412   --disable-msa            disable MSA optimizations
413   --disable-mipsfpu        disable floating point MIPS optimizations
414   --disable-mmi            disable Loongson SIMD optimizations
415   --disable-fast-unaligned consider unaligned accesses slow
416
417 Developer options (useful when working on FFmpeg itself):
418   --disable-debug          disable debugging symbols
419   --enable-debug=LEVEL     set the debug level [$debuglevel]
420   --disable-optimizations  disable compiler optimizations
421   --enable-extra-warnings  enable more compiler warnings
422   --disable-stripping      disable stripping of executables and shared libraries
423   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
424                            2 causes a slowdown at runtime.
425   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
426   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
427                            leaks and errors, using the specified valgrind binary.
428                            Cannot be combined with --target-exec
429   --enable-ftrapv          Trap arithmetic overflows
430   --samples=PATH           location of test samples for FATE, if not set use
431                            \$FATE_SAMPLES at make invocation time.
432   --enable-neon-clobber-test check NEON registers for clobbering (should be
433                            used only for debugging purposes)
434   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
435                            should be used only for debugging purposes)
436   --enable-random          randomly enable/disable components
437   --disable-random
438   --enable-random=LIST     randomly enable/disable specific components or
439   --disable-random=LIST    component groups. LIST is a comma-separated list
440                            of NAME[:PROB] entries where NAME is a component
441                            (group) and PROB the probability associated with
442                            NAME (default 0.5).
443   --random-seed=VALUE      seed value for --enable/disable-random
444   --disable-valgrind-backtrace do not print a backtrace under Valgrind
445                            (only applies to --disable-optimizations builds)
446   --enable-osfuzz          Enable building fuzzer tool
447   --libfuzzer=PATH         path to libfuzzer
448   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
449                            in the name) of tests whose result is ignored
450
451 NOTE: Object files are built at the place where configure is launched.
452 EOF
453   exit 0
454 }
455
456 quotes='""'
457 if test -t 1 && which tput >/dev/null 2>&1; then
458     ncolors=$(tput colors)
459     if test -n "$ncolors" && test $ncolors -ge 8; then
460         bold_color=$(tput bold)
461         warn_color=$(tput setaf 3)
462         error_color=$(tput setaf 1)
463         reset_color=$(tput sgr0)
464     fi
465     # 72 used instead of 80 since that's the default of pr
466     ncols=$(tput cols)
467 fi
468 : ${ncols:=72}
469
470 log(){
471     echo "$@" >> $logfile
472 }
473
474 log_file(){
475     log BEGIN $1
476     pr -n -t $1 >> $logfile
477     log END $1
478 }
479
480 warn(){
481     log "WARNING: $*"
482     WARNINGS="${WARNINGS}WARNING: $*\n"
483 }
484
485 die(){
486     log "$@"
487     echo "$error_color$bold_color$@$reset_color"
488     cat <<EOF
489
490 If you think configure made a mistake, make sure you are using the latest
491 version from Git.  If the latest version fails, report the problem to the
492 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
493 EOF
494     if disabled logging; then
495         cat <<EOF
496 Rerun configure with logging enabled (do not use --disable-logging), and
497 include the log this produces with your report.
498 EOF
499     else
500         cat <<EOF
501 Include the log file "$logfile" produced by configure as this will help
502 solve the problem.
503 EOF
504     fi
505     exit 1
506 }
507
508 # Avoid locale weirdness, besides we really just want to translate ASCII.
509 toupper(){
510     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
511 }
512
513 tolower(){
514     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
515 }
516
517 c_escape(){
518     echo "$*" | sed 's/["\\]/\\\0/g'
519 }
520
521 sh_quote(){
522     v=$(echo "$1" | sed "s/'/'\\\\''/g")
523     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
524     echo "$v"
525 }
526
527 cleanws(){
528     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
529 }
530
531 filter(){
532     pat=$1
533     shift
534     for v; do
535         eval "case $v in $pat) printf '%s ' $v ;; esac"
536     done
537 }
538
539 filter_out(){
540     pat=$1
541     shift
542     for v; do
543         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
544     done
545 }
546
547 map(){
548     m=$1
549     shift
550     for v; do eval $m; done
551 }
552
553 add_suffix(){
554     suffix=$1
555     shift
556     for v; do echo ${v}${suffix}; done
557 }
558
559 set_all(){
560     value=$1
561     shift
562     for var in $*; do
563         eval $var=$value
564     done
565 }
566
567 set_weak(){
568     value=$1
569     shift
570     for var; do
571         eval : \${$var:=$value}
572     done
573 }
574
575 sanitize_var_name(){
576     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
577 }
578
579 set_safe(){
580     var=$1
581     shift
582     eval $(sanitize_var_name "$var")='$*'
583 }
584
585 get_safe(){
586     eval echo \$$(sanitize_var_name "$1")
587 }
588
589 pushvar(){
590     for pvar in $*; do
591         eval level=\${${pvar}_level:=0}
592         eval ${pvar}_${level}="\$$pvar"
593         eval ${pvar}_level=$(($level+1))
594     done
595 }
596
597 popvar(){
598     for pvar in $*; do
599         eval level=\${${pvar}_level:-0}
600         test $level = 0 && continue
601         eval level=$(($level-1))
602         eval $pvar="\${${pvar}_${level}}"
603         eval ${pvar}_level=$level
604         eval unset ${pvar}_${level}
605     done
606 }
607
608 request(){
609     for var in $*; do
610         eval ${var}_requested=yes
611         eval $var=
612     done
613 }
614
615 enable(){
616     set_all yes $*
617 }
618
619 disable(){
620     set_all no $*
621 }
622
623 enable_weak(){
624     set_weak yes $*
625 }
626
627 disable_weak(){
628     set_weak no $*
629 }
630
631 enable_safe(){
632     for var; do
633         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
634     done
635 }
636
637 disable_safe(){
638     for var; do
639         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
640     done
641 }
642
643 do_enable_deep(){
644     for var; do
645         enabled $var && continue
646         eval sel="\$${var}_select"
647         eval sgs="\$${var}_suggest"
648         pushvar var sgs
649         enable_deep $sel
650         popvar sgs
651         enable_deep_weak $sgs
652         popvar var
653     done
654 }
655
656 enable_deep(){
657     do_enable_deep $*
658     enable $*
659 }
660
661 enable_deep_weak(){
662     for var; do
663         disabled $var && continue
664         pushvar var
665         do_enable_deep $var
666         popvar var
667         enable_weak $var
668     done
669 }
670
671 requested(){
672     test "${1#!}" = "$1" && op='=' || op=!=
673     eval test "x\$${1#!}_requested" $op "xyes"
674 }
675
676 enabled(){
677     test "${1#!}" = "$1" && op='=' || op=!=
678     eval test "x\$${1#!}" $op "xyes"
679 }
680
681 disabled(){
682     test "${1#!}" = "$1" && op='=' || op=!=
683     eval test "x\$${1#!}" $op "xno"
684 }
685
686 enabled_all(){
687     for opt; do
688         enabled $opt || return 1
689     done
690 }
691
692 disabled_all(){
693     for opt; do
694         disabled $opt || return 1
695     done
696 }
697
698 enabled_any(){
699     for opt; do
700         enabled $opt && return 0
701     done
702 }
703
704 disabled_any(){
705     for opt; do
706         disabled $opt && return 0
707     done
708     return 1
709 }
710
711 set_default(){
712     for opt; do
713         eval : \${$opt:=\$${opt}_default}
714     done
715 }
716
717 is_in(){
718     value=$1
719     shift
720     for var in $*; do
721         [ $var = $value ] && return 0
722     done
723     return 1
724 }
725
726 do_check_deps(){
727     for cfg; do
728         cfg="${cfg#!}"
729         enabled ${cfg}_checking && die "Circular dependency for $cfg."
730         disabled ${cfg}_checking && continue
731         enable ${cfg}_checking
732         append allopts $cfg
733
734         eval dep_all="\$${cfg}_deps"
735         eval dep_any="\$${cfg}_deps_any"
736         eval dep_sel="\$${cfg}_select"
737         eval dep_sgs="\$${cfg}_suggest"
738         eval dep_ifa="\$${cfg}_if"
739         eval dep_ifn="\$${cfg}_if_any"
740
741         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
742         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
743         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
744
745         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
746         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
747         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
748         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
749         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
750
751         if enabled $cfg; then
752             enable_deep $dep_sel
753             enable_deep_weak $dep_sgs
754         fi
755
756         disable ${cfg}_checking
757     done
758 }
759
760 check_deps(){
761     unset allopts
762
763     do_check_deps "$@"
764
765     for cfg in $allopts; do
766         enabled $cfg || continue
767         eval dep_extralibs="\$${cfg}_extralibs"
768         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
769     done
770 }
771
772 print_config(){
773     pfx=$1
774     files=$2
775     shift 2
776     map 'eval echo "$v \${$v:-no}"' "$@" |
777     awk "BEGIN { split(\"$files\", files) }
778         {
779             c = \"$pfx\" toupper(\$1);
780             v = \$2;
781             sub(/yes/, 1, v);
782             sub(/no/,  0, v);
783             for (f in files) {
784                 file = files[f];
785                 if (file ~ /\\.h\$/) {
786                     printf(\"#define %s %d\\n\", c, v) >>file;
787                 } else if (file ~ /\\.asm\$/) {
788                     printf(\"%%define %s %d\\n\", c, v) >>file;
789                 } else if (file ~ /\\.mak\$/) {
790                     n = -v ? \"\" : \"!\";
791                     printf(\"%s%s=yes\\n\", n, c) >>file;
792                 } else if (file ~ /\\.texi\$/) {
793                     pre = -v ? \"\" : \"@c \";
794                     yesno = \$2;
795                     c2 = tolower(c);
796                     gsub(/_/, \"-\", c2);
797                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
798                 }
799             }
800         }"
801 }
802
803 print_enabled(){
804     suf=$1
805     shift
806     for v; do
807         enabled $v && printf "%s\n" ${v%$suf}
808     done
809 }
810
811 append(){
812     var=$1
813     shift
814     eval "$var=\"\$$var $*\""
815 }
816
817 prepend(){
818     var=$1
819     shift
820     eval "$var=\"$* \$$var\""
821 }
822
823 unique(){
824     var=$1
825     uniq_list=""
826     for tok in $(eval echo \$$var); do
827         uniq_list="$(filter_out $tok $uniq_list) $tok"
828     done
829     eval "$var=\"${uniq_list}\""
830 }
831
832 add_cppflags(){
833     append CPPFLAGS "$@"
834 }
835
836 add_cflags(){
837     append CFLAGS $($cflags_filter "$@")
838 }
839
840 add_cflags_headers(){
841     append CFLAGS_HEADERS $($cflags_filter "$@")
842 }
843
844 add_cxxflags(){
845     append CXXFLAGS $($cflags_filter "$@")
846 }
847
848 add_asflags(){
849     append ASFLAGS $($asflags_filter "$@")
850 }
851
852 add_objcflags(){
853     append OBJCFLAGS $($objcflags_filter "$@")
854 }
855
856 add_ldflags(){
857     append LDFLAGS $($ldflags_filter "$@")
858 }
859
860 add_ldexeflags(){
861     append LDEXEFLAGS $($ldflags_filter "$@")
862 }
863
864 add_ldlibflags(){
865     append LDLIBFLAGS $($ldflags_filter "$@")
866 }
867
868 add_stripflags(){
869     append ASMSTRIPFLAGS "$@"
870 }
871
872 add_extralibs(){
873     prepend extralibs $($ldflags_filter "$@")
874 }
875
876 add_host_cppflags(){
877     append host_cppflags "$@"
878 }
879
880 add_host_cflags(){
881     append host_cflags $($host_cflags_filter "$@")
882 }
883
884 add_host_ldflags(){
885     append host_ldflags $($host_ldflags_filter "$@")
886 }
887
888 add_compat(){
889     append compat_objs $1
890     shift
891     map 'add_cppflags -D$v' "$@"
892 }
893
894 check_cmd(){
895     log "$@"
896     "$@" >> $logfile 2>&1
897 }
898
899 check_stat(){
900     log check_stat "$@"
901     stat "$1" >> $logfile 2>&1
902 }
903
904 cc_o(){
905     eval printf '%s\\n' $CC_O
906 }
907
908 cc_e(){
909     eval printf '%s\\n' $CC_E
910 }
911
912 check_cc(){
913     log check_cc "$@"
914     cat > $TMPC
915     log_file $TMPC
916     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
917 }
918
919 check_cxx(){
920     log check_cxx "$@"
921     cat > $TMPCPP
922     log_file $TMPCPP
923     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
924 }
925
926 check_objcc(){
927     log check_objcc "$@"
928     cat > $TMPM
929     log_file $TMPM
930     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
931 }
932
933 check_cpp(){
934     log check_cpp "$@"
935     cat > $TMPC
936     log_file $TMPC
937     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
938 }
939
940 as_o(){
941     eval printf '%s\\n' $AS_O
942 }
943
944 check_as(){
945     log check_as "$@"
946     cat > $TMPS
947     log_file $TMPS
948     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
949 }
950
951 check_inline_asm(){
952     log check_inline_asm "$@"
953     name="$1"
954     code="$2"
955     shift 2
956     disable $name
957     check_cc "$@" <<EOF && enable $name
958 void foo(void){ __asm__ volatile($code); }
959 EOF
960 }
961
962 check_inline_asm_flags(){
963     log check_inline_asm_flags "$@"
964     name="$1"
965     code="$2"
966     flags=''
967     shift 2
968     while [ "$1" != "" ]; do
969       append flags $1
970       shift
971     done;
972     disable $name
973     cat > $TMPC <<EOF
974 void foo(void){ __asm__ volatile($code); }
975 EOF
976     log_file $TMPC
977     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
978     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
979 }
980
981 check_insn(){
982     log check_insn "$@"
983     check_inline_asm ${1}_inline "\"$2\""
984     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
985 }
986
987 check_x86asm(){
988     log check_x86asm "$@"
989     echo "$1" > $TMPS
990     log_file $TMPS
991     shift 1
992     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
993 }
994
995 ld_o(){
996     eval printf '%s\\n' $LD_O
997 }
998
999 check_ld(){
1000     log check_ld "$@"
1001     type=$1
1002     shift 1
1003     flags=$(filter_out '-l*|*.so' $@)
1004     libs=$(filter '-l*|*.so' $@)
1005     check_$type $($cflags_filter $flags) || return
1006     flags=$($ldflags_filter $flags)
1007     libs=$($ldflags_filter $libs)
1008     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1009 }
1010
1011 print_include(){
1012     hdr=$1
1013     test "${hdr%.h}" = "${hdr}" &&
1014         echo "#include $hdr"    ||
1015         echo "#include <$hdr>"
1016 }
1017
1018 check_code(){
1019     log check_code "$@"
1020     check=$1
1021     headers=$2
1022     code=$3
1023     shift 3
1024     {
1025         for hdr in $headers; do
1026             print_include $hdr
1027         done
1028         echo "int main(void) { $code; return 0; }"
1029     } | check_$check "$@"
1030 }
1031
1032 check_cppflags(){
1033     log check_cppflags "$@"
1034     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1035 int x;
1036 EOF
1037 }
1038
1039 test_cflags(){
1040     log test_cflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_cc "$@" <<EOF
1043 int x;
1044 EOF
1045 }
1046
1047 check_cflags(){
1048     log check_cflags "$@"
1049     test_cflags "$@" && add_cflags "$@"
1050 }
1051
1052 check_cxxflags(){
1053     log check_cxxflags "$@"
1054     set -- $($cflags_filter "$@")
1055     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1056 int x;
1057 EOF
1058 }
1059
1060 test_objcflags(){
1061     log test_objcflags "$@"
1062     set -- $($objcflags_filter "$@")
1063     check_objcc "$@" <<EOF
1064 int x;
1065 EOF
1066 }
1067
1068 check_objcflags(){
1069     log check_objcflags "$@"
1070     test_objcflags "$@" && add_objcflags "$@"
1071 }
1072
1073 test_ldflags(){
1074     log test_ldflags "$@"
1075     check_ld "cc" "$@" <<EOF
1076 int main(void){ return 0; }
1077 EOF
1078 }
1079
1080 check_ldflags(){
1081     log check_ldflags "$@"
1082     test_ldflags "$@" && add_ldflags "$@"
1083 }
1084
1085 test_stripflags(){
1086     log test_stripflags "$@"
1087     # call check_cc to get a fresh TMPO
1088     check_cc <<EOF
1089 int main(void) { return 0; }
1090 EOF
1091     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1092 }
1093
1094 check_stripflags(){
1095     log check_stripflags "$@"
1096     test_stripflags "$@" && add_stripflags "$@"
1097 }
1098
1099 check_header(){
1100     log check_header "$@"
1101     header=$1
1102     shift
1103     disable_safe $header
1104     check_cpp "$@" <<EOF && enable_safe $header
1105 #include <$header>
1106 int x;
1107 EOF
1108 }
1109
1110 check_header_objcc(){
1111     log check_header_objcc "$@"
1112     rm -f -- "$TMPO"
1113     header=$1
1114     shift
1115     disable_safe $header
1116     {
1117        echo "#include <$header>"
1118        echo "int main(void) { return 0; }"
1119     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1120 }
1121
1122 check_func(){
1123     log check_func "$@"
1124     func=$1
1125     shift
1126     disable $func
1127     check_ld "cc" "$@" <<EOF && enable $func
1128 extern int $func();
1129 int main(void){ $func(); }
1130 EOF
1131 }
1132
1133 check_complexfunc(){
1134     log check_complexfunc "$@"
1135     func=$1
1136     narg=$2
1137     shift 2
1138     test $narg = 2 && args="f, g" || args="f * I"
1139     disable $func
1140     check_ld "cc" "$@" <<EOF && enable $func
1141 #include <complex.h>
1142 #include <math.h>
1143 float foo(complex float f, complex float g) { return $func($args); }
1144 int main(void){ return (int) foo; }
1145 EOF
1146 }
1147
1148 check_mathfunc(){
1149     log check_mathfunc "$@"
1150     func=$1
1151     narg=$2
1152     shift 2
1153     test $narg = 2 && args="f, g" || args="f"
1154     disable $func
1155     check_ld "cc" "$@" <<EOF && enable $func
1156 #include <math.h>
1157 float foo(float f, float g) { return $func($args); }
1158 int main(void){ return (int) foo; }
1159 EOF
1160 }
1161
1162 check_func_headers(){
1163     log check_func_headers "$@"
1164     headers=$1
1165     funcs=$2
1166     shift 2
1167     {
1168         for hdr in $headers; do
1169             print_include $hdr
1170         done
1171         echo "#include <stdint.h>"
1172         for func in $funcs; do
1173             echo "long check_$func(void) { return (long) $func; }"
1174         done
1175         echo "int main(void) { int ret = 0;"
1176         # LTO could optimize out the test functions without this
1177         for func in $funcs; do
1178             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1179         done
1180         echo "return ret; }"
1181     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1182 }
1183
1184 check_class_headers_cpp(){
1185     log check_class_headers_cpp "$@"
1186     headers=$1
1187     classes=$2
1188     shift 2
1189     {
1190         for hdr in $headers; do
1191             echo "#include <$hdr>"
1192         done
1193         echo "int main(void) { "
1194         i=1
1195         for class in $classes; do
1196             echo "$class obj$i;"
1197             i=$(expr $i + 1)
1198         done
1199         echo "return 0; }"
1200     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1201 }
1202
1203 check_cpp_condition(){
1204     log check_cpp_condition "$@"
1205     header=$1
1206     condition=$2
1207     shift 2
1208     check_cpp "$@" <<EOF
1209 #include <$header>
1210 #if !($condition)
1211 #error "unsatisfied condition: $condition"
1212 #endif
1213 EOF
1214 }
1215
1216 test_cflags_cc(){
1217     log test_cflags_cc "$@"
1218     flags=$1
1219     header=$2
1220     condition=$3
1221     shift 3
1222     set -- $($cflags_filter "$flags")
1223     check_cc "$@" <<EOF
1224 #include <$header>
1225 #if !($condition)
1226 #error "unsatisfied condition: $condition"
1227 #endif
1228 EOF
1229 }
1230
1231 check_lib(){
1232     log check_lib "$@"
1233     name="$1"
1234     headers="$2"
1235     funcs="$3"
1236     shift 3
1237     disable $name
1238     check_func_headers "$headers" "$funcs" "$@" &&
1239         enable $name && add_extralibs "$@"
1240 }
1241
1242 check_lib_cpp(){
1243     log check_lib_cpp "$@"
1244     headers="$1"
1245     classes="$2"
1246     shift 2
1247     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1248 }
1249
1250 check_pkg_config(){
1251     log check_pkg_config "$@"
1252     pkg_version="$1"
1253     pkg="${1%% *}"
1254     headers="$2"
1255     funcs="$3"
1256     shift 3
1257     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1258     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1259     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1260     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1261         set_safe "${pkg}_cflags"    $pkg_cflags &&
1262         set_safe "${pkg}_extralibs" $pkg_libs
1263 }
1264
1265 check_exec(){
1266     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1267 }
1268
1269 check_exec_crash(){
1270     log check_exec_crash "$@"
1271     code=$(cat)
1272
1273     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1274     # are safe but may not be available everywhere.  Thus we use
1275     # raise(SIGTERM) instead.  The check is run in a subshell so we
1276     # can redirect the "Terminated" message from the shell.  SIGBUS
1277     # is not defined by standard C so it is used conditionally.
1278
1279     (check_exec "$@") >> $logfile 2>&1 <<EOF
1280 #include <signal.h>
1281 static void sighandler(int sig){
1282     raise(SIGTERM);
1283 }
1284 int foo(void){
1285     $code
1286 }
1287 int (*func_ptr)(void) = foo;
1288 int main(void){
1289     signal(SIGILL, sighandler);
1290     signal(SIGFPE, sighandler);
1291     signal(SIGSEGV, sighandler);
1292 #ifdef SIGBUS
1293     signal(SIGBUS, sighandler);
1294 #endif
1295     return func_ptr();
1296 }
1297 EOF
1298 }
1299
1300 check_type(){
1301     log check_type "$@"
1302     headers=$1
1303     type=$2
1304     shift 2
1305     disable_safe "$type"
1306     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1307 }
1308
1309 check_struct(){
1310     log check_struct "$@"
1311     headers=$1
1312     struct=$2
1313     member=$3
1314     shift 3
1315     disable_safe "${struct}_${member}"
1316     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1317         enable_safe "${struct}_${member}"
1318 }
1319
1320 check_builtin(){
1321     log check_builtin "$@"
1322     name=$1
1323     headers=$2
1324     builtin=$3
1325     shift 3
1326     disable "$name"
1327     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1328 }
1329
1330 check_compile_assert(){
1331     log check_compile_assert "$@"
1332     name=$1
1333     headers=$2
1334     condition=$3
1335     shift 3
1336     disable "$name"
1337     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1338 }
1339
1340 require(){
1341     log require "$@"
1342     name_version="$1"
1343     name="${1%% *}"
1344     headers="$2"
1345     func="$3"
1346     shift 3
1347     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1348 }
1349
1350 require_cpp(){
1351     name="$1"
1352     headers="$2"
1353     classes="$3"
1354     shift 3
1355     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1356 }
1357
1358 use_pkg_config(){
1359     log use_pkg_config "$@"
1360     pkg="$1"
1361     check_pkg_config "$@" || return 1
1362     add_cflags    $(get_safe "${pkg}_cflags")
1363     add_extralibs $(get_safe "${pkg}_extralibs")
1364 }
1365
1366 require_pkg_config(){
1367     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1368 }
1369
1370 hostcc_e(){
1371     eval printf '%s\\n' $HOSTCC_E
1372 }
1373
1374 hostcc_o(){
1375     eval printf '%s\\n' $HOSTCC_O
1376 }
1377
1378 check_host_cc(){
1379     log check_host_cc "$@"
1380     cat > $TMPC
1381     log_file $TMPC
1382     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1383 }
1384
1385 check_host_cpp(){
1386     log check_host_cpp "$@"
1387     cat > $TMPC
1388     log_file $TMPC
1389     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1390 }
1391
1392 check_host_cppflags(){
1393     log check_host_cppflags "$@"
1394     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1395 int x;
1396 EOF
1397 }
1398
1399 check_host_cflags(){
1400     log check_host_cflags "$@"
1401     set -- $($host_cflags_filter "$@")
1402     check_host_cc "$@" <<EOF && append host_cflags "$@"
1403 int x;
1404 EOF
1405 }
1406
1407 check_host_cpp_condition(){
1408     log check_host_cpp_condition "$@"
1409     header=$1
1410     condition=$2
1411     shift 2
1412     check_host_cpp "$@" <<EOF
1413 #include <$header>
1414 #if !($condition)
1415 #error "unsatisfied condition: $condition"
1416 #endif
1417 EOF
1418 }
1419
1420 cp_if_changed(){
1421     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1422     mkdir -p "$(dirname $2)"
1423     cp -f "$1" "$2"
1424 }
1425
1426 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1427 # system-dependent things.
1428
1429 AVCODEC_COMPONENTS="
1430     bsfs
1431     decoders
1432     encoders
1433     hwaccels
1434     parsers
1435 "
1436
1437 AVDEVICE_COMPONENTS="
1438     indevs
1439     outdevs
1440 "
1441 AVFILTER_COMPONENTS="
1442     filters
1443 "
1444 AVFORMAT_COMPONENTS="
1445     demuxers
1446     muxers
1447     protocols
1448 "
1449
1450 AVRESAMPLE_COMPONENTS=""
1451 AVUTIL_COMPONENTS=""
1452
1453 COMPONENT_LIST="
1454     $AVCODEC_COMPONENTS
1455     $AVDEVICE_COMPONENTS
1456     $AVFILTER_COMPONENTS
1457     $AVFORMAT_COMPONENTS
1458     $AVRESAMPLE_COMPONENTS
1459     $AVUTIL_COMPONENTS
1460 "
1461
1462 EXAMPLE_LIST="
1463     avio_dir_cmd_example
1464     avio_reading_example
1465     decode_audio_example
1466     decode_video_example
1467     demuxing_decoding_example
1468     encode_audio_example
1469     encode_video_example
1470     extract_mvs_example
1471     filter_audio_example
1472     filtering_audio_example
1473     filtering_video_example
1474     http_multiclient_example
1475     hw_decode_example
1476     metadata_example
1477     muxing_example
1478     qsvdec_example
1479     remuxing_example
1480     resampling_audio_example
1481     scaling_video_example
1482     transcode_aac_example
1483     transcoding_example
1484 "
1485 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1486     alsa
1487     bzlib
1488     iconv
1489     jack
1490     libxcb
1491     libxcb_shm
1492     libxcb_shape
1493     libxcb_xfixes
1494     lzma
1495     schannel
1496     sdl2
1497     securetransport
1498     xlib
1499     zlib
1500 "
1501
1502 EXTERNAL_LIBRARY_GPL_LIST="
1503     avisynth
1504     frei0r
1505     libcdio
1506     librubberband
1507     libvidstab
1508     libx264
1509     libx265
1510     libxavs
1511     libxvid
1512 "
1513
1514 EXTERNAL_LIBRARY_NONFREE_LIST="
1515     decklink
1516     libndi_newtek
1517     libfdk_aac
1518     openssl
1519 "
1520
1521 EXTERNAL_LIBRARY_VERSION3_LIST="
1522     gmp
1523     libopencore_amrnb
1524     libopencore_amrwb
1525     libvo_amrwbenc
1526 "
1527
1528 EXTERNAL_LIBRARY_GPLV3_LIST="
1529     libsmbclient
1530 "
1531
1532 EXTERNAL_LIBRARY_LIST="
1533     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1534     $EXTERNAL_LIBRARY_GPL_LIST
1535     $EXTERNAL_LIBRARY_NONFREE_LIST
1536     $EXTERNAL_LIBRARY_VERSION3_LIST
1537     $EXTERNAL_LIBRARY_GPLV3_LIST
1538     chromaprint
1539     gcrypt
1540     gnutls
1541     jni
1542     ladspa
1543     libass
1544     libbluray
1545     libbs2b
1546     libcaca
1547     libcelt
1548     libdc1394
1549     libflite
1550     libfontconfig
1551     libfreetype
1552     libfribidi
1553     libgme
1554     libgsm
1555     libiec61883
1556     libilbc
1557     libkvazaar
1558     libmodplug
1559     libmp3lame
1560     libmysofa
1561     libopencv
1562     libopenh264
1563     libopenjpeg
1564     libopenmpt
1565     libopus
1566     libpulse
1567     librsvg
1568     librtmp
1569     libshine
1570     libsmbclient
1571     libsnappy
1572     libsoxr
1573     libspeex
1574     libssh
1575     libtesseract
1576     libtheora
1577     libtwolame
1578     libv4l2
1579     libvmaf
1580     libvorbis
1581     libvpx
1582     libwavpack
1583     libwebp
1584     libzimg
1585     libzmq
1586     libzvbi
1587     mediacodec
1588     openal
1589     opencl
1590     opengl
1591     videotoolbox
1592 "
1593 HWACCEL_AUTODETECT_LIBRARY_LIST="
1594     audiotoolbox
1595     crystalhd
1596     cuda
1597     cuvid
1598     d3d11va
1599     dxva2
1600     nvenc
1601     vaapi
1602     vda
1603     vdpau
1604     videotoolbox_hwaccel
1605     xvmc
1606 "
1607
1608 HWACCEL_LIBRARY_NONFREE_LIST="
1609     cuda_sdk
1610     libnpp
1611 "
1612
1613 HWACCEL_LIBRARY_LIST="
1614     $HWACCEL_AUTODETECT_LIBRARY_LIST
1615     $HWACCEL_LIBRARY_NONFREE_LIST
1616     libmfx
1617     mmal
1618     omx
1619 "
1620
1621 DOCUMENT_LIST="
1622     doc
1623     htmlpages
1624     manpages
1625     podpages
1626     txtpages
1627 "
1628
1629 FEATURE_LIST="
1630     ftrapv
1631     gray
1632     hardcoded_tables
1633     omx_rpi
1634     runtime_cpudetect
1635     safe_bitstream_reader
1636     shared
1637     small
1638     static
1639     swscale_alpha
1640 "
1641
1642 LIBRARY_LIST="
1643     avcodec
1644     avdevice
1645     avfilter
1646     avformat
1647     avresample
1648     avutil
1649     postproc
1650     swresample
1651     swscale
1652 "
1653
1654 LICENSE_LIST="
1655     gpl
1656     nonfree
1657     version3
1658 "
1659
1660 PROGRAM_LIST="
1661     ffplay
1662     ffprobe
1663     ffserver
1664     ffmpeg
1665 "
1666
1667 SUBSYSTEM_LIST="
1668     dct
1669     dwt
1670     error_resilience
1671     faan
1672     fast_unaligned
1673     fft
1674     lsp
1675     lzo
1676     mdct
1677     pixelutils
1678     network
1679     rdft
1680 "
1681
1682 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1683 CONFIG_LIST="
1684     $DOCUMENT_LIST
1685     $EXAMPLE_LIST
1686     $EXTERNAL_LIBRARY_LIST
1687     $HWACCEL_LIBRARY_LIST
1688     $FEATURE_LIST
1689     $LICENSE_LIST
1690     $LIBRARY_LIST
1691     $PROGRAM_LIST
1692     $SUBSYSTEM_LIST
1693     autodetect
1694     fontconfig
1695     memory_poisoning
1696     neon_clobber_test
1697     ossfuzz
1698     pic
1699     thumb
1700     valgrind_backtrace
1701     xmm_clobber_test
1702     $COMPONENT_LIST
1703 "
1704
1705 THREADS_LIST="
1706     pthreads
1707     os2threads
1708     w32threads
1709 "
1710
1711 ATOMICS_LIST="
1712     atomics_gcc
1713     atomics_suncc
1714     atomics_win32
1715 "
1716
1717 AUTODETECT_LIBS="
1718     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1719     $HWACCEL_AUTODETECT_LIBRARY_LIST
1720     $THREADS_LIST
1721 "
1722
1723 ARCH_LIST="
1724     aarch64
1725     alpha
1726     arm
1727     avr32
1728     avr32_ap
1729     avr32_uc
1730     bfin
1731     ia64
1732     m68k
1733     mips
1734     mips64
1735     parisc
1736     ppc
1737     ppc64
1738     s390
1739     sh4
1740     sparc
1741     sparc64
1742     tilegx
1743     tilepro
1744     tomi
1745     x86
1746     x86_32
1747     x86_64
1748 "
1749
1750 ARCH_EXT_LIST_ARM="
1751     armv5te
1752     armv6
1753     armv6t2
1754     armv8
1755     neon
1756     vfp
1757     vfpv3
1758     setend
1759 "
1760
1761 ARCH_EXT_LIST_MIPS="
1762     mipsfpu
1763     mips32r2
1764     mips32r5
1765     mips64r2
1766     mips32r6
1767     mips64r6
1768     mipsdsp
1769     mipsdspr2
1770     msa
1771 "
1772
1773 ARCH_EXT_LIST_LOONGSON="
1774     loongson2
1775     loongson3
1776     mmi
1777 "
1778
1779 ARCH_EXT_LIST_X86_SIMD="
1780     aesni
1781     amd3dnow
1782     amd3dnowext
1783     avx
1784     avx2
1785     fma3
1786     fma4
1787     mmx
1788     mmxext
1789     sse
1790     sse2
1791     sse3
1792     sse4
1793     sse42
1794     ssse3
1795     xop
1796 "
1797
1798 ARCH_EXT_LIST_PPC="
1799     altivec
1800     dcbzl
1801     ldbrx
1802     power8
1803     ppc4xx
1804     vsx
1805 "
1806
1807 ARCH_EXT_LIST_X86="
1808     $ARCH_EXT_LIST_X86_SIMD
1809     cpunop
1810     i686
1811 "
1812
1813 ARCH_EXT_LIST="
1814     $ARCH_EXT_LIST_ARM
1815     $ARCH_EXT_LIST_PPC
1816     $ARCH_EXT_LIST_X86
1817     $ARCH_EXT_LIST_MIPS
1818     $ARCH_EXT_LIST_LOONGSON
1819 "
1820
1821 ARCH_FEATURES="
1822     aligned_stack
1823     fast_64bit
1824     fast_clz
1825     fast_cmov
1826     local_aligned_8
1827     local_aligned_16
1828     local_aligned_32
1829     simd_align_16
1830     simd_align_32
1831 "
1832
1833 BUILTIN_LIST="
1834     atomic_cas_ptr
1835     machine_rw_barrier
1836     MemoryBarrier
1837     mm_empty
1838     rdtsc
1839     sarestart
1840     sem_timedwait
1841     sync_val_compare_and_swap
1842 "
1843 HAVE_LIST_CMDLINE="
1844     inline_asm
1845     symver
1846     x86asm
1847 "
1848
1849 HAVE_LIST_PUB="
1850     bigendian
1851     fast_unaligned
1852 "
1853
1854 HEADERS_LIST="
1855     alsa_asoundlib_h
1856     altivec_h
1857     arpa_inet_h
1858     asm_types_h
1859     cdio_paranoia_h
1860     cdio_paranoia_paranoia_h
1861     cuda_h
1862     d3d11_h
1863     dispatch_dispatch_h
1864     dev_bktr_ioctl_bt848_h
1865     dev_bktr_ioctl_meteor_h
1866     dev_ic_bt8xx_h
1867     dev_video_bktr_ioctl_bt848_h
1868     dev_video_meteor_ioctl_meteor_h
1869     direct_h
1870     dirent_h
1871     dlfcn_h
1872     dxgidebug_h
1873     dxva_h
1874     ES2_gl_h
1875     gsm_h
1876     io_h
1877     mach_mach_time_h
1878     machine_ioctl_bt848_h
1879     machine_ioctl_meteor_h
1880     malloc_h
1881     opencv2_core_core_c_h
1882     openjpeg_2_2_openjpeg_h
1883     openjpeg_2_1_openjpeg_h
1884     openjpeg_2_0_openjpeg_h
1885     openjpeg_1_5_openjpeg_h
1886     OpenGL_gl3_h
1887     poll_h
1888     sndio_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     sndio
2077     texi2html
2078     threads
2079     uwp
2080     vaapi_drm
2081     vaapi_x11
2082     vdpau_x11
2083     winrt
2084 "
2085
2086 # options emitted with CONFIG_ prefix but not available on the command line
2087 CONFIG_EXTRA="
2088     aandcttables
2089     ac3dsp
2090     audio_frame_queue
2091     audiodsp
2092     blockdsp
2093     bswapdsp
2094     cabac
2095     dirac_parse
2096     dvprofile
2097     exif
2098     faandct
2099     faanidct
2100     fdctdsp
2101     flacdsp
2102     fmtconvert
2103     frame_thread_encoder
2104     g722dsp
2105     golomb
2106     gplv3
2107     h263dsp
2108     h264chroma
2109     h264dsp
2110     h264parse
2111     h264pred
2112     h264qpel
2113     hevcparse
2114     hpeldsp
2115     huffman
2116     huffyuvdsp
2117     huffyuvencdsp
2118     idctdsp
2119     iirfilter
2120     mdct15
2121     intrax8
2122     iso_media
2123     ividsp
2124     jpegtables
2125     lgplv3
2126     libx262
2127     llauddsp
2128     llviddsp
2129     llvidencdsp
2130     lpc
2131     lzf
2132     me_cmp
2133     mpeg_er
2134     mpegaudio
2135     mpegaudiodsp
2136     mpegaudioheader
2137     mpegvideo
2138     mpegvideoenc
2139     mss34dsp
2140     pixblockdsp
2141     qpeldsp
2142     qsv
2143     qsvdec
2144     qsvenc
2145     rangecoder
2146     riffdec
2147     riffenc
2148     rtpdec
2149     rtpenc_chain
2150     rv34dsp
2151     sinewin
2152     snappy
2153     srtp
2154     startcode
2155     texturedsp
2156     texturedspenc
2157     tpeldsp
2158     vaapi_encode
2159     vc1dsp
2160     videodsp
2161     vp3dsp
2162     vp56dsp
2163     vp8dsp
2164     vt_bt2020
2165     wma_freqs
2166     wmv2dsp
2167 "
2168
2169 CMDLINE_SELECT="
2170     $ARCH_EXT_LIST
2171     $CONFIG_LIST
2172     $HAVE_LIST_CMDLINE
2173     $THREADS_LIST
2174     asm
2175     cross_compile
2176     debug
2177     extra_warnings
2178     logging
2179     lto
2180     optimizations
2181     rpath
2182     stripping
2183 "
2184
2185 PATHS_LIST="
2186     bindir
2187     datadir
2188     docdir
2189     incdir
2190     libdir
2191     mandir
2192     pkgconfigdir
2193     prefix
2194     shlibdir
2195     install_name_dir
2196 "
2197
2198 CMDLINE_SET="
2199     $PATHS_LIST
2200     ar
2201     arch
2202     as
2203     assert_level
2204     build_suffix
2205     cc
2206     objcc
2207     cpu
2208     cross_prefix
2209     custom_allocator
2210     cxx
2211     dep_cc
2212     doxygen
2213     env
2214     extra_version
2215     gas
2216     host_cc
2217     host_cflags
2218     host_extralibs
2219     host_ld
2220     host_ldflags
2221     host_os
2222     ignore_tests
2223     install
2224     ld
2225     ln_s
2226     logfile
2227     malloc_prefix
2228     nm
2229     optflags
2230     nvccflags
2231     pkg_config
2232     pkg_config_flags
2233     progs_suffix
2234     random_seed
2235     ranlib
2236     samples
2237     strip
2238     sws_max_filter_size
2239     sysinclude
2240     sysroot
2241     target_exec
2242     target_os
2243     target_path
2244     target_samples
2245     tempprefix
2246     toolchain
2247     valgrind
2248     x86asmexe
2249 "
2250
2251 CMDLINE_APPEND="
2252     extra_cflags
2253     extra_cxxflags
2254     extra_objcflags
2255     host_cppflags
2256 "
2257
2258 # code dependency declarations
2259
2260 # architecture extensions
2261
2262 armv5te_deps="arm"
2263 armv6_deps="arm"
2264 armv6t2_deps="arm"
2265 armv8_deps="aarch64"
2266 neon_deps_any="aarch64 arm"
2267 intrinsics_neon_deps="neon"
2268 vfp_deps_any="aarch64 arm"
2269 vfpv3_deps="vfp"
2270 setend_deps="arm"
2271
2272 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2273
2274 loongson2_deps="mips"
2275 loongson3_deps="mips"
2276 mipsfpu_deps="mips"
2277 mipsdsp_deps="mips"
2278 mipsdspr2_deps="mips"
2279 mips32r2_deps="mips"
2280 mips32r5_deps="mips"
2281 mips32r6_deps="mips"
2282 mips64r2_deps="mips"
2283 mips64r6_deps="mips"
2284 msa_deps="mipsfpu"
2285 mmi_deps="mips"
2286
2287 altivec_deps="ppc"
2288 dcbzl_deps="ppc"
2289 ldbrx_deps="ppc"
2290 ppc4xx_deps="ppc"
2291 vsx_deps="altivec"
2292 power8_deps="vsx"
2293
2294 cpunop_deps="i686"
2295 x86_64_select="i686"
2296 x86_64_suggest="fast_cmov"
2297
2298 amd3dnow_deps="mmx"
2299 amd3dnowext_deps="amd3dnow"
2300 i686_deps="x86"
2301 mmx_deps="x86"
2302 mmxext_deps="mmx"
2303 sse_deps="mmxext"
2304 sse2_deps="sse"
2305 sse3_deps="sse2"
2306 ssse3_deps="sse3"
2307 sse4_deps="ssse3"
2308 sse42_deps="sse4"
2309 aesni_deps="sse42"
2310 avx_deps="sse42"
2311 xop_deps="avx"
2312 fma3_deps="avx"
2313 fma4_deps="avx"
2314 avx2_deps="avx"
2315
2316 mmx_external_deps="x86asm"
2317 mmx_inline_deps="inline_asm"
2318 mmx_suggest="mmx_external mmx_inline"
2319
2320 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2321     eval dep=\$${ext}_deps
2322     eval ${ext}_external_deps='"${dep}_external"'
2323     eval ${ext}_inline_deps='"${dep}_inline"'
2324     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2325 done
2326
2327 aligned_stack_if_any="aarch64 ppc x86"
2328 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2329 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2330 fast_unaligned_if_any="aarch64 ppc x86"
2331 simd_align_16_if_any="altivec neon sse"
2332 simd_align_32_if_any="avx"
2333
2334 # system capabilities
2335 symver_if_any="symver_asm_label symver_gnu_asm"
2336 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2337
2338 # threading support
2339 atomics_gcc_if="sync_val_compare_and_swap"
2340 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2341 atomics_win32_if="MemoryBarrier"
2342 atomics_native_if_any="$ATOMICS_LIST"
2343 w32threads_deps="atomics_native"
2344 threads_if_any="$THREADS_LIST"
2345
2346 # subsystems
2347 dct_select="rdft"
2348 dirac_parse_select="golomb"
2349 error_resilience_select="me_cmp"
2350 faandct_deps="faan fdctdsp"
2351 faanidct_deps="faan idctdsp"
2352 h264dsp_select="startcode"
2353 hevcparse_select="golomb"
2354 frame_thread_encoder_deps="encoders threads"
2355 intrax8_select="blockdsp idctdsp"
2356 mdct_select="fft"
2357 mdct15_select="fft"
2358 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2359 mpeg_er_select="error_resilience"
2360 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2361 mpegaudiodsp_select="dct"
2362 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2363 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2364 vc1dsp_select="h264chroma qpeldsp startcode"
2365 rdft_select="fft"
2366
2367 # decoders / encoders
2368 aac_decoder_select="mdct15 mdct sinewin"
2369 aac_fixed_decoder_select="mdct sinewin"
2370 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2371 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2372 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2373 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2374 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2375 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2376 adpcm_g722_decoder_select="g722dsp"
2377 adpcm_g722_encoder_select="g722dsp"
2378 aic_decoder_select="golomb idctdsp"
2379 alac_encoder_select="lpc"
2380 als_decoder_select="bswapdsp"
2381 amrnb_decoder_select="lsp"
2382 amrwb_decoder_select="lsp"
2383 amv_decoder_select="sp5x_decoder exif"
2384 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2385 ape_decoder_select="bswapdsp llauddsp"
2386 apng_decoder_select="zlib"
2387 apng_encoder_select="llvidencdsp zlib"
2388 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2389 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2390 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2391 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2392 atrac1_decoder_select="mdct sinewin"
2393 atrac3_decoder_select="mdct"
2394 atrac3p_decoder_select="mdct sinewin"
2395 avrn_decoder_select="exif jpegtables"
2396 bink_decoder_select="blockdsp hpeldsp"
2397 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2398 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2399 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2400 clearvideo_decoder_select="idctdsp"
2401 cllc_decoder_select="bswapdsp"
2402 comfortnoise_encoder_select="lpc"
2403 cook_decoder_select="audiodsp mdct sinewin"
2404 cscd_decoder_select="lzo"
2405 cscd_decoder_suggest="zlib"
2406 dca_decoder_select="mdct"
2407 dds_decoder_select="texturedsp"
2408 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2409 dnxhd_decoder_select="blockdsp idctdsp"
2410 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2411 dolby_e_decoder_select="mdct"
2412 dvvideo_decoder_select="dvprofile idctdsp"
2413 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2414 dxa_decoder_select="zlib"
2415 dxv_decoder_select="lzf texturedsp"
2416 eac3_decoder_select="ac3_decoder"
2417 eac3_encoder_select="ac3_encoder"
2418 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2419 eatgq_decoder_select="aandcttables"
2420 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2421 exr_decoder_select="zlib"
2422 ffv1_decoder_select="rangecoder"
2423 ffv1_encoder_select="rangecoder"
2424 ffvhuff_decoder_select="huffyuv_decoder"
2425 ffvhuff_encoder_select="huffyuv_encoder"
2426 fic_decoder_select="golomb"
2427 flac_decoder_select="flacdsp"
2428 flac_encoder_select="bswapdsp flacdsp lpc"
2429 flashsv2_decoder_select="zlib"
2430 flashsv2_encoder_select="zlib"
2431 flashsv_decoder_select="zlib"
2432 flashsv_encoder_select="zlib"
2433 flv_decoder_select="h263_decoder"
2434 flv_encoder_select="h263_encoder"
2435 fourxm_decoder_select="blockdsp bswapdsp"
2436 fraps_decoder_select="bswapdsp huffman"
2437 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2438 g729_decoder_select="audiodsp"
2439 h261_decoder_select="mpegvideo"
2440 h261_encoder_select="aandcttables mpegvideoenc"
2441 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2442 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2443 h263i_decoder_select="h263_decoder"
2444 h263p_decoder_select="h263_decoder"
2445 h263p_encoder_select="h263_encoder"
2446 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2447 h264_decoder_suggest="error_resilience"
2448 hap_decoder_select="snappy texturedsp"
2449 hap_encoder_deps="libsnappy"
2450 hap_encoder_select="texturedspenc"
2451 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2452 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2453 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2454 iac_decoder_select="imc_decoder"
2455 imc_decoder_select="bswapdsp fft mdct sinewin"
2456 indeo3_decoder_select="hpeldsp"
2457 indeo4_decoder_select="ividsp"
2458 indeo5_decoder_select="ividsp"
2459 interplay_video_decoder_select="hpeldsp"
2460 jpegls_decoder_select="mjpeg_decoder"
2461 jv_decoder_select="blockdsp"
2462 lagarith_decoder_select="llviddsp"
2463 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2464 magicyuv_decoder_select="llviddsp"
2465 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2466 metasound_decoder_select="lsp mdct sinewin"
2467 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2468 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2469 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2470 mjpegb_decoder_select="mjpeg_decoder"
2471 mlp_decoder_select="mlp_parser"
2472 mlp_encoder_select="lpc"
2473 motionpixels_decoder_select="bswapdsp"
2474 mp1_decoder_select="mpegaudio"
2475 mp1float_decoder_select="mpegaudio"
2476 mp2_decoder_select="mpegaudio"
2477 mp2float_decoder_select="mpegaudio"
2478 mp3_decoder_select="mpegaudio"
2479 mp3adu_decoder_select="mpegaudio"
2480 mp3adufloat_decoder_select="mpegaudio"
2481 mp3float_decoder_select="mpegaudio"
2482 mp3on4_decoder_select="mpegaudio"
2483 mp3on4float_decoder_select="mpegaudio"
2484 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2485 mpc8_decoder_select="mpegaudiodsp"
2486 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2487 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2488 mpegvideo_decoder_select="mpegvideo"
2489 mpeg1video_decoder_select="mpegvideo"
2490 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2491 mpeg2video_decoder_select="mpegvideo"
2492 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2493 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2494 mpeg4_encoder_select="h263_encoder"
2495 msa1_decoder_select="mss34dsp"
2496 mscc_decoder_select="zlib"
2497 msmpeg4v1_decoder_select="h263_decoder"
2498 msmpeg4v2_decoder_select="h263_decoder"
2499 msmpeg4v2_encoder_select="h263_encoder"
2500 msmpeg4v3_decoder_select="h263_decoder"
2501 msmpeg4v3_encoder_select="h263_encoder"
2502 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2503 mts2_decoder_select="mss34dsp"
2504 mxpeg_decoder_select="mjpeg_decoder"
2505 nellymoser_decoder_select="mdct sinewin"
2506 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2507 nuv_decoder_select="idctdsp lzo"
2508 on2avc_decoder_select="mdct"
2509 opus_decoder_deps="swresample"
2510 opus_decoder_select="mdct15"
2511 opus_encoder_select="audio_frame_queue mdct15"
2512 png_decoder_select="zlib"
2513 png_encoder_select="llvidencdsp zlib"
2514 prores_decoder_select="blockdsp idctdsp"
2515 prores_encoder_select="fdctdsp"
2516 qcelp_decoder_select="lsp"
2517 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2518 ra_144_decoder_select="audiodsp"
2519 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2520 ralf_decoder_select="golomb"
2521 rawvideo_decoder_select="bswapdsp"
2522 rscc_decoder_select="zlib"
2523 rtjpeg_decoder_select="me_cmp"
2524 rv10_decoder_select="h263_decoder"
2525 rv10_encoder_select="h263_encoder"
2526 rv20_decoder_select="h263_decoder"
2527 rv20_encoder_select="h263_encoder"
2528 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2529 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2530 screenpresso_decoder_select="zlib"
2531 shorten_decoder_select="bswapdsp"
2532 sipr_decoder_select="lsp"
2533 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2534 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2535 sonic_decoder_select="golomb rangecoder"
2536 sonic_encoder_select="golomb rangecoder"
2537 sonic_ls_encoder_select="golomb rangecoder"
2538 sp5x_decoder_select="mjpeg_decoder"
2539 srgc_decoder_select="zlib"
2540 svq1_decoder_select="hpeldsp"
2541 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2542 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2543 svq3_decoder_suggest="zlib"
2544 tak_decoder_select="audiodsp"
2545 tdsc_decoder_select="zlib mjpeg_decoder"
2546 theora_decoder_select="vp3_decoder"
2547 thp_decoder_select="mjpeg_decoder"
2548 tiff_decoder_suggest="zlib lzma"
2549 tiff_encoder_suggest="zlib"
2550 truehd_decoder_select="mlp_parser"
2551 truehd_encoder_select="lpc"
2552 truemotion2_decoder_select="bswapdsp"
2553 truespeech_decoder_select="bswapdsp"
2554 tscc_decoder_select="zlib"
2555 twinvq_decoder_select="mdct lsp sinewin"
2556 txd_decoder_select="texturedsp"
2557 utvideo_decoder_select="bswapdsp llviddsp"
2558 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2559 vble_decoder_select="llviddsp"
2560 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2561 vc1_qsv_decoder_deps="libmfx"
2562 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2563 vc1image_decoder_select="vc1_decoder"
2564 vorbis_decoder_select="mdct"
2565 vorbis_encoder_select="mdct"
2566 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2567 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2568 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2569 vp6a_decoder_select="vp6_decoder"
2570 vp6f_decoder_select="vp6_decoder"
2571 vp7_decoder_select="h264pred videodsp vp8dsp"
2572 vp8_decoder_select="h264pred videodsp vp8dsp"
2573 vp9_decoder_select="videodsp vp9_parser"
2574 webp_decoder_select="vp8_decoder exif"
2575 wmalossless_decoder_select="llauddsp"
2576 wmapro_decoder_select="mdct sinewin wma_freqs"
2577 wmav1_decoder_select="mdct sinewin wma_freqs"
2578 wmav1_encoder_select="mdct sinewin wma_freqs"
2579 wmav2_decoder_select="mdct sinewin wma_freqs"
2580 wmav2_encoder_select="mdct sinewin wma_freqs"
2581 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2582 wmv1_decoder_select="h263_decoder"
2583 wmv1_encoder_select="h263_encoder"
2584 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2585 wmv2_encoder_select="h263_encoder wmv2dsp"
2586 wmv3_decoder_select="vc1_decoder"
2587 wmv3image_decoder_select="wmv3_decoder"
2588 xma1_decoder_select="wmapro_decoder"
2589 xma2_decoder_select="wmapro_decoder"
2590 zerocodec_decoder_select="zlib"
2591 zlib_decoder_select="zlib"
2592 zlib_encoder_select="zlib"
2593 zmbv_decoder_select="zlib"
2594 zmbv_encoder_select="zlib"
2595
2596 # platform codecs
2597 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2598 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2599
2600 # hardware accelerators
2601 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2602 cuda_deps_any="dlopen LoadLibrary"
2603 cuvid_deps="cuda"
2604 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2605 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2606 dxva2_extralibs="-luser32"
2607 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2608 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2609 vda_deps="vda_framework pthreads"
2610 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2611 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2612 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2613 xvmc_deps="X11_extensions_XvMClib_h"
2614
2615 h263_vaapi_hwaccel_deps="vaapi"
2616 h263_vaapi_hwaccel_select="h263_decoder"
2617 h263_videotoolbox_hwaccel_deps="videotoolbox"
2618 h263_videotoolbox_hwaccel_select="h263_decoder"
2619 h264_cuvid_hwaccel_deps="cuda cuvid"
2620 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2621 h264_d3d11va_hwaccel_deps="d3d11va"
2622 h264_d3d11va_hwaccel_select="h264_decoder"
2623 h264_d3d11va2_hwaccel_deps="d3d11va"
2624 h264_d3d11va2_hwaccel_select="h264_decoder"
2625 h264_dxva2_hwaccel_deps="dxva2"
2626 h264_dxva2_hwaccel_select="h264_decoder"
2627 h264_mediacodec_hwaccel_deps="mediacodec"
2628 h264_mmal_hwaccel_deps="mmal"
2629 h264_qsv_hwaccel_deps="libmfx"
2630 h264_vaapi_hwaccel_deps="vaapi"
2631 h264_vaapi_hwaccel_select="h264_decoder"
2632 h264_vda_hwaccel_deps="vda"
2633 h264_vda_hwaccel_select="h264_decoder"
2634 h264_vda_old_hwaccel_deps="vda"
2635 h264_vda_old_hwaccel_select="h264_decoder"
2636 h264_vdpau_hwaccel_deps="vdpau"
2637 h264_vdpau_hwaccel_select="h264_decoder"
2638 h264_videotoolbox_hwaccel_deps="videotoolbox"
2639 h264_videotoolbox_hwaccel_select="h264_decoder"
2640 hevc_cuvid_hwaccel_deps="cuda cuvid"
2641 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2642 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2643 hevc_d3d11va_hwaccel_select="hevc_decoder"
2644 hevc_mediacodec_hwaccel_deps="mediacodec"
2645 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2646 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2647 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2648 hevc_dxva2_hwaccel_select="hevc_decoder"
2649 hevc_qsv_hwaccel_deps="libmfx"
2650 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2651 hevc_vaapi_hwaccel_select="hevc_decoder"
2652 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2653 hevc_vdpau_hwaccel_select="hevc_decoder"
2654 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2655 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2656 mpeg_xvmc_hwaccel_deps="xvmc"
2657 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2658 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2659 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2660 mpeg1_vdpau_hwaccel_deps="vdpau"
2661 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2662 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2663 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2664 mpeg1_xvmc_hwaccel_deps="xvmc"
2665 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2666 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2667 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2668 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2669 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2671 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2672 mpeg2_dxva2_hwaccel_deps="dxva2"
2673 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2674 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2675 mpeg2_mmal_hwaccel_deps="mmal"
2676 mpeg2_qsv_hwaccel_deps="libmfx"
2677 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2678 mpeg2_vaapi_hwaccel_deps="vaapi"
2679 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2680 mpeg2_vdpau_hwaccel_deps="vdpau"
2681 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2682 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2683 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2684 mpeg2_xvmc_hwaccel_deps="xvmc"
2685 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2686 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2687 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2688 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2689 mpeg4_mmal_hwaccel_deps="mmal"
2690 mpeg4_vaapi_hwaccel_deps="vaapi"
2691 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2692 mpeg4_vdpau_hwaccel_deps="vdpau"
2693 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2694 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2695 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2696 vc1_cuvid_hwaccel_deps="cuda cuvid"
2697 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2698 vc1_d3d11va_hwaccel_deps="d3d11va"
2699 vc1_d3d11va_hwaccel_select="vc1_decoder"
2700 vc1_d3d11va2_hwaccel_deps="d3d11va"
2701 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2702 vc1_dxva2_hwaccel_deps="dxva2"
2703 vc1_dxva2_hwaccel_select="vc1_decoder"
2704 vc1_mmal_hwaccel_deps="mmal"
2705 vc1_qsv_hwaccel_deps="libmfx"
2706 vc1_qsv_hwaccel_select="qsvdec_vc1"
2707 vc1_vaapi_hwaccel_deps="vaapi"
2708 vc1_vaapi_hwaccel_select="vc1_decoder"
2709 vc1_vdpau_hwaccel_deps="vdpau"
2710 vc1_vdpau_hwaccel_select="vc1_decoder"
2711 vp8_cuvid_hwaccel_deps="cuda cuvid"
2712 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2713 vp9_cuvid_hwaccel_deps="cuda cuvid"
2714 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2715 vp8_mediacodec_hwaccel_deps="mediacodec"
2716 vp8_qsv_hwaccel_deps="libmfx"
2717 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2718 vp9_d3d11va_hwaccel_select="vp9_decoder"
2719 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2720 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2721 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2722 vp9_dxva2_hwaccel_select="vp9_decoder"
2723 vp9_mediacodec_hwaccel_deps="mediacodec"
2724 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2725 vp9_vaapi_hwaccel_select="vp9_decoder"
2726 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2727 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2728 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2729 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2730 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2731
2732 # hardware-accelerated codecs
2733 omx_deps="dlopen pthreads"
2734 omx_extralibs='$ldl'
2735 omx_rpi_select="omx"
2736 qsvdec_select="qsv"
2737 qsvenc_select="qsv"
2738 vaapi_encode_deps="vaapi"
2739
2740 hwupload_cuda_filter_deps="cuda"
2741 scale_npp_filter_deps="cuda libnpp"
2742 scale_cuda_filter_deps="cuda_sdk"
2743
2744 nvenc_deps="cuda"
2745 nvenc_deps_any="dlopen LoadLibrary"
2746 nvenc_encoder_deps="nvenc"
2747
2748 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2749 h264_cuvid_decoder_deps="cuda cuvid"
2750 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2751 h264_mediacodec_decoder_deps="mediacodec"
2752 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2753 h264_mmal_decoder_deps="mmal"
2754 h264_nvenc_encoder_deps="nvenc"
2755 h264_omx_encoder_deps="omx"
2756 h264_qsv_decoder_deps="libmfx"
2757 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2758 h264_qsv_encoder_deps="libmfx"
2759 h264_qsv_encoder_select="qsvenc"
2760 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2761 h264_vaapi_encoder_select="vaapi_encode golomb"
2762 h264_vda_decoder_deps="vda"
2763 h264_vda_decoder_select="h264_decoder"
2764 h264_vdpau_decoder_deps="vdpau"
2765 h264_vdpau_decoder_select="h264_decoder"
2766 hevc_cuvid_decoder_deps="cuda cuvid"
2767 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2768 hevc_mediacodec_decoder_deps="mediacodec"
2769 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2770 hevc_nvenc_encoder_deps="nvenc"
2771 hevc_qsv_decoder_deps="libmfx"
2772 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2773 hevc_qsv_encoder_deps="libmfx"
2774 hevc_qsv_encoder_select="hevcparse qsvenc"
2775 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2776 hevc_vaapi_encoder_select="vaapi_encode golomb"
2777 mjpeg_cuvid_decoder_deps="cuda cuvid"
2778 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2779 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2780 mpeg1_cuvid_decoder_deps="cuda cuvid"
2781 mpeg1_vdpau_decoder_deps="vdpau"
2782 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2783 mpeg2_crystalhd_decoder_select="crystalhd"
2784 mpeg2_cuvid_decoder_deps="cuda cuvid"
2785 mpeg2_mmal_decoder_deps="mmal"
2786 mpeg2_mediacodec_decoder_deps="mediacodec"
2787 mpeg2_qsv_decoder_deps="libmfx"
2788 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2789 mpeg2_qsv_encoder_deps="libmfx"
2790 mpeg2_qsv_encoder_select="qsvenc"
2791 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2792 mpeg2_vaapi_encoder_select="vaapi_encode"
2793 mpeg4_crystalhd_decoder_select="crystalhd"
2794 mpeg4_cuvid_decoder_deps="cuda cuvid"
2795 mpeg4_mediacodec_decoder_deps="mediacodec"
2796 mpeg4_mmal_decoder_deps="mmal"
2797 mpeg4_omx_encoder_deps="omx"
2798 mpeg4_vdpau_decoder_deps="vdpau"
2799 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2800 mpeg_vdpau_decoder_deps="vdpau"
2801 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2802 msmpeg4_crystalhd_decoder_select="crystalhd"
2803 nvenc_h264_encoder_select="h264_nvenc_encoder"
2804 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2805 vc1_crystalhd_decoder_select="crystalhd"
2806 vc1_cuvid_decoder_deps="cuda cuvid"
2807 vc1_mmal_decoder_deps="mmal"
2808 vc1_vdpau_decoder_deps="vdpau"
2809 vc1_vdpau_decoder_select="vc1_decoder"
2810 vp8_cuvid_decoder_deps="cuda cuvid"
2811 vp8_mediacodec_decoder_deps="mediacodec"
2812 vp8_qsv_decoder_deps="libmfx"
2813 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2814 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2815 vp8_vaapi_encoder_select="vaapi_encode"
2816 vp9_cuvid_decoder_deps="cuda cuvid"
2817 vp9_mediacodec_decoder_deps="mediacodec"
2818 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2819 vp9_vaapi_encoder_select="vaapi_encode"
2820 wmv3_crystalhd_decoder_select="crystalhd"
2821 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2822
2823 # parsers
2824 h264_parser_select="golomb h264dsp h264parse"
2825 hevc_parser_select="hevcparse"
2826 mpegaudio_parser_select="mpegaudioheader"
2827 mpegvideo_parser_select="mpegvideo"
2828 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2829 vc1_parser_select="vc1dsp"
2830
2831 # bitstream_filters
2832 mjpeg2jpeg_bsf_select="jpegtables"
2833
2834 # external libraries
2835 aac_at_decoder_deps="audiotoolbox"
2836 ac3_at_decoder_deps="audiotoolbox"
2837 ac3_at_decoder_select="ac3_parser"
2838 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2839 alac_at_decoder_deps="audiotoolbox"
2840 amr_nb_at_decoder_deps="audiotoolbox"
2841 avisynth_deps_any="dlopen LoadLibrary"
2842 avisynth_demuxer_deps="avisynth"
2843 avisynth_demuxer_select="riffdec"
2844 eac3_at_decoder_deps="audiotoolbox"
2845 eac3_at_decoder_select="ac3_parser"
2846 gsm_ms_at_decoder_deps="audiotoolbox"
2847 ilbc_at_decoder_deps="audiotoolbox"
2848 mp1_at_decoder_deps="audiotoolbox"
2849 mp2_at_decoder_deps="audiotoolbox"
2850 mp3_at_decoder_deps="audiotoolbox"
2851 mp1_at_decoder_select="mpegaudioheader"
2852 mp2_at_decoder_select="mpegaudioheader"
2853 mp3_at_decoder_select="mpegaudioheader"
2854 pcm_alaw_at_decoder_deps="audiotoolbox"
2855 pcm_mulaw_at_decoder_deps="audiotoolbox"
2856 qdmc_at_decoder_deps="audiotoolbox"
2857 qdm2_at_decoder_deps="audiotoolbox"
2858 aac_at_encoder_deps="audiotoolbox"
2859 aac_at_encoder_select="audio_frame_queue"
2860 alac_at_encoder_deps="audiotoolbox"
2861 alac_at_encoder_select="audio_frame_queue"
2862 ilbc_at_encoder_deps="audiotoolbox"
2863 ilbc_at_encoder_select="audio_frame_queue"
2864 pcm_alaw_at_encoder_deps="audiotoolbox"
2865 pcm_alaw_at_encoder_select="audio_frame_queue"
2866 pcm_mulaw_at_encoder_deps="audiotoolbox"
2867 pcm_mulaw_at_encoder_select="audio_frame_queue"
2868 chromaprint_muxer_deps="chromaprint"
2869 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2870 libcelt_decoder_deps="libcelt"
2871 libfdk_aac_decoder_deps="libfdk_aac"
2872 libfdk_aac_encoder_deps="libfdk_aac"
2873 libfdk_aac_encoder_select="audio_frame_queue"
2874 libgme_demuxer_deps="libgme"
2875 libgsm_decoder_deps="libgsm"
2876 libgsm_encoder_deps="libgsm"
2877 libgsm_ms_decoder_deps="libgsm"
2878 libgsm_ms_encoder_deps="libgsm"
2879 libilbc_decoder_deps="libilbc"
2880 libilbc_encoder_deps="libilbc"
2881 libkvazaar_encoder_deps="libkvazaar"
2882 libmodplug_demuxer_deps="libmodplug"
2883 libmp3lame_encoder_deps="libmp3lame"
2884 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2885 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2886 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2887 libopencore_amrnb_encoder_select="audio_frame_queue"
2888 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2889 libopenh264_decoder_deps="libopenh264"
2890 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2891 libopenh264_encoder_deps="libopenh264"
2892 libopenjpeg_decoder_deps="libopenjpeg"
2893 libopenjpeg_encoder_deps="libopenjpeg"
2894 libopenmpt_demuxer_deps="libopenmpt"
2895 libopus_decoder_deps="libopus"
2896 libopus_encoder_deps="libopus"
2897 libopus_encoder_select="audio_frame_queue"
2898 librsvg_decoder_deps="librsvg"
2899 libshine_encoder_deps="libshine"
2900 libshine_encoder_select="audio_frame_queue"
2901 libspeex_decoder_deps="libspeex"
2902 libspeex_encoder_deps="libspeex"
2903 libspeex_encoder_select="audio_frame_queue"
2904 libtheora_encoder_deps="libtheora"
2905 libtwolame_encoder_deps="libtwolame"
2906 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2907 libvorbis_decoder_deps="libvorbis"
2908 libvorbis_encoder_deps="libvorbis"
2909 libvorbis_encoder_select="audio_frame_queue"
2910 libvpx_vp8_decoder_deps="libvpx"
2911 libvpx_vp8_encoder_deps="libvpx"
2912 libvpx_vp9_decoder_deps="libvpx"
2913 libvpx_vp9_encoder_deps="libvpx"
2914 libwavpack_encoder_deps="libwavpack"
2915 libwavpack_encoder_select="audio_frame_queue"
2916 libwebp_encoder_deps="libwebp"
2917 libwebp_anim_encoder_deps="libwebp"
2918 libx262_encoder_deps="libx262"
2919 libx264_encoder_deps="libx264"
2920 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2921 libx264rgb_encoder_select="libx264_encoder"
2922 libx265_encoder_deps="libx265"
2923 libxavs_encoder_deps="libxavs"
2924 libxvid_encoder_deps="libxvid"
2925 libzvbi_teletext_decoder_deps="libzvbi"
2926 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2927 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2928 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2929 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2930 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2931
2932 # demuxers / muxers
2933 ac3_demuxer_select="ac3_parser"
2934 aiff_muxer_select="iso_media"
2935 asf_demuxer_select="riffdec"
2936 asf_o_demuxer_select="riffdec"
2937 asf_muxer_select="riffenc"
2938 asf_stream_muxer_select="asf_muxer"
2939 avi_demuxer_select="iso_media riffdec exif"
2940 avi_muxer_select="riffenc"
2941 caf_demuxer_select="iso_media riffdec"
2942 caf_muxer_select="iso_media"
2943 dash_muxer_select="mp4_muxer"
2944 dirac_demuxer_select="dirac_parser"
2945 dts_demuxer_select="dca_parser"
2946 dtshd_demuxer_select="dca_parser"
2947 dv_demuxer_select="dvprofile"
2948 dv_muxer_select="dvprofile"
2949 dxa_demuxer_select="riffdec"
2950 eac3_demuxer_select="ac3_parser"
2951 f4v_muxer_select="mov_muxer"
2952 fifo_muxer_deps="threads"
2953 flac_demuxer_select="flac_parser"
2954 hds_muxer_select="flv_muxer"
2955 hls_muxer_select="mpegts_muxer"
2956 image2_alias_pix_demuxer_select="image2_demuxer"
2957 image2_brender_pix_demuxer_select="image2_demuxer"
2958 ipod_muxer_select="mov_muxer"
2959 ismv_muxer_select="mov_muxer"
2960 matroska_audio_muxer_select="matroska_muxer"
2961 matroska_demuxer_select="iso_media riffdec"
2962 matroska_demuxer_suggest="bzlib lzo zlib"
2963 matroska_muxer_select="iso_media riffenc"
2964 mmf_muxer_select="riffenc"
2965 mov_demuxer_select="iso_media riffdec"
2966 mov_demuxer_suggest="zlib"
2967 mov_muxer_select="iso_media riffenc rtpenc_chain"
2968 mp3_demuxer_select="mpegaudio_parser"
2969 mp3_muxer_select="mpegaudioheader"
2970 mp4_muxer_select="mov_muxer"
2971 mpegts_demuxer_select="iso_media"
2972 mpegts_muxer_select="adts_muxer latm_muxer"
2973 mpegtsraw_demuxer_select="mpegts_demuxer"
2974 mxf_d10_muxer_select="mxf_muxer"
2975 mxf_opatom_muxer_select="mxf_muxer"
2976 nut_muxer_select="riffenc"
2977 nuv_demuxer_select="riffdec"
2978 oga_muxer_select="ogg_muxer"
2979 ogg_demuxer_select="dirac_parse"
2980 ogv_muxer_select="ogg_muxer"
2981 opus_muxer_select="ogg_muxer"
2982 psp_muxer_select="mov_muxer"
2983 rtp_demuxer_select="sdp_demuxer"
2984 rtp_muxer_select="golomb"
2985 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2986 rtsp_demuxer_select="http_protocol rtpdec"
2987 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2988 sap_demuxer_select="sdp_demuxer"
2989 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2990 sdp_demuxer_select="rtpdec"
2991 smoothstreaming_muxer_select="ismv_muxer"
2992 spdif_muxer_select="aac_parser"
2993 spx_muxer_select="ogg_muxer"
2994 swf_demuxer_suggest="zlib"
2995 tak_demuxer_select="tak_parser"
2996 tg2_muxer_select="mov_muxer"
2997 tgp_muxer_select="mov_muxer"
2998 vobsub_demuxer_select="mpegps_demuxer"
2999 w64_demuxer_select="wav_demuxer"
3000 w64_muxer_select="wav_muxer"
3001 wav_demuxer_select="riffdec"
3002 wav_muxer_select="riffenc"
3003 webm_muxer_select="iso_media riffenc"
3004 webm_dash_manifest_demuxer_select="matroska_demuxer"
3005 wtv_demuxer_select="mpegts_demuxer riffdec"
3006 wtv_muxer_select="mpegts_muxer riffenc"
3007 xmv_demuxer_select="riffdec"
3008 xwma_demuxer_select="riffdec"
3009
3010 # indevs / outdevs
3011 alsa_indev_deps="alsa"
3012 alsa_outdev_deps="alsa"
3013 avfoundation_indev_deps="pthreads"
3014 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3015 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3016 caca_outdev_deps="libcaca"
3017 decklink_indev_deps="decklink threads"
3018 decklink_indev_extralibs="-lstdc++"
3019 decklink_outdev_deps="decklink threads"
3020 decklink_outdev_extralibs="-lstdc++"
3021 libndi_newtek_indev_deps="libndi_newtek"
3022 libndi_newtek_indev_extralibs="-lndi"
3023 libndi_newtek_outdev_deps="libndi_newtek"
3024 libndi_newtek_outdev_extralibs="-lndi"
3025 dshow_indev_deps="IBaseFilter"
3026 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3027 dv1394_indev_deps="dv1394"
3028 dv1394_indev_select="dv_demuxer"
3029 fbdev_indev_deps="linux_fb_h"
3030 fbdev_outdev_deps="linux_fb_h"
3031 gdigrab_indev_deps="CreateDIBSection"
3032 gdigrab_indev_extralibs="-lgdi32"
3033 gdigrab_indev_select="bmp_decoder"
3034 iec61883_indev_deps="libiec61883"
3035 jack_indev_deps="jack"
3036 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3037 lavfi_indev_deps="avfilter"
3038 libcdio_indev_deps="libcdio"
3039 libdc1394_indev_deps="libdc1394"
3040 libv4l2_indev_deps="libv4l2"
3041 openal_indev_deps="openal"
3042 opengl_outdev_deps="opengl"
3043 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3044 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3045 pulse_indev_deps="libpulse"
3046 pulse_outdev_deps="libpulse"
3047 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3048 qtkit_indev_select="qtkit"
3049 sdl2_outdev_deps="sdl2"
3050 sndio_indev_deps="sndio"
3051 sndio_outdev_deps="sndio"
3052 v4l_indev_deps="linux_videodev_h"
3053 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3054 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3055 vfwcap_indev_deps="vfw32 vfwcap_defines"
3056 xcbgrab_indev_deps="libxcb"
3057 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3058 xv_outdev_extralibs="-lXv -lX11 -lXext"
3059
3060 # protocols
3061 async_protocol_deps="threads"
3062 bluray_protocol_deps="libbluray"
3063 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3064 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3065 ffrtmpcrypt_protocol_select="tcp_protocol"
3066 ffrtmphttp_protocol_deps="!librtmp_protocol"
3067 ffrtmphttp_protocol_select="http_protocol"
3068 ftp_protocol_select="tcp_protocol"
3069 gopher_protocol_select="network"
3070 http_protocol_select="tcp_protocol"
3071 httpproxy_protocol_select="tcp_protocol"
3072 https_protocol_select="tls_protocol"
3073 icecast_protocol_select="http_protocol"
3074 librtmp_protocol_deps="librtmp"
3075 librtmpe_protocol_deps="librtmp"
3076 librtmps_protocol_deps="librtmp"
3077 librtmpt_protocol_deps="librtmp"
3078 librtmpte_protocol_deps="librtmp"
3079 libsmbclient_protocol_deps="libsmbclient gplv3"
3080 libssh_protocol_deps="libssh"
3081 mmsh_protocol_select="http_protocol"
3082 mmst_protocol_select="network"
3083 rtmp_protocol_deps="!librtmp_protocol"
3084 rtmp_protocol_select="tcp_protocol"
3085 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3086 rtmps_protocol_deps="!librtmp_protocol"
3087 rtmps_protocol_select="tls_protocol"
3088 rtmpt_protocol_select="ffrtmphttp_protocol"
3089 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3090 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3091 rtp_protocol_select="udp_protocol"
3092 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3093 sctp_protocol_select="network"
3094 srtp_protocol_select="rtp_protocol srtp"
3095 tcp_protocol_select="network"
3096 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3097 tls_gnutls_protocol_select="tcp_protocol"
3098 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3099 tls_openssl_protocol_select="tcp_protocol"
3100 tls_schannel_protocol_deps="schannel"
3101 tls_schannel_protocol_select="tcp_protocol"
3102 tls_securetransport_protocol_deps="securetransport"
3103 tls_securetransport_protocol_select="tcp_protocol"
3104 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3105 udp_protocol_select="network"
3106 udplite_protocol_select="network"
3107 unix_protocol_deps="sys_un_h"
3108 unix_protocol_select="network"
3109
3110 # filters
3111 afftfilt_filter_deps="avcodec"
3112 afftfilt_filter_select="fft"
3113 afir_filter_deps="avcodec"
3114 afir_filter_select="fft"
3115 amovie_filter_deps="avcodec avformat"
3116 aresample_filter_deps="swresample"
3117 ass_filter_deps="libass"
3118 atempo_filter_deps="avcodec"
3119 atempo_filter_select="rdft"
3120 azmq_filter_deps="libzmq"
3121 blackframe_filter_deps="gpl"
3122 boxblur_filter_deps="gpl"
3123 bs2b_filter_deps="libbs2b"
3124 colormatrix_filter_deps="gpl"
3125 cover_rect_filter_deps="avcodec avformat gpl"
3126 cropdetect_filter_deps="gpl"
3127 deinterlace_qsv_filter_deps="libmfx"
3128 deinterlace_vaapi_filter_deps="vaapi"
3129 delogo_filter_deps="gpl"
3130 deshake_filter_select="pixelutils"
3131 drawtext_filter_deps="libfreetype"
3132 elbg_filter_deps="avcodec"
3133 eq_filter_deps="gpl"
3134 fftfilt_filter_deps="avcodec"
3135 fftfilt_filter_select="rdft"
3136 find_rect_filter_deps="avcodec avformat gpl"
3137 firequalizer_filter_deps="avcodec"
3138 firequalizer_filter_select="rdft"
3139 flite_filter_deps="libflite"
3140 framerate_filter_select="pixelutils"
3141 frei0r_filter_deps="frei0r dlopen"
3142 frei0r_src_filter_deps="frei0r dlopen"
3143 fspp_filter_deps="gpl"
3144 geq_filter_deps="gpl"
3145 histeq_filter_deps="gpl"
3146 hqdn3d_filter_deps="gpl"
3147 interlace_filter_deps="gpl"
3148 kerndeint_filter_deps="gpl"
3149 ladspa_filter_deps="ladspa dlopen"
3150 mcdeint_filter_deps="avcodec gpl"
3151 movie_filter_deps="avcodec avformat"
3152 mpdecimate_filter_deps="gpl"
3153 mpdecimate_filter_select="pixelutils"
3154 mptestsrc_filter_deps="gpl"
3155 negate_filter_deps="lut_filter"
3156 nnedi_filter_deps="gpl"
3157 ocr_filter_deps="libtesseract"
3158 ocv_filter_deps="libopencv"
3159 owdenoise_filter_deps="gpl"
3160 pan_filter_deps="swresample"
3161 perspective_filter_deps="gpl"
3162 phase_filter_deps="gpl"
3163 pp7_filter_deps="gpl"
3164 pp_filter_deps="gpl postproc"
3165 pullup_filter_deps="gpl"
3166 removelogo_filter_deps="avcodec avformat swscale"
3167 repeatfields_filter_deps="gpl"
3168 resample_filter_deps="avresample"
3169 rubberband_filter_deps="librubberband"
3170 sab_filter_deps="gpl swscale"
3171 scale2ref_filter_deps="swscale"
3172 scale_filter_deps="swscale"
3173 scale_qsv_filter_deps="libmfx"
3174 select_filter_select="pixelutils"
3175 showcqt_filter_deps="avcodec avformat swscale"
3176 showcqt_filter_select="fft"
3177 showfreqs_filter_deps="avcodec"
3178 showfreqs_filter_select="fft"
3179 showspectrum_filter_deps="avcodec"
3180 showspectrum_filter_select="fft"
3181 showspectrumpic_filter_deps="avcodec"
3182 showspectrumpic_filter_select="fft"
3183 signature_filter_deps="gpl avcodec avformat"
3184 smartblur_filter_deps="gpl swscale"
3185 sofalizer_filter_deps="libmysofa avcodec"
3186 sofalizer_filter_select="fft"
3187 spectrumsynth_filter_deps="avcodec"
3188 spectrumsynth_filter_select="fft"
3189 spp_filter_deps="gpl avcodec"
3190 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3191 stereo3d_filter_deps="gpl"
3192 subtitles_filter_deps="avformat avcodec libass"
3193 super2xsai_filter_deps="gpl"
3194 pixfmts_super2xsai_test_deps="super2xsai_filter"
3195 tinterlace_filter_deps="gpl"
3196 tinterlace_merge_test_deps="tinterlace_filter"
3197 tinterlace_pad_test_deps="tinterlace_filter"
3198 uspp_filter_deps="gpl avcodec"
3199 vaguedenoiser_filter_deps="gpl"
3200 vidstabdetect_filter_deps="libvidstab"
3201 vidstabtransform_filter_deps="libvidstab"
3202 libvmaf_filter_deps="libvmaf"
3203 zmq_filter_deps="libzmq"
3204 zoompan_filter_deps="swscale"
3205 zscale_filter_deps="libzimg"
3206 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3207
3208 # examples
3209 avio_dir_cmd_deps="avformat avutil"
3210 avio_reading_deps="avformat avcodec avutil"
3211 decode_audio_example_deps="avcodec avutil"
3212 decode_video_example_deps="avcodec avutil"
3213 demuxing_decoding_example_deps="avcodec avformat avutil"
3214 encode_audio_example_deps="avcodec avutil"
3215 encode_video_example_deps="avcodec avutil"
3216 extract_mvs_example_deps="avcodec avformat avutil"
3217 filter_audio_example_deps="avfilter avutil"
3218 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3219 filtering_video_example_deps="avfilter avcodec avformat avutil"
3220 http_multiclient_example_deps="avformat avutil fork"
3221 hw_decode_example_deps="avcodec avformat avutil"
3222 metadata_example_deps="avformat avutil"
3223 muxing_example_deps="avcodec avformat avutil swscale"
3224 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3225 remuxing_example_deps="avcodec avformat avutil"
3226 resampling_audio_example_deps="avutil swresample"
3227 scaling_video_example_deps="avutil swscale"
3228 transcode_aac_example_deps="avcodec avformat swresample"
3229 transcoding_example_deps="avfilter avcodec avformat avutil"
3230
3231 # libraries, in linking order
3232 avcodec_deps="avutil"
3233 avcodec_select="null_bsf"
3234 avdevice_deps="avformat avcodec avutil"
3235 avfilter_deps="avutil"
3236 avformat_deps="avcodec avutil"
3237 avresample_deps="avutil"
3238 postproc_deps="avutil gpl"
3239 swresample_deps="avutil"
3240 swscale_deps="avutil"
3241
3242 # programs
3243 ffmpeg_deps="avcodec avfilter avformat swresample"
3244 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3245                null_filter
3246                trim_filter"
3247 ffplay_deps="avcodec avformat swscale swresample sdl2"
3248 ffplay_extralibs='$sdl2_extralibs'
3249 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3250 ffprobe_deps="avcodec avformat"
3251 ffserver_deps="avformat fork sarestart"
3252 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3253
3254 # documentation
3255 podpages_deps="perl"
3256 manpages_deps="perl pod2man"
3257 htmlpages_deps="perl"
3258 htmlpages_deps_any="makeinfo_html texi2html"
3259 txtpages_deps="perl makeinfo"
3260 doc_deps_any="manpages htmlpages podpages txtpages"
3261
3262 # default parameters
3263
3264 logfile="ffbuild/config.log"
3265
3266 # installation paths
3267 prefix_default="/usr/local"
3268 bindir_default='${prefix}/bin'
3269 datadir_default='${prefix}/share/ffmpeg'
3270 docdir_default='${prefix}/share/doc/ffmpeg'
3271 incdir_default='${prefix}/include'
3272 libdir_default='${prefix}/lib'
3273 mandir_default='${prefix}/share/man'
3274
3275 # toolchain
3276 ar_default="ar"
3277 cc_default="gcc"
3278 cxx_default="g++"
3279 host_cc_default="gcc"
3280 doxygen_default="doxygen"
3281 install="install"
3282 ln_s_default="ln -s -f"
3283 nm_default="nm -g"
3284 pkg_config_default=pkg-config
3285 ranlib_default="ranlib"
3286 strip_default="strip"
3287 version_script='--version-script'
3288 x86asmexe_default="nasm"
3289 windres_default="windres"
3290 nvcc_default="nvcc"
3291 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3292
3293 # OS
3294 target_os_default=$(tolower $(uname -s))
3295 host_os=$target_os_default
3296
3297 # machine
3298 if test "$target_os_default" = aix; then
3299     arch_default=$(uname -p)
3300     strip_default="strip -X32_64"
3301 else
3302     arch_default=$(uname -m)
3303 fi
3304 cpu="generic"
3305 intrinsics="none"
3306
3307 # configurable options
3308 enable $PROGRAM_LIST
3309 enable $DOCUMENT_LIST
3310 enable $EXAMPLE_LIST
3311 enable $(filter_out avresample $LIBRARY_LIST)
3312 enable stripping
3313
3314 enable asm
3315 enable debug
3316 enable doc
3317 enable faan faandct faanidct
3318 enable optimizations
3319 enable runtime_cpudetect
3320 enable safe_bitstream_reader
3321 enable static
3322 enable swscale_alpha
3323 enable valgrind_backtrace
3324
3325 sws_max_filter_size_default=256
3326 set_default sws_max_filter_size
3327
3328 # build settings
3329 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3330 LIBPREF="lib"
3331 LIBSUF=".a"
3332 FULLNAME='$(NAME)$(BUILDSUF)'
3333 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3334 SLIBPREF="lib"
3335 SLIBSUF=".so"
3336 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3337 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3338 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3339 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3340 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3341 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3342 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3343
3344 asflags_filter=echo
3345 cflags_filter=echo
3346 ldflags_filter=echo
3347
3348 AS_C='-c'
3349 AS_O='-o $@'
3350 CC_C='-c'
3351 CC_E='-E -o $@'
3352 CC_O='-o $@'
3353 CXX_C='-c'
3354 CXX_O='-o $@'
3355 OBJCC_C='-c'
3356 OBJCC_E='-E -o $@'
3357 OBJCC_O='-o $@'
3358 X86ASM_O='-o $@'
3359 LD_O='-o $@'
3360 LD_LIB='-l%'
3361 LD_PATH='-L'
3362 HOSTCC_C='-c'
3363 HOSTCC_E='-E -o $@'
3364 HOSTCC_O='-o $@'
3365 HOSTLD_O='-o $@'
3366 NVCC_C='-c'
3367 NVCC_O='-o $@'
3368
3369 host_extralibs='-lm'
3370 host_cflags_filter=echo
3371 host_ldflags_filter=echo
3372
3373 target_path='$(CURDIR)'
3374
3375 # since the object filename is not given with the -MM flag, the compiler
3376 # is only able to print the basename, and we must add the path ourselves
3377 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3378 DEPFLAGS='-MM'
3379
3380 mkdir -p ffbuild
3381
3382 # find source path
3383 if test -f configure; then
3384     source_path=.
3385 else
3386     source_path=$(cd $(dirname "$0"); pwd)
3387     case "$source_path" in
3388         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3389     esac
3390     test -e "$source_path/config.h" &&
3391         die "Out of tree builds are impossible with config.h in source dir."
3392 fi
3393
3394 for v in "$@"; do
3395     r=${v#*=}
3396     l=${v%"$r"}
3397     r=$(sh_quote "$r")
3398     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3399 done
3400
3401 find_things(){
3402     thing=$1
3403     pattern=$2
3404     file=$source_path/$3
3405     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3406 }
3407
3408 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3409 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3410 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3411 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3412 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3413 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3414 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3415 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3416 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3417
3418 find_things_extern(){
3419     thing=$1
3420     pattern=$2
3421     file=$source_path/$3
3422     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3423 }
3424
3425 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3426 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3427
3428 ALL_COMPONENTS="
3429     $BSF_LIST
3430     $DECODER_LIST
3431     $DEMUXER_LIST
3432     $ENCODER_LIST
3433     $FILTER_LIST
3434     $HWACCEL_LIST
3435     $INDEV_LIST
3436     $MUXER_LIST
3437     $OUTDEV_LIST
3438     $PARSER_LIST
3439     $PROTOCOL_LIST
3440 "
3441
3442 for n in $COMPONENT_LIST; do
3443     v=$(toupper ${n%s})_LIST
3444     eval enable \$$v
3445     eval ${n}_if_any="\$$v"
3446 done
3447
3448 enable $ARCH_EXT_LIST
3449
3450 die_unknown(){
3451     echo "Unknown option \"$1\"."
3452     echo "See $0 --help for available options."
3453     exit 1
3454 }
3455
3456 print_in_columns() {
3457     cols=$(expr $ncols / 24)
3458     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3459 }
3460
3461 show_list() {
3462     suffix=_$1
3463     shift
3464     echo $* | sed s/$suffix//g | print_in_columns
3465     exit 0
3466 }
3467
3468 rand_list(){
3469     IFS=', '
3470     set -- $*
3471     unset IFS
3472     for thing; do
3473         comp=${thing%:*}
3474         prob=${thing#$comp}
3475         prob=${prob#:}
3476         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3477         echo "prob ${prob:-0.5}"
3478         printf '%s\n' $comp
3479     done
3480 }
3481
3482 do_random(){
3483     action=$1
3484     shift
3485     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3486     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3487 }
3488
3489 for opt do
3490     optval="${opt#*=}"
3491     case "$opt" in
3492         --extra-ldflags=*)
3493             add_ldflags $optval
3494         ;;
3495         --extra-ldexeflags=*)
3496             add_ldexeflags $optval
3497         ;;
3498         --extra-ldlibflags=*)
3499             add_ldlibflags $optval
3500         ;;
3501         --extra-libs=*)
3502             add_extralibs $optval
3503         ;;
3504         --disable-devices)
3505             disable $INDEV_LIST $OUTDEV_LIST
3506         ;;
3507         --enable-debug=*)
3508             debuglevel="$optval"
3509         ;;
3510         --disable-programs)
3511             disable $PROGRAM_LIST
3512         ;;
3513         --disable-everything)
3514             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3515         ;;
3516         --disable-all)
3517             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3518             disable $LIBRARY_LIST $PROGRAM_LIST doc
3519             enable avutil
3520         ;;
3521         --enable-random|--disable-random)
3522             action=${opt%%-random}
3523             do_random ${action#--} $COMPONENT_LIST
3524         ;;
3525         --enable-random=*|--disable-random=*)
3526             action=${opt%%-random=*}
3527             do_random ${action#--} $optval
3528         ;;
3529         --enable-sdl)
3530             enable sdl2
3531         ;;
3532         --enable-*=*|--disable-*=*)
3533             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3534             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3535             eval list=\$$(toupper $thing)_LIST
3536             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3537             list=$(filter "$name" $list)
3538             [ "$list" = "" ] && warn "Option $opt did not match anything"
3539             $action $list
3540         ;;
3541         --enable-yasm|--disable-yasm)
3542             warn "The ${opt} option is only provided for compatibility and will be\n"\
3543                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3544             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3545         ;;
3546         --yasmexe=*)
3547             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3548                  "removed in the future. Use --x86asmexe instead."
3549             x86asmexe="$optval"
3550         ;;
3551         --enable-?*|--disable-?*)
3552             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3553             if is_in $option $COMPONENT_LIST; then
3554                 test $action = disable && action=unset
3555                 eval $action \$$(toupper ${option%s})_LIST
3556             elif is_in $option $CMDLINE_SELECT; then
3557                 $action $option
3558             else
3559                 die_unknown $opt
3560             fi
3561         ;;
3562         --list-*)
3563             NAME="${opt#--list-}"
3564             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3565             NAME=${NAME%s}
3566             eval show_list $NAME \$$(toupper $NAME)_LIST
3567         ;;
3568         --help|-h) show_help
3569         ;;
3570         --quiet|-q) quiet=yes
3571         ;;
3572         --fatal-warnings) enable fatal_warnings
3573         ;;
3574         --libfuzzer=*)
3575             libfuzzer_path="$optval"
3576         ;;
3577         *)
3578             optname="${opt%%=*}"
3579             optname="${optname#--}"
3580             optname=$(echo "$optname" | sed 's/-/_/g')
3581             if is_in $optname $CMDLINE_SET; then
3582                 eval $optname='$optval'
3583             elif is_in $optname $CMDLINE_APPEND; then
3584                 append $optname "$optval"
3585             else
3586                 die_unknown $opt
3587             fi
3588         ;;
3589     esac
3590 done
3591
3592 for e in $env; do
3593     eval "export $e"
3594 done
3595
3596 if disabled autodetect; then
3597
3598     # Unless iconv is explicitely disabled by the user, we still want to probe
3599     # for the iconv from the libc.
3600     disabled iconv || enable libc_iconv
3601
3602     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3603     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3604 fi
3605 # Mark specifically enabled, but normally autodetected libraries as requested.
3606 for lib in $AUTODETECT_LIBS; do
3607     enabled $lib && request $lib
3608 done
3609 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3610 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3611 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3612
3613 disabled logging && logfile=/dev/null
3614
3615 die_license_disabled() {
3616     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3617 }
3618
3619 die_license_disabled_gpl() {
3620     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3621 }
3622
3623 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3624 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3625
3626 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3627 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3628
3629 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3630
3631 # Disable all the library-specific components if the library itself
3632 # is disabled, see AVCODEC_LIST and following _LIST variables.
3633
3634 disable_components(){
3635     disabled ${1} && disable $(
3636         eval components="\$$(toupper ${1})_COMPONENTS"
3637         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3638     )
3639 }
3640
3641 map 'disable_components $v' $LIBRARY_LIST
3642
3643 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3644 set >> $logfile
3645
3646 test -n "$valgrind" && toolchain="valgrind-memcheck"
3647
3648 enabled ossfuzz && {
3649     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3650     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3651 }
3652
3653 case "$toolchain" in
3654     *-asan)
3655         cc_default="${toolchain%-asan}"
3656         add_cflags  -fsanitize=address
3657         add_ldflags -fsanitize=address
3658     ;;
3659     *-msan)
3660         cc_default="${toolchain%-msan}"
3661         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3662         add_ldflags -fsanitize=memory
3663     ;;
3664     *-tsan)
3665         cc_default="${toolchain%-tsan}"
3666         add_cflags  -fsanitize=thread -fPIE
3667         add_ldflags -fsanitize=thread -pie
3668         case "$toolchain" in
3669             gcc-tsan)
3670                 add_cflags  -fPIC
3671                 add_ldflags -fPIC
3672                 ;;
3673         esac
3674     ;;
3675     *-usan)
3676         cc_default="${toolchain%-usan}"
3677         add_cflags  -fsanitize=undefined
3678         add_ldflags -fsanitize=undefined
3679     ;;
3680     valgrind-*)
3681         target_exec_default="valgrind"
3682         case "$toolchain" in
3683             valgrind-massif)
3684                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3685                 ;;
3686             valgrind-memcheck)
3687                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3688                 ;;
3689         esac
3690     ;;
3691     msvc)
3692         # Check whether the current MSVC version needs the C99 converter.
3693         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3694         # support enough of C99 to build ffmpeg. Default to the new
3695         # behaviour if the regexp was unable to match anything, since this
3696         # successfully parses the version number of existing supported
3697         # versions that require the converter (MSVC 2010 and 2012).
3698         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3699         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3700             cc_default="cl"
3701             cxx_default="cl"
3702         else
3703             cc_default="c99wrap cl"
3704             cxx_default="c99wrap cl"
3705         fi
3706         ld_default="$source_path/compat/windows/mslink"
3707         nm_default="dumpbin -symbols"
3708         ar_default="lib"
3709         case "$arch" in
3710         arm*)
3711             as_default="armasm"
3712             ;;
3713         esac
3714         target_os_default="win32"
3715         # Use a relative path for TMPDIR. This makes sure all the
3716         # ffconf temp files are written with a relative path, avoiding
3717         # issues with msys/win32 path conversion for MSVC parameters
3718         # such as -Fo<file> or -out:<file>.
3719         TMPDIR=.
3720     ;;
3721     icl)
3722         cc_default="icl"
3723         ld_default="xilink"
3724         nm_default="dumpbin -symbols"
3725         ar_default="xilib"
3726         target_os_default="win32"
3727         TMPDIR=.
3728     ;;
3729     gcov)
3730         add_cflags  -fprofile-arcs -ftest-coverage
3731         add_ldflags -fprofile-arcs -ftest-coverage
3732     ;;
3733     llvm-cov)
3734         add_cflags -fprofile-arcs -ftest-coverage
3735         add_ldflags --coverage
3736     ;;
3737     hardened)
3738         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3739         add_cflags   -fno-strict-overflow -fstack-protector-all
3740         add_ldflags  -Wl,-z,relro -Wl,-z,now
3741         add_cflags   -fPIE
3742         add_ldexeflags -fPIE -pie
3743     ;;
3744     ?*)
3745         die "Unknown toolchain $toolchain"
3746     ;;
3747 esac
3748
3749 test -n "$cross_prefix" && enable cross_compile
3750
3751 if enabled cross_compile; then
3752     test -n "$arch" && test -n "$target_os" ||
3753         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3754 fi
3755
3756 ar_default="${cross_prefix}${ar_default}"
3757 cc_default="${cross_prefix}${cc_default}"
3758 cxx_default="${cross_prefix}${cxx_default}"
3759 nm_default="${cross_prefix}${nm_default}"
3760 pkg_config_default="${cross_prefix}${pkg_config_default}"
3761 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3762     ranlib_default="${cross_prefix}${ranlib_default} -D"
3763 else
3764     ranlib_default="${cross_prefix}${ranlib_default}"
3765 fi
3766 strip_default="${cross_prefix}${strip_default}"
3767 windres_default="${cross_prefix}${windres_default}"
3768
3769 sysinclude_default="${sysroot}/usr/include"
3770
3771 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3772     target_exec target_os x86asmexe nvcc
3773 enabled cross_compile || host_cc_default=$cc
3774 set_default host_cc
3775
3776 pkg_config_fail_message=""
3777 if ! $pkg_config --version >/dev/null 2>&1; then
3778     warn "$pkg_config not found, library detection may fail."
3779     pkg_config=false
3780 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3781     pkg_config_fail_message="
3782 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3783 fi
3784
3785 if test $doxygen != $doxygen_default && \
3786   ! $doxygen --version >/dev/null 2>&1; then
3787     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3788 fi
3789
3790 exesuf() {
3791     case $1 in
3792         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3793     esac
3794 }
3795
3796 EXESUF=$(exesuf $target_os)
3797 HOSTEXESUF=$(exesuf $host_os)
3798
3799 # set temporary file name
3800 : ${TMPDIR:=$TEMPDIR}
3801 : ${TMPDIR:=$TMP}
3802 : ${TMPDIR:=/tmp}
3803
3804 if [ -n "$tempprefix" ] ; then
3805     mktemp(){
3806         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3807         echo "$tmpname"
3808         mkdir "$tmpname"
3809     }
3810 elif ! check_cmd mktemp -u XXXXXX; then
3811     # simple replacement for missing mktemp
3812     # NOT SAFE FOR GENERAL USE
3813     mktemp(){
3814         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3815         echo "$tmpname"
3816         mkdir "$tmpname"
3817     }
3818 fi
3819
3820 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3821     die "Unable to create temporary directory in $TMPDIR."
3822
3823 tmpfile(){
3824     tmp="${FFTMPDIR}/test"$2
3825     (set -C; exec > $tmp) 2> /dev/null ||
3826         die "Unable to create temporary file in $FFTMPDIR."
3827     eval $1=$tmp
3828 }
3829
3830 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3831 trap 'exit 2' INT
3832
3833 tmpfile TMPASM .asm
3834 tmpfile TMPC   .c
3835 tmpfile TMPCPP .cpp
3836 tmpfile TMPE   $EXESUF
3837 tmpfile TMPH   .h
3838 tmpfile TMPM   .m
3839 tmpfile TMPO   .o
3840 tmpfile TMPS   .S
3841 tmpfile TMPSH  .sh
3842 tmpfile TMPV   .ver
3843
3844 unset -f mktemp
3845
3846 chmod +x $TMPE
3847
3848 # make sure we can execute files in $TMPDIR
3849 cat > $TMPSH 2>> $logfile <<EOF
3850 #! /bin/sh
3851 EOF
3852 chmod +x $TMPSH >> $logfile 2>&1
3853 if ! $TMPSH >> $logfile 2>&1; then
3854     cat <<EOF
3855 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3856 variable to another directory and make sure that it is not mounted noexec.
3857 EOF
3858     die "Sanity test failed."
3859 fi
3860
3861 armasm_flags(){
3862     for flag; do
3863         case $flag in
3864             # Filter out MSVC cl.exe options from cflags that shouldn't
3865             # be passed to gas-preprocessor
3866             -M[TD]*)                                            ;;
3867             *)                  echo $flag                      ;;
3868         esac
3869    done
3870 }
3871
3872 ccc_flags(){
3873     for flag; do
3874         case $flag in
3875             -std=c99)           echo -c99                       ;;
3876             -mcpu=*)            echo -arch ${flag#*=}           ;;
3877             -mieee)             echo -ieee                      ;;
3878             -O*|-fast)          echo $flag                      ;;
3879             -fno-math-errno)    echo -assume nomath_errno       ;;
3880             -g)                 echo -g3                        ;;
3881             -Wall)              echo -msg_enable level2         ;;
3882             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3883             -Wl,*)              echo $flag                      ;;
3884             -f*|-W*)                                            ;;
3885             *)                  echo $flag                      ;;
3886         esac
3887    done
3888 }
3889
3890 cparser_flags(){
3891     for flag; do
3892         case $flag in
3893             -Wno-switch)             echo -Wno-switch-enum ;;
3894             -Wno-format-zero-length) ;;
3895             -Wdisabled-optimization) ;;
3896             -Wno-pointer-sign)       echo -Wno-other ;;
3897             *)                       echo $flag ;;
3898         esac
3899     done
3900 }
3901
3902 msvc_common_flags(){
3903     for flag; do
3904         case $flag in
3905             # In addition to specifying certain flags under the compiler
3906             # specific filters, they must be specified here as well or else the
3907             # generic catch all at the bottom will print the original flag.
3908             -Wall)                ;;
3909             -Wextra)              ;;
3910             -std=c99)             ;;
3911             # Common flags
3912             -fomit-frame-pointer) ;;
3913             -g)                   echo -Z7 ;;
3914             -fno-math-errno)      ;;
3915             -fno-common)          ;;
3916             -fno-signed-zeros)    ;;
3917             -fPIC)                ;;
3918             -mthumb)              ;;
3919             -march=*)             ;;
3920             -lz)                  echo zlib.lib ;;
3921             -lx264)               echo libx264.lib ;;
3922             -lstdc++)             ;;
3923             -l*)                  echo ${flag#-l}.lib ;;
3924             -LARGEADDRESSAWARE)   echo $flag ;;
3925             -L*)                  echo -libpath:${flag#-L} ;;
3926             *)                    echo $flag ;;
3927         esac
3928     done
3929 }
3930
3931 msvc_flags(){
3932     msvc_common_flags "$@"
3933     for flag; do
3934         case $flag in
3935             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3936                                        -wd4554 ;;
3937             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3938                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3939                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3940                                        -wd4307 \
3941                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3942         esac
3943     done
3944 }
3945
3946 icl_flags(){
3947     msvc_common_flags "$@"
3948     for flag; do
3949         case $flag in
3950             # Despite what Intel's documentation says -Wall, which is supported
3951             # on Windows, does enable remarks so disable them here.
3952             -Wall)                echo $flag -Qdiag-disable:remark ;;
3953             -std=c99)             echo -Qstd=c99 ;;
3954             -flto)                echo -ipo ;;
3955         esac
3956     done
3957 }
3958
3959 icc_flags(){
3960     for flag; do
3961         case $flag in
3962             -flto)                echo -ipo ;;
3963             *)                    echo $flag ;;
3964         esac
3965     done
3966 }
3967
3968 pgi_flags(){
3969     for flag; do
3970         case $flag in
3971             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3972             -fomit-frame-pointer) echo -Mnoframe ;;
3973             -g)                   echo -gopt ;;
3974             *)                    echo $flag ;;
3975         esac
3976     done
3977 }
3978
3979 suncc_flags(){
3980     for flag; do
3981         case $flag in
3982             -march=*|-mcpu=*)
3983                 case "${flag#*=}" in
3984                     native)                   echo -xtarget=native       ;;
3985                     v9|niagara)               echo -xarch=sparc          ;;
3986                     ultrasparc)               echo -xarch=sparcvis       ;;
3987                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3988                     i586|pentium)             echo -xchip=pentium        ;;
3989                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3990                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3991                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3992                     pentium4*)          echo -xtarget=pentium4           ;;
3993                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3994                     *-sse3)             echo -xarch=sse3                 ;;
3995                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3996                     bonnell)                   echo -xarch=ssse3         ;;
3997                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3998                     westmere)                  echo -xtarget=westmere    ;;
3999                     silvermont)                echo -xarch=sse4_2        ;;
4000                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4001                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4002                                                echo -xarch=avx           ;;
4003                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4004                     btver1)                    echo -xarch=amdsse4a      ;;
4005                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4006                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4007                     k8|opteron|athlon64|athlon-fx)
4008                                                echo -xarch=sse2a         ;;
4009                     athlon*)                   echo -xarch=pentium_proa  ;;
4010                 esac
4011                 ;;
4012             -std=c99)             echo -xc99              ;;
4013             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4014             -fPIC)                echo -KPIC -xcode=pic32 ;;
4015             -W*,*)                echo $flag              ;;
4016             -f*-*|-W*|-mimpure-text)                      ;;
4017             -shared)              echo -G                 ;;
4018             *)                    echo $flag              ;;
4019         esac
4020     done
4021 }
4022
4023 tms470_flags(){
4024     for flag; do
4025         case $flag in
4026             -march=*|-mcpu=*)
4027                 case "${flag#*=}" in
4028                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4029                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4030                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4031                     armv6*|arm11*)          echo -mv=6   ;;
4032                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4033                                             echo -mv=5e  ;;
4034                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4035                 esac
4036                 ;;
4037             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4038             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4039             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4040             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4041             -msoft-float)   echo --float_support=vfplib       ;;
4042             -O[0-3]|-mf=*)  echo $flag                        ;;
4043             -g)             echo -g -mn                       ;;
4044             -pds=*)         echo $flag                        ;;
4045             -D*|-I*)        echo $flag                        ;;
4046             --gcc|--abi=*)  echo $flag                        ;;
4047             -me)            echo $flag                        ;;
4048         esac
4049     done
4050 }
4051
4052 probe_cc(){
4053     pfx=$1
4054     _cc=$2
4055     first=$3
4056
4057     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4058     unset _ld_o _ldflags _ld_lib _ld_path
4059     unset _depflags _DEPCMD _DEPFLAGS
4060     _flags_filter=echo
4061
4062     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4063         true # no-op to avoid reading stdin in following checks
4064     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4065         _type=llvm_gcc
4066         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4067         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4068         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4069         _cflags_speed='-O3'
4070         _cflags_size='-Os'
4071     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4072         _type=gcc
4073         gcc_version=$($_cc --version | head -n1)
4074         gcc_basever=$($_cc -dumpversion)
4075         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4076         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4077         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4078         case $gcc_basever in
4079             2) ;;
4080             2.*) ;;
4081             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4082         esac
4083         if [ "$first" = true ]; then
4084             case $gcc_basever in
4085                 4.2*)
4086                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4087             esac
4088         fi
4089         _cflags_speed='-O3'
4090         _cflags_size='-Os'
4091     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4092         _type=icc
4093         _ident=$($_cc --version | head -n1)
4094         _depflags='-MMD'
4095         _cflags_speed='-O3'
4096         _cflags_size='-Os'
4097         _cflags_noopt='-O1'
4098         _flags_filter=icc_flags
4099     elif $_cc -v 2>&1 | grep -q xlc; then
4100         _type=xlc
4101         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4102         _cflags_speed='-O5'
4103         _cflags_size='-O5 -qcompact'
4104     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4105         _type=ccc
4106         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4107         _DEPFLAGS='-M'
4108         _cflags_speed='-fast'
4109         _cflags_size='-O1'
4110         _flags_filter=ccc_flags
4111     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4112         test -d "$sysroot" || die "No valid sysroot specified."
4113         _type=armcc
4114         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4115         armcc_conf="$PWD/armcc.conf"
4116         $_cc --arm_linux_configure                 \
4117              --arm_linux_config_file="$armcc_conf" \
4118              --configure_sysroot="$sysroot"        \
4119              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4120              die "Error creating armcc configuration file."
4121         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4122         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4123         as_default="${cross_prefix}gcc"
4124         _depflags='-MMD'
4125         _cflags_speed='-O3'
4126         _cflags_size='-Os'
4127     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4128         _type=tms470
4129         _ident=$($_cc -version | head -n1 | tr -s ' ')
4130         _flags='--gcc --abi=eabi -me'
4131         _cc_e='-ppl -fe=$@'
4132         _cc_o='-fe=$@'
4133         _depflags='-ppa -ppd=$(@:.o=.d)'
4134         _cflags_speed='-O3 -mf=5'
4135         _cflags_size='-O3 -mf=2'
4136         _flags_filter=tms470_flags
4137     elif $_cc -v 2>&1 | grep -q clang; then
4138         _type=clang
4139         _ident=$($_cc --version 2>/dev/null | head -n1)
4140         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4141         _cflags_speed='-O3'
4142         _cflags_size='-Oz'
4143     elif $_cc -V 2>&1 | grep -q Sun; then
4144         _type=suncc
4145         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4146         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4147         _DEPFLAGS='-xM1 -xc99'
4148         _ldflags='-std=c99'
4149         _cflags_speed='-O5'
4150         _cflags_size='-O5 -xspace'
4151         _flags_filter=suncc_flags
4152     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4153         _type=pathscale
4154         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4155         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4156         _cflags_speed='-O2'
4157         _cflags_size='-Os'
4158         _flags_filter='filter_out -Wdisabled-optimization'
4159     elif $_cc -v 2>&1 | grep -q Open64; then
4160         _type=open64
4161         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4162         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4163         _cflags_speed='-O2'
4164         _cflags_size='-Os'
4165         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4166     elif $_cc -V 2>&1 | grep -q Portland; then
4167         _type=pgi
4168         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4169         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4170         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4171         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4172         _cflags_noopt="-O"
4173         _flags_filter=pgi_flags
4174     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4175         _type=armasm
4176         _ident=$($_cc | head -n1)
4177         # 4509: "This form of conditional instruction is deprecated"
4178         _flags="-nologo -ignore 4509"
4179         _flags_filter=armasm_flags
4180     elif $_cc 2>&1 | grep -q Intel; then
4181         _type=icl
4182         _ident=$($_cc 2>&1 | head -n1)
4183         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4184         # Not only is O3 broken on 13.x+ but it is slower on all previous
4185         # versions (tested) as well.
4186         _cflags_speed="-O2"
4187         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4188         if $_cc 2>&1 | grep -q Linker; then
4189             _ld_o='-out:$@'
4190         else
4191             _ld_o='-Fe$@'
4192         fi
4193         _cc_o='-Fo$@'
4194         _cc_e='-P'
4195         _flags_filter=icl_flags
4196         _ld_lib='lib%.a'
4197         _ld_path='-libpath:'
4198         # -Qdiag-error to make icl error when seeing certain unknown arguments
4199         _flags='-nologo -Qdiag-error:4044,10157'
4200         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4201         # with MSVC which enables it by default.
4202         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4203         disable stripping
4204     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4205         # lld can emulate multiple different linkers; in ms link.exe mode,
4206         # the -? parameter gives the help output which contains an identifyable
4207         # string, while it gives an error in other modes.
4208         _type=lld-link
4209         # The link.exe mode doesn't have a switch for getting the version,
4210         # but we can force it back to gnu mode and get the version from there.
4211         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4212         _ld_o='-out:$@'
4213         _flags_filter=msvc_flags
4214         _ld_lib='lib%.a'
4215         _ld_path='-libpath:'
4216     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4217         _type=msvc
4218         _ident=$($_cc 2>&1 | head -n1)
4219         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4220         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4221         _cflags_speed="-O2"
4222         _cflags_size="-O1"
4223         _cflags_noopt="-O1"
4224         if $_cc -nologo- 2>&1 | grep -q Linker; then
4225             _ld_o='-out:$@'
4226         else
4227             _ld_o='-Fe$@'
4228         fi
4229         _cc_o='-Fo$@'
4230         _cc_e='-P -Fi$@'
4231         _flags_filter=msvc_flags
4232         _ld_lib='lib%.a'
4233         _ld_path='-libpath:'
4234         _flags='-nologo'
4235         disable stripping
4236     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4237         _type=cparser
4238         _ident=$($_cc --version | head -n1)
4239         _depflags='-MMD'
4240         _cflags_speed='-O4'
4241         _cflags_size='-O2'
4242         _flags_filter=cparser_flags
4243     fi
4244
4245     eval ${pfx}_type=\$_type
4246     eval ${pfx}_ident=\$_ident
4247 }
4248
4249 set_ccvars(){
4250     eval ${1}_C=\${_cc_c-\${${1}_C}}
4251     eval ${1}_E=\${_cc_e-\${${1}_E}}
4252     eval ${1}_O=\${_cc_o-\${${1}_O}}
4253
4254     if [ -n "$_depflags" ]; then
4255         eval ${1}_DEPFLAGS=\$_depflags
4256     else
4257         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4258         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4259         eval DEP${1}FLAGS=\$_flags
4260     fi
4261 }
4262
4263 probe_cc cc "$cc" "true"
4264 cflags_filter=$_flags_filter
4265 cflags_speed=$_cflags_speed
4266 cflags_size=$_cflags_size
4267 cflags_noopt=$_cflags_noopt
4268 add_cflags $_flags $_cflags
4269 cc_ldflags=$_ldflags
4270 set_ccvars CC
4271 set_ccvars CXX
4272
4273 probe_cc hostcc "$host_cc"
4274 host_cflags_filter=$_flags_filter
4275 host_cflags_speed=$_cflags_speed
4276 add_host_cflags  $_flags $_cflags
4277 set_ccvars HOSTCC
4278
4279 test -n "$cc_type" && enable $cc_type ||
4280     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4281
4282 : ${as_default:=$cc}
4283 : ${objcc_default:=$cc}
4284 : ${dep_cc_default:=$cc}
4285 : ${ld_default:=$cc}
4286 : ${host_ld_default:=$host_cc}
4287 set_default ar as objcc dep_cc ld ln_s host_ld windres
4288
4289 probe_cc as "$as"
4290 asflags_filter=$_flags_filter
4291 add_asflags $_flags $_cflags
4292 set_ccvars AS
4293
4294 probe_cc objcc "$objcc"
4295 objcflags_filter=$_flags_filter
4296 add_objcflags $_flags $_cflags
4297 set_ccvars OBJC
4298
4299 probe_cc ld "$ld"
4300 ldflags_filter=$_flags_filter
4301 add_ldflags $_flags $_ldflags
4302 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4303 LD_O=${_ld_o-$LD_O}
4304 LD_LIB=${_ld_lib-$LD_LIB}
4305 LD_PATH=${_ld_path-$LD_PATH}
4306
4307 probe_cc hostld "$host_ld"
4308 host_ldflags_filter=$_flags_filter
4309 add_host_ldflags $_flags $_ldflags
4310 HOSTLD_O=${_ld_o-$HOSTLD_O}
4311
4312 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4313     probe_cc depcc "$dep_cc"
4314     CCDEP=${_DEPCMD:-$DEPCMD}
4315     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4316     DEPCCFLAGS=$_flags
4317 fi
4318
4319 if $ar 2>&1 | grep -q Microsoft; then
4320     arflags="-nologo"
4321     ar_o='-out:$@'
4322 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4323     arflags="rq"
4324     ar_o='$@'
4325 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4326     arflags='-Xany -r -c'
4327     ar_o='$@'
4328 elif $ar 2>&1 | grep -q "\[D\] "; then
4329     arflags="rcD"
4330     ar_o='$@'
4331 else
4332     arflags="rc"
4333     ar_o='$@'
4334 fi
4335
4336 add_cflags $extra_cflags
4337 add_cxxflags $extra_cxxflags
4338 add_objcflags $extra_objcflags
4339 add_asflags $extra_cflags
4340
4341 if test -n "$sysroot"; then
4342     case "$cc_type" in
4343         gcc|llvm_gcc|clang)
4344             add_cppflags --sysroot="$sysroot"
4345             add_ldflags --sysroot="$sysroot"
4346 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4347             add_cppflags -isysroot "$sysroot"
4348             add_ldflags -isysroot "$sysroot"
4349         ;;
4350         tms470)
4351             add_cppflags -I"$sysinclude"
4352             add_ldflags  --sysroot="$sysroot"
4353         ;;
4354     esac
4355 fi
4356
4357 if test "$cpu" = host; then
4358     enabled cross_compile &&
4359         die "--cpu=host makes no sense when cross-compiling."
4360
4361     case "$cc_type" in
4362         gcc|llvm_gcc)
4363             check_native(){
4364                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4365                 sed -n "/cc1.*$1=/{
4366                             s/.*$1=\\([^ ]*\\).*/\\1/
4367                             p
4368                             q
4369                         }" $TMPE
4370             }
4371             cpu=$(check_native -march || check_native -mcpu)
4372         ;;
4373         clang)
4374             check_native(){
4375                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4376                 sed -n "/cc1.*-target-cpu /{
4377                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4378                             p
4379                             q
4380                         }" $TMPE
4381             }
4382             cpu=$(check_native -march)
4383         ;;
4384     esac
4385
4386     test "${cpu:-host}" = host &&
4387         die "--cpu=host not supported with compiler $cc"
4388 fi
4389
4390 # Deal with common $arch aliases
4391 case "$arch" in
4392     aarch64|arm64)
4393         arch="aarch64"
4394     ;;
4395     arm*|iPad*|iPhone*)
4396         arch="arm"
4397     ;;
4398     mips*|IP*)
4399         case "$arch" in
4400         *el)
4401             add_cppflags -EL
4402             add_ldflags -EL
4403         ;;
4404         *eb)
4405             add_cppflags -EB
4406             add_ldflags -EB
4407         ;;
4408         esac
4409         arch="mips"
4410     ;;
4411     parisc*|hppa*)
4412         arch="parisc"
4413     ;;
4414     "Power Macintosh"|ppc*|powerpc*)
4415         arch="ppc"
4416     ;;
4417     s390|s390x)
4418         arch="s390"
4419     ;;
4420     sh4|sh)
4421         arch="sh4"
4422     ;;
4423     sun4*|sparc*)
4424         arch="sparc"
4425     ;;
4426     tilegx|tile-gx)
4427         arch="tilegx"
4428     ;;
4429     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4430         arch="x86"
4431     ;;
4432 esac
4433
4434 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4435 enable $arch
4436
4437 # Add processor-specific flags
4438 if enabled aarch64; then
4439
4440     case $cpu in
4441         armv*)
4442             cpuflags="-march=$cpu"
4443         ;;
4444         *)
4445             cpuflags="-mcpu=$cpu"
4446         ;;
4447     esac
4448
4449 elif enabled alpha; then
4450
4451     cpuflags="-mcpu=$cpu"
4452
4453 elif enabled arm; then
4454
4455     check_arm_arch() {
4456         check_cpp_condition stddef.h \
4457             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4458             $cpuflags
4459     }
4460
4461     probe_arm_arch() {
4462         if   check_arm_arch 4;        then echo armv4
4463         elif check_arm_arch 4T;       then echo armv4t
4464         elif check_arm_arch 5;        then echo armv5
4465         elif check_arm_arch 5E;       then echo armv5e
4466         elif check_arm_arch 5T;       then echo armv5t
4467         elif check_arm_arch 5TE;      then echo armv5te
4468         elif check_arm_arch 5TEJ;     then echo armv5te
4469         elif check_arm_arch 6;        then echo armv6
4470         elif check_arm_arch 6J;       then echo armv6j
4471         elif check_arm_arch 6K;       then echo armv6k
4472         elif check_arm_arch 6Z;       then echo armv6z
4473         elif check_arm_arch 6ZK;      then echo armv6zk
4474         elif check_arm_arch 6T2;      then echo armv6t2
4475         elif check_arm_arch 7;        then echo armv7
4476         elif check_arm_arch 7A  7_A;  then echo armv7-a
4477         elif check_arm_arch 7S;       then echo armv7-a
4478         elif check_arm_arch 7R  7_R;  then echo armv7-r
4479         elif check_arm_arch 7M  7_M;  then echo armv7-m
4480         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4481         elif check_arm_arch 8A  8_A;  then echo armv8-a
4482         fi
4483     }
4484
4485     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4486
4487     case $cpu in
4488         armv*)
4489             cpuflags="-march=$cpu"
4490             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4491         ;;
4492         *)
4493             cpuflags="-mcpu=$cpu"
4494             case $cpu in
4495                 cortex-a*)                               subarch=armv7a  ;;
4496                 cortex-r*)                               subarch=armv7r  ;;
4497                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4498                 arm11*)                                  subarch=armv6   ;;
4499                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4500                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4501                 *)                             subarch=$(probe_arm_arch) ;;
4502             esac
4503         ;;
4504     esac
4505
4506     case "$subarch" in
4507         armv5t*)    enable fast_clz                ;;
4508         armv[6-8]*)
4509             enable fast_clz
4510             disabled fast_unaligned || enable fast_unaligned
4511             ;;
4512     esac
4513
4514 elif enabled avr32; then
4515
4516     case $cpu in
4517         ap7[02]0[0-2])
4518             subarch="avr32_ap"
4519             cpuflags="-mpart=$cpu"
4520         ;;
4521         ap)
4522             subarch="avr32_ap"
4523             cpuflags="-march=$cpu"
4524         ;;
4525         uc3[ab]*)
4526             subarch="avr32_uc"
4527             cpuflags="-mcpu=$cpu"
4528         ;;
4529         uc)
4530             subarch="avr32_uc"
4531             cpuflags="-march=$cpu"
4532         ;;
4533     esac
4534
4535 elif enabled bfin; then
4536
4537     cpuflags="-mcpu=$cpu"
4538
4539 elif enabled mips; then
4540
4541     cpuflags="-march=$cpu"
4542
4543     if [ "$cpu" != "generic" ]; then
4544         disable mips32r2
4545         disable mips32r5
4546         disable mips64r2
4547         disable mips32r6
4548         disable mips64r6
4549         disable loongson2
4550         disable loongson3
4551
4552         case $cpu in
4553             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4554                 enable mips32r2
4555                 disable msa
4556             ;;
4557             p5600|i6400|p6600)
4558                 disable mipsdsp
4559                 disable mipsdspr2
4560             ;;
4561             loongson*)
4562                 enable loongson2
4563                 enable loongson3
4564                 enable local_aligned_8 local_aligned_16 local_aligned_32
4565                 enable simd_align_16
4566                 enable fast_64bit
4567                 enable fast_clz
4568                 enable fast_cmov
4569                 enable fast_unaligned
4570                 disable aligned_stack
4571                 disable mipsfpu
4572                 disable mipsdsp
4573                 disable mipsdspr2
4574                 case $cpu in
4575                     loongson3*)
4576                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4577                     ;;
4578                     loongson2e)
4579                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4580                     ;;
4581                     loongson2f)
4582                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4583                     ;;
4584                 esac
4585             ;;
4586             *)
4587                 # Unknown CPU. Disable everything.
4588                 warn "unknown CPU. Disabling all MIPS optimizations."
4589                 disable mipsfpu
4590                 disable mipsdsp
4591                 disable mipsdspr2
4592                 disable msa
4593                 disable mmi
4594             ;;
4595         esac
4596
4597         case $cpu in
4598             24kc)
4599                 disable mipsfpu
4600                 disable mipsdsp
4601                 disable mipsdspr2
4602             ;;
4603             24kf*)
4604                 disable mipsdsp
4605                 disable mipsdspr2
4606             ;;
4607             24kec|34kc|1004kc)
4608                 disable mipsfpu
4609                 disable mipsdspr2
4610             ;;
4611             24kef*|34kf*|1004kf*)
4612                 disable mipsdspr2
4613             ;;
4614             74kc)
4615                 disable mipsfpu
4616             ;;
4617             p5600)
4618                 enable mips32r5
4619                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4620             ;;
4621             i6400)
4622                 enable mips64r6
4623                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4624             ;;
4625             p6600)
4626                 enable mips64r6
4627                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4628             ;;
4629         esac
4630     else
4631         # We do not disable anything. Is up to the user to disable the unwanted features.
4632         warn 'generic cpu selected'
4633     fi
4634
4635 elif enabled ppc; then
4636
4637     disable ldbrx
4638
4639     case $(tolower $cpu) in
4640         601|ppc601|powerpc601)
4641             cpuflags="-mcpu=601"
4642             disable altivec
4643         ;;
4644         603*|ppc603*|powerpc603*)
4645             cpuflags="-mcpu=603"
4646             disable altivec
4647         ;;
4648         604*|ppc604*|powerpc604*)
4649             cpuflags="-mcpu=604"
4650             disable altivec
4651         ;;
4652         g3|75*|ppc75*|powerpc75*)
4653             cpuflags="-mcpu=750"
4654             disable altivec
4655         ;;
4656         g4|745*|ppc745*|powerpc745*)
4657             cpuflags="-mcpu=7450"
4658             disable vsx
4659         ;;
4660         74*|ppc74*|powerpc74*)
4661             cpuflags="-mcpu=7400"
4662             disable vsx
4663         ;;
4664         g5|970|ppc970|powerpc970)
4665             cpuflags="-mcpu=970"
4666             disable vsx
4667         ;;
4668         power[3-6]*)
4669             cpuflags="-mcpu=$cpu"
4670             disable vsx
4671         ;;
4672         power[7-8]*)
4673             cpuflags="-mcpu=$cpu"
4674         ;;
4675         cell)
4676             cpuflags="-mcpu=cell"
4677             enable ldbrx
4678             disable vsx
4679         ;;
4680         e500mc)
4681             cpuflags="-mcpu=e500mc"
4682             disable altivec
4683         ;;
4684         e500v2)
4685             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4686             disable altivec
4687             disable dcbzl
4688         ;;
4689         e500)
4690             cpuflags="-mcpu=8540 -mhard-float"
4691             disable altivec
4692             disable dcbzl
4693         ;;
4694     esac
4695
4696 elif enabled sparc; then
4697
4698     case $cpu in
4699         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4700             cpuflags="-mcpu=$cpu"
4701         ;;
4702         ultrasparc*|niagara[234])
4703             cpuflags="-mcpu=$cpu"
4704         ;;
4705     esac
4706
4707 elif enabled x86; then
4708
4709     case $cpu in
4710         i[345]86|pentium)
4711             cpuflags="-march=$cpu"
4712             disable i686
4713             disable mmx
4714         ;;
4715         # targets that do NOT support nopl and conditional mov (cmov)
4716         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4717             cpuflags="-march=$cpu"
4718             disable i686
4719         ;;
4720         # targets that do support nopl and conditional mov (cmov)
4721         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4722         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4723         |amdfam10|barcelona|b[dt]ver*|znver*)
4724             cpuflags="-march=$cpu"
4725             enable i686
4726             enable fast_cmov
4727         ;;
4728         # targets that do support conditional mov but on which it's slow
4729         pentium4|pentium4m|prescott|nocona)
4730             cpuflags="-march=$cpu"
4731             enable i686
4732             disable fast_cmov
4733         ;;
4734     esac
4735
4736 fi
4737
4738 if [ "$cpu" != generic ]; then
4739     add_cflags  $cpuflags
4740     add_asflags $cpuflags
4741     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4742 fi
4743
4744 # compiler sanity check
4745 check_exec <<EOF
4746 int main(void){ return 0; }
4747 EOF
4748 if test "$?" != 0; then
4749     echo "$cc is unable to create an executable file."
4750     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4751         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4752         echo "Only do this if you know what cross compiling means."
4753     fi
4754     die "C compiler test failed."
4755 fi
4756
4757 add_cppflags -D_ISOC99_SOURCE
4758 add_cxxflags -D__STDC_CONSTANT_MACROS
4759 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4760
4761 # some compilers silently accept -std=c11, so we also need to check that the
4762 # version macro is defined properly
4763 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4764     add_cflags -std=c11
4765 else
4766     check_cflags -std=c99
4767 fi
4768
4769 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4770 #include <stdlib.h>
4771 EOF
4772 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4773 #include <stdlib.h>
4774 EOF
4775
4776 add_host_cppflags -D_ISOC99_SOURCE
4777 check_host_cflags -std=c99
4778 check_host_cflags -Wall
4779 check_host_cflags $host_cflags_speed
4780
4781 check_64bit(){
4782     arch32=$1
4783     arch64=$2
4784     expr=$3
4785     check_code cc "" "int test[2*($expr) - 1]" &&
4786         subarch=$arch64 || subarch=$arch32
4787 }
4788
4789 case "$arch" in
4790     aarch64|alpha|ia64)
4791         spic=$shared
4792     ;;
4793     mips)
4794         check_64bit mips mips64 '_MIPS_SIM > 1'
4795         spic=$shared
4796     ;;
4797     parisc)
4798         check_64bit parisc parisc64 'sizeof(void *) > 4'
4799         spic=$shared
4800     ;;
4801     ppc)
4802         check_64bit ppc ppc64 'sizeof(void *) > 4'
4803         spic=$shared
4804     ;;
4805     s390)
4806         check_64bit s390 s390x 'sizeof(void *) > 4'
4807         spic=$shared
4808     ;;
4809     sparc)
4810         check_64bit sparc sparc64 'sizeof(void *) > 4'
4811         spic=$shared
4812     ;;
4813     x86)
4814         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4815         # Treat x32 as x64 for now. Note it also needs spic=$shared
4816         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4817             subarch=x86_64
4818         if test "$subarch" = "x86_64"; then
4819             spic=$shared
4820         fi
4821     ;;
4822     ppc)
4823         check_cc <<EOF && subarch="ppc64"
4824         int test[(int)sizeof(char*) - 7];
4825 EOF
4826     ;;
4827 esac
4828
4829 enable $subarch
4830 enabled spic && enable_weak pic
4831
4832 enabled x86_64 && objformat=elf64 || objformat="elf32"
4833
4834 # OS specific
4835 case $target_os in
4836     aix)
4837         SHFLAGS=-shared
4838         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4839         enabled shared && add_ldflags -Wl,-brtl
4840         ;;
4841     android)
4842         disable symver
4843         enable section_data_rel_ro
4844         SLIB_INSTALL_NAME='$(SLIBNAME)'
4845         SLIB_INSTALL_LINKS=
4846         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4847         ;;
4848     haiku)
4849         prefix_default="/boot/common"
4850         network_extralibs="-lnetwork"
4851         host_extralibs=
4852         ;;
4853     sunos)
4854         SHFLAGS='-shared -Wl,-h,$$(@F)'
4855         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4856         network_extralibs="-lsocket -lnsl"
4857         add_cppflags -D__EXTENSIONS__
4858         # When using suncc to build, the Solaris linker will mark
4859         # an executable with each instruction set encountered by
4860         # the Solaris assembler.  As our libraries contain their own
4861         # guards for processor-specific code, instead suppress
4862         # generation of the HWCAPS ELF section on Solaris x86 only.
4863         enabled_all suncc x86 &&
4864             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4865             add_ldflags -Wl,-M,mapfile
4866         nm_default='nm -P -g'
4867         version_script='-M'
4868         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4869         ;;
4870     netbsd)
4871         disable symver
4872         oss_indev_extralibs="-lossaudio"
4873         oss_outdev_extralibs="-lossaudio"
4874         enabled gcc || check_ldflags -Wl,-zmuldefs
4875         ;;
4876     openbsd|bitrig)
4877         disable symver
4878         SHFLAGS='-shared'
4879         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4880         SLIB_INSTALL_LINKS=
4881         oss_indev_extralibs="-lossaudio"
4882         oss_outdev_extralibs="-lossaudio"
4883         ;;
4884     dragonfly)
4885         disable symver
4886         ;;
4887     freebsd)
4888         ;;
4889     bsd/os)
4890         add_extralibs -lpoll -lgnugetopt
4891         strip="strip -d"
4892         ;;
4893     darwin)
4894         enabled ppc && add_asflags -force_cpusubtype_ALL
4895         install_name_dir_default='$(SHLIBDIR)'
4896         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4897         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4898         strip="${strip} -x"
4899         add_ldflags -Wl,-dynamic,-search_paths_first
4900         SLIBSUF=".dylib"
4901         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4902         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4903         objformat="macho"
4904         enabled x86_64 && objformat="macho64" || objformat="macho32"
4905         enabled_any pic shared x86_64 ||
4906             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4907         check_header dispatch/dispatch.h &&
4908             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'