Merge commit 'fca9ca539c8c6e4fe0072486c7e0479a08a15e7c'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
189
190 External library support:
191
192   Using any of the following switches will allow FFmpeg to link to the
193   corresponding external library. All the components depending on that library
194   will become enabled, if all their other dependencies are met and they are not
195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
196   libwavpack and allow the libwavpack encoder to be built, unless it is
197   specifically disabled with --disable-encoder=libwavpack.
198
199   Note that only the system libraries are auto-detected. All the other external
200   libraries must be explicitly enabled.
201
202   Also note that the following help text describes the purpose of the libraries
203   themselves, not all their features will necessarily be usable by FFmpeg.
204
205   --disable-alsa           disable ALSA support [autodetect]
206   --disable-appkit         disable Apple AppKit framework [autodetect]
207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
208   --enable-avisynth        enable reading of AviSynth script files [no]
209   --disable-bzlib          disable bzlib [autodetect]
210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
212   --enable-frei0r          enable frei0r video filtering [no]
213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
214                            if openssl, librtmp or gmp is not used [no]
215   --enable-gmp             enable gmp, needed for rtmp(t)e support
216                            if openssl or librtmp is not used [no]
217   --enable-gnutls          enable gnutls, needed for https support
218                            if openssl is not used [no]
219   --disable-iconv          disable iconv [autodetect]
220   --enable-jni             enable JNI support [no]
221   --enable-ladspa          enable LADSPA audio filtering [no]
222   --enable-libass          enable libass subtitles rendering,
223                            needed for subtitles and ass filter [no]
224   --enable-libbluray       enable BluRay reading using libbluray [no]
225   --enable-libbs2b         enable bs2b DSP library [no]
226   --enable-libcaca         enable textual display using libcaca [no]
227   --enable-libcelt         enable CELT decoding via libcelt [no]
228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
229   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libssh          enable SFTP protocol via libssh [no]
261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
262   --enable-libtheora       enable Theora encoding via libtheora [no]
263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
265   --enable-libvidstab      enable video stabilization using vid.stab [no]
266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
269                            native implementation exists [no]
270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
272   --enable-libwebp         enable WebP encoding via libwebp [no]
273   --enable-libx264         enable H.264 encoding via x264 [no]
274   --enable-libx265         enable HEVC encoding via x265 [no]
275   --enable-libxavs         enable AVS encoding via xavs [no]
276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
280   --enable-libxvid         enable Xvid encoding via xvidcore,
281                            native MPEG-4/Xvid encoder exists [no]
282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
284   --enable-libzmq          enable message passing via libzmq [no]
285   --enable-libzvbi         enable teletext support via libzvbi [no]
286   --disable-lzma           disable lzma [autodetect]
287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
289   --enable-mediacodec      enable Android MediaCodec support [no]
290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
291   --enable-openal          enable OpenAL 1.1 capture support [no]
292   --enable-opencl          enable OpenCL code
293   --enable-opengl          enable OpenGL rendering [no]
294   --enable-openssl         enable openssl, needed for https support
295                            if gnutls is not used [no]
296   --disable-sndio          disable sndio support [autodetect]
297   --disable-schannel       disable SChannel SSP, needed for TLS support on
298                            Windows if openssl and gnutls are not used [autodetect]
299   --disable-sdl2           disable sdl2 [autodetect]
300   --disable-securetransport disable Secure Transport, needed for TLS support
301                            on OSX if openssl and gnutls are not used [autodetect]
302   --disable-xlib           disable xlib [autodetect]
303   --disable-zlib           disable zlib [autodetect]
304
305   The following libraries provide various hardware acceleration features:
306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
312   --enable-libdrm          enable DRM code (Linux) [no]
313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
316   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
317   --disable-nvenc          disable Nvidia video encoding code [autodetect]
318   --enable-omx             enable OpenMAX IL code [no]
319   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
320   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
321   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
322   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
323   --disable-videotoolbox   disable VideoToolbox code [autodetect]
324
325 Toolchain options:
326   --arch=ARCH              select architecture [$arch]
327   --cpu=CPU                select the minimum required CPU (affects
328                            instruction selection, may crash on older CPUs)
329   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
330   --progs-suffix=SUFFIX    program name suffix []
331   --enable-cross-compile   assume a cross-compiler is used
332   --sysroot=PATH           root of cross-build tree
333   --sysinclude=PATH        location of cross-build system headers
334   --target-os=OS           compiler targets OS [$target_os]
335   --target-exec=CMD        command to run executables on target
336   --target-path=DIR        path to view of build directory on target
337   --target-samples=DIR     path to samples directory on target
338   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
339   --toolchain=NAME         set tool defaults according to NAME
340   --nm=NM                  use nm tool NM [$nm_default]
341   --ar=AR                  use archive tool AR [$ar_default]
342   --as=AS                  use assembler AS [$as_default]
343   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
344   --strip=STRIP            use strip tool STRIP [$strip_default]
345   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
346   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
347   --cc=CC                  use C compiler CC [$cc_default]
348   --cxx=CXX                use C compiler CXX [$cxx_default]
349   --objcc=OCC              use ObjC compiler OCC [$cc_default]
350   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
351   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
352   --ld=LD                  use linker LD [$ld_default]
353   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
354   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
355   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
356   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
357   --host-cc=HOSTCC         use host C compiler HOSTCC
358   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
359   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
360   --host-ld=HOSTLD         use host linker HOSTLD
361   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
362   --host-libs=HLIBS        use libs HLIBS when linking for host
363   --host-os=OS             compiler host OS [$target_os]
364   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
365   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
366   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
367   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
368   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
369   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
370   --extra-libs=ELIBS       add ELIBS [$ELIBS]
371   --extra-version=STRING   version string suffix []
372   --optflags=OPTFLAGS      override optimization-related compiler flags
373   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
374   --build-suffix=SUFFIX    library name suffix []
375   --enable-pic             build position-independent code
376   --enable-thumb           compile for Thumb instruction set
377   --enable-lto             use link-time optimization
378   --env="ENV=override"     override the environment variables
379
380 Advanced options (experts only):
381   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
382   --custom-allocator=NAME  use a supported custom allocator
383   --disable-symver         disable symbol versioning
384   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
385   --disable-safe-bitstream-reader
386                            disable buffer boundary checking in bitreaders
387                            (faster, but may crash)
388   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
389
390 Optimization options (experts only):
391   --disable-asm            disable all assembly optimizations
392   --disable-altivec        disable AltiVec optimizations
393   --disable-vsx            disable VSX optimizations
394   --disable-power8         disable POWER8 optimizations
395   --disable-amd3dnow       disable 3DNow! optimizations
396   --disable-amd3dnowext    disable 3DNow! extended optimizations
397   --disable-mmx            disable MMX optimizations
398   --disable-mmxext         disable MMXEXT optimizations
399   --disable-sse            disable SSE optimizations
400   --disable-sse2           disable SSE2 optimizations
401   --disable-sse3           disable SSE3 optimizations
402   --disable-ssse3          disable SSSE3 optimizations
403   --disable-sse4           disable SSE4 optimizations
404   --disable-sse42          disable SSE4.2 optimizations
405   --disable-avx            disable AVX optimizations
406   --disable-xop            disable XOP optimizations
407   --disable-fma3           disable FMA3 optimizations
408   --disable-fma4           disable FMA4 optimizations
409   --disable-avx2           disable AVX2 optimizations
410   --disable-aesni          disable AESNI optimizations
411   --disable-armv5te        disable armv5te optimizations
412   --disable-armv6          disable armv6 optimizations
413   --disable-armv6t2        disable armv6t2 optimizations
414   --disable-vfp            disable VFP optimizations
415   --disable-neon           disable NEON optimizations
416   --disable-inline-asm     disable use of inline assembly
417   --disable-x86asm         disable use of standalone x86 assembly
418   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
419   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
420   --disable-msa            disable MSA optimizations
421   --disable-mipsfpu        disable floating point MIPS optimizations
422   --disable-mmi            disable Loongson SIMD optimizations
423   --disable-fast-unaligned consider unaligned accesses slow
424
425 Developer options (useful when working on FFmpeg itself):
426   --disable-debug          disable debugging symbols
427   --enable-debug=LEVEL     set the debug level [$debuglevel]
428   --disable-optimizations  disable compiler optimizations
429   --enable-extra-warnings  enable more compiler warnings
430   --disable-stripping      disable stripping of executables and shared libraries
431   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
432                            2 causes a slowdown at runtime.
433   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
434   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
435                            leaks and errors, using the specified valgrind binary.
436                            Cannot be combined with --target-exec
437   --enable-ftrapv          Trap arithmetic overflows
438   --samples=PATH           location of test samples for FATE, if not set use
439                            \$FATE_SAMPLES at make invocation time.
440   --enable-neon-clobber-test check NEON registers for clobbering (should be
441                            used only for debugging purposes)
442   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
443                            should be used only for debugging purposes)
444   --enable-random          randomly enable/disable components
445   --disable-random
446   --enable-random=LIST     randomly enable/disable specific components or
447   --disable-random=LIST    component groups. LIST is a comma-separated list
448                            of NAME[:PROB] entries where NAME is a component
449                            (group) and PROB the probability associated with
450                            NAME (default 0.5).
451   --random-seed=VALUE      seed value for --enable/disable-random
452   --disable-valgrind-backtrace do not print a backtrace under Valgrind
453                            (only applies to --disable-optimizations builds)
454   --enable-osfuzz          Enable building fuzzer tool
455   --libfuzzer=PATH         path to libfuzzer
456   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
457                            in the name) of tests whose result is ignored
458   --enable-linux-perf      enable Linux Performance Monitor API
459
460 NOTE: Object files are built at the place where configure is launched.
461 EOF
462   exit 0
463 }
464
465 quotes='""'
466 if test -t 1 && which tput >/dev/null 2>&1; then
467     ncolors=$(tput colors)
468     if test -n "$ncolors" && test $ncolors -ge 8; then
469         bold_color=$(tput bold)
470         warn_color=$(tput setaf 3)
471         error_color=$(tput setaf 1)
472         reset_color=$(tput sgr0)
473     fi
474     # 72 used instead of 80 since that's the default of pr
475     ncols=$(tput cols)
476 fi
477 : ${ncols:=72}
478
479 log(){
480     echo "$@" >> $logfile
481 }
482
483 log_file(){
484     log BEGIN $1
485     pr -n -t $1 >> $logfile
486     log END $1
487 }
488
489 warn(){
490     log "WARNING: $*"
491     WARNINGS="${WARNINGS}WARNING: $*\n"
492 }
493
494 die(){
495     log "$@"
496     echo "$error_color$bold_color$@$reset_color"
497     cat <<EOF
498
499 If you think configure made a mistake, make sure you are using the latest
500 version from Git.  If the latest version fails, report the problem to the
501 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
502 EOF
503     if disabled logging; then
504         cat <<EOF
505 Rerun configure with logging enabled (do not use --disable-logging), and
506 include the log this produces with your report.
507 EOF
508     else
509         cat <<EOF
510 Include the log file "$logfile" produced by configure as this will help
511 solve the problem.
512 EOF
513     fi
514     exit 1
515 }
516
517 # Avoid locale weirdness, besides we really just want to translate ASCII.
518 toupper(){
519     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
520 }
521
522 tolower(){
523     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
524 }
525
526 c_escape(){
527     echo "$*" | sed 's/["\\]/\\\0/g'
528 }
529
530 sh_quote(){
531     v=$(echo "$1" | sed "s/'/'\\\\''/g")
532     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
533     echo "$v"
534 }
535
536 cleanws(){
537     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
538 }
539
540 filter(){
541     pat=$1
542     shift
543     for v; do
544         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
545     done
546 }
547
548 filter_out(){
549     pat=$1
550     shift
551     for v; do
552         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
553     done
554 }
555
556 map(){
557     m=$1
558     shift
559     for v; do eval $m; done
560 }
561
562 add_suffix(){
563     suffix=$1
564     shift
565     for v; do echo ${v}${suffix}; done
566 }
567
568 set_all(){
569     value=$1
570     shift
571     for var in $*; do
572         eval $var=$value
573     done
574 }
575
576 set_weak(){
577     value=$1
578     shift
579     for var; do
580         eval : \${$var:=$value}
581     done
582 }
583
584 sanitize_var_name(){
585     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
586 }
587
588 set_sanitized(){
589     var=$1
590     shift
591     eval $(sanitize_var_name "$var")='$*'
592 }
593
594 get_sanitized(){
595     eval echo \$$(sanitize_var_name "$1")
596 }
597
598 pushvar(){
599     for pvar in $*; do
600         eval level=\${${pvar}_level:=0}
601         eval ${pvar}_${level}="\$$pvar"
602         eval ${pvar}_level=$(($level+1))
603     done
604 }
605
606 popvar(){
607     for pvar in $*; do
608         eval level=\${${pvar}_level:-0}
609         test $level = 0 && continue
610         eval level=$(($level-1))
611         eval $pvar="\${${pvar}_${level}}"
612         eval ${pvar}_level=$level
613         eval unset ${pvar}_${level}
614     done
615 }
616
617 request(){
618     for var in $*; do
619         eval ${var}_requested=yes
620         eval $var=
621     done
622 }
623
624 enable(){
625     set_all yes $*
626 }
627
628 disable(){
629     set_all no $*
630 }
631
632 enable_weak(){
633     set_weak yes $*
634 }
635
636 disable_weak(){
637     set_weak no $*
638 }
639
640 enable_sanitized(){
641     for var; do
642         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
643     done
644 }
645
646 disable_sanitized(){
647     for var; do
648         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
649     done
650 }
651
652 do_enable_deep(){
653     for var; do
654         enabled $var && continue
655         eval sel="\$${var}_select"
656         eval sgs="\$${var}_suggest"
657         pushvar var sgs
658         enable_deep $sel
659         popvar sgs
660         enable_deep_weak $sgs
661         popvar var
662     done
663 }
664
665 enable_deep(){
666     do_enable_deep $*
667     enable $*
668 }
669
670 enable_deep_weak(){
671     for var; do
672         disabled $var && continue
673         pushvar var
674         do_enable_deep $var
675         popvar var
676         enable_weak $var
677     done
678 }
679
680 requested(){
681     test "${1#!}" = "$1" && op='=' || op=!=
682     eval test "x\$${1#!}_requested" $op "xyes"
683 }
684
685 enabled(){
686     test "${1#!}" = "$1" && op='=' || op=!=
687     eval test "x\$${1#!}" $op "xyes"
688 }
689
690 disabled(){
691     test "${1#!}" = "$1" && op='=' || op=!=
692     eval test "x\$${1#!}" $op "xno"
693 }
694
695 enabled_all(){
696     for opt; do
697         enabled $opt || return 1
698     done
699 }
700
701 disabled_all(){
702     for opt; do
703         disabled $opt || return 1
704     done
705 }
706
707 enabled_any(){
708     for opt; do
709         enabled $opt && return 0
710     done
711 }
712
713 disabled_any(){
714     for opt; do
715         disabled $opt && return 0
716     done
717     return 1
718 }
719
720 set_default(){
721     for opt; do
722         eval : \${$opt:=\$${opt}_default}
723     done
724 }
725
726 is_in(){
727     value=$1
728     shift
729     for var in $*; do
730         [ $var = $value ] && return 0
731     done
732     return 1
733 }
734
735 check_deps(){
736     for cfg; do
737         enabled ${cfg}_checking && die "Circular dependency for $cfg."
738         disabled ${cfg}_checking && continue
739         enable ${cfg}_checking
740
741         eval dep_all="\$${cfg}_deps"
742         eval dep_any="\$${cfg}_deps_any"
743         eval dep_con="\$${cfg}_conflict"
744         eval dep_sel="\$${cfg}_select"
745         eval dep_sgs="\$${cfg}_suggest"
746         eval dep_ifa="\$${cfg}_if"
747         eval dep_ifn="\$${cfg}_if_any"
748
749         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
750         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
751         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
752
753         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
754         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
755         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
756         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
757         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
758         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
759
760         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
761
762         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
763             # filter out library deps, these do not belong in extralibs
764             is_in $dep $LIBRARY_LIST && continue
765             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
766         done
767
768         disable ${cfg}_checking
769     done
770 }
771
772 print_config(){
773     pfx=$1
774     files=$2
775     shift 2
776     map 'eval echo "$v \${$v:-no}"' "$@" |
777     awk "BEGIN { split(\"$files\", files) }
778         {
779             c = \"$pfx\" toupper(\$1);
780             v = \$2;
781             sub(/yes/, 1, v);
782             sub(/no/,  0, v);
783             for (f in files) {
784                 file = files[f];
785                 if (file ~ /\\.h\$/) {
786                     printf(\"#define %s %d\\n\", c, v) >>file;
787                 } else if (file ~ /\\.asm\$/) {
788                     printf(\"%%define %s %d\\n\", c, v) >>file;
789                 } else if (file ~ /\\.mak\$/) {
790                     n = -v ? \"\" : \"!\";
791                     printf(\"%s%s=yes\\n\", n, c) >>file;
792                 } else if (file ~ /\\.texi\$/) {
793                     pre = -v ? \"\" : \"@c \";
794                     yesno = \$2;
795                     c2 = tolower(c);
796                     gsub(/_/, \"-\", c2);
797                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
798                 }
799             }
800         }"
801 }
802
803 print_enabled(){
804     suf=$1
805     shift
806     for v; do
807         enabled $v && printf "%s\n" ${v%$suf}
808     done
809 }
810
811 append(){
812     var=$1
813     shift
814     eval "$var=\"\$$var $*\""
815 }
816
817 prepend(){
818     var=$1
819     shift
820     eval "$var=\"$* \$$var\""
821 }
822
823 unique(){
824     var=$1
825     uniq_list=""
826     for tok in $(eval echo \$$var); do
827         uniq_list="$(filter_out $tok $uniq_list) $tok"
828     done
829     eval "$var=\"${uniq_list}\""
830 }
831
832 resolve(){
833     var=$1
834     tmpvar=
835     for entry in $(eval echo \$$var); do
836         tmpvar="$tmpvar $(eval echo \$${entry})"
837     done
838     eval "$var=\"${tmpvar}\""
839 }
840
841 add_cppflags(){
842     append CPPFLAGS "$@"
843 }
844
845 add_cflags(){
846     append CFLAGS $($cflags_filter "$@")
847 }
848
849 add_cflags_headers(){
850     append CFLAGS_HEADERS $($cflags_filter "$@")
851 }
852
853 add_cxxflags(){
854     append CXXFLAGS $($cflags_filter "$@")
855 }
856
857 add_asflags(){
858     append ASFLAGS $($asflags_filter "$@")
859 }
860
861 add_objcflags(){
862     append OBJCFLAGS $($objcflags_filter "$@")
863 }
864
865 add_ldflags(){
866     append LDFLAGS $($ldflags_filter "$@")
867 }
868
869 add_ldexeflags(){
870     append LDEXEFLAGS $($ldflags_filter "$@")
871 }
872
873 add_ldsoflags(){
874     append LDSOFLAGS $($ldflags_filter "$@")
875 }
876
877 add_stripflags(){
878     append ASMSTRIPFLAGS "$@"
879 }
880
881 add_extralibs(){
882     prepend extralibs $($ldflags_filter "$@")
883 }
884
885 add_host_cppflags(){
886     append host_cppflags "$@"
887 }
888
889 add_host_cflags(){
890     append host_cflags $($host_cflags_filter "$@")
891 }
892
893 add_host_ldflags(){
894     append host_ldflags $($host_ldflags_filter "$@")
895 }
896
897 add_compat(){
898     append compat_objs $1
899     shift
900     map 'add_cppflags -D$v' "$@"
901 }
902
903 check_cmd(){
904     log "$@"
905     "$@" >> $logfile 2>&1
906 }
907
908 check_stat(){
909     log check_stat "$@"
910     stat "$1" >> $logfile 2>&1
911 }
912
913 cc_o(){
914     eval printf '%s\\n' $CC_O
915 }
916
917 cc_e(){
918     eval printf '%s\\n' $CC_E
919 }
920
921 check_cc(){
922     log check_cc "$@"
923     cat > $TMPC
924     log_file $TMPC
925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
926 }
927
928 check_cxx(){
929     log check_cxx "$@"
930     cat > $TMPCPP
931     log_file $TMPCPP
932     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
933 }
934
935 check_objcc(){
936     log check_objcc "$@"
937     cat > $TMPM
938     log_file $TMPM
939     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
940 }
941
942 check_cpp(){
943     log check_cpp "$@"
944     cat > $TMPC
945     log_file $TMPC
946     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
947 }
948
949 as_o(){
950     eval printf '%s\\n' $AS_O
951 }
952
953 check_as(){
954     log check_as "$@"
955     cat > $TMPS
956     log_file $TMPS
957     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
958 }
959
960 check_inline_asm(){
961     log check_inline_asm "$@"
962     name="$1"
963     code="$2"
964     shift 2
965     disable $name
966     check_cc "$@" <<EOF && enable $name
967 void foo(void){ __asm__ volatile($code); }
968 EOF
969 }
970
971 check_inline_asm_flags(){
972     log check_inline_asm_flags "$@"
973     name="$1"
974     code="$2"
975     flags=''
976     shift 2
977     while [ "$1" != "" ]; do
978       append flags $1
979       shift
980     done;
981     disable $name
982     cat > $TMPC <<EOF
983 void foo(void){ __asm__ volatile($code); }
984 EOF
985     log_file $TMPC
986     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
987     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
988 }
989
990 check_insn(){
991     log check_insn "$@"
992     check_inline_asm ${1}_inline "\"$2\""
993     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
994 }
995
996 check_x86asm(){
997     log check_x86asm "$@"
998     echo "$1" > $TMPS
999     log_file $TMPS
1000     shift 1
1001     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 check_ld(){
1009     log check_ld "$@"
1010     type=$1
1011     shift 1
1012     flags=$(filter_out '-l*|*.so' $@)
1013     libs=$(filter '-l*|*.so' $@)
1014     check_$type $($cflags_filter $flags) || return
1015     flags=$($ldflags_filter $flags)
1016     libs=$($ldflags_filter $libs)
1017     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1018 }
1019
1020 print_include(){
1021     hdr=$1
1022     test "${hdr%.h}" = "${hdr}" &&
1023         echo "#include $hdr"    ||
1024         echo "#include <$hdr>"
1025 }
1026
1027 check_code(){
1028     log check_code "$@"
1029     check=$1
1030     headers=$2
1031     code=$3
1032     shift 3
1033     {
1034         for hdr in $headers; do
1035             print_include $hdr
1036         done
1037         echo "int main(void) { $code; return 0; }"
1038     } | check_$check "$@"
1039 }
1040
1041 check_cppflags(){
1042     log check_cppflags "$@"
1043     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1044 #include <stdlib.h>
1045 EOF
1046 }
1047
1048 test_cflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_cflags(){
1057     log check_cflags "$@"
1058     test_cflags "$@" && add_cflags "$@"
1059 }
1060
1061 check_cxxflags(){
1062     log check_cxxflags "$@"
1063     set -- $($cflags_filter "$@")
1064     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1065 int x;
1066 EOF
1067 }
1068
1069 test_objcflags(){
1070     log test_objcflags "$@"
1071     set -- $($objcflags_filter "$@")
1072     check_objcc "$@" <<EOF
1073 int x;
1074 EOF
1075 }
1076
1077 check_objcflags(){
1078     log check_objcflags "$@"
1079     test_objcflags "$@" && add_objcflags "$@"
1080 }
1081
1082 test_ldflags(){
1083     log test_ldflags "$@"
1084     check_ld "cc" "$@" <<EOF
1085 int main(void){ return 0; }
1086 EOF
1087 }
1088
1089 check_ldflags(){
1090     log check_ldflags "$@"
1091     test_ldflags "$@" && add_ldflags "$@"
1092 }
1093
1094 test_stripflags(){
1095     log test_stripflags "$@"
1096     # call check_cc to get a fresh TMPO
1097     check_cc <<EOF
1098 int main(void) { return 0; }
1099 EOF
1100     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1101 }
1102
1103 check_stripflags(){
1104     log check_stripflags "$@"
1105     test_stripflags "$@" && add_stripflags "$@"
1106 }
1107
1108 check_header(){
1109     log check_header "$@"
1110     header=$1
1111     shift
1112     disable_sanitized $header
1113     check_cpp "$@" <<EOF && enable_sanitized $header
1114 #include <$header>
1115 int x;
1116 EOF
1117 }
1118
1119 check_header_objcc(){
1120     log check_header_objcc "$@"
1121     rm -f -- "$TMPO"
1122     header=$1
1123     shift
1124     disable_sanitized $header
1125     {
1126        echo "#include <$header>"
1127        echo "int main(void) { return 0; }"
1128     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header
1129 }
1130
1131 check_apple_framework(){
1132     log check_apple_framework "$@"
1133     framework="$1"
1134     name="$(tolower $framework)"
1135     header="${framework}/${framework}.h"
1136     disable $name
1137     check_header_objcc $header &&
1138         enable $name && eval ${name}_extralibs='"-framework $framework"'
1139 }
1140
1141 check_func(){
1142     log check_func "$@"
1143     func=$1
1144     shift
1145     disable $func
1146     check_ld "cc" "$@" <<EOF && enable $func
1147 extern int $func();
1148 int main(void){ $func(); }
1149 EOF
1150 }
1151
1152 check_complexfunc(){
1153     log check_complexfunc "$@"
1154     func=$1
1155     narg=$2
1156     shift 2
1157     test $narg = 2 && args="f, g" || args="f * I"
1158     disable $func
1159     check_ld "cc" "$@" <<EOF && enable $func
1160 #include <complex.h>
1161 #include <math.h>
1162 float foo(complex float f, complex float g) { return $func($args); }
1163 int main(void){ return (int) foo; }
1164 EOF
1165 }
1166
1167 check_mathfunc(){
1168     log check_mathfunc "$@"
1169     func=$1
1170     narg=$2
1171     shift 2
1172     test $narg = 2 && args="f, g" || args="f"
1173     disable $func
1174     check_ld "cc" "$@" <<EOF && enable $func
1175 #include <math.h>
1176 float foo(float f, float g) { return $func($args); }
1177 int main(void){ return (int) foo; }
1178 EOF
1179 }
1180
1181 check_func_headers(){
1182     log check_func_headers "$@"
1183     headers=$1
1184     funcs=$2
1185     shift 2
1186     {
1187         for hdr in $headers; do
1188             print_include $hdr
1189         done
1190         echo "#include <stdint.h>"
1191         for func in $funcs; do
1192             echo "long check_$func(void) { return (long) $func; }"
1193         done
1194         echo "int main(void) { int ret = 0;"
1195         # LTO could optimize out the test functions without this
1196         for func in $funcs; do
1197             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1198         done
1199         echo "return ret; }"
1200     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1201 }
1202
1203 check_class_headers_cpp(){
1204     log check_class_headers_cpp "$@"
1205     headers=$1
1206     classes=$2
1207     shift 2
1208     {
1209         for hdr in $headers; do
1210             echo "#include <$hdr>"
1211         done
1212         echo "int main(void) { "
1213         i=1
1214         for class in $classes; do
1215             echo "$class obj$i;"
1216             i=$(expr $i + 1)
1217         done
1218         echo "return 0; }"
1219     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1220 }
1221
1222 check_cpp_condition(){
1223     log check_cpp_condition "$@"
1224     header=$1
1225     condition=$2
1226     shift 2
1227     check_cpp "$@" <<EOF
1228 #include <$header>
1229 #if !($condition)
1230 #error "unsatisfied condition: $condition"
1231 #endif
1232 EOF
1233 }
1234
1235 test_cflags_cc(){
1236     log test_cflags_cc "$@"
1237     flags=$1
1238     header=$2
1239     condition=$3
1240     shift 3
1241     set -- $($cflags_filter "$flags")
1242     check_cc "$@" <<EOF
1243 #include <$header>
1244 #if !($condition)
1245 #error "unsatisfied condition: $condition"
1246 #endif
1247 EOF
1248 }
1249
1250 check_lib(){
1251     log check_lib "$@"
1252     name="$1"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     disable $name
1257     check_func_headers "$headers" "$funcs" "$@" &&
1258         enable $name && eval ${name}_extralibs="\$@"
1259 }
1260
1261 check_lib_cpp(){
1262     log check_lib_cpp "$@"
1263     name="$1"
1264     headers="$2"
1265     classes="$3"
1266     shift 3
1267     disable $name
1268     check_class_headers_cpp "$headers" "$classes" "$@" &&
1269         enable $name && eval ${name}_extralibs="\$@"
1270 }
1271
1272 test_pkg_config(){
1273     log test_pkg_config "$@"
1274     name="$1"
1275     pkg_version="$2"
1276     pkg="${2%% *}"
1277     headers="$3"
1278     funcs="$4"
1279     shift 4
1280     disable $name
1281     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1282     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1283     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1284     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1285         enable $name &&
1286         set_sanitized "${name}_cflags"    $pkg_cflags &&
1287         set_sanitized "${name}_extralibs" $pkg_libs
1288 }
1289
1290 check_pkg_config(){
1291     log check_pkg_config "$@"
1292     name="$1"
1293     test_pkg_config "$@" &&
1294         eval add_cflags \$${name}_cflags
1295 }
1296
1297 check_exec(){
1298     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1299 }
1300
1301 check_exec_crash(){
1302     log check_exec_crash "$@"
1303     code=$(cat)
1304
1305     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1306     # are safe but may not be available everywhere.  Thus we use
1307     # raise(SIGTERM) instead.  The check is run in a subshell so we
1308     # can redirect the "Terminated" message from the shell.  SIGBUS
1309     # is not defined by standard C so it is used conditionally.
1310
1311     (check_exec "$@") >> $logfile 2>&1 <<EOF
1312 #include <signal.h>
1313 static void sighandler(int sig){
1314     raise(SIGTERM);
1315 }
1316 int foo(void){
1317     $code
1318 }
1319 int (*func_ptr)(void) = foo;
1320 int main(void){
1321     signal(SIGILL, sighandler);
1322     signal(SIGFPE, sighandler);
1323     signal(SIGSEGV, sighandler);
1324 #ifdef SIGBUS
1325     signal(SIGBUS, sighandler);
1326 #endif
1327     return func_ptr();
1328 }
1329 EOF
1330 }
1331
1332 check_type(){
1333     log check_type "$@"
1334     headers=$1
1335     type=$2
1336     shift 2
1337     disable_sanitized "$type"
1338     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1339 }
1340
1341 check_struct(){
1342     log check_struct "$@"
1343     headers=$1
1344     struct=$2
1345     member=$3
1346     shift 3
1347     disable_sanitized "${struct}_${member}"
1348     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1349         enable_sanitized "${struct}_${member}"
1350 }
1351
1352 check_builtin(){
1353     log check_builtin "$@"
1354     name=$1
1355     headers=$2
1356     builtin=$3
1357     shift 3
1358     disable "$name"
1359     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1360 }
1361
1362 check_compile_assert(){
1363     log check_compile_assert "$@"
1364     name=$1
1365     headers=$2
1366     condition=$3
1367     shift 3
1368     disable "$name"
1369     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1370 }
1371
1372 require(){
1373     log require "$@"
1374     name_version="$1"
1375     name="${1%% *}"
1376     headers="$2"
1377     func="$3"
1378     shift 3
1379     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1380 }
1381
1382 require_cpp(){
1383     name="$1"
1384     headers="$2"
1385     classes="$3"
1386     shift 3
1387     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1388 }
1389
1390 require_header(){
1391     log require "$@"
1392     header="$1"
1393     shift
1394     check_header "$header" "$@" || die "ERROR: $header header not found"
1395 }
1396
1397 require_cpp_condition(){
1398     log require "$@"
1399     header="$1"
1400     condition="$2"
1401     shift 2
1402     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1403 }
1404
1405 require_pkg_config(){
1406     log require_pkg_config "$@"
1407     pkg_version="$2"
1408     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1409 }
1410
1411 hostcc_e(){
1412     eval printf '%s\\n' $HOSTCC_E
1413 }
1414
1415 hostcc_o(){
1416     eval printf '%s\\n' $HOSTCC_O
1417 }
1418
1419 check_host_cc(){
1420     log check_host_cc "$@"
1421     cat > $TMPC
1422     log_file $TMPC
1423     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1424 }
1425
1426 check_host_cpp(){
1427     log check_host_cpp "$@"
1428     cat > $TMPC
1429     log_file $TMPC
1430     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1431 }
1432
1433 check_host_cppflags(){
1434     log check_host_cppflags "$@"
1435     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1436 #include <stdlib.h>
1437 EOF
1438 }
1439
1440 check_host_cflags(){
1441     log check_host_cflags "$@"
1442     set -- $($host_cflags_filter "$@")
1443     check_host_cc "$@" <<EOF && append host_cflags "$@"
1444 int x;
1445 EOF
1446 }
1447
1448 check_host_cpp_condition(){
1449     log check_host_cpp_condition "$@"
1450     header=$1
1451     condition=$2
1452     shift 2
1453     check_host_cpp "$@" <<EOF
1454 #include <$header>
1455 #if !($condition)
1456 #error "unsatisfied condition: $condition"
1457 #endif
1458 EOF
1459 }
1460
1461 cp_if_changed(){
1462     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1463     mkdir -p "$(dirname $2)"
1464     cp -f "$1" "$2"
1465 }
1466
1467 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1468 # system-dependent things.
1469
1470 AVCODEC_COMPONENTS="
1471     bsfs
1472     decoders
1473     encoders
1474     hwaccels
1475     parsers
1476 "
1477
1478 AVDEVICE_COMPONENTS="
1479     indevs
1480     outdevs
1481 "
1482
1483 AVFILTER_COMPONENTS="
1484     filters
1485 "
1486
1487 AVFORMAT_COMPONENTS="
1488     demuxers
1489     muxers
1490     protocols
1491 "
1492
1493 AVRESAMPLE_COMPONENTS=""
1494
1495 AVUTIL_COMPONENTS=""
1496
1497 COMPONENT_LIST="
1498     $AVCODEC_COMPONENTS
1499     $AVDEVICE_COMPONENTS
1500     $AVFILTER_COMPONENTS
1501     $AVFORMAT_COMPONENTS
1502     $AVRESAMPLE_COMPONENTS
1503     $AVUTIL_COMPONENTS
1504 "
1505
1506 EXAMPLE_LIST="
1507     avio_dir_cmd_example
1508     avio_reading_example
1509     decode_audio_example
1510     decode_video_example
1511     demuxing_decoding_example
1512     encode_audio_example
1513     encode_video_example
1514     extract_mvs_example
1515     filter_audio_example
1516     filtering_audio_example
1517     filtering_video_example
1518     http_multiclient_example
1519     hw_decode_example
1520     metadata_example
1521     muxing_example
1522     qsvdec_example
1523     remuxing_example
1524     resampling_audio_example
1525     scaling_video_example
1526     transcode_aac_example
1527     transcoding_example
1528 "
1529
1530 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1531     alsa
1532     appkit
1533     avfoundation
1534     bzlib
1535     coreimage
1536     iconv
1537     libxcb
1538     libxcb_shm
1539     libxcb_shape
1540     libxcb_xfixes
1541     lzma
1542     schannel
1543     sdl2
1544     securetransport
1545     sndio
1546     xlib
1547     zlib
1548 "
1549
1550 EXTERNAL_LIBRARY_GPL_LIST="
1551     avisynth
1552     frei0r
1553     libcdio
1554     librubberband
1555     libvidstab
1556     libx264
1557     libx265
1558     libxavs
1559     libxvid
1560 "
1561
1562 EXTERNAL_LIBRARY_NONFREE_LIST="
1563     decklink
1564     libndi_newtek
1565     libfdk_aac
1566     openssl
1567 "
1568
1569 EXTERNAL_LIBRARY_VERSION3_LIST="
1570     gmp
1571     libopencore_amrnb
1572     libopencore_amrwb
1573     libvmaf
1574     libvo_amrwbenc
1575     rkmpp
1576 "
1577
1578 EXTERNAL_LIBRARY_GPLV3_LIST="
1579     libsmbclient
1580 "
1581
1582 EXTERNAL_LIBRARY_LIST="
1583     $EXTERNAL_LIBRARY_GPL_LIST
1584     $EXTERNAL_LIBRARY_NONFREE_LIST
1585     $EXTERNAL_LIBRARY_VERSION3_LIST
1586     $EXTERNAL_LIBRARY_GPLV3_LIST
1587     chromaprint
1588     gcrypt
1589     gnutls
1590     jni
1591     ladspa
1592     libass
1593     libbluray
1594     libbs2b
1595     libcaca
1596     libcelt
1597     libdc1394
1598     libdrm
1599     libflite
1600     libfontconfig
1601     libfreetype
1602     libfribidi
1603     libgme
1604     libgsm
1605     libiec61883
1606     libilbc
1607     libjack
1608     libkvazaar
1609     libmodplug
1610     libmp3lame
1611     libmysofa
1612     libopencv
1613     libopenh264
1614     libopenjpeg
1615     libopenmpt
1616     libopus
1617     libpulse
1618     librsvg
1619     librtmp
1620     libshine
1621     libsmbclient
1622     libsnappy
1623     libsoxr
1624     libspeex
1625     libssh
1626     libtesseract
1627     libtheora
1628     libtwolame
1629     libv4l2
1630     libvorbis
1631     libvpx
1632     libwavpack
1633     libwebp
1634     libxml2
1635     libzimg
1636     libzmq
1637     libzvbi
1638     mediacodec
1639     openal
1640     opencl
1641     opengl
1642 "
1643
1644 HWACCEL_AUTODETECT_LIBRARY_LIST="
1645     audiotoolbox
1646     crystalhd
1647     cuda
1648     cuvid
1649     d3d11va
1650     dxva2
1651     nvdec
1652     nvenc
1653     vaapi
1654     vdpau
1655     videotoolbox
1656     v4l2_m2m
1657     xvmc
1658 "
1659
1660 # catchall list of things that require external libs to link
1661 EXTRALIBS_LIST="
1662     cpu_init
1663     cws2fws
1664 "
1665
1666 HWACCEL_LIBRARY_NONFREE_LIST="
1667     cuda_sdk
1668     libnpp
1669 "
1670
1671 HWACCEL_LIBRARY_LIST="
1672     $HWACCEL_LIBRARY_NONFREE_LIST
1673     libmfx
1674     mmal
1675     omx
1676 "
1677
1678 DOCUMENT_LIST="
1679     doc
1680     htmlpages
1681     manpages
1682     podpages
1683     txtpages
1684 "
1685
1686 FEATURE_LIST="
1687     ftrapv
1688     gray
1689     hardcoded_tables
1690     omx_rpi
1691     runtime_cpudetect
1692     safe_bitstream_reader
1693     shared
1694     small
1695     static
1696     swscale_alpha
1697 "
1698
1699 LIBRARY_LIST="
1700     avcodec
1701     avdevice
1702     avfilter
1703     avformat
1704     avresample
1705     avutil
1706     postproc
1707     swresample
1708     swscale
1709 "
1710
1711 LICENSE_LIST="
1712     gpl
1713     nonfree
1714     version3
1715 "
1716
1717 PROGRAM_LIST="
1718     ffplay
1719     ffprobe
1720     ffserver
1721     ffmpeg
1722 "
1723
1724 SUBSYSTEM_LIST="
1725     dct
1726     dwt
1727     error_resilience
1728     faan
1729     fast_unaligned
1730     fft
1731     lsp
1732     lzo
1733     mdct
1734     pixelutils
1735     network
1736     rdft
1737 "
1738
1739 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1740 CONFIG_LIST="
1741     $DOCUMENT_LIST
1742     $EXAMPLE_LIST
1743     $EXTERNAL_LIBRARY_LIST
1744     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1745     $HWACCEL_LIBRARY_LIST
1746     $HWACCEL_AUTODETECT_LIBRARY_LIST
1747     $FEATURE_LIST
1748     $LICENSE_LIST
1749     $LIBRARY_LIST
1750     $PROGRAM_LIST
1751     $SUBSYSTEM_LIST
1752     autodetect
1753     fontconfig
1754     linux_perf
1755     memory_poisoning
1756     neon_clobber_test
1757     ossfuzz
1758     pic
1759     thumb
1760     valgrind_backtrace
1761     xmm_clobber_test
1762     $COMPONENT_LIST
1763 "
1764
1765 THREADS_LIST="
1766     pthreads
1767     os2threads
1768     w32threads
1769 "
1770
1771 ATOMICS_LIST="
1772     atomics_gcc
1773     atomics_suncc
1774     atomics_win32
1775 "
1776
1777 AUTODETECT_LIBS="
1778     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1779     $HWACCEL_AUTODETECT_LIBRARY_LIST
1780     $THREADS_LIST
1781 "
1782
1783 ARCH_LIST="
1784     aarch64
1785     alpha
1786     arm
1787     avr32
1788     avr32_ap
1789     avr32_uc
1790     bfin
1791     ia64
1792     m68k
1793     mips
1794     mips64
1795     parisc
1796     ppc
1797     ppc64
1798     s390
1799     sh4
1800     sparc
1801     sparc64
1802     tilegx
1803     tilepro
1804     tomi
1805     x86
1806     x86_32
1807     x86_64
1808 "
1809
1810 ARCH_EXT_LIST_ARM="
1811     armv5te
1812     armv6
1813     armv6t2
1814     armv8
1815     neon
1816     vfp
1817     vfpv3
1818     setend
1819 "
1820
1821 ARCH_EXT_LIST_MIPS="
1822     mipsfpu
1823     mips32r2
1824     mips32r5
1825     mips64r2
1826     mips32r6
1827     mips64r6
1828     mipsdsp
1829     mipsdspr2
1830     msa
1831 "
1832
1833 ARCH_EXT_LIST_LOONGSON="
1834     loongson2
1835     loongson3
1836     mmi
1837 "
1838
1839 ARCH_EXT_LIST_X86_SIMD="
1840     aesni
1841     amd3dnow
1842     amd3dnowext
1843     avx
1844     avx2
1845     fma3
1846     fma4
1847     mmx
1848     mmxext
1849     sse
1850     sse2
1851     sse3
1852     sse4
1853     sse42
1854     ssse3
1855     xop
1856 "
1857
1858 ARCH_EXT_LIST_PPC="
1859     altivec
1860     dcbzl
1861     ldbrx
1862     power8
1863     ppc4xx
1864     vsx
1865 "
1866
1867 ARCH_EXT_LIST_X86="
1868     $ARCH_EXT_LIST_X86_SIMD
1869     cpunop
1870     i686
1871 "
1872
1873 ARCH_EXT_LIST="
1874     $ARCH_EXT_LIST_ARM
1875     $ARCH_EXT_LIST_PPC
1876     $ARCH_EXT_LIST_X86
1877     $ARCH_EXT_LIST_MIPS
1878     $ARCH_EXT_LIST_LOONGSON
1879 "
1880
1881 ARCH_FEATURES="
1882     aligned_stack
1883     fast_64bit
1884     fast_clz
1885     fast_cmov
1886     local_aligned
1887     simd_align_16
1888     simd_align_32
1889 "
1890
1891 BUILTIN_LIST="
1892     atomic_cas_ptr
1893     machine_rw_barrier
1894     MemoryBarrier
1895     mm_empty
1896     rdtsc
1897     sarestart
1898     sem_timedwait
1899     sync_val_compare_and_swap
1900 "
1901 HAVE_LIST_CMDLINE="
1902     inline_asm
1903     symver
1904     x86asm
1905 "
1906
1907 HAVE_LIST_PUB="
1908     bigendian
1909     fast_unaligned
1910 "
1911
1912 HEADERS_LIST="
1913     arpa_inet_h
1914     asm_types_h
1915     cdio_paranoia_h
1916     cdio_paranoia_paranoia_h
1917     cuda_h
1918     d3d11_h
1919     dispatch_dispatch_h
1920     dev_bktr_ioctl_bt848_h
1921     dev_bktr_ioctl_meteor_h
1922     dev_ic_bt8xx_h
1923     dev_video_bktr_ioctl_bt848_h
1924     dev_video_meteor_ioctl_meteor_h
1925     direct_h
1926     dirent_h
1927     dlfcn_h
1928     dxgidebug_h
1929     dxva_h
1930     ES2_gl_h
1931     gsm_h
1932     io_h
1933     mach_mach_time_h
1934     machine_ioctl_bt848_h
1935     machine_ioctl_meteor_h
1936     malloc_h
1937     opencv2_core_core_c_h
1938     OpenGL_gl3_h
1939     poll_h
1940     soundcard_h
1941     stdatomic_h
1942     sys_mman_h
1943     sys_param_h
1944     sys_resource_h
1945     sys_select_h
1946     sys_soundcard_h
1947     sys_time_h
1948     sys_un_h
1949     sys_videoio_h
1950     termios_h
1951     udplite_h
1952     unistd_h
1953     valgrind_valgrind_h
1954     windows_h
1955     winsock2_h
1956 "
1957
1958 INTRINSICS_LIST="
1959     intrinsics_neon
1960 "
1961
1962 COMPLEX_FUNCS="
1963     cabs
1964     cexp
1965 "
1966
1967 MATH_FUNCS="
1968     atanf
1969     atan2f
1970     cbrt
1971     cbrtf
1972     copysign
1973     cosf
1974     erf
1975     exp2
1976     exp2f
1977     expf
1978     hypot
1979     isfinite
1980     isinf
1981     isnan
1982     ldexpf
1983     llrint
1984     llrintf
1985     log2
1986     log2f
1987     log10f
1988     lrint
1989     lrintf
1990     powf
1991     rint
1992     round
1993     roundf
1994     sinf
1995     trunc
1996     truncf
1997 "
1998
1999 SYSTEM_FUNCS="
2000     access
2001     aligned_malloc
2002     arc4random
2003     clock_gettime
2004     closesocket
2005     CommandLineToArgvW
2006     CryptGenRandom
2007     fcntl
2008     fork
2009     getaddrinfo
2010     gethrtime
2011     getopt
2012     GetProcessAffinityMask
2013     GetProcessMemoryInfo
2014     GetProcessTimes
2015     getrusage
2016     GetSystemTimeAsFileTime
2017     gettimeofday
2018     glob
2019     glXGetProcAddress
2020     gmtime_r
2021     inet_aton
2022     isatty
2023     kbhit
2024     localtime_r
2025     lstat
2026     lzo1x_999_compress
2027     mach_absolute_time
2028     MapViewOfFile
2029     memalign
2030     mkstemp
2031     mmap
2032     mprotect
2033     nanosleep
2034     PeekNamedPipe
2035     posix_memalign
2036     pthread_cancel
2037     sched_getaffinity
2038     SetConsoleTextAttribute
2039     SetConsoleCtrlHandler
2040     setmode
2041     setrlimit
2042     Sleep
2043     strerror_r
2044     sysconf
2045     sysctl
2046     usleep
2047     UTGetOSTypeFromString
2048     VirtualAlloc
2049     wglGetProcAddress
2050 "
2051
2052 TOOLCHAIN_FEATURES="
2053     as_arch_directive
2054     as_fpu_directive
2055     as_func
2056     as_object_arch
2057     asm_mod_q
2058     attribute_may_alias
2059     attribute_packed
2060     blocks_extension
2061     ebp_available
2062     ebx_available
2063     gnu_as
2064     gnu_windres
2065     ibm_asm
2066     inline_asm_direct_symbol_refs
2067     inline_asm_labels
2068     inline_asm_nonlocal_labels
2069     pragma_deprecated
2070     rsync_contimeout
2071     symver_asm_label
2072     symver_gnu_asm
2073     vfp_args
2074     xform_asm
2075     xmm_clobbers
2076 "
2077
2078 TYPES_LIST="
2079     CONDITION_VARIABLE_Ptr
2080     kCMVideoCodecType_HEVC
2081     socklen_t
2082     struct_addrinfo
2083     struct_group_source_req
2084     struct_ip_mreq_source
2085     struct_ipv6_mreq
2086     struct_msghdr_msg_flags
2087     struct_pollfd
2088     struct_rusage_ru_maxrss
2089     struct_sctp_event_subscribe
2090     struct_sockaddr_in6
2091     struct_sockaddr_sa_len
2092     struct_sockaddr_storage
2093     struct_stat_st_mtim_tv_nsec
2094     struct_v4l2_frmivalenum_discrete
2095 "
2096
2097 HAVE_LIST="
2098     $ARCH_EXT_LIST
2099     $(add_suffix _external $ARCH_EXT_LIST)
2100     $(add_suffix _inline   $ARCH_EXT_LIST)
2101     $ARCH_FEATURES
2102     $ATOMICS_LIST
2103     $BUILTIN_LIST
2104     $COMPLEX_FUNCS
2105     $HAVE_LIST_CMDLINE
2106     $HAVE_LIST_PUB
2107     $HEADERS_LIST
2108     $INTRINSICS_LIST
2109     $MATH_FUNCS
2110     $SYSTEM_FUNCS
2111     $THREADS_LIST
2112     $TOOLCHAIN_FEATURES
2113     $TYPES_LIST
2114     atomics_native
2115     dos_paths
2116     libc_msvcrt
2117     makeinfo
2118     makeinfo_html
2119     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2120     perl
2121     pod2man
2122     section_data_rel_ro
2123     texi2html
2124     threads
2125     uwp
2126     vaapi_drm
2127     vaapi_x11
2128     vdpau_x11
2129     winrt
2130 "
2131
2132 # options emitted with CONFIG_ prefix but not available on the command line
2133 CONFIG_EXTRA="
2134     aandcttables
2135     ac3dsp
2136     adts_header
2137     audio_frame_queue
2138     audiodsp
2139     blockdsp
2140     bswapdsp
2141     cabac
2142     cbs
2143     cbs_h264
2144     cbs_h265
2145     cbs_mpeg2
2146     dirac_parse
2147     dvprofile
2148     exif
2149     faandct
2150     faanidct
2151     fdctdsp
2152     flacdsp
2153     fmtconvert
2154     frame_thread_encoder
2155     g722dsp
2156     golomb
2157     gplv3
2158     h263dsp
2159     h264chroma
2160     h264dsp
2161     h264parse
2162     h264pred
2163     h264qpel
2164     hevcparse
2165     hpeldsp
2166     huffman
2167     huffyuvdsp
2168     huffyuvencdsp
2169     idctdsp
2170     iirfilter
2171     mdct15
2172     intrax8
2173     iso_media
2174     ividsp
2175     jpegtables
2176     lgplv3
2177     libx262
2178     llauddsp
2179     llviddsp
2180     llvidencdsp
2181     lpc
2182     lzf
2183     me_cmp
2184     mpeg_er
2185     mpegaudio
2186     mpegaudiodsp
2187     mpegaudioheader
2188     mpegvideo
2189     mpegvideoenc
2190     mss34dsp
2191     pixblockdsp
2192     qpeldsp
2193     qsv
2194     qsvdec
2195     qsvenc
2196     qsvvpp
2197     rangecoder
2198     riffdec
2199     riffenc
2200     rtpdec
2201     rtpenc_chain
2202     rv34dsp
2203     sinewin
2204     snappy
2205     srtp
2206     startcode
2207     texturedsp
2208     texturedspenc
2209     tpeldsp
2210     vaapi_1
2211     vaapi_encode
2212     vc1dsp
2213     videodsp
2214     vp3dsp
2215     vp56dsp
2216     vp8dsp
2217     wma_freqs
2218     wmv2dsp
2219 "
2220
2221 CMDLINE_SELECT="
2222     $ARCH_EXT_LIST
2223     $CONFIG_LIST
2224     $HAVE_LIST_CMDLINE
2225     $THREADS_LIST
2226     asm
2227     cross_compile
2228     debug
2229     extra_warnings
2230     logging
2231     lto
2232     optimizations
2233     rpath
2234     stripping
2235 "
2236
2237 PATHS_LIST="
2238     bindir
2239     datadir
2240     docdir
2241     incdir
2242     libdir
2243     mandir
2244     pkgconfigdir
2245     prefix
2246     shlibdir
2247     install_name_dir
2248 "
2249
2250 CMDLINE_SET="
2251     $PATHS_LIST
2252     ar
2253     arch
2254     as
2255     assert_level
2256     build_suffix
2257     cc
2258     objcc
2259     cpu
2260     cross_prefix
2261     custom_allocator
2262     cxx
2263     dep_cc
2264     doxygen
2265     env
2266     extra_version
2267     gas
2268     host_cc
2269     host_cflags
2270     host_extralibs
2271     host_ld
2272     host_ldflags
2273     host_os
2274     ignore_tests
2275     install
2276     ld
2277     ln_s
2278     logfile
2279     malloc_prefix
2280     nm
2281     optflags
2282     nvccflags
2283     pkg_config
2284     pkg_config_flags
2285     progs_suffix
2286     random_seed
2287     ranlib
2288     samples
2289     strip
2290     sws_max_filter_size
2291     sysinclude
2292     sysroot
2293     target_exec
2294     target_os
2295     target_path
2296     target_samples
2297     tempprefix
2298     toolchain
2299     valgrind
2300     x86asmexe
2301 "
2302
2303 CMDLINE_APPEND="
2304     extra_cflags
2305     extra_cxxflags
2306     extra_objcflags
2307     host_cppflags
2308 "
2309
2310 # code dependency declarations
2311
2312 # architecture extensions
2313
2314 armv5te_deps="arm"
2315 armv6_deps="arm"
2316 armv6t2_deps="arm"
2317 armv8_deps="aarch64"
2318 neon_deps_any="aarch64 arm"
2319 intrinsics_neon_deps="neon"
2320 vfp_deps_any="aarch64 arm"
2321 vfpv3_deps="vfp"
2322 setend_deps="arm"
2323
2324 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2325
2326 altivec_deps="ppc"
2327 dcbzl_deps="ppc"
2328 ldbrx_deps="ppc"
2329 ppc4xx_deps="ppc"
2330 vsx_deps="altivec"
2331 power8_deps="vsx"
2332
2333 loongson2_deps="mips"
2334 loongson3_deps="mips"
2335 mips32r2_deps="mips"
2336 mips32r5_deps="mips"
2337 mips32r6_deps="mips"
2338 mips64r2_deps="mips"
2339 mips64r6_deps="mips"
2340 mipsfpu_deps="mips"
2341 mipsdsp_deps="mips"
2342 mipsdspr2_deps="mips"
2343 mmi_deps="mips"
2344 msa_deps="mipsfpu"
2345
2346 cpunop_deps="i686"
2347 x86_64_select="i686"
2348 x86_64_suggest="fast_cmov"
2349
2350 amd3dnow_deps="mmx"
2351 amd3dnowext_deps="amd3dnow"
2352 i686_deps="x86"
2353 mmx_deps="x86"
2354 mmxext_deps="mmx"
2355 sse_deps="mmxext"
2356 sse2_deps="sse"
2357 sse3_deps="sse2"
2358 ssse3_deps="sse3"
2359 sse4_deps="ssse3"
2360 sse42_deps="sse4"
2361 aesni_deps="sse42"
2362 avx_deps="sse42"
2363 xop_deps="avx"
2364 fma3_deps="avx"
2365 fma4_deps="avx"
2366 avx2_deps="avx"
2367
2368 mmx_external_deps="x86asm"
2369 mmx_inline_deps="inline_asm x86"
2370 mmx_suggest="mmx_external mmx_inline"
2371
2372 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2373     eval dep=\$${ext}_deps
2374     eval ${ext}_external_deps='"${dep}_external"'
2375     eval ${ext}_inline_deps='"${dep}_inline"'
2376     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2377 done
2378
2379 aligned_stack_if_any="aarch64 ppc x86"
2380 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2381 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2382 fast_unaligned_if_any="aarch64 ppc x86"
2383 simd_align_16_if_any="altivec neon sse"
2384 simd_align_32_if_any="avx"
2385
2386 # system capabilities
2387 symver_if_any="symver_asm_label symver_gnu_asm"
2388 valgrind_backtrace_conflict="optimizations"
2389 valgrind_backtrace_deps="valgrind_valgrind_h"
2390
2391 # threading support
2392 atomics_gcc_if="sync_val_compare_and_swap"
2393 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2394 atomics_win32_if="MemoryBarrier"
2395 atomics_native_if_any="$ATOMICS_LIST"
2396 w32threads_deps="atomics_native"
2397 threads_if_any="$THREADS_LIST"
2398
2399 # subsystems
2400 cbs_h264_select="cbs golomb"
2401 cbs_h265_select="cbs golomb"
2402 cbs_mpeg2_select="cbs"
2403 dct_select="rdft"
2404 dirac_parse_select="golomb"
2405 error_resilience_select="me_cmp"
2406 faandct_deps="faan"
2407 faandct_select="fdctdsp"
2408 faanidct_deps="faan"
2409 faanidct_select="idctdsp"
2410 h264dsp_select="startcode"
2411 hevcparse_select="golomb"
2412 frame_thread_encoder_deps="encoders threads"
2413 intrax8_select="blockdsp idctdsp"
2414 mdct_select="fft"
2415 mdct15_select="fft"
2416 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2417 mpeg_er_select="error_resilience"
2418 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2419 mpegaudiodsp_select="dct"
2420 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2421 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2422 vc1dsp_select="h264chroma qpeldsp startcode"
2423 rdft_select="fft"
2424
2425 # decoders / encoders
2426 aac_decoder_select="adts_header mdct15 mdct sinewin"
2427 aac_fixed_decoder_select="mdct sinewin"
2428 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2429 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2430 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2431 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2432 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2433 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2434 adpcm_g722_decoder_select="g722dsp"
2435 adpcm_g722_encoder_select="g722dsp"
2436 aic_decoder_select="golomb idctdsp"
2437 alac_encoder_select="lpc"
2438 als_decoder_select="bswapdsp"
2439 amrnb_decoder_select="lsp"
2440 amrwb_decoder_select="lsp"
2441 amv_decoder_select="sp5x_decoder exif"
2442 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2443 ape_decoder_select="bswapdsp llauddsp"
2444 apng_decoder_select="zlib"
2445 apng_encoder_select="llvidencdsp zlib"
2446 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2447 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2448 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2449 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2450 atrac1_decoder_select="mdct sinewin"
2451 atrac3_decoder_select="mdct"
2452 atrac3p_decoder_select="mdct sinewin"
2453 avrn_decoder_select="exif jpegtables"
2454 bink_decoder_select="blockdsp hpeldsp"
2455 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2456 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2457 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2458 clearvideo_decoder_select="idctdsp"
2459 cllc_decoder_select="bswapdsp"
2460 comfortnoise_encoder_select="lpc"
2461 cook_decoder_select="audiodsp mdct sinewin"
2462 cscd_decoder_select="lzo"
2463 cscd_decoder_suggest="zlib"
2464 dca_decoder_select="mdct"
2465 dds_decoder_select="texturedsp"
2466 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2467 dnxhd_decoder_select="blockdsp idctdsp"
2468 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2469 dolby_e_decoder_select="mdct"
2470 dvvideo_decoder_select="dvprofile idctdsp"
2471 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2472 dxa_decoder_select="zlib"
2473 dxv_decoder_select="lzf texturedsp"
2474 eac3_decoder_select="ac3_decoder"
2475 eac3_encoder_select="ac3_encoder"
2476 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2477 eatgq_decoder_select="aandcttables"
2478 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2479 exr_decoder_select="zlib"
2480 ffv1_decoder_select="rangecoder"
2481 ffv1_encoder_select="rangecoder"
2482 ffvhuff_decoder_select="huffyuv_decoder"
2483 ffvhuff_encoder_select="huffyuv_encoder"
2484 fic_decoder_select="golomb"
2485 flac_decoder_select="flacdsp"
2486 flac_encoder_select="bswapdsp flacdsp lpc"
2487 flashsv2_decoder_select="zlib"
2488 flashsv2_encoder_select="zlib"
2489 flashsv_decoder_select="zlib"
2490 flashsv_encoder_select="zlib"
2491 flv_decoder_select="h263_decoder"
2492 flv_encoder_select="h263_encoder"
2493 fourxm_decoder_select="blockdsp bswapdsp"
2494 fraps_decoder_select="bswapdsp huffman"
2495 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2496 g729_decoder_select="audiodsp"
2497 h261_decoder_select="mpegvideo"
2498 h261_encoder_select="aandcttables mpegvideoenc"
2499 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2500 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2501 h263i_decoder_select="h263_decoder"
2502 h263p_decoder_select="h263_decoder"
2503 h263p_encoder_select="h263_encoder"
2504 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2505 h264_decoder_suggest="error_resilience"
2506 hap_decoder_select="snappy texturedsp"
2507 hap_encoder_deps="libsnappy"
2508 hap_encoder_select="texturedspenc"
2509 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2510 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2511 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2512 iac_decoder_select="imc_decoder"
2513 imc_decoder_select="bswapdsp fft mdct sinewin"
2514 indeo3_decoder_select="hpeldsp"
2515 indeo4_decoder_select="ividsp"
2516 indeo5_decoder_select="ividsp"
2517 interplay_video_decoder_select="hpeldsp"
2518 jpegls_decoder_select="mjpeg_decoder"
2519 jv_decoder_select="blockdsp"
2520 lagarith_decoder_select="llviddsp"
2521 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2522 magicyuv_decoder_select="llviddsp"
2523 magicyuv_encoder_select="llvidencdsp"
2524 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2525 metasound_decoder_select="lsp mdct sinewin"
2526 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2527 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2528 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2529 mjpegb_decoder_select="mjpeg_decoder"
2530 mlp_decoder_select="mlp_parser"
2531 mlp_encoder_select="lpc"
2532 motionpixels_decoder_select="bswapdsp"
2533 mp1_decoder_select="mpegaudio"
2534 mp1float_decoder_select="mpegaudio"
2535 mp2_decoder_select="mpegaudio"
2536 mp2float_decoder_select="mpegaudio"
2537 mp3_decoder_select="mpegaudio"
2538 mp3adu_decoder_select="mpegaudio"
2539 mp3adufloat_decoder_select="mpegaudio"
2540 mp3float_decoder_select="mpegaudio"
2541 mp3on4_decoder_select="mpegaudio"
2542 mp3on4float_decoder_select="mpegaudio"
2543 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2544 mpc8_decoder_select="mpegaudiodsp"
2545 mpegvideo_decoder_select="mpegvideo"
2546 mpeg1video_decoder_select="mpegvideo"
2547 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2548 mpeg2video_decoder_select="mpegvideo"
2549 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2550 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2551 mpeg4_encoder_select="h263_encoder"
2552 msa1_decoder_select="mss34dsp"
2553 mscc_decoder_select="zlib"
2554 msmpeg4v1_decoder_select="h263_decoder"
2555 msmpeg4v2_decoder_select="h263_decoder"
2556 msmpeg4v2_encoder_select="h263_encoder"
2557 msmpeg4v3_decoder_select="h263_decoder"
2558 msmpeg4v3_encoder_select="h263_encoder"
2559 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2560 mts2_decoder_select="mss34dsp"
2561 mxpeg_decoder_select="mjpeg_decoder"
2562 nellymoser_decoder_select="mdct sinewin"
2563 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2564 nuv_decoder_select="idctdsp lzo"
2565 on2avc_decoder_select="mdct"
2566 opus_decoder_deps="swresample"
2567 opus_decoder_select="mdct15"
2568 opus_encoder_select="audio_frame_queue mdct15"
2569 png_decoder_select="zlib"
2570 png_encoder_select="llvidencdsp zlib"
2571 prores_decoder_select="blockdsp idctdsp"
2572 prores_encoder_select="fdctdsp"
2573 qcelp_decoder_select="lsp"
2574 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2575 ra_144_decoder_select="audiodsp"
2576 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2577 ralf_decoder_select="golomb"
2578 rawvideo_decoder_select="bswapdsp"
2579 rscc_decoder_select="zlib"
2580 rtjpeg_decoder_select="me_cmp"
2581 rv10_decoder_select="h263_decoder"
2582 rv10_encoder_select="h263_encoder"
2583 rv20_decoder_select="h263_decoder"
2584 rv20_encoder_select="h263_encoder"
2585 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2586 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2587 screenpresso_decoder_select="zlib"
2588 shorten_decoder_select="bswapdsp"
2589 sipr_decoder_select="lsp"
2590 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2591 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2592 sonic_decoder_select="golomb rangecoder"
2593 sonic_encoder_select="golomb rangecoder"
2594 sonic_ls_encoder_select="golomb rangecoder"
2595 sp5x_decoder_select="mjpeg_decoder"
2596 srgc_decoder_select="zlib"
2597 svq1_decoder_select="hpeldsp"
2598 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2599 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2600 svq3_decoder_suggest="zlib"
2601 tak_decoder_select="audiodsp"
2602 tdsc_decoder_select="zlib mjpeg_decoder"
2603 theora_decoder_select="vp3_decoder"
2604 thp_decoder_select="mjpeg_decoder"
2605 tiff_decoder_suggest="zlib lzma"
2606 tiff_encoder_suggest="zlib"
2607 truehd_decoder_select="mlp_parser"
2608 truehd_encoder_select="lpc"
2609 truemotion2_decoder_select="bswapdsp"
2610 truespeech_decoder_select="bswapdsp"
2611 tscc_decoder_select="zlib"
2612 twinvq_decoder_select="mdct lsp sinewin"
2613 txd_decoder_select="texturedsp"
2614 utvideo_decoder_select="bswapdsp llviddsp"
2615 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2616 vble_decoder_select="llviddsp"
2617 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2618 vc1image_decoder_select="vc1_decoder"
2619 vorbis_decoder_select="mdct"
2620 vorbis_encoder_select="mdct"
2621 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2622 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2623 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2624 vp6a_decoder_select="vp6_decoder"
2625 vp6f_decoder_select="vp6_decoder"
2626 vp7_decoder_select="h264pred videodsp vp8dsp"
2627 vp8_decoder_select="h264pred videodsp vp8dsp"
2628 vp9_decoder_select="videodsp vp9_parser"
2629 webp_decoder_select="vp8_decoder exif"
2630 wmalossless_decoder_select="llauddsp"
2631 wmapro_decoder_select="mdct sinewin wma_freqs"
2632 wmav1_decoder_select="mdct sinewin wma_freqs"
2633 wmav1_encoder_select="mdct sinewin wma_freqs"
2634 wmav2_decoder_select="mdct sinewin wma_freqs"
2635 wmav2_encoder_select="mdct sinewin wma_freqs"
2636 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2637 wmv1_decoder_select="h263_decoder"
2638 wmv1_encoder_select="h263_encoder"
2639 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2640 wmv2_encoder_select="h263_encoder wmv2dsp"
2641 wmv3_decoder_select="vc1_decoder"
2642 wmv3image_decoder_select="wmv3_decoder"
2643 xma1_decoder_select="wmapro_decoder"
2644 xma2_decoder_select="wmapro_decoder"
2645 zerocodec_decoder_select="zlib"
2646 zlib_decoder_select="zlib"
2647 zlib_encoder_select="zlib"
2648 zmbv_decoder_select="zlib"
2649 zmbv_encoder_select="zlib"
2650
2651 # hardware accelerators
2652 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2653 cuda_deps_any="libdl LoadLibrary"
2654 cuvid_deps="cuda"
2655 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2656 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2657 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2658 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2659 xvmc_deps="X11_extensions_XvMClib_h"
2660
2661 h263_vaapi_hwaccel_deps="vaapi"
2662 h263_vaapi_hwaccel_select="h263_decoder"
2663 h263_videotoolbox_hwaccel_deps="videotoolbox"
2664 h263_videotoolbox_hwaccel_select="h263_decoder"
2665 h264_cuvid_hwaccel_deps="cuda cuvid"
2666 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2667 h264_d3d11va_hwaccel_deps="d3d11va"
2668 h264_d3d11va_hwaccel_select="h264_decoder"
2669 h264_d3d11va2_hwaccel_deps="d3d11va"
2670 h264_d3d11va2_hwaccel_select="h264_decoder"
2671 h264_dxva2_hwaccel_deps="dxva2"
2672 h264_dxva2_hwaccel_select="h264_decoder"
2673 h264_mediacodec_hwaccel_deps="mediacodec"
2674 h264_mmal_hwaccel_deps="mmal"
2675 h264_nvdec_hwaccel_deps="cuda nvdec"
2676 h264_nvdec_hwaccel_select="h264_decoder"
2677 h264_qsv_hwaccel_deps="libmfx"
2678 h264_vaapi_hwaccel_deps="vaapi"
2679 h264_vaapi_hwaccel_select="h264_decoder"
2680 h264_vdpau_hwaccel_deps="vdpau"
2681 h264_vdpau_hwaccel_select="h264_decoder"
2682 h264_videotoolbox_hwaccel_deps="videotoolbox"
2683 h264_videotoolbox_hwaccel_select="h264_decoder"
2684 hevc_cuvid_hwaccel_deps="cuda cuvid"
2685 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2686 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2687 hevc_d3d11va_hwaccel_select="hevc_decoder"
2688 hevc_mediacodec_hwaccel_deps="mediacodec"
2689 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2690 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2691 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2692 hevc_dxva2_hwaccel_select="hevc_decoder"
2693 hevc_nvdec_hwaccel_deps="cuda nvdec"
2694 hevc_nvdec_hwaccel_select="hevc_decoder"
2695 hevc_qsv_hwaccel_deps="libmfx"
2696 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2697 hevc_vaapi_hwaccel_select="hevc_decoder"
2698 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2699 hevc_vdpau_hwaccel_select="hevc_decoder"
2700 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2701 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2702 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2703 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2704 mpeg_xvmc_hwaccel_deps="xvmc"
2705 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2706 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2707 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2708 mpeg1_vdpau_hwaccel_deps="vdpau"
2709 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2710 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2711 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2712 mpeg1_xvmc_hwaccel_deps="xvmc"
2713 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2714 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2715 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2716 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2717 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2718 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2719 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2720 mpeg2_dxva2_hwaccel_deps="dxva2"
2721 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2722 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2723 mpeg2_mmal_hwaccel_deps="mmal"
2724 mpeg2_qsv_hwaccel_deps="libmfx"
2725 mpeg2_vaapi_hwaccel_deps="vaapi"
2726 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2727 mpeg2_vdpau_hwaccel_deps="vdpau"
2728 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2729 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2730 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2731 mpeg2_xvmc_hwaccel_deps="xvmc"
2732 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2733 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2734 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2735 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2736 mpeg4_mmal_hwaccel_deps="mmal"
2737 mpeg4_vaapi_hwaccel_deps="vaapi"
2738 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2739 mpeg4_vdpau_hwaccel_deps="vdpau"
2740 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2741 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2742 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2743 vc1_cuvid_hwaccel_deps="cuda cuvid"
2744 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2745 vc1_d3d11va_hwaccel_deps="d3d11va"
2746 vc1_d3d11va_hwaccel_select="vc1_decoder"
2747 vc1_d3d11va2_hwaccel_deps="d3d11va"
2748 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2749 vc1_dxva2_hwaccel_deps="dxva2"
2750 vc1_dxva2_hwaccel_select="vc1_decoder"
2751 vc1_mmal_hwaccel_deps="mmal"
2752 vc1_qsv_hwaccel_deps="libmfx"
2753 vc1_vaapi_hwaccel_deps="vaapi"
2754 vc1_vaapi_hwaccel_select="vc1_decoder"
2755 vc1_vdpau_hwaccel_deps="vdpau"
2756 vc1_vdpau_hwaccel_select="vc1_decoder"
2757 vp8_cuvid_hwaccel_deps="cuda cuvid"
2758 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2759 vp9_cuvid_hwaccel_deps="cuda cuvid"
2760 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2761 vp8_mediacodec_hwaccel_deps="mediacodec"
2762 vp8_qsv_hwaccel_deps="libmfx"
2763 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2764 vp9_d3d11va_hwaccel_select="vp9_decoder"
2765 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2766 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2767 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2768 vp9_dxva2_hwaccel_select="vp9_decoder"
2769 vp9_mediacodec_hwaccel_deps="mediacodec"
2770 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2771 vp9_vaapi_hwaccel_select="vp9_decoder"
2772 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2773 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2774 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2775 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2776 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2777
2778 # hardware-accelerated codecs
2779 omx_deps="libdl pthreads"
2780 omx_rpi_select="omx"
2781 qsv_deps="libmfx"
2782 qsvdec_select="qsv"
2783 qsvenc_select="qsv"
2784 qsvvpp_select="qsv"
2785 vaapi_encode_deps="vaapi"
2786 v4l2_m2m_deps_any="linux_videodev2_h"
2787
2788 hwupload_cuda_filter_deps="cuda"
2789 scale_npp_filter_deps="cuda libnpp"
2790 scale_cuda_filter_deps="cuda_sdk"
2791 thumbnail_cuda_filter_deps="cuda_sdk"
2792
2793 nvenc_deps="cuda"
2794 nvenc_deps_any="libdl LoadLibrary"
2795 nvenc_encoder_deps="nvenc"
2796
2797 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2798 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2799 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2800 h264_cuvid_decoder_deps="cuda cuvid"
2801 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2802 h264_mediacodec_decoder_deps="mediacodec"
2803 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2804 h264_mmal_decoder_deps="mmal"
2805 h264_nvenc_encoder_deps="nvenc"
2806 h264_omx_encoder_deps="omx"
2807 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2808 h264_qsv_encoder_select="qsvenc"
2809 h264_rkmpp_decoder_deps="rkmpp"
2810 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2811 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2812 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2813 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2814 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2815 hevc_cuvid_decoder_deps="cuda cuvid"
2816 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2817 hevc_mediacodec_decoder_deps="mediacodec"
2818 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2819 hevc_nvenc_encoder_deps="nvenc"
2820 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2821 hevc_qsv_encoder_select="hevcparse qsvenc"
2822 hevc_rkmpp_decoder_deps="rkmpp"
2823 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2824 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2825 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2826 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2827 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2828 mjpeg_cuvid_decoder_deps="cuda cuvid"
2829 mjpeg_qsv_encoder_deps="libmfx"
2830 mjpeg_qsv_encoder_select="qsvenc"
2831 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2832 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2833 mpeg1_cuvid_decoder_deps="cuda cuvid"
2834 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2835 mpeg2_crystalhd_decoder_select="crystalhd"
2836 mpeg2_cuvid_decoder_deps="cuda cuvid"
2837 mpeg2_mmal_decoder_deps="mmal"
2838 mpeg2_mediacodec_decoder_deps="mediacodec"
2839 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2840 mpeg2_qsv_encoder_select="qsvenc"
2841 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2842 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2843 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2844 mpeg4_crystalhd_decoder_select="crystalhd"
2845 mpeg4_cuvid_decoder_deps="cuda cuvid"
2846 mpeg4_mediacodec_decoder_deps="mediacodec"
2847 mpeg4_mmal_decoder_deps="mmal"
2848 mpeg4_omx_encoder_deps="omx"
2849 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2850 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2851 msmpeg4_crystalhd_decoder_select="crystalhd"
2852 nvenc_h264_encoder_select="h264_nvenc_encoder"
2853 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2854 vc1_crystalhd_decoder_select="crystalhd"
2855 vc1_cuvid_decoder_deps="cuda cuvid"
2856 vc1_mmal_decoder_deps="mmal"
2857 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2858 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2859 vp8_cuvid_decoder_deps="cuda cuvid"
2860 vp8_mediacodec_decoder_deps="mediacodec"
2861 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2862 vp8_rkmpp_decoder_deps="rkmpp"
2863 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2864 vp8_vaapi_encoder_select="vaapi_encode"
2865 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2866 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2867 vp9_cuvid_decoder_deps="cuda cuvid"
2868 vp9_mediacodec_decoder_deps="mediacodec"
2869 vp9_rkmpp_decoder_deps="rkmpp"
2870 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2871 vp9_vaapi_encoder_select="vaapi_encode"
2872 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2873 wmv3_crystalhd_decoder_select="crystalhd"
2874
2875 # parsers
2876 aac_parser_select="adts_header"
2877 h264_parser_select="golomb h264dsp h264parse"
2878 hevc_parser_select="hevcparse"
2879 mpegaudio_parser_select="mpegaudioheader"
2880 mpegvideo_parser_select="mpegvideo"
2881 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2882 vc1_parser_select="vc1dsp"
2883
2884 # bitstream_filters
2885 aac_adtstoasc_bsf_select="adts_header"
2886 h264_metadata_bsf_select="cbs_h264"
2887 h264_redundant_pps_bsf_select="cbs_h264"
2888 hevc_metadata_bsf_select="cbs_h265"
2889 mjpeg2jpeg_bsf_select="jpegtables"
2890 mpeg2_metadata_bsf_select="cbs_mpeg2"
2891 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2892
2893 # external libraries
2894 aac_at_decoder_deps="audiotoolbox"
2895 ac3_at_decoder_deps="audiotoolbox"
2896 ac3_at_decoder_select="ac3_parser"
2897 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2898 alac_at_decoder_deps="audiotoolbox"
2899 amr_nb_at_decoder_deps="audiotoolbox"
2900 avisynth_deps_any="libdl LoadLibrary"
2901 avisynth_demuxer_deps="avisynth"
2902 avisynth_demuxer_select="riffdec"
2903 eac3_at_decoder_deps="audiotoolbox"
2904 eac3_at_decoder_select="ac3_parser"
2905 gsm_ms_at_decoder_deps="audiotoolbox"
2906 ilbc_at_decoder_deps="audiotoolbox"
2907 mp1_at_decoder_deps="audiotoolbox"
2908 mp2_at_decoder_deps="audiotoolbox"
2909 mp3_at_decoder_deps="audiotoolbox"
2910 mp1_at_decoder_select="mpegaudioheader"
2911 mp2_at_decoder_select="mpegaudioheader"
2912 mp3_at_decoder_select="mpegaudioheader"
2913 pcm_alaw_at_decoder_deps="audiotoolbox"
2914 pcm_mulaw_at_decoder_deps="audiotoolbox"
2915 qdmc_at_decoder_deps="audiotoolbox"
2916 qdm2_at_decoder_deps="audiotoolbox"
2917 aac_at_encoder_deps="audiotoolbox"
2918 aac_at_encoder_select="audio_frame_queue"
2919 alac_at_encoder_deps="audiotoolbox"
2920 alac_at_encoder_select="audio_frame_queue"
2921 ilbc_at_encoder_deps="audiotoolbox"
2922 ilbc_at_encoder_select="audio_frame_queue"
2923 pcm_alaw_at_encoder_deps="audiotoolbox"
2924 pcm_alaw_at_encoder_select="audio_frame_queue"
2925 pcm_mulaw_at_encoder_deps="audiotoolbox"
2926 pcm_mulaw_at_encoder_select="audio_frame_queue"
2927 chromaprint_muxer_deps="chromaprint"
2928 h264_videotoolbox_encoder_deps="pthreads"
2929 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2930 libcelt_decoder_deps="libcelt"
2931 libfdk_aac_decoder_deps="libfdk_aac"
2932 libfdk_aac_encoder_deps="libfdk_aac"
2933 libfdk_aac_encoder_select="audio_frame_queue"
2934 libgme_demuxer_deps="libgme"
2935 libgsm_decoder_deps="libgsm"
2936 libgsm_encoder_deps="libgsm"
2937 libgsm_ms_decoder_deps="libgsm"
2938 libgsm_ms_encoder_deps="libgsm"
2939 libilbc_decoder_deps="libilbc"
2940 libilbc_encoder_deps="libilbc"
2941 libkvazaar_encoder_deps="libkvazaar"
2942 libmodplug_demuxer_deps="libmodplug"
2943 libmp3lame_encoder_deps="libmp3lame"
2944 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2945 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2946 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2947 libopencore_amrnb_encoder_select="audio_frame_queue"
2948 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2949 libopenh264_decoder_deps="libopenh264"
2950 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2951 libopenh264_encoder_deps="libopenh264"
2952 libopenjpeg_decoder_deps="libopenjpeg"
2953 libopenjpeg_encoder_deps="libopenjpeg"
2954 libopenmpt_demuxer_deps="libopenmpt"
2955 libopus_decoder_deps="libopus"
2956 libopus_encoder_deps="libopus"
2957 libopus_encoder_select="audio_frame_queue"
2958 librsvg_decoder_deps="librsvg"
2959 libshine_encoder_deps="libshine"
2960 libshine_encoder_select="audio_frame_queue"
2961 libspeex_decoder_deps="libspeex"
2962 libspeex_encoder_deps="libspeex"
2963 libspeex_encoder_select="audio_frame_queue"
2964 libtheora_encoder_deps="libtheora"
2965 libtwolame_encoder_deps="libtwolame"
2966 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2967 libvorbis_decoder_deps="libvorbis"
2968 libvorbis_encoder_deps="libvorbis libvorbisenc"
2969 libvorbis_encoder_select="audio_frame_queue"
2970 libvpx_vp8_decoder_deps="libvpx"
2971 libvpx_vp8_encoder_deps="libvpx"
2972 libvpx_vp9_decoder_deps="libvpx"
2973 libvpx_vp9_encoder_deps="libvpx"
2974 libwavpack_encoder_deps="libwavpack"
2975 libwavpack_encoder_select="audio_frame_queue"
2976 libwebp_encoder_deps="libwebp"
2977 libwebp_anim_encoder_deps="libwebp"
2978 libx262_encoder_deps="libx262"
2979 libx264_encoder_deps="libx264"
2980 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2981 libx264rgb_encoder_select="libx264_encoder"
2982 libx265_encoder_deps="libx265"
2983 libxavs_encoder_deps="libxavs"
2984 libxvid_encoder_deps="libxvid"
2985 libzvbi_teletext_decoder_deps="libzvbi"
2986 videotoolbox_suggest="coreservices"
2987 videotoolbox_deps="corefoundation coremedia corevideo"
2988 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2989
2990 # demuxers / muxers
2991 ac3_demuxer_select="ac3_parser"
2992 aiff_muxer_select="iso_media"
2993 asf_demuxer_select="riffdec"
2994 asf_o_demuxer_select="riffdec"
2995 asf_muxer_select="riffenc"
2996 asf_stream_muxer_select="asf_muxer"
2997 avi_demuxer_select="iso_media riffdec exif"
2998 avi_muxer_select="riffenc"
2999 caf_demuxer_select="iso_media riffdec"
3000 caf_muxer_select="iso_media"
3001 dash_muxer_select="mp4_muxer"
3002 dash_demuxer_deps="libxml2"
3003 dirac_demuxer_select="dirac_parser"
3004 dts_demuxer_select="dca_parser"
3005 dtshd_demuxer_select="dca_parser"
3006 dv_demuxer_select="dvprofile"
3007 dv_muxer_select="dvprofile"
3008 dxa_demuxer_select="riffdec"
3009 eac3_demuxer_select="ac3_parser"
3010 f4v_muxer_select="mov_muxer"
3011 fifo_muxer_deps="threads"
3012 flac_demuxer_select="flac_parser"
3013 hds_muxer_select="flv_muxer"
3014 hls_muxer_select="mpegts_muxer"
3015 hls_muxer_suggest="gcrypt openssl"
3016 image2_alias_pix_demuxer_select="image2_demuxer"
3017 image2_brender_pix_demuxer_select="image2_demuxer"
3018 ipod_muxer_select="mov_muxer"
3019 ismv_muxer_select="mov_muxer"
3020 matroska_audio_muxer_select="matroska_muxer"
3021 matroska_demuxer_select="iso_media riffdec"
3022 matroska_demuxer_suggest="bzlib lzo zlib"
3023 matroska_muxer_select="iso_media riffenc"
3024 mmf_muxer_select="riffenc"
3025 mov_demuxer_select="iso_media riffdec"
3026 mov_demuxer_suggest="zlib"
3027 mov_muxer_select="iso_media riffenc rtpenc_chain"
3028 mp3_demuxer_select="mpegaudio_parser"
3029 mp3_muxer_select="mpegaudioheader"
3030 mp4_muxer_select="mov_muxer"
3031 mpegts_demuxer_select="iso_media"
3032 mpegts_muxer_select="adts_muxer latm_muxer"
3033 mpegtsraw_demuxer_select="mpegts_demuxer"
3034 mxf_d10_muxer_select="mxf_muxer"
3035 mxf_opatom_muxer_select="mxf_muxer"
3036 nut_muxer_select="riffenc"
3037 nuv_demuxer_select="riffdec"
3038 oga_muxer_select="ogg_muxer"
3039 ogg_demuxer_select="dirac_parse"
3040 ogv_muxer_select="ogg_muxer"
3041 opus_muxer_select="ogg_muxer"
3042 psp_muxer_select="mov_muxer"
3043 rtp_demuxer_select="sdp_demuxer"
3044 rtp_muxer_select="golomb"
3045 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3046 rtsp_demuxer_select="http_protocol rtpdec"
3047 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3048 sap_demuxer_select="sdp_demuxer"
3049 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3050 sdp_demuxer_select="rtpdec"
3051 smoothstreaming_muxer_select="ismv_muxer"
3052 spdif_demuxer_select="adts_header"
3053 spdif_muxer_select="adts_header"
3054 spx_muxer_select="ogg_muxer"
3055 swf_demuxer_suggest="zlib"
3056 tak_demuxer_select="tak_parser"
3057 tg2_muxer_select="mov_muxer"
3058 tgp_muxer_select="mov_muxer"
3059 vobsub_demuxer_select="mpegps_demuxer"
3060 w64_demuxer_select="wav_demuxer"
3061 w64_muxer_select="wav_muxer"
3062 wav_demuxer_select="riffdec"
3063 wav_muxer_select="riffenc"
3064 webm_muxer_select="iso_media riffenc"
3065 webm_dash_manifest_demuxer_select="matroska_demuxer"
3066 wtv_demuxer_select="mpegts_demuxer riffdec"
3067 wtv_muxer_select="mpegts_muxer riffenc"
3068 xmv_demuxer_select="riffdec"
3069 xwma_demuxer_select="riffdec"
3070
3071 # indevs / outdevs
3072 alsa_indev_deps="alsa"
3073 alsa_outdev_deps="alsa"
3074 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3075 avfoundation_indev_suggest="coregraphics applicationservices"
3076 avfoundation_indev_extralibs="-framework Foundation"
3077 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3078 caca_outdev_deps="libcaca"
3079 decklink_deps_any="libdl LoadLibrary"
3080 decklink_indev_deps="decklink threads"
3081 decklink_indev_extralibs="-lstdc++"
3082 decklink_outdev_deps="decklink threads"
3083 decklink_outdev_extralibs="-lstdc++"
3084 libndi_newtek_indev_deps="libndi_newtek"
3085 libndi_newtek_indev_extralibs="-lndi"
3086 libndi_newtek_outdev_deps="libndi_newtek"
3087 libndi_newtek_outdev_extralibs="-lndi"
3088 dshow_indev_deps="IBaseFilter"
3089 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3090 fbdev_indev_deps="linux_fb_h"
3091 fbdev_outdev_deps="linux_fb_h"
3092 gdigrab_indev_deps="CreateDIBSection"
3093 gdigrab_indev_extralibs="-lgdi32"
3094 gdigrab_indev_select="bmp_decoder"
3095 iec61883_indev_deps="libiec61883"
3096 jack_indev_deps="libjack"
3097 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3098 kmsgrab_indev_deps="libdrm"
3099 lavfi_indev_deps="avfilter"
3100 libcdio_indev_deps="libcdio"
3101 libdc1394_indev_deps="libdc1394"
3102 openal_indev_deps="openal"
3103 opengl_outdev_deps="opengl"
3104 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3105 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3106 pulse_indev_deps="libpulse"
3107 pulse_outdev_deps="libpulse"
3108 sdl2_outdev_deps="sdl2"
3109 sndio_indev_deps="sndio"
3110 sndio_outdev_deps="sndio"
3111 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3112 v4l2_indev_suggest="libv4l2"
3113 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3114 v4l2_outdev_suggest="libv4l2"
3115 vfwcap_indev_deps="vfw32 vfwcap_defines"
3116 xcbgrab_indev_deps="libxcb"
3117 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3118 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3119 xv_outdev_extralibs="-lXv -lX11 -lXext"
3120
3121 # protocols
3122 async_protocol_deps="threads"
3123 bluray_protocol_deps="libbluray"
3124 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3125 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3126 ffrtmpcrypt_protocol_select="tcp_protocol"
3127 ffrtmphttp_protocol_conflict="librtmp_protocol"
3128 ffrtmphttp_protocol_select="http_protocol"
3129 ftp_protocol_select="tcp_protocol"
3130 gopher_protocol_select="network"
3131 http_protocol_select="tcp_protocol"
3132 http_protocol_suggest="zlib"
3133 httpproxy_protocol_select="tcp_protocol"
3134 httpproxy_protocol_suggest="zlib"
3135 https_protocol_select="tls_protocol"
3136 https_protocol_suggest="zlib"
3137 icecast_protocol_select="http_protocol"
3138 librtmp_protocol_deps="librtmp"
3139 librtmpe_protocol_deps="librtmp"
3140 librtmps_protocol_deps="librtmp"
3141 librtmpt_protocol_deps="librtmp"
3142 librtmpte_protocol_deps="librtmp"
3143 libsmbclient_protocol_deps="libsmbclient gplv3"
3144 libssh_protocol_deps="libssh"
3145 mmsh_protocol_select="http_protocol"
3146 mmst_protocol_select="network"
3147 rtmp_protocol_conflict="librtmp_protocol"
3148 rtmp_protocol_select="tcp_protocol"
3149 rtmp_protocol_suggest="zlib"
3150 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3151 rtmpe_protocol_suggest="zlib"
3152 rtmps_protocol_conflict="librtmp_protocol"
3153 rtmps_protocol_select="tls_protocol"
3154 rtmps_protocol_suggest="zlib"
3155 rtmpt_protocol_select="ffrtmphttp_protocol"
3156 rtmpt_protocol_suggest="zlib"
3157 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3158 rtmpte_protocol_suggest="zlib"
3159 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3160 rtmpts_protocol_suggest="zlib"
3161 rtp_protocol_select="udp_protocol"
3162 schannel_conflict="openssl gnutls"
3163 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3164 sctp_protocol_select="network"
3165 securetransport_conflict="openssl gnutls"
3166 srtp_protocol_select="rtp_protocol srtp"
3167 tcp_protocol_select="network"
3168 tls_protocol_deps_any="gnutls openssl schannel securetransport"
3169 tls_protocol_select="tcp_protocol"
3170 udp_protocol_select="network"
3171 udplite_protocol_select="network"
3172 unix_protocol_deps="sys_un_h"
3173 unix_protocol_select="network"
3174
3175 # filters
3176 afftfilt_filter_deps="avcodec"
3177 afftfilt_filter_select="fft"
3178 afir_filter_deps="avcodec"
3179 afir_filter_select="fft"
3180 amovie_filter_deps="avcodec avformat"
3181 aresample_filter_deps="swresample"
3182 ass_filter_deps="libass"
3183 atempo_filter_deps="avcodec"
3184 atempo_filter_select="rdft"
3185 azmq_filter_deps="libzmq"
3186 blackframe_filter_deps="gpl"
3187 boxblur_filter_deps="gpl"
3188 bs2b_filter_deps="libbs2b"
3189 colormatrix_filter_deps="gpl"
3190 coreimage_filter_deps="coreimage appkit"
3191 coreimage_filter_extralibs="-framework OpenGL"
3192 coreimagesrc_filter_deps="coreimage appkit"
3193 coreimagesrc_filter_extralibs="-framework OpenGL"
3194 cover_rect_filter_deps="avcodec avformat gpl"
3195 cropdetect_filter_deps="gpl"
3196 deinterlace_qsv_filter_deps="libmfx"
3197 deinterlace_vaapi_filter_deps="vaapi"
3198 delogo_filter_deps="gpl"
3199 deshake_filter_select="pixelutils"
3200 deshake_filter_suggest="opencl"
3201 drawtext_filter_deps="libfreetype"
3202 drawtext_filter_suggest="libfontconfig libfribidi"
3203 elbg_filter_deps="avcodec"
3204 eq_filter_deps="gpl"
3205 fftfilt_filter_deps="avcodec"
3206 fftfilt_filter_select="rdft"
3207 find_rect_filter_deps="avcodec avformat gpl"
3208 firequalizer_filter_deps="avcodec"
3209 firequalizer_filter_select="rdft"
3210 flite_filter_deps="libflite"
3211 framerate_filter_select="pixelutils"
3212 frei0r_filter_deps="frei0r libdl"
3213 frei0r_src_filter_deps="frei0r libdl"
3214 fspp_filter_deps="gpl"
3215 geq_filter_deps="gpl"
3216 histeq_filter_deps="gpl"
3217 hqdn3d_filter_deps="gpl"
3218 interlace_filter_deps="gpl"
3219 kerndeint_filter_deps="gpl"
3220 ladspa_filter_deps="ladspa libdl"
3221 mcdeint_filter_deps="avcodec gpl"
3222 movie_filter_deps="avcodec avformat"
3223 mpdecimate_filter_deps="gpl"
3224 mpdecimate_filter_select="pixelutils"
3225 mptestsrc_filter_deps="gpl"
3226 negate_filter_deps="lut_filter"
3227 nnedi_filter_deps="gpl"
3228 ocr_filter_deps="libtesseract"
3229 ocv_filter_deps="libopencv"
3230 overlay_qsv_filter_deps="libmfx"
3231 overlay_qsv_filter_select="qsvvpp"
3232 owdenoise_filter_deps="gpl"
3233 pan_filter_deps="swresample"
3234 perspective_filter_deps="gpl"
3235 phase_filter_deps="gpl"
3236 pp7_filter_deps="gpl"
3237 pp_filter_deps="gpl postproc"
3238 pullup_filter_deps="gpl"
3239 removelogo_filter_deps="avcodec avformat swscale"
3240 repeatfields_filter_deps="gpl"
3241 resample_filter_deps="avresample"
3242 rubberband_filter_deps="librubberband"
3243 sab_filter_deps="gpl swscale"
3244 scale2ref_filter_deps="swscale"
3245 scale_filter_deps="swscale"
3246 scale_qsv_filter_deps="libmfx"
3247 select_filter_select="pixelutils"
3248 showcqt_filter_deps="avcodec avformat swscale"
3249 showcqt_filter_suggest="libfontconfig libfreetype"
3250 showcqt_filter_select="fft"
3251 showfreqs_filter_deps="avcodec"
3252 showfreqs_filter_select="fft"
3253 showspectrum_filter_deps="avcodec"
3254 showspectrum_filter_select="fft"
3255 showspectrumpic_filter_deps="avcodec"
3256 showspectrumpic_filter_select="fft"
3257 signature_filter_deps="gpl avcodec avformat"
3258 smartblur_filter_deps="gpl swscale"
3259 sofalizer_filter_deps="libmysofa avcodec"
3260 sofalizer_filter_select="fft"
3261 spectrumsynth_filter_deps="avcodec"
3262 spectrumsynth_filter_select="fft"
3263 spp_filter_deps="gpl avcodec"
3264 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3265 stereo3d_filter_deps="gpl"
3266 subtitles_filter_deps="avformat avcodec libass"
3267 super2xsai_filter_deps="gpl"
3268 pixfmts_super2xsai_test_deps="super2xsai_filter"
3269 tinterlace_filter_deps="gpl"
3270 tinterlace_merge_test_deps="tinterlace_filter"
3271 tinterlace_pad_test_deps="tinterlace_filter"
3272 tonemap_filter_deps="const_nan"
3273 uspp_filter_deps="gpl avcodec"
3274 unsharp_filter_suggest="opencl"
3275 vaguedenoiser_filter_deps="gpl"
3276 vidstabdetect_filter_deps="libvidstab"
3277 vidstabtransform_filter_deps="libvidstab"
3278 libvmaf_filter_deps="libvmaf"
3279 zmq_filter_deps="libzmq"
3280 zoompan_filter_deps="swscale"
3281 zscale_filter_deps="libzimg const_nan"
3282 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3283 vpp_qsv_filter_deps="libmfx"
3284 vpp_qsv_filter_select="qsvvpp"
3285
3286 # examples
3287 avio_dir_cmd_deps="avformat avutil"
3288 avio_reading_deps="avformat avcodec avutil"
3289 decode_audio_example_deps="avcodec avutil"
3290 decode_video_example_deps="avcodec avutil"
3291 demuxing_decoding_example_deps="avcodec avformat avutil"
3292 encode_audio_example_deps="avcodec avutil"
3293 encode_video_example_deps="avcodec avutil"
3294 extract_mvs_example_deps="avcodec avformat avutil"
3295 filter_audio_example_deps="avfilter avutil"
3296 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3297 filtering_video_example_deps="avfilter avcodec avformat avutil"
3298 http_multiclient_example_deps="avformat avutil fork"
3299 hw_decode_example_deps="avcodec avformat avutil"
3300 metadata_example_deps="avformat avutil"
3301 muxing_example_deps="avcodec avformat avutil swscale"
3302 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3303 remuxing_example_deps="avcodec avformat avutil"
3304 resampling_audio_example_deps="avutil swresample"
3305 scaling_video_example_deps="avutil swscale"
3306 transcode_aac_example_deps="avcodec avformat swresample"
3307 transcoding_example_deps="avfilter avcodec avformat avutil"
3308
3309 # EXTRALIBS_LIST
3310 cpu_init_extralibs="pthreads_extralibs"
3311 cws2fws_extralibs="zlib_extralibs"
3312
3313 # libraries, in linking order
3314 avcodec_deps="avutil"
3315 avcodec_suggest="libm"
3316 avcodec_select="null_bsf"
3317 avdevice_deps="avformat avcodec avutil"
3318 avdevice_suggest="libm"
3319 avfilter_deps="avutil"
3320 avfilter_suggest="libm"
3321 avformat_deps="avcodec avutil"
3322 avformat_suggest="libm network zlib"
3323 avresample_deps="avutil"
3324 avresample_suggest="libm"
3325 avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3326 postproc_deps="avutil gpl"
3327 postproc_suggest="libm"
3328 swresample_deps="avutil"
3329 swresample_suggest="libm libsoxr"
3330 swscale_deps="avutil"
3331 swscale_suggest="libm"
3332
3333 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3334 avfilter_extralibs="pthreads_extralibs"
3335 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3336
3337 # programs
3338 ffmpeg_deps="avcodec avfilter avformat swresample"
3339 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3340                null_filter
3341                trim_filter"
3342 ffmpeg_suggest="ole32 psapi shell32"
3343 ffplay_deps="avcodec avformat swscale swresample sdl2"
3344 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3345 ffplay_suggest="shell32"
3346 ffprobe_deps="avcodec avformat"
3347 ffprobe_suggest="shell32"
3348 ffserver_deps="avformat fork sarestart"
3349 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3350
3351 # documentation
3352 podpages_deps="perl"
3353 manpages_deps="perl pod2man"
3354 htmlpages_deps="perl"
3355 htmlpages_deps_any="makeinfo_html texi2html"
3356 txtpages_deps="perl makeinfo"
3357 doc_deps_any="manpages htmlpages podpages txtpages"
3358
3359 # default parameters
3360
3361 logfile="ffbuild/config.log"
3362
3363 # installation paths
3364 prefix_default="/usr/local"
3365 bindir_default='${prefix}/bin'
3366 datadir_default='${prefix}/share/ffmpeg'
3367 docdir_default='${prefix}/share/doc/ffmpeg'
3368 incdir_default='${prefix}/include'
3369 libdir_default='${prefix}/lib'
3370 mandir_default='${prefix}/share/man'
3371
3372 # toolchain
3373 ar_default="ar"
3374 cc_default="gcc"
3375 cxx_default="g++"
3376 host_cc_default="gcc"
3377 doxygen_default="doxygen"
3378 install="install"
3379 ln_s_default="ln -s -f"
3380 nm_default="nm -g"
3381 pkg_config_default=pkg-config
3382 ranlib_default="ranlib"
3383 strip_default="strip"
3384 version_script='--version-script'
3385 x86asmexe_default="nasm"
3386 windres_default="windres"
3387 nvcc_default="nvcc"
3388 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3389 striptype="direct"
3390
3391 # OS
3392 target_os_default=$(tolower $(uname -s))
3393 host_os=$target_os_default
3394
3395 # machine
3396 if test "$target_os_default" = aix; then
3397     arch_default=$(uname -p)
3398     strip_default="strip -X32_64"
3399 else
3400     arch_default=$(uname -m)
3401 fi
3402 cpu="generic"
3403 intrinsics="none"
3404
3405 # configurable options
3406 enable $PROGRAM_LIST
3407 enable $DOCUMENT_LIST
3408 enable $EXAMPLE_LIST
3409 enable $(filter_out avresample $LIBRARY_LIST)
3410 enable stripping
3411
3412 enable asm
3413 enable debug
3414 enable doc
3415 enable faan faandct faanidct
3416 enable optimizations
3417 enable runtime_cpudetect
3418 enable safe_bitstream_reader
3419 enable static
3420 enable swscale_alpha
3421 enable valgrind_backtrace
3422
3423 sws_max_filter_size_default=256
3424 set_default sws_max_filter_size
3425
3426 # internal components are enabled by default
3427 enable $EXTRALIBS_LIST
3428
3429 # Avoid external, non-system, libraries getting enabled by dependency resolution
3430 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3431
3432 # build settings
3433 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3434 LIBPREF="lib"
3435 LIBSUF=".a"
3436 FULLNAME='$(NAME)$(BUILDSUF)'
3437 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3438 SLIBPREF="lib"
3439 SLIBSUF=".so"
3440 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3441 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3442 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3443 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3444 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3445 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3446 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3447
3448 asflags_filter=echo
3449 cflags_filter=echo
3450 ldflags_filter=echo
3451
3452 AS_C='-c'
3453 AS_O='-o $@'
3454 CC_C='-c'
3455 CC_E='-E -o $@'
3456 CC_O='-o $@'
3457 CXX_C='-c'
3458 CXX_O='-o $@'
3459 OBJCC_C='-c'
3460 OBJCC_E='-E -o $@'
3461 OBJCC_O='-o $@'
3462 X86ASM_O='-o $@'
3463 LD_O='-o $@'
3464 LD_LIB='-l%'
3465 LD_PATH='-L'
3466 HOSTCC_C='-c'
3467 HOSTCC_E='-E -o $@'
3468 HOSTCC_O='-o $@'
3469 HOSTLD_O='-o $@'
3470 NVCC_C='-c'
3471 NVCC_O='-o $@'
3472
3473 host_extralibs='-lm'
3474 host_cflags_filter=echo
3475 host_ldflags_filter=echo
3476
3477 target_path='$(CURDIR)'
3478
3479 # since the object filename is not given with the -MM flag, the compiler
3480 # is only able to print the basename, and we must add the path ourselves
3481 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3482 DEPFLAGS='-MM'
3483
3484 mkdir -p ffbuild
3485
3486 # find source path
3487 if test -f configure; then
3488     source_path=.
3489 else
3490     source_path=$(cd $(dirname "$0"); pwd)
3491     case "$source_path" in
3492         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3493     esac
3494     test -e "$source_path/config.h" &&
3495         die "Out of tree builds are impossible with config.h in source dir."
3496 fi
3497
3498 for v in "$@"; do
3499     r=${v#*=}
3500     l=${v%"$r"}
3501     r=$(sh_quote "$r")
3502     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3503 done
3504
3505 find_things(){
3506     thing=$1
3507     pattern=$2
3508     file=$source_path/$3
3509     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3510 }
3511
3512 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3513 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3514 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3515 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3516 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3517 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3518 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3519 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3520 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3521
3522 find_things_extern(){
3523     thing=$1
3524     pattern=$2
3525     file=$source_path/$3
3526     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3527 }
3528
3529 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3530 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3531
3532 AVCODEC_COMPONENTS_LIST="
3533     $BSF_LIST
3534     $DECODER_LIST
3535     $ENCODER_LIST
3536     $HWACCEL_LIST
3537     $PARSER_LIST
3538 "
3539
3540 AVDEVICE_COMPONENTS_LIST="
3541     $INDEV_LIST
3542     $OUTDEV_LIST
3543 "
3544
3545 AVFILTER_COMPONENTS_LIST="
3546     $FILTER_LIST
3547 "
3548
3549 AVFORMAT_COMPONENTS_LIST="
3550     $DEMUXER_LIST
3551     $MUXER_LIST
3552     $PROTOCOL_LIST
3553 "
3554
3555 ALL_COMPONENTS="
3556     $AVCODEC_COMPONENTS_LIST
3557     $AVDEVICE_COMPONENTS_LIST
3558     $AVFILTER_COMPONENTS_LIST
3559     $AVFORMAT_COMPONENTS_LIST
3560 "
3561
3562 for n in $COMPONENT_LIST; do
3563     v=$(toupper ${n%s})_LIST
3564     eval enable \$$v
3565     eval ${n}_if_any="\$$v"
3566 done
3567
3568 enable $ARCH_EXT_LIST
3569
3570 die_unknown(){
3571     echo "Unknown option \"$1\"."
3572     echo "See $0 --help for available options."
3573     exit 1
3574 }
3575
3576 print_in_columns() {
3577     cols=$(expr $ncols / 24)
3578     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3579 }
3580
3581 show_list() {
3582     suffix=_$1
3583     shift
3584     echo $* | sed s/$suffix//g | print_in_columns
3585     exit 0
3586 }
3587
3588 rand_list(){
3589     IFS=', '
3590     set -- $*
3591     unset IFS
3592     for thing; do
3593         comp=${thing%:*}
3594         prob=${thing#$comp}
3595         prob=${prob#:}
3596         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3597         echo "prob ${prob:-0.5}"
3598         printf '%s\n' $comp
3599     done
3600 }
3601
3602 do_random(){
3603     action=$1
3604     shift
3605     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3606     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3607 }
3608
3609 for opt do
3610     optval="${opt#*=}"
3611     case "$opt" in
3612         --extra-ldflags=*)
3613             add_ldflags $optval
3614         ;;
3615         --extra-ldexeflags=*)
3616             add_ldexeflags $optval
3617         ;;
3618         --extra-ldsoflags=*)
3619             add_ldsoflags $optval
3620         ;;
3621         --extra-ldlibflags=*)
3622             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3623                  "removed in the future. Use --extra-ldsoflags instead."
3624             add_ldsoflags $optval
3625         ;;
3626         --extra-libs=*)
3627             add_extralibs $optval
3628         ;;
3629         --disable-devices)
3630             disable $INDEV_LIST $OUTDEV_LIST
3631         ;;
3632         --enable-debug=*)
3633             debuglevel="$optval"
3634         ;;
3635         --disable-programs)
3636             disable $PROGRAM_LIST
3637         ;;
3638         --disable-everything)
3639             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3640         ;;
3641         --disable-all)
3642             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3643             disable $LIBRARY_LIST $PROGRAM_LIST doc
3644             enable avutil
3645         ;;
3646         --enable-random|--disable-random)
3647             action=${opt%%-random}
3648             do_random ${action#--} $COMPONENT_LIST
3649         ;;
3650         --enable-random=*|--disable-random=*)
3651             action=${opt%%-random=*}
3652             do_random ${action#--} $optval
3653         ;;
3654         --enable-sdl)
3655             enable sdl2
3656         ;;
3657         --enable-*=*|--disable-*=*)
3658             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3659             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3660             eval list=\$$(toupper $thing)_LIST
3661             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3662             list=$(filter "$name" $list)
3663             [ "$list" = "" ] && warn "Option $opt did not match anything"
3664             $action $list
3665         ;;
3666         --enable-yasm|--disable-yasm)
3667             warn "The ${opt} option is only provided for compatibility and will be\n"\
3668                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3669             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3670         ;;
3671         --yasmexe=*)
3672             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3673                  "removed in the future. Use --x86asmexe instead."
3674             x86asmexe="$optval"
3675         ;;
3676         --enable-?*|--disable-?*)
3677             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3678             if is_in $option $COMPONENT_LIST; then
3679                 test $action = disable && action=unset
3680                 eval $action \$$(toupper ${option%s})_LIST
3681             elif is_in $option $CMDLINE_SELECT; then
3682                 $action $option
3683             else
3684                 die_unknown $opt
3685             fi
3686         ;;
3687         --list-*)
3688             NAME="${opt#--list-}"
3689             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3690             NAME=${NAME%s}
3691             eval show_list $NAME \$$(toupper $NAME)_LIST
3692         ;;
3693         --help|-h) show_help
3694         ;;
3695         --quiet|-q) quiet=yes
3696         ;;
3697         --fatal-warnings) enable fatal_warnings
3698         ;;
3699         --libfuzzer=*)
3700             libfuzzer_path="$optval"
3701         ;;
3702         *)
3703             optname="${opt%%=*}"
3704             optname="${optname#--}"
3705             optname=$(echo "$optname" | sed 's/-/_/g')
3706             if is_in $optname $CMDLINE_SET; then
3707                 eval $optname='$optval'
3708             elif is_in $optname $CMDLINE_APPEND; then
3709                 append $optname "$optval"
3710             else
3711                 die_unknown $opt
3712             fi
3713         ;;
3714     esac
3715 done
3716
3717 for e in $env; do
3718     eval "export $e"
3719 done
3720
3721 if disabled autodetect; then
3722
3723     # Unless iconv is explicitely disabled by the user, we still want to probe
3724     # for the iconv from the libc.
3725     disabled iconv || enable libc_iconv
3726
3727     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3728     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3729 fi
3730 # Mark specifically enabled, but normally autodetected libraries as requested.
3731 for lib in $AUTODETECT_LIBS; do
3732     enabled $lib && request $lib
3733 done
3734 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3735 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3736 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3737
3738 disabled logging && logfile=/dev/null
3739
3740 die_license_disabled() {
3741     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3742 }
3743
3744 die_license_disabled_gpl() {
3745     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3746 }
3747
3748 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3749 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3750
3751 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3752 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3753
3754 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3755
3756 enabled_all gnutls openssl &&
3757     die "GnuTLS and OpenSSL must not be enabled at the same time."
3758
3759 # Disable all the library-specific components if the library itself
3760 # is disabled, see AVCODEC_LIST and following _LIST variables.
3761
3762 disable_components(){
3763     disabled ${1} && disable $(
3764         eval components="\$$(toupper ${1})_COMPONENTS"
3765         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3766     )
3767 }
3768
3769 map 'disable_components $v' $LIBRARY_LIST
3770
3771 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3772 set >> $logfile
3773
3774 test -n "$valgrind" && toolchain="valgrind-memcheck"
3775
3776 enabled ossfuzz && {
3777     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3778     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3779 }
3780
3781 case "$toolchain" in
3782     *-asan)
3783         cc_default="${toolchain%-asan}"
3784         add_cflags  -fsanitize=address
3785         add_ldflags -fsanitize=address
3786     ;;
3787     *-msan)
3788         cc_default="${toolchain%-msan}"
3789         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3790         add_ldflags -fsanitize=memory
3791     ;;
3792     *-tsan)
3793         cc_default="${toolchain%-tsan}"
3794         add_cflags  -fsanitize=thread -fPIE
3795         add_ldflags -fsanitize=thread -pie
3796         case "$toolchain" in
3797             gcc-tsan)
3798                 add_cflags  -fPIC
3799                 add_ldflags -fPIC
3800                 ;;
3801         esac
3802     ;;
3803     *-usan)
3804         cc_default="${toolchain%-usan}"
3805         add_cflags  -fsanitize=undefined
3806         add_ldflags -fsanitize=undefined
3807     ;;
3808     valgrind-*)
3809         target_exec_default="valgrind"
3810         case "$toolchain" in
3811             valgrind-massif)
3812                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3813                 ;;
3814             valgrind-memcheck)
3815                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3816                 ;;
3817         esac
3818     ;;
3819     msvc)
3820         # Check whether the current MSVC version needs the C99 converter.
3821         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3822         # support enough of C99 to build ffmpeg. Default to the new
3823         # behaviour if the regexp was unable to match anything, since this
3824         # successfully parses the version number of existing supported
3825         # versions that require the converter (MSVC 2010 and 2012).
3826         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3827         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3828             cc_default="cl"
3829             cxx_default="cl"
3830         else
3831             cc_default="c99wrap cl"
3832             cxx_default="c99wrap cl"
3833         fi
3834         ld_default="$source_path/compat/windows/mslink"
3835         nm_default="dumpbin -symbols"
3836         ar_default="lib"
3837         case "$arch" in
3838         arm*)
3839             as_default="armasm"
3840             ;;
3841         esac
3842         target_os_default="win32"
3843         # Use a relative path for TMPDIR. This makes sure all the
3844         # ffconf temp files are written with a relative path, avoiding
3845         # issues with msys/win32 path conversion for MSVC parameters
3846         # such as -Fo<file> or -out:<file>.
3847         TMPDIR=.
3848     ;;
3849     icl)
3850         cc_default="icl"
3851         ld_default="xilink"
3852         nm_default="dumpbin -symbols"
3853         ar_default="xilib"
3854         target_os_default="win32"
3855         TMPDIR=.
3856     ;;
3857     gcov)
3858         add_cflags  -fprofile-arcs -ftest-coverage
3859         add_ldflags -fprofile-arcs -ftest-coverage
3860     ;;
3861     llvm-cov)
3862         add_cflags -fprofile-arcs -ftest-coverage
3863         add_ldflags --coverage
3864     ;;
3865     hardened)
3866         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3867         add_cflags   -fno-strict-overflow -fstack-protector-all
3868         add_ldflags  -Wl,-z,relro -Wl,-z,now
3869         add_cflags   -fPIE
3870         add_ldexeflags -fPIE -pie
3871     ;;
3872     ?*)
3873         die "Unknown toolchain $toolchain"
3874     ;;
3875 esac
3876
3877 test -n "$cross_prefix" && enable cross_compile
3878
3879 if enabled cross_compile; then
3880     test -n "$arch" && test -n "$target_os" ||
3881         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3882 fi
3883
3884 ar_default="${cross_prefix}${ar_default}"
3885 cc_default="${cross_prefix}${cc_default}"
3886 cxx_default="${cross_prefix}${cxx_default}"
3887 nm_default="${cross_prefix}${nm_default}"
3888 pkg_config_default="${cross_prefix}${pkg_config_default}"
3889 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3890     ranlib_default="${cross_prefix}${ranlib_default} -D"
3891 else
3892     ranlib_default="${cross_prefix}${ranlib_default}"
3893 fi
3894 strip_default="${cross_prefix}${strip_default}"
3895 windres_default="${cross_prefix}${windres_default}"
3896
3897 sysinclude_default="${sysroot}/usr/include"
3898
3899 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3900     target_exec target_os x86asmexe nvcc
3901 enabled cross_compile || host_cc_default=$cc
3902 set_default host_cc
3903
3904 pkg_config_fail_message=""
3905 if ! $pkg_config --version >/dev/null 2>&1; then
3906     warn "$pkg_config not found, library detection may fail."
3907     pkg_config=false
3908 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3909     pkg_config_fail_message="
3910 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3911 fi
3912
3913 if test $doxygen != $doxygen_default && \
3914   ! $doxygen --version >/dev/null 2>&1; then
3915     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3916 fi
3917
3918 exesuf() {
3919     case $1 in
3920         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3921     esac
3922 }
3923
3924 EXESUF=$(exesuf $target_os)
3925 HOSTEXESUF=$(exesuf $host_os)
3926
3927 # set temporary file name
3928 : ${TMPDIR:=$TEMPDIR}
3929 : ${TMPDIR:=$TMP}
3930 : ${TMPDIR:=/tmp}
3931
3932 if [ -n "$tempprefix" ] ; then
3933     mktemp(){
3934         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3935         echo "$tmpname"
3936         mkdir "$tmpname"
3937     }
3938 elif ! check_cmd mktemp -u XXXXXX; then
3939     # simple replacement for missing mktemp
3940     # NOT SAFE FOR GENERAL USE
3941     mktemp(){
3942         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3943         echo "$tmpname"
3944         mkdir "$tmpname"
3945     }
3946 fi
3947
3948 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3949     die "Unable to create temporary directory in $TMPDIR."
3950
3951 tmpfile(){
3952     tmp="${FFTMPDIR}/test"$2
3953     (set -C; exec > $tmp) 2> /dev/null ||
3954         die "Unable to create temporary file in $FFTMPDIR."
3955     eval $1=$tmp
3956 }
3957
3958 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3959 trap 'exit 2' INT
3960
3961 tmpfile TMPASM .asm
3962 tmpfile TMPC   .c
3963 tmpfile TMPCPP .cpp
3964 tmpfile TMPE   $EXESUF
3965 tmpfile TMPH   .h
3966 tmpfile TMPM   .m
3967 tmpfile TMPO   .o
3968 tmpfile TMPS   .S
3969 tmpfile TMPSH  .sh
3970 tmpfile TMPV   .ver
3971
3972 unset -f mktemp
3973
3974 chmod +x $TMPE
3975
3976 # make sure we can execute files in $TMPDIR
3977 cat > $TMPSH 2>> $logfile <<EOF
3978 #! /bin/sh
3979 EOF
3980 chmod +x $TMPSH >> $logfile 2>&1
3981 if ! $TMPSH >> $logfile 2>&1; then
3982     cat <<EOF
3983 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3984 variable to another directory and make sure that it is not mounted noexec.
3985 EOF
3986     die "Sanity test failed."
3987 fi
3988
3989 armasm_flags(){
3990     for flag; do
3991         case $flag in
3992             # Filter out MSVC cl.exe options from cflags that shouldn't
3993             # be passed to gas-preprocessor
3994             -M[TD]*)                                            ;;
3995             *)                  echo $flag                      ;;
3996         esac
3997    done
3998 }
3999
4000 cparser_flags(){
4001     for flag; do
4002         case $flag in
4003             -Wno-switch)             echo -Wno-switch-enum ;;
4004             -Wno-format-zero-length) ;;
4005             -Wdisabled-optimization) ;;
4006             -Wno-pointer-sign)       echo -Wno-other ;;
4007             *)                       echo $flag ;;
4008         esac
4009     done
4010 }
4011
4012 msvc_common_flags(){
4013     for flag; do
4014         case $flag in
4015             # In addition to specifying certain flags under the compiler
4016             # specific filters, they must be specified here as well or else the
4017             # generic catch all at the bottom will print the original flag.
4018             -Wall)                ;;
4019             -Wextra)              ;;
4020             -std=c99)             ;;
4021             # Common flags
4022             -fomit-frame-pointer) ;;
4023             -g)                   echo -Z7 ;;
4024             -fno-math-errno)      ;;
4025             -fno-common)          ;;
4026             -fno-signed-zeros)    ;;
4027             -fPIC)                ;;
4028             -mthumb)              ;;
4029             -march=*)             ;;
4030             -lz)                  echo zlib.lib ;;
4031             -lx264)               echo libx264.lib ;;
4032             -lstdc++)             ;;
4033             -l*)                  echo ${flag#-l}.lib ;;
4034             -LARGEADDRESSAWARE)   echo $flag ;;
4035             -L*)                  echo -libpath:${flag#-L} ;;
4036             *)                    echo $flag ;;
4037         esac
4038     done
4039 }
4040
4041 msvc_flags(){
4042     msvc_common_flags "$@"
4043     for flag; do
4044         case $flag in
4045             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4046                                        -wd4554 ;;
4047             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4048                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4049                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4050                                        -wd4307 \
4051                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4052         esac
4053     done
4054 }
4055
4056 icl_flags(){
4057     msvc_common_flags "$@"
4058     for flag; do
4059         case $flag in
4060             # Despite what Intel's documentation says -Wall, which is supported
4061             # on Windows, does enable remarks so disable them here.
4062             -Wall)                echo $flag -Qdiag-disable:remark ;;
4063             -std=c99)             echo -Qstd=c99 ;;
4064             -flto)                echo -ipo ;;
4065         esac
4066     done
4067 }
4068
4069 icc_flags(){
4070     for flag; do
4071         case $flag in
4072             -flto)                echo -ipo ;;
4073             *)                    echo $flag ;;
4074         esac
4075     done
4076 }
4077
4078 pgi_flags(){
4079     for flag; do
4080         case $flag in
4081             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4082             -fomit-frame-pointer) echo -Mnoframe ;;
4083             -g)                   echo -gopt ;;
4084             *)                    echo $flag ;;
4085         esac
4086     done
4087 }
4088
4089 suncc_flags(){
4090     for flag; do
4091         case $flag in
4092             -march=*|-mcpu=*)
4093                 case "${flag#*=}" in
4094                     native)                   echo -xtarget=native       ;;
4095                     v9|niagara)               echo -xarch=sparc          ;;
4096                     ultrasparc)               echo -xarch=sparcvis       ;;
4097                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4098                     i586|pentium)             echo -xchip=pentium        ;;
4099                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4100                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4101                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4102                     pentium4*)          echo -xtarget=pentium4           ;;
4103                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4104                     *-sse3)             echo -xarch=sse3                 ;;
4105                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4106                     bonnell)                   echo -xarch=ssse3         ;;
4107                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4108                     westmere)                  echo -xtarget=westmere    ;;
4109                     silvermont)                echo -xarch=sse4_2        ;;
4110                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4111                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4112                                                echo -xarch=avx           ;;
4113                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4114                     btver1)                    echo -xarch=amdsse4a      ;;
4115                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4116                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4117                     k8|opteron|athlon64|athlon-fx)
4118                                                echo -xarch=sse2a         ;;
4119                     athlon*)                   echo -xarch=pentium_proa  ;;
4120                 esac
4121                 ;;
4122             -std=c99)             echo -xc99              ;;
4123             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4124             -fPIC)                echo -KPIC -xcode=pic32 ;;
4125             -W*,*)                echo $flag              ;;
4126             -f*-*|-W*|-mimpure-text)                      ;;
4127             -shared)              echo -G                 ;;
4128             *)                    echo $flag              ;;
4129         esac
4130     done
4131 }
4132
4133 tms470_flags(){
4134     for flag; do
4135         case $flag in
4136             -march=*|-mcpu=*)
4137                 case "${flag#*=}" in
4138                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4139                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4140                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4141                     armv6*|arm11*)          echo -mv=6   ;;
4142                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4143                                             echo -mv=5e  ;;
4144                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4145                 esac
4146                 ;;
4147             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4148             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4149             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4150             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4151             -msoft-float)   echo --float_support=vfplib       ;;
4152             -O[0-3]|-mf=*)  echo $flag                        ;;
4153             -g)             echo -g -mn                       ;;
4154             -pds=*)         echo $flag                        ;;
4155             -D*|-I*)        echo $flag                        ;;
4156             --gcc|--abi=*)  echo $flag                        ;;
4157             -me)            echo $flag                        ;;
4158         esac
4159     done
4160 }
4161
4162 probe_cc(){
4163     pfx=$1
4164     _cc=$2
4165     first=$3
4166
4167     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4168     unset _ld_o _ldflags _ld_lib _ld_path
4169     unset _depflags _DEPCMD _DEPFLAGS
4170     _flags_filter=echo
4171
4172     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4173         true # no-op to avoid reading stdin in following checks
4174     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4175         _type=llvm_gcc
4176         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4177         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4178         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4179         _cflags_speed='-O3'
4180         _cflags_size='-Os'
4181     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4182         _type=gcc
4183         gcc_version=$($_cc --version | head -n1)
4184         gcc_basever=$($_cc -dumpversion)
4185         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4186         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4187         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4188         case $gcc_basever in
4189             2) ;;
4190             2.*) ;;
4191             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4192         esac
4193         if [ "$first" = true ]; then
4194             case $gcc_basever in
4195                 4.2*)
4196                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4197             esac
4198         fi
4199         _cflags_speed='-O3'
4200         _cflags_size='-Os'
4201     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4202         _type=icc
4203         _ident=$($_cc --version | head -n1)
4204         _depflags='-MMD'
4205         _cflags_speed='-O3'
4206         _cflags_size='-Os'
4207         _cflags_noopt='-O1'
4208         _flags_filter=icc_flags
4209     elif $_cc -v 2>&1 | grep -q xlc; then
4210         _type=xlc
4211         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4212         _cflags_speed='-O5'
4213         _cflags_size='-O5 -qcompact'
4214     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4215         test -d "$sysroot" || die "No valid sysroot specified."
4216         _type=armcc
4217         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4218         armcc_conf="$PWD/armcc.conf"
4219         $_cc --arm_linux_configure                 \
4220              --arm_linux_config_file="$armcc_conf" \
4221              --configure_sysroot="$sysroot"        \
4222              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4223              die "Error creating armcc configuration file."
4224         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4225         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4226         as_default="${cross_prefix}gcc"
4227         _depflags='-MMD'
4228         _cflags_speed='-O3'
4229         _cflags_size='-Os'
4230     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4231         _type=tms470
4232         _ident=$($_cc -version | head -n1 | tr -s ' ')
4233         _flags='--gcc --abi=eabi -me'
4234         _cc_e='-ppl -fe=$@'
4235         _cc_o='-fe=$@'
4236         _depflags='-ppa -ppd=$(@:.o=.d)'
4237         _cflags_speed='-O3 -mf=5'
4238         _cflags_size='-O3 -mf=2'
4239         _flags_filter=tms470_flags
4240     elif $_cc -v 2>&1 | grep -q clang; then
4241         _type=clang
4242         _ident=$($_cc --version 2>/dev/null | head -n1)
4243         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4244         _cflags_speed='-O3'
4245         _cflags_size='-Oz'
4246     elif $_cc -V 2>&1 | grep -q Sun; then
4247         _type=suncc
4248         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4249         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4250         _DEPFLAGS='-xM1 -xc99'
4251         _ldflags='-std=c99'
4252         _cflags_speed='-O5'
4253         _cflags_size='-O5 -xspace'
4254         _flags_filter=suncc_flags
4255     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4256         _type=pathscale
4257         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4258         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4259         _cflags_speed='-O2'
4260         _cflags_size='-Os'
4261         _flags_filter='filter_out -Wdisabled-optimization'
4262     elif $_cc -v 2>&1 | grep -q Open64; then
4263         _type=open64
4264         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4265         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4266         _cflags_speed='-O2'
4267         _cflags_size='-Os'
4268         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4269     elif $_cc -V 2>&1 | grep -q Portland; then
4270         _type=pgi
4271         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4272         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4273         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4274         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4275         _cflags_noopt="-O"
4276         _flags_filter=pgi_flags
4277     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4278         _type=armasm
4279         _ident=$($_cc | head -n1)
4280         # 4509: "This form of conditional instruction is deprecated"
4281         _flags="-nologo -ignore 4509"
4282         _flags_filter=armasm_flags
4283     elif $_cc 2>&1 | grep -q Intel; then
4284         _type=icl
4285         _ident=$($_cc 2>&1 | head -n1)
4286         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4287         # Not only is O3 broken on 13.x+ but it is slower on all previous
4288         # versions (tested) as well.
4289         _cflags_speed="-O2"
4290         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4291         if $_cc 2>&1 | grep -q Linker; then
4292             _ld_o='-out:$@'
4293         else
4294             _ld_o='-Fe$@'
4295         fi
4296         _cc_o='-Fo$@'
4297         _cc_e='-P'
4298         _flags_filter=icl_flags
4299         _ld_lib='lib%.a'
4300         _ld_path='-libpath:'
4301         # -Qdiag-error to make icl error when seeing certain unknown arguments
4302         _flags='-nologo -Qdiag-error:4044,10157'
4303         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4304         # with MSVC which enables it by default.
4305         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4306         disable stripping
4307     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4308         # lld can emulate multiple different linkers; in ms link.exe mode,
4309         # the -? parameter gives the help output which contains an identifyable
4310         # string, while it gives an error in other modes.
4311         _type=lld-link
4312         # The link.exe mode doesn't have a switch for getting the version,
4313         # but we can force it back to gnu mode and get the version from there.
4314         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4315         _ld_o='-out:$@'
4316         _flags_filter=msvc_flags
4317         _ld_lib='lib%.a'
4318         _ld_path='-libpath:'
4319     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4320         _type=msvc
4321         _ident=$($_cc 2>&1 | head -n1)
4322         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4323         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4324         _cflags_speed="-O2"
4325         _cflags_size="-O1"
4326         _cflags_noopt="-O1"
4327         if $_cc -nologo- 2>&1 | grep -q Linker; then
4328             _ld_o='-out:$@'
4329         else
4330             _ld_o='-Fe$@'
4331         fi
4332         _cc_o='-Fo$@'
4333         _cc_e='-P -Fi$@'
4334         _flags_filter=msvc_flags
4335         _ld_lib='lib%.a'
4336         _ld_path='-libpath:'
4337         _flags='-nologo'
4338         disable stripping
4339     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4340         _type=cparser
4341         _ident=$($_cc --version | head -n1)
4342         _depflags='-MMD'
4343         _cflags_speed='-O4'
4344         _cflags_size='-O2'
4345         _flags_filter=cparser_flags
4346     fi
4347
4348     eval ${pfx}_type=\$_type
4349     eval ${pfx}_ident=\$_ident
4350 }
4351
4352 set_ccvars(){
4353     eval ${1}_C=\${_cc_c-\${${1}_C}}
4354     eval ${1}_E=\${_cc_e-\${${1}_E}}
4355     eval ${1}_O=\${_cc_o-\${${1}_O}}
4356
4357     if [ -n "$_depflags" ]; then
4358         eval ${1}_DEPFLAGS=\$_depflags
4359     else
4360         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4361         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4362         eval DEP${1}FLAGS=\$_flags
4363     fi
4364 }
4365
4366 probe_cc cc "$cc" "true"
4367 cflags_filter=$_flags_filter
4368 cflags_speed=$_cflags_speed
4369 cflags_size=$_cflags_size
4370 cflags_noopt=$_cflags_noopt
4371 add_cflags $_flags $_cflags
4372 cc_ldflags=$_ldflags
4373 set_ccvars CC
4374 set_ccvars CXX
4375
4376 probe_cc hostcc "$host_cc"
4377 host_cflags_filter=$_flags_filter
4378 host_cflags_speed=$_cflags_speed
4379 add_host_cflags  $_flags $_cflags
4380 set_ccvars HOSTCC
4381
4382 test -n "$cc_type" && enable $cc_type ||
4383     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4384
4385 : ${as_default:=$cc}
4386 : ${objcc_default:=$cc}
4387 : ${dep_cc_default:=$cc}
4388 : ${ld_default:=$cc}
4389 : ${host_ld_default:=$host_cc}
4390 set_default ar as objcc dep_cc ld ln_s host_ld windres
4391
4392 probe_cc as "$as"
4393 asflags_filter=$_flags_filter
4394 add_asflags $_flags $_cflags
4395 set_ccvars AS
4396
4397 probe_cc objcc "$objcc"
4398 objcflags_filter=$_flags_filter
4399 add_objcflags $_flags $_cflags
4400 set_ccvars OBJC
4401
4402 probe_cc ld "$ld"
4403 ldflags_filter=$_flags_filter
4404 add_ldflags $_flags $_ldflags
4405 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4406 LD_O=${_ld_o-$LD_O}
4407 LD_LIB=${_ld_lib-$LD_LIB}
4408 LD_PATH=${_ld_path-$LD_PATH}
4409
4410 probe_cc hostld "$host_ld"
4411 host_ldflags_filter=$_flags_filter
4412 add_host_ldflags $_flags $_ldflags
4413 HOSTLD_O=${_ld_o-$HOSTLD_O}
4414
4415 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4416     probe_cc depcc "$dep_cc"
4417     CCDEP=${_DEPCMD:-$DEPCMD}
4418     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4419     DEPCCFLAGS=$_flags
4420 fi
4421
4422 if $ar 2>&1 | grep -q Microsoft; then
4423     arflags="-nologo"
4424     ar_o='-out:$@'
4425 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4426     arflags="rq"
4427     ar_o='$@'
4428 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4429     arflags='-Xany -r -c'
4430     ar_o='$@'
4431 elif $ar 2>&1 | grep -q "\[D\] "; then
4432     arflags="rcD"
4433     ar_o='$@'
4434 else
4435     arflags="rc"
4436     ar_o='$@'
4437 fi
4438
4439 add_cflags $extra_cflags
4440 add_cxxflags $extra_cxxflags
4441 add_objcflags $extra_objcflags
4442 add_asflags $extra_cflags
4443
4444 if test -n "$sysroot"; then
4445     case "$cc_type" in
4446         gcc|llvm_gcc|clang)
4447             add_cppflags --sysroot="$sysroot"
4448             add_ldflags --sysroot="$sysroot"
4449         ;;
4450         tms470)
4451             add_cppflags -I"$sysinclude"
4452             add_ldflags  --sysroot="$sysroot"
4453         ;;
4454     esac
4455 fi
4456
4457 if test "$cpu" = host; then
4458     enabled cross_compile &&
4459         die "--cpu=host makes no sense when cross-compiling."
4460
4461     case "$cc_type" in
4462         gcc|llvm_gcc)
4463             check_native(){
4464                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4465                 sed -n "/cc1.*$1=/{
4466                             s/.*$1=\\([^ ]*\\).*/\\1/
4467                             p
4468                             q
4469                         }" $TMPE
4470             }
4471             cpu=$(check_native -march || check_native -mcpu)
4472         ;;
4473         clang)
4474             check_native(){
4475                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4476                 sed -n "/cc1.*-target-cpu /{
4477                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4478                             p
4479                             q
4480                         }" $TMPE
4481             }
4482             cpu=$(check_native -march)
4483         ;;
4484     esac
4485
4486     test "${cpu:-host}" = host &&
4487         die "--cpu=host not supported with compiler $cc"
4488 fi
4489
4490 # Deal with common $arch aliases
4491 case "$arch" in
4492     aarch64|arm64)
4493         arch="aarch64"
4494     ;;
4495     arm*|iPad*|iPhone*)
4496         arch="arm"
4497     ;;
4498     mips*|IP*)
4499         case "$arch" in
4500         *el)
4501             add_cppflags -EL
4502             add_ldflags -EL
4503         ;;
4504         *eb)
4505             add_cppflags -EB
4506             add_ldflags -EB
4507         ;;
4508         esac
4509         arch="mips"
4510     ;;
4511     parisc*|hppa*)
4512         arch="parisc"
4513     ;;
4514     "Power Macintosh"|ppc*|powerpc*)
4515         arch="ppc"
4516     ;;
4517     s390|s390x)
4518         arch="s390"
4519     ;;
4520     sh4|sh)
4521         arch="sh4"
4522     ;;
4523     sun4*|sparc*)
4524         arch="sparc"
4525     ;;
4526     tilegx|tile-gx)
4527         arch="tilegx"
4528     ;;
4529     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4530         arch="x86"
4531     ;;
4532 esac
4533
4534 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4535 enable $arch
4536
4537 # Add processor-specific flags
4538 if enabled aarch64; then
4539
4540     case $cpu in
4541         armv*)
4542             cpuflags="-march=$cpu"
4543         ;;
4544         *)
4545             cpuflags="-mcpu=$cpu"
4546         ;;
4547     esac
4548
4549 elif enabled alpha; then
4550
4551     cpuflags="-mcpu=$cpu"
4552
4553 elif enabled arm; then
4554
4555     check_arm_arch() {
4556         check_cpp_condition stddef.h \
4557             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4558             $cpuflags
4559     }
4560
4561     probe_arm_arch() {
4562         if   check_arm_arch 4;        then echo armv4
4563         elif check_arm_arch 4T;       then echo armv4t
4564         elif check_arm_arch 5;        then echo armv5
4565         elif check_arm_arch 5E;       then echo armv5e
4566         elif check_arm_arch 5T;       then echo armv5t
4567         elif check_arm_arch 5TE;      then echo armv5te
4568         elif check_arm_arch 5TEJ;     then echo armv5te
4569         elif check_arm_arch 6;        then echo armv6
4570         elif check_arm_arch 6J;       then echo armv6j
4571         elif check_arm_arch 6K;       then echo armv6k
4572         elif check_arm_arch 6Z;       then echo armv6z
4573         elif check_arm_arch 6ZK;      then echo armv6zk
4574         elif check_arm_arch 6T2;      then echo armv6t2
4575         elif check_arm_arch 7;        then echo armv7
4576         elif check_arm_arch 7A  7_A;  then echo armv7-a
4577         elif check_arm_arch 7S;       then echo armv7-a
4578         elif check_arm_arch 7R  7_R;  then echo armv7-r
4579         elif check_arm_arch 7M  7_M;  then echo armv7-m
4580         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4581         elif check_arm_arch 8A  8_A;  then echo armv8-a
4582         fi
4583     }
4584
4585     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4586
4587     case $cpu in
4588         armv*)
4589             cpuflags="-march=$cpu"
4590             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4591         ;;
4592         *)
4593             cpuflags="-mcpu=$cpu"
4594             case $cpu in
4595                 cortex-a*)                               subarch=armv7a  ;;
4596                 cortex-r*)                               subarch=armv7r  ;;
4597                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4598                 arm11*)                                  subarch=armv6   ;;
4599                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4600                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4601                 *)                             subarch=$(probe_arm_arch) ;;
4602             esac
4603         ;;
4604     esac
4605
4606     case "$subarch" in
4607         armv5t*)    enable fast_clz                ;;
4608         armv[6-8]*)
4609             enable fast_clz
4610             disabled fast_unaligned || enable fast_unaligned
4611             ;;
4612     esac
4613
4614 elif enabled avr32; then
4615
4616     case $cpu in
4617         ap7[02]0[0-2])
4618             subarch="avr32_ap"
4619             cpuflags="-mpart=$cpu"
4620         ;;
4621         ap)
4622             subarch="avr32_ap"
4623             cpuflags="-march=$cpu"
4624         ;;
4625         uc3[ab]*)
4626             subarch="avr32_uc"
4627             cpuflags="-mcpu=$cpu"
4628         ;;
4629         uc)
4630             subarch="avr32_uc"
4631             cpuflags="-march=$cpu"
4632         ;;
4633     esac
4634
4635 elif enabled bfin; then
4636
4637     cpuflags="-mcpu=$cpu"
4638
4639 elif enabled mips; then
4640
4641     cpuflags="-march=$cpu"
4642
4643     if [ "$cpu" != "generic" ]; then
4644         disable mips32r2
4645         disable mips32r5
4646         disable mips64r2
4647         disable mips32r6
4648         disable mips64r6
4649         disable loongson2
4650         disable loongson3
4651
4652         case $cpu in
4653             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4654                 enable mips32r2
4655                 disable msa
4656             ;;
4657             p5600|i6400|p6600)
4658                 disable mipsdsp
4659                 disable mipsdspr2
4660             ;;
4661             loongson*)
4662                 enable loongson2
4663                 enable loongson3
4664                 enable local_aligned
4665                 enable simd_align_16
4666                 enable fast_64bit
4667                 enable fast_clz
4668                 enable fast_cmov
4669                 enable fast_unaligned
4670                 disable aligned_stack
4671                 disable mipsfpu
4672                 disable mipsdsp
4673                 disable mipsdspr2
4674                 case $cpu in
4675                     loongson3*)
4676                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4677                     ;;
4678                     loongson2e)
4679                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4680                     ;;
4681                     loongson2f)
4682                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4683                     ;;
4684                 esac
4685             ;;
4686             *)
4687                 # Unknown CPU. Disable everything.
4688                 warn "unknown CPU. Disabling all MIPS optimizations."
4689                 disable mipsfpu
4690                 disable mipsdsp
4691                 disable mipsdspr2
4692                 disable msa
4693                 disable mmi
4694             ;;
4695         esac
4696
4697         case $cpu in
4698             24kc)
4699                 disable mipsfpu
4700                 disable mipsdsp
4701                 disable mipsdspr2
4702             ;;
4703             24kf*)
4704                 disable mipsdsp
4705                 disable mipsdspr2
4706             ;;
4707             24kec|34kc|1004kc)
4708                 disable mipsfpu
4709                 disable mipsdspr2
4710             ;;
4711             24kef*|34kf*|1004kf*)
4712                 disable mipsdspr2
4713             ;;
4714             74kc)
4715                 disable mipsfpu
4716             ;;
4717             p5600)
4718                 enable mips32r5
4719                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4720             ;;
4721             i6400)
4722                 enable mips64r6
4723                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4724             ;;
4725             p6600)
4726                 enable mips64r6
4727                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4728             ;;
4729         esac
4730     else
4731         # We do not disable anything. Is up to the user to disable the unwanted features.
4732         warn 'generic cpu selected'
4733     fi
4734
4735 elif enabled ppc; then
4736
4737     disable ldbrx
4738
4739     case $(tolower $cpu) in
4740         601|ppc601|powerpc601)
4741             cpuflags="-mcpu=601"
4742             disable altivec
4743         ;;
4744         603*|ppc603*|powerpc603*)
4745             cpuflags="-mcpu=603"
4746             disable altivec
4747         ;;
4748         604*|ppc604*|powerpc604*)
4749             cpuflags="-mcpu=604"
4750             disable altivec
4751         ;;
4752         g3|75*|ppc75*|powerpc75*)
4753             cpuflags="-mcpu=750"
4754             disable altivec
4755         ;;
4756         g4|745*|ppc745*|powerpc745*)
4757             cpuflags="-mcpu=7450"
4758             disable vsx
4759         ;;
4760         74*|ppc74*|powerpc74*)
4761             cpuflags="-mcpu=7400"
4762             disable vsx
4763         ;;
4764         g5|970|ppc970|powerpc970)
4765             cpuflags="-mcpu=970"
4766             disable vsx
4767         ;;
4768         power[3-6]*)
4769             cpuflags="-mcpu=$cpu"
4770             disable vsx
4771         ;;
4772         power[7-8]*)
4773             cpuflags="-mcpu=$cpu"
4774         ;;
4775         cell)
4776             cpuflags="-mcpu=cell"
4777             enable ldbrx
4778             disable vsx
4779         ;;
4780         e500mc)
4781             cpuflags="-mcpu=e500mc"
4782             disable altivec
4783         ;;
4784         e500v2)
4785             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4786             disable altivec
4787             disable dcbzl
4788         ;;
4789         e500)
4790             cpuflags="-mcpu=8540 -mhard-float"
4791             disable altivec
4792             disable dcbzl
4793         ;;
4794     esac
4795
4796 elif enabled sparc; then
4797
4798     case $cpu in
4799         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4800             cpuflags="-mcpu=$cpu"
4801         ;;
4802         ultrasparc*|niagara[234])
4803             cpuflags="-mcpu=$cpu"
4804         ;;
4805     esac
4806
4807 elif enabled x86; then
4808
4809     case $cpu in
4810         i[345]86|pentium)
4811             cpuflags="-march=$cpu"
4812             disable i686
4813             disable mmx
4814         ;;
4815         # targets that do NOT support nopl and conditional mov (cmov)
4816         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4817             cpuflags="-march=$cpu"
4818             disable i686
4819         ;;
4820         # targets that do support nopl and conditional mov (cmov)
4821         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4822         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4823         |amdfam10|barcelona|b[dt]ver*|znver*)
4824             cpuflags="-march=$cpu"
4825             enable i686
4826             enable fast_cmov
4827         ;;
4828         # targets that do support conditional mov but on which it's slow
4829         pentium4|pentium4m|prescott|nocona)
4830             cpuflags="-march=$cpu"
4831             enable i686
4832             disable fast_cmov
4833         ;;
4834     esac
4835
4836 fi
4837
4838 if [ "$cpu" != generic ]; then
4839     add_cflags  $cpuflags
4840     add_asflags $cpuflags
4841     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4842 fi
4843
4844 # compiler sanity check
4845 check_exec <<EOF
4846 int main(void){ return 0; }
4847 EOF
4848 if test "$?" != 0; then
4849     echo "$cc is unable to create an executable file."
4850     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4851         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4852         echo "Only do this if you know what cross compiling means."
4853     fi
4854     die "C compiler test failed."
4855 fi
4856
4857 add_cppflags -D_ISOC99_SOURCE
4858 add_cxxflags -D__STDC_CONSTANT_MACROS
4859 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4860
4861 # some compilers silently accept -std=c11, so we also need to check that the
4862 # version macro is defined properly
4863 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
4864     add_cflags -std=c11 ||
4865     check_cflags -std=c99
4866
4867 check_cppflags -D_FILE_OFFSET_BITS=64
4868 check_cppflags -D_LARGEFILE_SOURCE
4869
4870 add_host_cppflags -D_ISOC99_SOURCE
4871 check_host_cflags -std=c99
4872 check_host_cflags -Wall
4873 check_host_cflags $host_cflags_speed
4874
4875 check_64bit(){
4876     arch32=$1
4877     arch64=$2
4878     expr=$3
4879     check_code cc "" "int test[2*($expr) - 1]" &&
4880         subarch=$arch64 || subarch=$arch32
4881 }
4882
4883 case "$arch" in
4884     aarch64|alpha|ia64)
4885         spic=$shared
4886  &nb