build: isolate sdl-to-sdl2 aliasing
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
239   --enable-libopencv       enable video filtering via libopencv [no]
240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
242   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librsvg         enable SVG rasterization via librsvg [no]
246   --enable-librubberband   enable rubberband needed for rubberband filter [no]
247   --enable-librtmp         enable RTMP[E] support via librtmp [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
258   --enable-libvidstab      enable video stabilization using vid.stab [no]
259   --enable-libvmaf         enable vmaf filter via libvmaf [no]
260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
281   --enable-mediacodec      enable Android MediaCodec support [no]
282   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl2           disable sdl2 [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --disable-xlib           disable xlib [autodetect]
294   --disable-zlib           disable zlib [autodetect]
295
296   The following libraries provide various hardware acceleration features:
297   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
298   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
299   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
307   --enable-omx             enable OpenMAX IL code [no]
308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
313
314 Toolchain options:
315   --arch=ARCH              select architecture [$arch]
316   --cpu=CPU                select the minimum required CPU (affects
317                            instruction selection, may crash on older CPUs)
318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
319   --progs-suffix=SUFFIX    program name suffix []
320   --enable-cross-compile   assume a cross-compiler is used
321   --sysroot=PATH           root of cross-build tree
322   --sysinclude=PATH        location of cross-build system headers
323   --target-os=OS           compiler targets OS [$target_os]
324   --target-exec=CMD        command to run executables on target
325   --target-path=DIR        path to view of build directory on target
326   --target-samples=DIR     path to samples directory on target
327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
328   --toolchain=NAME         set tool defaults according to NAME
329   --nm=NM                  use nm tool NM [$nm_default]
330   --ar=AR                  use archive tool AR [$ar_default]
331   --as=AS                  use assembler AS [$as_default]
332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
333   --strip=STRIP            use strip tool STRIP [$strip_default]
334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
335   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
336   --cc=CC                  use C compiler CC [$cc_default]
337   --cxx=CXX                use C compiler CXX [$cxx_default]
338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
340   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
341   --ld=LD                  use linker LD [$ld_default]
342   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
343   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
344   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
345   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
346   --host-cc=HOSTCC         use host C compiler HOSTCC
347   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
348   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
349   --host-ld=HOSTLD         use host linker HOSTLD
350   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
351   --host-libs=HLIBS        use libs HLIBS when linking for host
352   --host-os=OS             compiler host OS [$target_os]
353   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
354   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
355   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
356   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
357   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
358   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
359   --extra-libs=ELIBS       add ELIBS [$ELIBS]
360   --extra-version=STRING   version string suffix []
361   --optflags=OPTFLAGS      override optimization-related compiler flags
362   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
363   --build-suffix=SUFFIX    library name suffix []
364   --enable-pic             build position-independent code
365   --enable-thumb           compile for Thumb instruction set
366   --enable-lto             use link-time optimization
367   --env="ENV=override"     override the environment variables
368
369 Advanced options (experts only):
370   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
371   --custom-allocator=NAME  use a supported custom allocator
372   --disable-symver         disable symbol versioning
373   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
374   --disable-safe-bitstream-reader
375                            disable buffer boundary checking in bitreaders
376                            (faster, but may crash)
377   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
378
379 Optimization options (experts only):
380   --disable-asm            disable all assembly optimizations
381   --disable-altivec        disable AltiVec optimizations
382   --disable-vsx            disable VSX optimizations
383   --disable-power8         disable POWER8 optimizations
384   --disable-amd3dnow       disable 3DNow! optimizations
385   --disable-amd3dnowext    disable 3DNow! extended optimizations
386   --disable-mmx            disable MMX optimizations
387   --disable-mmxext         disable MMXEXT optimizations
388   --disable-sse            disable SSE optimizations
389   --disable-sse2           disable SSE2 optimizations
390   --disable-sse3           disable SSE3 optimizations
391   --disable-ssse3          disable SSSE3 optimizations
392   --disable-sse4           disable SSE4 optimizations
393   --disable-sse42          disable SSE4.2 optimizations
394   --disable-avx            disable AVX optimizations
395   --disable-xop            disable XOP optimizations
396   --disable-fma3           disable FMA3 optimizations
397   --disable-fma4           disable FMA4 optimizations
398   --disable-avx2           disable AVX2 optimizations
399   --disable-aesni          disable AESNI optimizations
400   --disable-armv5te        disable armv5te optimizations
401   --disable-armv6          disable armv6 optimizations
402   --disable-armv6t2        disable armv6t2 optimizations
403   --disable-vfp            disable VFP optimizations
404   --disable-neon           disable NEON optimizations
405   --disable-inline-asm     disable use of inline assembly
406   --disable-x86asm         disable use of standalone x86 assembly
407   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
408   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
409   --disable-msa            disable MSA optimizations
410   --disable-mipsfpu        disable floating point MIPS optimizations
411   --disable-mmi            disable Loongson SIMD optimizations
412   --disable-fast-unaligned consider unaligned accesses slow
413
414 Developer options (useful when working on FFmpeg itself):
415   --disable-debug          disable debugging symbols
416   --enable-debug=LEVEL     set the debug level [$debuglevel]
417   --disable-optimizations  disable compiler optimizations
418   --enable-extra-warnings  enable more compiler warnings
419   --disable-stripping      disable stripping of executables and shared libraries
420   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
421                            2 causes a slowdown at runtime.
422   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
423   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
424                            leaks and errors, using the specified valgrind binary.
425                            Cannot be combined with --target-exec
426   --enable-ftrapv          Trap arithmetic overflows
427   --samples=PATH           location of test samples for FATE, if not set use
428                            \$FATE_SAMPLES at make invocation time.
429   --enable-neon-clobber-test check NEON registers for clobbering (should be
430                            used only for debugging purposes)
431   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
432                            should be used only for debugging purposes)
433   --enable-random          randomly enable/disable components
434   --disable-random
435   --enable-random=LIST     randomly enable/disable specific components or
436   --disable-random=LIST    component groups. LIST is a comma-separated list
437                            of NAME[:PROB] entries where NAME is a component
438                            (group) and PROB the probability associated with
439                            NAME (default 0.5).
440   --random-seed=VALUE      seed value for --enable/disable-random
441   --disable-valgrind-backtrace do not print a backtrace under Valgrind
442                            (only applies to --disable-optimizations builds)
443   --enable-osfuzz          Enable building fuzzer tool
444   --libfuzzer=PATH         path to libfuzzer
445   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
446                            in the name) of tests whose result is ignored
447
448 NOTE: Object files are built at the place where configure is launched.
449 EOF
450   exit 0
451 }
452
453 quotes='""'
454 if test -t 1 && which tput >/dev/null 2>&1; then
455     ncolors=$(tput colors)
456     if test -n "$ncolors" && test $ncolors -ge 8; then
457         bold_color=$(tput bold)
458         warn_color=$(tput setaf 3)
459         error_color=$(tput setaf 1)
460         reset_color=$(tput sgr0)
461     fi
462     # 72 used instead of 80 since that's the default of pr
463     ncols=$(tput cols)
464 fi
465 : ${ncols:=72}
466
467 log(){
468     echo "$@" >> $logfile
469 }
470
471 log_file(){
472     log BEGIN $1
473     pr -n -t $1 >> $logfile
474     log END $1
475 }
476
477 warn(){
478     log "WARNING: $*"
479     WARNINGS="${WARNINGS}WARNING: $*\n"
480 }
481
482 die(){
483     log "$@"
484     echo "$error_color$bold_color$@$reset_color"
485     cat <<EOF
486
487 If you think configure made a mistake, make sure you are using the latest
488 version from Git.  If the latest version fails, report the problem to the
489 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
490 EOF
491     if disabled logging; then
492         cat <<EOF
493 Rerun configure with logging enabled (do not use --disable-logging), and
494 include the log this produces with your report.
495 EOF
496     else
497         cat <<EOF
498 Include the log file "$logfile" produced by configure as this will help
499 solve the problem.
500 EOF
501     fi
502     exit 1
503 }
504
505 # Avoid locale weirdness, besides we really just want to translate ASCII.
506 toupper(){
507     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
508 }
509
510 tolower(){
511     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
512 }
513
514 c_escape(){
515     echo "$*" | sed 's/["\\]/\\\0/g'
516 }
517
518 sh_quote(){
519     v=$(echo "$1" | sed "s/'/'\\\\''/g")
520     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
521     echo "$v"
522 }
523
524 cleanws(){
525     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
526 }
527
528 filter(){
529     pat=$1
530     shift
531     for v; do
532         eval "case $v in $pat) printf '%s ' $v ;; esac"
533     done
534 }
535
536 filter_out(){
537     pat=$1
538     shift
539     for v; do
540         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
541     done
542 }
543
544 map(){
545     m=$1
546     shift
547     for v; do eval $m; done
548 }
549
550 add_suffix(){
551     suffix=$1
552     shift
553     for v; do echo ${v}${suffix}; done
554 }
555
556 set_all(){
557     value=$1
558     shift
559     for var in $*; do
560         eval $var=$value
561     done
562 }
563
564 set_weak(){
565     value=$1
566     shift
567     for var; do
568         eval : \${$var:=$value}
569     done
570 }
571
572 sanitize_var_name(){
573     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
574 }
575
576 set_safe(){
577     var=$1
578     shift
579     eval $(sanitize_var_name "$var")='$*'
580 }
581
582 get_safe(){
583     eval echo \$$(sanitize_var_name "$1")
584 }
585
586 pushvar(){
587     for pvar in $*; do
588         eval level=\${${pvar}_level:=0}
589         eval ${pvar}_${level}="\$$pvar"
590         eval ${pvar}_level=$(($level+1))
591     done
592 }
593
594 popvar(){
595     for pvar in $*; do
596         eval level=\${${pvar}_level:-0}
597         test $level = 0 && continue
598         eval level=$(($level-1))
599         eval $pvar="\${${pvar}_${level}}"
600         eval ${pvar}_level=$level
601         eval unset ${pvar}_${level}
602     done
603 }
604
605 request(){
606     for var in $*; do
607         eval ${var}_requested=yes
608         eval $var=
609     done
610 }
611
612 enable(){
613     set_all yes $*
614 }
615
616 disable(){
617     set_all no $*
618 }
619
620 enable_weak(){
621     set_weak yes $*
622 }
623
624 disable_weak(){
625     set_weak no $*
626 }
627
628 enable_safe(){
629     for var; do
630         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
631     done
632 }
633
634 disable_safe(){
635     for var; do
636         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
637     done
638 }
639
640 do_enable_deep(){
641     for var; do
642         enabled $var && continue
643         eval sel="\$${var}_select"
644         eval sgs="\$${var}_suggest"
645         pushvar var sgs
646         enable_deep $sel
647         popvar sgs
648         enable_deep_weak $sgs
649         popvar var
650     done
651 }
652
653 enable_deep(){
654     do_enable_deep $*
655     enable $*
656 }
657
658 enable_deep_weak(){
659     for var; do
660         disabled $var && continue
661         pushvar var
662         do_enable_deep $var
663         popvar var
664         enable_weak $var
665     done
666 }
667
668 requested(){
669     test "${1#!}" = "$1" && op='=' || op=!=
670     eval test "x\$${1#!}_requested" $op "xyes"
671 }
672
673 enabled(){
674     test "${1#!}" = "$1" && op='=' || op=!=
675     eval test "x\$${1#!}" $op "xyes"
676 }
677
678 disabled(){
679     test "${1#!}" = "$1" && op='=' || op=!=
680     eval test "x\$${1#!}" $op "xno"
681 }
682
683 enabled_all(){
684     for opt; do
685         enabled $opt || return 1
686     done
687 }
688
689 disabled_all(){
690     for opt; do
691         disabled $opt || return 1
692     done
693 }
694
695 enabled_any(){
696     for opt; do
697         enabled $opt && return 0
698     done
699 }
700
701 disabled_any(){
702     for opt; do
703         disabled $opt && return 0
704     done
705     return 1
706 }
707
708 set_default(){
709     for opt; do
710         eval : \${$opt:=\$${opt}_default}
711     done
712 }
713
714 is_in(){
715     value=$1
716     shift
717     for var in $*; do
718         [ $var = $value ] && return 0
719     done
720     return 1
721 }
722
723 do_check_deps(){
724     for cfg; do
725         cfg="${cfg#!}"
726         enabled ${cfg}_checking && die "Circular dependency for $cfg."
727         disabled ${cfg}_checking && continue
728         enable ${cfg}_checking
729         append allopts $cfg
730
731         eval dep_all="\$${cfg}_deps"
732         eval dep_any="\$${cfg}_deps_any"
733         eval dep_sel="\$${cfg}_select"
734         eval dep_sgs="\$${cfg}_suggest"
735         eval dep_ifa="\$${cfg}_if"
736         eval dep_ifn="\$${cfg}_if_any"
737
738         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
739         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
740         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
741
742         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
743         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
744         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
745         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
746         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
747
748         if enabled $cfg; then
749             enable_deep $dep_sel
750             enable_deep_weak $dep_sgs
751         fi
752
753         disable ${cfg}_checking
754     done
755 }
756
757 check_deps(){
758     unset allopts
759
760     do_check_deps "$@"
761
762     for cfg in $allopts; do
763         enabled $cfg || continue
764         eval dep_extralibs="\$${cfg}_extralibs"
765         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
766     done
767 }
768
769 print_config(){
770     pfx=$1
771     files=$2
772     shift 2
773     map 'eval echo "$v \${$v:-no}"' "$@" |
774     awk "BEGIN { split(\"$files\", files) }
775         {
776             c = \"$pfx\" toupper(\$1);
777             v = \$2;
778             sub(/yes/, 1, v);
779             sub(/no/,  0, v);
780             for (f in files) {
781                 file = files[f];
782                 if (file ~ /\\.h\$/) {
783                     printf(\"#define %s %d\\n\", c, v) >>file;
784                 } else if (file ~ /\\.asm\$/) {
785                     printf(\"%%define %s %d\\n\", c, v) >>file;
786                 } else if (file ~ /\\.mak\$/) {
787                     n = -v ? \"\" : \"!\";
788                     printf(\"%s%s=yes\\n\", n, c) >>file;
789                 } else if (file ~ /\\.texi\$/) {
790                     pre = -v ? \"\" : \"@c \";
791                     yesno = \$2;
792                     c2 = tolower(c);
793                     gsub(/_/, \"-\", c2);
794                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
795                 }
796             }
797         }"
798 }
799
800 print_enabled(){
801     suf=$1
802     shift
803     for v; do
804         enabled $v && printf "%s\n" ${v%$suf}
805     done
806 }
807
808 append(){
809     var=$1
810     shift
811     eval "$var=\"\$$var $*\""
812 }
813
814 prepend(){
815     var=$1
816     shift
817     eval "$var=\"$* \$$var\""
818 }
819
820 unique(){
821     var=$1
822     uniq_list=""
823     for tok in $(eval echo \$$var); do
824         uniq_list="$(filter_out $tok $uniq_list) $tok"
825     done
826     eval "$var=\"${uniq_list}\""
827 }
828
829 add_cppflags(){
830     append CPPFLAGS "$@"
831 }
832
833 add_cflags(){
834     append CFLAGS $($cflags_filter "$@")
835 }
836
837 add_cflags_headers(){
838     append CFLAGS_HEADERS $($cflags_filter "$@")
839 }
840
841 add_cxxflags(){
842     append CXXFLAGS $($cflags_filter "$@")
843 }
844
845 add_asflags(){
846     append ASFLAGS $($asflags_filter "$@")
847 }
848
849 add_objcflags(){
850     append OBJCFLAGS $($objcflags_filter "$@")
851 }
852
853 add_ldflags(){
854     append LDFLAGS $($ldflags_filter "$@")
855 }
856
857 add_ldexeflags(){
858     append LDEXEFLAGS $($ldflags_filter "$@")
859 }
860
861 add_ldlibflags(){
862     append LDLIBFLAGS $($ldflags_filter "$@")
863 }
864
865 add_stripflags(){
866     append ASMSTRIPFLAGS "$@"
867 }
868
869 add_extralibs(){
870     prepend extralibs $($ldflags_filter "$@")
871 }
872
873 add_host_cppflags(){
874     append host_cppflags "$@"
875 }
876
877 add_host_cflags(){
878     append host_cflags $($host_cflags_filter "$@")
879 }
880
881 add_host_ldflags(){
882     append host_ldflags $($host_ldflags_filter "$@")
883 }
884
885 add_compat(){
886     append compat_objs $1
887     shift
888     map 'add_cppflags -D$v' "$@"
889 }
890
891 check_cmd(){
892     log "$@"
893     "$@" >> $logfile 2>&1
894 }
895
896 check_stat(){
897     log check_stat "$@"
898     stat "$1" >> $logfile 2>&1
899 }
900
901 cc_o(){
902     eval printf '%s\\n' $CC_O
903 }
904
905 cc_e(){
906     eval printf '%s\\n' $CC_E
907 }
908
909 check_cc(){
910     log check_cc "$@"
911     cat > $TMPC
912     log_file $TMPC
913     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
914 }
915
916 check_cxx(){
917     log check_cxx "$@"
918     cat > $TMPCPP
919     log_file $TMPCPP
920     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
921 }
922
923 check_objcc(){
924     log check_objcc "$@"
925     cat > $TMPM
926     log_file $TMPM
927     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
928 }
929
930 check_cpp(){
931     log check_cpp "$@"
932     cat > $TMPC
933     log_file $TMPC
934     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
935 }
936
937 as_o(){
938     eval printf '%s\\n' $AS_O
939 }
940
941 check_as(){
942     log check_as "$@"
943     cat > $TMPS
944     log_file $TMPS
945     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
946 }
947
948 check_inline_asm(){
949     log check_inline_asm "$@"
950     name="$1"
951     code="$2"
952     shift 2
953     disable $name
954     check_cc "$@" <<EOF && enable $name
955 void foo(void){ __asm__ volatile($code); }
956 EOF
957 }
958
959 check_inline_asm_flags(){
960     log check_inline_asm_flags "$@"
961     name="$1"
962     code="$2"
963     flags=''
964     shift 2
965     while [ "$1" != "" ]; do
966       append flags $1
967       shift
968     done;
969     disable $name
970     cat > $TMPC <<EOF
971 void foo(void){ __asm__ volatile($code); }
972 EOF
973     log_file $TMPC
974     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
975     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
976 }
977
978 check_insn(){
979     log check_insn "$@"
980     check_inline_asm ${1}_inline "\"$2\""
981     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
982 }
983
984 check_x86asm(){
985     log check_x86asm "$@"
986     echo "$1" > $TMPS
987     log_file $TMPS
988     shift 1
989     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
990 }
991
992 ld_o(){
993     eval printf '%s\\n' $LD_O
994 }
995
996 check_ld(){
997     log check_ld "$@"
998     type=$1
999     shift 1
1000     flags=$(filter_out '-l*|*.so' $@)
1001     libs=$(filter '-l*|*.so' $@)
1002     check_$type $($cflags_filter $flags) || return
1003     flags=$($ldflags_filter $flags)
1004     libs=$($ldflags_filter $libs)
1005     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1006 }
1007
1008 print_include(){
1009     hdr=$1
1010     test "${hdr%.h}" = "${hdr}" &&
1011         echo "#include $hdr"    ||
1012         echo "#include <$hdr>"
1013 }
1014
1015 check_code(){
1016     log check_code "$@"
1017     check=$1
1018     headers=$2
1019     code=$3
1020     shift 3
1021     {
1022         for hdr in $headers; do
1023             print_include $hdr
1024         done
1025         echo "int main(void) { $code; return 0; }"
1026     } | check_$check "$@"
1027 }
1028
1029 check_cppflags(){
1030     log check_cppflags "$@"
1031     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1032 int x;
1033 EOF
1034 }
1035
1036 test_cflags(){
1037     log test_cflags "$@"
1038     set -- $($cflags_filter "$@")
1039     check_cc "$@" <<EOF
1040 int x;
1041 EOF
1042 }
1043
1044 check_cflags(){
1045     log check_cflags "$@"
1046     test_cflags "$@" && add_cflags "$@"
1047 }
1048
1049 check_cxxflags(){
1050     log check_cxxflags "$@"
1051     set -- $($cflags_filter "$@")
1052     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1053 int x;
1054 EOF
1055 }
1056
1057 test_objcflags(){
1058     log test_objcflags "$@"
1059     set -- $($objcflags_filter "$@")
1060     check_objcc "$@" <<EOF
1061 int x;
1062 EOF
1063 }
1064
1065 check_objcflags(){
1066     log check_objcflags "$@"
1067     test_objcflags "$@" && add_objcflags "$@"
1068 }
1069
1070 test_ldflags(){
1071     log test_ldflags "$@"
1072     check_ld "cc" "$@" <<EOF
1073 int main(void){ return 0; }
1074 EOF
1075 }
1076
1077 check_ldflags(){
1078     log check_ldflags "$@"
1079     test_ldflags "$@" && add_ldflags "$@"
1080 }
1081
1082 test_stripflags(){
1083     log test_stripflags "$@"
1084     # call check_cc to get a fresh TMPO
1085     check_cc <<EOF
1086 int main(void) { return 0; }
1087 EOF
1088     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1089 }
1090
1091 check_stripflags(){
1092     log check_stripflags "$@"
1093     test_stripflags "$@" && add_stripflags "$@"
1094 }
1095
1096 check_header(){
1097     log check_header "$@"
1098     header=$1
1099     shift
1100     disable_safe $header
1101     check_cpp "$@" <<EOF && enable_safe $header
1102 #include <$header>
1103 int x;
1104 EOF
1105 }
1106
1107 check_header_objcc(){
1108     log check_header_objcc "$@"
1109     rm -f -- "$TMPO"
1110     header=$1
1111     shift
1112     disable_safe $header
1113     {
1114        echo "#include <$header>"
1115        echo "int main(void) { return 0; }"
1116     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1117 }
1118
1119 check_func(){
1120     log check_func "$@"
1121     func=$1
1122     shift
1123     disable $func
1124     check_ld "cc" "$@" <<EOF && enable $func
1125 extern int $func();
1126 int main(void){ $func(); }
1127 EOF
1128 }
1129
1130 check_complexfunc(){
1131     log check_complexfunc "$@"
1132     func=$1
1133     narg=$2
1134     shift 2
1135     test $narg = 2 && args="f, g" || args="f * I"
1136     disable $func
1137     check_ld "cc" "$@" <<EOF && enable $func
1138 #include <complex.h>
1139 #include <math.h>
1140 float foo(complex float f, complex float g) { return $func($args); }
1141 int main(void){ return (int) foo; }
1142 EOF
1143 }
1144
1145 check_mathfunc(){
1146     log check_mathfunc "$@"
1147     func=$1
1148     narg=$2
1149     shift 2
1150     test $narg = 2 && args="f, g" || args="f"
1151     disable $func
1152     check_ld "cc" "$@" <<EOF && enable $func
1153 #include <math.h>
1154 float foo(float f, float g) { return $func($args); }
1155 int main(void){ return (int) foo; }
1156 EOF
1157 }
1158
1159 check_func_headers(){
1160     log check_func_headers "$@"
1161     headers=$1
1162     funcs=$2
1163     shift 2
1164     {
1165         for hdr in $headers; do
1166             print_include $hdr
1167         done
1168         echo "#include <stdint.h>"
1169         for func in $funcs; do
1170             echo "long check_$func(void) { return (long) $func; }"
1171         done
1172         echo "int main(void) { int ret = 0;"
1173         # LTO could optimize out the test functions without this
1174         for func in $funcs; do
1175             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1176         done
1177         echo "return ret; }"
1178     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1179 }
1180
1181 check_class_headers_cpp(){
1182     log check_class_headers_cpp "$@"
1183     headers=$1
1184     classes=$2
1185     shift 2
1186     {
1187         for hdr in $headers; do
1188             echo "#include <$hdr>"
1189         done
1190         echo "int main(void) { "
1191         i=1
1192         for class in $classes; do
1193             echo "$class obj$i;"
1194             i=$(expr $i + 1)
1195         done
1196         echo "return 0; }"
1197     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1198 }
1199
1200 check_cpp_condition(){
1201     log check_cpp_condition "$@"
1202     header=$1
1203     condition=$2
1204     shift 2
1205     check_cpp "$@" <<EOF
1206 #include <$header>
1207 #if !($condition)
1208 #error "unsatisfied condition: $condition"
1209 #endif
1210 EOF
1211 }
1212
1213 test_cflags_cc(){
1214     log test_cflags_cc "$@"
1215     flags=$1
1216     header=$2
1217     condition=$3
1218     shift 3
1219     set -- $($cflags_filter "$flags")
1220     check_cc "$@" <<EOF
1221 #include <$header>
1222 #if !($condition)
1223 #error "unsatisfied condition: $condition"
1224 #endif
1225 EOF
1226 }
1227
1228 check_lib(){
1229     log check_lib "$@"
1230     name="$1"
1231     headers="$2"
1232     funcs="$3"
1233     shift 3
1234     disable $name
1235     check_func_headers "$headers" "$funcs" "$@" &&
1236         enable $name && add_extralibs "$@"
1237 }
1238
1239 check_lib_cpp(){
1240     log check_lib_cpp "$@"
1241     headers="$1"
1242     classes="$2"
1243     shift 2
1244     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1245 }
1246
1247 check_pkg_config(){
1248     log check_pkg_config "$@"
1249     pkg_version="$1"
1250     pkg="${1%% *}"
1251     headers="$2"
1252     funcs="$3"
1253     shift 3
1254     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1255     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1256     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1257     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1258         set_safe "${pkg}_cflags"    $pkg_cflags &&
1259         set_safe "${pkg}_extralibs" $pkg_libs
1260 }
1261
1262 check_exec(){
1263     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1264 }
1265
1266 check_exec_crash(){
1267     log check_exec_crash "$@"
1268     code=$(cat)
1269
1270     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1271     # are safe but may not be available everywhere.  Thus we use
1272     # raise(SIGTERM) instead.  The check is run in a subshell so we
1273     # can redirect the "Terminated" message from the shell.  SIGBUS
1274     # is not defined by standard C so it is used conditionally.
1275
1276     (check_exec "$@") >> $logfile 2>&1 <<EOF
1277 #include <signal.h>
1278 static void sighandler(int sig){
1279     raise(SIGTERM);
1280 }
1281 int foo(void){
1282     $code
1283 }
1284 int (*func_ptr)(void) = foo;
1285 int main(void){
1286     signal(SIGILL, sighandler);
1287     signal(SIGFPE, sighandler);
1288     signal(SIGSEGV, sighandler);
1289 #ifdef SIGBUS
1290     signal(SIGBUS, sighandler);
1291 #endif
1292     return func_ptr();
1293 }
1294 EOF
1295 }
1296
1297 check_type(){
1298     log check_type "$@"
1299     headers=$1
1300     type=$2
1301     shift 2
1302     disable_safe "$type"
1303     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1304 }
1305
1306 check_struct(){
1307     log check_struct "$@"
1308     headers=$1
1309     struct=$2
1310     member=$3
1311     shift 3
1312     disable_safe "${struct}_${member}"
1313     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1314         enable_safe "${struct}_${member}"
1315 }
1316
1317 check_builtin(){
1318     log check_builtin "$@"
1319     name=$1
1320     headers=$2
1321     builtin=$3
1322     shift 3
1323     disable "$name"
1324     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1325 }
1326
1327 check_compile_assert(){
1328     log check_compile_assert "$@"
1329     name=$1
1330     headers=$2
1331     condition=$3
1332     shift 3
1333     disable "$name"
1334     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1335 }
1336
1337 require(){
1338     log require "$@"
1339     name_version="$1"
1340     name="${1%% *}"
1341     headers="$2"
1342     func="$3"
1343     shift 3
1344     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1345 }
1346
1347 require_cpp(){
1348     name="$1"
1349     headers="$2"
1350     classes="$3"
1351     shift 3
1352     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1353 }
1354
1355 use_pkg_config(){
1356     log use_pkg_config "$@"
1357     pkg="$1"
1358     check_pkg_config "$@" || return 1
1359     add_cflags    $(get_safe "${pkg}_cflags")
1360     add_extralibs $(get_safe "${pkg}_extralibs")
1361 }
1362
1363 require_pkg_config(){
1364     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1365 }
1366
1367 hostcc_e(){
1368     eval printf '%s\\n' $HOSTCC_E
1369 }
1370
1371 hostcc_o(){
1372     eval printf '%s\\n' $HOSTCC_O
1373 }
1374
1375 check_host_cc(){
1376     log check_host_cc "$@"
1377     cat > $TMPC
1378     log_file $TMPC
1379     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1380 }
1381
1382 check_host_cpp(){
1383     log check_host_cpp "$@"
1384     cat > $TMPC
1385     log_file $TMPC
1386     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1387 }
1388
1389 check_host_cppflags(){
1390     log check_host_cppflags "$@"
1391     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1392 int x;
1393 EOF
1394 }
1395
1396 check_host_cflags(){
1397     log check_host_cflags "$@"
1398     set -- $($host_cflags_filter "$@")
1399     check_host_cc "$@" <<EOF && append host_cflags "$@"
1400 int x;
1401 EOF
1402 }
1403
1404 check_host_cpp_condition(){
1405     log check_host_cpp_condition "$@"
1406     header=$1
1407     condition=$2
1408     shift 2
1409     check_host_cpp "$@" <<EOF
1410 #include <$header>
1411 #if !($condition)
1412 #error "unsatisfied condition: $condition"
1413 #endif
1414 EOF
1415 }
1416
1417 cp_if_changed(){
1418     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1419     mkdir -p "$(dirname $2)"
1420     cp -f "$1" "$2"
1421 }
1422
1423 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1424 # system-dependent things.
1425
1426 AVCODEC_COMPONENTS="
1427     bsfs
1428     decoders
1429     encoders
1430     hwaccels
1431     parsers
1432 "
1433
1434 AVDEVICE_COMPONENTS="
1435     indevs
1436     outdevs
1437 "
1438 AVFILTER_COMPONENTS="
1439     filters
1440 "
1441 AVFORMAT_COMPONENTS="
1442     demuxers
1443     muxers
1444     protocols
1445 "
1446
1447 AVRESAMPLE_COMPONENTS=""
1448 AVUTIL_COMPONENTS=""
1449
1450 COMPONENT_LIST="
1451     $AVCODEC_COMPONENTS
1452     $AVDEVICE_COMPONENTS
1453     $AVFILTER_COMPONENTS
1454     $AVFORMAT_COMPONENTS
1455     $AVRESAMPLE_COMPONENTS
1456     $AVUTIL_COMPONENTS
1457 "
1458
1459 EXAMPLE_LIST="
1460     avio_dir_cmd_example
1461     avio_reading_example
1462     decode_audio_example
1463     decode_video_example
1464     demuxing_decoding_example
1465     encode_audio_example
1466     encode_video_example
1467     extract_mvs_example
1468     filter_audio_example
1469     filtering_audio_example
1470     filtering_video_example
1471     http_multiclient_example
1472     hw_decode_example
1473     metadata_example
1474     muxing_example
1475     qsvdec_example
1476     remuxing_example
1477     resampling_audio_example
1478     scaling_video_example
1479     transcode_aac_example
1480     transcoding_example
1481 "
1482 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1483     bzlib
1484     iconv
1485     libxcb
1486     libxcb_shm
1487     libxcb_shape
1488     libxcb_xfixes
1489     lzma
1490     schannel
1491     sdl2
1492     securetransport
1493     xlib
1494     zlib
1495 "
1496
1497 EXTERNAL_LIBRARY_GPL_LIST="
1498     avisynth
1499     frei0r
1500     libcdio
1501     librubberband
1502     libvidstab
1503     libx264
1504     libx265
1505     libxavs
1506     libxvid
1507 "
1508
1509 EXTERNAL_LIBRARY_NONFREE_LIST="
1510     decklink
1511     libndi_newtek
1512     libfdk_aac
1513     openssl
1514 "
1515
1516 EXTERNAL_LIBRARY_VERSION3_LIST="
1517     gmp
1518     libopencore_amrnb
1519     libopencore_amrwb
1520     libvo_amrwbenc
1521 "
1522
1523 EXTERNAL_LIBRARY_GPLV3_LIST="
1524     libsmbclient
1525 "
1526
1527 EXTERNAL_LIBRARY_LIST="
1528     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1529     $EXTERNAL_LIBRARY_GPL_LIST
1530     $EXTERNAL_LIBRARY_NONFREE_LIST
1531     $EXTERNAL_LIBRARY_VERSION3_LIST
1532     $EXTERNAL_LIBRARY_GPLV3_LIST
1533     chromaprint
1534     gcrypt
1535     gnutls
1536     jni
1537     ladspa
1538     libass
1539     libbluray
1540     libbs2b
1541     libcaca
1542     libcelt
1543     libdc1394
1544     libflite
1545     libfontconfig
1546     libfreetype
1547     libfribidi
1548     libgme
1549     libgsm
1550     libiec61883
1551     libilbc
1552     libkvazaar
1553     libmodplug
1554     libmp3lame
1555     libmysofa
1556     libopencv
1557     libopenh264
1558     libopenjpeg
1559     libopenmpt
1560     libopus
1561     libpulse
1562     librsvg
1563     librtmp
1564     libshine
1565     libsmbclient
1566     libsnappy
1567     libsoxr
1568     libspeex
1569     libssh
1570     libtesseract
1571     libtheora
1572     libtwolame
1573     libv4l2
1574     libvmaf
1575     libvorbis
1576     libvpx
1577     libwavpack
1578     libwebp
1579     libzimg
1580     libzmq
1581     libzvbi
1582     mediacodec
1583     openal
1584     opencl
1585     opengl
1586     videotoolbox
1587 "
1588 HWACCEL_AUTODETECT_LIBRARY_LIST="
1589     audiotoolbox
1590     crystalhd
1591     cuda
1592     cuvid
1593     d3d11va
1594     dxva2
1595     nvenc
1596     vaapi
1597     vda
1598     vdpau
1599     videotoolbox_hwaccel
1600     xvmc
1601 "
1602
1603 HWACCEL_LIBRARY_NONFREE_LIST="
1604     cuda_sdk
1605     libnpp
1606 "
1607
1608 HWACCEL_LIBRARY_LIST="
1609     $HWACCEL_AUTODETECT_LIBRARY_LIST
1610     $HWACCEL_LIBRARY_NONFREE_LIST
1611     libmfx
1612     mmal
1613     omx
1614 "
1615
1616 DOCUMENT_LIST="
1617     doc
1618     htmlpages
1619     manpages
1620     podpages
1621     txtpages
1622 "
1623
1624 FEATURE_LIST="
1625     ftrapv
1626     gray
1627     hardcoded_tables
1628     omx_rpi
1629     runtime_cpudetect
1630     safe_bitstream_reader
1631     shared
1632     small
1633     static
1634     swscale_alpha
1635 "
1636
1637 LIBRARY_LIST="
1638     avcodec
1639     avdevice
1640     avfilter
1641     avformat
1642     avresample
1643     avutil
1644     postproc
1645     swresample
1646     swscale
1647 "
1648
1649 LICENSE_LIST="
1650     gpl
1651     nonfree
1652     version3
1653 "
1654
1655 PROGRAM_LIST="
1656     ffplay
1657     ffprobe
1658     ffserver
1659     ffmpeg
1660 "
1661
1662 SUBSYSTEM_LIST="
1663     dct
1664     dwt
1665     error_resilience
1666     faan
1667     fast_unaligned
1668     fft
1669     lsp
1670     lzo
1671     mdct
1672     pixelutils
1673     network
1674     rdft
1675 "
1676
1677 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1678 CONFIG_LIST="
1679     $DOCUMENT_LIST
1680     $EXAMPLE_LIST
1681     $EXTERNAL_LIBRARY_LIST
1682     $HWACCEL_LIBRARY_LIST
1683     $FEATURE_LIST
1684     $LICENSE_LIST
1685     $LIBRARY_LIST
1686     $PROGRAM_LIST
1687     $SUBSYSTEM_LIST
1688     fontconfig
1689     memory_poisoning
1690     neon_clobber_test
1691     ossfuzz
1692     pic
1693     thumb
1694     valgrind_backtrace
1695     xmm_clobber_test
1696     $COMPONENT_LIST
1697 "
1698
1699 THREADS_LIST="
1700     pthreads
1701     os2threads
1702     w32threads
1703 "
1704
1705 ATOMICS_LIST="
1706     atomics_gcc
1707     atomics_suncc
1708     atomics_win32
1709 "
1710
1711 AUTODETECT_LIBS="
1712     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1713     $HWACCEL_AUTODETECT_LIBRARY_LIST
1714     $THREADS_LIST
1715 "
1716
1717 ARCH_LIST="
1718     aarch64
1719     alpha
1720     arm
1721     avr32
1722     avr32_ap
1723     avr32_uc
1724     bfin
1725     ia64
1726     m68k
1727     mips
1728     mips64
1729     parisc
1730     ppc
1731     ppc64
1732     s390
1733     sh4
1734     sparc
1735     sparc64
1736     tilegx
1737     tilepro
1738     tomi
1739     x86
1740     x86_32
1741     x86_64
1742 "
1743
1744 ARCH_EXT_LIST_ARM="
1745     armv5te
1746     armv6
1747     armv6t2
1748     armv8
1749     neon
1750     vfp
1751     vfpv3
1752     setend
1753 "
1754
1755 ARCH_EXT_LIST_MIPS="
1756     mipsfpu
1757     mips32r2
1758     mips32r5
1759     mips64r2
1760     mips32r6
1761     mips64r6
1762     mipsdsp
1763     mipsdspr2
1764     msa
1765 "
1766
1767 ARCH_EXT_LIST_LOONGSON="
1768     loongson2
1769     loongson3
1770     mmi
1771 "
1772
1773 ARCH_EXT_LIST_X86_SIMD="
1774     aesni
1775     amd3dnow
1776     amd3dnowext
1777     avx
1778     avx2
1779     fma3
1780     fma4
1781     mmx
1782     mmxext
1783     sse
1784     sse2
1785     sse3
1786     sse4
1787     sse42
1788     ssse3
1789     xop
1790 "
1791
1792 ARCH_EXT_LIST_PPC="
1793     altivec
1794     dcbzl
1795     ldbrx
1796     power8
1797     ppc4xx
1798     vsx
1799 "
1800
1801 ARCH_EXT_LIST_X86="
1802     $ARCH_EXT_LIST_X86_SIMD
1803     cpunop
1804     i686
1805 "
1806
1807 ARCH_EXT_LIST="
1808     $ARCH_EXT_LIST_ARM
1809     $ARCH_EXT_LIST_PPC
1810     $ARCH_EXT_LIST_X86
1811     $ARCH_EXT_LIST_MIPS
1812     $ARCH_EXT_LIST_LOONGSON
1813 "
1814
1815 ARCH_FEATURES="
1816     aligned_stack
1817     fast_64bit
1818     fast_clz
1819     fast_cmov
1820     local_aligned_8
1821     local_aligned_16
1822     local_aligned_32
1823     simd_align_16
1824     simd_align_32
1825 "
1826
1827 BUILTIN_LIST="
1828     atomic_cas_ptr
1829     machine_rw_barrier
1830     MemoryBarrier
1831     mm_empty
1832     rdtsc
1833     sarestart
1834     sem_timedwait
1835     sync_val_compare_and_swap
1836 "
1837 HAVE_LIST_CMDLINE="
1838     inline_asm
1839     symver
1840     x86asm
1841 "
1842
1843 HAVE_LIST_PUB="
1844     bigendian
1845     fast_unaligned
1846 "
1847
1848 HEADERS_LIST="
1849     alsa_asoundlib_h
1850     altivec_h
1851     arpa_inet_h
1852     asm_types_h
1853     cdio_paranoia_h
1854     cdio_paranoia_paranoia_h
1855     cuda_h
1856     d3d11_h
1857     dispatch_dispatch_h
1858     dev_bktr_ioctl_bt848_h
1859     dev_bktr_ioctl_meteor_h
1860     dev_ic_bt8xx_h
1861     dev_video_bktr_ioctl_bt848_h
1862     dev_video_meteor_ioctl_meteor_h
1863     direct_h
1864     dirent_h
1865     dlfcn_h
1866     dxgidebug_h
1867     dxva_h
1868     ES2_gl_h
1869     gsm_h
1870     io_h
1871     mach_mach_time_h
1872     machine_ioctl_bt848_h
1873     machine_ioctl_meteor_h
1874     malloc_h
1875     opencv2_core_core_c_h
1876     openjpeg_2_2_openjpeg_h
1877     openjpeg_2_1_openjpeg_h
1878     openjpeg_2_0_openjpeg_h
1879     openjpeg_1_5_openjpeg_h
1880     OpenGL_gl3_h
1881     poll_h
1882     sndio_h
1883     soundcard_h
1884     stdatomic_h
1885     sys_mman_h
1886     sys_param_h
1887     sys_resource_h
1888     sys_select_h
1889     sys_soundcard_h
1890     sys_time_h
1891     sys_un_h
1892     sys_videoio_h
1893     termios_h
1894     udplite_h
1895     unistd_h
1896     valgrind_valgrind_h
1897     windows_h
1898     winsock2_h
1899 "
1900
1901 INTRINSICS_LIST="
1902     intrinsics_neon
1903 "
1904
1905 COMPLEX_FUNCS="
1906     cabs
1907     cexp
1908 "
1909
1910 MATH_FUNCS="
1911     atanf
1912     atan2f
1913     cbrt
1914     cbrtf
1915     copysign
1916     cosf
1917     erf
1918     exp2
1919     exp2f
1920     expf
1921     hypot
1922     isfinite
1923     isinf
1924     isnan
1925     ldexpf
1926     llrint
1927     llrintf
1928     log2
1929     log2f
1930     log10f
1931     lrint
1932     lrintf
1933     powf
1934     rint
1935     round
1936     roundf
1937     sinf
1938     trunc
1939     truncf
1940 "
1941
1942 SYSTEM_FUNCS="
1943     access
1944     aligned_malloc
1945     arc4random
1946     clock_gettime
1947     closesocket
1948     CommandLineToArgvW
1949     CoTaskMemFree
1950     CryptGenRandom
1951     dlopen
1952     fcntl
1953     flt_lim
1954     fork
1955     getaddrinfo
1956     gethrtime
1957     getopt
1958     GetProcessAffinityMask
1959     GetProcessMemoryInfo
1960     GetProcessTimes
1961     getrusage
1962     GetSystemTimeAsFileTime
1963     gettimeofday
1964     glob
1965     glXGetProcAddress
1966     gmtime_r
1967     inet_aton
1968     isatty
1969     jack_port_get_latency_range
1970     kbhit
1971     LoadLibrary
1972     localtime_r
1973     lstat
1974     lzo1x_999_compress
1975     mach_absolute_time
1976     MapViewOfFile
1977     memalign
1978     mkstemp
1979     mmap
1980     mprotect
1981     nanosleep
1982     PeekNamedPipe
1983     posix_memalign
1984     pthread_cancel
1985     sched_getaffinity
1986     SetConsoleTextAttribute
1987     SetConsoleCtrlHandler
1988     setmode
1989     setrlimit
1990     Sleep
1991     strerror_r
1992     sysconf
1993     sysctl
1994     usleep
1995     UTGetOSTypeFromString
1996     VirtualAlloc
1997     wglGetProcAddress
1998 "
1999
2000 TOOLCHAIN_FEATURES="
2001     as_dn_directive
2002     as_fpu_directive
2003     as_func
2004     as_object_arch
2005     asm_mod_q
2006     attribute_may_alias
2007     attribute_packed
2008     blocks_extension
2009     ebp_available
2010     ebx_available
2011     gnu_as
2012     gnu_windres
2013     ibm_asm
2014     inline_asm_direct_symbol_refs
2015     inline_asm_labels
2016     inline_asm_nonlocal_labels
2017     pragma_deprecated
2018     rsync_contimeout
2019     symver_asm_label
2020     symver_gnu_asm
2021     vfp_args
2022     xform_asm
2023     xmm_clobbers
2024 "
2025
2026 TYPES_LIST="
2027     CONDITION_VARIABLE_Ptr
2028     socklen_t
2029     struct_addrinfo
2030     struct_group_source_req
2031     struct_ip_mreq_source
2032     struct_ipv6_mreq
2033     struct_msghdr_msg_flags
2034     struct_pollfd
2035     struct_rusage_ru_maxrss
2036     struct_sctp_event_subscribe
2037     struct_sockaddr_in6
2038     struct_sockaddr_sa_len
2039     struct_sockaddr_storage
2040     struct_stat_st_mtim_tv_nsec
2041     struct_v4l2_frmivalenum_discrete
2042 "
2043
2044 HAVE_LIST="
2045     $ARCH_EXT_LIST
2046     $(add_suffix _external $ARCH_EXT_LIST)
2047     $(add_suffix _inline   $ARCH_EXT_LIST)
2048     $ARCH_FEATURES
2049     $ATOMICS_LIST
2050     $BUILTIN_LIST
2051     $COMPLEX_FUNCS
2052     $HAVE_LIST_CMDLINE
2053     $HAVE_LIST_PUB
2054     $HEADERS_LIST
2055     $INTRINSICS_LIST
2056     $MATH_FUNCS
2057     $SYSTEM_FUNCS
2058     $THREADS_LIST
2059     $TOOLCHAIN_FEATURES
2060     $TYPES_LIST
2061     alsa
2062     atomics_native
2063     dos_paths
2064     jack
2065     libc_msvcrt
2066     makeinfo
2067     makeinfo_html
2068     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2069     perl
2070     pod2man
2071     sdl2
2072     section_data_rel_ro
2073     sndio
2074     texi2html
2075     threads
2076     uwp
2077     vaapi_drm
2078     vaapi_x11
2079     vdpau_x11
2080     winrt
2081 "
2082
2083 # options emitted with CONFIG_ prefix but not available on the command line
2084 CONFIG_EXTRA="
2085     aandcttables
2086     ac3dsp
2087     audio_frame_queue
2088     audiodsp
2089     blockdsp
2090     bswapdsp
2091     cabac
2092     dirac_parse
2093     dvprofile
2094     exif
2095     faandct
2096     faanidct
2097     fdctdsp
2098     flacdsp
2099     fmtconvert
2100     frame_thread_encoder
2101     g722dsp
2102     golomb
2103     gplv3
2104     h263dsp
2105     h264chroma
2106     h264dsp
2107     h264parse
2108     h264pred
2109     h264qpel
2110     hevcparse
2111     hpeldsp
2112     huffman
2113     huffyuvdsp
2114     huffyuvencdsp
2115     idctdsp
2116     iirfilter
2117     mdct15
2118     intrax8
2119     iso_media
2120     ividsp
2121     jpegtables
2122     lgplv3
2123     libx262
2124     llauddsp
2125     llviddsp
2126     llvidencdsp
2127     lpc
2128     lzf
2129     me_cmp
2130     mpeg_er
2131     mpegaudio
2132     mpegaudiodsp
2133     mpegaudioheader
2134     mpegvideo
2135     mpegvideoenc
2136     mss34dsp
2137     pixblockdsp
2138     qpeldsp
2139     qsv
2140     qsvdec
2141     qsvenc
2142     rangecoder
2143     riffdec
2144     riffenc
2145     rtpdec
2146     rtpenc_chain
2147     rv34dsp
2148     sinewin
2149     snappy
2150     srtp
2151     startcode
2152     texturedsp
2153     texturedspenc
2154     tpeldsp
2155     vaapi_encode
2156     vc1dsp
2157     videodsp
2158     vp3dsp
2159     vp56dsp
2160     vp8dsp
2161     vt_bt2020
2162     wma_freqs
2163     wmv2dsp
2164 "
2165
2166 CMDLINE_SELECT="
2167     $ARCH_EXT_LIST
2168     $CONFIG_LIST
2169     $HAVE_LIST_CMDLINE
2170     $THREADS_LIST
2171     asm
2172     cross_compile
2173     debug
2174     extra_warnings
2175     logging
2176     lto
2177     optimizations
2178     rpath
2179     stripping
2180 "
2181
2182 PATHS_LIST="
2183     bindir
2184     datadir
2185     docdir
2186     incdir
2187     libdir
2188     mandir
2189     pkgconfigdir
2190     prefix
2191     shlibdir
2192     install_name_dir
2193 "
2194
2195 CMDLINE_SET="
2196     $PATHS_LIST
2197     ar
2198     arch
2199     as
2200     assert_level
2201     build_suffix
2202     cc
2203     objcc
2204     cpu
2205     cross_prefix
2206     custom_allocator
2207     cxx
2208     dep_cc
2209     doxygen
2210     env
2211     extra_version
2212     gas
2213     host_cc
2214     host_cflags
2215     host_extralibs
2216     host_ld
2217     host_ldflags
2218     host_os
2219     ignore_tests
2220     install
2221     ld
2222     ln_s
2223     logfile
2224     malloc_prefix
2225     nm
2226     optflags
2227     nvccflags
2228     pkg_config
2229     pkg_config_flags
2230     progs_suffix
2231     random_seed
2232     ranlib
2233     samples
2234     strip
2235     sws_max_filter_size
2236     sysinclude
2237     sysroot
2238     target_exec
2239     target_os
2240     target_path
2241     target_samples
2242     tempprefix
2243     toolchain
2244     valgrind
2245     x86asmexe
2246 "
2247
2248 CMDLINE_APPEND="
2249     extra_cflags
2250     extra_cxxflags
2251     extra_objcflags
2252     host_cppflags
2253 "
2254
2255 # code dependency declarations
2256
2257 # architecture extensions
2258
2259 armv5te_deps="arm"
2260 armv6_deps="arm"
2261 armv6t2_deps="arm"
2262 armv8_deps="aarch64"
2263 neon_deps_any="aarch64 arm"
2264 intrinsics_neon_deps="neon"
2265 vfp_deps_any="aarch64 arm"
2266 vfpv3_deps="vfp"
2267 setend_deps="arm"
2268
2269 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2270
2271 loongson2_deps="mips"
2272 loongson3_deps="mips"
2273 mipsfpu_deps="mips"
2274 mipsdsp_deps="mips"
2275 mipsdspr2_deps="mips"
2276 mips32r2_deps="mips"
2277 mips32r5_deps="mips"
2278 mips32r6_deps="mips"
2279 mips64r2_deps="mips"
2280 mips64r6_deps="mips"
2281 msa_deps="mipsfpu"
2282 mmi_deps="mips"
2283
2284 altivec_deps="ppc"
2285 dcbzl_deps="ppc"
2286 ldbrx_deps="ppc"
2287 ppc4xx_deps="ppc"
2288 vsx_deps="altivec"
2289 power8_deps="vsx"
2290
2291 cpunop_deps="i686"
2292 x86_64_select="i686"
2293 x86_64_suggest="fast_cmov"
2294
2295 amd3dnow_deps="mmx"
2296 amd3dnowext_deps="amd3dnow"
2297 i686_deps="x86"
2298 mmx_deps="x86"
2299 mmxext_deps="mmx"
2300 sse_deps="mmxext"
2301 sse2_deps="sse"
2302 sse3_deps="sse2"
2303 ssse3_deps="sse3"
2304 sse4_deps="ssse3"
2305 sse42_deps="sse4"
2306 aesni_deps="sse42"
2307 avx_deps="sse42"
2308 xop_deps="avx"
2309 fma3_deps="avx"
2310 fma4_deps="avx"
2311 avx2_deps="avx"
2312
2313 mmx_external_deps="x86asm"
2314 mmx_inline_deps="inline_asm"
2315 mmx_suggest="mmx_external mmx_inline"
2316
2317 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2318     eval dep=\$${ext}_deps
2319     eval ${ext}_external_deps='"${dep}_external"'
2320     eval ${ext}_inline_deps='"${dep}_inline"'
2321     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2322 done
2323
2324 aligned_stack_if_any="aarch64 ppc x86"
2325 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2326 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2327 fast_unaligned_if_any="aarch64 ppc x86"
2328 simd_align_16_if_any="altivec neon sse"
2329 simd_align_32_if_any="avx"
2330
2331 # system capabilities
2332 symver_if_any="symver_asm_label symver_gnu_asm"
2333 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2334
2335 # threading support
2336 atomics_gcc_if="sync_val_compare_and_swap"
2337 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2338 atomics_win32_if="MemoryBarrier"
2339 atomics_native_if_any="$ATOMICS_LIST"
2340 w32threads_deps="atomics_native"
2341 threads_if_any="$THREADS_LIST"
2342
2343 # subsystems
2344 dct_select="rdft"
2345 dirac_parse_select="golomb"
2346 error_resilience_select="me_cmp"
2347 faandct_deps="faan fdctdsp"
2348 faanidct_deps="faan idctdsp"
2349 h264dsp_select="startcode"
2350 hevcparse_select="golomb"
2351 frame_thread_encoder_deps="encoders threads"
2352 intrax8_select="blockdsp idctdsp"
2353 mdct_select="fft"
2354 mdct15_select="fft"
2355 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2356 mpeg_er_select="error_resilience"
2357 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2358 mpegaudiodsp_select="dct"
2359 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2360 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2361 vc1dsp_select="h264chroma qpeldsp startcode"
2362 rdft_select="fft"
2363
2364 # decoders / encoders
2365 aac_decoder_select="mdct15 mdct sinewin"
2366 aac_fixed_decoder_select="mdct sinewin"
2367 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2368 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2369 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2370 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2371 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2372 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2373 adpcm_g722_decoder_select="g722dsp"
2374 adpcm_g722_encoder_select="g722dsp"
2375 aic_decoder_select="golomb idctdsp"
2376 alac_encoder_select="lpc"
2377 als_decoder_select="bswapdsp"
2378 amrnb_decoder_select="lsp"
2379 amrwb_decoder_select="lsp"
2380 amv_decoder_select="sp5x_decoder exif"
2381 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2382 ape_decoder_select="bswapdsp llauddsp"
2383 apng_decoder_select="zlib"
2384 apng_encoder_select="llvidencdsp zlib"
2385 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2386 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2387 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2388 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2389 atrac1_decoder_select="mdct sinewin"
2390 atrac3_decoder_select="mdct"
2391 atrac3p_decoder_select="mdct sinewin"
2392 avrn_decoder_select="exif jpegtables"
2393 bink_decoder_select="blockdsp hpeldsp"
2394 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2395 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2396 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2397 clearvideo_decoder_select="idctdsp"
2398 cllc_decoder_select="bswapdsp"
2399 comfortnoise_encoder_select="lpc"
2400 cook_decoder_select="audiodsp mdct sinewin"
2401 cscd_decoder_select="lzo"
2402 cscd_decoder_suggest="zlib"
2403 dca_decoder_select="mdct"
2404 dds_decoder_select="texturedsp"
2405 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2406 dnxhd_decoder_select="blockdsp idctdsp"
2407 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2408 dolby_e_decoder_select="mdct"
2409 dvvideo_decoder_select="dvprofile idctdsp"
2410 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2411 dxa_decoder_select="zlib"
2412 dxv_decoder_select="lzf texturedsp"
2413 eac3_decoder_select="ac3_decoder"
2414 eac3_encoder_select="ac3_encoder"
2415 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2416 eatgq_decoder_select="aandcttables"
2417 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2418 exr_decoder_select="zlib"
2419 ffv1_decoder_select="rangecoder"
2420 ffv1_encoder_select="rangecoder"
2421 ffvhuff_decoder_select="huffyuv_decoder"
2422 ffvhuff_encoder_select="huffyuv_encoder"
2423 fic_decoder_select="golomb"
2424 flac_decoder_select="flacdsp"
2425 flac_encoder_select="bswapdsp flacdsp lpc"
2426 flashsv2_decoder_select="zlib"
2427 flashsv2_encoder_select="zlib"
2428 flashsv_decoder_select="zlib"
2429 flashsv_encoder_select="zlib"
2430 flv_decoder_select="h263_decoder"
2431 flv_encoder_select="h263_encoder"
2432 fourxm_decoder_select="blockdsp bswapdsp"
2433 fraps_decoder_select="bswapdsp huffman"
2434 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2435 g729_decoder_select="audiodsp"
2436 h261_decoder_select="mpegvideo"
2437 h261_encoder_select="aandcttables mpegvideoenc"
2438 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2439 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2440 h263i_decoder_select="h263_decoder"
2441 h263p_decoder_select="h263_decoder"
2442 h263p_encoder_select="h263_encoder"
2443 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2444 h264_decoder_suggest="error_resilience"
2445 hap_decoder_select="snappy texturedsp"
2446 hap_encoder_deps="libsnappy"
2447 hap_encoder_select="texturedspenc"
2448 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2449 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2450 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2451 iac_decoder_select="imc_decoder"
2452 imc_decoder_select="bswapdsp fft mdct sinewin"
2453 indeo3_decoder_select="hpeldsp"
2454 indeo4_decoder_select="ividsp"
2455 indeo5_decoder_select="ividsp"
2456 interplay_video_decoder_select="hpeldsp"
2457 jpegls_decoder_select="mjpeg_decoder"
2458 jv_decoder_select="blockdsp"
2459 lagarith_decoder_select="llviddsp"
2460 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2461 magicyuv_decoder_select="llviddsp"
2462 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2463 metasound_decoder_select="lsp mdct sinewin"
2464 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2465 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2466 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2467 mjpegb_decoder_select="mjpeg_decoder"
2468 mlp_decoder_select="mlp_parser"
2469 mlp_encoder_select="lpc"
2470 motionpixels_decoder_select="bswapdsp"
2471 mp1_decoder_select="mpegaudio"
2472 mp1float_decoder_select="mpegaudio"
2473 mp2_decoder_select="mpegaudio"
2474 mp2float_decoder_select="mpegaudio"
2475 mp3_decoder_select="mpegaudio"
2476 mp3adu_decoder_select="mpegaudio"
2477 mp3adufloat_decoder_select="mpegaudio"
2478 mp3float_decoder_select="mpegaudio"
2479 mp3on4_decoder_select="mpegaudio"
2480 mp3on4float_decoder_select="mpegaudio"
2481 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2482 mpc8_decoder_select="mpegaudiodsp"
2483 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2484 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2485 mpegvideo_decoder_select="mpegvideo"
2486 mpeg1video_decoder_select="mpegvideo"
2487 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2488 mpeg2video_decoder_select="mpegvideo"
2489 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2490 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2491 mpeg4_encoder_select="h263_encoder"
2492 msa1_decoder_select="mss34dsp"
2493 mscc_decoder_select="zlib"
2494 msmpeg4v1_decoder_select="h263_decoder"
2495 msmpeg4v2_decoder_select="h263_decoder"
2496 msmpeg4v2_encoder_select="h263_encoder"
2497 msmpeg4v3_decoder_select="h263_decoder"
2498 msmpeg4v3_encoder_select="h263_encoder"
2499 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2500 mts2_decoder_select="mss34dsp"
2501 mxpeg_decoder_select="mjpeg_decoder"
2502 nellymoser_decoder_select="mdct sinewin"
2503 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2504 nuv_decoder_select="idctdsp lzo"
2505 on2avc_decoder_select="mdct"
2506 opus_decoder_deps="swresample"
2507 opus_decoder_select="mdct15"
2508 opus_encoder_select="audio_frame_queue mdct15"
2509 png_decoder_select="zlib"
2510 png_encoder_select="llvidencdsp zlib"
2511 prores_decoder_select="blockdsp idctdsp"
2512 prores_encoder_select="fdctdsp"
2513 qcelp_decoder_select="lsp"
2514 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2515 ra_144_decoder_select="audiodsp"
2516 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2517 ralf_decoder_select="golomb"
2518 rawvideo_decoder_select="bswapdsp"
2519 rscc_decoder_select="zlib"
2520 rtjpeg_decoder_select="me_cmp"
2521 rv10_decoder_select="h263_decoder"
2522 rv10_encoder_select="h263_encoder"
2523 rv20_decoder_select="h263_decoder"
2524 rv20_encoder_select="h263_encoder"
2525 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2526 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2527 screenpresso_decoder_select="zlib"
2528 shorten_decoder_select="bswapdsp"
2529 sipr_decoder_select="lsp"
2530 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2531 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2532 sonic_decoder_select="golomb rangecoder"
2533 sonic_encoder_select="golomb rangecoder"
2534 sonic_ls_encoder_select="golomb rangecoder"
2535 sp5x_decoder_select="mjpeg_decoder"
2536 srgc_decoder_select="zlib"
2537 svq1_decoder_select="hpeldsp"
2538 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2539 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2540 svq3_decoder_suggest="zlib"
2541 tak_decoder_select="audiodsp"
2542 tdsc_decoder_select="zlib mjpeg_decoder"
2543 theora_decoder_select="vp3_decoder"
2544 thp_decoder_select="mjpeg_decoder"
2545 tiff_decoder_suggest="zlib lzma"
2546 tiff_encoder_suggest="zlib"
2547 truehd_decoder_select="mlp_parser"
2548 truehd_encoder_select="lpc"
2549 truemotion2_decoder_select="bswapdsp"
2550 truespeech_decoder_select="bswapdsp"
2551 tscc_decoder_select="zlib"
2552 twinvq_decoder_select="mdct lsp sinewin"
2553 txd_decoder_select="texturedsp"
2554 utvideo_decoder_select="bswapdsp llviddsp"
2555 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2556 vble_decoder_select="llviddsp"
2557 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2558 vc1_qsv_decoder_deps="libmfx"
2559 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2560 vc1image_decoder_select="vc1_decoder"
2561 vorbis_decoder_select="mdct"
2562 vorbis_encoder_select="mdct"
2563 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2564 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2565 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2566 vp6a_decoder_select="vp6_decoder"
2567 vp6f_decoder_select="vp6_decoder"
2568 vp7_decoder_select="h264pred videodsp vp8dsp"
2569 vp8_decoder_select="h264pred videodsp vp8dsp"
2570 vp9_decoder_select="videodsp vp9_parser"
2571 webp_decoder_select="vp8_decoder exif"
2572 wmalossless_decoder_select="llauddsp"
2573 wmapro_decoder_select="mdct sinewin wma_freqs"
2574 wmav1_decoder_select="mdct sinewin wma_freqs"
2575 wmav1_encoder_select="mdct sinewin wma_freqs"
2576 wmav2_decoder_select="mdct sinewin wma_freqs"
2577 wmav2_encoder_select="mdct sinewin wma_freqs"
2578 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2579 wmv1_decoder_select="h263_decoder"
2580 wmv1_encoder_select="h263_encoder"
2581 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2582 wmv2_encoder_select="h263_encoder wmv2dsp"
2583 wmv3_decoder_select="vc1_decoder"
2584 wmv3image_decoder_select="wmv3_decoder"
2585 xma1_decoder_select="wmapro_decoder"
2586 xma2_decoder_select="wmapro_decoder"
2587 zerocodec_decoder_select="zlib"
2588 zlib_decoder_select="zlib"
2589 zlib_encoder_select="zlib"
2590 zmbv_decoder_select="zlib"
2591 zmbv_encoder_select="zlib"
2592
2593 # platform codecs
2594 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2595 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2596
2597 # hardware accelerators
2598 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2599 cuda_deps_any="dlopen LoadLibrary"
2600 cuvid_deps="cuda"
2601 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2602 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2603 dxva2_extralibs="-luser32"
2604 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2605 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2606 vda_deps="vda_framework pthreads"
2607 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2608 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2609 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2610 xvmc_deps="X11_extensions_XvMClib_h"
2611
2612 h263_vaapi_hwaccel_deps="vaapi"
2613 h263_vaapi_hwaccel_select="h263_decoder"
2614 h263_videotoolbox_hwaccel_deps="videotoolbox"
2615 h263_videotoolbox_hwaccel_select="h263_decoder"
2616 h264_cuvid_hwaccel_deps="cuda cuvid"
2617 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2618 h264_d3d11va_hwaccel_deps="d3d11va"
2619 h264_d3d11va_hwaccel_select="h264_decoder"
2620 h264_d3d11va2_hwaccel_deps="d3d11va"
2621 h264_d3d11va2_hwaccel_select="h264_decoder"
2622 h264_dxva2_hwaccel_deps="dxva2"
2623 h264_dxva2_hwaccel_select="h264_decoder"
2624 h264_mediacodec_hwaccel_deps="mediacodec"
2625 h264_mmal_hwaccel_deps="mmal"
2626 h264_qsv_hwaccel_deps="libmfx"
2627 h264_vaapi_hwaccel_deps="vaapi"
2628 h264_vaapi_hwaccel_select="h264_decoder"
2629 h264_vda_hwaccel_deps="vda"
2630 h264_vda_hwaccel_select="h264_decoder"
2631 h264_vda_old_hwaccel_deps="vda"
2632 h264_vda_old_hwaccel_select="h264_decoder"
2633 h264_vdpau_hwaccel_deps="vdpau"
2634 h264_vdpau_hwaccel_select="h264_decoder"
2635 h264_videotoolbox_hwaccel_deps="videotoolbox"
2636 h264_videotoolbox_hwaccel_select="h264_decoder"
2637 hevc_cuvid_hwaccel_deps="cuda cuvid"
2638 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2639 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2640 hevc_d3d11va_hwaccel_select="hevc_decoder"
2641 hevc_mediacodec_hwaccel_deps="mediacodec"
2642 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2643 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2644 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2645 hevc_dxva2_hwaccel_select="hevc_decoder"
2646 hevc_qsv_hwaccel_deps="libmfx"
2647 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2648 hevc_vaapi_hwaccel_select="hevc_decoder"
2649 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2650 hevc_vdpau_hwaccel_select="hevc_decoder"
2651 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2652 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2653 mpeg_xvmc_hwaccel_deps="xvmc"
2654 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2655 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2656 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2657 mpeg1_vdpau_hwaccel_deps="vdpau"
2658 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2659 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2660 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2661 mpeg1_xvmc_hwaccel_deps="xvmc"
2662 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2663 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2664 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2665 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2666 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2667 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2668 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2669 mpeg2_dxva2_hwaccel_deps="dxva2"
2670 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2672 mpeg2_mmal_hwaccel_deps="mmal"
2673 mpeg2_qsv_hwaccel_deps="libmfx"
2674 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2675 mpeg2_vaapi_hwaccel_deps="vaapi"
2676 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2677 mpeg2_vdpau_hwaccel_deps="vdpau"
2678 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2679 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2680 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2681 mpeg2_xvmc_hwaccel_deps="xvmc"
2682 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2683 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2684 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2685 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2686 mpeg4_mmal_hwaccel_deps="mmal"
2687 mpeg4_vaapi_hwaccel_deps="vaapi"
2688 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2689 mpeg4_vdpau_hwaccel_deps="vdpau"
2690 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2691 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2692 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2693 vc1_cuvid_hwaccel_deps="cuda cuvid"
2694 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2695 vc1_d3d11va_hwaccel_deps="d3d11va"
2696 vc1_d3d11va_hwaccel_select="vc1_decoder"
2697 vc1_d3d11va2_hwaccel_deps="d3d11va"
2698 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2699 vc1_dxva2_hwaccel_deps="dxva2"
2700 vc1_dxva2_hwaccel_select="vc1_decoder"
2701 vc1_mmal_hwaccel_deps="mmal"
2702 vc1_qsv_hwaccel_deps="libmfx"
2703 vc1_qsv_hwaccel_select="qsvdec_vc1"
2704 vc1_vaapi_hwaccel_deps="vaapi"
2705 vc1_vaapi_hwaccel_select="vc1_decoder"
2706 vc1_vdpau_hwaccel_deps="vdpau"
2707 vc1_vdpau_hwaccel_select="vc1_decoder"
2708 vp8_cuvid_hwaccel_deps="cuda cuvid"
2709 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2710 vp9_cuvid_hwaccel_deps="cuda cuvid"
2711 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2712 vp8_mediacodec_hwaccel_deps="mediacodec"
2713 vp8_qsv_hwaccel_deps="libmfx"
2714 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2715 vp9_d3d11va_hwaccel_select="vp9_decoder"
2716 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2717 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2718 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2719 vp9_dxva2_hwaccel_select="vp9_decoder"
2720 vp9_mediacodec_hwaccel_deps="mediacodec"
2721 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2722 vp9_vaapi_hwaccel_select="vp9_decoder"
2723 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2724 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2725 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2726 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2727 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2728
2729 # hardware-accelerated codecs
2730 omx_deps="dlopen pthreads"
2731 omx_extralibs='$ldl'
2732 omx_rpi_select="omx"
2733 qsvdec_select="qsv"
2734 qsvenc_select="qsv"
2735 vaapi_encode_deps="vaapi"
2736
2737 hwupload_cuda_filter_deps="cuda"
2738 scale_npp_filter_deps="cuda libnpp"
2739 scale_cuda_filter_deps="cuda_sdk"
2740
2741 nvenc_deps="cuda"
2742 nvenc_deps_any="dlopen LoadLibrary"
2743 nvenc_encoder_deps="nvenc"
2744
2745 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2746 h264_cuvid_decoder_deps="cuda cuvid"
2747 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2748 h264_mediacodec_decoder_deps="mediacodec"
2749 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2750 h264_mmal_decoder_deps="mmal"
2751 h264_nvenc_encoder_deps="nvenc"
2752 h264_omx_encoder_deps="omx"
2753 h264_qsv_decoder_deps="libmfx"
2754 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2755 h264_qsv_encoder_deps="libmfx"
2756 h264_qsv_encoder_select="qsvenc"
2757 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2758 h264_vaapi_encoder_select="vaapi_encode golomb"
2759 h264_vda_decoder_deps="vda"
2760 h264_vda_decoder_select="h264_decoder"
2761 h264_vdpau_decoder_deps="vdpau"
2762 h264_vdpau_decoder_select="h264_decoder"
2763 hevc_cuvid_decoder_deps="cuda cuvid"
2764 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2765 hevc_mediacodec_decoder_deps="mediacodec"
2766 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2767 hevc_nvenc_encoder_deps="nvenc"
2768 hevc_qsv_decoder_deps="libmfx"
2769 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2770 hevc_qsv_encoder_deps="libmfx"
2771 hevc_qsv_encoder_select="hevcparse qsvenc"
2772 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2773 hevc_vaapi_encoder_select="vaapi_encode golomb"
2774 mjpeg_cuvid_decoder_deps="cuda cuvid"
2775 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2776 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2777 mpeg1_cuvid_decoder_deps="cuda cuvid"
2778 mpeg1_vdpau_decoder_deps="vdpau"
2779 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2780 mpeg2_crystalhd_decoder_select="crystalhd"
2781 mpeg2_cuvid_decoder_deps="cuda cuvid"
2782 mpeg2_mmal_decoder_deps="mmal"
2783 mpeg2_mediacodec_decoder_deps="mediacodec"
2784 mpeg2_qsv_decoder_deps="libmfx"
2785 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2786 mpeg2_qsv_encoder_deps="libmfx"
2787 mpeg2_qsv_encoder_select="qsvenc"
2788 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2789 mpeg2_vaapi_encoder_select="vaapi_encode"
2790 mpeg4_crystalhd_decoder_select="crystalhd"
2791 mpeg4_cuvid_decoder_deps="cuda cuvid"
2792 mpeg4_mediacodec_decoder_deps="mediacodec"
2793 mpeg4_mmal_decoder_deps="mmal"
2794 mpeg4_omx_encoder_deps="omx"
2795 mpeg4_vdpau_decoder_deps="vdpau"
2796 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2797 mpeg_vdpau_decoder_deps="vdpau"
2798 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2799 msmpeg4_crystalhd_decoder_select="crystalhd"
2800 nvenc_h264_encoder_select="h264_nvenc_encoder"
2801 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2802 vc1_crystalhd_decoder_select="crystalhd"
2803 vc1_cuvid_decoder_deps="cuda cuvid"
2804 vc1_mmal_decoder_deps="mmal"
2805 vc1_vdpau_decoder_deps="vdpau"
2806 vc1_vdpau_decoder_select="vc1_decoder"
2807 vp8_cuvid_decoder_deps="cuda cuvid"
2808 vp8_mediacodec_decoder_deps="mediacodec"
2809 vp8_qsv_decoder_deps="libmfx"
2810 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2811 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2812 vp8_vaapi_encoder_select="vaapi_encode"
2813 vp9_cuvid_decoder_deps="cuda cuvid"
2814 vp9_mediacodec_decoder_deps="mediacodec"
2815 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2816 vp9_vaapi_encoder_select="vaapi_encode"
2817 wmv3_crystalhd_decoder_select="crystalhd"
2818 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2819
2820 # parsers
2821 h264_parser_select="golomb h264dsp h264parse"
2822 hevc_parser_select="hevcparse"
2823 mpegaudio_parser_select="mpegaudioheader"
2824 mpegvideo_parser_select="mpegvideo"
2825 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2826 vc1_parser_select="vc1dsp"
2827
2828 # bitstream_filters
2829 mjpeg2jpeg_bsf_select="jpegtables"
2830
2831 # external libraries
2832 aac_at_decoder_deps="audiotoolbox"
2833 ac3_at_decoder_deps="audiotoolbox"
2834 ac3_at_decoder_select="ac3_parser"
2835 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2836 alac_at_decoder_deps="audiotoolbox"
2837 amr_nb_at_decoder_deps="audiotoolbox"
2838 avisynth_deps_any="dlopen LoadLibrary"
2839 avisynth_demuxer_deps="avisynth"
2840 avisynth_demuxer_select="riffdec"
2841 eac3_at_decoder_deps="audiotoolbox"
2842 eac3_at_decoder_select="ac3_parser"
2843 gsm_ms_at_decoder_deps="audiotoolbox"
2844 ilbc_at_decoder_deps="audiotoolbox"
2845 mp1_at_decoder_deps="audiotoolbox"
2846 mp2_at_decoder_deps="audiotoolbox"
2847 mp3_at_decoder_deps="audiotoolbox"
2848 mp1_at_decoder_select="mpegaudioheader"
2849 mp2_at_decoder_select="mpegaudioheader"
2850 mp3_at_decoder_select="mpegaudioheader"
2851 pcm_alaw_at_decoder_deps="audiotoolbox"
2852 pcm_mulaw_at_decoder_deps="audiotoolbox"
2853 qdmc_at_decoder_deps="audiotoolbox"
2854 qdm2_at_decoder_deps="audiotoolbox"
2855 aac_at_encoder_deps="audiotoolbox"
2856 aac_at_encoder_select="audio_frame_queue"
2857 alac_at_encoder_deps="audiotoolbox"
2858 alac_at_encoder_select="audio_frame_queue"
2859 ilbc_at_encoder_deps="audiotoolbox"
2860 ilbc_at_encoder_select="audio_frame_queue"
2861 pcm_alaw_at_encoder_deps="audiotoolbox"
2862 pcm_alaw_at_encoder_select="audio_frame_queue"
2863 pcm_mulaw_at_encoder_deps="audiotoolbox"
2864 pcm_mulaw_at_encoder_select="audio_frame_queue"
2865 chromaprint_muxer_deps="chromaprint"
2866 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2867 libcelt_decoder_deps="libcelt"
2868 libfdk_aac_decoder_deps="libfdk_aac"
2869 libfdk_aac_encoder_deps="libfdk_aac"
2870 libfdk_aac_encoder_select="audio_frame_queue"
2871 libgme_demuxer_deps="libgme"
2872 libgsm_decoder_deps="libgsm"
2873 libgsm_encoder_deps="libgsm"
2874 libgsm_ms_decoder_deps="libgsm"
2875 libgsm_ms_encoder_deps="libgsm"
2876 libilbc_decoder_deps="libilbc"
2877 libilbc_encoder_deps="libilbc"
2878 libkvazaar_encoder_deps="libkvazaar"
2879 libmodplug_demuxer_deps="libmodplug"
2880 libmp3lame_encoder_deps="libmp3lame"
2881 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2882 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2883 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2884 libopencore_amrnb_encoder_select="audio_frame_queue"
2885 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2886 libopenh264_decoder_deps="libopenh264"
2887 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2888 libopenh264_encoder_deps="libopenh264"
2889 libopenjpeg_decoder_deps="libopenjpeg"
2890 libopenjpeg_encoder_deps="libopenjpeg"
2891 libopenmpt_demuxer_deps="libopenmpt"
2892 libopus_decoder_deps="libopus"
2893 libopus_encoder_deps="libopus"
2894 libopus_encoder_select="audio_frame_queue"
2895 librsvg_decoder_deps="librsvg"
2896 libshine_encoder_deps="libshine"
2897 libshine_encoder_select="audio_frame_queue"
2898 libspeex_decoder_deps="libspeex"
2899 libspeex_encoder_deps="libspeex"
2900 libspeex_encoder_select="audio_frame_queue"
2901 libtheora_encoder_deps="libtheora"
2902 libtwolame_encoder_deps="libtwolame"
2903 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2904 libvorbis_decoder_deps="libvorbis"
2905 libvorbis_encoder_deps="libvorbis"
2906 libvorbis_encoder_select="audio_frame_queue"
2907 libvpx_vp8_decoder_deps="libvpx"
2908 libvpx_vp8_encoder_deps="libvpx"
2909 libvpx_vp9_decoder_deps="libvpx"
2910 libvpx_vp9_encoder_deps="libvpx"
2911 libwavpack_encoder_deps="libwavpack"
2912 libwavpack_encoder_select="audio_frame_queue"
2913 libwebp_encoder_deps="libwebp"
2914 libwebp_anim_encoder_deps="libwebp"
2915 libx262_encoder_deps="libx262"
2916 libx264_encoder_deps="libx264"
2917 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2918 libx264rgb_encoder_select="libx264_encoder"
2919 libx265_encoder_deps="libx265"
2920 libxavs_encoder_deps="libxavs"
2921 libxvid_encoder_deps="libxvid"
2922 libzvbi_teletext_decoder_deps="libzvbi"
2923 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2924 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2925 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2926 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2927 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2928
2929 # demuxers / muxers
2930 ac3_demuxer_select="ac3_parser"
2931 aiff_muxer_select="iso_media"
2932 asf_demuxer_select="riffdec"
2933 asf_o_demuxer_select="riffdec"
2934 asf_muxer_select="riffenc"
2935 asf_stream_muxer_select="asf_muxer"
2936 avi_demuxer_select="iso_media riffdec exif"
2937 avi_muxer_select="riffenc"
2938 caf_demuxer_select="iso_media riffdec"
2939 caf_muxer_select="iso_media"
2940 dash_muxer_select="mp4_muxer"
2941 dirac_demuxer_select="dirac_parser"
2942 dts_demuxer_select="dca_parser"
2943 dtshd_demuxer_select="dca_parser"
2944 dv_demuxer_select="dvprofile"
2945 dv_muxer_select="dvprofile"
2946 dxa_demuxer_select="riffdec"
2947 eac3_demuxer_select="ac3_parser"
2948 f4v_muxer_select="mov_muxer"
2949 fifo_muxer_deps="threads"
2950 flac_demuxer_select="flac_parser"
2951 hds_muxer_select="flv_muxer"
2952 hls_muxer_select="mpegts_muxer"
2953 image2_alias_pix_demuxer_select="image2_demuxer"
2954 image2_brender_pix_demuxer_select="image2_demuxer"
2955 ipod_muxer_select="mov_muxer"
2956 ismv_muxer_select="mov_muxer"
2957 matroska_audio_muxer_select="matroska_muxer"
2958 matroska_demuxer_select="iso_media riffdec"
2959 matroska_demuxer_suggest="bzlib lzo zlib"
2960 matroska_muxer_select="iso_media riffenc"
2961 mmf_muxer_select="riffenc"
2962 mov_demuxer_select="iso_media riffdec"
2963 mov_demuxer_suggest="zlib"
2964 mov_muxer_select="iso_media riffenc rtpenc_chain"
2965 mp3_demuxer_select="mpegaudio_parser"
2966 mp3_muxer_select="mpegaudioheader"
2967 mp4_muxer_select="mov_muxer"
2968 mpegts_demuxer_select="iso_media"
2969 mpegts_muxer_select="adts_muxer latm_muxer"
2970 mpegtsraw_demuxer_select="mpegts_demuxer"
2971 mxf_d10_muxer_select="mxf_muxer"
2972 mxf_opatom_muxer_select="mxf_muxer"
2973 nut_muxer_select="riffenc"
2974 nuv_demuxer_select="riffdec"
2975 oga_muxer_select="ogg_muxer"
2976 ogg_demuxer_select="dirac_parse"
2977 ogv_muxer_select="ogg_muxer"
2978 opus_muxer_select="ogg_muxer"
2979 psp_muxer_select="mov_muxer"
2980 rtp_demuxer_select="sdp_demuxer"
2981 rtp_muxer_select="golomb"
2982 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2983 rtsp_demuxer_select="http_protocol rtpdec"
2984 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2985 sap_demuxer_select="sdp_demuxer"
2986 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2987 sdp_demuxer_select="rtpdec"
2988 smoothstreaming_muxer_select="ismv_muxer"
2989 spdif_muxer_select="aac_parser"
2990 spx_muxer_select="ogg_muxer"
2991 swf_demuxer_suggest="zlib"
2992 tak_demuxer_select="tak_parser"
2993 tg2_muxer_select="mov_muxer"
2994 tgp_muxer_select="mov_muxer"
2995 vobsub_demuxer_select="mpegps_demuxer"
2996 w64_demuxer_select="wav_demuxer"
2997 w64_muxer_select="wav_muxer"
2998 wav_demuxer_select="riffdec"
2999 wav_muxer_select="riffenc"
3000 webm_muxer_select="iso_media riffenc"
3001 webm_dash_manifest_demuxer_select="matroska_demuxer"
3002 wtv_demuxer_select="mpegts_demuxer riffdec"
3003 wtv_muxer_select="mpegts_muxer riffenc"
3004 xmv_demuxer_select="riffdec"
3005 xwma_demuxer_select="riffdec"
3006
3007 # indevs / outdevs
3008 alsa_indev_deps="alsa"
3009 alsa_outdev_deps="alsa"
3010 avfoundation_indev_deps="pthreads"
3011 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3012 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3013 caca_outdev_deps="libcaca"
3014 decklink_indev_deps="decklink threads"
3015 decklink_indev_extralibs="-lstdc++"
3016 decklink_outdev_deps="decklink threads"
3017 decklink_outdev_extralibs="-lstdc++"
3018 libndi_newtek_indev_deps="libndi_newtek"
3019 libndi_newtek_indev_extralibs="-lndi"
3020 libndi_newtek_outdev_deps="libndi_newtek"
3021 libndi_newtek_outdev_extralibs="-lndi"
3022 dshow_indev_deps="IBaseFilter"
3023 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3024 dv1394_indev_deps="dv1394"
3025 dv1394_indev_select="dv_demuxer"
3026 fbdev_indev_deps="linux_fb_h"
3027 fbdev_outdev_deps="linux_fb_h"
3028 gdigrab_indev_deps="CreateDIBSection"
3029 gdigrab_indev_extralibs="-lgdi32"
3030 gdigrab_indev_select="bmp_decoder"
3031 iec61883_indev_deps="libiec61883"
3032 jack_indev_deps="jack"
3033 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3034 lavfi_indev_deps="avfilter"
3035 libcdio_indev_deps="libcdio"
3036 libdc1394_indev_deps="libdc1394"
3037 libv4l2_indev_deps="libv4l2"
3038 openal_indev_deps="openal"
3039 opengl_outdev_deps="opengl"
3040 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3041 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3042 pulse_indev_deps="libpulse"
3043 pulse_outdev_deps="libpulse"
3044 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3045 qtkit_indev_select="qtkit"
3046 sdl2_outdev_deps="sdl2"
3047 sndio_indev_deps="sndio"
3048 sndio_outdev_deps="sndio"
3049 v4l_indev_deps="linux_videodev_h"
3050 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3051 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3052 vfwcap_indev_deps="vfw32 vfwcap_defines"
3053 xcbgrab_indev_deps="libxcb"
3054 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3055 xv_outdev_extralibs="-lXv -lX11 -lXext"
3056
3057 # protocols
3058 async_protocol_deps="threads"
3059 bluray_protocol_deps="libbluray"
3060 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3061 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3062 ffrtmpcrypt_protocol_select="tcp_protocol"
3063 ffrtmphttp_protocol_deps="!librtmp_protocol"
3064 ffrtmphttp_protocol_select="http_protocol"
3065 ftp_protocol_select="tcp_protocol"
3066 gopher_protocol_select="network"
3067 http_protocol_select="tcp_protocol"
3068 httpproxy_protocol_select="tcp_protocol"
3069 https_protocol_select="tls_protocol"
3070 icecast_protocol_select="http_protocol"
3071 librtmp_protocol_deps="librtmp"
3072 librtmpe_protocol_deps="librtmp"
3073 librtmps_protocol_deps="librtmp"
3074 librtmpt_protocol_deps="librtmp"
3075 librtmpte_protocol_deps="librtmp"
3076 libsmbclient_protocol_deps="libsmbclient gplv3"
3077 libssh_protocol_deps="libssh"
3078 mmsh_protocol_select="http_protocol"
3079 mmst_protocol_select="network"
3080 rtmp_protocol_deps="!librtmp_protocol"
3081 rtmp_protocol_select="tcp_protocol"
3082 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3083 rtmps_protocol_deps="!librtmp_protocol"
3084 rtmps_protocol_select="tls_protocol"
3085 rtmpt_protocol_select="ffrtmphttp_protocol"
3086 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3087 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3088 rtp_protocol_select="udp_protocol"
3089 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3090 sctp_protocol_select="network"
3091 srtp_protocol_select="rtp_protocol srtp"
3092 tcp_protocol_select="network"
3093 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3094 tls_gnutls_protocol_select="tcp_protocol"
3095 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3096 tls_openssl_protocol_select="tcp_protocol"
3097 tls_schannel_protocol_deps="schannel"
3098 tls_schannel_protocol_select="tcp_protocol"
3099 tls_securetransport_protocol_deps="securetransport"
3100 tls_securetransport_protocol_select="tcp_protocol"
3101 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3102 udp_protocol_select="network"
3103 udplite_protocol_select="network"
3104 unix_protocol_deps="sys_un_h"
3105 unix_protocol_select="network"
3106
3107 # filters
3108 afftfilt_filter_deps="avcodec"
3109 afftfilt_filter_select="fft"
3110 afir_filter_deps="avcodec"
3111 afir_filter_select="fft"
3112 amovie_filter_deps="avcodec avformat"
3113 aresample_filter_deps="swresample"
3114 ass_filter_deps="libass"
3115 atempo_filter_deps="avcodec"
3116 atempo_filter_select="rdft"
3117 azmq_filter_deps="libzmq"
3118 blackframe_filter_deps="gpl"
3119 boxblur_filter_deps="gpl"
3120 bs2b_filter_deps="libbs2b"
3121 colormatrix_filter_deps="gpl"
3122 cover_rect_filter_deps="avcodec avformat gpl"
3123 cropdetect_filter_deps="gpl"
3124 deinterlace_qsv_filter_deps="libmfx"
3125 deinterlace_vaapi_filter_deps="vaapi"
3126 delogo_filter_deps="gpl"
3127 deshake_filter_select="pixelutils"
3128 drawtext_filter_deps="libfreetype"
3129 elbg_filter_deps="avcodec"
3130 eq_filter_deps="gpl"
3131 fftfilt_filter_deps="avcodec"
3132 fftfilt_filter_select="rdft"
3133 find_rect_filter_deps="avcodec avformat gpl"
3134 firequalizer_filter_deps="avcodec"
3135 firequalizer_filter_select="rdft"
3136 flite_filter_deps="libflite"
3137 framerate_filter_select="pixelutils"
3138 frei0r_filter_deps="frei0r dlopen"
3139 frei0r_src_filter_deps="frei0r dlopen"
3140 fspp_filter_deps="gpl"
3141 geq_filter_deps="gpl"
3142 histeq_filter_deps="gpl"
3143 hqdn3d_filter_deps="gpl"
3144 interlace_filter_deps="gpl"
3145 kerndeint_filter_deps="gpl"
3146 ladspa_filter_deps="ladspa dlopen"
3147 mcdeint_filter_deps="avcodec gpl"
3148 movie_filter_deps="avcodec avformat"
3149 mpdecimate_filter_deps="gpl"
3150 mpdecimate_filter_select="pixelutils"
3151 mptestsrc_filter_deps="gpl"
3152 negate_filter_deps="lut_filter"
3153 nnedi_filter_deps="gpl"
3154 ocr_filter_deps="libtesseract"
3155 ocv_filter_deps="libopencv"
3156 owdenoise_filter_deps="gpl"
3157 pan_filter_deps="swresample"
3158 perspective_filter_deps="gpl"
3159 phase_filter_deps="gpl"
3160 pp7_filter_deps="gpl"
3161 pp_filter_deps="gpl postproc"
3162 pullup_filter_deps="gpl"
3163 removelogo_filter_deps="avcodec avformat swscale"
3164 repeatfields_filter_deps="gpl"
3165 resample_filter_deps="avresample"
3166 rubberband_filter_deps="librubberband"
3167 sab_filter_deps="gpl swscale"
3168 scale2ref_filter_deps="swscale"
3169 scale_filter_deps="swscale"
3170 scale_qsv_filter_deps="libmfx"
3171 select_filter_select="pixelutils"
3172 showcqt_filter_deps="avcodec avformat swscale"
3173 showcqt_filter_select="fft"
3174 showfreqs_filter_deps="avcodec"
3175 showfreqs_filter_select="fft"
3176 showspectrum_filter_deps="avcodec"
3177 showspectrum_filter_select="fft"
3178 showspectrumpic_filter_deps="avcodec"
3179 showspectrumpic_filter_select="fft"
3180 signature_filter_deps="gpl avcodec avformat"
3181 smartblur_filter_deps="gpl swscale"
3182 sofalizer_filter_deps="libmysofa avcodec"
3183 sofalizer_filter_select="fft"
3184 spectrumsynth_filter_deps="avcodec"
3185 spectrumsynth_filter_select="fft"
3186 spp_filter_deps="gpl avcodec"
3187 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3188 stereo3d_filter_deps="gpl"
3189 subtitles_filter_deps="avformat avcodec libass"
3190 super2xsai_filter_deps="gpl"
3191 pixfmts_super2xsai_test_deps="super2xsai_filter"
3192 tinterlace_filter_deps="gpl"
3193 tinterlace_merge_test_deps="tinterlace_filter"
3194 tinterlace_pad_test_deps="tinterlace_filter"
3195 uspp_filter_deps="gpl avcodec"
3196 vaguedenoiser_filter_deps="gpl"
3197 vidstabdetect_filter_deps="libvidstab"
3198 vidstabtransform_filter_deps="libvidstab"
3199 libvmaf_filter_deps="libvmaf"
3200 zmq_filter_deps="libzmq"
3201 zoompan_filter_deps="swscale"
3202 zscale_filter_deps="libzimg"
3203 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3204
3205 # examples
3206 avio_dir_cmd_deps="avformat avutil"
3207 avio_reading_deps="avformat avcodec avutil"
3208 decode_audio_example_deps="avcodec avutil"
3209 decode_video_example_deps="avcodec avutil"
3210 demuxing_decoding_example_deps="avcodec avformat avutil"
3211 encode_audio_example_deps="avcodec avutil"
3212 encode_video_example_deps="avcodec avutil"
3213 extract_mvs_example_deps="avcodec avformat avutil"
3214 filter_audio_example_deps="avfilter avutil"
3215 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3216 filtering_video_example_deps="avfilter avcodec avformat avutil"
3217 http_multiclient_example_deps="avformat avutil fork"
3218 hw_decode_example_deps="avcodec avformat avutil"
3219 metadata_example_deps="avformat avutil"
3220 muxing_example_deps="avcodec avformat avutil swscale"
3221 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3222 remuxing_example_deps="avcodec avformat avutil"
3223 resampling_audio_example_deps="avutil swresample"
3224 scaling_video_example_deps="avutil swscale"
3225 transcode_aac_example_deps="avcodec avformat swresample"
3226 transcoding_example_deps="avfilter avcodec avformat avutil"
3227
3228 # libraries, in linking order
3229 avcodec_deps="avutil"
3230 avcodec_select="null_bsf"
3231 avdevice_deps="avformat avcodec avutil"
3232 avfilter_deps="avutil"
3233 avformat_deps="avcodec avutil"
3234 avresample_deps="avutil"
3235 postproc_deps="avutil gpl"
3236 swresample_deps="avutil"
3237 swscale_deps="avutil"
3238
3239 # programs
3240 ffmpeg_deps="avcodec avfilter avformat swresample"
3241 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3242                null_filter
3243                trim_filter"
3244 ffplay_deps="avcodec avformat swscale swresample sdl2"
3245 ffplay_extralibs='$sdl2_extralibs'
3246 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3247 ffprobe_deps="avcodec avformat"
3248 ffserver_deps="avformat fork sarestart"
3249 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3250
3251 # documentation
3252 podpages_deps="perl"
3253 manpages_deps="perl pod2man"
3254 htmlpages_deps="perl"
3255 htmlpages_deps_any="makeinfo_html texi2html"
3256 txtpages_deps="perl makeinfo"
3257 doc_deps_any="manpages htmlpages podpages txtpages"
3258
3259 # default parameters
3260
3261 logfile="ffbuild/config.log"
3262
3263 # installation paths
3264 prefix_default="/usr/local"
3265 bindir_default='${prefix}/bin'
3266 datadir_default='${prefix}/share/ffmpeg'
3267 docdir_default='${prefix}/share/doc/ffmpeg'
3268 incdir_default='${prefix}/include'
3269 libdir_default='${prefix}/lib'
3270 mandir_default='${prefix}/share/man'
3271
3272 # toolchain
3273 ar_default="ar"
3274 cc_default="gcc"
3275 cxx_default="g++"
3276 host_cc_default="gcc"
3277 doxygen_default="doxygen"
3278 install="install"
3279 ln_s_default="ln -s -f"
3280 nm_default="nm -g"
3281 pkg_config_default=pkg-config
3282 ranlib_default="ranlib"
3283 strip_default="strip"
3284 version_script='--version-script'
3285 x86asmexe_default="nasm"
3286 windres_default="windres"
3287 nvcc_default="nvcc"
3288 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3289
3290 # OS
3291 target_os_default=$(tolower $(uname -s))
3292 host_os=$target_os_default
3293
3294 # machine
3295 if test "$target_os_default" = aix; then
3296     arch_default=$(uname -p)
3297     strip_default="strip -X32_64"
3298 else
3299     arch_default=$(uname -m)
3300 fi
3301 cpu="generic"
3302 intrinsics="none"
3303
3304 # configurable options
3305 enable $PROGRAM_LIST
3306 enable $DOCUMENT_LIST
3307 enable $EXAMPLE_LIST
3308 enable $(filter_out avresample $LIBRARY_LIST)
3309 enable stripping
3310
3311 enable asm
3312 enable debug
3313 enable doc
3314 enable faan faandct faanidct
3315 enable optimizations
3316 enable runtime_cpudetect
3317 enable safe_bitstream_reader
3318 enable static
3319 enable swscale_alpha
3320 enable valgrind_backtrace
3321
3322 sws_max_filter_size_default=256
3323 set_default sws_max_filter_size
3324
3325 # build settings
3326 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3327 LIBPREF="lib"
3328 LIBSUF=".a"
3329 FULLNAME='$(NAME)$(BUILDSUF)'
3330 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3331 SLIBPREF="lib"
3332 SLIBSUF=".so"
3333 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3334 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3335 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3336 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3337 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3338 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3339 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3340
3341 asflags_filter=echo
3342 cflags_filter=echo
3343 ldflags_filter=echo
3344
3345 AS_C='-c'
3346 AS_O='-o $@'
3347 CC_C='-c'
3348 CC_E='-E -o $@'
3349 CC_O='-o $@'
3350 CXX_C='-c'
3351 CXX_O='-o $@'
3352 OBJCC_C='-c'
3353 OBJCC_E='-E -o $@'
3354 OBJCC_O='-o $@'
3355 X86ASM_O='-o $@'
3356 LD_O='-o $@'
3357 LD_LIB='-l%'
3358 LD_PATH='-L'
3359 HOSTCC_C='-c'
3360 HOSTCC_E='-E -o $@'
3361 HOSTCC_O='-o $@'
3362 HOSTLD_O='-o $@'
3363 NVCC_C='-c'
3364 NVCC_O='-o $@'
3365
3366 host_extralibs='-lm'
3367 host_cflags_filter=echo
3368 host_ldflags_filter=echo
3369
3370 target_path='$(CURDIR)'
3371
3372 # since the object filename is not given with the -MM flag, the compiler
3373 # is only able to print the basename, and we must add the path ourselves
3374 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3375 DEPFLAGS='-MM'
3376
3377 mkdir -p ffbuild
3378
3379 # find source path
3380 if test -f configure; then
3381     source_path=.
3382 else
3383     source_path=$(cd $(dirname "$0"); pwd)
3384     case "$source_path" in
3385         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3386     esac
3387     test -e "$source_path/config.h" &&
3388         die "Out of tree builds are impossible with config.h in source dir."
3389 fi
3390
3391 for v in "$@"; do
3392     r=${v#*=}
3393     l=${v%"$r"}
3394     r=$(sh_quote "$r")
3395     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3396 done
3397
3398 find_things(){
3399     thing=$1
3400     pattern=$2
3401     file=$source_path/$3
3402     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3403 }
3404
3405 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3406 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3407 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3408 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3409 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3410 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3411 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3412 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3413 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3414
3415 find_things_extern(){
3416     thing=$1
3417     pattern=$2
3418     file=$source_path/$3
3419     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3420 }
3421
3422 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3423 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3424
3425 ALL_COMPONENTS="
3426     $BSF_LIST
3427     $DECODER_LIST
3428     $DEMUXER_LIST
3429     $ENCODER_LIST
3430     $FILTER_LIST
3431     $HWACCEL_LIST
3432     $INDEV_LIST
3433     $MUXER_LIST
3434     $OUTDEV_LIST
3435     $PARSER_LIST
3436     $PROTOCOL_LIST
3437 "
3438
3439 for n in $COMPONENT_LIST; do
3440     v=$(toupper ${n%s})_LIST
3441     eval enable \$$v
3442     eval ${n}_if_any="\$$v"
3443 done
3444
3445 enable $ARCH_EXT_LIST
3446
3447 die_unknown(){
3448     echo "Unknown option \"$1\"."
3449     echo "See $0 --help for available options."
3450     exit 1
3451 }
3452
3453 print_in_columns() {
3454     cols=$(expr $ncols / 24)
3455     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3456 }
3457
3458 show_list() {
3459     suffix=_$1
3460     shift
3461     echo $* | sed s/$suffix//g | print_in_columns
3462     exit 0
3463 }
3464
3465 rand_list(){
3466     IFS=', '
3467     set -- $*
3468     unset IFS
3469     for thing; do
3470         comp=${thing%:*}
3471         prob=${thing#$comp}
3472         prob=${prob#:}
3473         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3474         echo "prob ${prob:-0.5}"
3475         printf '%s\n' $comp
3476     done
3477 }
3478
3479 do_random(){
3480     action=$1
3481     shift
3482     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3483     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3484 }
3485
3486 for opt do
3487     optval="${opt#*=}"
3488     case "$opt" in
3489         --extra-ldflags=*)
3490             add_ldflags $optval
3491         ;;
3492         --extra-ldexeflags=*)
3493             add_ldexeflags $optval
3494         ;;
3495         --extra-ldlibflags=*)
3496             add_ldlibflags $optval
3497         ;;
3498         --extra-libs=*)
3499             add_extralibs $optval
3500         ;;
3501         --disable-devices)
3502             disable $INDEV_LIST $OUTDEV_LIST
3503         ;;
3504         --enable-debug=*)
3505             debuglevel="$optval"
3506         ;;
3507         --disable-programs)
3508             disable $PROGRAM_LIST
3509         ;;
3510         --disable-everything)
3511             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3512         ;;
3513         --disable-all)
3514             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3515             disable $LIBRARY_LIST $PROGRAM_LIST doc
3516             enable avutil
3517         ;;
3518         --enable-random|--disable-random)
3519             action=${opt%%-random}
3520             do_random ${action#--} $COMPONENT_LIST
3521         ;;
3522         --enable-random=*|--disable-random=*)
3523             action=${opt%%-random=*}
3524             do_random ${action#--} $optval
3525         ;;
3526         --enable-sdl)
3527             enable sdl2
3528         ;;
3529         --enable-*=*|--disable-*=*)
3530             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3531             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3532             eval list=\$$(toupper $thing)_LIST
3533             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3534             list=$(filter "$name" $list)
3535             [ "$list" = "" ] && warn "Option $opt did not match anything"
3536             $action $list
3537         ;;
3538         --enable-yasm|--disable-yasm)
3539             warn "The ${opt} option is only provided for compatibility and will be\n"\
3540                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3541             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3542         ;;
3543         --yasmexe=*)
3544             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3545                  "removed in the future. Use --x86asmexe instead."
3546             x86asmexe="$optval"
3547         ;;
3548         --enable-?*|--disable-?*)
3549             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3550             if is_in $option $COMPONENT_LIST; then
3551                 test $action = disable && action=unset
3552                 eval $action \$$(toupper ${option%s})_LIST
3553             elif is_in $option $CMDLINE_SELECT; then
3554                 $action $option
3555             else
3556                 die_unknown $opt
3557             fi
3558         ;;
3559         --list-*)
3560             NAME="${opt#--list-}"
3561             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3562             NAME=${NAME%s}
3563             eval show_list $NAME \$$(toupper $NAME)_LIST
3564         ;;
3565         --help|-h) show_help
3566         ;;
3567         --quiet|-q) quiet=yes
3568         ;;
3569         --fatal-warnings) enable fatal_warnings
3570         ;;
3571         --libfuzzer=*)
3572             libfuzzer_path="$optval"
3573         ;;
3574         *)
3575             optname="${opt%%=*}"
3576             optname="${optname#--}"
3577             optname=$(echo "$optname" | sed 's/-/_/g')
3578             if is_in $optname $CMDLINE_SET; then
3579                 eval $optname='$optval'
3580             elif is_in $optname $CMDLINE_APPEND; then
3581                 append $optname "$optval"
3582             else
3583                 die_unknown $opt
3584             fi
3585         ;;
3586     esac
3587 done
3588
3589 for e in $env; do
3590     eval "export $e"
3591 done
3592
3593 # Mark specifically enabled, but normally autodetected libraries as requested.
3594 for lib in $AUTODETECT_LIBS; do
3595     enabled $lib && request $lib
3596 done
3597
3598 # Enable platform codecs by default.
3599 enable_weak audiotoolbox
3600
3601 # Enable hwaccels by default.
3602 enable_weak crystalhd d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3603 enable_weak xlib libxcb libxcb_shm libxcb_shape libxcb_xfixes
3604
3605 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3606
3607 # Enable compression/decompression libraries by default
3608 enable_weak zlib bzlib lzma
3609
3610 enable_weak iconv
3611 enable_weak securetransport schannel
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