lavu/libm: add exp10 support
[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
95 Licensing options:
96   --enable-gpl             allow use of GPL code, the resulting libs
97                            and binaries will be under GPL [no]
98   --enable-version3        upgrade (L)GPL to version 3 [no]
99   --enable-nonfree         allow use of nonfree code, the resulting libs
100                            and binaries will be unredistributable [no]
101
102 Configuration options:
103   --disable-static         do not build static libraries [no]
104   --enable-shared          build shared libraries [no]
105   --enable-small           optimize for size instead of speed
106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
107   --enable-gray            enable full grayscale support (slower color)
108   --disable-swscale-alpha  disable alpha channel support in swscale
109   --disable-all            disable building components, libraries and programs
110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
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 Hardware accelerators:
152   --disable-d3d11va        disable D3D11VA code [autodetect]
153   --disable-dxva2          disable DXVA2 code [autodetect]
154   --disable-vaapi          disable VAAPI code [autodetect]
155   --disable-vda            disable VDA code [autodetect]
156   --disable-vdpau          disable VDPAU code [autodetect]
157   --enable-videotoolbox    enable VideoToolbox code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
201   --enable-frei0r          enable frei0r video filtering [no]
202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
203                            if openssl, librtmp or gmp is not used [no]
204   --enable-gmp             enable gmp, needed for rtmp(t)e support
205                            if openssl or librtmp is not used [no]
206   --enable-gnutls          enable gnutls, needed for https support
207                            if openssl is not used [no]
208   --disable-iconv          disable iconv [autodetect]
209   --enable-ladspa          enable LADSPA audio filtering [no]
210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
211   --enable-libass          enable libass subtitles rendering,
212                            needed for subtitles and ass filter [no]
213   --enable-libbluray       enable BluRay reading using libbluray [no]
214   --enable-libbs2b         enable bs2b DSP library [no]
215   --enable-libcaca         enable textual display using libcaca [no]
216   --enable-libcelt         enable CELT decoding via libcelt [no]
217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
219                            and libraw1394 [no]
220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
221   --enable-libfaac         enable AAC encoding via libfaac [no]
222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
226   --enable-libgme          enable Game Music Emu via libgme [no]
227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
231   --enable-libmfx          enable HW acceleration through libmfx
232   --enable-libmodplug      enable ModPlug via libmodplug [no]
233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
234   --enable-libnut          enable NUT (de)muxing via libnut,
235                            native (de)muxer exists [no]
236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
238   --enable-libopencv       enable video filtering via libopencv [no]
239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
241   --enable-libopus         enable Opus de/encoding via libopus [no]
242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
244   --enable-libquvi         enable quvi input via libquvi [no]
245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
250   --enable-libsoxr         enable Include libsoxr resampling [no]
251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
252   --enable-libssh          enable SFTP protocol via libssh [no]
253   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [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-mmal            enable decoding via MMAL [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-nvenc           enable NVIDIA NVENC support [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl            disable sdl [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --enable-x11grab         enable X11 grabbing (legacy) [no]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298 Toolchain options:
299   --arch=ARCH              select architecture [$arch]
300   --cpu=CPU                select the minimum required CPU (affects
301                            instruction selection, may crash on older CPUs)
302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
303   --progs-suffix=SUFFIX    program name suffix []
304   --enable-cross-compile   assume a cross-compiler is used
305   --sysroot=PATH           root of cross-build tree
306   --sysinclude=PATH        location of cross-build system headers
307   --target-os=OS           compiler targets OS [$target_os]
308   --target-exec=CMD        command to run executables on target
309   --target-path=DIR        path to view of build directory on target
310   --target-samples=DIR     path to samples directory on target
311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
312   --toolchain=NAME         set tool defaults according to NAME
313   --nm=NM                  use nm tool NM [$nm_default]
314   --ar=AR                  use archive tool AR [$ar_default]
315   --as=AS                  use assembler AS [$as_default]
316   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
317   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
318   --cc=CC                  use C compiler CC [$cc_default]
319   --cxx=CXX                use C compiler CXX [$cxx_default]
320   --objcc=OCC              use ObjC compiler OCC [$cc_default]
321   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
322   --ld=LD                  use linker LD [$ld_default]
323   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
324   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
325   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
326   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
327   --host-cc=HOSTCC         use host C compiler HOSTCC
328   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
329   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
330   --host-ld=HOSTLD         use host linker HOSTLD
331   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
332   --host-libs=HLIBS        use libs HLIBS when linking for host
333   --host-os=OS             compiler host OS [$target_os]
334   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
335   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
336   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
337   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
338   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
339   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
340   --extra-libs=ELIBS       add ELIBS [$ELIBS]
341   --extra-version=STRING   version string suffix []
342   --optflags=OPTFLAGS      override optimization-related compiler flags
343   --build-suffix=SUFFIX    library name suffix []
344   --enable-pic             build position-independent code
345   --enable-thumb           compile for Thumb instruction set
346   --enable-lto             use link-time optimization
347   --env="ENV=override"     override the environment variables
348
349 Advanced options (experts only):
350   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
351   --custom-allocator=NAME  use a supported custom allocator
352   --disable-symver         disable symbol versioning
353   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
354   --disable-safe-bitstream-reader
355                            disable buffer boundary checking in bitreaders
356                            (faster, but may crash)
357   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
358   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
359
360 Optimization options (experts only):
361   --disable-asm            disable all assembly optimizations
362   --disable-altivec        disable AltiVec optimizations
363   --disable-vsx            disable VSX optimizations
364   --disable-power8         disable POWER8 optimizations
365   --disable-amd3dnow       disable 3DNow! optimizations
366   --disable-amd3dnowext    disable 3DNow! extended optimizations
367   --disable-mmx            disable MMX optimizations
368   --disable-mmxext         disable MMXEXT optimizations
369   --disable-sse            disable SSE optimizations
370   --disable-sse2           disable SSE2 optimizations
371   --disable-sse3           disable SSE3 optimizations
372   --disable-ssse3          disable SSSE3 optimizations
373   --disable-sse4           disable SSE4 optimizations
374   --disable-sse42          disable SSE4.2 optimizations
375   --disable-avx            disable AVX optimizations
376   --disable-xop            disable XOP optimizations
377   --disable-fma3           disable FMA3 optimizations
378   --disable-fma4           disable FMA4 optimizations
379   --disable-avx2           disable AVX2 optimizations
380   --disable-aesni          disable AESNI optimizations
381   --disable-armv5te        disable armv5te optimizations
382   --disable-armv6          disable armv6 optimizations
383   --disable-armv6t2        disable armv6t2 optimizations
384   --disable-vfp            disable VFP optimizations
385   --disable-neon           disable NEON optimizations
386   --disable-inline-asm     disable use of inline assembly
387   --disable-yasm           disable use of nasm/yasm assembly
388   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
389   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
390   --disable-msa            disable MSA optimizations
391   --disable-mipsfpu        disable floating point MIPS optimizations
392   --disable-mmi            disable Loongson SIMD optimizations
393   --disable-fast-unaligned consider unaligned accesses slow
394
395 Developer options (useful when working on FFmpeg itself):
396   --disable-debug          disable debugging symbols
397   --enable-debug=LEVEL     set the debug level [$debuglevel]
398   --disable-optimizations  disable compiler optimizations
399   --enable-extra-warnings  enable more compiler warnings
400   --disable-stripping      disable stripping of executables and shared libraries
401   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
402                            2 causes a slowdown at runtime.
403   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
404   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
405                            leaks and errors, using the specified valgrind binary.
406                            Cannot be combined with --target-exec
407   --enable-ftrapv          Trap arithmetic overflows
408   --samples=PATH           location of test samples for FATE, if not set use
409                            \$FATE_SAMPLES at make invocation time.
410   --enable-neon-clobber-test check NEON registers for clobbering (should be
411                            used only for debugging purposes)
412   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
413                            should be used only for debugging purposes)
414   --enable-random          randomly enable/disable components
415   --disable-random
416   --enable-random=LIST     randomly enable/disable specific components or
417   --disable-random=LIST    component groups. LIST is a comma-separated list
418                            of NAME[:PROB] entries where NAME is a component
419                            (group) and PROB the probability associated with
420                            NAME (default 0.5).
421   --random-seed=VALUE      seed value for --enable/disable-random
422   --disable-valgrind-backtrace do not print a backtrace under Valgrind
423                            (only applies to --disable-optimizations builds)
424
425 NOTE: Object files are built at the place where configure is launched.
426 EOF
427   exit 0
428 }
429
430 quotes='""'
431 if test -t 1 && which tput >/dev/null 2>&1; then
432     ncolors=$(tput colors)
433     if test -n "$ncolors" && test $ncolors -ge 8; then
434         bold_color=$(tput bold)
435         warn_color=$(tput setaf 3)
436         error_color=$(tput setaf 1)
437         reset_color=$(tput sgr0)
438     fi
439     # 72 used instead of 80 since that's the default of pr
440     ncols=$(tput cols)
441 fi
442 : ${ncols:=72}
443
444 log(){
445     echo "$@" >> $logfile
446 }
447
448 log_file(){
449     log BEGIN $1
450     pr -n -t $1 >> $logfile
451     log END $1
452 }
453
454 warn(){
455     log "WARNING: $*"
456     WARNINGS="${WARNINGS}WARNING: $*\n"
457 }
458
459 die(){
460     log "$@"
461     echo "$error_color$bold_color$@$reset_color"
462     cat <<EOF
463
464 If you think configure made a mistake, make sure you are using the latest
465 version from Git.  If the latest version fails, report the problem to the
466 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
467 EOF
468     if disabled logging; then
469         cat <<EOF
470 Rerun configure with logging enabled (do not use --disable-logging), and
471 include the log this produces with your report.
472 EOF
473     else
474         cat <<EOF
475 Include the log file "$logfile" produced by configure as this will help
476 solve the problem.
477 EOF
478     fi
479     exit 1
480 }
481
482 # Avoid locale weirdness, besides we really just want to translate ASCII.
483 toupper(){
484     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
485 }
486
487 tolower(){
488     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
489 }
490
491 c_escape(){
492     echo "$*" | sed 's/["\\]/\\\0/g'
493 }
494
495 sh_quote(){
496     v=$(echo "$1" | sed "s/'/'\\\\''/g")
497     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
498     echo "$v"
499 }
500
501 cleanws(){
502     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
503 }
504
505 filter(){
506     pat=$1
507     shift
508     for v; do
509         eval "case $v in $pat) echo $v ;; esac"
510     done
511 }
512
513 filter_out(){
514     pat=$1
515     shift
516     for v; do
517         eval "case $v in $pat) ;; *) echo $v ;; esac"
518     done
519 }
520
521 map(){
522     m=$1
523     shift
524     for v; do eval $m; done
525 }
526
527 add_suffix(){
528     suffix=$1
529     shift
530     for v; do echo ${v}${suffix}; done
531 }
532
533 set_all(){
534     value=$1
535     shift
536     for var in $*; do
537         eval $var=$value
538     done
539 }
540
541 set_weak(){
542     value=$1
543     shift
544     for var; do
545         eval : \${$var:=$value}
546     done
547 }
548
549 sanitize_var_name(){
550     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
551 }
552
553 set_safe(){
554     var=$1
555     shift
556     eval $(sanitize_var_name "$var")='$*'
557 }
558
559 get_safe(){
560     eval echo \$$(sanitize_var_name "$1")
561 }
562
563 pushvar(){
564     for pvar in $*; do
565         eval level=\${${pvar}_level:=0}
566         eval ${pvar}_${level}="\$$pvar"
567         eval ${pvar}_level=$(($level+1))
568     done
569 }
570
571 popvar(){
572     for pvar in $*; do
573         eval level=\${${pvar}_level:-0}
574         test $level = 0 && continue
575         eval level=$(($level-1))
576         eval $pvar="\${${pvar}_${level}}"
577         eval ${pvar}_level=$level
578         eval unset ${pvar}_${level}
579     done
580 }
581
582 enable(){
583     set_all yes $*
584 }
585
586 disable(){
587     set_all no $*
588 }
589
590 enable_weak(){
591     set_weak yes $*
592 }
593
594 disable_weak(){
595     set_weak no $*
596 }
597
598 enable_safe(){
599     for var; do
600         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
601     done
602 }
603
604 disable_safe(){
605     for var; do
606         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
607     done
608 }
609
610 do_enable_deep(){
611     for var; do
612         enabled $var && continue
613         eval sel="\$${var}_select"
614         eval sgs="\$${var}_suggest"
615         pushvar var sgs
616         enable_deep $sel
617         popvar sgs
618         enable_deep_weak $sgs
619         popvar var
620     done
621 }
622
623 enable_deep(){
624     do_enable_deep $*
625     enable $*
626 }
627
628 enable_deep_weak(){
629     for var; do
630         disabled $var && continue
631         pushvar var
632         do_enable_deep $var
633         popvar var
634         enable_weak $var
635     done
636 }
637
638 enabled(){
639     test "${1#!}" = "$1" && op='=' || op=!=
640     eval test "x\$${1#!}" $op "xyes"
641 }
642
643 disabled(){
644     test "${1#!}" = "$1" && op='=' || op=!=
645     eval test "x\$${1#!}" $op "xno"
646 }
647
648 enabled_all(){
649     for opt; do
650         enabled $opt || return 1
651     done
652 }
653
654 disabled_all(){
655     for opt; do
656         disabled $opt || return 1
657     done
658 }
659
660 enabled_any(){
661     for opt; do
662         enabled $opt && return 0
663     done
664 }
665
666 disabled_any(){
667     for opt; do
668         disabled $opt && return 0
669     done
670     return 1
671 }
672
673 set_default(){
674     for opt; do
675         eval : \${$opt:=\$${opt}_default}
676     done
677 }
678
679 is_in(){
680     value=$1
681     shift
682     for var in $*; do
683         [ $var = $value ] && return 0
684     done
685     return 1
686 }
687
688 do_check_deps(){
689     for cfg; do
690         cfg="${cfg#!}"
691         enabled ${cfg}_checking && die "Circular dependency for $cfg."
692         disabled ${cfg}_checking && continue
693         enable ${cfg}_checking
694         append allopts $cfg
695
696         eval dep_all="\$${cfg}_deps"
697         eval dep_any="\$${cfg}_deps_any"
698         eval dep_sel="\$${cfg}_select"
699         eval dep_sgs="\$${cfg}_suggest"
700         eval dep_ifa="\$${cfg}_if"
701         eval dep_ifn="\$${cfg}_if_any"
702
703         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
704         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
705         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706
707         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
708         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
709         enabled_all  $dep_all || disable $cfg
710         enabled_any  $dep_any || disable $cfg
711         disabled_any $dep_sel && disable $cfg
712
713         if enabled $cfg; then
714             enable_deep $dep_sel
715             enable_deep_weak $dep_sgs
716         fi
717
718         disable ${cfg}_checking
719     done
720 }
721
722 check_deps(){
723     unset allopts
724
725     do_check_deps "$@"
726
727     for cfg in $allopts; do
728         enabled $cfg || continue
729         eval dep_extralibs="\$${cfg}_extralibs"
730         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
731     done
732 }
733
734 print_config(){
735     pfx=$1
736     files=$2
737     shift 2
738     map 'eval echo "$v \${$v:-no}"' "$@" |
739     awk "BEGIN { split(\"$files\", files) }
740         {
741             c = \"$pfx\" toupper(\$1);
742             v = \$2;
743             sub(/yes/, 1, v);
744             sub(/no/,  0, v);
745             for (f in files) {
746                 file = files[f];
747                 if (file ~ /\\.h\$/) {
748                     printf(\"#define %s %d\\n\", c, v) >>file;
749                 } else if (file ~ /\\.asm\$/) {
750                     printf(\"%%define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.mak\$/) {
752                     n = -v ? \"\" : \"!\";
753                     printf(\"%s%s=yes\\n\", n, c) >>file;
754                 } else if (file ~ /\\.texi\$/) {
755                     pre = -v ? \"\" : \"@c \";
756                     yesno = \$2;
757                     c2 = tolower(c);
758                     gsub(/_/, \"-\", c2);
759                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
760                 }
761             }
762         }"
763 }
764
765 print_enabled(){
766     suf=$1
767     shift
768     for v; do
769         enabled $v && printf "%s\n" ${v%$suf};
770     done
771 }
772
773 append(){
774     var=$1
775     shift
776     eval "$var=\"\$$var $*\""
777 }
778
779 prepend(){
780     var=$1
781     shift
782     eval "$var=\"$* \$$var\""
783 }
784
785 unique(){
786     var=$1
787     uniq_list=""
788     for tok in $(eval echo \$$var); do
789         uniq_list="$(filter_out $tok $uniq_list) $tok"
790     done
791     eval "$var=\"${uniq_list}\""
792 }
793
794 add_cppflags(){
795     append CPPFLAGS "$@"
796 }
797
798 add_cflags(){
799     append CFLAGS $($cflags_filter "$@")
800 }
801
802 add_cxxflags(){
803     append CXXFLAGS $($cflags_filter "$@")
804 }
805
806 add_asflags(){
807     append ASFLAGS $($asflags_filter "$@")
808 }
809
810 add_objcflags(){
811     append OBJCFLAGS $($objcflags_filter "$@")
812 }
813
814 add_ldflags(){
815     append LDFLAGS $($ldflags_filter "$@")
816 }
817
818 add_ldexeflags(){
819     append LDEXEFLAGS $($ldflags_filter "$@")
820 }
821
822 add_ldlibflags(){
823     append LDLIBFLAGS $($ldflags_filter "$@")
824 }
825
826 add_stripflags(){
827     append ASMSTRIPFLAGS "$@"
828 }
829
830 add_extralibs(){
831     prepend extralibs $($ldflags_filter "$@")
832 }
833
834 add_host_cppflags(){
835     append host_cppflags "$@"
836 }
837
838 add_host_cflags(){
839     append host_cflags $($host_cflags_filter "$@")
840 }
841
842 add_host_ldflags(){
843     append host_ldflags $($host_ldflags_filter "$@")
844 }
845
846 add_compat(){
847     append compat_objs $1
848     shift
849     map 'add_cppflags -D$v' "$@"
850 }
851
852 check_cmd(){
853     log "$@"
854     "$@" >> $logfile 2>&1
855 }
856
857 check_stat(){
858     log check_stat "$@"
859     stat "$1" >> $logfile 2>&1
860 }
861
862 cc_o(){
863     eval printf '%s\\n' $CC_O
864 }
865
866 cc_e(){
867     eval printf '%s\\n' $CC_E
868 }
869
870 check_cc(){
871     log check_cc "$@"
872     cat > $TMPC
873     log_file $TMPC
874     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
875 }
876
877 check_cxx(){
878     log check_cxx "$@"
879     cat > $TMPCPP
880     log_file $TMPCPP
881     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
882 }
883
884 check_objcc(){
885     log check_objcc "$@"
886     cat > $TMPM
887     log_file $TMPM
888     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
889 }
890
891 check_cpp(){
892     log check_cpp "$@"
893     cat > $TMPC
894     log_file $TMPC
895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
896 }
897
898 as_o(){
899     eval printf '%s\\n' $AS_O
900 }
901
902 check_as(){
903     log check_as "$@"
904     cat > $TMPS
905     log_file $TMPS
906     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
907 }
908
909 check_inline_asm(){
910     log check_inline_asm "$@"
911     name="$1"
912     code="$2"
913     shift 2
914     disable $name
915     check_cc "$@" <<EOF && enable $name
916 void foo(void){ __asm__ volatile($code); }
917 EOF
918 }
919
920 check_insn(){
921     log check_insn "$@"
922     check_inline_asm ${1}_inline "\"$2\""
923     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
924 }
925
926 check_yasm(){
927     log check_yasm "$@"
928     echo "$1" > $TMPS
929     log_file $TMPS
930     shift 1
931     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
932 }
933
934 ld_o(){
935     eval printf '%s\\n' $LD_O
936 }
937
938 check_ld(){
939     log check_ld "$@"
940     type=$1
941     shift 1
942     flags=$(filter_out '-l*|*.so' $@)
943     libs=$(filter '-l*|*.so' $@)
944     check_$type $($cflags_filter $flags) || return
945     flags=$($ldflags_filter $flags)
946     libs=$($ldflags_filter $libs)
947     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
948 }
949
950 print_include(){
951     hdr=$1
952     test "${hdr%.h}" = "${hdr}" &&
953         echo "#include $hdr"    ||
954         echo "#include <$hdr>"
955 }
956
957 check_code(){
958     log check_code "$@"
959     check=$1
960     headers=$2
961     code=$3
962     shift 3
963     {
964         for hdr in $headers; do
965             print_include $hdr
966         done
967         echo "int main(void) { $code; return 0; }"
968     } | check_$check "$@"
969 }
970
971 check_cppflags(){
972     log check_cppflags "$@"
973     check_cc "$@" <<EOF && append CPPFLAGS "$@"
974 int x;
975 EOF
976 }
977
978 test_cflags(){
979     log test_cflags "$@"
980     set -- $($cflags_filter "$@")
981     check_cc "$@" <<EOF
982 int x;
983 EOF
984 }
985
986 check_cflags(){
987     log check_cflags "$@"
988     test_cflags "$@" && add_cflags "$@"
989 }
990
991 check_cxxflags(){
992     log check_cxxflags "$@"
993     set -- $($cflags_filter "$@")
994     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_objcflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_objcc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_objcflags(){
1008     log check_cflags "$@"
1009     test_objcflags "$@" && add_objcflags "$@"
1010 }
1011
1012 test_ldflags(){
1013     log test_ldflags "$@"
1014     check_ld "cc" "$@" <<EOF
1015 int main(void){ return 0; }
1016 EOF
1017 }
1018
1019 check_ldflags(){
1020     log check_ldflags "$@"
1021     test_ldflags "$@" && add_ldflags "$@"
1022 }
1023
1024 test_stripflags(){
1025     log test_stripflags "$@"
1026     # call check_cc to get a fresh TMPO
1027     check_cc <<EOF
1028 int main(void) { return 0; }
1029 EOF
1030     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1031 }
1032
1033 check_stripflags(){
1034     log check_stripflags "$@"
1035     test_stripflags "$@" && add_stripflags "$@"
1036 }
1037
1038 check_header(){
1039     log check_header "$@"
1040     header=$1
1041     shift
1042     disable_safe $header
1043     check_cpp "$@" <<EOF && enable_safe $header
1044 #include <$header>
1045 int x;
1046 EOF
1047 }
1048
1049 check_header_objcc(){
1050     log check_header_objcc "$@"
1051     rm -f -- "$TMPO"
1052     header=$1
1053     shift
1054     disable_safe $header
1055     {
1056        echo "#include <$header>"
1057        echo "int main(void) { return 0; }"
1058     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1059 }
1060
1061 check_func(){
1062     log check_func "$@"
1063     func=$1
1064     shift
1065     disable $func
1066     check_ld "cc" "$@" <<EOF && enable $func
1067 extern int $func();
1068 int main(void){ $func(); }
1069 EOF
1070 }
1071
1072 check_complexfunc(){
1073     log check_complexfunc "$@"
1074     func=$1
1075     narg=$2
1076     shift 2
1077     test $narg = 2 && args="f, g" || args="f * I"
1078     disable $func
1079     check_ld "cc" "$@" <<EOF && enable $func
1080 #include <complex.h>
1081 #include <math.h>
1082 float foo(complex float f, complex float g) { return $func($args); }
1083 int main(void){ return (int) foo; }
1084 EOF
1085 }
1086
1087 check_mathfunc(){
1088     log check_mathfunc "$@"
1089     func=$1
1090     narg=$2
1091     shift 2
1092     test $narg = 2 && args="f, g" || args="f"
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 #include <math.h>
1096 float foo(float f, float g) { return $func($args); }
1097 int main(void){ return (int) foo; }
1098 EOF
1099 }
1100
1101 check_func_headers(){
1102     log check_func_headers "$@"
1103     headers=$1
1104     funcs=$2
1105     shift 2
1106     {
1107         for hdr in $headers; do
1108             print_include $hdr
1109         done
1110         for func in $funcs; do
1111             echo "long check_$func(void) { return (long) $func; }"
1112         done
1113         echo "int main(void) { return 0; }"
1114     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1115 }
1116
1117 check_class_headers_cpp(){
1118     log check_class_headers_cpp "$@"
1119     headers=$1
1120     classes=$2
1121     shift 2
1122     {
1123         for hdr in $headers; do
1124             echo "#include <$hdr>"
1125         done
1126         echo "int main(void) { "
1127         i=1
1128         for class in $classes; do
1129             echo "$class obj$i;"
1130             i=$(expr $i + 1)
1131         done
1132         echo "return 0; }"
1133     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1134 }
1135
1136 check_cpp_condition(){
1137     log check_cpp_condition "$@"
1138     header=$1
1139     condition=$2
1140     shift 2
1141     check_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 check_lib(){
1150     log check_lib "$@"
1151     header="$1"
1152     func="$2"
1153     shift 2
1154     check_header $header && check_func $func "$@" && add_extralibs "$@"
1155 }
1156
1157 check_lib2(){
1158     log check_lib2 "$@"
1159     headers="$1"
1160     funcs="$2"
1161     shift 2
1162     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1163 }
1164
1165 check_lib_cpp(){
1166     log check_lib_cpp "$@"
1167     headers="$1"
1168     classes="$2"
1169     shift 2
1170     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1171 }
1172
1173 check_pkg_config(){
1174     log check_pkg_config "$@"
1175     pkgandversion="$1"
1176     pkg="${1%% *}"
1177     headers="$2"
1178     funcs="$3"
1179     shift 3
1180     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1181     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1182     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1183     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1184         set_safe "${pkg}_cflags" $pkg_cflags   &&
1185         set_safe "${pkg}_libs"   $pkg_libs
1186 }
1187
1188 check_exec(){
1189     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1190 }
1191
1192 check_exec_crash(){
1193     code=$(cat)
1194
1195     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1196     # are safe but may not be available everywhere.  Thus we use
1197     # raise(SIGTERM) instead.  The check is run in a subshell so we
1198     # can redirect the "Terminated" message from the shell.  SIGBUS
1199     # is not defined by standard C so it is used conditionally.
1200
1201     (check_exec "$@") >> $logfile 2>&1 <<EOF
1202 #include <signal.h>
1203 static void sighandler(int sig){
1204     raise(SIGTERM);
1205 }
1206 int foo(void){
1207     $code
1208 }
1209 int (*func_ptr)(void) = foo;
1210 int main(void){
1211     signal(SIGILL, sighandler);
1212     signal(SIGFPE, sighandler);
1213     signal(SIGSEGV, sighandler);
1214 #ifdef SIGBUS
1215     signal(SIGBUS, sighandler);
1216 #endif
1217     return func_ptr();
1218 }
1219 EOF
1220 }
1221
1222 check_type(){
1223     log check_type "$@"
1224     headers=$1
1225     type=$2
1226     shift 2
1227     disable_safe "$type"
1228     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1229 }
1230
1231 check_struct(){
1232     log check_struct "$@"
1233     headers=$1
1234     struct=$2
1235     member=$3
1236     shift 3
1237     disable_safe "${struct}_${member}"
1238     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1239         enable_safe "${struct}_${member}"
1240 }
1241
1242 check_builtin(){
1243     log check_builtin "$@"
1244     name=$1
1245     headers=$2
1246     builtin=$3
1247     shift 3
1248     disable "$name"
1249     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1250 }
1251
1252 check_compile_assert(){
1253     log check_compile_assert "$@"
1254     name=$1
1255     headers=$2
1256     condition=$3
1257     shift 3
1258     disable "$name"
1259     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1260 }
1261
1262 require(){
1263     name="$1"
1264     header="$2"
1265     func="$3"
1266     shift 3
1267     check_lib $header $func "$@" || die "ERROR: $name not found"
1268 }
1269
1270 require2(){
1271     name="$1"
1272     headers="$2"
1273     func="$3"
1274     shift 3
1275     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1276 }
1277
1278 require_cpp(){
1279     name="$1"
1280     headers="$2"
1281     classes="$3"
1282     shift 3
1283     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1284 }
1285
1286 use_pkg_config(){
1287     pkg="$1"
1288     check_pkg_config "$@" || return 1
1289     add_cflags    $(get_safe "${pkg}_cflags")
1290     add_extralibs $(get_safe "${pkg}_libs")
1291 }
1292
1293 require_pkg_config(){
1294     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1295 }
1296
1297 require_libfreetype(){
1298     log require_libfreetype "$@"
1299     pkg="freetype2"
1300     check_cmd $pkg_config --exists --print-errors $pkg \
1301       || die "ERROR: $pkg not found"
1302     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1303     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1304     {
1305         echo "#include <ft2build.h>"
1306         echo "#include FT_FREETYPE_H"
1307         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1308         echo "int main(void) { return 0; }"
1309     } | check_ld "cc" $pkg_cflags $pkg_libs \
1310       && set_safe "${pkg}_cflags" $pkg_cflags \
1311       && set_safe "${pkg}_libs"   $pkg_libs \
1312       || die "ERROR: $pkg not found"
1313     add_cflags    $(get_safe "${pkg}_cflags")
1314     add_extralibs $(get_safe "${pkg}_libs")
1315 }
1316
1317 hostcc_e(){
1318     eval printf '%s\\n' $HOSTCC_E
1319 }
1320
1321 hostcc_o(){
1322     eval printf '%s\\n' $HOSTCC_O
1323 }
1324
1325 check_host_cc(){
1326     log check_host_cc "$@"
1327     cat > $TMPC
1328     log_file $TMPC
1329     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1330 }
1331
1332 check_host_cpp(){
1333     log check_host_cpp "$@"
1334     cat > $TMPC
1335     log_file $TMPC
1336     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1337 }
1338
1339 check_host_cppflags(){
1340     log check_host_cppflags "$@"
1341     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1342 int x;
1343 EOF
1344 }
1345
1346 check_host_cflags(){
1347     log check_host_cflags "$@"
1348     set -- $($host_cflags_filter "$@")
1349     check_host_cc "$@" <<EOF && append host_cflags "$@"
1350 int x;
1351 EOF
1352 }
1353
1354 check_host_cpp_condition(){
1355     log check_host_cpp_condition "$@"
1356     header=$1
1357     condition=$2
1358     shift 2
1359     check_host_cpp "$@" <<EOF
1360 #include <$header>
1361 #if !($condition)
1362 #error "unsatisfied condition: $condition"
1363 #endif
1364 EOF
1365 }
1366
1367 cp_if_changed(){
1368     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1369     mkdir -p "$(dirname $2)"
1370     $cp_f "$1" "$2"
1371 }
1372
1373 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1374 # system-dependent things.
1375
1376 AVCODEC_COMPONENTS="
1377     bsfs
1378     decoders
1379     encoders
1380     hwaccels
1381     parsers
1382 "
1383
1384 AVDEVICE_COMPONENTS="
1385     indevs
1386     outdevs
1387 "
1388 AVFILTER_COMPONENTS="
1389     filters
1390 "
1391 AVFORMAT_COMPONENTS="
1392     demuxers
1393     muxers
1394     protocols
1395 "
1396
1397 AVRESAMPLE_COMPONENTS=""
1398 AVUTIL_COMPONENTS=""
1399
1400 COMPONENT_LIST="
1401     $AVCODEC_COMPONENTS
1402     $AVDEVICE_COMPONENTS
1403     $AVFILTER_COMPONENTS
1404     $AVFORMAT_COMPONENTS
1405     $AVRESAMPLE_COMPONENTS
1406     $AVUTIL_COMPONENTS
1407 "
1408
1409 EXAMPLE_LIST="
1410     avio_reading_example
1411     avio_dir_cmd_example
1412     decoding_encoding_example
1413     demuxing_decoding_example
1414     extract_mvs_example
1415     filter_audio_example
1416     filtering_audio_example
1417     filtering_video_example
1418     metadata_example
1419     muxing_example
1420     qsvdec_example
1421     remuxing_example
1422     resampling_audio_example
1423     scaling_video_example
1424     transcode_aac_example
1425     transcoding_example
1426 "
1427
1428 EXTERNAL_LIBRARY_LIST="
1429     avisynth
1430     bzlib
1431     chromaprint
1432     crystalhd
1433     decklink
1434     frei0r
1435     gcrypt
1436     gmp
1437     gnutls
1438     iconv
1439     ladspa
1440     libaacplus
1441     libass
1442     libbluray
1443     libbs2b
1444     libcaca
1445     libcdio
1446     libcelt
1447     libdc1394
1448     libdcadec
1449     libfaac
1450     libfdk_aac
1451     libflite
1452     libfontconfig
1453     libfreetype
1454     libfribidi
1455     libgme
1456     libgsm
1457     libiec61883
1458     libilbc
1459     libkvazaar
1460     libmfx
1461     libmodplug
1462     libmp3lame
1463     libnut
1464     libopencore_amrnb
1465     libopencore_amrwb
1466     libopencv
1467     libopenh264
1468     libopenjpeg
1469     libopus
1470     libpulse
1471     libquvi
1472     librtmp
1473     librubberband
1474     libschroedinger
1475     libshine
1476     libsmbclient
1477     libsnappy
1478     libsoxr
1479     libspeex
1480     libssh
1481     libstagefright_h264
1482     libtesseract
1483     libtheora
1484     libtwolame
1485     libutvideo
1486     libv4l2
1487     libvidstab
1488     libvo_aacenc
1489     libvo_amrwbenc
1490     libvorbis
1491     libvpx
1492     libwavpack
1493     libwebp
1494     libx264
1495     libx265
1496     libxavs
1497     libxcb
1498     libxcb_shm
1499     libxcb_shape
1500     libxcb_xfixes
1501     libxvid
1502     libzimg
1503     libzmq
1504     libzvbi
1505     lzma
1506     mmal
1507     netcdf
1508     nvenc
1509     openal
1510     opencl
1511     opengl
1512     openssl
1513     schannel
1514     sdl
1515     securetransport
1516     x11grab
1517     xlib
1518     zlib
1519 "
1520
1521 DOCUMENT_LIST="
1522     doc
1523     htmlpages
1524     manpages
1525     podpages
1526     txtpages
1527 "
1528
1529 FEATURE_LIST="
1530     ftrapv
1531     gray
1532     hardcoded_tables
1533     runtime_cpudetect
1534     safe_bitstream_reader
1535     shared
1536     small
1537     static
1538     swscale_alpha
1539 "
1540
1541 HWACCEL_LIST="
1542     d3d11va
1543     dxva2
1544     vaapi
1545     vda
1546     vdpau
1547     videotoolbox
1548     xvmc
1549 "
1550
1551 LIBRARY_LIST="
1552     avcodec
1553     avdevice
1554     avfilter
1555     avformat
1556     avresample
1557     avutil
1558     postproc
1559     swresample
1560     swscale
1561 "
1562
1563 LICENSE_LIST="
1564     gpl
1565     nonfree
1566     version3
1567 "
1568
1569 PROGRAM_LIST="
1570     ffplay
1571     ffprobe
1572     ffserver
1573     ffmpeg
1574 "
1575
1576 SUBSYSTEM_LIST="
1577     dct
1578     dwt
1579     error_resilience
1580     faan
1581     fast_unaligned
1582     fft
1583     lsp
1584     lzo
1585     mdct
1586     pixelutils
1587     network
1588     rdft
1589 "
1590
1591 CONFIG_LIST="
1592     $COMPONENT_LIST
1593     $DOCUMENT_LIST
1594     $EXAMPLE_LIST
1595     $EXTERNAL_LIBRARY_LIST
1596     $FEATURE_LIST
1597     $HWACCEL_LIST
1598     $LICENSE_LIST
1599     $LIBRARY_LIST
1600     $PROGRAM_LIST
1601     $SUBSYSTEM_LIST
1602     fontconfig
1603     incompatible_libav_abi
1604     memalign_hack
1605     memory_poisoning
1606     neon_clobber_test
1607     pic
1608     pod2man
1609     raise_major
1610     thumb
1611     valgrind_backtrace
1612     xmm_clobber_test
1613 "
1614
1615 THREADS_LIST="
1616     pthreads
1617     os2threads
1618     w32threads
1619 "
1620
1621 ATOMICS_LIST="
1622     atomics_gcc
1623     atomics_suncc
1624     atomics_win32
1625 "
1626
1627 ARCH_LIST="
1628     aarch64
1629     alpha
1630     arm
1631     avr32
1632     avr32_ap
1633     avr32_uc
1634     bfin
1635     ia64
1636     m68k
1637     mips
1638     mips64
1639     parisc
1640     ppc
1641     ppc64
1642     s390
1643     sh4
1644     sparc
1645     sparc64
1646     tilegx
1647     tilepro
1648     tomi
1649     x86
1650     x86_32
1651     x86_64
1652 "
1653
1654 ARCH_EXT_LIST_ARM="
1655     armv5te
1656     armv6
1657     armv6t2
1658     armv8
1659     neon
1660     vfp
1661     vfpv3
1662     setend
1663 "
1664
1665 ARCH_EXT_LIST_MIPS="
1666     mipsfpu
1667     mips32r2
1668     mips64r2
1669     mips64r6
1670     mipsdsp
1671     mipsdspr2
1672     msa
1673 "
1674
1675 ARCH_EXT_LIST_LOONGSON="
1676     loongson2
1677     loongson3
1678     mmi
1679 "
1680
1681 ARCH_EXT_LIST_X86_SIMD="
1682     aesni
1683     amd3dnow
1684     amd3dnowext
1685     avx
1686     avx2
1687     fma3
1688     fma4
1689     mmx
1690     mmxext
1691     sse
1692     sse2
1693     sse3
1694     sse4
1695     sse42
1696     ssse3
1697     xop
1698 "
1699
1700 ARCH_EXT_LIST_PPC="
1701     altivec
1702     dcbzl
1703     ldbrx
1704     power8
1705     ppc4xx
1706     vsx
1707 "
1708
1709 ARCH_EXT_LIST_X86="
1710     $ARCH_EXT_LIST_X86_SIMD
1711     cpunop
1712     i686
1713 "
1714
1715 ARCH_EXT_LIST="
1716     $ARCH_EXT_LIST_ARM
1717     $ARCH_EXT_LIST_PPC
1718     $ARCH_EXT_LIST_X86
1719     $ARCH_EXT_LIST_MIPS
1720     $ARCH_EXT_LIST_LOONGSON
1721 "
1722
1723 ARCH_FEATURES="
1724     aligned_stack
1725     fast_64bit
1726     fast_clz
1727     fast_cmov
1728     local_aligned_8
1729     local_aligned_16
1730     local_aligned_32
1731     simd_align_16
1732 "
1733
1734 BUILTIN_LIST="
1735     atomic_cas_ptr
1736     atomic_compare_exchange
1737     machine_rw_barrier
1738     MemoryBarrier
1739     mm_empty
1740     rdtsc
1741     sarestart
1742     sync_val_compare_and_swap
1743 "
1744 HAVE_LIST_CMDLINE="
1745     inline_asm
1746     symver
1747     yasm
1748 "
1749
1750 HAVE_LIST_PUB="
1751     bigendian
1752     fast_unaligned
1753     incompatible_libav_abi
1754 "
1755
1756 HEADERS_LIST="
1757     alsa_asoundlib_h
1758     altivec_h
1759     arpa_inet_h
1760     asm_types_h
1761     cdio_paranoia_h
1762     cdio_paranoia_paranoia_h
1763     dev_bktr_ioctl_bt848_h
1764     dev_bktr_ioctl_meteor_h
1765     dev_ic_bt8xx_h
1766     dev_video_bktr_ioctl_bt848_h
1767     dev_video_meteor_ioctl_meteor_h
1768     direct_h
1769     dirent_h
1770     dlfcn_h
1771     d3d11_h
1772     dxva_h
1773     ES2_gl_h
1774     gsm_h
1775     io_h
1776     mach_mach_time_h
1777     machine_ioctl_bt848_h
1778     machine_ioctl_meteor_h
1779     malloc_h
1780     openjpeg_1_5_openjpeg_h
1781     OpenGL_gl3_h
1782     poll_h
1783     sndio_h
1784     soundcard_h
1785     sys_mman_h
1786     sys_param_h
1787     sys_resource_h
1788     sys_select_h
1789     sys_soundcard_h
1790     sys_time_h
1791     sys_un_h
1792     sys_videoio_h
1793     termios_h
1794     udplite_h
1795     unistd_h
1796     valgrind_valgrind_h
1797     windows_h
1798     winsock2_h
1799 "
1800
1801 INTRINSICS_LIST="
1802     intrinsics_neon
1803 "
1804
1805 COMPLEX_FUNCS="
1806     cabs
1807     cexp
1808 "
1809
1810 MATH_FUNCS="
1811     atanf
1812     atan2f
1813     cbrt
1814     cbrtf
1815     copysign
1816     cosf
1817     erf
1818     exp10
1819     exp10f
1820     exp2
1821     exp2f
1822     expf
1823     hypot
1824     isinf
1825     isnan
1826     ldexpf
1827     llrint
1828     llrintf
1829     log2
1830     log2f
1831     log10f
1832     lrint
1833     lrintf
1834     powf
1835     rint
1836     round
1837     roundf
1838     sinf
1839     trunc
1840     truncf
1841 "
1842
1843 SYSTEM_FUNCS="
1844     access
1845     aligned_malloc
1846     arc4random
1847     clock_gettime
1848     closesocket
1849     CommandLineToArgvW
1850     CoTaskMemFree
1851     CryptGenRandom
1852     dlopen
1853     fcntl
1854     flt_lim
1855     fork
1856     getaddrinfo
1857     gethrtime
1858     getopt
1859     GetProcessAffinityMask
1860     GetProcessMemoryInfo
1861     GetProcessTimes
1862     getrusage
1863     GetSystemTimeAsFileTime
1864     gettimeofday
1865     glob
1866     glXGetProcAddress
1867     gmtime_r
1868     inet_aton
1869     isatty
1870     jack_port_get_latency_range
1871     kbhit
1872     localtime_r
1873     lstat
1874     lzo1x_999_compress
1875     mach_absolute_time
1876     MapViewOfFile
1877     memalign
1878     mkstemp
1879     mmap
1880     mprotect
1881     nanosleep
1882     PeekNamedPipe
1883     posix_memalign
1884     pthread_cancel
1885     sched_getaffinity
1886     SetConsoleTextAttribute
1887     SetConsoleCtrlHandler
1888     setmode
1889     setrlimit
1890     Sleep
1891     strerror_r
1892     sysconf
1893     sysctl
1894     usleep
1895     UTGetOSTypeFromString
1896     VirtualAlloc
1897     wglGetProcAddress
1898 "
1899
1900 TOOLCHAIN_FEATURES="
1901     as_dn_directive
1902     as_func
1903     as_object_arch
1904     asm_mod_q
1905     attribute_may_alias
1906     attribute_packed
1907     ebp_available
1908     ebx_available
1909     gnu_as
1910     gnu_windres
1911     ibm_asm
1912     inline_asm_labels
1913     inline_asm_nonlocal_labels
1914     inline_asm_direct_symbol_refs
1915     pragma_deprecated
1916     rsync_contimeout
1917     symver_asm_label
1918     symver_gnu_asm
1919     vfp_args
1920     xform_asm
1921     xmm_clobbers
1922 "
1923
1924 TYPES_LIST="
1925     CONDITION_VARIABLE_Ptr
1926     socklen_t
1927     struct_addrinfo
1928     struct_group_source_req
1929     struct_ip_mreq_source
1930     struct_ipv6_mreq
1931     struct_pollfd
1932     struct_rusage_ru_maxrss
1933     struct_sctp_event_subscribe
1934     struct_sockaddr_in6
1935     struct_sockaddr_sa_len
1936     struct_sockaddr_storage
1937     struct_stat_st_mtim_tv_nsec
1938     struct_v4l2_frmivalenum_discrete
1939 "
1940
1941 HAVE_LIST="
1942     $ARCH_EXT_LIST
1943     $(add_suffix _external $ARCH_EXT_LIST)
1944     $(add_suffix _inline   $ARCH_EXT_LIST)
1945     $ARCH_FEATURES
1946     $ATOMICS_LIST
1947     $BUILTIN_LIST
1948     $COMPLEX_FUNCS
1949     $HAVE_LIST_CMDLINE
1950     $HAVE_LIST_PUB
1951     $HEADERS_LIST
1952     $INTRINSICS_LIST
1953     $MATH_FUNCS
1954     $SYSTEM_FUNCS
1955     $THREADS_LIST
1956     $TOOLCHAIN_FEATURES
1957     $TYPES_LIST
1958     atomics_native
1959     dos_paths
1960     dxva2api_cobj
1961     dxva2_lib
1962     winrt
1963     libc_msvcrt
1964     libdc1394_1
1965     libdc1394_2
1966     makeinfo
1967     makeinfo_html
1968     perl
1969     pod2man
1970     sdl
1971     section_data_rel_ro
1972     texi2html
1973     threads
1974     vaapi_x11
1975     vdpau_x11
1976     xlib
1977 "
1978
1979 # options emitted with CONFIG_ prefix but not available on the command line
1980 CONFIG_EXTRA="
1981     aandcttables
1982     ac3dsp
1983     audio_frame_queue
1984     audiodsp
1985     blockdsp
1986     bswapdsp
1987     cabac
1988     dirac_parse
1989     dvprofile
1990     exif
1991     faandct
1992     faanidct
1993     fdctdsp
1994     flacdsp
1995     fmtconvert
1996     frame_thread_encoder
1997     g722dsp
1998     golomb
1999     gplv3
2000     h263dsp
2001     h264chroma
2002     h264dsp
2003     h264pred
2004     h264qpel
2005     hpeldsp
2006     huffman
2007     huffyuvdsp
2008     huffyuvencdsp
2009     idctdsp
2010     iirfilter
2011     imdct15
2012     intrax8
2013     ividsp
2014     jpegtables
2015     libx262
2016     lgplv3
2017     llauddsp
2018     llviddsp
2019     lpc
2020     lzf
2021     me_cmp
2022     mpeg_er
2023     mpegaudio
2024     mpegaudiodsp
2025     mpegvideo
2026     mpegvideoenc
2027     mss34dsp
2028     pixblockdsp
2029     qpeldsp
2030     qsv
2031     qsvdec
2032     qsvenc
2033     rangecoder
2034     riffdec
2035     riffenc
2036     rtpdec
2037     rtpenc_chain
2038     rv34dsp
2039     sinewin
2040     snappy
2041     startcode
2042     texturedsp
2043     texturedspenc
2044     tpeldsp
2045     videodsp
2046     vp3dsp
2047     vp56dsp
2048     vp8dsp
2049     wma_freqs
2050     wmv2dsp
2051 "
2052
2053 CMDLINE_SELECT="
2054     $ARCH_EXT_LIST
2055     $CONFIG_LIST
2056     $HAVE_LIST_CMDLINE
2057     $THREADS_LIST
2058     asm
2059     cross_compile
2060     debug
2061     extra_warnings
2062     logging
2063     lto
2064     optimizations
2065     rpath
2066     stripping
2067 "
2068
2069 PATHS_LIST="
2070     bindir
2071     datadir
2072     docdir
2073     incdir
2074     libdir
2075     mandir
2076     pkgconfigdir
2077     prefix
2078     shlibdir
2079 "
2080
2081 CMDLINE_SET="
2082     $PATHS_LIST
2083     ar
2084     arch
2085     as
2086     assert_level
2087     build_suffix
2088     cc
2089     objcc
2090     cpu
2091     cross_prefix
2092     custom_allocator
2093     cxx
2094     dep_cc
2095     doxygen
2096     env
2097     extra_version
2098     gas
2099     host_cc
2100     host_cflags
2101     host_ld
2102     host_ldflags
2103     host_libs
2104     host_os
2105     install
2106     ld
2107     logfile
2108     malloc_prefix
2109     nm
2110     optflags
2111     pkg_config
2112     pkg_config_flags
2113     progs_suffix
2114     random_seed
2115     ranlib
2116     samples
2117     strip
2118     sws_max_filter_size
2119     sysinclude
2120     sysroot
2121     target_exec
2122     target_os
2123     target_path
2124     target_samples
2125     tempprefix
2126     toolchain
2127     valgrind
2128     yasmexe
2129 "
2130
2131 CMDLINE_APPEND="
2132     extra_cflags
2133     extra_cxxflags
2134     extra_objcflags
2135     host_cppflags
2136 "
2137
2138 # code dependency declarations
2139
2140 # architecture extensions
2141
2142 armv5te_deps="arm"
2143 armv6_deps="arm"
2144 armv6t2_deps="arm"
2145 armv8_deps="aarch64"
2146 neon_deps_any="aarch64 arm"
2147 intrinsics_neon_deps="neon"
2148 vfp_deps_any="aarch64 arm"
2149 vfpv3_deps="vfp"
2150 setend_deps="arm"
2151
2152 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2153
2154 mipsfpu_deps="mips"
2155 mipsdsp_deps="mips"
2156 mipsdspr2_deps="mips"
2157 mips32r2_deps="mips"
2158 mips64r2_deps="mips"
2159 mips64r6_deps="mips"
2160 msa_deps="mips"
2161 mmi_deps="mips"
2162
2163 altivec_deps="ppc"
2164 dcbzl_deps="ppc"
2165 ldbrx_deps="ppc"
2166 ppc4xx_deps="ppc"
2167 vsx_deps="altivec"
2168 power8_deps="vsx"
2169
2170 cpunop_deps="i686"
2171 x86_64_select="i686"
2172 x86_64_suggest="fast_cmov"
2173
2174 amd3dnow_deps="mmx"
2175 amd3dnowext_deps="amd3dnow"
2176 i686_deps="x86"
2177 mmx_deps="x86"
2178 mmxext_deps="mmx"
2179 sse_deps="mmxext"
2180 sse2_deps="sse"
2181 sse3_deps="sse2"
2182 ssse3_deps="sse3"
2183 sse4_deps="ssse3"
2184 sse42_deps="sse4"
2185 aesni_deps="sse42"
2186 avx_deps="sse42"
2187 xop_deps="avx"
2188 fma3_deps="avx"
2189 fma4_deps="avx"
2190 avx2_deps="avx"
2191
2192 mmx_external_deps="yasm"
2193 mmx_inline_deps="inline_asm"
2194 mmx_suggest="mmx_external mmx_inline"
2195
2196 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2197     eval dep=\$${ext}_deps
2198     eval ${ext}_external_deps='"${dep}_external"'
2199     eval ${ext}_inline_deps='"${dep}_inline"'
2200     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2201 done
2202
2203 aligned_stack_if_any="aarch64 ppc x86"
2204 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2205 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2206 fast_unaligned_if_any="aarch64 ppc x86"
2207 simd_align_16_if_any="altivec neon sse"
2208
2209 # system capabilities
2210 symver_if_any="symver_asm_label symver_gnu_asm"
2211 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2212
2213 # threading support
2214 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2215 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2216 atomics_win32_if="MemoryBarrier"
2217 atomics_native_if_any="$ATOMICS_LIST"
2218 w32threads_deps="atomics_native"
2219 threads_if_any="$THREADS_LIST"
2220
2221 # subsystems
2222 dct_select="rdft"
2223 dirac_parse_select="golomb"
2224 error_resilience_select="me_cmp"
2225 faandct_deps="faan fdctdsp"
2226 faanidct_deps="faan idctdsp"
2227 frame_thread_encoder_deps="encoders threads"
2228 intrax8_select="error_resilience"
2229 mdct_select="fft"
2230 rdft_select="fft"
2231 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2232 mpeg_er_select="error_resilience"
2233 mpegaudio_select="mpegaudiodsp"
2234 mpegaudiodsp_select="dct"
2235 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2236 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2237 qsvdec_select="qsv"
2238 qsvenc_select="qsv"
2239
2240 # decoders / encoders
2241 aac_decoder_select="imdct15 mdct sinewin"
2242 aac_fixed_decoder_select="mdct sinewin"
2243 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2245 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2246 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2247 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2248 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2249 adpcm_g722_decoder_select="g722dsp"
2250 adpcm_g722_encoder_select="g722dsp"
2251 aic_decoder_select="golomb idctdsp"
2252 alac_encoder_select="lpc"
2253 als_decoder_select="bswapdsp"
2254 amrnb_decoder_select="lsp"
2255 amrwb_decoder_select="lsp"
2256 amv_decoder_select="sp5x_decoder exif"
2257 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2258 ape_decoder_select="bswapdsp llauddsp"
2259 apng_decoder_select="zlib"
2260 apng_encoder_select="huffyuvencdsp zlib"
2261 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2262 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2263 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2264 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2265 atrac1_decoder_select="mdct sinewin"
2266 atrac3_decoder_select="mdct"
2267 atrac3p_decoder_select="mdct sinewin"
2268 avrn_decoder_select="exif jpegtables"
2269 bink_decoder_select="blockdsp hpeldsp"
2270 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2271 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2272 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2273 cllc_decoder_select="bswapdsp"
2274 comfortnoise_encoder_select="lpc"
2275 cook_decoder_select="audiodsp mdct sinewin"
2276 cscd_decoder_select="lzo"
2277 cscd_decoder_suggest="zlib"
2278 dca_decoder_select="fmtconvert mdct"
2279 dds_decoder_select="texturedsp"
2280 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2281 dnxhd_decoder_select="blockdsp idctdsp"
2282 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2283 dvvideo_decoder_select="dvprofile idctdsp"
2284 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2285 dxa_decoder_select="zlib"
2286 dxv_decoder_select="lzf texturedsp"
2287 eac3_decoder_select="ac3_decoder"
2288 eac3_encoder_select="ac3_encoder"
2289 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2290 eatgq_decoder_select="aandcttables"
2291 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2292 exr_decoder_select="zlib"
2293 ffv1_decoder_select="golomb rangecoder"
2294 ffv1_encoder_select="rangecoder"
2295 ffvhuff_decoder_select="huffyuv_decoder"
2296 ffvhuff_encoder_select="huffyuv_encoder"
2297 fic_decoder_select="golomb"
2298 flac_decoder_select="flacdsp golomb"
2299 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2300 flashsv_decoder_select="zlib"
2301 flashsv_encoder_select="zlib"
2302 flashsv2_encoder_select="zlib"
2303 flashsv2_decoder_select="zlib"
2304 flv_decoder_select="h263_decoder"
2305 flv_encoder_select="h263_encoder"
2306 fourxm_decoder_select="blockdsp bswapdsp"
2307 fraps_decoder_select="bswapdsp huffman"
2308 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2309 g729_decoder_select="audiodsp"
2310 h261_decoder_select="mpegvideo"
2311 h261_encoder_select="aandcttables mpegvideoenc"
2312 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2313 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2314 h263i_decoder_select="h263_decoder"
2315 h263p_decoder_select="h263_decoder"
2316 h263p_encoder_select="h263_encoder"
2317 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2318 h264_decoder_suggest="error_resilience"
2319 h264_qsv_decoder_deps="libmfx"
2320 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2321 h264_qsv_encoder_deps="libmfx"
2322 h264_qsv_encoder_select="qsvenc"
2323 hap_decoder_select="snappy texturedsp"
2324 hap_encoder_deps="libsnappy"
2325 hap_encoder_select="texturedspenc"
2326 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2327 hevc_qsv_encoder_deps="libmfx"
2328 hevc_qsv_decoder_deps="libmfx"
2329 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2330 hevc_qsv_encoder_select="qsvenc"
2331 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2332 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2333 iac_decoder_select="imc_decoder"
2334 imc_decoder_select="bswapdsp fft mdct sinewin"
2335 indeo3_decoder_select="hpeldsp"
2336 indeo4_decoder_select="ividsp"
2337 indeo5_decoder_select="ividsp"
2338 interplay_video_decoder_select="hpeldsp"
2339 jpegls_decoder_select="golomb mjpeg_decoder"
2340 jpegls_encoder_select="golomb"
2341 jv_decoder_select="blockdsp"
2342 lagarith_decoder_select="huffyuvdsp"
2343 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2344 loco_decoder_select="golomb"
2345 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2346 metasound_decoder_select="lsp mdct sinewin"
2347 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2348 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2349 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2350 mjpegb_decoder_select="mjpeg_decoder"
2351 mlp_decoder_select="mlp_parser"
2352 motionpixels_decoder_select="bswapdsp"
2353 mp1_decoder_select="mpegaudio"
2354 mp1float_decoder_select="mpegaudio"
2355 mp2_decoder_select="mpegaudio"
2356 mp2float_decoder_select="mpegaudio"
2357 mp3_decoder_select="mpegaudio"
2358 mp3adu_decoder_select="mpegaudio"
2359 mp3adufloat_decoder_select="mpegaudio"
2360 mp3float_decoder_select="mpegaudio"
2361 mp3on4_decoder_select="mpegaudio"
2362 mp3on4float_decoder_select="mpegaudio"
2363 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2364 mpc8_decoder_select="mpegaudiodsp"
2365 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2366 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2367 mpegvideo_decoder_select="mpegvideo"
2368 mpeg1video_decoder_select="mpegvideo"
2369 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2370 mpeg2video_decoder_select="mpegvideo"
2371 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2372 mpeg2_qsv_decoder_deps="libmfx"
2373 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2374 mpeg2_qsv_encoder_deps="libmfx"
2375 mpeg2_qsv_encoder_select="qsvenc"
2376 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2377 mpeg4_encoder_select="h263_encoder"
2378 msa1_decoder_select="mss34dsp"
2379 msmpeg4v1_decoder_select="h263_decoder"
2380 msmpeg4v2_decoder_select="h263_decoder"
2381 msmpeg4v2_encoder_select="h263_encoder"
2382 msmpeg4v3_decoder_select="h263_decoder"
2383 msmpeg4v3_encoder_select="h263_encoder"
2384 mss2_decoder_select="vc1_decoder"
2385 mts2_decoder_select="mss34dsp"
2386 mxpeg_decoder_select="mjpeg_decoder"
2387 nellymoser_decoder_select="mdct sinewin"
2388 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2389 nuv_decoder_select="idctdsp lzo"
2390 on2avc_decoder_select="mdct"
2391 opus_decoder_deps="swresample"
2392 opus_decoder_select="imdct15"
2393 png_decoder_select="zlib"
2394 png_encoder_select="huffyuvencdsp zlib"
2395 prores_decoder_select="blockdsp idctdsp"
2396 prores_encoder_select="fdctdsp"
2397 qcelp_decoder_select="lsp"
2398 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2399 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2400 ra_144_decoder_select="audiodsp"
2401 ralf_decoder_select="golomb"
2402 rawvideo_decoder_select="bswapdsp"
2403 rscc_decoder_select="zlib"
2404 rtjpeg_decoder_select="me_cmp"
2405 rv10_decoder_select="h263_decoder"
2406 rv10_encoder_select="h263_encoder"
2407 rv20_decoder_select="h263_decoder"
2408 rv20_encoder_select="h263_encoder"
2409 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2410 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2411 screenpresso_decoder_select="zlib"
2412 shorten_decoder_select="golomb"
2413 sipr_decoder_select="lsp"
2414 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2415 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2416 sonic_decoder_select="golomb rangecoder"
2417 sonic_encoder_select="golomb rangecoder"
2418 sonic_ls_encoder_select="golomb rangecoder"
2419 sp5x_decoder_select="mjpeg_decoder"
2420 svq1_decoder_select="hpeldsp"
2421 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2422 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2423 svq3_decoder_suggest="zlib"
2424 tak_decoder_select="audiodsp"
2425 tdsc_decoder_select="zlib mjpeg_decoder"
2426 theora_decoder_select="vp3_decoder"
2427 thp_decoder_select="mjpeg_decoder"
2428 tiff_decoder_suggest="zlib lzma"
2429 tiff_encoder_suggest="zlib"
2430 truehd_decoder_select="mlp_parser"
2431 truemotion2_decoder_select="bswapdsp"
2432 truespeech_decoder_select="bswapdsp"
2433 tscc_decoder_select="zlib"
2434 twinvq_decoder_select="mdct lsp sinewin"
2435 txd_decoder_select="texturedsp"
2436 utvideo_decoder_select="bswapdsp"
2437 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2438 vble_decoder_select="huffyuvdsp"
2439 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2440 vc1image_decoder_select="vc1_decoder"
2441 vc1_qsv_decoder_deps="libmfx"
2442 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2443 vorbis_decoder_select="mdct"
2444 vorbis_encoder_select="mdct"
2445 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2446 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2447 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2448 vp6a_decoder_select="vp6_decoder"
2449 vp6f_decoder_select="vp6_decoder"
2450 vp7_decoder_select="h264pred videodsp vp8dsp"
2451 vp8_decoder_select="h264pred videodsp vp8dsp"
2452 vp9_decoder_select="videodsp vp9_parser"
2453 webp_decoder_select="vp8_decoder"
2454 wmalossless_decoder_select="llauddsp"
2455 wmapro_decoder_select="mdct sinewin wma_freqs"
2456 wmav1_decoder_select="mdct sinewin wma_freqs"
2457 wmav1_encoder_select="mdct sinewin wma_freqs"
2458 wmav2_decoder_select="mdct sinewin wma_freqs"
2459 wmav2_encoder_select="mdct sinewin wma_freqs"
2460 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2461 wmv1_decoder_select="h263_decoder"
2462 wmv1_encoder_select="h263_encoder"
2463 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2464 wmv2_encoder_select="h263_encoder wmv2dsp"
2465 wmv3_decoder_select="vc1_decoder"
2466 wmv3image_decoder_select="wmv3_decoder"
2467 zerocodec_decoder_select="zlib"
2468 zlib_decoder_select="zlib"
2469 zlib_encoder_select="zlib"
2470 zmbv_decoder_select="zlib"
2471 zmbv_encoder_select="zlib"
2472
2473 # hardware accelerators
2474 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2475 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2476 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2477 vaapi_deps="va_va_h"
2478 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2479 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2480 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2481 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2482 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2483 xvmc_deps="X11_extensions_XvMClib_h"
2484
2485 h263_vaapi_hwaccel_deps="vaapi"
2486 h263_vaapi_hwaccel_select="h263_decoder"
2487 h263_videotoolbox_hwaccel_deps="videotoolbox"
2488 h263_videotoolbox_hwaccel_select="h263_decoder"
2489 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2490 h264_d3d11va_hwaccel_deps="d3d11va"
2491 h264_d3d11va_hwaccel_select="h264_decoder"
2492 h264_dxva2_hwaccel_deps="dxva2"
2493 h264_dxva2_hwaccel_select="h264_decoder"
2494 h264_mmal_decoder_deps="mmal"
2495 h264_mmal_hwaccel_deps="mmal"
2496 h264_mmal_decoder_select="h264_decoder"
2497 h264_mmal_encoder_deps="mmal"
2498 h264_qsv_hwaccel_deps="libmfx"
2499 h264_vaapi_hwaccel_deps="vaapi"
2500 h264_vaapi_hwaccel_select="h264_decoder"
2501 h264_vda_decoder_deps="vda"
2502 h264_vda_decoder_select="h264_decoder"
2503 h264_vda_hwaccel_deps="vda"
2504 h264_vda_hwaccel_select="h264_decoder"
2505 h264_vda_old_hwaccel_deps="vda"
2506 h264_vda_old_hwaccel_select="h264_decoder"
2507 h264_vdpau_decoder_deps="vdpau"
2508 h264_vdpau_decoder_select="h264_decoder"
2509 h264_vdpau_hwaccel_deps="vdpau"
2510 h264_vdpau_hwaccel_select="h264_decoder"
2511 h264_videotoolbox_hwaccel_deps="videotoolbox"
2512 h264_videotoolbox_hwaccel_select="h264_decoder"
2513 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2514 hevc_d3d11va_hwaccel_select="hevc_decoder"
2515 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2516 hevc_dxva2_hwaccel_select="hevc_decoder"
2517 hevc_qsv_hwaccel_deps="libmfx"
2518 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2519 hevc_vaapi_hwaccel_select="hevc_decoder"
2520 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2521 hevc_vdpau_hwaccel_select="hevc_decoder"
2522 mpeg_vdpau_decoder_deps="vdpau"
2523 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2524 mpeg_xvmc_hwaccel_deps="xvmc"
2525 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2526 mpeg1_vdpau_decoder_deps="vdpau"
2527 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2528 mpeg1_vdpau_hwaccel_deps="vdpau"
2529 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2530 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2531 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2532 mpeg1_xvmc_hwaccel_deps="xvmc"
2533 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2534 mpeg2_crystalhd_decoder_select="crystalhd"
2535 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2536 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2537 mpeg2_dxva2_hwaccel_deps="dxva2"
2538 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2539 mpeg2_mmal_decoder_deps="mmal"
2540 mpeg2_mmal_hwaccel_deps="mmal"
2541 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2542 mpeg2_qsv_hwaccel_deps="libmfx"
2543 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2544 mpeg2_vaapi_hwaccel_deps="vaapi"
2545 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2546 mpeg2_vdpau_hwaccel_deps="vdpau"
2547 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2549 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2550 mpeg2_xvmc_hwaccel_deps="xvmc"
2551 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2552 mpeg4_crystalhd_decoder_select="crystalhd"
2553 mpeg4_vaapi_hwaccel_deps="vaapi"
2554 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2555 mpeg4_vdpau_decoder_deps="vdpau"
2556 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2557 mpeg4_vdpau_hwaccel_deps="vdpau"
2558 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2559 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2560 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2561 msmpeg4_crystalhd_decoder_select="crystalhd"
2562 vc1_crystalhd_decoder_select="crystalhd"
2563 vc1_d3d11va_hwaccel_deps="d3d11va"
2564 vc1_d3d11va_hwaccel_select="vc1_decoder"
2565 vc1_dxva2_hwaccel_deps="dxva2"
2566 vc1_dxva2_hwaccel_select="vc1_decoder"
2567 vc1_vaapi_hwaccel_deps="vaapi"
2568 vc1_vaapi_hwaccel_select="vc1_decoder"
2569 vc1_vdpau_decoder_deps="vdpau"
2570 vc1_vdpau_decoder_select="vc1_decoder"
2571 vc1_vdpau_hwaccel_deps="vdpau"
2572 vc1_vdpau_hwaccel_select="vc1_decoder"
2573 vc1_mmal_decoder_deps="mmal"
2574 vc1_mmal_hwaccel_deps="mmal"
2575 vc1_mmal_decoder_select="vc1_decoder"
2576 vc1_qsv_hwaccel_deps="libmfx"
2577 vc1_qsv_hwaccel_select="qsvdec_vc1"
2578 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2579 vp9_d3d11va_hwaccel_select="vp9_decoder"
2580 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2581 vp9_dxva2_hwaccel_select="vp9_decoder"
2582 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2583 vp9_vaapi_hwaccel_select="vp9_decoder"
2584 wmv3_crystalhd_decoder_select="crystalhd"
2585 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2586 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2587 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2588 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2589 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2590
2591 # parsers
2592 h264_parser_select="h264_decoder"
2593 hevc_parser_select="golomb"
2594 mpegvideo_parser_select="mpegvideo"
2595 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2596 vc1_parser_select="mpegvideo startcode vc1_decoder"
2597
2598 # bitstream_filters
2599 mjpeg2jpeg_bsf_select="jpegtables"
2600
2601 # external libraries
2602 chromaprint_muxer_deps="chromaprint"
2603 libaacplus_encoder_deps="libaacplus"
2604 libcelt_decoder_deps="libcelt"
2605 libdcadec_decoder_deps="libdcadec"
2606 libfaac_encoder_deps="libfaac"
2607 libfaac_encoder_select="audio_frame_queue"
2608 libfdk_aac_decoder_deps="libfdk_aac"
2609 libfdk_aac_encoder_deps="libfdk_aac"
2610 libfdk_aac_encoder_select="audio_frame_queue"
2611 libgme_demuxer_deps="libgme"
2612 libgsm_decoder_deps="libgsm"
2613 libgsm_encoder_deps="libgsm"
2614 libgsm_ms_decoder_deps="libgsm"
2615 libgsm_ms_encoder_deps="libgsm"
2616 libilbc_decoder_deps="libilbc"
2617 libilbc_encoder_deps="libilbc"
2618 libkvazaar_encoder_deps="libkvazaar"
2619 libmodplug_demuxer_deps="libmodplug"
2620 libmp3lame_encoder_deps="libmp3lame"
2621 libmp3lame_encoder_select="audio_frame_queue"
2622 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2623 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2624 libopencore_amrnb_encoder_select="audio_frame_queue"
2625 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2626 libopenh264_encoder_deps="libopenh264"
2627 libopenjpeg_decoder_deps="libopenjpeg"
2628 libopenjpeg_encoder_deps="libopenjpeg"
2629 libopus_decoder_deps="libopus"
2630 libopus_encoder_deps="libopus"
2631 libopus_encoder_select="audio_frame_queue"
2632 libquvi_demuxer_deps="libquvi"
2633 libschroedinger_decoder_deps="libschroedinger"
2634 libschroedinger_encoder_deps="libschroedinger"
2635 libshine_encoder_deps="libshine"
2636 libshine_encoder_select="audio_frame_queue"
2637 libspeex_decoder_deps="libspeex"
2638 libspeex_encoder_deps="libspeex"
2639 libspeex_encoder_select="audio_frame_queue"
2640 libstagefright_h264_decoder_deps="libstagefright_h264"
2641 libtheora_encoder_deps="libtheora"
2642 libtwolame_encoder_deps="libtwolame"
2643 libvo_aacenc_encoder_deps="libvo_aacenc"
2644 libvo_aacenc_encoder_select="audio_frame_queue"
2645 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2646 libvorbis_decoder_deps="libvorbis"
2647 libvorbis_encoder_deps="libvorbis"
2648 libvorbis_encoder_select="audio_frame_queue"
2649 libvpx_vp8_decoder_deps="libvpx"
2650 libvpx_vp8_encoder_deps="libvpx"
2651 libvpx_vp9_decoder_deps="libvpx"
2652 libvpx_vp9_encoder_deps="libvpx"
2653 libwavpack_encoder_deps="libwavpack"
2654 libwebp_encoder_deps="libwebp"
2655 libwebp_anim_encoder_deps="libwebp"
2656 libx262_encoder_deps="libx262"
2657 libx264_encoder_deps="libx264"
2658 libx264rgb_encoder_deps="libx264"
2659 libx264rgb_encoder_select="libx264_encoder"
2660 libx265_encoder_deps="libx265"
2661 libxavs_encoder_deps="libxavs"
2662 libxvid_encoder_deps="libxvid"
2663 libutvideo_decoder_deps="libutvideo"
2664 libutvideo_encoder_deps="libutvideo"
2665 libzvbi_teletext_decoder_deps="libzvbi"
2666 nvenc_encoder_deps="nvenc"
2667 nvenc_h264_encoder_deps="nvenc"
2668 nvenc_hevc_encoder_deps="nvenc"
2669
2670 # demuxers / muxers
2671 ac3_demuxer_select="ac3_parser"
2672 asf_demuxer_select="riffdec"
2673 asf_o_demuxer_select="riffdec"
2674 asf_muxer_select="riffenc"
2675 asf_stream_muxer_select="asf_muxer"
2676 avi_demuxer_select="riffdec exif"
2677 avi_muxer_select="riffenc"
2678 avisynth_demuxer_deps="avisynth"
2679 avisynth_demuxer_select="riffdec"
2680 caf_demuxer_select="riffdec"
2681 dash_muxer_select="mp4_muxer"
2682 dirac_demuxer_select="dirac_parser"
2683 dts_demuxer_select="dca_parser"
2684 dtshd_demuxer_select="dca_parser"
2685 dv_demuxer_select="dvprofile"
2686 dv_muxer_select="dvprofile"
2687 dxa_demuxer_select="riffdec"
2688 eac3_demuxer_select="ac3_parser"
2689 f4v_muxer_select="mov_muxer"
2690 flac_demuxer_select="flac_parser"
2691 hds_muxer_select="flv_muxer"
2692 hls_muxer_select="mpegts_muxer"
2693 image2_alias_pix_demuxer_select="image2_demuxer"
2694 image2_brender_pix_demuxer_select="image2_demuxer"
2695 ipod_muxer_select="mov_muxer"
2696 ismv_muxer_select="mov_muxer"
2697 libnut_demuxer_deps="libnut"
2698 libnut_muxer_deps="libnut"
2699 matroska_audio_muxer_select="matroska_muxer"
2700 matroska_demuxer_select="riffdec"
2701 matroska_demuxer_suggest="bzlib lzo zlib"
2702 matroska_muxer_select="riffenc"
2703 mmf_muxer_select="riffenc"
2704 mov_demuxer_select="riffdec"
2705 mov_demuxer_suggest="zlib"
2706 mov_muxer_select="riffenc rtpenc_chain"
2707 mp3_demuxer_select="mpegaudio_parser"
2708 mp4_muxer_select="mov_muxer"
2709 mpegts_muxer_select="adts_muxer latm_muxer"
2710 mpegtsraw_demuxer_select="mpegts_demuxer"
2711 mxf_d10_muxer_select="mxf_muxer"
2712 mxf_opatom_muxer_select="mxf_muxer"
2713 nut_muxer_select="riffenc"
2714 nuv_demuxer_select="riffdec"
2715 oga_muxer_select="ogg_muxer"
2716 ogg_demuxer_select="dirac_parse"
2717 opus_muxer_select="ogg_muxer"
2718 psp_muxer_select="mov_muxer"
2719 rtp_demuxer_select="sdp_demuxer"
2720 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2721 rtsp_demuxer_select="http_protocol rtpdec"
2722 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2723 sap_demuxer_select="sdp_demuxer"
2724 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2725 sdp_demuxer_select="rtpdec"
2726 smoothstreaming_muxer_select="ismv_muxer"
2727 spdif_muxer_select="aac_parser"
2728 spx_muxer_select="ogg_muxer"
2729 tak_demuxer_select="tak_parser"
2730 tg2_muxer_select="mov_muxer"
2731 tgp_muxer_select="mov_muxer"
2732 vobsub_demuxer_select="mpegps_demuxer"
2733 w64_demuxer_select="wav_demuxer"
2734 w64_muxer_select="wav_muxer"
2735 wav_demuxer_select="riffdec"
2736 wav_muxer_select="riffenc"
2737 webm_muxer_select="riffenc"
2738 wtv_demuxer_select="riffdec"
2739 wtv_muxer_select="riffenc"
2740 xmv_demuxer_select="riffdec"
2741 xwma_demuxer_select="riffdec"
2742
2743 # indevs / outdevs
2744 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2745 alsa_outdev_deps="alsa_asoundlib_h"
2746 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2747 avfoundation_indev_select="avfoundation"
2748 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2749 caca_outdev_deps="libcaca"
2750 decklink_outdev_deps="decklink pthreads"
2751 decklink_outdev_extralibs="-lstdc++"
2752 decklink_indev_deps="decklink pthreads"
2753 decklink_indev_extralibs="-lstdc++"
2754 dshow_indev_deps="IBaseFilter"
2755 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2756 dv1394_indev_deps="dv1394"
2757 dv1394_indev_select="dv_demuxer"
2758 fbdev_indev_deps="linux_fb_h"
2759 fbdev_outdev_deps="linux_fb_h"
2760 gdigrab_indev_deps="CreateDIBSection"
2761 gdigrab_indev_extralibs="-lgdi32"
2762 gdigrab_indev_select="bmp_decoder"
2763 iec61883_indev_deps="libiec61883"
2764 jack_indev_deps="jack_jack_h sem_timedwait"
2765 lavfi_indev_deps="avfilter"
2766 libcdio_indev_deps="libcdio"
2767 libdc1394_indev_deps="libdc1394"
2768 libv4l2_indev_deps="libv4l2"
2769 openal_indev_deps="openal"
2770 opengl_outdev_deps="opengl"
2771 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2772 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2773 pulse_indev_deps="libpulse"
2774 pulse_outdev_deps="libpulse"
2775 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2776 qtkit_indev_select="qtkit"
2777 sdl_outdev_deps="sdl"
2778 sndio_indev_deps="sndio_h"
2779 sndio_outdev_deps="sndio_h"
2780 v4l_indev_deps="linux_videodev_h"
2781 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2782 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2783 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2784 vfwcap_indev_extralibs="-lavicap32"
2785 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2786 xv_outdev_extralibs="-lXv -lX11 -lXext"
2787 x11grab_indev_deps="x11grab"
2788 x11grab_xcb_indev_deps="libxcb"
2789
2790 # protocols
2791 async_protocol_deps="threads"
2792 bluray_protocol_deps="libbluray"
2793 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2794 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2795 ffrtmpcrypt_protocol_select="tcp_protocol"
2796 ffrtmphttp_protocol_deps="!librtmp_protocol"
2797 ffrtmphttp_protocol_select="http_protocol"
2798 ftp_protocol_select="tcp_protocol"
2799 gopher_protocol_select="network"
2800 http_protocol_select="tcp_protocol"
2801 httpproxy_protocol_select="tcp_protocol"
2802 https_protocol_select="tls_protocol"
2803 icecast_protocol_select="http_protocol"
2804 librtmp_protocol_deps="librtmp"
2805 librtmpe_protocol_deps="librtmp"
2806 librtmps_protocol_deps="librtmp"
2807 librtmpt_protocol_deps="librtmp"
2808 librtmpte_protocol_deps="librtmp"
2809 libsmbclient_protocol_deps="libsmbclient gplv3"
2810 libssh_protocol_deps="libssh"
2811 mmsh_protocol_select="http_protocol"
2812 mmst_protocol_select="network"
2813 rtmp_protocol_deps="!librtmp_protocol"
2814 rtmp_protocol_select="tcp_protocol"
2815 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2816 rtmps_protocol_deps="!librtmp_protocol"
2817 rtmps_protocol_select="tls_protocol"
2818 rtmpt_protocol_select="ffrtmphttp_protocol"
2819 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2820 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2821 rtp_protocol_select="udp_protocol"
2822 sctp_protocol_deps="struct_sctp_event_subscribe"
2823 sctp_protocol_select="network"
2824 srtp_protocol_select="rtp_protocol"
2825 tcp_protocol_select="network"
2826 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2827 tls_gnutls_protocol_select="tcp_protocol"
2828 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2829 tls_openssl_protocol_select="tcp_protocol"
2830 tls_schannel_protocol_deps="schannel"
2831 tls_schannel_protocol_select="tcp_protocol"
2832 tls_securetransport_protocol_deps="securetransport"
2833 tls_securetransport_protocol_select="tcp_protocol"
2834 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2835 udp_protocol_select="network"
2836 udplite_protocol_select="network"
2837 unix_protocol_deps="sys_un_h"
2838 unix_protocol_select="network"
2839
2840 # filters
2841 amovie_filter_deps="avcodec avformat"
2842 aresample_filter_deps="swresample"
2843 ass_filter_deps="libass"
2844 asyncts_filter_deps="avresample"
2845 atempo_filter_deps="avcodec"
2846 atempo_filter_select="rdft"
2847 azmq_filter_deps="libzmq"
2848 blackframe_filter_deps="gpl"
2849 boxblur_filter_deps="gpl"
2850 bs2b_filter_deps="libbs2b"
2851 colormatrix_filter_deps="gpl"
2852 cover_rect_filter_deps="avcodec avformat gpl"
2853 cropdetect_filter_deps="gpl"
2854 delogo_filter_deps="gpl"
2855 deshake_filter_select="pixelutils"
2856 drawtext_filter_deps="libfreetype"
2857 ebur128_filter_deps="gpl"
2858 eq_filter_deps="gpl"
2859 fftfilt_filter_deps="avcodec"
2860 fftfilt_filter_select="rdft"
2861 flite_filter_deps="libflite"
2862 find_rect_filter_deps="avcodec avformat gpl"
2863 frei0r_filter_deps="frei0r dlopen"
2864 frei0r_src_filter_deps="frei0r dlopen"
2865 fspp_filter_deps="gpl"
2866 geq_filter_deps="gpl"
2867 histeq_filter_deps="gpl"
2868 hqdn3d_filter_deps="gpl"
2869 interlace_filter_deps="gpl"
2870 kerndeint_filter_deps="gpl"
2871 ladspa_filter_deps="ladspa dlopen"
2872 mcdeint_filter_deps="avcodec gpl"
2873 movie_filter_deps="avcodec avformat"
2874 mpdecimate_filter_deps="gpl"
2875 mpdecimate_filter_select="pixelutils"
2876 mptestsrc_filter_deps="gpl"
2877 negate_filter_deps="lut_filter"
2878 perspective_filter_deps="gpl"
2879 pp7_filter_deps="gpl"
2880 ocr_filter_deps="libtesseract"
2881 ocv_filter_deps="libopencv"
2882 owdenoise_filter_deps="gpl"
2883 pan_filter_deps="swresample"
2884 phase_filter_deps="gpl"
2885 pp_filter_deps="gpl postproc"
2886 pullup_filter_deps="gpl"
2887 removelogo_filter_deps="avcodec avformat swscale"
2888 repeatfields_filter_deps="gpl"
2889 resample_filter_deps="avresample"
2890 rubberband_filter_deps="librubberband"
2891 sab_filter_deps="gpl swscale"
2892 scale_filter_deps="swscale"
2893 scale2ref_filter_deps="swscale"
2894 select_filter_select="pixelutils"
2895 smartblur_filter_deps="gpl swscale"
2896 showcqt_filter_deps="avcodec avformat swscale"
2897 showcqt_filter_select="fft"
2898 showfreqs_filter_deps="avcodec"
2899 showfreqs_filter_select="fft"
2900 showspectrum_filter_deps="avcodec"
2901 showspectrum_filter_select="rdft"
2902 sofalizer_filter_deps="netcdf avcodec"
2903 sofalizer_filter_select="fft"
2904 spp_filter_deps="gpl avcodec"
2905 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2906 stereo3d_filter_deps="gpl"
2907 subtitles_filter_deps="avformat avcodec libass"
2908 super2xsai_filter_deps="gpl"
2909 tinterlace_filter_deps="gpl"
2910 vidstabdetect_filter_deps="libvidstab"
2911 vidstabtransform_filter_deps="libvidstab"
2912 pixfmts_super2xsai_test_deps="super2xsai_filter"
2913 tinterlace_merge_test_deps="tinterlace_filter"
2914 tinterlace_pad_test_deps="tinterlace_filter"
2915 uspp_filter_deps="gpl avcodec"
2916 zmq_filter_deps="libzmq"
2917 zoompan_filter_deps="swscale"
2918 zscale_filter_deps="libzimg"
2919
2920 # examples
2921 avio_reading="avformat avcodec avutil"
2922 avio_dir_cmd="avformat avutil"
2923 avcodec_example_deps="avcodec avutil"
2924 decoding_encoding_example_deps="avcodec avformat avutil"
2925 demuxing_decoding_example_deps="avcodec avformat avutil"
2926 extract_mvs_example_deps="avcodec avformat avutil"
2927 filter_audio_example_deps="avfilter avutil"
2928 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2929 filtering_video_example_deps="avfilter avcodec avformat avutil"
2930 metadata_example_deps="avformat avutil"
2931 muxing_example_deps="avcodec avformat avutil swscale"
2932 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2933 remuxing_example_deps="avcodec avformat avutil"
2934 resampling_audio_example_deps="avutil swresample"
2935 scaling_video_example_deps="avutil swscale"
2936 transcode_aac_example_deps="avcodec avformat swresample"
2937 transcoding_example_deps="avfilter avcodec avformat avutil"
2938
2939 # libraries, in linking order
2940 avcodec_deps="avutil"
2941 avdevice_deps="avformat avcodec avutil"
2942 avfilter_deps="avutil"
2943 avformat_deps="avcodec avutil"
2944 avresample_deps="avutil"
2945 postproc_deps="avutil gpl"
2946 swresample_deps="avutil"
2947 swscale_deps="avutil"
2948
2949 # programs
2950 ffmpeg_deps="avcodec avfilter avformat swresample"
2951 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2952                null_filter
2953                setpts_filter trim_filter"
2954 ffplay_deps="avcodec avformat swscale swresample sdl"
2955 ffplay_libs='$sdl_libs'
2956 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2957 ffprobe_deps="avcodec avformat"
2958 ffserver_deps="avformat fork sarestart"
2959 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2960
2961 # documentation
2962 podpages_deps="perl"
2963 manpages_deps="perl pod2man"
2964 htmlpages_deps="perl"
2965 htmlpages_deps_any="makeinfo_html texi2html"
2966 txtpages_deps="perl makeinfo"
2967 doc_deps_any="manpages htmlpages podpages txtpages"
2968
2969 # default parameters
2970
2971 logfile="config.log"
2972
2973 # installation paths
2974 prefix_default="/usr/local"
2975 bindir_default='${prefix}/bin'
2976 datadir_default='${prefix}/share/ffmpeg'
2977 docdir_default='${prefix}/share/doc/ffmpeg'
2978 incdir_default='${prefix}/include'
2979 libdir_default='${prefix}/lib'
2980 mandir_default='${prefix}/share/man'
2981
2982 # toolchain
2983 ar_default="ar"
2984 cc_default="gcc"
2985 cxx_default="g++"
2986 host_cc_default="gcc"
2987 cp_f="cp -f"
2988 doxygen_default="doxygen"
2989 install="install"
2990 ln_s="ln -s -f"
2991 nm_default="nm -g"
2992 objformat="elf"
2993 pkg_config_default=pkg-config
2994 ranlib_default="ranlib"
2995 strip_default="strip"
2996 yasmexe_default="yasm"
2997 windres_default="windres"
2998
2999 # OS
3000 target_os_default=$(tolower $(uname -s))
3001 host_os=$target_os_default
3002
3003 # machine
3004 if test "$target_os_default" = aix; then
3005     arch_default=$(uname -p)
3006     strip_default="strip -X32_64"
3007 else
3008     arch_default=$(uname -m)
3009 fi
3010 cpu="generic"
3011 intrinsics="none"
3012
3013 # configurable options
3014 enable $PROGRAM_LIST
3015 enable $DOCUMENT_LIST
3016 enable $EXAMPLE_LIST
3017 enable $(filter_out avresample $LIBRARY_LIST)
3018 enable stripping
3019
3020 enable asm
3021 enable debug
3022 enable doc
3023 enable faan faandct faanidct
3024 enable optimizations
3025 enable runtime_cpudetect
3026 enable safe_bitstream_reader
3027 enable static
3028 enable swscale_alpha
3029 enable valgrind_backtrace
3030
3031 sws_max_filter_size_default=256
3032 set_default sws_max_filter_size
3033
3034 # Enable hwaccels by default.
3035 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3036 enable xlib
3037
3038 # build settings
3039 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3040 LIBPREF="lib"
3041 LIBSUF=".a"
3042 FULLNAME='$(NAME)$(BUILDSUF)'
3043 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3044 SLIBPREF="lib"
3045 SLIBSUF=".so"
3046 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3047 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3048 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3049 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3050 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3051 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3052
3053 asflags_filter=echo
3054 cflags_filter=echo
3055 ldflags_filter=echo
3056
3057 AS_C='-c'
3058 AS_O='-o $@'
3059 CC_C='-c'
3060 CC_E='-E -o $@'
3061 CC_O='-o $@'
3062 CXX_C='-c'
3063 CXX_O='-o $@'
3064 OBJCC_C='-c'
3065 OBJCC_E='-E -o $@'
3066 OBJCC_O='-o $@'
3067 LD_O='-o $@'
3068 LD_LIB='-l%'
3069 LD_PATH='-L'
3070 HOSTCC_C='-c'
3071 HOSTCC_E='-E -o $@'
3072 HOSTCC_O='-o $@'
3073 HOSTLD_O='-o $@'
3074
3075 host_libs='-lm'
3076 host_cflags_filter=echo
3077 host_ldflags_filter=echo
3078
3079 target_path='$(CURDIR)'
3080
3081 # since the object filename is not given with the -MM flag, the compiler
3082 # is only able to print the basename, and we must add the path ourselves
3083 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3084 DEPFLAGS='-MM'
3085
3086 # find source path
3087 if test -f configure; then
3088     source_path=.
3089 else
3090     source_path=$(cd $(dirname "$0"); pwd)
3091     case "$source_path" in
3092         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3093     esac
3094     test -e "$source_path/config.h" &&
3095         die "Out of tree builds are impossible with config.h in source dir."
3096 fi
3097
3098 for v in "$@"; do
3099     r=${v#*=}
3100     l=${v%"$r"}
3101     r=$(sh_quote "$r")
3102     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3103 done
3104
3105 find_things(){
3106     thing=$1
3107     pattern=$2
3108     file=$source_path/$3
3109     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3110 }
3111
3112 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3113 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3114 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3115 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3116 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3117 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3118 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3119 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3120 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3121 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3122 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3123
3124 ALL_COMPONENTS="
3125     $BSF_LIST
3126     $DECODER_LIST
3127     $DEMUXER_LIST
3128     $ENCODER_LIST
3129     $FILTER_LIST
3130     $HWACCEL_LIST
3131     $INDEV_LIST
3132     $MUXER_LIST
3133     $OUTDEV_LIST
3134     $PARSER_LIST
3135     $PROTOCOL_LIST
3136 "
3137
3138 for n in $COMPONENT_LIST; do
3139     v=$(toupper ${n%s})_LIST
3140     eval enable \$$v
3141     eval ${n}_if_any="\$$v"
3142 done
3143
3144 enable $ARCH_EXT_LIST
3145
3146 die_unknown(){
3147     echo "Unknown option \"$1\"."
3148     echo "See $0 --help for available options."
3149     exit 1
3150 }
3151
3152 print_in_columns() {
3153     cols=$(expr $ncols / 24)
3154     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3155 }
3156
3157 show_list() {
3158     suffix=_$1
3159     shift
3160     echo $* | sed s/$suffix//g | print_in_columns
3161     exit 0
3162 }
3163
3164 rand_list(){
3165     IFS=', '
3166     set -- $*
3167     unset IFS
3168     for thing; do
3169         comp=${thing%:*}
3170         prob=${thing#$comp}
3171         prob=${prob#:}
3172         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3173         echo "prob ${prob:-0.5}"
3174         printf '%s\n' $comp
3175     done
3176 }
3177
3178 do_random(){
3179     action=$1
3180     shift
3181     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3182     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3183 }
3184
3185 for opt do
3186     optval="${opt#*=}"
3187     case "$opt" in
3188         --extra-ldflags=*)
3189             add_ldflags $optval
3190         ;;
3191         --extra-ldexeflags=*)
3192             add_ldexeflags $optval
3193         ;;
3194         --extra-ldlibflags=*)
3195             add_ldlibflags $optval
3196         ;;
3197         --extra-libs=*)
3198             add_extralibs $optval
3199         ;;
3200         --disable-devices)
3201             disable $INDEV_LIST $OUTDEV_LIST
3202         ;;
3203         --enable-debug=*)
3204             debuglevel="$optval"
3205         ;;
3206         --disable-programs)
3207             disable $PROGRAM_LIST
3208         ;;
3209         --disable-everything)
3210             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3211         ;;
3212         --disable-all)
3213             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3214             disable $LIBRARY_LIST $PROGRAM_LIST doc
3215             enable avutil
3216         ;;
3217         --enable-random|--disable-random)
3218             action=${opt%%-random}
3219             do_random ${action#--} $COMPONENT_LIST
3220         ;;
3221         --enable-random=*|--disable-random=*)
3222             action=${opt%%-random=*}
3223             do_random ${action#--} $optval
3224         ;;
3225         --enable-*=*|--disable-*=*)
3226             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3227             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3228             eval list=\$$(toupper $thing)_LIST
3229             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3230             list=$(filter "$name" $list)
3231             [ "$list" = "" ] && warn "Option $opt did not match anything"
3232             $action $list
3233         ;;
3234         --enable-?*|--disable-?*)
3235             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3236             if is_in $option $COMPONENT_LIST; then
3237                 test $action = disable && action=unset
3238                 eval $action \$$(toupper ${option%s})_LIST
3239             elif is_in $option $CMDLINE_SELECT; then
3240                 $action $option
3241             else
3242                 die_unknown $opt
3243             fi
3244         ;;
3245         --list-*)
3246             NAME="${opt#--list-}"
3247             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3248             NAME=${NAME%s}
3249             eval show_list $NAME \$$(toupper $NAME)_LIST
3250         ;;
3251         --help|-h) show_help
3252         ;;
3253         --fatal-warnings) enable fatal_warnings
3254         ;;
3255         *)
3256             optname="${opt%%=*}"
3257             optname="${optname#--}"
3258             optname=$(echo "$optname" | sed 's/-/_/g')
3259             if is_in $optname $CMDLINE_SET; then
3260                 eval $optname='$optval'
3261             elif is_in $optname $CMDLINE_APPEND; then
3262                 append $optname "$optval"
3263             else
3264                 die_unknown $opt
3265             fi
3266         ;;
3267     esac
3268 done
3269
3270 for e in $env; do
3271     eval "export $e"
3272 done
3273
3274 disabled logging && logfile=/dev/null
3275
3276 # Disable all the library-specific components if the library itself
3277 # is disabled, see AVCODEC_LIST and following _LIST variables.
3278
3279 disable_components(){
3280     disabled ${1} && disable $(
3281         eval components="\$$(toupper ${1})_COMPONENTS"
3282         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3283     )
3284 }
3285
3286 map 'disable_components $v' $LIBRARY_LIST
3287
3288 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3289 set >> $logfile
3290
3291 test -n "$valgrind" && toolchain="valgrind-memcheck"
3292
3293 case "$toolchain" in
3294     clang-asan)
3295         cc_default="clang"
3296         add_cflags  -fsanitize=address
3297         add_ldflags -fsanitize=address
3298     ;;
3299     clang-tsan)
3300         cc_default="clang"
3301         add_cflags  -fsanitize=thread -pie
3302         add_ldflags -fsanitize=thread -pie
3303     ;;
3304     clang-usan)
3305         cc_default="clang"
3306         add_cflags  -fsanitize=undefined
3307         add_ldflags -fsanitize=undefined
3308     ;;
3309     gcc-asan)
3310         cc_default="gcc"
3311         add_cflags  -fsanitize=address
3312         add_ldflags -fsanitize=address
3313     ;;
3314     gcc-tsan)
3315         cc_default="gcc"
3316         add_cflags  -fsanitize=thread -pie -fPIC
3317         add_ldflags -fsanitize=thread -pie -fPIC
3318     ;;
3319     gcc-usan)
3320         cc_default="gcc"
3321         add_cflags  -fsanitize=undefined
3322         add_ldflags -fsanitize=undefined
3323     ;;
3324     valgrind-massif)
3325         target_exec_default=${valgrind:-"valgrind"}
3326         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"
3327     ;;
3328     valgrind-memcheck)
3329         target_exec_default=${valgrind:-"valgrind"}
3330         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3331     ;;
3332     msvc)
3333         # Check whether the current MSVC version needs the C99 converter.
3334         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3335         # support enough of C99 to build ffmpeg. Default to the new
3336         # behaviour if the regexp was unable to match anything, since this
3337         # successfully parses the version number of existing supported
3338         # versions that require the converter (MSVC 2010 and 2012).
3339         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3340         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3341             cc_default="cl"
3342         else
3343             cc_default="c99wrap cl"
3344         fi
3345         ld_default="$source_path/compat/windows/mslink"
3346         nm_default="dumpbin -symbols"
3347         ar_default="lib"
3348         case "$arch" in
3349         arm*)
3350             as_default="armasm"
3351             ;;
3352         esac
3353         target_os_default="win32"
3354         # Use a relative path for TMPDIR. This makes sure all the
3355         # ffconf temp files are written with a relative path, avoiding
3356         # issues with msys/win32 path conversion for MSVC parameters
3357         # such as -Fo<file> or -out:<file>.
3358         TMPDIR=.
3359     ;;
3360     icl)
3361         cc_default="icl"
3362         ld_default="xilink"
3363         nm_default="dumpbin -symbols"
3364         ar_default="xilib"
3365         target_os_default="win32"
3366         TMPDIR=.
3367     ;;
3368     gcov)
3369         add_cflags  -fprofile-arcs -ftest-coverage
3370         add_ldflags -fprofile-arcs -ftest-coverage
3371     ;;
3372     hardened)
3373         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3374         add_cflags   -fno-strict-overflow -fstack-protector-all
3375         add_ldflags  -Wl,-z,relro -Wl,-z,now
3376     ;;
3377     ?*)
3378         die "Unknown toolchain $toolchain"
3379     ;;
3380 esac
3381
3382 test -n "$cross_prefix" && enable cross_compile
3383
3384 if enabled cross_compile; then
3385     test -n "$arch" && test -n "$target_os" ||
3386         die "Must specify target arch and OS when cross-compiling"
3387 fi
3388
3389 ar_default="${cross_prefix}${ar_default}"
3390 cc_default="${cross_prefix}${cc_default}"
3391 cxx_default="${cross_prefix}${cxx_default}"
3392 nm_default="${cross_prefix}${nm_default}"
3393 pkg_config_default="${cross_prefix}${pkg_config_default}"
3394 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3395     ranlib_default="${cross_prefix}${ranlib_default} -D"
3396 else
3397     ranlib_default="${cross_prefix}${ranlib_default}"
3398 fi
3399 strip_default="${cross_prefix}${strip_default}"
3400 windres_default="${cross_prefix}${windres_default}"
3401
3402 sysinclude_default="${sysroot}/usr/include"
3403
3404 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3405     target_exec target_os yasmexe
3406 enabled cross_compile || host_cc_default=$cc
3407 set_default host_cc
3408
3409 pkg_config_fail_message=""
3410 if ! $pkg_config --version >/dev/null 2>&1; then
3411     warn "$pkg_config not found, library detection may fail."
3412     pkg_config=false
3413 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3414     pkg_config_fail_message="
3415 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3416 fi
3417
3418 if test $doxygen != $doxygen_default && \
3419   ! $doxygen --version >/dev/null 2>&1; then
3420     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3421 fi
3422
3423 exesuf() {
3424     case $1 in
3425         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3426     esac
3427 }
3428
3429 EXESUF=$(exesuf $target_os)
3430 HOSTEXESUF=$(exesuf $host_os)
3431
3432 # set temporary file name
3433 : ${TMPDIR:=$TEMPDIR}
3434 : ${TMPDIR:=$TMP}
3435 : ${TMPDIR:=/tmp}
3436
3437 if [ -n "$tempprefix" ] ; then
3438     mktemp(){
3439         echo $tempprefix.${HOSTNAME}.${UID}
3440     }
3441 elif ! check_cmd mktemp -u XXXXXX; then
3442     # simple replacement for missing mktemp
3443     # NOT SAFE FOR GENERAL USE
3444     mktemp(){
3445         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3446     }
3447 fi
3448
3449 tmpfile(){
3450     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3451         (set -C; exec > $tmp) 2>/dev/null ||
3452         die "Unable to create temporary file in $TMPDIR."
3453     append TMPFILES $tmp
3454     eval $1=$tmp
3455 }
3456
3457 trap 'rm -f -- $TMPFILES' EXIT
3458
3459 tmpfile TMPASM .asm
3460 tmpfile TMPC   .c
3461 tmpfile TMPCPP .cpp
3462 tmpfile TMPE   $EXESUF
3463 tmpfile TMPH   .h
3464 tmpfile TMPM   .m
3465 tmpfile TMPO   .o
3466 tmpfile TMPS   .S
3467 tmpfile TMPSH  .sh
3468 tmpfile TMPV   .ver
3469
3470 unset -f mktemp
3471
3472 chmod +x $TMPE
3473
3474 # make sure we can execute files in $TMPDIR
3475 cat > $TMPSH 2>> $logfile <<EOF
3476 #! /bin/sh
3477 EOF
3478 chmod +x $TMPSH >> $logfile 2>&1
3479 if ! $TMPSH >> $logfile 2>&1; then
3480     cat <<EOF
3481 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3482 variable to another directory and make sure that it is not mounted noexec.
3483 EOF
3484     die "Sanity test failed."
3485 fi
3486
3487 armasm_flags(){
3488     for flag; do
3489         case $flag in
3490             # Filter out MSVC cl.exe options from cflags that shouldn't
3491             # be passed to gas-preprocessor
3492             -M[TD]*)                                            ;;
3493             *)                  echo $flag                      ;;
3494         esac
3495    done
3496 }
3497
3498 ccc_flags(){
3499     for flag; do
3500         case $flag in
3501             -std=c99)           echo -c99                       ;;
3502             -mcpu=*)            echo -arch ${flag#*=}           ;;
3503             -mieee)             echo -ieee                      ;;
3504             -O*|-fast)          echo $flag                      ;;
3505             -fno-math-errno)    echo -assume nomath_errno       ;;
3506             -g)                 echo -g3                        ;;
3507             -Wall)              echo -msg_enable level2         ;;
3508             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3509             -Wl,*)              echo $flag                      ;;
3510             -f*|-W*)                                            ;;
3511             *)                  echo $flag                      ;;
3512         esac
3513    done
3514 }
3515
3516 cparser_flags(){
3517     for flag; do
3518         case $flag in
3519             -Wno-switch)             echo -Wno-switch-enum ;;
3520             -Wno-format-zero-length) ;;
3521             -Wdisabled-optimization) ;;
3522             -Wno-pointer-sign)       echo -Wno-other ;;
3523             *)                       echo $flag ;;
3524         esac
3525     done
3526 }
3527
3528 msvc_common_flags(){
3529     for flag; do
3530         case $flag in
3531             # In addition to specifying certain flags under the compiler
3532             # specific filters, they must be specified here as well or else the
3533             # generic catch all at the bottom will print the original flag.
3534             -Wall)                ;;
3535             -std=c99)             ;;
3536             # Common flags
3537             -fomit-frame-pointer) ;;
3538             -g)                   echo -Z7 ;;
3539             -fno-math-errno)      ;;
3540             -fno-common)          ;;
3541             -fno-signed-zeros)    ;;
3542             -fPIC)                ;;
3543             -mthumb)              ;;
3544             -march=*)             ;;
3545             -lz)                  echo zlib.lib ;;
3546             -lavifil32)           echo vfw32.lib ;;
3547             -lavicap32)           echo vfw32.lib user32.lib ;;
3548             -l*)                  echo ${flag#-l}.lib ;;
3549             -LARGEADDRESSAWARE)   echo $flag ;;
3550             -L*)                  echo -libpath:${flag#-L} ;;
3551             *)                    echo $flag ;;
3552         esac
3553     done
3554 }
3555
3556 msvc_flags(){
3557     msvc_common_flags "$@"
3558     for flag; do
3559         case $flag in
3560             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3561                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3562                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3563                                        -wd4307 \
3564                                        -wd4273 -wd4554 -wd4701 ;;
3565         esac
3566     done
3567 }
3568
3569 icl_flags(){
3570     msvc_common_flags "$@"
3571     for flag; do
3572         case $flag in
3573             # Despite what Intel's documentation says -Wall, which is supported
3574             # on Windows, does enable remarks so disable them here.
3575             -Wall)                echo $flag -Qdiag-disable:remark ;;
3576             -std=c99)             echo -Qstd=c99 ;;
3577             -flto)                echo -ipo ;;
3578         esac
3579     done
3580 }
3581
3582 icc_flags(){
3583     for flag; do
3584         case $flag in
3585             -flto)                echo -ipo ;;
3586             *)                    echo $flag ;;
3587         esac
3588     done
3589 }
3590
3591 pgi_flags(){
3592     for flag; do
3593         case $flag in
3594             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3595             -fomit-frame-pointer) echo -Mnoframe ;;
3596             -g)                   echo -gopt ;;
3597             *)                    echo $flag ;;
3598         esac
3599     done
3600 }
3601
3602 suncc_flags(){
3603     for flag; do
3604         case $flag in
3605             -march=*|-mcpu=*)
3606                 case "${flag#*=}" in
3607                     native)                   echo -xtarget=native       ;;
3608                     v9|niagara)               echo -xarch=sparc          ;;
3609                     ultrasparc)               echo -xarch=sparcvis       ;;
3610                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3611                     i586|pentium)             echo -xchip=pentium        ;;
3612                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3613                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3614                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3615                     pentium4*)          echo -xtarget=pentium4           ;;
3616                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3617                     *-sse3)             echo -xarch=sse3                 ;;
3618                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3619                     bonnell)                   echo -xarch=ssse3         ;;
3620                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3621                     westmere)                  echo -xtarget=westmere    ;;
3622                     silvermont)                echo -xarch=sse4_2        ;;
3623                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3624                     core-avx*|ivybridge|haswell|broadwell)
3625                                                echo -xarch=avx           ;;
3626                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3627                     btver1)                    echo -xarch=amdsse4a      ;;
3628                     btver2|bdver*)             echo -xarch=avx           ;;
3629                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3630                     k8|opteron|athlon64|athlon-fx)
3631                                                echo -xarch=sse2a         ;;
3632                     athlon*)                   echo -xarch=pentium_proa  ;;
3633                 esac
3634                 ;;
3635             -std=c99)             echo -xc99              ;;
3636             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3637             -fPIC)                echo -KPIC -xcode=pic32 ;;
3638             -W*,*)                echo $flag              ;;
3639             -f*-*|-W*|-mimpure-text)                      ;;
3640             -shared)              echo -G                 ;;
3641             *)                    echo $flag              ;;
3642         esac
3643     done
3644 }
3645
3646 tms470_flags(){
3647     for flag; do
3648         case $flag in
3649             -march=*|-mcpu=*)
3650                 case "${flag#*=}" in
3651                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3652                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3653                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3654                     armv6*|arm11*)          echo -mv=6   ;;
3655                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3656                                             echo -mv=5e  ;;
3657                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3658                 esac
3659                 ;;
3660             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3661             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3662             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3663             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3664             -msoft-float)   echo --float_support=vfplib       ;;
3665             -O[0-3]|-mf=*)  echo $flag                        ;;
3666             -g)             echo -g -mn                       ;;
3667             -pds=*)         echo $flag                        ;;
3668             -D*|-I*)        echo $flag                        ;;
3669             --gcc|--abi=*)  echo $flag                        ;;
3670             -me)            echo $flag                        ;;
3671         esac
3672     done
3673 }
3674
3675 probe_cc(){
3676     pfx=$1
3677     _cc=$2
3678     first=$3
3679
3680     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3681     unset _ld_o _ldflags _ld_lib _ld_path
3682     unset _depflags _DEPCMD _DEPFLAGS
3683     _flags_filter=echo
3684
3685     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3686         true # no-op to avoid reading stdin in following checks
3687     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3688         _type=llvm_gcc
3689         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3690         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3691         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3692         _cflags_speed='-O3'
3693         _cflags_size='-Os'
3694     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3695         _type=gcc
3696         gcc_version=$($_cc --version | head -n1)
3697         gcc_basever=$($_cc -dumpversion)
3698         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3699         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3700         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3701         case $gcc_basever in
3702             2*) ;;
3703             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3704         esac
3705         if [ "$first" = true ]; then
3706             case $gcc_basever in
3707                 4.2*)
3708                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3709             esac
3710         fi
3711         _cflags_speed='-O3'
3712         _cflags_size='-Os'
3713     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3714         _type=icc
3715         _ident=$($_cc --version | head -n1)
3716         _depflags='-MMD'
3717         _cflags_speed='-O3'
3718         _cflags_size='-Os'
3719         _cflags_noopt='-O1'
3720         _flags_filter=icc_flags
3721     elif $_cc -v 2>&1 | grep -q xlc; then
3722         _type=xlc
3723         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3724         _cflags_speed='-O5'
3725         _cflags_size='-O5 -qcompact'
3726     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3727         _type=ccc
3728         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3729         _DEPFLAGS='-M'
3730         _cflags_speed='-fast'
3731         _cflags_size='-O1'
3732         _flags_filter=ccc_flags
3733     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3734         test -d "$sysroot" || die "No valid sysroot specified."
3735         _type=armcc
3736         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3737         armcc_conf="$PWD/armcc.conf"
3738         $_cc --arm_linux_configure                 \
3739              --arm_linux_config_file="$armcc_conf" \
3740              --configure_sysroot="$sysroot"        \
3741              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3742              die "Error creating armcc configuration file."
3743         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3744         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3745         as_default="${cross_prefix}gcc"
3746         _depflags='-MMD'
3747         _cflags_speed='-O3'
3748         _cflags_size='-Os'
3749     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3750         _type=tms470
3751         _ident=$($_cc -version | head -n1 | tr -s ' ')
3752         _flags='--gcc --abi=eabi -me'
3753         _cc_e='-ppl -fe=$@'
3754         _cc_o='-fe=$@'
3755         _depflags='-ppa -ppd=$(@:.o=.d)'
3756         _cflags_speed='-O3 -mf=5'
3757         _cflags_size='-O3 -mf=2'
3758         _flags_filter=tms470_flags
3759     elif $_cc -v 2>&1 | grep -q clang; then
3760         _type=clang
3761         _ident=$($_cc --version 2>/dev/null | head -n1)
3762         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3763         _cflags_speed='-O3'
3764         _cflags_size='-Os'
3765     elif $_cc -V 2>&1 | grep -q Sun; then
3766         _type=suncc
3767         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3768         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3769         _DEPFLAGS='-xM1 -xc99'
3770         _ldflags='-std=c99'
3771         _cflags_speed='-O5'
3772         _cflags_size='-O5 -xspace'
3773         _flags_filter=suncc_flags
3774     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3775         _type=pathscale
3776         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3777         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3778         _cflags_speed='-O2'
3779         _cflags_size='-Os'
3780         _flags_filter='filter_out -Wdisabled-optimization'
3781     elif $_cc -v 2>&1 | grep -q Open64; then
3782         _type=open64
3783         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3784         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3785         _cflags_speed='-O2'
3786         _cflags_size='-Os'
3787         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3788     elif $_cc -V 2>&1 | grep -q Portland; then
3789         _type=pgi
3790         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3791         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3792         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3793         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3794         _cflags_noopt="-O"
3795         _flags_filter=pgi_flags
3796     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3797         _type=armasm
3798         _ident=$($_cc | head -n1)
3799         # 4509: "This form of conditional instruction is deprecated"
3800         _flags="-nologo -ignore 4509"
3801         _flags_filter=armasm_flags
3802     elif $_cc 2>&1 | grep -q Intel; then
3803         _type=icl
3804         _ident=$($_cc 2>&1 | head -n1)
3805         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3806         # Not only is O3 broken on 13.x+ but it is slower on all previous
3807         # versions (tested) as well.
3808         _cflags_speed="-O2"
3809         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3810         if $_cc 2>&1 | grep -q Linker; then
3811             _ld_o='-out:$@'
3812         else
3813             _ld_o='-Fe$@'
3814         fi
3815         _cc_o='-Fo$@'
3816         _cc_e='-P'
3817         _flags_filter=icl_flags
3818         _ld_lib='lib%.a'
3819         _ld_path='-libpath:'
3820         # -Qdiag-error to make icl error when seeing certain unknown arguments
3821         _flags='-nologo -Qdiag-error:4044,10157'
3822         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3823         # with MSVC which enables it by default.
3824         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3825         disable stripping
3826     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3827         _type=msvc
3828         _ident=$($_cc 2>&1 | head -n1)
3829         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3830         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3831         _cflags_speed="-O2"
3832         _cflags_size="-O1"
3833         if $_cc -nologo- 2>&1 | grep -q Linker; then
3834             _ld_o='-out:$@'
3835         else
3836             _ld_o='-Fe$@'
3837         fi
3838         _cc_o='-Fo$@'
3839         _cc_e='-P -Fi$@'
3840         _flags_filter=msvc_flags
3841         _ld_lib='lib%.a'
3842         _ld_path='-libpath:'
3843         _flags='-nologo'
3844         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3845         disable stripping
3846     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3847         _type=cparser
3848         _ident=$($_cc --version | head -n1)
3849         _depflags='-MMD'
3850         _cflags_speed='-O4'
3851         _cflags_size='-O2'
3852         _flags_filter=cparser_flags
3853     fi
3854
3855     eval ${pfx}_type=\$_type
3856     eval ${pfx}_ident=\$_ident
3857 }
3858
3859 set_ccvars(){
3860     eval ${1}_C=\${_cc_c-\${${1}_C}}
3861     eval ${1}_E=\${_cc_e-\${${1}_E}}
3862     eval ${1}_O=\${_cc_o-\${${1}_O}}
3863
3864     if [ -n "$_depflags" ]; then
3865         eval ${1}_DEPFLAGS=\$_depflags
3866     else
3867         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3868         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3869         eval DEP${1}FLAGS=\$_flags
3870     fi
3871 }
3872
3873 probe_cc cc "$cc" "true"
3874 cflags_filter=$_flags_filter
3875 cflags_speed=$_cflags_speed
3876 cflags_size=$_cflags_size
3877 cflags_noopt=$_cflags_noopt
3878 add_cflags $_flags $_cflags
3879 cc_ldflags=$_ldflags
3880 set_ccvars CC
3881
3882 probe_cc hostcc "$host_cc"
3883 host_cflags_filter=$_flags_filter
3884 add_host_cflags  $_flags $_cflags
3885 set_ccvars HOSTCC
3886
3887 test -n "$cc_type" && enable $cc_type ||
3888     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3889
3890 : ${as_default:=$cc}
3891 : ${objcc_default:=$cc}
3892 : ${dep_cc_default:=$cc}
3893 : ${ld_default:=$cc}
3894 : ${host_ld_default:=$host_cc}
3895 set_default ar as objcc dep_cc ld host_ld windres
3896
3897 probe_cc as "$as"
3898 asflags_filter=$_flags_filter
3899 add_asflags $_flags $_cflags
3900 set_ccvars AS
3901
3902 probe_cc objcc "$objcc"
3903 objcflags_filter=$_flags_filter
3904 add_objcflags $_flags $_cflags
3905 set_ccvars OBJC
3906
3907 probe_cc ld "$ld"
3908 ldflags_filter=$_flags_filter
3909 add_ldflags $_flags $_ldflags
3910 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3911 LD_O=${_ld_o-$LD_O}
3912 LD_LIB=${_ld_lib-$LD_LIB}
3913 LD_PATH=${_ld_path-$LD_PATH}
3914
3915 probe_cc hostld "$host_ld"
3916 host_ldflags_filter=$_flags_filter
3917 add_host_ldflags $_flags $_ldflags
3918 HOSTLD_O=${_ld_o-$HOSTLD_O}
3919
3920 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3921     probe_cc depcc "$dep_cc"
3922     CCDEP=${_DEPCMD:-$DEPCMD}
3923     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3924     DEPCCFLAGS=$_flags
3925 fi
3926
3927 if $ar 2>&1 | grep -q Microsoft; then
3928     arflags="-nologo"
3929     ar_o='-out:$@'
3930 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3931     arflags="rq"
3932     ar_o='$@'
3933 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3934     arflags='-Xany -r -c'
3935     ar_o='$@'
3936 elif $ar 2>&1 | grep -q "\[D\] "; then
3937     arflags="rcD"
3938     ar_o='$@'
3939 else
3940     arflags="rc"
3941     ar_o='$@'
3942 fi
3943
3944 add_cflags $extra_cflags
3945 add_cxxflags $extra_cxxflags
3946 add_objcflags $extra_objcflags
3947 add_asflags $extra_cflags
3948
3949 if test -n "$sysroot"; then
3950     case "$cc_type" in
3951         gcc|llvm_gcc|clang)
3952             add_cppflags --sysroot="$sysroot"
3953             add_ldflags --sysroot="$sysroot"
3954 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3955             add_cppflags -isysroot "$sysroot"
3956             add_ldflags -isysroot "$sysroot"
3957         ;;
3958         tms470)
3959             add_cppflags -I"$sysinclude"
3960             add_ldflags  --sysroot="$sysroot"
3961         ;;
3962     esac
3963 fi
3964
3965 if test "$cpu" = host; then
3966     enabled cross_compile &&
3967         die "--cpu=host makes no sense when cross-compiling."
3968
3969     case "$cc_type" in
3970         gcc|llvm_gcc)
3971             check_native(){
3972                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3973                 sed -n "/cc1.*$1=/{
3974                             s/.*$1=\\([^ ]*\\).*/\\1/
3975                             p
3976                             q
3977                         }" $TMPE
3978             }
3979             cpu=$(check_native -march || check_native -mcpu)
3980         ;;
3981     esac
3982
3983     test "${cpu:-host}" = host &&
3984         die "--cpu=host not supported with compiler $cc"
3985 fi
3986
3987 # Deal with common $arch aliases
3988 case "$arch" in
3989     aarch64|arm64)
3990         arch="aarch64"
3991     ;;
3992     arm*|iPad*|iPhone*)
3993         arch="arm"
3994     ;;
3995     mips*|IP*)
3996         arch="mips"
3997     ;;
3998     parisc*|hppa*)
3999         arch="parisc"
4000     ;;
4001     "Power Macintosh"|ppc*|powerpc*)
4002         arch="ppc"
4003     ;;
4004     s390|s390x)
4005         arch="s390"
4006     ;;
4007     sh4|sh)
4008         arch="sh4"
4009     ;;
4010     sun4u|sparc*)
4011         arch="sparc"
4012     ;;
4013     tilegx|tile-gx)
4014         arch="tilegx"
4015     ;;
4016     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4017         arch="x86"
4018     ;;
4019 esac
4020
4021 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4022 enable $arch
4023
4024 # Add processor-specific flags
4025 if enabled aarch64; then
4026
4027     case $cpu in
4028         armv*)
4029             cpuflags="-march=$cpu"
4030         ;;
4031         *)
4032             cpuflags="-mcpu=$cpu"
4033         ;;
4034     esac
4035
4036 elif enabled alpha; then
4037
4038     cpuflags="-mcpu=$cpu"
4039
4040 elif enabled arm; then
4041
4042     check_arm_arch() {
4043         check_cpp_condition stddef.h \
4044             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4045             $cpuflags
4046     }
4047
4048     probe_arm_arch() {
4049         if   check_arm_arch 4;        then echo armv4;
4050         elif check_arm_arch 4T;       then echo armv4t;
4051         elif check_arm_arch 5;        then echo armv5;
4052         elif check_arm_arch 5E;       then echo armv5e;
4053         elif check_arm_arch 5T;       then echo armv5t;
4054         elif check_arm_arch 5TE;      then echo armv5te;
4055         elif check_arm_arch 5TEJ;     then echo armv5te;
4056         elif check_arm_arch 6;        then echo armv6;
4057         elif check_arm_arch 6J;       then echo armv6j;
4058         elif check_arm_arch 6K;       then echo armv6k;
4059         elif check_arm_arch 6Z;       then echo armv6z;
4060         elif check_arm_arch 6ZK;      then echo armv6zk;
4061         elif check_arm_arch 6T2;      then echo armv6t2;
4062         elif check_arm_arch 7;        then echo armv7;
4063         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4064         elif check_arm_arch 7S;       then echo armv7-a;
4065         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4066         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4067         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4068         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4069         fi
4070     }
4071
4072     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4073
4074     case $cpu in
4075         armv*)
4076             cpuflags="-march=$cpu"
4077             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4078         ;;
4079         *)
4080             cpuflags="-mcpu=$cpu"
4081             case $cpu in
4082                 cortex-a*)                               subarch=armv7a  ;;
4083                 cortex-r*)                               subarch=armv7r  ;;
4084                 cortex-m*)                 enable thumb; subarch=armv7m  ;;