Merge commit '90265814f993098d79b0a0f40745ecdb403fbf56'
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libnut          enable NUT (de)muxing via libnut,
238                            native (de)muxer exists [no]
239   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
240   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
241   --enable-libopencv       enable video filtering via libopencv [no]
242   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
243   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
244   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
245   --enable-libopus         enable Opus de/encoding via libopus [no]
246   --enable-libpulse        enable Pulseaudio input via libpulse [no]
247   --enable-librubberband   enable rubberband needed for rubberband filter [no]
248   --enable-librtmp         enable RTMP[E] support via librtmp [no]
249   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
250   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
251   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
252   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
253   --enable-libsoxr         enable Include libsoxr resampling [no]
254   --enable-libspeex        enable Speex de/encoding via libspeex [no]
255   --enable-libssh          enable SFTP protocol via libssh [no]
256   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
257   --enable-libtheora       enable Theora encoding via libtheora [no]
258   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
259   --enable-libv4l2         enable libv4l2/v4l-utils [no]
260   --enable-libvidstab      enable video stabilization using vid.stab [no]
261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
263                            native implementation exists [no]
264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
266   --enable-libwebp         enable WebP encoding via libwebp [no]
267   --enable-libx264         enable H.264 encoding via x264 [no]
268   --enable-libx265         enable HEVC encoding via x265 [no]
269   --enable-libxavs         enable AVS encoding via xavs [no]
270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
274   --enable-libxvid         enable Xvid encoding via xvidcore,
275                            native MPEG-4/Xvid encoder exists [no]
276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
277   --enable-libzmq          enable message passing via libzmq [no]
278   --enable-libzvbi         enable teletext support via libzvbi [no]
279   --disable-lzma           disable lzma [autodetect]
280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
281   --enable-mediacodec      enable Android MediaCodec support [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl2           disable sdl2 [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --disable-xlib           disable xlib [autodetect]
294   --disable-zlib           disable zlib [autodetect]
295
296   The following libraries provide various hardware acceleration features:
297   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
298   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
299   --disable-cuvid          disable Nvidia CUVID support [autodetect]
300   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
301   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
302   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
303   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
304   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
305   --disable-nvenc          disable Nvidia video encoding code [autodetect]
306   --enable-omx             enable OpenMAX IL code [no]
307   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
308   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
309   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
310   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
311   --disable-videotoolbox   disable VideoToolbox code [autodetect]
312
313 Toolchain options:
314   --arch=ARCH              select architecture [$arch]
315   --cpu=CPU                select the minimum required CPU (affects
316                            instruction selection, may crash on older CPUs)
317   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
318   --progs-suffix=SUFFIX    program name suffix []
319   --enable-cross-compile   assume a cross-compiler is used
320   --sysroot=PATH           root of cross-build tree
321   --sysinclude=PATH        location of cross-build system headers
322   --target-os=OS           compiler targets OS [$target_os]
323   --target-exec=CMD        command to run executables on target
324   --target-path=DIR        path to view of build directory on target
325   --target-samples=DIR     path to samples directory on target
326   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
327   --toolchain=NAME         set tool defaults according to NAME
328   --nm=NM                  use nm tool NM [$nm_default]
329   --ar=AR                  use archive tool AR [$ar_default]
330   --as=AS                  use assembler AS [$as_default]
331   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
332   --strip=STRIP            use strip tool STRIP [$strip_default]
333   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
334   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
335   --cc=CC                  use C compiler CC [$cc_default]
336   --cxx=CXX                use C compiler CXX [$cxx_default]
337   --objcc=OCC              use ObjC compiler OCC [$cc_default]
338   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
339   --ld=LD                  use linker LD [$ld_default]
340   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
341   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
342   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
343   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
344   --host-cc=HOSTCC         use host C compiler HOSTCC
345   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
346   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
347   --host-ld=HOSTLD         use host linker HOSTLD
348   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
349   --host-libs=HLIBS        use libs HLIBS when linking for host
350   --host-os=OS             compiler host OS [$target_os]
351   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
352   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
353   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
354   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
355   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
356   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
357   --extra-libs=ELIBS       add ELIBS [$ELIBS]
358   --extra-version=STRING   version string suffix []
359   --optflags=OPTFLAGS      override optimization-related compiler flags
360   --build-suffix=SUFFIX    library name suffix []
361   --enable-pic             build position-independent code
362   --enable-thumb           compile for Thumb instruction set
363   --enable-lto             use link-time optimization
364   --env="ENV=override"     override the environment variables
365
366 Advanced options (experts only):
367   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
368   --custom-allocator=NAME  use a supported custom allocator
369   --disable-symver         disable symbol versioning
370   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
371   --disable-safe-bitstream-reader
372                            disable buffer boundary checking in bitreaders
373                            (faster, but may crash)
374   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
375
376 Optimization options (experts only):
377   --disable-asm            disable all assembly optimizations
378   --disable-altivec        disable AltiVec optimizations
379   --disable-vsx            disable VSX optimizations
380   --disable-power8         disable POWER8 optimizations
381   --disable-amd3dnow       disable 3DNow! optimizations
382   --disable-amd3dnowext    disable 3DNow! extended optimizations
383   --disable-mmx            disable MMX optimizations
384   --disable-mmxext         disable MMXEXT optimizations
385   --disable-sse            disable SSE optimizations
386   --disable-sse2           disable SSE2 optimizations
387   --disable-sse3           disable SSE3 optimizations
388   --disable-ssse3          disable SSSE3 optimizations
389   --disable-sse4           disable SSE4 optimizations
390   --disable-sse42          disable SSE4.2 optimizations
391   --disable-avx            disable AVX optimizations
392   --disable-xop            disable XOP optimizations
393   --disable-fma3           disable FMA3 optimizations
394   --disable-fma4           disable FMA4 optimizations
395   --disable-avx2           disable AVX2 optimizations
396   --disable-aesni          disable AESNI optimizations
397   --disable-armv5te        disable armv5te optimizations
398   --disable-armv6          disable armv6 optimizations
399   --disable-armv6t2        disable armv6t2 optimizations
400   --disable-vfp            disable VFP optimizations
401   --disable-neon           disable NEON optimizations
402   --disable-inline-asm     disable use of inline assembly
403   --disable-yasm           disable use of nasm/yasm assembly
404   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
405   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
406   --disable-msa            disable MSA optimizations
407   --disable-mipsfpu        disable floating point MIPS optimizations
408   --disable-mmi            disable Loongson SIMD optimizations
409   --disable-fast-unaligned consider unaligned accesses slow
410
411 Developer options (useful when working on FFmpeg itself):
412   --disable-debug          disable debugging symbols
413   --enable-debug=LEVEL     set the debug level [$debuglevel]
414   --disable-optimizations  disable compiler optimizations
415   --enable-extra-warnings  enable more compiler warnings
416   --disable-stripping      disable stripping of executables and shared libraries
417   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
418                            2 causes a slowdown at runtime.
419   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
420   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
421                            leaks and errors, using the specified valgrind binary.
422                            Cannot be combined with --target-exec
423   --enable-ftrapv          Trap arithmetic overflows
424   --samples=PATH           location of test samples for FATE, if not set use
425                            \$FATE_SAMPLES at make invocation time.
426   --enable-neon-clobber-test check NEON registers for clobbering (should be
427                            used only for debugging purposes)
428   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
429                            should be used only for debugging purposes)
430   --enable-random          randomly enable/disable components
431   --disable-random
432   --enable-random=LIST     randomly enable/disable specific components or
433   --disable-random=LIST    component groups. LIST is a comma-separated list
434                            of NAME[:PROB] entries where NAME is a component
435                            (group) and PROB the probability associated with
436                            NAME (default 0.5).
437   --random-seed=VALUE      seed value for --enable/disable-random
438   --disable-valgrind-backtrace do not print a backtrace under Valgrind
439                            (only applies to --disable-optimizations builds)
440
441 NOTE: Object files are built at the place where configure is launched.
442 EOF
443   exit 0
444 }
445
446 quotes='""'
447 if test -t 1 && which tput >/dev/null 2>&1; then
448     ncolors=$(tput colors)
449     if test -n "$ncolors" && test $ncolors -ge 8; then
450         bold_color=$(tput bold)
451         warn_color=$(tput setaf 3)
452         error_color=$(tput setaf 1)
453         reset_color=$(tput sgr0)
454     fi
455     # 72 used instead of 80 since that's the default of pr
456     ncols=$(tput cols)
457 fi
458 : ${ncols:=72}
459
460 log(){
461     echo "$@" >> $logfile
462 }
463
464 log_file(){
465     log BEGIN $1
466     pr -n -t $1 >> $logfile
467     log END $1
468 }
469
470 warn(){
471     log "WARNING: $*"
472     WARNINGS="${WARNINGS}WARNING: $*\n"
473 }
474
475 die(){
476     log "$@"
477     echo "$error_color$bold_color$@$reset_color"
478     cat <<EOF
479
480 If you think configure made a mistake, make sure you are using the latest
481 version from Git.  If the latest version fails, report the problem to the
482 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
483 EOF
484     if disabled logging; then
485         cat <<EOF
486 Rerun configure with logging enabled (do not use --disable-logging), and
487 include the log this produces with your report.
488 EOF
489     else
490         cat <<EOF
491 Include the log file "$logfile" produced by configure as this will help
492 solve the problem.
493 EOF
494     fi
495     exit 1
496 }
497
498 # Avoid locale weirdness, besides we really just want to translate ASCII.
499 toupper(){
500     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
501 }
502
503 tolower(){
504     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
505 }
506
507 c_escape(){
508     echo "$*" | sed 's/["\\]/\\\0/g'
509 }
510
511 sh_quote(){
512     v=$(echo "$1" | sed "s/'/'\\\\''/g")
513     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
514     echo "$v"
515 }
516
517 cleanws(){
518     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
519 }
520
521 filter(){
522     pat=$1
523     shift
524     for v; do
525         eval "case $v in $pat) echo $v ;; esac"
526     done
527 }
528
529 filter_out(){
530     pat=$1
531     shift
532     for v; do
533         eval "case $v in $pat) ;; *) echo $v ;; esac"
534     done
535 }
536
537 map(){
538     m=$1
539     shift
540     for v; do eval $m; done
541 }
542
543 add_suffix(){
544     suffix=$1
545     shift
546     for v; do echo ${v}${suffix}; done
547 }
548
549 set_all(){
550     value=$1
551     shift
552     for var in $*; do
553         eval $var=$value
554     done
555 }
556
557 set_weak(){
558     value=$1
559     shift
560     for var; do
561         eval : \${$var:=$value}
562     done
563 }
564
565 sanitize_var_name(){
566     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
567 }
568
569 set_safe(){
570     var=$1
571     shift
572     eval $(sanitize_var_name "$var")='$*'
573 }
574
575 get_safe(){
576     eval echo \$$(sanitize_var_name "$1")
577 }
578
579 pushvar(){
580     for pvar in $*; do
581         eval level=\${${pvar}_level:=0}
582         eval ${pvar}_${level}="\$$pvar"
583         eval ${pvar}_level=$(($level+1))
584     done
585 }
586
587 popvar(){
588     for pvar in $*; do
589         eval level=\${${pvar}_level:-0}
590         test $level = 0 && continue
591         eval level=$(($level-1))
592         eval $pvar="\${${pvar}_${level}}"
593         eval ${pvar}_level=$level
594         eval unset ${pvar}_${level}
595     done
596 }
597
598 request(){
599     for var in $*; do
600         eval ${var}_requested=yes
601         eval $var=
602     done
603 }
604
605 enable(){
606     set_all yes $*
607 }
608
609 disable(){
610     set_all no $*
611 }
612
613 enable_weak(){
614     set_weak yes $*
615 }
616
617 disable_weak(){
618     set_weak no $*
619 }
620
621 enable_safe(){
622     for var; do
623         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
624     done
625 }
626
627 disable_safe(){
628     for var; do
629         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
630     done
631 }
632
633 do_enable_deep(){
634     for var; do
635         enabled $var && continue
636         eval sel="\$${var}_select"
637         eval sgs="\$${var}_suggest"
638         pushvar var sgs
639         enable_deep $sel
640         popvar sgs
641         enable_deep_weak $sgs
642         popvar var
643     done
644 }
645
646 enable_deep(){
647     do_enable_deep $*
648     enable $*
649 }
650
651 enable_deep_weak(){
652     for var; do
653         disabled $var && continue
654         pushvar var
655         do_enable_deep $var
656         popvar var
657         enable_weak $var
658     done
659 }
660
661 requested(){
662     test "${1#!}" = "$1" && op='=' || op=!=
663     eval test "x\$${1#!}_requested" $op "xyes"
664 }
665
666 enabled(){
667     test "${1#!}" = "$1" && op='=' || op=!=
668     eval test "x\$${1#!}" $op "xyes"
669 }
670
671 disabled(){
672     test "${1#!}" = "$1" && op='=' || op=!=
673     eval test "x\$${1#!}" $op "xno"
674 }
675
676 enabled_all(){
677     for opt; do
678         enabled $opt || return 1
679     done
680 }
681
682 disabled_all(){
683     for opt; do
684         disabled $opt || return 1
685     done
686 }
687
688 enabled_any(){
689     for opt; do
690         enabled $opt && return 0
691     done
692 }
693
694 disabled_any(){
695     for opt; do
696         disabled $opt && return 0
697     done
698     return 1
699 }
700
701 set_default(){
702     for opt; do
703         eval : \${$opt:=\$${opt}_default}
704     done
705 }
706
707 is_in(){
708     value=$1
709     shift
710     for var in $*; do
711         [ $var = $value ] && return 0
712     done
713     return 1
714 }
715
716 do_check_deps(){
717     for cfg; do
718         cfg="${cfg#!}"
719         enabled ${cfg}_checking && die "Circular dependency for $cfg."
720         disabled ${cfg}_checking && continue
721         enable ${cfg}_checking
722         append allopts $cfg
723
724         eval dep_all="\$${cfg}_deps"
725         eval dep_any="\$${cfg}_deps_any"
726         eval dep_sel="\$${cfg}_select"
727         eval dep_sgs="\$${cfg}_suggest"
728         eval dep_ifa="\$${cfg}_if"
729         eval dep_ifn="\$${cfg}_if_any"
730
731         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
732         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
733         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
734
735         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
736         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
737         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
738         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
739         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
740
741         if enabled $cfg; then
742             enable_deep $dep_sel
743             enable_deep_weak $dep_sgs
744         fi
745
746         disable ${cfg}_checking
747     done
748 }
749
750 check_deps(){
751     unset allopts
752
753     do_check_deps "$@"
754
755     for cfg in $allopts; do
756         enabled $cfg || continue
757         eval dep_extralibs="\$${cfg}_extralibs"
758         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
759     done
760 }
761
762 print_config(){
763     pfx=$1
764     files=$2
765     shift 2
766     map 'eval echo "$v \${$v:-no}"' "$@" |
767     awk "BEGIN { split(\"$files\", files) }
768         {
769             c = \"$pfx\" toupper(\$1);
770             v = \$2;
771             sub(/yes/, 1, v);
772             sub(/no/,  0, v);
773             for (f in files) {
774                 file = files[f];
775                 if (file ~ /\\.h\$/) {
776                     printf(\"#define %s %d\\n\", c, v) >>file;
777                 } else if (file ~ /\\.asm\$/) {
778                     printf(\"%%define %s %d\\n\", c, v) >>file;
779                 } else if (file ~ /\\.mak\$/) {
780                     n = -v ? \"\" : \"!\";
781                     printf(\"%s%s=yes\\n\", n, c) >>file;
782                 } else if (file ~ /\\.texi\$/) {
783                     pre = -v ? \"\" : \"@c \";
784                     yesno = \$2;
785                     c2 = tolower(c);
786                     gsub(/_/, \"-\", c2);
787                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
788                 }
789             }
790         }"
791 }
792
793 print_enabled(){
794     suf=$1
795     shift
796     for v; do
797         enabled $v && printf "%s\n" ${v%$suf}
798     done
799 }
800
801 append(){
802     var=$1
803     shift
804     eval "$var=\"\$$var $*\""
805 }
806
807 prepend(){
808     var=$1
809     shift
810     eval "$var=\"$* \$$var\""
811 }
812
813 unique(){
814     var=$1
815     uniq_list=""
816     for tok in $(eval echo \$$var); do
817         uniq_list="$(filter_out $tok $uniq_list) $tok"
818     done
819     eval "$var=\"${uniq_list}\""
820 }
821
822 add_cppflags(){
823     append CPPFLAGS "$@"
824 }
825
826 add_cflags(){
827     append CFLAGS $($cflags_filter "$@")
828 }
829
830 add_cxxflags(){
831     append CXXFLAGS $($cflags_filter "$@")
832 }
833
834 add_asflags(){
835     append ASFLAGS $($asflags_filter "$@")
836 }
837
838 add_objcflags(){
839     append OBJCFLAGS $($objcflags_filter "$@")
840 }
841
842 add_ldflags(){
843     append LDFLAGS $($ldflags_filter "$@")
844 }
845
846 add_ldexeflags(){
847     append LDEXEFLAGS $($ldflags_filter "$@")
848 }
849
850 add_ldlibflags(){
851     append LDLIBFLAGS $($ldflags_filter "$@")
852 }
853
854 add_stripflags(){
855     append ASMSTRIPFLAGS "$@"
856 }
857
858 add_extralibs(){
859     prepend extralibs $($ldflags_filter "$@")
860 }
861
862 add_host_cppflags(){
863     append host_cppflags "$@"
864 }
865
866 add_host_cflags(){
867     append host_cflags $($host_cflags_filter "$@")
868 }
869
870 add_host_ldflags(){
871     append host_ldflags $($host_ldflags_filter "$@")
872 }
873
874 add_compat(){
875     append compat_objs $1
876     shift
877     map 'add_cppflags -D$v' "$@"
878 }
879
880 check_cmd(){
881     log "$@"
882     "$@" >> $logfile 2>&1
883 }
884
885 check_stat(){
886     log check_stat "$@"
887     stat "$1" >> $logfile 2>&1
888 }
889
890 cc_o(){
891     eval printf '%s\\n' $CC_O
892 }
893
894 cc_e(){
895     eval printf '%s\\n' $CC_E
896 }
897
898 check_cc(){
899     log check_cc "$@"
900     cat > $TMPC
901     log_file $TMPC
902     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
903 }
904
905 check_cxx(){
906     log check_cxx "$@"
907     cat > $TMPCPP
908     log_file $TMPCPP
909     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
910 }
911
912 check_objcc(){
913     log check_objcc "$@"
914     cat > $TMPM
915     log_file $TMPM
916     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
917 }
918
919 check_cpp(){
920     log check_cpp "$@"
921     cat > $TMPC
922     log_file $TMPC
923     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
924 }
925
926 as_o(){
927     eval printf '%s\\n' $AS_O
928 }
929
930 check_as(){
931     log check_as "$@"
932     cat > $TMPS
933     log_file $TMPS
934     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
935 }
936
937 check_inline_asm(){
938     log check_inline_asm "$@"
939     name="$1"
940     code="$2"
941     shift 2
942     disable $name
943     check_cc "$@" <<EOF && enable $name
944 void foo(void){ __asm__ volatile($code); }
945 EOF
946 }
947
948 check_inline_asm_flags(){
949     log check_inline_asm_flags "$@"
950     name="$1"
951     code="$2"
952     flags=''
953     shift 2
954     while [ "$1" != "" ]; do
955       append flags $1
956       shift
957     done;
958     disable $name
959     cat > $TMPC <<EOF
960 void foo(void){ __asm__ volatile($code); }
961 EOF
962     log_file $TMPC
963     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
964     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
965 }
966
967 check_insn(){
968     log check_insn "$@"
969     check_inline_asm ${1}_inline "\"$2\""
970     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
971 }
972
973 check_yasm(){
974     log check_yasm "$@"
975     echo "$1" > $TMPS
976     log_file $TMPS
977     shift 1
978     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
979 }
980
981 ld_o(){
982     eval printf '%s\\n' $LD_O
983 }
984
985 check_ld(){
986     log check_ld "$@"
987     type=$1
988     shift 1
989     flags=$(filter_out '-l*|*.so' $@)
990     libs=$(filter '-l*|*.so' $@)
991     check_$type $($cflags_filter $flags) || return
992     flags=$($ldflags_filter $flags)
993     libs=$($ldflags_filter $libs)
994     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
995 }
996
997 print_include(){
998     hdr=$1
999     test "${hdr%.h}" = "${hdr}" &&
1000         echo "#include $hdr"    ||
1001         echo "#include <$hdr>"
1002 }
1003
1004 check_code(){
1005     log check_code "$@"
1006     check=$1
1007     headers=$2
1008     code=$3
1009     shift 3
1010     {
1011         for hdr in $headers; do
1012             print_include $hdr
1013         done
1014         echo "int main(void) { $code; return 0; }"
1015     } | check_$check "$@"
1016 }
1017
1018 check_cppflags(){
1019     log check_cppflags "$@"
1020     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1021 int x;
1022 EOF
1023 }
1024
1025 test_cflags(){
1026     log test_cflags "$@"
1027     set -- $($cflags_filter "$@")
1028     check_cc "$@" <<EOF
1029 int x;
1030 EOF
1031 }
1032
1033 check_cflags(){
1034     log check_cflags "$@"
1035     test_cflags "$@" && add_cflags "$@"
1036 }
1037
1038 check_cxxflags(){
1039     log check_cxxflags "$@"
1040     set -- $($cflags_filter "$@")
1041     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1042 int x;
1043 EOF
1044 }
1045
1046 test_objcflags(){
1047     log test_cflags "$@"
1048     set -- $($cflags_filter "$@")
1049     check_objcc "$@" <<EOF
1050 int x;
1051 EOF
1052 }
1053
1054 check_objcflags(){
1055     log check_cflags "$@"
1056     test_objcflags "$@" && add_objcflags "$@"
1057 }
1058
1059 test_ldflags(){
1060     log test_ldflags "$@"
1061     check_ld "cc" "$@" <<EOF
1062 int main(void){ return 0; }
1063 EOF
1064 }
1065
1066 check_ldflags(){
1067     log check_ldflags "$@"
1068     test_ldflags "$@" && add_ldflags "$@"
1069 }
1070
1071 test_stripflags(){
1072     log test_stripflags "$@"
1073     # call check_cc to get a fresh TMPO
1074     check_cc <<EOF
1075 int main(void) { return 0; }
1076 EOF
1077     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1078 }
1079
1080 check_stripflags(){
1081     log check_stripflags "$@"
1082     test_stripflags "$@" && add_stripflags "$@"
1083 }
1084
1085 check_header(){
1086     log check_header "$@"
1087     header=$1
1088     shift
1089     disable_safe $header
1090     check_cpp "$@" <<EOF && enable_safe $header
1091 #include <$header>
1092 int x;
1093 EOF
1094 }
1095
1096 check_header_objcc(){
1097     log check_header_objcc "$@"
1098     rm -f -- "$TMPO"
1099     header=$1
1100     shift
1101     disable_safe $header
1102     {
1103        echo "#include <$header>"
1104        echo "int main(void) { return 0; }"
1105     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1106 }
1107
1108 check_func(){
1109     log check_func "$@"
1110     func=$1
1111     shift
1112     disable $func
1113     check_ld "cc" "$@" <<EOF && enable $func
1114 extern int $func();
1115 int main(void){ $func(); }
1116 EOF
1117 }
1118
1119 check_complexfunc(){
1120     log check_complexfunc "$@"
1121     func=$1
1122     narg=$2
1123     shift 2
1124     test $narg = 2 && args="f, g" || args="f * I"
1125     disable $func
1126     check_ld "cc" "$@" <<EOF && enable $func
1127 #include <complex.h>
1128 #include <math.h>
1129 float foo(complex float f, complex float g) { return $func($args); }
1130 int main(void){ return (int) foo; }
1131 EOF
1132 }
1133
1134 check_mathfunc(){
1135     log check_mathfunc "$@"
1136     func=$1
1137     narg=$2
1138     shift 2
1139     test $narg = 2 && args="f, g" || args="f"
1140     disable $func
1141     check_ld "cc" "$@" <<EOF && enable $func
1142 #include <math.h>
1143 float foo(float f, float g) { return $func($args); }
1144 int main(void){ return (int) foo; }
1145 EOF
1146 }
1147
1148 check_func_headers(){
1149     log check_func_headers "$@"
1150     headers=$1
1151     funcs=$2
1152     shift 2
1153     {
1154         for hdr in $headers; do
1155             print_include $hdr
1156         done
1157         echo "#include <stdint.h>"
1158         for func in $funcs; do
1159             echo "long check_$func(void) { return (long) $func; }"
1160         done
1161         echo "int main(void) { int ret = 0;"
1162         # LTO could optimize out the test functions without this
1163         for func in $funcs; do
1164             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1165         done
1166         echo "return ret; }"
1167     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1168 }
1169
1170 check_class_headers_cpp(){
1171     log check_class_headers_cpp "$@"
1172     headers=$1
1173     classes=$2
1174     shift 2
1175     {
1176         for hdr in $headers; do
1177             echo "#include <$hdr>"
1178         done
1179         echo "int main(void) { "
1180         i=1
1181         for class in $classes; do
1182             echo "$class obj$i;"
1183             i=$(expr $i + 1)
1184         done
1185         echo "return 0; }"
1186     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1187 }
1188
1189 check_cpp_condition(){
1190     log check_cpp_condition "$@"
1191     header=$1
1192     condition=$2
1193     shift 2
1194     check_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 test_cflags_cc(){
1203     log test_cflags_cc "$@"
1204     flags=$1
1205     header=$2
1206     condition=$3
1207     shift 3
1208     set -- $($cflags_filter "$flags")
1209     check_cc "$@" <<EOF
1210 #include <$header>
1211 #if !($condition)
1212 #error "unsatisfied condition: $condition"
1213 #endif
1214 EOF
1215 }
1216
1217 check_lib(){
1218     log check_lib "$@"
1219     headers="$1"
1220     funcs="$2"
1221     shift 2
1222     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1223 }
1224
1225 check_lib_cpp(){
1226     log check_lib_cpp "$@"
1227     headers="$1"
1228     classes="$2"
1229     shift 2
1230     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1231 }
1232
1233 check_pkg_config(){
1234     log check_pkg_config "$@"
1235     pkgandversion="$1"
1236     pkg="${1%% *}"
1237     headers="$2"
1238     funcs="$3"
1239     shift 3
1240     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1241     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1242     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1243     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1244         set_safe "${pkg}_cflags" $pkg_cflags   &&
1245         set_safe "${pkg}_libs"   $pkg_libs
1246 }
1247
1248 check_exec(){
1249     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1250 }
1251
1252 check_exec_crash(){
1253     code=$(cat)
1254
1255     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1256     # are safe but may not be available everywhere.  Thus we use
1257     # raise(SIGTERM) instead.  The check is run in a subshell so we
1258     # can redirect the "Terminated" message from the shell.  SIGBUS
1259     # is not defined by standard C so it is used conditionally.
1260
1261     (check_exec "$@") >> $logfile 2>&1 <<EOF
1262 #include <signal.h>
1263 static void sighandler(int sig){
1264     raise(SIGTERM);
1265 }
1266 int foo(void){
1267     $code
1268 }
1269 int (*func_ptr)(void) = foo;
1270 int main(void){
1271     signal(SIGILL, sighandler);
1272     signal(SIGFPE, sighandler);
1273     signal(SIGSEGV, sighandler);
1274 #ifdef SIGBUS
1275     signal(SIGBUS, sighandler);
1276 #endif
1277     return func_ptr();
1278 }
1279 EOF
1280 }
1281
1282 check_type(){
1283     log check_type "$@"
1284     headers=$1
1285     type=$2
1286     shift 2
1287     disable_safe "$type"
1288     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1289 }
1290
1291 check_struct(){
1292     log check_struct "$@"
1293     headers=$1
1294     struct=$2
1295     member=$3
1296     shift 3
1297     disable_safe "${struct}_${member}"
1298     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1299         enable_safe "${struct}_${member}"
1300 }
1301
1302 check_builtin(){
1303     log check_builtin "$@"
1304     name=$1
1305     headers=$2
1306     builtin=$3
1307     shift 3
1308     disable "$name"
1309     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1310 }
1311
1312 check_compile_assert(){
1313     log check_compile_assert "$@"
1314     name=$1
1315     headers=$2
1316     condition=$3
1317     shift 3
1318     disable "$name"
1319     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1320 }
1321
1322 require(){
1323     name="$1"
1324     headers="$2"
1325     func="$3"
1326     shift 3
1327     check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1328 }
1329
1330 require_cpp(){
1331     name="$1"
1332     headers="$2"
1333     classes="$3"
1334     shift 3
1335     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1336 }
1337
1338 use_pkg_config(){
1339     pkg="$1"
1340     check_pkg_config "$@" || return 1
1341     add_cflags    $(get_safe "${pkg}_cflags")
1342     add_extralibs $(get_safe "${pkg}_libs")
1343 }
1344
1345 require_pkg_config(){
1346     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1347 }
1348
1349 require_libfreetype(){
1350     log require_libfreetype "$@"
1351     pkg="freetype2"
1352     check_cmd $pkg_config --exists --print-errors $pkg \
1353       || die "ERROR: $pkg not found"
1354     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1355     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1356     {
1357         echo "#include <ft2build.h>"
1358         echo "#include FT_FREETYPE_H"
1359         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1360         echo "int main(void) { return 0; }"
1361     } | check_ld "cc" $pkg_cflags $pkg_libs \
1362       && set_safe "${pkg}_cflags" $pkg_cflags \
1363       && set_safe "${pkg}_libs"   $pkg_libs \
1364       || die "ERROR: $pkg not found"
1365     add_cflags    $(get_safe "${pkg}_cflags")
1366     add_extralibs $(get_safe "${pkg}_libs")
1367 }
1368
1369 hostcc_e(){
1370     eval printf '%s\\n' $HOSTCC_E
1371 }
1372
1373 hostcc_o(){
1374     eval printf '%s\\n' $HOSTCC_O
1375 }
1376
1377 check_host_cc(){
1378     log check_host_cc "$@"
1379     cat > $TMPC
1380     log_file $TMPC
1381     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1382 }
1383
1384 check_host_cpp(){
1385     log check_host_cpp "$@"
1386     cat > $TMPC
1387     log_file $TMPC
1388     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1389 }
1390
1391 check_host_cppflags(){
1392     log check_host_cppflags "$@"
1393     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1394 int x;
1395 EOF
1396 }
1397
1398 check_host_cflags(){
1399     log check_host_cflags "$@"
1400     set -- $($host_cflags_filter "$@")
1401     check_host_cc "$@" <<EOF && append host_cflags "$@"
1402 int x;
1403 EOF
1404 }
1405
1406 check_host_cpp_condition(){
1407     log check_host_cpp_condition "$@"
1408     header=$1
1409     condition=$2
1410     shift 2
1411     check_host_cpp "$@" <<EOF
1412 #include <$header>
1413 #if !($condition)
1414 #error "unsatisfied condition: $condition"
1415 #endif
1416 EOF
1417 }
1418
1419 cp_if_changed(){
1420     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1421     mkdir -p "$(dirname $2)"
1422     $cp_f "$1" "$2"
1423 }
1424
1425 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1426 # system-dependent things.
1427
1428 AVCODEC_COMPONENTS="
1429     bsfs
1430     decoders
1431     encoders
1432     hwaccels
1433     parsers
1434 "
1435
1436 AVDEVICE_COMPONENTS="
1437     indevs
1438     outdevs
1439 "
1440 AVFILTER_COMPONENTS="
1441     filters
1442 "
1443 AVFORMAT_COMPONENTS="
1444     demuxers
1445     muxers
1446     protocols
1447 "
1448
1449 AVRESAMPLE_COMPONENTS=""
1450 AVUTIL_COMPONENTS=""
1451
1452 COMPONENT_LIST="
1453     $AVCODEC_COMPONENTS
1454     $AVDEVICE_COMPONENTS
1455     $AVFILTER_COMPONENTS
1456     $AVFORMAT_COMPONENTS
1457     $AVRESAMPLE_COMPONENTS
1458     $AVUTIL_COMPONENTS
1459 "
1460
1461 EXAMPLE_LIST="
1462     avio_dir_cmd_example
1463     avio_reading_example
1464     decode_audio_example
1465     decoding_encoding_example
1466     demuxing_decoding_example
1467     encode_audio_example
1468     extract_mvs_example
1469     filter_audio_example
1470     filtering_audio_example
1471     filtering_video_example
1472     http_multiclient_example
1473     metadata_example
1474     muxing_example
1475     qsvdec_example
1476     remuxing_example
1477     resampling_audio_example
1478     scaling_video_example
1479     transcode_aac_example
1480     transcoding_example
1481 "
1482 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1483     bzlib
1484     iconv
1485     libxcb
1486     libxcb_shm
1487     libxcb_shape
1488     libxcb_xfixes
1489     lzma
1490     schannel
1491     sdl
1492     sdl2
1493     securetransport
1494     xlib
1495     zlib
1496 "
1497
1498 EXTERNAL_LIBRARY_GPL_LIST="
1499     frei0r
1500     libcdio
1501     librubberband
1502     libvidstab
1503     libx264
1504     libx265
1505     libxavs
1506     libxvid
1507 "
1508
1509 EXTERNAL_LIBRARY_NONFREE_LIST="
1510     libfdk_aac
1511     openssl
1512 "
1513
1514 EXTERNAL_LIBRARY_VERSION3_LIST="
1515     gmp
1516     libopencore_amrnb
1517     libopencore_amrwb
1518     libvo_amrwbenc
1519 "
1520
1521 EXTERNAL_LIBRARY_GPLV3_LIST="
1522     libsmbclient
1523 "
1524
1525 EXTERNAL_LIBRARY_LIST="
1526     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1527     $EXTERNAL_LIBRARY_GPL_LIST
1528     $EXTERNAL_LIBRARY_NONFREE_LIST
1529     $EXTERNAL_LIBRARY_VERSION3_LIST
1530     $EXTERNAL_LIBRARY_GPLV3_LIST
1531     avisynth
1532     chromaprint
1533     crystalhd
1534     decklink
1535     gcrypt
1536     gnutls
1537     jni
1538     ladspa
1539     libass
1540     libbluray
1541     libbs2b
1542     libcaca
1543     libcelt
1544     libdc1394
1545     libflite
1546     libfontconfig
1547     libfreetype
1548     libfribidi
1549     libgme
1550     libgsm
1551     libiec61883
1552     libilbc
1553     libkvazaar
1554     libmodplug
1555     libmp3lame
1556     libnut
1557     libopencv
1558     libopenh264
1559     libopenjpeg
1560     libopenmpt
1561     libopus
1562     libpulse
1563     librtmp
1564     libschroedinger
1565     libshine
1566     libsmbclient
1567     libsnappy
1568     libsoxr
1569     libspeex
1570     libssh
1571     libtesseract
1572     libtheora
1573     libtwolame
1574     libv4l2
1575     libvorbis
1576     libvpx
1577     libwavpack
1578     libwebp
1579     libzimg
1580     libzmq
1581     libzvbi
1582     mediacodec
1583     netcdf
1584     openal
1585     opencl
1586     opengl
1587     videotoolbox
1588 "
1589 HWACCEL_AUTODETECT_LIBRARY_LIST="
1590     audiotoolbox
1591     cuda
1592     cuvid
1593     d3d11va
1594     dxva2
1595     nvenc
1596     vaapi
1597     vda
1598     vdpau
1599     videotoolbox_hwaccel
1600     xvmc
1601 "
1602
1603 HWACCEL_LIBRARY_NONFREE_LIST="
1604     libnpp
1605 "
1606
1607 HWACCEL_LIBRARY_LIST="
1608     $HWACCEL_AUTODETECT_LIBRARY_LIST
1609     $HWACCEL_LIBRARY_NONFREE_LIST
1610     libmfx
1611     mmal
1612     omx
1613 "
1614
1615 DOCUMENT_LIST="
1616     doc
1617     htmlpages
1618     manpages
1619     podpages
1620     txtpages
1621 "
1622
1623 FEATURE_LIST="
1624     ftrapv
1625     gray
1626     hardcoded_tables
1627     omx_rpi
1628     runtime_cpudetect
1629     safe_bitstream_reader
1630     shared
1631     small
1632     static
1633     swscale_alpha
1634 "
1635
1636 LIBRARY_LIST="
1637     avcodec
1638     avdevice
1639     avfilter
1640     avformat
1641     avresample
1642     avutil
1643     postproc
1644     swresample
1645     swscale
1646 "
1647
1648 LICENSE_LIST="
1649     gpl
1650     nonfree
1651     version3
1652 "
1653
1654 PROGRAM_LIST="
1655     ffplay
1656     ffprobe
1657     ffserver
1658     ffmpeg
1659 "
1660
1661 SUBSYSTEM_LIST="
1662     dct
1663     dwt
1664     error_resilience
1665     faan
1666     fast_unaligned
1667     fft
1668     lsp
1669     lzo
1670     mdct
1671     pixelutils
1672     network
1673     rdft
1674 "
1675
1676 CONFIG_LIST="
1677     $COMPONENT_LIST
1678     $DOCUMENT_LIST
1679     $EXAMPLE_LIST
1680     $EXTERNAL_LIBRARY_LIST
1681     $HWACCEL_LIBRARY_LIST
1682     $FEATURE_LIST
1683     $LICENSE_LIST
1684     $LIBRARY_LIST
1685     $PROGRAM_LIST
1686     $SUBSYSTEM_LIST
1687     fontconfig
1688     memory_poisoning
1689     neon_clobber_test
1690     pic
1691     raise_major
1692     thumb
1693     valgrind_backtrace
1694     xmm_clobber_test
1695 "
1696
1697 THREADS_LIST="
1698     pthreads
1699     os2threads
1700     w32threads
1701 "
1702
1703 ATOMICS_LIST="
1704     atomics_gcc
1705     atomics_suncc
1706     atomics_win32
1707 "
1708
1709 AUTODETECT_LIBS="
1710     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1711     $HWACCEL_AUTODETECT_LIBRARY_LIST
1712     $THREADS_LIST
1713 "
1714
1715 ARCH_LIST="
1716     aarch64
1717     alpha
1718     arm
1719     avr32
1720     avr32_ap
1721     avr32_uc
1722     bfin
1723     ia64
1724     m68k
1725     mips
1726     mips64
1727     parisc
1728     ppc
1729     ppc64
1730     s390
1731     sh4
1732     sparc
1733     sparc64
1734     tilegx
1735     tilepro
1736     tomi
1737     x86
1738     x86_32
1739     x86_64
1740 "
1741
1742 ARCH_EXT_LIST_ARM="
1743     armv5te
1744     armv6
1745     armv6t2
1746     armv8
1747     neon
1748     vfp
1749     vfpv3
1750     setend
1751 "
1752
1753 ARCH_EXT_LIST_MIPS="
1754     mipsfpu
1755     mips32r2
1756     mips32r5
1757     mips64r2
1758     mips32r6
1759     mips64r6
1760     mipsdsp
1761     mipsdspr2
1762     msa
1763 "
1764
1765 ARCH_EXT_LIST_LOONGSON="
1766     loongson2
1767     loongson3
1768     mmi
1769 "
1770
1771 ARCH_EXT_LIST_X86_SIMD="
1772     aesni
1773     amd3dnow
1774     amd3dnowext
1775     avx
1776     avx2
1777     fma3
1778     fma4
1779     mmx
1780     mmxext
1781     sse
1782     sse2
1783     sse3
1784     sse4
1785     sse42
1786     ssse3
1787     xop
1788 "
1789
1790 ARCH_EXT_LIST_PPC="
1791     altivec
1792     dcbzl
1793     ldbrx
1794     power8
1795     ppc4xx
1796     vsx
1797 "
1798
1799 ARCH_EXT_LIST_X86="
1800     $ARCH_EXT_LIST_X86_SIMD
1801     cpunop
1802     i686
1803 "
1804
1805 ARCH_EXT_LIST="
1806     $ARCH_EXT_LIST_ARM
1807     $ARCH_EXT_LIST_PPC
1808     $ARCH_EXT_LIST_X86
1809     $ARCH_EXT_LIST_MIPS
1810     $ARCH_EXT_LIST_LOONGSON
1811 "
1812
1813 ARCH_FEATURES="
1814     aligned_stack
1815     fast_64bit
1816     fast_clz
1817     fast_cmov
1818     local_aligned_8
1819     local_aligned_16
1820     local_aligned_32
1821     simd_align_16
1822     simd_align_32
1823 "
1824
1825 BUILTIN_LIST="
1826     atomic_cas_ptr
1827     machine_rw_barrier
1828     MemoryBarrier
1829     mm_empty
1830     rdtsc
1831     sarestart
1832     sem_timedwait
1833     sync_val_compare_and_swap
1834 "
1835 HAVE_LIST_CMDLINE="
1836     inline_asm
1837     symver
1838     yasm
1839 "
1840
1841 HAVE_LIST_PUB="
1842     bigendian
1843     fast_unaligned
1844 "
1845
1846 HEADERS_LIST="
1847     alsa_asoundlib_h
1848     altivec_h
1849     arpa_inet_h
1850     asm_types_h
1851     cdio_paranoia_h
1852     cdio_paranoia_paranoia_h
1853     cuda_h
1854     dispatch_dispatch_h
1855     dev_bktr_ioctl_bt848_h
1856     dev_bktr_ioctl_meteor_h
1857     dev_ic_bt8xx_h
1858     dev_video_bktr_ioctl_bt848_h
1859     dev_video_meteor_ioctl_meteor_h
1860     direct_h
1861     dirent_h
1862     dlfcn_h
1863     d3d11_h
1864     dxva_h
1865     ES2_gl_h
1866     gsm_h
1867     io_h
1868     mach_mach_time_h
1869     machine_ioctl_bt848_h
1870     machine_ioctl_meteor_h
1871     malloc_h
1872     opencv2_core_core_c_h
1873     openjpeg_2_1_openjpeg_h
1874     openjpeg_2_0_openjpeg_h
1875     openjpeg_1_5_openjpeg_h
1876     OpenGL_gl3_h
1877     poll_h
1878     sndio_h
1879     soundcard_h
1880     stdatomic_h
1881     sys_mman_h
1882     sys_param_h
1883     sys_resource_h
1884     sys_select_h
1885     sys_soundcard_h
1886     sys_time_h
1887     sys_un_h
1888     sys_videoio_h
1889     termios_h
1890     udplite_h
1891     unistd_h
1892     valgrind_valgrind_h
1893     windows_h
1894     winsock2_h
1895 "
1896
1897 INTRINSICS_LIST="
1898     intrinsics_neon
1899 "
1900
1901 COMPLEX_FUNCS="
1902     cabs
1903     cexp
1904 "
1905
1906 MATH_FUNCS="
1907     atanf
1908     atan2f
1909     cbrt
1910     cbrtf
1911     copysign
1912     cosf
1913     erf
1914     exp2
1915     exp2f
1916     expf
1917     hypot
1918     isfinite
1919     isinf
1920     isnan
1921     ldexpf
1922     llrint
1923     llrintf
1924     log2
1925     log2f
1926     log10f
1927     lrint
1928     lrintf
1929     powf
1930     rint
1931     round
1932     roundf
1933     sinf
1934     trunc
1935     truncf
1936 "
1937
1938 SYSTEM_FUNCS="
1939     access
1940     aligned_malloc
1941     arc4random
1942     clock_gettime
1943     closesocket
1944     CommandLineToArgvW
1945     CoTaskMemFree
1946     CryptGenRandom
1947     dlopen
1948     fcntl
1949     flt_lim
1950     fork
1951     getaddrinfo
1952     gethrtime
1953     getopt
1954     GetProcessAffinityMask
1955     GetProcessMemoryInfo
1956     GetProcessTimes
1957     getrusage
1958     GetSystemTimeAsFileTime
1959     gettimeofday
1960     glob
1961     glXGetProcAddress
1962     gmtime_r
1963     inet_aton
1964     isatty
1965     jack_port_get_latency_range
1966     kbhit
1967     LoadLibrary
1968     localtime_r
1969     lstat
1970     lzo1x_999_compress
1971     mach_absolute_time
1972     MapViewOfFile
1973     memalign
1974     mkstemp
1975     mmap
1976     mprotect
1977     nanosleep
1978     PeekNamedPipe
1979     posix_memalign
1980     pthread_cancel
1981     sched_getaffinity
1982     SetConsoleTextAttribute
1983     SetConsoleCtrlHandler
1984     setmode
1985     setrlimit
1986     Sleep
1987     strerror_r
1988     sysconf
1989     sysctl
1990     usleep
1991     UTGetOSTypeFromString
1992     VirtualAlloc
1993     wglGetProcAddress
1994 "
1995
1996 TOOLCHAIN_FEATURES="
1997     as_dn_directive
1998     as_fpu_directive
1999     as_func
2000     as_object_arch
2001     asm_mod_q
2002     attribute_may_alias
2003     attribute_packed
2004     ebp_available
2005     ebx_available
2006     gnu_as
2007     gnu_windres
2008     ibm_asm
2009     inline_asm_direct_symbol_refs
2010     inline_asm_labels
2011     inline_asm_nonlocal_labels
2012     pragma_deprecated
2013     rsync_contimeout
2014     symver_asm_label
2015     symver_gnu_asm
2016     vfp_args
2017     xform_asm
2018     xmm_clobbers
2019 "
2020
2021 TYPES_LIST="
2022     CONDITION_VARIABLE_Ptr
2023     socklen_t
2024     struct_addrinfo
2025     struct_group_source_req
2026     struct_ip_mreq_source
2027     struct_ipv6_mreq
2028     struct_msghdr_msg_flags
2029     struct_pollfd
2030     struct_rusage_ru_maxrss
2031     struct_sctp_event_subscribe
2032     struct_sockaddr_in6
2033     struct_sockaddr_sa_len
2034     struct_sockaddr_storage
2035     struct_stat_st_mtim_tv_nsec
2036     struct_v4l2_frmivalenum_discrete
2037 "
2038
2039 HAVE_LIST="
2040     $ARCH_EXT_LIST
2041     $(add_suffix _external $ARCH_EXT_LIST)
2042     $(add_suffix _inline   $ARCH_EXT_LIST)
2043     $ARCH_FEATURES
2044     $ATOMICS_LIST
2045     $BUILTIN_LIST
2046     $COMPLEX_FUNCS
2047     $HAVE_LIST_CMDLINE
2048     $HAVE_LIST_PUB
2049     $HEADERS_LIST
2050     $INTRINSICS_LIST
2051     $MATH_FUNCS
2052     $SYSTEM_FUNCS
2053     $THREADS_LIST
2054     $TOOLCHAIN_FEATURES
2055     $TYPES_LIST
2056     atomics_native
2057     dos_paths
2058     dxva2_lib
2059     dxva2api_cobj
2060     libc_msvcrt
2061     libdc1394_1
2062     libdc1394_2
2063     makeinfo
2064     makeinfo_html
2065     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2066     perl
2067     pod2man
2068     sdl2
2069     section_data_rel_ro
2070     texi2html
2071     threads
2072     vaapi_drm
2073     vaapi_x11
2074     vdpau_x11
2075     winrt
2076     xlib
2077 "
2078
2079 # options emitted with CONFIG_ prefix but not available on the command line
2080 CONFIG_EXTRA="
2081     aandcttables
2082     ac3dsp
2083     audio_frame_queue
2084     audiodsp
2085     blockdsp
2086     bswapdsp
2087     cabac
2088     dirac_parse
2089     dvprofile
2090     exif
2091     faandct
2092     faanidct
2093     fdctdsp
2094     flacdsp
2095     fmtconvert
2096     frame_thread_encoder
2097     g722dsp
2098     golomb
2099     gplv3
2100     h263dsp
2101     h264chroma
2102     h264dsp
2103     h264parse
2104     h264pred
2105     h264qpel
2106     hpeldsp
2107     huffman
2108     huffyuvdsp
2109     huffyuvencdsp
2110     idctdsp
2111     iirfilter
2112     mdct15
2113     intrax8
2114     iso_media
2115     ividsp
2116     jpegtables
2117     lgplv3
2118     libx262
2119     llauddsp
2120     llviddsp
2121     llvidencdsp
2122     lpc
2123     lzf
2124     me_cmp
2125     mpeg_er
2126     mpegaudio
2127     mpegaudiodsp
2128     mpegvideo
2129     mpegvideoenc
2130     mss34dsp
2131     pixblockdsp
2132     qpeldsp
2133     qsv
2134     qsvdec
2135     qsvenc
2136     rangecoder
2137     riffdec
2138     riffenc
2139     rtpdec
2140     rtpenc_chain
2141     rv34dsp
2142     sinewin
2143     snappy
2144     srtp
2145     startcode
2146     texturedsp
2147     texturedspenc
2148     tpeldsp
2149     vaapi_encode
2150     vc1dsp
2151     videodsp
2152     vp3dsp
2153     vp56dsp
2154     vp8dsp
2155     vt_bt2020
2156     wma_freqs
2157     wmv2dsp
2158 "
2159
2160 CMDLINE_SELECT="
2161     $ARCH_EXT_LIST
2162     $CONFIG_LIST
2163     $HAVE_LIST_CMDLINE
2164     $THREADS_LIST
2165     asm
2166     cross_compile
2167     debug
2168     extra_warnings
2169     logging
2170     lto
2171     optimizations
2172     rpath
2173     stripping
2174 "
2175
2176 PATHS_LIST="
2177     bindir
2178     datadir
2179     docdir
2180     incdir
2181     libdir
2182     mandir
2183     pkgconfigdir
2184     prefix
2185     shlibdir
2186     install_name_dir
2187 "
2188
2189 CMDLINE_SET="
2190     $PATHS_LIST
2191     ar
2192     arch
2193     as
2194     assert_level
2195     build_suffix
2196     cc
2197     objcc
2198     cpu
2199     cross_prefix
2200     custom_allocator
2201     cxx
2202     dep_cc
2203     doxygen
2204     env
2205     extra_version
2206     gas
2207     host_cc
2208     host_cflags
2209     host_ld
2210     host_ldflags
2211     host_libs
2212     host_os
2213     install
2214     ld
2215     ln_s
2216     logfile
2217     malloc_prefix
2218     nm
2219     optflags
2220     pkg_config
2221     pkg_config_flags
2222     progs_suffix
2223     random_seed
2224     ranlib
2225     samples
2226     strip
2227     sws_max_filter_size
2228     sysinclude
2229     sysroot
2230     target_exec
2231     target_os
2232     target_path
2233     target_samples
2234     tempprefix
2235     toolchain
2236     valgrind
2237     yasmexe
2238 "
2239
2240 CMDLINE_APPEND="
2241     extra_cflags
2242     extra_cxxflags
2243     extra_objcflags
2244     host_cppflags
2245 "
2246
2247 # code dependency declarations
2248
2249 # architecture extensions
2250
2251 armv5te_deps="arm"
2252 armv6_deps="arm"
2253 armv6t2_deps="arm"
2254 armv8_deps="aarch64"
2255 neon_deps_any="aarch64 arm"
2256 intrinsics_neon_deps="neon"
2257 vfp_deps_any="aarch64 arm"
2258 vfpv3_deps="vfp"
2259 setend_deps="arm"
2260
2261 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2262
2263 loongson2_deps="mips"
2264 loongson3_deps="mips"
2265 mipsfpu_deps="mips"
2266 mipsdsp_deps="mips"
2267 mipsdspr2_deps="mips"
2268 mips32r2_deps="mips"
2269 mips32r5_deps="mips"
2270 mips32r6_deps="mips"
2271 mips64r2_deps="mips"
2272 mips64r6_deps="mips"
2273 msa_deps="mipsfpu"
2274 mmi_deps="mips"
2275
2276 altivec_deps="ppc"
2277 dcbzl_deps="ppc"
2278 ldbrx_deps="ppc"
2279 ppc4xx_deps="ppc"
2280 vsx_deps="altivec"
2281 power8_deps="vsx"
2282
2283 cpunop_deps="i686"
2284 x86_64_select="i686"
2285 x86_64_suggest="fast_cmov"
2286
2287 amd3dnow_deps="mmx"
2288 amd3dnowext_deps="amd3dnow"
2289 i686_deps="x86"
2290 mmx_deps="x86"
2291 mmxext_deps="mmx"
2292 sse_deps="mmxext"
2293 sse2_deps="sse"
2294 sse3_deps="sse2"
2295 ssse3_deps="sse3"
2296 sse4_deps="ssse3"
2297 sse42_deps="sse4"
2298 aesni_deps="sse42"
2299 avx_deps="sse42"
2300 xop_deps="avx"
2301 fma3_deps="avx"
2302 fma4_deps="avx"
2303 avx2_deps="avx"
2304
2305 mmx_external_deps="yasm"
2306 mmx_inline_deps="inline_asm"
2307 mmx_suggest="mmx_external mmx_inline"
2308
2309 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2310     eval dep=\$${ext}_deps
2311     eval ${ext}_external_deps='"${dep}_external"'
2312     eval ${ext}_inline_deps='"${dep}_inline"'
2313     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2314 done
2315
2316 aligned_stack_if_any="aarch64 ppc x86"
2317 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2318 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2319 fast_unaligned_if_any="aarch64 ppc x86"
2320 simd_align_16_if_any="altivec neon sse"
2321 simd_align_32_if_any="avx"
2322
2323 # system capabilities
2324 symver_if_any="symver_asm_label symver_gnu_asm"
2325 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2326
2327 # threading support
2328 atomics_gcc_if="sync_val_compare_and_swap"
2329 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2330 atomics_win32_if="MemoryBarrier"
2331 atomics_native_if_any="$ATOMICS_LIST"
2332 w32threads_deps="atomics_native"
2333 threads_if_any="$THREADS_LIST"
2334
2335 # subsystems
2336 dct_select="rdft"
2337 dirac_parse_select="golomb"
2338 error_resilience_select="me_cmp"
2339 faandct_deps="faan fdctdsp"
2340 faanidct_deps="faan idctdsp"
2341 h264dsp_select="startcode"
2342 frame_thread_encoder_deps="encoders threads"
2343 intrax8_select="blockdsp idctdsp"
2344 mdct_select="fft"
2345 mdct15_select="fft"
2346 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2347 mpeg_er_select="error_resilience"
2348 mpegaudio_select="mpegaudiodsp"
2349 mpegaudiodsp_select="dct"
2350 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2351 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2352 vc1dsp_select="h264chroma qpeldsp startcode"
2353 rdft_select="fft"
2354
2355 # decoders / encoders
2356 aac_decoder_select="mdct15 mdct sinewin"
2357 aac_fixed_decoder_select="mdct sinewin"
2358 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2359 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2360 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2361 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2362 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2363 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2364 adpcm_g722_decoder_select="g722dsp"
2365 adpcm_g722_encoder_select="g722dsp"
2366 aic_decoder_select="golomb idctdsp"
2367 alac_encoder_select="lpc"
2368 als_decoder_select="bswapdsp"
2369 amrnb_decoder_select="lsp"
2370 amrwb_decoder_select="lsp"
2371 amv_decoder_select="sp5x_decoder exif"
2372 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2373 ape_decoder_select="bswapdsp llauddsp"
2374 apng_decoder_select="zlib"
2375 apng_encoder_select="llvidencdsp zlib"
2376 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2377 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2378 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2379 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2380 atrac1_decoder_select="mdct sinewin"
2381 atrac3_decoder_select="mdct"
2382 atrac3p_decoder_select="mdct sinewin"
2383 avrn_decoder_select="exif jpegtables"
2384 bink_decoder_select="blockdsp hpeldsp"
2385 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2386 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2387 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2388 cllc_decoder_select="bswapdsp"
2389 comfortnoise_encoder_select="lpc"
2390 cook_decoder_select="audiodsp mdct sinewin"
2391 cscd_decoder_select="lzo"
2392 cscd_decoder_suggest="zlib"
2393 dca_decoder_select="mdct"
2394 dds_decoder_select="texturedsp"
2395 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2396 dnxhd_decoder_select="blockdsp idctdsp"
2397 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2398 dvvideo_decoder_select="dvprofile idctdsp"
2399 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2400 dxa_decoder_select="zlib"
2401 dxv_decoder_select="lzf texturedsp"
2402 eac3_decoder_select="ac3_decoder"
2403 eac3_encoder_select="ac3_encoder"
2404 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2405 eatgq_decoder_select="aandcttables"
2406 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2407 exr_decoder_select="zlib"
2408 ffv1_decoder_select="golomb rangecoder"
2409 ffv1_encoder_select="rangecoder"
2410 ffvhuff_decoder_select="huffyuv_decoder"
2411 ffvhuff_encoder_select="huffyuv_encoder"
2412 fic_decoder_select="golomb"
2413 flac_decoder_select="flacdsp golomb"
2414 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2415 flashsv2_decoder_select="zlib"
2416 flashsv2_encoder_select="zlib"
2417 flashsv_decoder_select="zlib"
2418 flashsv_encoder_select="zlib"
2419 flv_decoder_select="h263_decoder"
2420 flv_encoder_select="h263_encoder"
2421 fourxm_decoder_select="blockdsp bswapdsp"
2422 fraps_decoder_select="bswapdsp huffman"
2423 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2424 g729_decoder_select="audiodsp"
2425 h261_decoder_select="mpegvideo"
2426 h261_encoder_select="aandcttables mpegvideoenc"
2427 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2428 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2429 h263i_decoder_select="h263_decoder"
2430 h263p_decoder_select="h263_decoder"
2431 h263p_encoder_select="h263_encoder"
2432 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2433 h264_decoder_suggest="error_resilience"
2434 hap_decoder_select="snappy texturedsp"
2435 hap_encoder_deps="libsnappy"
2436 hap_encoder_select="texturedspenc"
2437 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2438 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2439 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2440 iac_decoder_select="imc_decoder"
2441 imc_decoder_select="bswapdsp fft mdct sinewin"
2442 indeo3_decoder_select="hpeldsp"
2443 indeo4_decoder_select="ividsp"
2444 indeo5_decoder_select="ividsp"
2445 interplay_video_decoder_select="hpeldsp"
2446 jpegls_decoder_select="golomb mjpeg_decoder"
2447 jpegls_encoder_select="golomb"
2448 jv_decoder_select="blockdsp"
2449 lagarith_decoder_select="llviddsp"
2450 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2451 loco_decoder_select="golomb"
2452 magicyuv_decoder_select="llviddsp"
2453 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2454 metasound_decoder_select="lsp mdct sinewin"
2455 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2456 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2457 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2458 mjpegb_decoder_select="mjpeg_decoder"
2459 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2460 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2461 mlp_decoder_select="mlp_parser"
2462 motionpixels_decoder_select="bswapdsp"
2463 mp1_decoder_select="mpegaudio"
2464 mp1float_decoder_select="mpegaudio"
2465 mp2_decoder_select="mpegaudio"
2466 mp2float_decoder_select="mpegaudio"
2467 mp3_decoder_select="mpegaudio"
2468 mp3adu_decoder_select="mpegaudio"
2469 mp3adufloat_decoder_select="mpegaudio"
2470 mp3float_decoder_select="mpegaudio"
2471 mp3on4_decoder_select="mpegaudio"
2472 mp3on4float_decoder_select="mpegaudio"
2473 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2474 mpc8_decoder_select="mpegaudiodsp"
2475 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2476 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2477 mpegvideo_decoder_select="mpegvideo"
2478 mpeg1video_decoder_select="mpegvideo"
2479 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2480 mpeg2video_decoder_select="mpegvideo"
2481 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2482 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2483 mpeg4_encoder_select="h263_encoder"
2484 msa1_decoder_select="mss34dsp"
2485 msmpeg4v1_decoder_select="h263_decoder"
2486 msmpeg4v2_decoder_select="h263_decoder"
2487 msmpeg4v2_encoder_select="h263_encoder"
2488 msmpeg4v3_decoder_select="h263_decoder"
2489 msmpeg4v3_encoder_select="h263_encoder"
2490 mss2_decoder_select="vc1_decoder mpegvideo"
2491 mts2_decoder_select="mss34dsp"
2492 mxpeg_decoder_select="mjpeg_decoder"
2493 nellymoser_decoder_select="mdct sinewin"
2494 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2495 nuv_decoder_select="idctdsp lzo"
2496 on2avc_decoder_select="mdct"
2497 opus_decoder_deps="swresample"
2498 opus_decoder_select="mdct15"
2499 opus_encoder_select="audio_frame_queue mdct15"
2500 png_decoder_select="zlib"
2501 png_encoder_select="llvidencdsp zlib"
2502 prores_decoder_select="blockdsp idctdsp"
2503 prores_encoder_select="fdctdsp"
2504 qcelp_decoder_select="lsp"
2505 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2506 ra_144_decoder_select="audiodsp"
2507 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2508 ralf_decoder_select="golomb"
2509 rawvideo_decoder_select="bswapdsp"
2510 rscc_decoder_select="zlib"
2511 rtjpeg_decoder_select="me_cmp"
2512 rv10_decoder_select="h263_decoder"
2513 rv10_encoder_select="h263_encoder"
2514 rv20_decoder_select="h263_decoder"
2515 rv20_encoder_select="h263_encoder"
2516 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2517 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2518 screenpresso_decoder_select="zlib"
2519 shorten_decoder_select="golomb bswapdsp"
2520 sipr_decoder_select="lsp"
2521 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2522 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2523 sonic_decoder_select="golomb rangecoder"
2524 sonic_encoder_select="golomb rangecoder"
2525 sonic_ls_encoder_select="golomb rangecoder"
2526 sp5x_decoder_select="mjpeg_decoder"
2527 svq1_decoder_select="hpeldsp"
2528 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2529 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2530 svq3_decoder_suggest="zlib"
2531 tak_decoder_select="audiodsp"
2532 tdsc_decoder_select="zlib mjpeg_decoder"
2533 theora_decoder_select="vp3_decoder"
2534 thp_decoder_select="mjpeg_decoder"
2535 tiff_decoder_suggest="zlib lzma"
2536 tiff_encoder_suggest="zlib"
2537 truehd_decoder_select="mlp_parser"
2538 truemotion2_decoder_select="bswapdsp"
2539 truespeech_decoder_select="bswapdsp"
2540 tscc_decoder_select="zlib"
2541 twinvq_decoder_select="mdct lsp sinewin"
2542 txd_decoder_select="texturedsp"
2543 utvideo_decoder_select="bswapdsp llviddsp"
2544 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2545 vble_decoder_select="llviddsp"
2546 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2547 vc1_qsv_decoder_deps="libmfx"
2548 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2549 vc1image_decoder_select="vc1_decoder"
2550 vorbis_decoder_select="mdct"
2551 vorbis_encoder_select="mdct"
2552 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2553 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2554 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2555 vp6a_decoder_select="vp6_decoder"
2556 vp6f_decoder_select="vp6_decoder"
2557 vp7_decoder_select="h264pred videodsp vp8dsp"
2558 vp8_decoder_select="h264pred videodsp vp8dsp"
2559 vp9_decoder_select="videodsp vp9_parser"
2560 webp_decoder_select="vp8_decoder exif"
2561 wmalossless_decoder_select="llauddsp"
2562 wmapro_decoder_select="mdct sinewin wma_freqs"
2563 wmav1_decoder_select="mdct sinewin wma_freqs"
2564 wmav1_encoder_select="mdct sinewin wma_freqs"
2565 wmav2_decoder_select="mdct sinewin wma_freqs"
2566 wmav2_encoder_select="mdct sinewin wma_freqs"
2567 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2568 wmv1_decoder_select="h263_decoder"
2569 wmv1_encoder_select="h263_encoder"
2570 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2571 wmv2_encoder_select="h263_encoder wmv2dsp"
2572 wmv3_decoder_select="vc1_decoder"
2573 wmv3image_decoder_select="wmv3_decoder"
2574 xma1_decoder_select="wmapro_decoder"
2575 xma2_decoder_select="wmapro_decoder"
2576 zerocodec_decoder_select="zlib"
2577 zlib_decoder_select="zlib"
2578 zlib_encoder_select="zlib"
2579 zmbv_decoder_select="zlib"
2580 zmbv_encoder_select="zlib"
2581
2582 # platform codecs
2583 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2584 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2585
2586 # hardware accelerators
2587 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2588 cuda_deps_any="dlopen LoadLibrary"
2589 cuvid_deps="cuda"
2590 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2591 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2592 dxva2_extralibs="-luser32"
2593 vaapi_deps="va_va_h"
2594 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2595 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2596 vda_deps="vda_framework pthreads"
2597 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2598 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2599 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2600 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2601 xvmc_deps="X11_extensions_XvMClib_h"
2602
2603 h263_vaapi_hwaccel_deps="vaapi"
2604 h263_vaapi_hwaccel_select="h263_decoder"
2605 h263_videotoolbox_hwaccel_deps="videotoolbox"
2606 h263_videotoolbox_hwaccel_select="h263_decoder"
2607 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2608 h264_cuvid_hwaccel_deps="cuda cuvid"
2609 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2610 h264_d3d11va_hwaccel_deps="d3d11va"
2611 h264_d3d11va_hwaccel_select="h264_decoder"
2612 h264_dxva2_hwaccel_deps="dxva2"
2613 h264_dxva2_hwaccel_select="h264_decoder"
2614 h264_mediacodec_decoder_deps="mediacodec"
2615 h264_mediacodec_hwaccel_deps="mediacodec"
2616 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2617 h264_mmal_decoder_deps="mmal"
2618 h264_mmal_decoder_select="mmal"
2619 h264_mmal_hwaccel_deps="mmal"
2620 h264_omx_encoder_deps="omx"
2621 h264_qsv_hwaccel_deps="libmfx"
2622 h264_vaapi_hwaccel_deps="vaapi"
2623 h264_vaapi_hwaccel_select="h264_decoder"
2624 h264_vda_decoder_deps="vda"
2625 h264_vda_decoder_select="h264_decoder"
2626 h264_vda_hwaccel_deps="vda"
2627 h264_vda_hwaccel_select="h264_decoder"
2628 h264_vda_old_hwaccel_deps="vda"
2629 h264_vda_old_hwaccel_select="h264_decoder"
2630 h264_vdpau_decoder_deps="vdpau"
2631 h264_vdpau_decoder_select="h264_decoder"
2632 h264_vdpau_hwaccel_deps="vdpau"
2633 h264_vdpau_hwaccel_select="h264_decoder"
2634 h264_videotoolbox_hwaccel_deps="videotoolbox"
2635 h264_videotoolbox_hwaccel_select="h264_decoder"
2636 hevc_cuvid_hwaccel_deps="cuda cuvid"
2637 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2638 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2639 hevc_d3d11va_hwaccel_select="hevc_decoder"
2640 hevc_mediacodec_decoder_deps="mediacodec"
2641 hevc_mediacodec_hwaccel_deps="mediacodec"
2642 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2643 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2644 hevc_dxva2_hwaccel_select="hevc_decoder"
2645 hevc_qsv_hwaccel_deps="libmfx"
2646 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2647 hevc_vaapi_hwaccel_select="hevc_decoder"
2648 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2649 hevc_vdpau_hwaccel_select="hevc_decoder"
2650 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2651 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2652 mpeg_vdpau_decoder_deps="vdpau"
2653 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2654 mpeg_xvmc_hwaccel_deps="xvmc"
2655 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2656 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2657 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2658 mpeg1_vdpau_decoder_deps="vdpau"
2659 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2660 mpeg1_vdpau_hwaccel_deps="vdpau"
2661 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2662 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2663 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2664 mpeg1_xvmc_hwaccel_deps="xvmc"
2665 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2666 mpeg2_crystalhd_decoder_select="crystalhd"
2667 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2668 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2669 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2670 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_dxva2_hwaccel_deps="dxva2"
2672 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2673 mpeg2_mmal_decoder_deps="mmal"
2674 mpeg2_mmal_decoder_select="mmal"
2675 mpeg2_mmal_hwaccel_deps="mmal"
2676 mpeg2_qsv_hwaccel_deps="libmfx"
2677 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2678 mpeg2_vaapi_hwaccel_deps="vaapi"
2679 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2680 mpeg2_vdpau_hwaccel_deps="vdpau"
2681 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2682 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2683 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2684 mpeg2_xvmc_hwaccel_deps="xvmc"
2685 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2686 mpeg4_crystalhd_decoder_select="crystalhd"
2687 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2688 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2689 mpeg4_mediacodec_decoder_deps="mediacodec"
2690 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2691 mpeg4_mmal_decoder_deps="mmal"
2692 mpeg4_mmal_decoder_select="mmal"
2693 mpeg4_mmal_hwaccel_deps="mmal"
2694 mpeg4_omx_encoder_deps="omx"
2695 mpeg4_vaapi_hwaccel_deps="vaapi"
2696 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2697 mpeg4_vdpau_decoder_deps="vdpau"
2698 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2699 mpeg4_vdpau_hwaccel_deps="vdpau"
2700 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2701 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2702 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2703 msmpeg4_crystalhd_decoder_select="crystalhd"
2704 vc1_crystalhd_decoder_select="crystalhd"
2705 vc1_cuvid_hwaccel_deps="cuda cuvid"
2706 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2707 vc1_d3d11va_hwaccel_deps="d3d11va"
2708 vc1_d3d11va_hwaccel_select="vc1_decoder"
2709 vc1_dxva2_hwaccel_deps="dxva2"
2710 vc1_dxva2_hwaccel_select="vc1_decoder"
2711 vc1_mmal_decoder_deps="mmal"
2712 vc1_mmal_decoder_select="mmal"
2713 vc1_mmal_hwaccel_deps="mmal"
2714 vc1_qsv_hwaccel_deps="libmfx"
2715 vc1_qsv_hwaccel_select="qsvdec_vc1"
2716 vc1_vaapi_hwaccel_deps="vaapi"
2717 vc1_vaapi_hwaccel_select="vc1_decoder"
2718 vc1_vdpau_decoder_deps="vdpau"
2719 vc1_vdpau_decoder_select="vc1_decoder"
2720 vc1_vdpau_hwaccel_deps="vdpau"
2721 vc1_vdpau_hwaccel_select="vc1_decoder"
2722 vp8_cuvid_hwaccel_deps="cuda cuvid"
2723 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2724 vp9_cuvid_hwaccel_deps="cuda cuvid"
2725 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2726 vp8_mediacodec_decoder_deps="mediacodec"
2727 vp8_mediacodec_hwaccel_deps="mediacodec"
2728 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2729 vp9_d3d11va_hwaccel_select="vp9_decoder"
2730 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2731 vp9_dxva2_hwaccel_select="vp9_decoder"
2732 vp9_mediacodec_decoder_deps="mediacodec"
2733 vp9_mediacodec_hwaccel_deps="mediacodec"
2734 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2735 vp9_vaapi_hwaccel_select="vp9_decoder"
2736 wmv3_crystalhd_decoder_select="crystalhd"
2737 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2738 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2739 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2740 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2741 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2742
2743 # hardware-accelerated codecs
2744 omx_deps="dlopen pthreads"
2745 omx_extralibs='$ldl'
2746 qsvdec_select="qsv"
2747 qsvenc_select="qsv"
2748 vaapi_encode_deps="vaapi"
2749
2750 hwupload_cuda_filter_deps="cuda"
2751 scale_npp_filter_deps="cuda libnpp"
2752
2753 nvenc_deps="cuda"
2754 nvenc_deps_any="dlopen LoadLibrary"
2755 nvenc_encoder_deps="nvenc"
2756 h264_cuvid_decoder_deps="cuda cuvid"
2757 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2758 h264_nvenc_encoder_deps="nvenc"
2759 h264_qsv_decoder_deps="libmfx"
2760 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2761 h264_qsv_encoder_deps="libmfx"
2762 h264_qsv_encoder_select="qsvenc"
2763 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2764 h264_vaapi_encoder_select="vaapi_encode golomb"
2765
2766 hevc_cuvid_decoder_deps="cuda cuvid"
2767 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2768 hevc_nvenc_encoder_deps="nvenc"
2769 hevc_qsv_decoder_deps="libmfx"
2770 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2771 hevc_qsv_encoder_deps="libmfx"
2772 hevc_qsv_encoder_select="qsvenc"
2773 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2774 hevc_vaapi_encoder_select="vaapi_encode golomb"
2775 mjpeg_cuvid_decoder_deps="cuda cuvid"
2776 mpeg1_cuvid_decoder_deps="cuda cuvid"
2777 mpeg2_cuvid_decoder_deps="cuda cuvid"
2778 mpeg2_qsv_decoder_deps="libmfx"
2779 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2780 mpeg2_qsv_encoder_deps="libmfx"
2781 mpeg2_qsv_encoder_select="qsvenc"
2782 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2783 mpeg2_vaapi_encoder_select="vaapi_encode"
2784 mpeg4_cuvid_decoder_deps="cuda cuvid"
2785 nvenc_h264_encoder_deps="nvenc"
2786 nvenc_hevc_encoder_deps="nvenc"
2787
2788 vc1_cuvid_decoder_deps="cuda cuvid"
2789 vp8_cuvid_decoder_deps="cuda cuvid"
2790 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2791 vp8_vaapi_encoder_select="vaapi_encode"
2792 vp9_cuvid_decoder_deps="cuda cuvid"
2793
2794 # parsers
2795 h264_parser_select="golomb h264dsp h264parse"
2796 hevc_parser_select="golomb"
2797 mpegvideo_parser_select="mpegvideo"
2798 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2799 vc1_parser_select="vc1dsp"
2800
2801 # bitstream_filters
2802 mjpeg2jpeg_bsf_select="jpegtables"
2803
2804 # external libraries
2805 aac_at_decoder_deps="audiotoolbox"
2806 ac3_at_decoder_deps="audiotoolbox"
2807 ac3_at_decoder_select="ac3_parser"
2808 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2809 alac_at_decoder_deps="audiotoolbox"
2810 amr_nb_at_decoder_deps="audiotoolbox"
2811 avisynth_deps_any="dlopen LoadLibrary"
2812 avisynth_demuxer_deps="avisynth"
2813 avisynth_demuxer_select="riffdec"
2814 eac3_at_decoder_deps="audiotoolbox"
2815 eac3_at_decoder_select="ac3_parser"
2816 gsm_ms_at_decoder_deps="audiotoolbox"
2817 ilbc_at_decoder_deps="audiotoolbox"
2818 mp1_at_decoder_deps="audiotoolbox"
2819 mp2_at_decoder_deps="audiotoolbox"
2820 mp3_at_decoder_deps="audiotoolbox"
2821 pcm_alaw_at_decoder_deps="audiotoolbox"
2822 pcm_mulaw_at_decoder_deps="audiotoolbox"
2823 qdmc_at_decoder_deps="audiotoolbox"
2824 qdm2_at_decoder_deps="audiotoolbox"
2825 aac_at_encoder_deps="audiotoolbox"
2826 aac_at_encoder_select="audio_frame_queue"
2827 alac_at_encoder_deps="audiotoolbox"
2828 alac_at_encoder_select="audio_frame_queue"
2829 ilbc_at_encoder_deps="audiotoolbox"
2830 ilbc_at_encoder_select="audio_frame_queue"
2831 pcm_alaw_at_encoder_deps="audiotoolbox"
2832 pcm_alaw_at_encoder_select="audio_frame_queue"
2833 pcm_mulaw_at_encoder_deps="audiotoolbox"
2834 pcm_mulaw_at_encoder_select="audio_frame_queue"
2835 chromaprint_muxer_deps="chromaprint"
2836 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2837 libcelt_decoder_deps="libcelt"
2838 libfdk_aac_decoder_deps="libfdk_aac"
2839 libfdk_aac_encoder_deps="libfdk_aac"
2840 libfdk_aac_encoder_select="audio_frame_queue"
2841 libgme_demuxer_deps="libgme"
2842 libgsm_decoder_deps="libgsm"
2843 libgsm_encoder_deps="libgsm"
2844 libgsm_ms_decoder_deps="libgsm"
2845 libgsm_ms_encoder_deps="libgsm"
2846 libilbc_decoder_deps="libilbc"
2847 libilbc_encoder_deps="libilbc"
2848 libkvazaar_encoder_deps="libkvazaar"
2849 libmodplug_demuxer_deps="libmodplug"
2850 libmp3lame_encoder_deps="libmp3lame"
2851 libmp3lame_encoder_select="audio_frame_queue"
2852 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2853 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2854 libopencore_amrnb_encoder_select="audio_frame_queue"
2855 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2856 libopenh264_decoder_deps="libopenh264"
2857 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2858 libopenh264_encoder_deps="libopenh264"
2859 libopenjpeg_decoder_deps="libopenjpeg"
2860 libopenjpeg_encoder_deps="libopenjpeg"
2861 libopenmpt_demuxer_deps="libopenmpt"
2862 libopus_decoder_deps="libopus"
2863 libopus_encoder_deps="libopus"
2864 libopus_encoder_select="audio_frame_queue"
2865 libschroedinger_decoder_deps="libschroedinger"
2866 libschroedinger_encoder_deps="libschroedinger"
2867 libshine_encoder_deps="libshine"
2868 libshine_encoder_select="audio_frame_queue"
2869 libspeex_decoder_deps="libspeex"
2870 libspeex_encoder_deps="libspeex"
2871 libspeex_encoder_select="audio_frame_queue"
2872 libtheora_encoder_deps="libtheora"
2873 libtwolame_encoder_deps="libtwolame"
2874 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2875 libvorbis_decoder_deps="libvorbis"
2876 libvorbis_encoder_deps="libvorbis"
2877 libvorbis_encoder_select="audio_frame_queue"
2878 libvpx_vp8_decoder_deps="libvpx"
2879 libvpx_vp8_encoder_deps="libvpx"
2880 libvpx_vp9_decoder_deps="libvpx"
2881 libvpx_vp9_encoder_deps="libvpx"
2882 libwavpack_encoder_deps="libwavpack"
2883 libwebp_encoder_deps="libwebp"
2884 libwebp_anim_encoder_deps="libwebp"
2885 libx262_encoder_deps="libx262"
2886 libx264_encoder_deps="libx264"
2887 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2888 libx264rgb_encoder_select="libx264_encoder"
2889 libx265_encoder_deps="libx265"
2890 libxavs_encoder_deps="libxavs"
2891 libxvid_encoder_deps="libxvid"
2892 libzvbi_teletext_decoder_deps="libzvbi"
2893 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2894 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2895 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2896 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2897 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2898
2899 # demuxers / muxers
2900 ac3_demuxer_select="ac3_parser"
2901 aiff_muxer_select="iso_media"
2902 asf_demuxer_select="riffdec"
2903 asf_o_demuxer_select="riffdec"
2904 asf_muxer_select="riffenc"
2905 asf_stream_muxer_select="asf_muxer"
2906 avi_demuxer_select="iso_media riffdec exif"
2907 avi_muxer_select="riffenc"
2908 caf_demuxer_select="iso_media riffdec"
2909 caf_muxer_select="iso_media"
2910 dash_muxer_select="mp4_muxer"
2911 dirac_demuxer_select="dirac_parser"
2912 dts_demuxer_select="dca_parser"
2913 dtshd_demuxer_select="dca_parser"
2914 dv_demuxer_select="dvprofile"
2915 dv_muxer_select="dvprofile"
2916 dxa_demuxer_select="riffdec"
2917 eac3_demuxer_select="ac3_parser"
2918 f4v_muxer_select="mov_muxer"
2919 fifo_muxer_deps="threads"
2920 flac_demuxer_select="flac_parser"
2921 hds_muxer_select="flv_muxer"
2922 hls_muxer_select="mpegts_muxer"
2923 image2_alias_pix_demuxer_select="image2_demuxer"
2924 image2_brender_pix_demuxer_select="image2_demuxer"
2925 ipod_muxer_select="mov_muxer"
2926 ismv_muxer_select="mov_muxer"
2927 libnut_demuxer_deps="libnut"
2928 libnut_muxer_deps="libnut"
2929 matroska_audio_muxer_select="matroska_muxer"
2930 matroska_demuxer_select="iso_media riffdec"
2931 matroska_demuxer_suggest="bzlib lzo zlib"
2932 matroska_muxer_select="iso_media riffenc"
2933 mmf_muxer_select="riffenc"
2934 mov_demuxer_select="iso_media riffdec"
2935 mov_demuxer_suggest="zlib"
2936 mov_muxer_select="iso_media riffenc rtpenc_chain"
2937 mp3_demuxer_select="mpegaudio_parser"
2938 mp4_muxer_select="mov_muxer"
2939 mpegts_demuxer_select="iso_media"
2940 mpegts_muxer_select="adts_muxer latm_muxer"
2941 mpegtsraw_demuxer_select="mpegts_demuxer"
2942 mxf_d10_muxer_select="mxf_muxer"
2943 mxf_opatom_muxer_select="mxf_muxer"
2944 nut_muxer_select="riffenc"
2945 nuv_demuxer_select="riffdec"
2946 oga_muxer_select="ogg_muxer"
2947 ogg_demuxer_select="dirac_parse"
2948 ogv_muxer_select="ogg_muxer"
2949 opus_muxer_select="ogg_muxer"
2950 psp_muxer_select="mov_muxer"
2951 rtp_demuxer_select="sdp_demuxer"
2952 rtp_muxer_select="golomb"
2953 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2954 rtsp_demuxer_select="http_protocol rtpdec"
2955 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2956 sap_demuxer_select="sdp_demuxer"
2957 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2958 sdp_demuxer_select="rtpdec"
2959 smoothstreaming_muxer_select="ismv_muxer"
2960 spdif_muxer_select="aac_parser"
2961 spx_muxer_select="ogg_muxer"
2962 swf_demuxer_suggest="zlib"
2963 tak_demuxer_select="tak_parser"
2964 tg2_muxer_select="mov_muxer"
2965 tgp_muxer_select="mov_muxer"
2966 vobsub_demuxer_select="mpegps_demuxer"
2967 w64_demuxer_select="wav_demuxer"
2968 w64_muxer_select="wav_muxer"
2969 wav_demuxer_select="riffdec"
2970 wav_muxer_select="riffenc"
2971 webm_muxer_select="iso_media riffenc"
2972 webm_dash_manifest_demuxer_select="matroska_demuxer"
2973 wtv_demuxer_select="mpegts_demuxer riffdec"
2974 wtv_muxer_select="mpegts_muxer riffenc"
2975 xmv_demuxer_select="riffdec"
2976 xwma_demuxer_select="riffdec"
2977
2978 # indevs / outdevs
2979 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2980 alsa_outdev_deps="alsa_asoundlib_h"
2981 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2982 avfoundation_indev_select="avfoundation"
2983 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2984 caca_outdev_deps="libcaca"
2985 decklink_indev_deps="decklink pthreads"
2986 decklink_indev_extralibs="-lstdc++"
2987 decklink_outdev_deps="decklink pthreads"
2988 decklink_outdev_extralibs="-lstdc++"
2989 dshow_indev_deps="IBaseFilter"
2990 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2991 dv1394_indev_deps="dv1394"
2992 dv1394_indev_select="dv_demuxer"
2993 fbdev_indev_deps="linux_fb_h"
2994 fbdev_outdev_deps="linux_fb_h"
2995 gdigrab_indev_deps="CreateDIBSection"
2996 gdigrab_indev_extralibs="-lgdi32"
2997 gdigrab_indev_select="bmp_decoder"
2998 iec61883_indev_deps="libiec61883"
2999 jack_indev_deps="jack_jack_h"
3000 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3001 lavfi_indev_deps="avfilter"
3002 libcdio_indev_deps="libcdio"
3003 libdc1394_indev_deps="libdc1394"
3004 libv4l2_indev_deps="libv4l2"
3005 openal_indev_deps="openal"
3006 opengl_outdev_deps="opengl"
3007 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3008 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3009 pulse_indev_deps="libpulse"
3010 pulse_outdev_deps="libpulse"
3011 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3012 qtkit_indev_select="qtkit"
3013 sdl2_outdev_deps="sdl2"
3014 sndio_indev_deps="sndio_h"
3015 sndio_outdev_deps="sndio_h"
3016 v4l_indev_deps="linux_videodev_h"
3017 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3018 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3019 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3020 vfwcap_indev_extralibs="-lavicap32"
3021 xcbgrab_indev_deps="libxcb"
3022 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3023 xv_outdev_extralibs="-lXv -lX11 -lXext"
3024
3025 # protocols
3026 async_protocol_deps="threads"
3027 bluray_protocol_deps="libbluray"
3028 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3029 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3030 ffrtmpcrypt_protocol_select="tcp_protocol"
3031 ffrtmphttp_protocol_deps="!librtmp_protocol"
3032 ffrtmphttp_protocol_select="http_protocol"
3033 ftp_protocol_select="tcp_protocol"
3034 gopher_protocol_select="network"
3035 http_protocol_select="tcp_protocol"
3036 httpproxy_protocol_select="tcp_protocol"
3037 https_protocol_select="tls_protocol"
3038 icecast_protocol_select="http_protocol"
3039 librtmp_protocol_deps="librtmp"
3040 librtmpe_protocol_deps="librtmp"
3041 librtmps_protocol_deps="librtmp"
3042 librtmpt_protocol_deps="librtmp"
3043 librtmpte_protocol_deps="librtmp"
3044 libsmbclient_protocol_deps="libsmbclient gplv3"
3045 libssh_protocol_deps="libssh"
3046 mmsh_protocol_select="http_protocol"
3047 mmst_protocol_select="network"
3048 rtmp_protocol_deps="!librtmp_protocol"
3049 rtmp_protocol_select="tcp_protocol"
3050 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3051 rtmps_protocol_deps="!librtmp_protocol"
3052 rtmps_protocol_select="tls_protocol"
3053 rtmpt_protocol_select="ffrtmphttp_protocol"
3054 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3055 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3056 rtp_protocol_select="udp_protocol"
3057 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3058 sctp_protocol_select="network"
3059 srtp_protocol_select="rtp_protocol srtp"
3060 tcp_protocol_select="network"
3061 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3062 tls_gnutls_protocol_select="tcp_protocol"
3063 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3064 tls_openssl_protocol_select="tcp_protocol"
3065 tls_schannel_protocol_deps="schannel"
3066 tls_schannel_protocol_select="tcp_protocol"
3067 tls_securetransport_protocol_deps="securetransport"
3068 tls_securetransport_protocol_select="tcp_protocol"
3069 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3070 udp_protocol_select="network"
3071 udplite_protocol_select="network"
3072 unix_protocol_deps="sys_un_h"
3073 unix_protocol_select="network"
3074
3075 # filters
3076 afftfilt_filter_deps="avcodec"
3077 afftfilt_filter_select="fft"
3078 amovie_filter_deps="avcodec avformat"
3079 aresample_filter_deps="swresample"
3080 ass_filter_deps="libass"
3081 atempo_filter_deps="avcodec"
3082 atempo_filter_select="rdft"
3083 azmq_filter_deps="libzmq"
3084 blackframe_filter_deps="gpl"
3085 boxblur_filter_deps="gpl"
3086 bs2b_filter_deps="libbs2b"
3087 colormatrix_filter_deps="gpl"
3088 cover_rect_filter_deps="avcodec avformat gpl"
3089 cropdetect_filter_deps="gpl"
3090 deinterlace_qsv_filter_deps="libmfx"
3091 deinterlace_vaapi_filter_deps="vaapi"
3092 delogo_filter_deps="gpl"
3093 deshake_filter_select="pixelutils"
3094 drawtext_filter_deps="libfreetype"
3095 eq_filter_deps="gpl"
3096 fftfilt_filter_deps="avcodec"
3097 fftfilt_filter_select="rdft"
3098 find_rect_filter_deps="avcodec avformat gpl"
3099 firequalizer_filter_deps="avcodec"
3100 firequalizer_filter_select="rdft"
3101 flite_filter_deps="libflite"
3102 framerate_filter_select="pixelutils"
3103 frei0r_filter_deps="frei0r dlopen"
3104 frei0r_src_filter_deps="frei0r dlopen"
3105 fspp_filter_deps="gpl"
3106 geq_filter_deps="gpl"
3107 histeq_filter_deps="gpl"
3108 hqdn3d_filter_deps="gpl"
3109 interlace_filter_deps="gpl"
3110 kerndeint_filter_deps="gpl"
3111 ladspa_filter_deps="ladspa dlopen"
3112 mcdeint_filter_deps="avcodec gpl"
3113 movie_filter_deps="avcodec avformat"
3114 mpdecimate_filter_deps="gpl"
3115 mpdecimate_filter_select="pixelutils"
3116 mptestsrc_filter_deps="gpl"
3117 negate_filter_deps="lut_filter"
3118 nnedi_filter_deps="gpl"
3119 ocr_filter_deps="libtesseract"
3120 ocv_filter_deps="libopencv"
3121 owdenoise_filter_deps="gpl"
3122 pan_filter_deps="swresample"
3123 perspective_filter_deps="gpl"
3124 phase_filter_deps="gpl"
3125 pp7_filter_deps="gpl"
3126 pp_filter_deps="gpl postproc"
3127 pullup_filter_deps="gpl"
3128 removelogo_filter_deps="avcodec avformat swscale"
3129 repeatfields_filter_deps="gpl"
3130 resample_filter_deps="avresample"
3131 rubberband_filter_deps="librubberband"
3132 sab_filter_deps="gpl swscale"
3133 scale2ref_filter_deps="swscale"
3134 scale_filter_deps="swscale"
3135 scale_qsv_filter_deps="libmfx"
3136 select_filter_select="pixelutils"
3137 showcqt_filter_deps="avcodec avformat swscale"
3138 showcqt_filter_select="fft"
3139 showfreqs_filter_deps="avcodec"
3140 showfreqs_filter_select="fft"
3141 showspectrum_filter_deps="avcodec"
3142 showspectrum_filter_select="fft"
3143 showspectrumpic_filter_deps="avcodec"
3144 showspectrumpic_filter_select="fft"
3145 signature_filter_deps="gpl avcodec avformat"
3146 smartblur_filter_deps="gpl swscale"
3147 sofalizer_filter_deps="netcdf avcodec"
3148 sofalizer_filter_select="fft"
3149 spectrumsynth_filter_deps="avcodec"
3150 spectrumsynth_filter_select="fft"
3151 spp_filter_deps="gpl avcodec"
3152 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3153 stereo3d_filter_deps="gpl"
3154 subtitles_filter_deps="avformat avcodec libass"
3155 super2xsai_filter_deps="gpl"
3156 pixfmts_super2xsai_test_deps="super2xsai_filter"
3157 tinterlace_filter_deps="gpl"
3158 tinterlace_merge_test_deps="tinterlace_filter"
3159 tinterlace_pad_test_deps="tinterlace_filter"
3160 uspp_filter_deps="gpl avcodec"
3161 vaguedenoiser_filter_deps="gpl"
3162 vidstabdetect_filter_deps="libvidstab"
3163 vidstabtransform_filter_deps="libvidstab"
3164 zmq_filter_deps="libzmq"
3165 zoompan_filter_deps="swscale"
3166 zscale_filter_deps="libzimg"
3167 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3168
3169 # examples
3170 avio_dir_cmd_deps="avformat avutil"
3171 avio_reading_deps="avformat avcodec avutil"
3172 decode_audio_example_deps="avcodec avutil"
3173 decoding_encoding_example_deps="avcodec avformat avutil"
3174 demuxing_decoding_example_deps="avcodec avformat avutil"
3175 encode_audio_example_deps="avcodec avutil"
3176 extract_mvs_example_deps="avcodec avformat avutil"
3177 filter_audio_example_deps="avfilter avutil"
3178 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3179 filtering_video_example_deps="avfilter avcodec avformat avutil"
3180 http_multiclient_example_deps="avformat avutil fork"
3181 metadata_example_deps="avformat avutil"
3182 muxing_example_deps="avcodec avformat avutil swscale"
3183 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3184 remuxing_example_deps="avcodec avformat avutil"
3185 resampling_audio_example_deps="avutil swresample"
3186 scaling_video_example_deps="avutil swscale"
3187 transcode_aac_example_deps="avcodec avformat swresample"
3188 transcoding_example_deps="avfilter avcodec avformat avutil"
3189
3190 # libraries, in linking order
3191 avcodec_deps="avutil"
3192 avdevice_deps="avformat avcodec avutil"
3193 avfilter_deps="avutil"
3194 avformat_deps="avcodec avutil"
3195 avresample_deps="avutil"
3196 postproc_deps="avutil gpl"
3197 swresample_deps="avutil"
3198 swscale_deps="avutil"
3199
3200 # programs
3201 ffmpeg_deps="avcodec avfilter avformat swresample"
3202 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3203                null_filter
3204                trim_filter"
3205 ffplay_deps="avcodec avformat swscale swresample sdl2"
3206 ffplay_libs='$sdl2_libs'
3207 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3208 ffprobe_deps="avcodec avformat"
3209 ffserver_deps="avformat fork sarestart"
3210 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3211
3212 # documentation
3213 podpages_deps="perl"
3214 manpages_deps="perl pod2man"
3215 htmlpages_deps="perl"
3216 htmlpages_deps_any="makeinfo_html texi2html"
3217 txtpages_deps="perl makeinfo"
3218 doc_deps_any="manpages htmlpages podpages txtpages"
3219
3220 # default parameters
3221
3222 logfile="config.log"
3223
3224 # installation paths
3225 prefix_default="/usr/local"
3226 bindir_default='${prefix}/bin'
3227 datadir_default='${prefix}/share/ffmpeg'
3228 docdir_default='${prefix}/share/doc/ffmpeg'
3229 incdir_default='${prefix}/include'
3230 libdir_default='${prefix}/lib'
3231 mandir_default='${prefix}/share/man'
3232
3233 # toolchain
3234 ar_default="ar"
3235 cc_default="gcc"
3236 cxx_default="g++"
3237 host_cc_default="gcc"
3238 cp_f="cp -f"
3239 doxygen_default="doxygen"
3240 install="install"
3241 ln_s_default="ln -s -f"
3242 nm_default="nm -g"
3243 objformat="elf"
3244 pkg_config_default=pkg-config
3245 ranlib_default="ranlib"
3246 strip_default="strip"
3247 version_script='--version-script'
3248 yasmexe_default="yasm"
3249 windres_default="windres"
3250
3251 # OS
3252 target_os_default=$(tolower $(uname -s))
3253 host_os=$target_os_default
3254
3255 # machine
3256 if test "$target_os_default" = aix; then
3257     arch_default=$(uname -p)
3258     strip_default="strip -X32_64"
3259 else
3260     arch_default=$(uname -m)
3261 fi
3262 cpu="generic"
3263 intrinsics="none"
3264
3265 # configurable options
3266 enable $PROGRAM_LIST
3267 enable $DOCUMENT_LIST
3268 enable $EXAMPLE_LIST
3269 enable $(filter_out avresample $LIBRARY_LIST)
3270 enable stripping
3271
3272 enable asm
3273 enable debug
3274 enable doc
3275 enable faan faandct faanidct
3276 enable optimizations
3277 enable runtime_cpudetect
3278 enable safe_bitstream_reader
3279 enable static
3280 enable swscale_alpha
3281 enable valgrind_backtrace
3282
3283 sws_max_filter_size_default=256
3284 set_default sws_max_filter_size
3285
3286 # build settings
3287 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3288 LIBPREF="lib"
3289 LIBSUF=".a"
3290 FULLNAME='$(NAME)$(BUILDSUF)'
3291 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3292 SLIBPREF="lib"
3293 SLIBSUF=".so"
3294 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3295 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3296 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3297 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3298 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3299 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3300 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3301
3302 asflags_filter=echo
3303 cflags_filter=echo
3304 ldflags_filter=echo
3305
3306 AS_C='-c'
3307 AS_O='-o $@'
3308 CC_C='-c'
3309 CC_E='-E -o $@'
3310 CC_O='-o $@'
3311 CXX_C='-c'
3312 CXX_O='-o $@'
3313 OBJCC_C='-c'
3314 OBJCC_E='-E -o $@'
3315 OBJCC_O='-o $@'
3316 LD_O='-o $@'
3317 LD_LIB='-l%'
3318 LD_PATH='-L'
3319 HOSTCC_C='-c'
3320 HOSTCC_E='-E -o $@'
3321 HOSTCC_O='-o $@'
3322 HOSTLD_O='-o $@'
3323
3324 host_libs='-lm'
3325 host_cflags_filter=echo
3326 host_ldflags_filter=echo
3327
3328 target_path='$(CURDIR)'
3329
3330 # since the object filename is not given with the -MM flag, the compiler
3331 # is only able to print the basename, and we must add the path ourselves
3332 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3333 DEPFLAGS='-MM'
3334
3335 # find source path
3336 if test -f configure; then
3337     source_path=.
3338 else
3339     source_path=$(cd $(dirname "$0"); pwd)
3340     case "$source_path" in
3341         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3342     esac
3343     test -e "$source_path/config.h" &&
3344         die "Out of tree builds are impossible with config.h in source dir."
3345 fi
3346
3347 for v in "$@"; do
3348     r=${v#*=}
3349     l=${v%"$r"}
3350     r=$(sh_quote "$r")
3351     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3352 done
3353
3354 find_things(){
3355     thing=$1
3356     pattern=$2
3357     file=$source_path/$3
3358     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3359 }
3360
3361 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3362 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3363 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3364 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3365 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3366 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3367 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3368 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3369 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3370
3371 find_things_extern(){
3372     thing=$1
3373     pattern=$2
3374     file=$source_path/$3
3375     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3376 }
3377
3378 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3379 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3380
3381 ALL_COMPONENTS="
3382     $BSF_LIST
3383     $DECODER_LIST
3384     $DEMUXER_LIST
3385     $ENCODER_LIST
3386     $FILTER_LIST
3387     $HWACCEL_LIST
3388     $INDEV_LIST
3389     $MUXER_LIST
3390     $OUTDEV_LIST
3391     $PARSER_LIST
3392     $PROTOCOL_LIST
3393 "
3394
3395 for n in $COMPONENT_LIST; do
3396     v=$(toupper ${n%s})_LIST
3397     eval enable \$$v
3398     eval ${n}_if_any="\$$v"
3399 done
3400
3401 enable $ARCH_EXT_LIST
3402
3403 die_unknown(){
3404     echo "Unknown option \"$1\"."
3405     echo "See $0 --help for available options."
3406     exit 1
3407 }
3408
3409 print_in_columns() {
3410     cols=$(expr $ncols / 24)
3411     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3412 }
3413
3414 show_list() {
3415     suffix=_$1
3416     shift
3417     echo $* | sed s/$suffix//g | print_in_columns
3418     exit 0
3419 }
3420
3421 rand_list(){
3422     IFS=', '
3423     set -- $*
3424     unset IFS
3425     for thing; do
3426         comp=${thing%:*}
3427         prob=${thing#$comp}
3428         prob=${prob#:}
3429         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3430         echo "prob ${prob:-0.5}"
3431         printf '%s\n' $comp
3432     done
3433 }
3434
3435 do_random(){
3436     action=$1
3437     shift
3438     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3439     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3440 }
3441
3442 for opt do
3443     optval="${opt#*=}"
3444     case "$opt" in
3445         --extra-ldflags=*)
3446             add_ldflags $optval
3447         ;;
3448         --extra-ldexeflags=*)
3449             add_ldexeflags $optval
3450         ;;
3451         --extra-ldlibflags=*)
3452             add_ldlibflags $optval
3453         ;;
3454         --extra-libs=*)
3455             add_extralibs $optval
3456         ;;
3457         --disable-devices)
3458             disable $INDEV_LIST $OUTDEV_LIST
3459         ;;
3460         --enable-debug=*)
3461             debuglevel="$optval"
3462         ;;
3463         --disable-programs)
3464             disable $PROGRAM_LIST
3465         ;;
3466         --disable-everything)
3467             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3468         ;;
3469         --disable-all)
3470             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3471             disable $LIBRARY_LIST $PROGRAM_LIST doc
3472             enable avutil
3473         ;;
3474         --enable-random|--disable-random)
3475             action=${opt%%-random}
3476             do_random ${action#--} $COMPONENT_LIST
3477         ;;
3478         --enable-random=*|--disable-random=*)
3479             action=${opt%%-random=*}
3480             do_random ${action#--} $optval
3481         ;;
3482         --enable-*=*|--disable-*=*)
3483             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3484             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3485             eval list=\$$(toupper $thing)_LIST
3486             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3487             list=$(filter "$name" $list)
3488             [ "$list" = "" ] && warn "Option $opt did not match anything"
3489             $action $list
3490         ;;
3491         --enable-?*|--disable-?*)
3492             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3493             if is_in $option $COMPONENT_LIST; then
3494                 test $action = disable && action=unset
3495                 eval $action \$$(toupper ${option%s})_LIST
3496             elif is_in $option $CMDLINE_SELECT; then
3497                 $action $option
3498             else
3499                 die_unknown $opt
3500             fi
3501         ;;
3502         --list-*)
3503             NAME="${opt#--list-}"
3504             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3505             NAME=${NAME%s}
3506             eval show_list $NAME \$$(toupper $NAME)_LIST
3507         ;;
3508         --help|-h) show_help
3509         ;;
3510         --fatal-warnings) enable fatal_warnings
3511         ;;
3512         *)
3513             optname="${opt%%=*}"
3514             optname="${optname#--}"
3515             optname=$(echo "$optname" | sed 's/-/_/g')
3516             if is_in $optname $CMDLINE_SET; then
3517                 eval $optname='$optval'
3518             elif is_in $optname $CMDLINE_APPEND; then
3519                 append $optname "$optval"
3520             else
3521                 die_unknown $opt
3522             fi
3523         ;;
3524     esac
3525 done
3526
3527 for e in $env; do
3528     eval "export $e"
3529 done
3530
3531 # Mark specifically enabled, but normally autodetected libraries as requested.
3532 for lib in $AUTODETECT_LIBS; do
3533     enabled $lib && request $lib
3534 done
3535
3536 # Enable platform codecs by default.
3537 enable_weak audiotoolbox
3538
3539 # Enable hwaccels by default.
3540 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3541 enable_weak xlib
3542
3543 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3544
3545 disabled logging && logfile=/dev/null
3546
3547 # Disable all the library-specific components if the library itself
3548 # is disabled, see AVCODEC_LIST and following _LIST variables.
3549
3550 disable_components(){
3551     disabled ${1} && disable $(
3552         eval components="\$$(toupper ${1})_COMPONENTS"
3553         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3554     )
3555 }
3556
3557 map 'disable_components $v' $LIBRARY_LIST
3558
3559 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3560 set >> $logfile
3561
3562 test -n "$valgrind" && toolchain="valgrind-memcheck"
3563
3564 case "$toolchain" in
3565     *-asan)
3566         cc_default="${toolchain%-asan}"
3567         add_cflags  -fsanitize=address
3568         add_ldflags -fsanitize=address
3569     ;;
3570     *-msan)
3571         cc_default="${toolchain%-msan}"
3572         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3573         add_ldflags -fsanitize=memory
3574     ;;
3575     *-tsan)
3576         cc_default="${toolchain%-tsan}"
3577         add_cflags  -fsanitize=thread -fPIE
3578         add_ldflags -fsanitize=thread -pie
3579         case "$toolchain" in
3580             gcc-tsan)
3581                 add_cflags  -fPIC
3582                 add_ldflags -fPIC
3583                 ;;
3584         esac
3585     ;;
3586     *-usan)
3587         cc_default="${toolchain%-usan}"
3588         add_cflags  -fsanitize=undefined
3589         add_ldflags -fsanitize=undefined
3590     ;;
3591     valgrind-*)
3592         target_exec_default="valgrind"
3593         case "$toolchain" in
3594             valgrind-massif)
3595                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3596                 ;;
3597             valgrind-memcheck)
3598                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3599                 ;;
3600         esac
3601     ;;
3602     msvc)
3603         # Check whether the current MSVC version needs the C99 converter.
3604         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3605         # support enough of C99 to build ffmpeg. Default to the new
3606         # behaviour if the regexp was unable to match anything, since this
3607         # successfully parses the version number of existing supported
3608         # versions that require the converter (MSVC 2010 and 2012).
3609         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3610         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3611             cc_default="cl"
3612         else
3613             cc_default="c99wrap cl"
3614         fi
3615         ld_default="$source_path/compat/windows/mslink"
3616         nm_default="dumpbin -symbols"
3617         ar_default="lib"
3618         case "$arch" in
3619         arm*)
3620             as_default="armasm"
3621             ;;
3622         esac
3623         target_os_default="win32"
3624         # Use a relative path for TMPDIR. This makes sure all the
3625         # ffconf temp files are written with a relative path, avoiding
3626         # issues with msys/win32 path conversion for MSVC parameters
3627         # such as -Fo<file> or -out:<file>.
3628         TMPDIR=.
3629     ;;
3630     icl)
3631         cc_default="icl"
3632         ld_default="xilink"
3633         nm_default="dumpbin -symbols"
3634         ar_default="xilib"
3635         target_os_default="win32"
3636         TMPDIR=.
3637     ;;
3638     gcov)
3639         add_cflags  -fprofile-arcs -ftest-coverage
3640         add_ldflags -fprofile-arcs -ftest-coverage
3641     ;;
3642     llvm-cov)
3643         add_cflags -fprofile-arcs -ftest-coverage
3644         add_ldflags --coverage
3645     ;;
3646     hardened)
3647         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3648         add_cflags   -fno-strict-overflow -fstack-protector-all
3649         add_ldflags  -Wl,-z,relro -Wl,-z,now
3650         add_cflags   -fPIE
3651         add_ldexeflags -fPIE -pie
3652     ;;
3653     ?*)
3654         die "Unknown toolchain $toolchain"
3655     ;;
3656 esac
3657
3658 test -n "$cross_prefix" && enable cross_compile
3659
3660 if enabled cross_compile; then
3661     test -n "$arch" && test -n "$target_os" ||
3662         die "Must specify target arch and OS when cross-compiling"
3663 fi
3664
3665 ar_default="${cross_prefix}${ar_default}"
3666 cc_default="${cross_prefix}${cc_default}"
3667 cxx_default="${cross_prefix}${cxx_default}"
3668 nm_default="${cross_prefix}${nm_default}"
3669 pkg_config_default="${cross_prefix}${pkg_config_default}"
3670 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3671     ranlib_default="${cross_prefix}${ranlib_default} -D"
3672 else
3673     ranlib_default="${cross_prefix}${ranlib_default}"
3674 fi
3675 strip_default="${cross_prefix}${strip_default}"
3676 windres_default="${cross_prefix}${windres_default}"
3677
3678 sysinclude_default="${sysroot}/usr/include"
3679
3680 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3681     target_exec target_os yasmexe
3682 enabled cross_compile || host_cc_default=$cc
3683 set_default host_cc
3684
3685 pkg_config_fail_message=""
3686 if ! $pkg_config --version >/dev/null 2>&1; then
3687     warn "$pkg_config not found, library detection may fail."
3688     pkg_config=false
3689 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3690     pkg_config_fail_message="
3691 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3692 fi
3693
3694 if test $doxygen != $doxygen_default && \
3695   ! $doxygen --version >/dev/null 2>&1; then
3696     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3697 fi
3698
3699 exesuf() {
3700     case $1 in
3701         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3702     esac
3703 }
3704
3705 EXESUF=$(exesuf $target_os)
3706 HOSTEXESUF=$(exesuf $host_os)
3707
3708 # set temporary file name
3709 : ${TMPDIR:=$TEMPDIR}
3710 : ${TMPDIR:=$TMP}
3711 : ${TMPDIR:=/tmp}
3712
3713 if [ -n "$tempprefix" ] ; then
3714     mktemp(){
3715         echo $tempprefix.${HOSTNAME}.${UID}
3716     }
3717 elif ! check_cmd mktemp -u XXXXXX; then
3718     # simple replacement for missing mktemp
3719     # NOT SAFE FOR GENERAL USE
3720     mktemp(){
3721         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3722     }
3723 fi
3724
3725 tmpfile(){
3726     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3727         (set -C; exec > $tmp) 2>/dev/null ||
3728         die "Unable to create temporary file in $TMPDIR."
3729     append TMPFILES $tmp
3730     eval $1=$tmp
3731 }
3732
3733 trap 'rm -f -- $TMPFILES' EXIT
3734
3735 tmpfile TMPASM .asm
3736 tmpfile TMPC   .c
3737 tmpfile TMPCPP .cpp
3738 tmpfile TMPE   $EXESUF
3739 tmpfile TMPH   .h
3740 tmpfile TMPM   .m
3741 tmpfile TMPO   .o
3742 tmpfile TMPS   .S
3743 tmpfile TMPSH  .sh
3744 tmpfile TMPV   .ver
3745
3746 unset -f mktemp
3747
3748 chmod +x $TMPE
3749
3750 # make sure we can execute files in $TMPDIR
3751 cat > $TMPSH 2>> $logfile <<EOF
3752 #! /bin/sh
3753 EOF
3754 chmod +x $TMPSH >> $logfile 2>&1
3755 if ! $TMPSH >> $logfile 2>&1; then
3756     cat <<EOF
3757 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3758 variable to another directory and make sure that it is not mounted noexec.
3759 EOF
3760     die "Sanity test failed."
3761 fi
3762
3763 armasm_flags(){
3764     for flag; do
3765         case $flag in
3766             # Filter out MSVC cl.exe options from cflags that shouldn't
3767             # be passed to gas-preprocessor
3768             -M[TD]*)                                            ;;
3769             *)                  echo $flag                      ;;
3770         esac
3771    done
3772 }
3773
3774 ccc_flags(){
3775     for flag; do
3776         case $flag in
3777             -std=c99)           echo -c99                       ;;
3778             -mcpu=*)            echo -arch ${flag#*=}           ;;
3779             -mieee)             echo -ieee                      ;;
3780             -O*|-fast)          echo $flag                      ;;
3781             -fno-math-errno)    echo -assume nomath_errno       ;;
3782             -g)                 echo -g3                        ;;
3783             -Wall)              echo -msg_enable level2         ;;
3784             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3785             -Wl,*)              echo $flag                      ;;
3786             -f*|-W*)                                            ;;
3787             *)                  echo $flag                      ;;
3788         esac
3789    done
3790 }
3791
3792 cparser_flags(){
3793     for flag; do
3794         case $flag in
3795             -Wno-switch)             echo -Wno-switch-enum ;;
3796             -Wno-format-zero-length) ;;
3797             -Wdisabled-optimization) ;;
3798             -Wno-pointer-sign)       echo -Wno-other ;;
3799             *)                       echo $flag ;;
3800         esac
3801     done
3802 }
3803
3804 msvc_common_flags(){
3805     for flag; do
3806         case $flag in
3807             # In addition to specifying certain flags under the compiler
3808             # specific filters, they must be specified here as well or else the
3809             # generic catch all at the bottom will print the original flag.
3810             -Wall)                ;;
3811             -std=c99)             ;;
3812             # Common flags
3813             -fomit-frame-pointer) ;;
3814             -g)                   echo -Z7 ;;
3815             -fno-math-errno)      ;;
3816             -fno-common)          ;;
3817             -fno-signed-zeros)    ;;
3818             -fPIC)                ;;
3819             -mthumb)              ;;
3820             -march=*)             ;;
3821             -lz)                  echo zlib.lib ;;
3822             -lavifil32)           echo vfw32.lib ;;
3823             -lavicap32)           echo vfw32.lib user32.lib ;;
3824             -lx264)               echo libx264.lib ;;
3825             -l*)                  echo ${flag#-l}.lib ;;
3826             -LARGEADDRESSAWARE)   echo $flag ;;
3827             -L*)                  echo -libpath:${flag#-L} ;;
3828             *)                    echo $flag ;;
3829         esac
3830     done
3831 }
3832
3833 msvc_flags(){
3834     msvc_common_flags "$@"
3835     for flag; do
3836         case $flag in
3837             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3838                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3839                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3840                                        -wd4307 \
3841                                        -wd4273 -wd4554 -wd4701 ;;
3842         esac
3843     done
3844 }
3845
3846 icl_flags(){
3847     msvc_common_flags "$@"
3848     for flag; do
3849         case $flag in
3850             # Despite what Intel's documentation says -Wall, which is supported
3851             # on Windows, does enable remarks so disable them here.
3852             -Wall)                echo $flag -Qdiag-disable:remark ;;
3853             -std=c99)             echo -Qstd=c99 ;;
3854             -flto)                echo -ipo ;;
3855         esac
3856     done
3857 }
3858
3859 icc_flags(){
3860     for flag; do
3861         case $flag in
3862             -flto)                echo -ipo ;;
3863             *)                    echo $flag ;;
3864         esac
3865     done
3866 }
3867
3868 pgi_flags(){
3869     for flag; do
3870         case $flag in
3871             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3872             -fomit-frame-pointer) echo -Mnoframe ;;
3873             -g)                   echo -gopt ;;
3874             *)                    echo $flag ;;
3875         esac
3876     done
3877 }
3878
3879 suncc_flags(){
3880     for flag; do
3881         case $flag in
3882             -march=*|-mcpu=*)
3883                 case "${flag#*=}" in
3884                     native)                   echo -xtarget=native       ;;
3885                     v9|niagara)               echo -xarch=sparc          ;;
3886                     ultrasparc)               echo -xarch=sparcvis       ;;
3887                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3888                     i586|pentium)             echo -xchip=pentium        ;;
3889                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3890                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3891                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3892                     pentium4*)          echo -xtarget=pentium4           ;;
3893                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3894                     *-sse3)             echo -xarch=sse3                 ;;
3895                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3896                     bonnell)                   echo -xarch=ssse3         ;;
3897                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3898                     westmere)                  echo -xtarget=westmere    ;;
3899                     silvermont)                echo -xarch=sse4_2        ;;
3900                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3901                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3902                                                echo -xarch=avx           ;;
3903                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3904                     btver1)                    echo -xarch=amdsse4a      ;;
3905                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3906                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3907                     k8|opteron|athlon64|athlon-fx)
3908                                                echo -xarch=sse2a         ;;
3909                     athlon*)                   echo -xarch=pentium_proa  ;;
3910                 esac
3911                 ;;
3912             -std=c99)             echo -xc99              ;;
3913             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3914             -fPIC)                echo -KPIC -xcode=pic32 ;;
3915             -W*,*)                echo $flag              ;;
3916             -f*-*|-W*|-mimpure-text)                      ;;
3917             -shared)              echo -G                 ;;
3918             *)                    echo $flag              ;;
3919         esac
3920     done
3921 }
3922
3923 tms470_flags(){
3924     for flag; do
3925         case $flag in
3926             -march=*|-mcpu=*)
3927                 case "${flag#*=}" in
3928                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3929                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3930                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3931                     armv6*|arm11*)          echo -mv=6   ;;
3932                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3933                                             echo -mv=5e  ;;
3934                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3935                 esac
3936                 ;;
3937             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3938             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3939             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3940             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3941             -msoft-float)   echo --float_support=vfplib       ;;
3942             -O[0-3]|-mf=*)  echo $flag                        ;;
3943             -g)             echo -g -mn                       ;;
3944             -pds=*)         echo $flag                        ;;
3945             -D*|-I*)        echo $flag                        ;;
3946             --gcc|--abi=*)  echo $flag                        ;;
3947             -me)            echo $flag                        ;;
3948         esac
3949     done
3950 }
3951
3952 probe_cc(){
3953     pfx=$1
3954     _cc=$2
3955     first=$3
3956
3957     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3958     unset _ld_o _ldflags _ld_lib _ld_path
3959     unset _depflags _DEPCMD _DEPFLAGS
3960     _flags_filter=echo
3961
3962     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3963         true # no-op to avoid reading stdin in following checks
3964     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3965         _type=llvm_gcc
3966         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3967         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3968         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3969         _cflags_speed='-O3'
3970         _cflags_size='-Os'
3971     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3972         _type=gcc
3973         gcc_version=$($_cc --version | head -n1)
3974         gcc_basever=$($_cc -dumpversion)
3975         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3976         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3977         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3978         case $gcc_basever in
3979             2) ;;
3980             2.*) ;;
3981             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3982         esac
3983         if [ "$first" = true ]; then
3984             case $gcc_basever in
3985                 4.2*)
3986                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3987             esac
3988         fi
3989         _cflags_speed='-O3'
3990         _cflags_size='-Os'
3991     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3992         _type=icc
3993         _ident=$($_cc --version | head -n1)
3994         _depflags='-MMD'
3995         _cflags_speed='-O3'
3996         _cflags_size='-Os'
3997         _cflags_noopt='-O1'
3998         _flags_filter=icc_flags
3999     elif $_cc -v 2>&1 | grep -q xlc; then
4000         _type=xlc
4001         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4002         _cflags_speed='-O5'
4003         _cflags_size='-O5 -qcompact'
4004     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4005         _type=ccc
4006         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4007         _DEPFLAGS='-M'
4008         _cflags_speed='-fast'
4009         _cflags_size='-O1'
4010         _flags_filter=ccc_flags
4011     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4012         test -d "$sysroot" || die "No valid sysroot specified."
4013         _type=armcc
4014         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4015         armcc_conf="$PWD/armcc.conf"
4016         $_cc --arm_linux_configure                 \
4017              --arm_linux_config_file="$armcc_conf" \
4018              --configure_sysroot="$sysroot"        \
4019              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4020              die "Error creating armcc configuration file."
4021         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4022         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4023         as_default="${cross_prefix}gcc"
4024         _depflags='-MMD'
4025         _cflags_speed='-O3'
4026         _cflags_size='-Os'
4027     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4028         _type=tms470
4029         _ident=$($_cc -version | head -n1 | tr -s ' ')
4030         _flags='--gcc --abi=eabi -me'
4031         _cc_e='-ppl -fe=$@'
4032         _cc_o='-fe=$@'
4033         _depflags='-ppa -ppd=$(@:.o=.d)'
4034         _cflags_speed='-O3 -mf=5'
4035         _cflags_size='-O3 -mf=2'
4036         _flags_filter=tms470_flags
4037     elif $_cc -v 2>&1 | grep -q clang; then
4038         _type=clang
4039         _ident=$($_cc --version 2>/dev/null | head -n1)
4040         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4041         _cflags_speed='-O3'
4042         _cflags_size='-Oz'
4043     elif $_cc -V 2>&1 | grep -q Sun; then
4044         _type=suncc
4045         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4046         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4047         _DEPFLAGS='-xM1 -xc99'
4048         _ldflags='-std=c99'
4049         _cflags_speed='-O5'
4050         _cflags_size='-O5 -xspace'
4051         _flags_filter=suncc_flags
4052     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4053         _type=pathscale
4054         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4055         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4056         _cflags_speed='-O2'
4057         _cflags_size='-Os'
4058         _flags_filter='filter_out -Wdisabled-optimization'
4059     elif $_cc -v 2>&1 | grep -q Open64; then
4060         _type=open64
4061         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4062         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4063         _cflags_speed='-O2'
4064         _cflags_size='-Os'
4065         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4066     elif $_cc -V 2>&1 | grep -q Portland; then
4067         _type=pgi
4068         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4069         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4070         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4071         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4072         _cflags_noopt="-O"
4073         _flags_filter=pgi_flags
4074     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4075         _type=armasm
4076         _ident=$($_cc | head -n1)
4077         # 4509: "This form of conditional instruction is deprecated"
4078         _flags="-nologo -ignore 4509"
4079         _flags_filter=armasm_flags
4080     elif $_cc 2>&1 | grep -q Intel; then
4081         _type=icl
4082         _ident=$($_cc 2>&1 | head -n1)
4083         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4084         # Not only is O3 broken on 13.x+ but it is slower on all previous
4085         # versions (tested) as well.
4086         _cflags_speed="-O2"
4087         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4088         if $_cc 2>&1 | grep -q Linker; then
4089             _ld_o='-out:$@'
4090         else
4091             _ld_o='-Fe$@'
4092         fi
4093         _cc_o='-Fo$@'
4094         _cc_e='-P'
4095         _flags_filter=icl_flags
4096         _ld_lib='lib%.a'
4097         _ld_path='-libpath:'
4098         # -Qdiag-error to make icl error when seeing certain unknown arguments
4099         _flags='-nologo -Qdiag-error:4044,10157'
4100         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4101         # with MSVC which enables it by default.
4102         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4103         disable stripping
4104     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4105         # lld can emulate multiple different linkers; in ms link.exe mode,
4106         # the -? parameter gives the help output which contains an identifyable
4107         # string, while it gives an error in other modes.
4108         _type=lld-link
4109         # The link.exe mode doesn't have a switch for getting the version,
4110         # but we can force it back to gnu mode and get the version from there.
4111         _ident=$($_cc -flavor gnu --version)
4112         _ld_o='-out:$@'
4113         _flags_filter=msvc_flags
4114         _ld_lib='lib%.a'
4115         _ld_path='-libpath:'
4116     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4117         _type=msvc
4118         _ident=$($_cc 2>&1 | head -n1)
4119         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4120         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4121         _cflags_speed="-O2"
4122         _cflags_size="-O1"
4123         if $_cc -nologo- 2>&1 | grep -q Linker; then
4124             _ld_o='-out:$@'
4125         else
4126             _ld_o='-Fe$@'
4127         fi
4128         _cc_o='-Fo$@'
4129         _cc_e='-P -Fi$@'
4130         _flags_filter=msvc_flags
4131         _ld_lib='lib%.a'
4132         _ld_path='-libpath:'
4133         _flags='-nologo'
4134         disable stripping
4135     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4136         _type=cparser
4137         _ident=$($_cc --version | head -n1)
4138         _depflags='-MMD'
4139         _cflags_speed='-O4'
4140         _cflags_size='-O2'
4141         _flags_filter=cparser_flags
4142     fi
4143
4144     eval ${pfx}_type=\$_type
4145     eval ${pfx}_ident=\$_ident
4146 }
4147
4148 set_ccvars(){
4149     eval ${1}_C=\${_cc_c-\${${1}_C}}
4150     eval ${1}_E=\${_cc_e-\${${1}_E}}
4151     eval ${1}_O=\${_cc_o-\${${1}_O}}
4152
4153     if [ -n "$_depflags" ]; then
4154         eval ${1}_DEPFLAGS=\$_depflags
4155     else
4156         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4157         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4158         eval DEP${1}FLAGS=\$_flags
4159     fi
4160 }
4161
4162 probe_cc cc "$cc" "true"
4163 cflags_filter=$_flags_filter
4164 cflags_speed=$_cflags_speed
4165 cflags_size=$_cflags_size
4166 cflags_noopt=$_cflags_noopt
4167 add_cflags $_flags $_cflags
4168 cc_ldflags=$_ldflags
4169 set_ccvars CC
4170
4171 probe_cc hostcc "$host_cc"
4172 host_cflags_filter=$_flags_filter
4173 add_host_cflags  $_flags $_cflags
4174 set_ccvars HOSTCC
4175
4176 test -n "$cc_type" && enable $cc_type ||
4177     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4178
4179 : ${as_default:=$cc}
4180 : ${objcc_default:=$cc}
4181 : ${dep_cc_default:=$cc}
4182 : ${ld_default:=$cc}
4183 : ${host_ld_default:=$host_cc}
4184 set_default ar as objcc dep_cc ld ln_s host_ld windres
4185
4186 probe_cc as "$as"
4187 asflags_filter=$_flags_filter
4188 add_asflags $_flags $_cflags
4189 set_ccvars AS
4190
4191 probe_cc objcc "$objcc"
4192 objcflags_filter=$_flags_filter
4193 add_objcflags $_flags $_cflags
4194 set_ccvars OBJC
4195
4196 probe_cc ld "$ld"
4197 ldflags_filter=$_flags_filter
4198 add_ldflags $_flags $_ldflags
4199 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4200 LD_O=${_ld_o-$LD_O}
4201 LD_LIB=${_ld_lib-$LD_LIB}
4202 LD_PATH=${_ld_path-$LD_PATH}
4203
4204 probe_cc hostld "$host_ld"
4205 host_ldflags_filter=$_flags_filter
4206 add_host_ldflags $_flags $_ldflags
4207 HOSTLD_O=${_ld_o-$HOSTLD_O}
4208
4209 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4210     probe_cc depcc "$dep_cc"
4211     CCDEP=${_DEPCMD:-$DEPCMD}
4212     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4213     DEPCCFLAGS=$_flags
4214 fi
4215
4216 if $ar 2>&1 | grep -q Microsoft; then
4217     arflags="-nologo"
4218     ar_o='-out:$@'
4219 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4220     arflags="rq"
4221     ar_o='$@'
4222 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4223     arflags='-Xany -r -c'
4224     ar_o='$@'
4225 elif $ar 2>&1 | grep -q "\[D\] "; then
4226     arflags="rcD"
4227     ar_o='$@'
4228 else
4229     arflags="rc"
4230     ar_o='$@'
4231 fi
4232
4233 add_cflags $extra_cflags
4234 add_cxxflags $extra_cxxflags
4235 add_objcflags $extra_objcflags
4236 add_asflags $extra_cflags
4237
4238 if test -n "$sysroot"; then
4239     case "$cc_type" in
4240         gcc|llvm_gcc|clang)
4241             add_cppflags --sysroot="$sysroot"
4242             add_ldflags --sysroot="$sysroot"
4243 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4244             add_cppflags -isysroot "$sysroot"
4245             add_ldflags -isysroot "$sysroot"
4246         ;;
4247         tms470)
4248             add_cppflags -I"$sysinclude"
4249             add_ldflags  --sysroot="$sysroot"
4250         ;;
4251     esac
4252 fi
4253
4254 if test "$cpu" = host; then
4255     enabled cross_compile &&
4256         die "--cpu=host makes no sense when cross-compiling."
4257
4258     case "$cc_type" in
4259         gcc|llvm_gcc)
4260             check_native(){
4261                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4262                 sed -n "/cc1.*$1=/{
4263                             s/.*$1=\\([^ ]*\\).*/\\1/
4264                             p
4265                             q
4266                         }" $TMPE
4267             }
4268             cpu=$(check_native -march || check_native -mcpu)
4269         ;;
4270         clang)
4271             check_native(){
4272                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4273                 sed -n "/cc1.*-target-cpu /{
4274                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4275                             p
4276                             q
4277                         }" $TMPE
4278             }
4279             cpu=$(check_native -march)
4280         ;;
4281     esac
4282
4283     test "${cpu:-host}" = host &&
4284         die "--cpu=host not supported with compiler $cc"
4285 fi
4286
4287 # Deal with common $arch aliases
4288 case "$arch" in
4289     aarch64|arm64)
4290         arch="aarch64"
4291     ;;
4292     arm*|iPad*|iPhone*)
4293         arch="arm"
4294     ;;
4295     mips*|IP*)
4296         case "$arch" in
4297         *el)
4298             add_cppflags -EL
4299             add_ldflags -EL
4300         ;;
4301         *eb)
4302             add_cppflags -EB
4303             add_ldflags -EB
4304         ;;
4305         esac
4306         arch="mips"
4307     ;;
4308     parisc*|hppa*)
4309         arch="parisc"
4310     ;;
4311     "Power Macintosh"|ppc*|powerpc*)
4312         arch="ppc"
4313     ;;
4314     s390|s390x)
4315         arch="s390"
4316     ;;
4317     sh4|sh)
4318         arch="sh4"
4319     ;;
4320     sun4*|sparc*)
4321         arch="sparc"
4322     ;;
4323     tilegx|tile-gx)
4324         arch="tilegx"
4325     ;;
4326     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4327         arch="x86"
4328     ;;
4329 esac
4330
4331 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4332 enable $arch
4333
4334 # Add processor-specific flags
4335 if enabled aarch64; then
4336
4337     case $cpu in
4338         armv*)
4339             cpuflags="-march=$cpu"
4340         ;;
4341         *)
4342             cpuflags="-mcpu=$cpu"
4343         ;;
4344     esac
4345
4346 elif enabled alpha; then
4347
4348     cpuflags="-mcpu=$cpu"
4349
4350 elif enabled arm; then
4351
4352     check_arm_arch() {
4353         check_cpp_condition stddef.h \
4354             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4355             $cpuflags
4356     }
4357
4358     probe_arm_arch() {
4359         if   check_arm_arch 4;        then echo armv4
4360         elif check_arm_arch 4T;       then echo armv4t
4361         elif check_arm_arch 5;        then echo armv5
4362         elif check_arm_arch 5E;       then echo armv5e
4363         elif check_arm_arch 5T;       then echo armv5t
4364         elif check_arm_arch 5TE;      then echo armv5te
4365         elif check_arm_arch 5TEJ;     then echo armv5te
4366         elif check_arm_arch 6;        then echo armv6
4367         elif check_arm_arch 6J;       then echo armv6j
4368         elif check_arm_arch 6K;       then echo armv6k
4369         elif check_arm_arch 6Z;       then echo armv6z
4370         elif check_arm_arch 6ZK;      then echo armv6zk
4371         elif check_arm_arch 6T2;      then echo armv6t2
4372         elif check_arm_arch 7;        then echo armv7
4373         elif check_arm_arch 7A  7_A;  then echo armv7-a
4374         elif check_arm_arch 7S;       then echo armv7-a
4375         elif check_arm_arch 7R  7_R;  then echo armv7-r
4376         elif check_arm_arch 7M  7_M;  then echo armv7-m
4377         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4378         elif check_arm_arch 8A  8_A;  then echo armv8-a
4379         fi
4380     }
4381
4382     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4383
4384     case $cpu in
4385         armv*)
4386             cpuflags="-march=$cpu"
4387             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4388         ;;
4389         *)
4390             cpuflags="-mcpu=$cpu"
4391             case $cpu in
4392                 cortex-a*)                               subarch=armv7a  ;;
4393                 cortex-r*)                               subarch=armv7r  ;;
4394                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4395                 arm11*)                                  subarch=armv6   ;;
4396                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4397                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4398                 *)                             subarch=$(probe_arm_arch) ;;
4399             esac
4400         ;;
4401     esac
4402
4403     case "$subarch" in
4404         armv5t*)    enable fast_clz                ;;
4405         armv[6-8]*)
4406             enable fast_clz
4407             disabled fast_unaligned || enable fast_unaligned
4408             ;;
4409     esac
4410
4411 elif enabled avr32; then
4412
4413     case $cpu in
4414         ap7[02]0[0-2])
4415             subarch="avr32_ap"
4416             cpuflags="-mpart=$cpu"
4417         ;;
4418         ap)
4419             subarch="avr32_ap"
4420             cpuflags="-march=$cpu"
4421         ;;
4422         uc3[ab]*)
4423             subarch="avr32_uc"
4424             cpuflags="-mcpu=$cpu"
4425         ;;
4426         uc)
4427             subarch="avr32_uc"
4428             cpuflags="-march=$cpu"
4429         ;;
4430     esac
4431
4432 elif enabled bfin; then
4433
4434     cpuflags="-mcpu=$cpu"
4435
4436 elif enabled mips; then
4437
4438     cpuflags="-march=$cpu"
4439
4440     if [ "$cpu" != "generic" ]; then
4441         disable mips32r2
4442         disable mips32r5
4443         disable mips64r2
4444         disable mips32r6
4445         disable mips64r6
4446         disable loongson2
4447         disable loongson3
4448
4449         case $cpu in
4450             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4451                 enable mips32r2
4452                 disable msa
4453             ;;
4454             p5600|i6400|p6600)
4455                 disable mipsdsp
4456                 disable mipsdspr2
4457             ;;
4458             loongson*)
4459                 enable loongson2
4460                 enable loongson3
4461                 enable local_aligned_8 local_aligned_16 local_aligned_32
4462                 enable simd_align_16
4463                 enable fast_64bit
4464                 enable fast_clz
4465                 enable fast_cmov
4466                 enable fast_unaligned
4467                 disable aligned_stack
4468                 disable mipsfpu
4469                 disable mipsdsp
4470                 disable mipsdspr2
4471                 case $cpu in
4472                     loongson3*)
4473                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4474                     ;;
4475                     loongson2e)
4476                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4477                     ;;
4478                     loongson2f)
4479                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4480                     ;;
4481                 esac
4482             ;;
4483             *)
4484                 # Unknown CPU. Disable everything.
4485                 warn "unknown CPU. Disabling all MIPS optimizations."
4486                 disable mipsfpu
4487                 disable mipsdsp
4488                 disable mipsdspr2
4489                 disable msa
4490                 disable mmi
4491             ;;
4492         esac
4493
4494         case $cpu in
4495             24kc)
4496                 disable mipsfpu
4497                 disable mipsdsp
4498                 disable mipsdspr2
4499             ;;
4500             24kf*)
4501                 disable mipsdsp
4502                 disable mipsdspr2
4503             ;;
4504             24kec|34kc|1004kc)
4505                 disable mipsfpu
4506                 disable mipsdspr2
4507             ;;
4508             24kef*|34kf*|1004kf*)
4509                 disable mipsdspr2
4510             ;;
4511             74kc)
4512                 disable mipsfpu
4513             ;;
4514             p5600)
4515                 enable mips32r5
4516                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4517             ;;
4518             i6400)
4519                 enable mips64r6
4520                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4521             ;;
4522             p6600)
4523                 enable mips64r6
4524                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4525             ;;
4526         esac
4527     else
4528         # We do not disable anything. Is up to the user to disable the unwanted features.
4529         warn 'generic cpu selected'
4530     fi
4531
4532 elif enabled ppc; then
4533
4534     disable ldbrx
4535
4536     case $(tolower $cpu) in
4537         601|ppc601|powerpc601)
4538             cpuflags="-mcpu=601"
4539             disable altivec
4540         ;;
4541         603*|ppc603*|powerpc603*)
4542             cpuflags="-mcpu=603"
4543             disable altivec
4544         ;;
4545         604*|ppc604*|powerpc604*)
4546             cpuflags="-mcpu=604"
4547             disable altivec
4548         ;;
4549         g3|75*|ppc75*|powerpc75*)
4550             cpuflags="-mcpu=750"
4551             disable altivec
4552         ;;
4553         g4|745*|ppc745*|powerpc745*)
4554             cpuflags="-mcpu=7450"
4555             disable vsx
4556         ;;
4557         74*|ppc74*|powerpc74*)
4558             cpuflags="-mcpu=7400"
4559             disable vsx
4560         ;;
4561         g5|970|ppc970|powerpc970)
4562             cpuflags="-mcpu=970"
4563             disable vsx
4564         ;;
4565         power[3-6]*)
4566             cpuflags="-mcpu=$cpu"
4567             disable vsx
4568         ;;
4569         power[7-8]*)
4570             cpuflags="-mcpu=$cpu"
4571         ;;
4572         cell)
4573             cpuflags="-mcpu=cell"
4574             enable ldbrx
4575             disable vsx
4576         ;;
4577         e500mc)
4578             cpuflags="-mcpu=e500mc"
4579             disable altivec
4580         ;;
4581         e500v2)
4582             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4583             disable altivec
4584             disable dcbzl
4585         ;;
4586         e500)
4587             cpuflags="-mcpu=8540 -mhard-float"
4588             disable altivec
4589             disable dcbzl
4590         ;;
4591     esac
4592
4593 elif enabled sparc; then
4594
4595     case $cpu in
4596         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4597             cpuflags="-mcpu=$cpu"
4598         ;;
4599         ultrasparc*|niagara[234])
4600             cpuflags="-mcpu=$cpu"
4601         ;;
4602     esac
4603
4604 elif enabled x86; then
4605
4606     case $cpu in
4607         i[345]86|pentium)
4608             cpuflags="-march=$cpu"
4609             disable i686
4610             disable mmx
4611         ;;
4612         # targets that do NOT support nopl and conditional mov (cmov)
4613         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4614             cpuflags="-march=$cpu"
4615             disable i686
4616         ;;
4617         # targets that do support nopl and conditional mov (cmov)
4618         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4619         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4620         |amdfam10|barcelona|b[dt]ver*|znver*)
4621             cpuflags="-march=$cpu"
4622             enable i686
4623             enable fast_cmov
4624         ;;
4625         # targets that do support conditional mov but on which it's slow
4626         pentium4|pentium4m|prescott|nocona)
4627             cpuflags="-march=$cpu"
4628             enable i686
4629             disable fast_cmov
4630         ;;
4631     esac
4632
4633 fi
4634
4635 if [ "$cpu" != generic ]; then
4636     add_cflags  $cpuflags
4637     add_asflags $cpuflags
4638     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4639 fi
4640
4641 # compiler sanity check
4642 check_exec <<EOF
4643 int main(void){ return 0; }
4644 EOF
4645 if test "$?" != 0; then
4646     echo "$cc is unable to create an executable file."
4647     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4648         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4649         echo "Only do this if you know what cross compiling means."
4650     fi
4651     die "C compiler test failed."
4652 fi
4653
4654 add_cppflags -D_ISOC99_SOURCE
4655 add_cxxflags -D__STDC_CONSTANT_MACROS
4656 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4657
4658 # some compilers silently accept -std=c11, so we also need to check that the
4659 # version macro is defined properly
4660 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4661     add_cflags -std=c11
4662 else
4663     check_cflags -std=c99
4664 fi
4665
4666 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4667 #include <stdlib.h>
4668 EOF
4669 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4670 #include <stdlib.h>
4671 EOF
4672
4673 add_host_cppflags -D_ISOC99_SOURCE
4674 check_host_cflags -std=c99
4675 check_host_cflags -Wall
4676 check_host_cflags -O3
4677
4678 check_64bit(){
4679     arch32=$1
4680     arch64=$2
4681     expr=$3
4682     check_code cc "" "int test[2*($expr) - 1]" &&
4683         subarch=$arch64 || subarch=$arch32
4684 }
4685
4686 case "$arch" in
4687     aarch64|alpha|ia64)
4688         spic=$shared
4689     ;;
4690     mips)
4691         check_64bit mips mips64 '_MIPS_SIM > 1'
4692         spic=$shared
4693     ;;
4694     parisc)
4695         check_64bit parisc parisc64 'sizeof(void *) > 4'
4696         spic=$shared
4697     ;;
4698     ppc)
4699         check_64bit ppc ppc64 'sizeof(void *) > 4'
4700         spic=$shared
4701     ;;
4702     s390)
4703         check_64bit s390 s390x 'sizeof(void *) > 4'
4704         spic=$shared
4705     ;;
4706     sparc)
4707         check_64bit sparc sparc64 'sizeof(void *) > 4'
4708         spic=$shared
4709     ;;
4710     x86)
4711         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4712         # Treat x32 as x64 for now. Note it also needs spic=$shared
4713         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4714             subarch=x86_64
4715         if test "$subarch" = "x86_64"; then
4716             spic=$shared
4717         fi
4718     ;;
4719     ppc)
4720         check_cc <<EOF && subarch="ppc64"
4721         int test[(int)sizeof(char*) - 7];
4722 EOF
4723     ;;
4724 esac
4725
4726 enable $subarch
4727 enabled spic && enable_weak pic
4728
4729 # OS specific
4730 case $target_os in
4731     aix)
4732         SHFLAGS=-shared
4733         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4734         enabled shared && add_ldflags -Wl,-brtl
4735         ;;
4736     android)
4737         disable symver
4738         enable section_data_rel_ro
4739         SLIB_INSTALL_NAME='$(SLIBNAME)'
4740         SLIB_INSTALL_LINKS=
4741         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4742         ;;
4743     haiku)
4744         prefix_default="/boot/common"
4745         network_extralibs="-lnetwork"
4746         host_libs=
4747         ;;
4748     sunos)
4749         SHFLAGS='-shared -Wl,-h,$$(@F)'
4750         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4751         network_extralibs="-lsocket -lnsl"
4752         add_cppflags -D__EXTENSIONS__
4753         # When using suncc to build, the Solaris linker will mark
4754         # an executable with each instruction set encountered by
4755         # the Solaris assembler.  As our libraries contain their own
4756         # guards for processor-specific code, instead suppress
4757         # generation of the HWCAPS ELF section on Solaris x86 only.
4758         enabled_all suncc x86 &&
4759             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4760             add_ldflags -Wl,-M,mapfile
4761         nm_default='nm -P -g'
4762         version_script='-M'
4763         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4764         ;;
4765     netbsd)
4766         disable symver
4767         oss_indev_extralibs="-lossaudio"
4768         oss_outdev_extralibs="-lossaudio"
4769         enabled gcc || check_ldflags -Wl,-zmuldefs
4770         ;;
4771     openbsd|bitrig)
4772         disable symver
4773         SHFLAGS='-shared'
4774         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4775         SLIB_INSTALL_LINKS=
4776         oss_indev_extralibs="-lossaudio"
4777         oss_outdev_extralibs="-lossaudio"
4778         ;;
4779     dragonfly)
4780         disable symver
4781         ;;
4782     freebsd)
4783         ;;
4784     bsd/os)
4785         add_extralibs -lpoll -lgnugetopt
4786         strip="strip -d"
4787         ;;
4788     darwin)
4789         enabled ppc && add_asflags -force_cpusubtype_ALL
4790         install_name_dir_default='$(SHLIBDIR)'
4791         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4792         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4793         strip="${strip} -x"
4794         add_ldflags -Wl,-dynamic,-search_paths_first
4795         SLIBSUF=".dylib"
4796         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4797         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4798         objformat="macho"
4799         enabled x86_64 && objformat="macho64"
4800         enabled_any pic shared x86_64 ||
4801             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4802         check_header dispatch/dispatch.h &&
4803             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4804         version_script='-exported_symbols_list'
4805         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4806         ;;
4807     msys*)
4808         die "Native MSYS builds are discouraged, please use the MINGW environment."
4809         ;;
4810     mingw32*|mingw64*)
4811         if test $target_os = "mingw32ce"; then
4812             disable network
4813         else
4814             target_os=mingw32
4815         fi
4816         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4817         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4818         LIBTARGET=i386
4819         if enabled x86_64; then
4820             LIBTARGET="i386:x86-64"
4821         elif enabled arm; then
4822             LIBTARGET=arm-wince
4823         fi
4824         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4825         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4826         shlibdir_default="$bindir_default"
4827         SLIBPREF=""
4828         SLIBSUF=".dll"
4829         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4830         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4831         dlltool="${cross_prefix}dlltool"
4832         if check_cmd lib.exe -list; then
4833             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4834             if enabled x86_64; then
4835                 LIBTARGET=x64
4836             fi
4837         elif check_cmd $dlltool --version; then
4838             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4839         fi
4840         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4841         SLIB_INSTALL_LINKS=
4842         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4843         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4844         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4845         objformat="win32"
4846         ranlib=:
4847         enable dos_paths
4848         check_ldflags -Wl,--nxcompat,--dynamicbase
4849         # Lets work around some stupidity in binutils.
4850         # ld will strip relocations from executables even though we need them
4851         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4852         # however ld then forgets what the entry point should be (oops) so we
4853         # have to manually (re)set it.
4854         if enabled x86_32; then
4855             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4856         elif enabled x86_64; then
4857             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4858             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4859             # Set image base >4GB for extra entropy with HEASLR
4860             add_ldexeflags -Wl,--image-base,0x140000000
4861             append SHFLAGS -Wl,--image-base,0x180000000
4862         fi
4863         ;;
4864     win32|win64)
4865         disable symver
4866         if enabled shared; then
4867             # Link to the import library instead of the normal static library
4868             # for shared libs.
4869             LD_LIB='%.lib'
4870             # Cannot build both shared and static libs with MSVC or icl.
4871             disable static
4872         fi
4873         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4874         shlibdir_default="$bindir_default"
4875         SLIBPREF=""
4876         SLIBSUF=".dll"
4877         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4878         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4879         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4880         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4881         SLIB_INSTALL_LINKS=
4882         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4883         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4884         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4885         objformat="win32"
4886         ranlib=:
4887         enable dos_paths
4888         ;;
4889     cygwin*)
4890         target_os=cygwin
4891         shlibdir_default="$bindir_default"
4892         SLIBPREF="cyg"
4893         SLIBSUF=".dll"
4894         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
48