configure: Don't require nonfree for nvenc
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
112   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Hardware accelerators:
153   --disable-d3d11va        disable D3D11VA code [autodetect]
154   --disable-dxva2          disable DXVA2 code [autodetect]
155   --disable-vaapi          disable VAAPI code [autodetect]
156   --disable-vda            disable VDA code [autodetect]
157   --disable-vdpau          disable VDPAU 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   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
198   --enable-avisynth        enable reading of AviSynth script files [no]
199   --disable-bzlib          disable bzlib [autodetect]
200   --enable-cuda            enable dynamically linked CUDA [no]
201   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
202   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
203   --enable-frei0r          enable frei0r video filtering [no]
204   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
205                            if openssl, librtmp or gmp is not used [no]
206   --enable-gmp             enable gmp, needed for rtmp(t)e support
207                            if openssl or librtmp is not used [no]
208   --enable-gnutls          enable gnutls, needed for https support
209                            if openssl is not used [no]
210   --disable-iconv          disable iconv [autodetect]
211   --enable-jni             enable JNI support [no]
212   --enable-ladspa          enable LADSPA audio filtering [no]
213   --enable-libass          enable libass subtitles rendering,
214                            needed for subtitles and ass filter [no]
215   --enable-libbluray       enable BluRay reading using libbluray [no]
216   --enable-libbs2b         enable bs2b DSP library [no]
217   --enable-libcaca         enable textual display using libcaca [no]
218   --enable-libcelt         enable CELT decoding via libcelt [no]
219   --enable-libcdio         enable audio CD grabbing with libcdio [no]
220   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
221                            and libraw1394 [no]
222   --enable-libfaac         enable AAC encoding via libfaac [no]
223   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
224   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
225   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
226   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
227   --enable-libgme          enable Game Music Emu via libgme [no]
228   --enable-libgsm          enable GSM de/encoding via libgsm [no]
229   --enable-libiec61883     enable iec61883 via libiec61883 [no]
230   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
231   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
232   --enable-libmfx          enable HW acceleration through libmfx
233   --enable-libmodplug      enable ModPlug via libmodplug [no]
234   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
235   --enable-libnut          enable NUT (de)muxing via libnut,
236                            native (de)muxer exists [no]
237   --enable-libnpp          enable NVIDIA Performance Primitives-based code [no]
238   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
239   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
240   --enable-libopencv       enable video filtering via libopencv [no]
241   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
242   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librubberband   enable rubberband needed for rubberband filter [no]
246   --enable-librtmp         enable RTMP[E] support via librtmp [no]
247   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-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-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-mediacodec      enable Android MediaCodec 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   --disable-videotoolbox   disable VideoToolbox code [autodetect]
295   --enable-x11grab         enable X11 grabbing (legacy) [no]
296   --disable-xlib           disable xlib [autodetect]
297   --disable-zlib           disable zlib [autodetect]
298
299 Toolchain options:
300   --arch=ARCH              select architecture [$arch]
301   --cpu=CPU                select the minimum required CPU (affects
302                            instruction selection, may crash on older CPUs)
303   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
304   --progs-suffix=SUFFIX    program name suffix []
305   --enable-cross-compile   assume a cross-compiler is used
306   --sysroot=PATH           root of cross-build tree
307   --sysinclude=PATH        location of cross-build system headers
308   --target-os=OS           compiler targets OS [$target_os]
309   --target-exec=CMD        command to run executables on target
310   --target-path=DIR        path to view of build directory on target
311   --target-samples=DIR     path to samples directory on target
312   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
313   --toolchain=NAME         set tool defaults according to NAME
314   --nm=NM                  use nm tool NM [$nm_default]
315   --ar=AR                  use archive tool AR [$ar_default]
316   --as=AS                  use assembler AS [$as_default]
317   --strip=STRIP            use strip tool STRIP [$strip_default]
318   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
319   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
320   --cc=CC                  use C compiler CC [$cc_default]
321   --cxx=CXX                use C compiler CXX [$cxx_default]
322   --objcc=OCC              use ObjC compiler OCC [$cc_default]
323   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
324   --ld=LD                  use linker LD [$ld_default]
325   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
326   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
327   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
328   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
329   --host-cc=HOSTCC         use host C compiler HOSTCC
330   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
331   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
332   --host-ld=HOSTLD         use host linker HOSTLD
333   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
334   --host-libs=HLIBS        use libs HLIBS when linking for host
335   --host-os=OS             compiler host OS [$target_os]
336   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
337   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
338   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
339   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
340   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
341   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
342   --extra-libs=ELIBS       add ELIBS [$ELIBS]
343   --extra-version=STRING   version string suffix []
344   --optflags=OPTFLAGS      override optimization-related compiler flags
345   --build-suffix=SUFFIX    library name suffix []
346   --enable-pic             build position-independent code
347   --enable-thumb           compile for Thumb instruction set
348   --enable-lto             use link-time optimization
349   --env="ENV=override"     override the environment variables
350
351 Advanced options (experts only):
352   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
353   --custom-allocator=NAME  use a supported custom allocator
354   --disable-symver         disable symbol versioning
355   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
356   --disable-safe-bitstream-reader
357                            disable buffer boundary checking in bitreaders
358                            (faster, but may crash)
359   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
360   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
361
362 Optimization options (experts only):
363   --disable-asm            disable all assembly optimizations
364   --disable-altivec        disable AltiVec optimizations
365   --disable-vsx            disable VSX optimizations
366   --disable-power8         disable POWER8 optimizations
367   --disable-amd3dnow       disable 3DNow! optimizations
368   --disable-amd3dnowext    disable 3DNow! extended optimizations
369   --disable-mmx            disable MMX optimizations
370   --disable-mmxext         disable MMXEXT optimizations
371   --disable-sse            disable SSE optimizations
372   --disable-sse2           disable SSE2 optimizations
373   --disable-sse3           disable SSE3 optimizations
374   --disable-ssse3          disable SSSE3 optimizations
375   --disable-sse4           disable SSE4 optimizations
376   --disable-sse42          disable SSE4.2 optimizations
377   --disable-avx            disable AVX optimizations
378   --disable-xop            disable XOP optimizations
379   --disable-fma3           disable FMA3 optimizations
380   --disable-fma4           disable FMA4 optimizations
381   --disable-avx2           disable AVX2 optimizations
382   --disable-aesni          disable AESNI optimizations
383   --disable-armv5te        disable armv5te optimizations
384   --disable-armv6          disable armv6 optimizations
385   --disable-armv6t2        disable armv6t2 optimizations
386   --disable-vfp            disable VFP optimizations
387   --disable-neon           disable NEON optimizations
388   --disable-inline-asm     disable use of inline assembly
389   --disable-yasm           disable use of nasm/yasm assembly
390   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
391   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
392   --disable-msa            disable MSA optimizations
393   --disable-mipsfpu        disable floating point MIPS optimizations
394   --disable-mmi            disable Loongson SIMD optimizations
395   --disable-fast-unaligned consider unaligned accesses slow
396
397 Developer options (useful when working on FFmpeg itself):
398   --disable-debug          disable debugging symbols
399   --enable-debug=LEVEL     set the debug level [$debuglevel]
400   --disable-optimizations  disable compiler optimizations
401   --enable-extra-warnings  enable more compiler warnings
402   --disable-stripping      disable stripping of executables and shared libraries
403   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
404                            2 causes a slowdown at runtime.
405   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
406   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
407                            leaks and errors, using the specified valgrind binary.
408                            Cannot be combined with --target-exec
409   --enable-ftrapv          Trap arithmetic overflows
410   --samples=PATH           location of test samples for FATE, if not set use
411                            \$FATE_SAMPLES at make invocation time.
412   --enable-neon-clobber-test check NEON registers for clobbering (should be
413                            used only for debugging purposes)
414   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
415                            should be used only for debugging purposes)
416   --enable-random          randomly enable/disable components
417   --disable-random
418   --enable-random=LIST     randomly enable/disable specific components or
419   --disable-random=LIST    component groups. LIST is a comma-separated list
420                            of NAME[:PROB] entries where NAME is a component
421                            (group) and PROB the probability associated with
422                            NAME (default 0.5).
423   --random-seed=VALUE      seed value for --enable/disable-random
424   --disable-valgrind-backtrace do not print a backtrace under Valgrind
425                            (only applies to --disable-optimizations builds)
426
427 NOTE: Object files are built at the place where configure is launched.
428 EOF
429   exit 0
430 }
431
432 quotes='""'
433 if test -t 1 && which tput >/dev/null 2>&1; then
434     ncolors=$(tput colors)
435     if test -n "$ncolors" && test $ncolors -ge 8; then
436         bold_color=$(tput bold)
437         warn_color=$(tput setaf 3)
438         error_color=$(tput setaf 1)
439         reset_color=$(tput sgr0)
440     fi
441     # 72 used instead of 80 since that's the default of pr
442     ncols=$(tput cols)
443 fi
444 : ${ncols:=72}
445
446 log(){
447     echo "$@" >> $logfile
448 }
449
450 log_file(){
451     log BEGIN $1
452     pr -n -t $1 >> $logfile
453     log END $1
454 }
455
456 warn(){
457     log "WARNING: $*"
458     WARNINGS="${WARNINGS}WARNING: $*\n"
459 }
460
461 die(){
462     log "$@"
463     echo "$error_color$bold_color$@$reset_color"
464     cat <<EOF
465
466 If you think configure made a mistake, make sure you are using the latest
467 version from Git.  If the latest version fails, report the problem to the
468 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
469 EOF
470     if disabled logging; then
471         cat <<EOF
472 Rerun configure with logging enabled (do not use --disable-logging), and
473 include the log this produces with your report.
474 EOF
475     else
476         cat <<EOF
477 Include the log file "$logfile" produced by configure as this will help
478 solve the problem.
479 EOF
480     fi
481     exit 1
482 }
483
484 # Avoid locale weirdness, besides we really just want to translate ASCII.
485 toupper(){
486     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
487 }
488
489 tolower(){
490     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
491 }
492
493 c_escape(){
494     echo "$*" | sed 's/["\\]/\\\0/g'
495 }
496
497 sh_quote(){
498     v=$(echo "$1" | sed "s/'/'\\\\''/g")
499     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
500     echo "$v"
501 }
502
503 cleanws(){
504     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
505 }
506
507 filter(){
508     pat=$1
509     shift
510     for v; do
511         eval "case $v in $pat) echo $v ;; esac"
512     done
513 }
514
515 filter_out(){
516     pat=$1
517     shift
518     for v; do
519         eval "case $v in $pat) ;; *) echo $v ;; esac"
520     done
521 }
522
523 map(){
524     m=$1
525     shift
526     for v; do eval $m; done
527 }
528
529 add_suffix(){
530     suffix=$1
531     shift
532     for v; do echo ${v}${suffix}; done
533 }
534
535 set_all(){
536     value=$1
537     shift
538     for var in $*; do
539         eval $var=$value
540     done
541 }
542
543 set_weak(){
544     value=$1
545     shift
546     for var; do
547         eval : \${$var:=$value}
548     done
549 }
550
551 sanitize_var_name(){
552     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
553 }
554
555 set_safe(){
556     var=$1
557     shift
558     eval $(sanitize_var_name "$var")='$*'
559 }
560
561 get_safe(){
562     eval echo \$$(sanitize_var_name "$1")
563 }
564
565 pushvar(){
566     for pvar in $*; do
567         eval level=\${${pvar}_level:=0}
568         eval ${pvar}_${level}="\$$pvar"
569         eval ${pvar}_level=$(($level+1))
570     done
571 }
572
573 popvar(){
574     for pvar in $*; do
575         eval level=\${${pvar}_level:-0}
576         test $level = 0 && continue
577         eval level=$(($level-1))
578         eval $pvar="\${${pvar}_${level}}"
579         eval ${pvar}_level=$level
580         eval unset ${pvar}_${level}
581     done
582 }
583
584 enable(){
585     set_all yes $*
586 }
587
588 disable(){
589     set_all no $*
590 }
591
592 enable_weak(){
593     set_weak yes $*
594 }
595
596 disable_weak(){
597     set_weak no $*
598 }
599
600 enable_safe(){
601     for var; do
602         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
603     done
604 }
605
606 disable_safe(){
607     for var; do
608         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
609     done
610 }
611
612 do_enable_deep(){
613     for var; do
614         enabled $var && continue
615         eval sel="\$${var}_select"
616         eval sgs="\$${var}_suggest"
617         pushvar var sgs
618         enable_deep $sel
619         popvar sgs
620         enable_deep_weak $sgs
621         popvar var
622     done
623 }
624
625 enable_deep(){
626     do_enable_deep $*
627     enable $*
628 }
629
630 enable_deep_weak(){
631     for var; do
632         disabled $var && continue
633         pushvar var
634         do_enable_deep $var
635         popvar var
636         enable_weak $var
637     done
638 }
639
640 enabled(){
641     test "${1#!}" = "$1" && op='=' || op=!=
642     eval test "x\$${1#!}" $op "xyes"
643 }
644
645 disabled(){
646     test "${1#!}" = "$1" && op='=' || op=!=
647     eval test "x\$${1#!}" $op "xno"
648 }
649
650 enabled_all(){
651     for opt; do
652         enabled $opt || return 1
653     done
654 }
655
656 disabled_all(){
657     for opt; do
658         disabled $opt || return 1
659     done
660 }
661
662 enabled_any(){
663     for opt; do
664         enabled $opt && return 0
665     done
666 }
667
668 disabled_any(){
669     for opt; do
670         disabled $opt && return 0
671     done
672     return 1
673 }
674
675 set_default(){
676     for opt; do
677         eval : \${$opt:=\$${opt}_default}
678     done
679 }
680
681 is_in(){
682     value=$1
683     shift
684     for var in $*; do
685         [ $var = $value ] && return 0
686     done
687     return 1
688 }
689
690 do_check_deps(){
691     for cfg; do
692         cfg="${cfg#!}"
693         enabled ${cfg}_checking && die "Circular dependency for $cfg."
694         disabled ${cfg}_checking && continue
695         enable ${cfg}_checking
696         append allopts $cfg
697
698         eval dep_all="\$${cfg}_deps"
699         eval dep_any="\$${cfg}_deps_any"
700         eval dep_sel="\$${cfg}_select"
701         eval dep_sgs="\$${cfg}_suggest"
702         eval dep_ifa="\$${cfg}_if"
703         eval dep_ifn="\$${cfg}_if_any"
704
705         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
707         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
708
709         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
710         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
711         enabled_all  $dep_all || disable $cfg
712         enabled_any  $dep_any || disable $cfg
713         disabled_any $dep_sel && disable $cfg
714
715         if enabled $cfg; then
716             enable_deep $dep_sel
717             enable_deep_weak $dep_sgs
718         fi
719
720         disable ${cfg}_checking
721     done
722 }
723
724 check_deps(){
725     unset allopts
726
727     do_check_deps "$@"
728
729     for cfg in $allopts; do
730         enabled $cfg || continue
731         eval dep_extralibs="\$${cfg}_extralibs"
732         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
733     done
734 }
735
736 print_config(){
737     pfx=$1
738     files=$2
739     shift 2
740     map 'eval echo "$v \${$v:-no}"' "$@" |
741     awk "BEGIN { split(\"$files\", files) }
742         {
743             c = \"$pfx\" toupper(\$1);
744             v = \$2;
745             sub(/yes/, 1, v);
746             sub(/no/,  0, v);
747             for (f in files) {
748                 file = files[f];
749                 if (file ~ /\\.h\$/) {
750                     printf(\"#define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.asm\$/) {
752                     printf(\"%%define %s %d\\n\", c, v) >>file;
753                 } else if (file ~ /\\.mak\$/) {
754                     n = -v ? \"\" : \"!\";
755                     printf(\"%s%s=yes\\n\", n, c) >>file;
756                 } else if (file ~ /\\.texi\$/) {
757                     pre = -v ? \"\" : \"@c \";
758                     yesno = \$2;
759                     c2 = tolower(c);
760                     gsub(/_/, \"-\", c2);
761                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
762                 }
763             }
764         }"
765 }
766
767 print_enabled(){
768     suf=$1
769     shift
770     for v; do
771         enabled $v && printf "%s\n" ${v%$suf};
772     done
773 }
774
775 append(){
776     var=$1
777     shift
778     eval "$var=\"\$$var $*\""
779 }
780
781 prepend(){
782     var=$1
783     shift
784     eval "$var=\"$* \$$var\""
785 }
786
787 unique(){
788     var=$1
789     uniq_list=""
790     for tok in $(eval echo \$$var); do
791         uniq_list="$(filter_out $tok $uniq_list) $tok"
792     done
793     eval "$var=\"${uniq_list}\""
794 }
795
796 add_cppflags(){
797     append CPPFLAGS "$@"
798 }
799
800 add_cflags(){
801     append CFLAGS $($cflags_filter "$@")
802 }
803
804 add_cxxflags(){
805     append CXXFLAGS $($cflags_filter "$@")
806 }
807
808 add_asflags(){
809     append ASFLAGS $($asflags_filter "$@")
810 }
811
812 add_objcflags(){
813     append OBJCFLAGS $($objcflags_filter "$@")
814 }
815
816 add_ldflags(){
817     append LDFLAGS $($ldflags_filter "$@")
818 }
819
820 add_ldexeflags(){
821     append LDEXEFLAGS $($ldflags_filter "$@")
822 }
823
824 add_ldlibflags(){
825     append LDLIBFLAGS $($ldflags_filter "$@")
826 }
827
828 add_stripflags(){
829     append ASMSTRIPFLAGS "$@"
830 }
831
832 add_extralibs(){
833     prepend extralibs $($ldflags_filter "$@")
834 }
835
836 add_host_cppflags(){
837     append host_cppflags "$@"
838 }
839
840 add_host_cflags(){
841     append host_cflags $($host_cflags_filter "$@")
842 }
843
844 add_host_ldflags(){
845     append host_ldflags $($host_ldflags_filter "$@")
846 }
847
848 add_compat(){
849     append compat_objs $1
850     shift
851     map 'add_cppflags -D$v' "$@"
852 }
853
854 check_cmd(){
855     log "$@"
856     "$@" >> $logfile 2>&1
857 }
858
859 check_stat(){
860     log check_stat "$@"
861     stat "$1" >> $logfile 2>&1
862 }
863
864 cc_o(){
865     eval printf '%s\\n' $CC_O
866 }
867
868 cc_e(){
869     eval printf '%s\\n' $CC_E
870 }
871
872 check_cc(){
873     log check_cc "$@"
874     cat > $TMPC
875     log_file $TMPC
876     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
877 }
878
879 check_cxx(){
880     log check_cxx "$@"
881     cat > $TMPCPP
882     log_file $TMPCPP
883     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
884 }
885
886 check_objcc(){
887     log check_objcc "$@"
888     cat > $TMPM
889     log_file $TMPM
890     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
891 }
892
893 check_cpp(){
894     log check_cpp "$@"
895     cat > $TMPC
896     log_file $TMPC
897     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
898 }
899
900 as_o(){
901     eval printf '%s\\n' $AS_O
902 }
903
904 check_as(){
905     log check_as "$@"
906     cat > $TMPS
907     log_file $TMPS
908     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
909 }
910
911 check_inline_asm(){
912     log check_inline_asm "$@"
913     name="$1"
914     code="$2"
915     shift 2
916     disable $name
917     check_cc "$@" <<EOF && enable $name
918 void foo(void){ __asm__ volatile($code); }
919 EOF
920 }
921
922 check_inline_asm_flags(){
923     log check_inline_asm_flags "$@"
924     name="$1"
925     code="$2"
926     flags=''
927     shift 2
928     while [ "$1" != "" ]; do
929       append flags $1
930       shift
931     done;
932     disable $name
933     cat > $TMPC <<EOF
934 void foo(void){ __asm__ volatile($code); }
935 EOF
936     log_file $TMPC
937     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
938     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
939 }
940
941 check_insn(){
942     log check_insn "$@"
943     check_inline_asm ${1}_inline "\"$2\""
944     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
945 }
946
947 check_yasm(){
948     log check_yasm "$@"
949     echo "$1" > $TMPS
950     log_file $TMPS
951     shift 1
952     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
953 }
954
955 ld_o(){
956     eval printf '%s\\n' $LD_O
957 }
958
959 check_ld(){
960     log check_ld "$@"
961     type=$1
962     shift 1
963     flags=$(filter_out '-l*|*.so' $@)
964     libs=$(filter '-l*|*.so' $@)
965     check_$type $($cflags_filter $flags) || return
966     flags=$($ldflags_filter $flags)
967     libs=$($ldflags_filter $libs)
968     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
969 }
970
971 print_include(){
972     hdr=$1
973     test "${hdr%.h}" = "${hdr}" &&
974         echo "#include $hdr"    ||
975         echo "#include <$hdr>"
976 }
977
978 check_code(){
979     log check_code "$@"
980     check=$1
981     headers=$2
982     code=$3
983     shift 3
984     {
985         for hdr in $headers; do
986             print_include $hdr
987         done
988         echo "int main(void) { $code; return 0; }"
989     } | check_$check "$@"
990 }
991
992 check_cppflags(){
993     log check_cppflags "$@"
994     check_cc "$@" <<EOF && append CPPFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_cflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_cc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_cflags(){
1008     log check_cflags "$@"
1009     test_cflags "$@" && add_cflags "$@"
1010 }
1011
1012 check_cxxflags(){
1013     log check_cxxflags "$@"
1014     set -- $($cflags_filter "$@")
1015     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1016 int x;
1017 EOF
1018 }
1019
1020 test_objcflags(){
1021     log test_cflags "$@"
1022     set -- $($cflags_filter "$@")
1023     check_objcc "$@" <<EOF
1024 int x;
1025 EOF
1026 }
1027
1028 check_objcflags(){
1029     log check_cflags "$@"
1030     test_objcflags "$@" && add_objcflags "$@"
1031 }
1032
1033 test_ldflags(){
1034     log test_ldflags "$@"
1035     check_ld "cc" "$@" <<EOF
1036 int main(void){ return 0; }
1037 EOF
1038 }
1039
1040 check_ldflags(){
1041     log check_ldflags "$@"
1042     test_ldflags "$@" && add_ldflags "$@"
1043 }
1044
1045 test_stripflags(){
1046     log test_stripflags "$@"
1047     # call check_cc to get a fresh TMPO
1048     check_cc <<EOF
1049 int main(void) { return 0; }
1050 EOF
1051     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1052 }
1053
1054 check_stripflags(){
1055     log check_stripflags "$@"
1056     test_stripflags "$@" && add_stripflags "$@"
1057 }
1058
1059 check_header(){
1060     log check_header "$@"
1061     header=$1
1062     shift
1063     disable_safe $header
1064     check_cpp "$@" <<EOF && enable_safe $header
1065 #include <$header>
1066 int x;
1067 EOF
1068 }
1069
1070 check_header_objcc(){
1071     log check_header_objcc "$@"
1072     rm -f -- "$TMPO"
1073     header=$1
1074     shift
1075     disable_safe $header
1076     {
1077        echo "#include <$header>"
1078        echo "int main(void) { return 0; }"
1079     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1080 }
1081
1082 check_func(){
1083     log check_func "$@"
1084     func=$1
1085     shift
1086     disable $func
1087     check_ld "cc" "$@" <<EOF && enable $func
1088 extern int $func();
1089 int main(void){ $func(); }
1090 EOF
1091 }
1092
1093 check_complexfunc(){
1094     log check_complexfunc "$@"
1095     func=$1
1096     narg=$2
1097     shift 2
1098     test $narg = 2 && args="f, g" || args="f * I"
1099     disable $func
1100     check_ld "cc" "$@" <<EOF && enable $func
1101 #include <complex.h>
1102 #include <math.h>
1103 float foo(complex float f, complex float g) { return $func($args); }
1104 int main(void){ return (int) foo; }
1105 EOF
1106 }
1107
1108 check_mathfunc(){
1109     log check_mathfunc "$@"
1110     func=$1
1111     narg=$2
1112     shift 2
1113     test $narg = 2 && args="f, g" || args="f"
1114     disable $func
1115     check_ld "cc" "$@" <<EOF && enable $func
1116 #include <math.h>
1117 float foo(float f, float g) { return $func($args); }
1118 int main(void){ return (int) foo; }
1119 EOF
1120 }
1121
1122 check_func_headers(){
1123     log check_func_headers "$@"
1124     headers=$1
1125     funcs=$2
1126     shift 2
1127     {
1128         for hdr in $headers; do
1129             print_include $hdr
1130         done
1131         for func in $funcs; do
1132             echo "long check_$func(void) { return (long) $func; }"
1133         done
1134         echo "int main(void) { return 0; }"
1135     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1136 }
1137
1138 check_class_headers_cpp(){
1139     log check_class_headers_cpp "$@"
1140     headers=$1
1141     classes=$2
1142     shift 2
1143     {
1144         for hdr in $headers; do
1145             echo "#include <$hdr>"
1146         done
1147         echo "int main(void) { "
1148         i=1
1149         for class in $classes; do
1150             echo "$class obj$i;"
1151             i=$(expr $i + 1)
1152         done
1153         echo "return 0; }"
1154     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1155 }
1156
1157 check_cpp_condition(){
1158     log check_cpp_condition "$@"
1159     header=$1
1160     condition=$2
1161     shift 2
1162     check_cpp "$@" <<EOF
1163 #include <$header>
1164 #if !($condition)
1165 #error "unsatisfied condition: $condition"
1166 #endif
1167 EOF
1168 }
1169
1170 check_lib(){
1171     log check_lib "$@"
1172     header="$1"
1173     func="$2"
1174     shift 2
1175     check_header $header && check_func $func "$@" && add_extralibs "$@"
1176 }
1177
1178 check_lib2(){
1179     log check_lib2 "$@"
1180     headers="$1"
1181     funcs="$2"
1182     shift 2
1183     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1184 }
1185
1186 check_lib_cpp(){
1187     log check_lib_cpp "$@"
1188     headers="$1"
1189     classes="$2"
1190     shift 2
1191     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1192 }
1193
1194 check_pkg_config(){
1195     log check_pkg_config "$@"
1196     pkgandversion="$1"
1197     pkg="${1%% *}"
1198     headers="$2"
1199     funcs="$3"
1200     shift 3
1201     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1202     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1203     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1204     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1205         set_safe "${pkg}_cflags" $pkg_cflags   &&
1206         set_safe "${pkg}_libs"   $pkg_libs
1207 }
1208
1209 check_exec(){
1210     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1211 }
1212
1213 check_exec_crash(){
1214     code=$(cat)
1215
1216     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1217     # are safe but may not be available everywhere.  Thus we use
1218     # raise(SIGTERM) instead.  The check is run in a subshell so we
1219     # can redirect the "Terminated" message from the shell.  SIGBUS
1220     # is not defined by standard C so it is used conditionally.
1221
1222     (check_exec "$@") >> $logfile 2>&1 <<EOF
1223 #include <signal.h>
1224 static void sighandler(int sig){
1225     raise(SIGTERM);
1226 }
1227 int foo(void){
1228     $code
1229 }
1230 int (*func_ptr)(void) = foo;
1231 int main(void){
1232     signal(SIGILL, sighandler);
1233     signal(SIGFPE, sighandler);
1234     signal(SIGSEGV, sighandler);
1235 #ifdef SIGBUS
1236     signal(SIGBUS, sighandler);
1237 #endif
1238     return func_ptr();
1239 }
1240 EOF
1241 }
1242
1243 check_type(){
1244     log check_type "$@"
1245     headers=$1
1246     type=$2
1247     shift 2
1248     disable_safe "$type"
1249     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1250 }
1251
1252 check_struct(){
1253     log check_struct "$@"
1254     headers=$1
1255     struct=$2
1256     member=$3
1257     shift 3
1258     disable_safe "${struct}_${member}"
1259     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1260         enable_safe "${struct}_${member}"
1261 }
1262
1263 check_builtin(){
1264     log check_builtin "$@"
1265     name=$1
1266     headers=$2
1267     builtin=$3
1268     shift 3
1269     disable "$name"
1270     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1271 }
1272
1273 check_compile_assert(){
1274     log check_compile_assert "$@"
1275     name=$1
1276     headers=$2
1277     condition=$3
1278     shift 3
1279     disable "$name"
1280     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1281 }
1282
1283 require(){
1284     name="$1"
1285     header="$2"
1286     func="$3"
1287     shift 3
1288     check_lib $header $func "$@" || die "ERROR: $name not found"
1289 }
1290
1291 require2(){
1292     name="$1"
1293     headers="$2"
1294     func="$3"
1295     shift 3
1296     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1297 }
1298
1299 require_cpp(){
1300     name="$1"
1301     headers="$2"
1302     classes="$3"
1303     shift 3
1304     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1305 }
1306
1307 use_pkg_config(){
1308     pkg="$1"
1309     check_pkg_config "$@" || return 1
1310     add_cflags    $(get_safe "${pkg}_cflags")
1311     add_extralibs $(get_safe "${pkg}_libs")
1312 }
1313
1314 require_pkg_config(){
1315     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1316 }
1317
1318 require_libfreetype(){
1319     log require_libfreetype "$@"
1320     pkg="freetype2"
1321     check_cmd $pkg_config --exists --print-errors $pkg \
1322       || die "ERROR: $pkg not found"
1323     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1324     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1325     {
1326         echo "#include <ft2build.h>"
1327         echo "#include FT_FREETYPE_H"
1328         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1329         echo "int main(void) { return 0; }"
1330     } | check_ld "cc" $pkg_cflags $pkg_libs \
1331       && set_safe "${pkg}_cflags" $pkg_cflags \
1332       && set_safe "${pkg}_libs"   $pkg_libs \
1333       || die "ERROR: $pkg not found"
1334     add_cflags    $(get_safe "${pkg}_cflags")
1335     add_extralibs $(get_safe "${pkg}_libs")
1336 }
1337
1338 hostcc_e(){
1339     eval printf '%s\\n' $HOSTCC_E
1340 }
1341
1342 hostcc_o(){
1343     eval printf '%s\\n' $HOSTCC_O
1344 }
1345
1346 check_host_cc(){
1347     log check_host_cc "$@"
1348     cat > $TMPC
1349     log_file $TMPC
1350     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1351 }
1352
1353 check_host_cpp(){
1354     log check_host_cpp "$@"
1355     cat > $TMPC
1356     log_file $TMPC
1357     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1358 }
1359
1360 check_host_cppflags(){
1361     log check_host_cppflags "$@"
1362     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1363 int x;
1364 EOF
1365 }
1366
1367 check_host_cflags(){
1368     log check_host_cflags "$@"
1369     set -- $($host_cflags_filter "$@")
1370     check_host_cc "$@" <<EOF && append host_cflags "$@"
1371 int x;
1372 EOF
1373 }
1374
1375 check_host_cpp_condition(){
1376     log check_host_cpp_condition "$@"
1377     header=$1
1378     condition=$2
1379     shift 2
1380     check_host_cpp "$@" <<EOF
1381 #include <$header>
1382 #if !($condition)
1383 #error "unsatisfied condition: $condition"
1384 #endif
1385 EOF
1386 }
1387
1388 cp_if_changed(){
1389     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1390     mkdir -p "$(dirname $2)"
1391     $cp_f "$1" "$2"
1392 }
1393
1394 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1395 # system-dependent things.
1396
1397 AVCODEC_COMPONENTS="
1398     bsfs
1399     decoders
1400     encoders
1401     hwaccels
1402     parsers
1403 "
1404
1405 AVDEVICE_COMPONENTS="
1406     indevs
1407     outdevs
1408 "
1409 AVFILTER_COMPONENTS="
1410     filters
1411 "
1412 AVFORMAT_COMPONENTS="
1413     demuxers
1414     muxers
1415     protocols
1416 "
1417
1418 AVRESAMPLE_COMPONENTS=""
1419 AVUTIL_COMPONENTS=""
1420
1421 COMPONENT_LIST="
1422     $AVCODEC_COMPONENTS
1423     $AVDEVICE_COMPONENTS
1424     $AVFILTER_COMPONENTS
1425     $AVFORMAT_COMPONENTS
1426     $AVRESAMPLE_COMPONENTS
1427     $AVUTIL_COMPONENTS
1428 "
1429
1430 EXAMPLE_LIST="
1431     avio_reading_example
1432     avio_dir_cmd_example
1433     decoding_encoding_example
1434     demuxing_decoding_example
1435     extract_mvs_example
1436     filter_audio_example
1437     filtering_audio_example
1438     filtering_video_example
1439     metadata_example
1440     muxing_example
1441     qsvdec_example
1442     remuxing_example
1443     resampling_audio_example
1444     scaling_video_example
1445     transcode_aac_example
1446     transcoding_example
1447 "
1448
1449 EXTERNAL_LIBRARY_LIST="
1450     audiotoolbox
1451     avisynth
1452     bzlib
1453     chromaprint
1454     crystalhd
1455     cuda
1456     decklink
1457     frei0r
1458     gcrypt
1459     gmp
1460     gnutls
1461     iconv
1462     jni
1463     ladspa
1464     libass
1465     libbluray
1466     libbs2b
1467     libcaca
1468     libcdio
1469     libcelt
1470     libdc1394
1471     libfaac
1472     libfdk_aac
1473     libflite
1474     libfontconfig
1475     libfreetype
1476     libfribidi
1477     libgme
1478     libgsm
1479     libiec61883
1480     libilbc
1481     libkvazaar
1482     libmfx
1483     libmodplug
1484     libmp3lame
1485     libnut
1486     libnpp
1487     libopencore_amrnb
1488     libopencore_amrwb
1489     libopencv
1490     libopenh264
1491     libopenjpeg
1492     libopus
1493     libpulse
1494     librtmp
1495     librubberband
1496     libschroedinger
1497     libshine
1498     libsmbclient
1499     libsnappy
1500     libsoxr
1501     libspeex
1502     libssh
1503     libtesseract
1504     libtheora
1505     libtwolame
1506     libutvideo
1507     libv4l2
1508     libvidstab
1509     libvo_amrwbenc
1510     libvorbis
1511     libvpx
1512     libwavpack
1513     libwebp
1514     libx264
1515     libx265
1516     libxavs
1517     libxcb
1518     libxcb_shm
1519     libxcb_shape
1520     libxcb_xfixes
1521     libxvid
1522     libzimg
1523     libzmq
1524     libzvbi
1525     lzma
1526     mediacodec
1527     mmal
1528     netcdf
1529     nvenc
1530     openal
1531     opencl
1532     opengl
1533     openssl
1534     schannel
1535     sdl
1536     securetransport
1537     videotoolbox
1538     x11grab
1539     xlib
1540     zlib
1541 "
1542
1543 DOCUMENT_LIST="
1544     doc
1545     htmlpages
1546     manpages
1547     podpages
1548     txtpages
1549 "
1550
1551 FEATURE_LIST="
1552     ftrapv
1553     gray
1554     hardcoded_tables
1555     runtime_cpudetect
1556     safe_bitstream_reader
1557     shared
1558     small
1559     static
1560     swscale_alpha
1561 "
1562
1563 HWACCEL_LIST="
1564     d3d11va
1565     dxva2
1566     vaapi
1567     vda
1568     vdpau
1569     videotoolbox_hwaccel
1570     xvmc
1571 "
1572
1573 LIBRARY_LIST="
1574     avcodec
1575     avdevice
1576     avfilter
1577     avformat
1578     avresample
1579     avutil
1580     postproc
1581     swresample
1582     swscale
1583 "
1584
1585 LICENSE_LIST="
1586     gpl
1587     nonfree
1588     version3
1589 "
1590
1591 PROGRAM_LIST="
1592     ffplay
1593     ffprobe
1594     ffserver
1595     ffmpeg
1596 "
1597
1598 SUBSYSTEM_LIST="
1599     dct
1600     dwt
1601     error_resilience
1602     faan
1603     fast_unaligned
1604     fft
1605     lsp
1606     lzo
1607     mdct
1608     pixelutils
1609     network
1610     rdft
1611 "
1612
1613 CONFIG_LIST="
1614     $COMPONENT_LIST
1615     $DOCUMENT_LIST
1616     $EXAMPLE_LIST
1617     $EXTERNAL_LIBRARY_LIST
1618     $FEATURE_LIST
1619     $HWACCEL_LIST
1620     $LICENSE_LIST
1621     $LIBRARY_LIST
1622     $PROGRAM_LIST
1623     $SUBSYSTEM_LIST
1624     fontconfig
1625     incompatible_libav_abi
1626     memalign_hack
1627     memory_poisoning
1628     neon_clobber_test
1629     pic
1630     pod2man
1631     raise_major
1632     thumb
1633     valgrind_backtrace
1634     xmm_clobber_test
1635 "
1636
1637 THREADS_LIST="
1638     pthreads
1639     os2threads
1640     w32threads
1641 "
1642
1643 ATOMICS_LIST="
1644     atomics_gcc
1645     atomics_suncc
1646     atomics_win32
1647 "
1648
1649 ARCH_LIST="
1650     aarch64
1651     alpha
1652     arm
1653     avr32
1654     avr32_ap
1655     avr32_uc
1656     bfin
1657     ia64
1658     m68k
1659     mips
1660     mips64
1661     parisc
1662     ppc
1663     ppc64
1664     s390
1665     sh4
1666     sparc
1667     sparc64
1668     tilegx
1669     tilepro
1670     tomi
1671     x86
1672     x86_32
1673     x86_64
1674 "
1675
1676 ARCH_EXT_LIST_ARM="
1677     armv5te
1678     armv6
1679     armv6t2
1680     armv8
1681     neon
1682     vfp
1683     vfpv3
1684     setend
1685 "
1686
1687 ARCH_EXT_LIST_MIPS="
1688     mipsfpu
1689     mips32r2
1690     mips32r5
1691     mips64r2
1692     mips32r6
1693     mips64r6
1694     mipsdsp
1695     mipsdspr2
1696     msa
1697 "
1698
1699 ARCH_EXT_LIST_LOONGSON="
1700     loongson2
1701     loongson3
1702     mmi
1703 "
1704
1705 ARCH_EXT_LIST_X86_SIMD="
1706     aesni
1707     amd3dnow
1708     amd3dnowext
1709     avx
1710     avx2
1711     fma3
1712     fma4
1713     mmx
1714     mmxext
1715     sse
1716     sse2
1717     sse3
1718     sse4
1719     sse42
1720     ssse3
1721     xop
1722 "
1723
1724 ARCH_EXT_LIST_PPC="
1725     altivec
1726     dcbzl
1727     ldbrx
1728     power8
1729     ppc4xx
1730     vsx
1731 "
1732
1733 ARCH_EXT_LIST_X86="
1734     $ARCH_EXT_LIST_X86_SIMD
1735     cpunop
1736     i686
1737 "
1738
1739 ARCH_EXT_LIST="
1740     $ARCH_EXT_LIST_ARM
1741     $ARCH_EXT_LIST_PPC
1742     $ARCH_EXT_LIST_X86
1743     $ARCH_EXT_LIST_MIPS
1744     $ARCH_EXT_LIST_LOONGSON
1745 "
1746
1747 ARCH_FEATURES="
1748     aligned_stack
1749     fast_64bit
1750     fast_clz
1751     fast_cmov
1752     local_aligned_8
1753     local_aligned_16
1754     local_aligned_32
1755     simd_align_16
1756 "
1757
1758 BUILTIN_LIST="
1759     atomic_cas_ptr
1760     atomic_compare_exchange
1761     machine_rw_barrier
1762     MemoryBarrier
1763     mm_empty
1764     rdtsc
1765     sarestart
1766     sem_timedwait
1767     sync_val_compare_and_swap
1768 "
1769 HAVE_LIST_CMDLINE="
1770     inline_asm
1771     symver
1772     yasm
1773 "
1774
1775 HAVE_LIST_PUB="
1776     bigendian
1777     fast_unaligned
1778     incompatible_libav_abi
1779 "
1780
1781 HEADERS_LIST="
1782     alsa_asoundlib_h
1783     altivec_h
1784     arpa_inet_h
1785     asm_types_h
1786     cdio_paranoia_h
1787     cdio_paranoia_paranoia_h
1788     dispatch_dispatch_h
1789     dev_bktr_ioctl_bt848_h
1790     dev_bktr_ioctl_meteor_h
1791     dev_ic_bt8xx_h
1792     dev_video_bktr_ioctl_bt848_h
1793     dev_video_meteor_ioctl_meteor_h
1794     direct_h
1795     dirent_h
1796     dlfcn_h
1797     d3d11_h
1798     dxva_h
1799     ES2_gl_h
1800     gsm_h
1801     io_h
1802     mach_mach_time_h
1803     machine_ioctl_bt848_h
1804     machine_ioctl_meteor_h
1805     malloc_h
1806     opencv2_core_core_c_h
1807     openjpeg_2_1_openjpeg_h
1808     openjpeg_2_0_openjpeg_h
1809     openjpeg_1_5_openjpeg_h
1810     OpenGL_gl3_h
1811     poll_h
1812     sndio_h
1813     soundcard_h
1814     sys_mman_h
1815     sys_param_h
1816     sys_resource_h
1817     sys_select_h
1818     sys_soundcard_h
1819     sys_time_h
1820     sys_un_h
1821     sys_videoio_h
1822     termios_h
1823     udplite_h
1824     unistd_h
1825     valgrind_valgrind_h
1826     windows_h
1827     winsock2_h
1828 "
1829
1830 INTRINSICS_LIST="
1831     intrinsics_neon
1832 "
1833
1834 COMPLEX_FUNCS="
1835     cabs
1836     cexp
1837 "
1838
1839 MATH_FUNCS="
1840     atanf
1841     atan2f
1842     cbrt
1843     cbrtf
1844     copysign
1845     cosf
1846     erf
1847     exp2
1848     exp2f
1849     expf
1850     hypot
1851     isfinite
1852     isinf
1853     isnan
1854     ldexpf
1855     llrint
1856     llrintf
1857     log2
1858     log2f
1859     log10f
1860     lrint
1861     lrintf
1862     powf
1863     rint
1864     round
1865     roundf
1866     sinf
1867     trunc
1868     truncf
1869 "
1870
1871 SYSTEM_FUNCS="
1872     access
1873     aligned_malloc
1874     arc4random
1875     clock_gettime
1876     closesocket
1877     CommandLineToArgvW
1878     CoTaskMemFree
1879     CryptGenRandom
1880     dlopen
1881     fcntl
1882     flt_lim
1883     fork
1884     getaddrinfo
1885     gethrtime
1886     getopt
1887     GetProcessAffinityMask
1888     GetProcessMemoryInfo
1889     GetProcessTimes
1890     getrusage
1891     GetSystemTimeAsFileTime
1892     gettimeofday
1893     glob
1894     glXGetProcAddress
1895     gmtime_r
1896     inet_aton
1897     isatty
1898     jack_port_get_latency_range
1899     kbhit
1900     localtime_r
1901     lstat
1902     lzo1x_999_compress
1903     mach_absolute_time
1904     MapViewOfFile
1905     memalign
1906     mkstemp
1907     mmap
1908     mprotect
1909     nanosleep
1910     PeekNamedPipe
1911     posix_memalign
1912     pthread_cancel
1913     sched_getaffinity
1914     SetConsoleTextAttribute
1915     SetConsoleCtrlHandler
1916     setmode
1917     setrlimit
1918     Sleep
1919     strerror_r
1920     sysconf
1921     sysctl
1922     usleep
1923     UTGetOSTypeFromString
1924     VirtualAlloc
1925     wglGetProcAddress
1926 "
1927
1928 TOOLCHAIN_FEATURES="
1929     as_dn_directive
1930     as_func
1931     as_object_arch
1932     asm_mod_q
1933     attribute_may_alias
1934     attribute_packed
1935     ebp_available
1936     ebx_available
1937     gnu_as
1938     gnu_windres
1939     ibm_asm
1940     inline_asm_direct_symbol_refs
1941     inline_asm_labels
1942     inline_asm_nonlocal_labels
1943     pragma_deprecated
1944     rsync_contimeout
1945     symver_asm_label
1946     symver_gnu_asm
1947     vfp_args
1948     xform_asm
1949     xmm_clobbers
1950 "
1951
1952 TYPES_LIST="
1953     CONDITION_VARIABLE_Ptr
1954     socklen_t
1955     struct_addrinfo
1956     struct_group_source_req
1957     struct_ip_mreq_source
1958     struct_ipv6_mreq
1959     struct_msghdr_msg_flags
1960     struct_pollfd
1961     struct_rusage_ru_maxrss
1962     struct_sctp_event_subscribe
1963     struct_sockaddr_in6
1964     struct_sockaddr_sa_len
1965     struct_sockaddr_storage
1966     struct_stat_st_mtim_tv_nsec
1967     struct_v4l2_frmivalenum_discrete
1968 "
1969
1970 HAVE_LIST="
1971     $ARCH_EXT_LIST
1972     $(add_suffix _external $ARCH_EXT_LIST)
1973     $(add_suffix _inline   $ARCH_EXT_LIST)
1974     $ARCH_FEATURES
1975     $ATOMICS_LIST
1976     $BUILTIN_LIST
1977     $COMPLEX_FUNCS
1978     $HAVE_LIST_CMDLINE
1979     $HAVE_LIST_PUB
1980     $HEADERS_LIST
1981     $INTRINSICS_LIST
1982     $MATH_FUNCS
1983     $SYSTEM_FUNCS
1984     $THREADS_LIST
1985     $TOOLCHAIN_FEATURES
1986     $TYPES_LIST
1987     atomics_native
1988     dos_paths
1989     dxva2_lib
1990     dxva2api_cobj
1991     libc_msvcrt
1992     libdc1394_1
1993     libdc1394_2
1994     makeinfo
1995     makeinfo_html
1996     perl
1997     pod2man
1998     sdl
1999     section_data_rel_ro
2000     texi2html
2001     threads
2002     vaapi_x11
2003     vdpau_x11
2004     winrt
2005     xlib
2006 "
2007
2008 # options emitted with CONFIG_ prefix but not available on the command line
2009 CONFIG_EXTRA="
2010     aandcttables
2011     ac3dsp
2012     audio_frame_queue
2013     audiodsp
2014     blockdsp
2015     bswapdsp
2016     cabac
2017     dirac_parse
2018     dvprofile
2019     exif
2020     faandct
2021     faanidct
2022     fdctdsp
2023     flacdsp
2024     fmtconvert
2025     frame_thread_encoder
2026     g722dsp
2027     golomb
2028     gplv3
2029     h263dsp
2030     h264chroma
2031     h264dsp
2032     h264pred
2033     h264qpel
2034     hpeldsp
2035     huffman
2036     huffyuvdsp
2037     huffyuvencdsp
2038     idctdsp
2039     iirfilter
2040     imdct15
2041     intrax8
2042     iso_media
2043     ividsp
2044     jpegtables
2045     lgplv3
2046     libx262
2047     llauddsp
2048     llviddsp
2049     lpc
2050     lzf
2051     me_cmp
2052     mpeg_er
2053     mpegaudio
2054     mpegaudiodsp
2055     mpegvideo
2056     mpegvideoenc
2057     mss34dsp
2058     pixblockdsp
2059     qpeldsp
2060     qsv
2061     qsvdec
2062     qsvenc
2063     rangecoder
2064     riffdec
2065     riffenc
2066     rtpdec
2067     rtpenc_chain
2068     rv34dsp
2069     sinewin
2070     snappy
2071     srtp
2072     startcode
2073     texturedsp
2074     texturedspenc
2075     tpeldsp
2076     vc1dsp
2077     videodsp
2078     vp3dsp
2079     vp56dsp
2080     vp8dsp
2081     wma_freqs
2082     wmv2dsp
2083 "
2084
2085 CMDLINE_SELECT="
2086     $ARCH_EXT_LIST
2087     $CONFIG_LIST
2088     $HAVE_LIST_CMDLINE
2089     $THREADS_LIST
2090     asm
2091     cross_compile
2092     debug
2093     extra_warnings
2094     logging
2095     lto
2096     optimizations
2097     rpath
2098     stripping
2099 "
2100
2101 PATHS_LIST="
2102     bindir
2103     datadir
2104     docdir
2105     incdir
2106     libdir
2107     mandir
2108     pkgconfigdir
2109     prefix
2110     shlibdir
2111     install_name_dir
2112 "
2113
2114 CMDLINE_SET="
2115     $PATHS_LIST
2116     ar
2117     arch
2118     as
2119     assert_level
2120     build_suffix
2121     cc
2122     objcc
2123     cpu
2124     cross_prefix
2125     custom_allocator
2126     cxx
2127     dep_cc
2128     doxygen
2129     env
2130     extra_version
2131     gas
2132     host_cc
2133     host_cflags
2134     host_ld
2135     host_ldflags
2136     host_libs
2137     host_os
2138     install
2139     ld
2140     logfile
2141     malloc_prefix
2142     nm
2143     optflags
2144     pkg_config
2145     pkg_config_flags
2146     progs_suffix
2147     random_seed
2148     ranlib
2149     samples
2150     strip
2151     sws_max_filter_size
2152     sysinclude
2153     sysroot
2154     target_exec
2155     target_os
2156     target_path
2157     target_samples
2158     tempprefix
2159     toolchain
2160     valgrind
2161     yasmexe
2162 "
2163
2164 CMDLINE_APPEND="
2165     extra_cflags
2166     extra_cxxflags
2167     extra_objcflags
2168     host_cppflags
2169 "
2170
2171 # code dependency declarations
2172
2173 # architecture extensions
2174
2175 armv5te_deps="arm"
2176 armv6_deps="arm"
2177 armv6t2_deps="arm"
2178 armv8_deps="aarch64"
2179 neon_deps_any="aarch64 arm"
2180 intrinsics_neon_deps="neon"
2181 vfp_deps_any="aarch64 arm"
2182 vfpv3_deps="vfp"
2183 setend_deps="arm"
2184
2185 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2186
2187 mipsfpu_deps="mips"
2188 mipsdsp_deps="mips"
2189 mipsdspr2_deps="mips"
2190 mips32r2_deps="mips"
2191 mips32r5_deps="mips"
2192 mips32r6_deps="mips"
2193 mips64r2_deps="mips"
2194 mips64r6_deps="mips"
2195 msa_deps="mipsfpu"
2196 mmi_deps="mips"
2197
2198 altivec_deps="ppc"
2199 dcbzl_deps="ppc"
2200 ldbrx_deps="ppc"
2201 ppc4xx_deps="ppc"
2202 vsx_deps="altivec"
2203 power8_deps="vsx"
2204
2205 cpunop_deps="i686"
2206 x86_64_select="i686"
2207 x86_64_suggest="fast_cmov"
2208
2209 amd3dnow_deps="mmx"
2210 amd3dnowext_deps="amd3dnow"
2211 i686_deps="x86"
2212 mmx_deps="x86"
2213 mmxext_deps="mmx"
2214 sse_deps="mmxext"
2215 sse2_deps="sse"
2216 sse3_deps="sse2"
2217 ssse3_deps="sse3"
2218 sse4_deps="ssse3"
2219 sse42_deps="sse4"
2220 aesni_deps="sse42"
2221 avx_deps="sse42"
2222 xop_deps="avx"
2223 fma3_deps="avx"
2224 fma4_deps="avx"
2225 avx2_deps="avx"
2226
2227 mmx_external_deps="yasm"
2228 mmx_inline_deps="inline_asm"
2229 mmx_suggest="mmx_external mmx_inline"
2230
2231 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2232     eval dep=\$${ext}_deps
2233     eval ${ext}_external_deps='"${dep}_external"'
2234     eval ${ext}_inline_deps='"${dep}_inline"'
2235     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2236 done
2237
2238 aligned_stack_if_any="aarch64 ppc x86"
2239 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2240 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2241 fast_unaligned_if_any="aarch64 ppc x86"
2242 simd_align_16_if_any="altivec neon sse"
2243
2244 # system capabilities
2245 symver_if_any="symver_asm_label symver_gnu_asm"
2246 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2247
2248 # threading support
2249 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2250 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2251 atomics_win32_if="MemoryBarrier"
2252 atomics_native_if_any="$ATOMICS_LIST"
2253 w32threads_deps="atomics_native"
2254 threads_if_any="$THREADS_LIST"
2255
2256 # subsystems
2257 dct_select="rdft"
2258 dirac_parse_select="golomb"
2259 error_resilience_select="me_cmp"
2260 faandct_deps="faan fdctdsp"
2261 faanidct_deps="faan idctdsp"
2262 h264dsp_select="startcode"
2263 frame_thread_encoder_deps="encoders threads"
2264 intrax8_select="blockdsp idctdsp"
2265 mdct_select="fft"
2266 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2267 mpeg_er_select="error_resilience"
2268 mpegaudio_select="mpegaudiodsp"
2269 mpegaudiodsp_select="dct"
2270 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2271 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2272 qsvdec_select="qsv"
2273 qsvenc_select="qsv"
2274 vc1dsp_select="h264chroma qpeldsp startcode"
2275 rdft_select="fft"
2276
2277 # decoders / encoders
2278 aac_decoder_select="imdct15 mdct sinewin"
2279 aac_fixed_decoder_select="mdct sinewin"
2280 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2281 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2282 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2283 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2284 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2285 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2286 adpcm_g722_decoder_select="g722dsp"
2287 adpcm_g722_encoder_select="g722dsp"
2288 aic_decoder_select="golomb idctdsp"
2289 alac_encoder_select="lpc"
2290 als_decoder_select="bswapdsp"
2291 amrnb_decoder_select="lsp"
2292 amrwb_decoder_select="lsp"
2293 amv_decoder_select="sp5x_decoder exif"
2294 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2295 ape_decoder_select="bswapdsp llauddsp"
2296 apng_decoder_select="zlib"
2297 apng_encoder_select="huffyuvencdsp zlib"
2298 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2299 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2300 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2301 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2302 atrac1_decoder_select="mdct sinewin"
2303 atrac3_decoder_select="mdct"
2304 atrac3p_decoder_select="mdct sinewin"
2305 avrn_decoder_select="exif jpegtables"
2306 bink_decoder_select="blockdsp hpeldsp"
2307 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2308 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2309 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2310 cllc_decoder_select="bswapdsp"
2311 comfortnoise_encoder_select="lpc"
2312 cook_decoder_select="audiodsp mdct sinewin"
2313 cscd_decoder_select="lzo"
2314 cscd_decoder_suggest="zlib"
2315 dca_decoder_select="mdct"
2316 dds_decoder_select="texturedsp"
2317 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2318 dnxhd_decoder_select="blockdsp idctdsp"
2319 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2320 dvvideo_decoder_select="dvprofile idctdsp"
2321 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2322 dxa_decoder_select="zlib"
2323 dxv_decoder_select="lzf texturedsp"
2324 eac3_decoder_select="ac3_decoder"
2325 eac3_encoder_select="ac3_encoder"
2326 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2327 eatgq_decoder_select="aandcttables"
2328 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2329 exr_decoder_select="zlib"
2330 ffv1_decoder_select="golomb rangecoder"
2331 ffv1_encoder_select="rangecoder"
2332 ffvhuff_decoder_select="huffyuv_decoder"
2333 ffvhuff_encoder_select="huffyuv_encoder"
2334 fic_decoder_select="golomb"
2335 flac_decoder_select="flacdsp golomb"
2336 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2337 flashsv2_decoder_select="zlib"
2338 flashsv2_encoder_select="zlib"
2339 flashsv_decoder_select="zlib"
2340 flashsv_encoder_select="zlib"
2341 flv_decoder_select="h263_decoder"
2342 flv_encoder_select="h263_encoder"
2343 fourxm_decoder_select="blockdsp bswapdsp"
2344 fraps_decoder_select="bswapdsp huffman"
2345 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2346 g729_decoder_select="audiodsp"
2347 h261_decoder_select="mpegvideo"
2348 h261_encoder_select="aandcttables mpegvideoenc"
2349 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2350 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2351 h263i_decoder_select="h263_decoder"
2352 h263p_decoder_select="h263_decoder"
2353 h263p_encoder_select="h263_encoder"
2354 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2355 h264_decoder_suggest="error_resilience"
2356 h264_qsv_decoder_deps="libmfx"
2357 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2358 h264_qsv_encoder_deps="libmfx"
2359 h264_qsv_encoder_select="qsvenc"
2360 hap_decoder_select="snappy texturedsp"
2361 hap_encoder_deps="libsnappy"
2362 hap_encoder_select="texturedspenc"
2363 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2364 hevc_qsv_decoder_deps="libmfx"
2365 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2366 hevc_qsv_encoder_deps="libmfx"
2367 hevc_qsv_encoder_select="qsvenc"
2368 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2369 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2370 iac_decoder_select="imc_decoder"
2371 imc_decoder_select="bswapdsp fft mdct sinewin"
2372 indeo3_decoder_select="hpeldsp"
2373 indeo4_decoder_select="ividsp"
2374 indeo5_decoder_select="ividsp"
2375 interplay_video_decoder_select="hpeldsp"
2376 jpegls_decoder_select="golomb mjpeg_decoder"
2377 jpegls_encoder_select="golomb"
2378 jv_decoder_select="blockdsp"
2379 lagarith_decoder_select="huffyuvdsp"
2380 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2381 loco_decoder_select="golomb"
2382 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2383 metasound_decoder_select="lsp mdct sinewin"
2384 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2385 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2386 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2387 mjpegb_decoder_select="mjpeg_decoder"
2388 mlp_decoder_select="mlp_parser"
2389 motionpixels_decoder_select="bswapdsp"
2390 mp1_decoder_select="mpegaudio"
2391 mp1float_decoder_select="mpegaudio"
2392 mp2_decoder_select="mpegaudio"
2393 mp2float_decoder_select="mpegaudio"
2394 mp3_decoder_select="mpegaudio"
2395 mp3adu_decoder_select="mpegaudio"
2396 mp3adufloat_decoder_select="mpegaudio"
2397 mp3float_decoder_select="mpegaudio"
2398 mp3on4_decoder_select="mpegaudio"
2399 mp3on4float_decoder_select="mpegaudio"
2400 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2401 mpc8_decoder_select="mpegaudiodsp"
2402 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2403 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2404 mpegvideo_decoder_select="mpegvideo"
2405 mpeg1video_decoder_select="mpegvideo"
2406 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2407 mpeg2video_decoder_select="mpegvideo"
2408 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2409 mpeg2_qsv_decoder_deps="libmfx"
2410 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2411 mpeg2_qsv_encoder_deps="libmfx"
2412 mpeg2_qsv_encoder_select="qsvenc"
2413 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2414 mpeg4_encoder_select="h263_encoder"
2415 msa1_decoder_select="mss34dsp"
2416 msmpeg4v1_decoder_select="h263_decoder"
2417 msmpeg4v2_decoder_select="h263_decoder"
2418 msmpeg4v2_encoder_select="h263_encoder"
2419 msmpeg4v3_decoder_select="h263_decoder"
2420 msmpeg4v3_encoder_select="h263_encoder"
2421 mss2_decoder_select="vc1_decoder mpegvideo"
2422 mts2_decoder_select="mss34dsp"
2423 mxpeg_decoder_select="mjpeg_decoder"
2424 nellymoser_decoder_select="mdct sinewin"
2425 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2426 nuv_decoder_select="idctdsp lzo"
2427 on2avc_decoder_select="mdct"
2428 opus_decoder_deps="swresample"
2429 opus_decoder_select="imdct15"
2430 png_decoder_select="zlib"
2431 png_encoder_select="huffyuvencdsp zlib"
2432 prores_decoder_select="blockdsp idctdsp"
2433 prores_encoder_select="fdctdsp"
2434 qcelp_decoder_select="lsp"
2435 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2436 ra_144_decoder_select="audiodsp"
2437 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2438 ralf_decoder_select="golomb"
2439 rawvideo_decoder_select="bswapdsp"
2440 rscc_decoder_select="zlib"
2441 rtjpeg_decoder_select="me_cmp"
2442 rv10_decoder_select="h263_decoder"
2443 rv10_encoder_select="h263_encoder"
2444 rv20_decoder_select="h263_decoder"
2445 rv20_encoder_select="h263_encoder"
2446 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2447 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2448 screenpresso_decoder_select="zlib"
2449 shorten_decoder_select="golomb"
2450 sipr_decoder_select="lsp"
2451 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2452 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2453 sonic_decoder_select="golomb rangecoder"
2454 sonic_encoder_select="golomb rangecoder"
2455 sonic_ls_encoder_select="golomb rangecoder"
2456 sp5x_decoder_select="mjpeg_decoder"
2457 svq1_decoder_select="hpeldsp"
2458 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2459 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2460 svq3_decoder_suggest="zlib"
2461 tak_decoder_select="audiodsp"
2462 tdsc_decoder_select="zlib mjpeg_decoder"
2463 theora_decoder_select="vp3_decoder"
2464 thp_decoder_select="mjpeg_decoder"
2465 tiff_decoder_suggest="zlib lzma"
2466 tiff_encoder_suggest="zlib"
2467 truehd_decoder_select="mlp_parser"
2468 truemotion2_decoder_select="bswapdsp"
2469 truespeech_decoder_select="bswapdsp"
2470 tscc_decoder_select="zlib"
2471 twinvq_decoder_select="mdct lsp sinewin"
2472 txd_decoder_select="texturedsp"
2473 utvideo_decoder_select="bswapdsp"
2474 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2475 vble_decoder_select="huffyuvdsp"
2476 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2477 vc1_qsv_decoder_deps="libmfx"
2478 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2479 vc1image_decoder_select="vc1_decoder"
2480 vorbis_decoder_select="mdct"
2481 vorbis_encoder_select="mdct"
2482 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2483 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2484 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2485 vp6a_decoder_select="vp6_decoder"
2486 vp6f_decoder_select="vp6_decoder"
2487 vp7_decoder_select="h264pred videodsp vp8dsp"
2488 vp8_decoder_select="h264pred videodsp vp8dsp"
2489 vp9_decoder_select="videodsp vp9_parser"
2490 webp_decoder_select="vp8_decoder exif"
2491 wmalossless_decoder_select="llauddsp"
2492 wmapro_decoder_select="mdct sinewin wma_freqs"
2493 wmav1_decoder_select="mdct sinewin wma_freqs"
2494 wmav1_encoder_select="mdct sinewin wma_freqs"
2495 wmav2_decoder_select="mdct sinewin wma_freqs"
2496 wmav2_encoder_select="mdct sinewin wma_freqs"
2497 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2498 wmv1_decoder_select="h263_decoder"
2499 wmv1_encoder_select="h263_encoder"
2500 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2501 wmv2_encoder_select="h263_encoder wmv2dsp"
2502 wmv3_decoder_select="vc1_decoder"
2503 wmv3image_decoder_select="wmv3_decoder"
2504 xma1_decoder_select="wmapro_decoder"
2505 xma2_decoder_select="wmapro_decoder"
2506 zerocodec_decoder_select="zlib"
2507 zlib_decoder_select="zlib"
2508 zlib_encoder_select="zlib"
2509 zmbv_decoder_select="zlib"
2510 zmbv_encoder_select="zlib"
2511
2512 # platform codecs
2513 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2514 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2515
2516 # hardware accelerators
2517 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2518 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2519 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2520 vaapi_deps="va_va_h"
2521 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2522 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2523 vda_deps="vda_framework pthreads"
2524 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2525 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2526 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2527 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2528 xvmc_deps="X11_extensions_XvMClib_h"
2529
2530 h263_vaapi_hwaccel_deps="vaapi"
2531 h263_vaapi_hwaccel_select="h263_decoder"
2532 h263_videotoolbox_hwaccel_deps="videotoolbox"
2533 h263_videotoolbox_hwaccel_select="h263_decoder"
2534 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2535 h264_d3d11va_hwaccel_deps="d3d11va"
2536 h264_d3d11va_hwaccel_select="h264_decoder"
2537 h264_dxva2_hwaccel_deps="dxva2"
2538 h264_dxva2_hwaccel_select="h264_decoder"
2539 h264_mediacodec_decoder_deps="mediacodec"
2540 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2541 h264_mmal_decoder_deps="mmal"
2542 h264_mmal_decoder_select="mmal"
2543 h264_mmal_hwaccel_deps="mmal"
2544 h264_qsv_hwaccel_deps="libmfx"
2545 h264_vaapi_hwaccel_deps="vaapi"
2546 h264_vaapi_hwaccel_select="h264_decoder"
2547 h264_vda_decoder_deps="vda"
2548 h264_vda_decoder_select="h264_decoder"
2549 h264_vda_hwaccel_deps="vda"
2550 h264_vda_hwaccel_select="h264_decoder"
2551 h264_vda_old_hwaccel_deps="vda"
2552 h264_vda_old_hwaccel_select="h264_decoder"
2553 h264_vdpau_decoder_deps="vdpau"
2554 h264_vdpau_decoder_select="h264_decoder"
2555 h264_vdpau_hwaccel_deps="vdpau"
2556 h264_vdpau_hwaccel_select="h264_decoder"
2557 h264_videotoolbox_hwaccel_deps="videotoolbox"
2558 h264_videotoolbox_hwaccel_select="h264_decoder"
2559 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2560 hevc_d3d11va_hwaccel_select="hevc_decoder"
2561 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2562 hevc_dxva2_hwaccel_select="hevc_decoder"
2563 hevc_qsv_hwaccel_deps="libmfx"
2564 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2565 hevc_vaapi_hwaccel_select="hevc_decoder"
2566 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2567 hevc_vdpau_hwaccel_select="hevc_decoder"
2568 mpeg_vdpau_decoder_deps="vdpau"
2569 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2570 mpeg_xvmc_hwaccel_deps="xvmc"
2571 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2572 mpeg1_vdpau_decoder_deps="vdpau"
2573 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2574 mpeg1_vdpau_hwaccel_deps="vdpau"
2575 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2576 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2577 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2578 mpeg1_xvmc_hwaccel_deps="xvmc"
2579 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2580 mpeg2_crystalhd_decoder_select="crystalhd"
2581 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2582 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2583 mpeg2_dxva2_hwaccel_deps="dxva2"
2584 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2585 mpeg2_mmal_decoder_deps="mmal"
2586 mpeg2_mmal_decoder_select="mmal"
2587 mpeg2_mmal_hwaccel_deps="mmal"
2588 mpeg2_qsv_hwaccel_deps="libmfx"
2589 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2590 mpeg2_vaapi_hwaccel_deps="vaapi"
2591 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2592 mpeg2_vdpau_hwaccel_deps="vdpau"
2593 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2594 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2595 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2596 mpeg2_xvmc_hwaccel_deps="xvmc"
2597 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2598 mpeg4_crystalhd_decoder_select="crystalhd"
2599 mpeg4_mmal_decoder_deps="mmal"
2600 mpeg4_mmal_decoder_select="mmal"
2601 mpeg4_mmal_hwaccel_deps="mmal"
2602 mpeg4_vaapi_hwaccel_deps="vaapi"
2603 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2604 mpeg4_vdpau_decoder_deps="vdpau"
2605 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2606 mpeg4_vdpau_hwaccel_deps="vdpau"
2607 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2608 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2609 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2610 msmpeg4_crystalhd_decoder_select="crystalhd"
2611 vc1_crystalhd_decoder_select="crystalhd"
2612 vc1_d3d11va_hwaccel_deps="d3d11va"
2613 vc1_d3d11va_hwaccel_select="vc1_decoder"
2614 vc1_dxva2_hwaccel_deps="dxva2"
2615 vc1_dxva2_hwaccel_select="vc1_decoder"
2616 vc1_mmal_decoder_deps="mmal"
2617 vc1_mmal_decoder_select="mmal"
2618 vc1_mmal_hwaccel_deps="mmal"
2619 vc1_qsv_hwaccel_deps="libmfx"
2620 vc1_qsv_hwaccel_select="qsvdec_vc1"
2621 vc1_vaapi_hwaccel_deps="vaapi"
2622 vc1_vaapi_hwaccel_select="vc1_decoder"
2623 vc1_vdpau_decoder_deps="vdpau"
2624 vc1_vdpau_decoder_select="vc1_decoder"
2625 vc1_vdpau_hwaccel_deps="vdpau"
2626 vc1_vdpau_hwaccel_select="vc1_decoder"
2627 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2628 vp9_d3d11va_hwaccel_select="vp9_decoder"
2629 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2630 vp9_dxva2_hwaccel_select="vp9_decoder"
2631 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2632 vp9_vaapi_hwaccel_select="vp9_decoder"
2633 wmv3_crystalhd_decoder_select="crystalhd"
2634 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2635 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2636 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2637 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2638 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2639
2640 # parsers
2641 h264_parser_select="h264_decoder"
2642 hevc_parser_select="golomb"
2643 mpegvideo_parser_select="mpegvideo"
2644 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2645 vc1_parser_select="vc1dsp"
2646
2647 # bitstream_filters
2648 mjpeg2jpeg_bsf_select="jpegtables"
2649
2650 # external libraries
2651 aac_at_decoder_deps="audiotoolbox"
2652 ac3_at_decoder_deps="audiotoolbox"
2653 ac3_at_decoder_select="ac3_parser"
2654 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2655 alac_at_decoder_deps="audiotoolbox"
2656 amr_nb_at_decoder_deps="audiotoolbox"
2657 eac3_at_decoder_deps="audiotoolbox"
2658 eac3_at_decoder_select="ac3_parser"
2659 gsm_ms_at_decoder_deps="audiotoolbox"
2660 ilbc_at_decoder_deps="audiotoolbox"
2661 mp1_at_decoder_deps="audiotoolbox"
2662 mp2_at_decoder_deps="audiotoolbox"
2663 mp3_at_decoder_deps="audiotoolbox"
2664 pcm_alaw_at_decoder_deps="audiotoolbox"
2665 pcm_mulaw_at_decoder_deps="audiotoolbox"
2666 qdmc_at_decoder_deps="audiotoolbox"
2667 qdm2_at_decoder_deps="audiotoolbox"
2668 aac_at_encoder_deps="audiotoolbox"
2669 aac_at_encoder_select="audio_frame_queue"
2670 alac_at_encoder_deps="audiotoolbox"
2671 alac_at_encoder_select="audio_frame_queue"
2672 ilbc_at_encoder_deps="audiotoolbox"
2673 ilbc_at_encoder_select="audio_frame_queue"
2674 pcm_alaw_at_encoder_deps="audiotoolbox"
2675 pcm_alaw_at_encoder_select="audio_frame_queue"
2676 pcm_mulaw_at_encoder_deps="audiotoolbox"
2677 pcm_mulaw_at_encoder_select="audio_frame_queue"
2678 chromaprint_muxer_deps="chromaprint"
2679 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2680 libcelt_decoder_deps="libcelt"
2681 libfaac_encoder_deps="libfaac"
2682 libfaac_encoder_select="audio_frame_queue"
2683 libfdk_aac_decoder_deps="libfdk_aac"
2684 libfdk_aac_encoder_deps="libfdk_aac"
2685 libfdk_aac_encoder_select="audio_frame_queue"
2686 libgme_demuxer_deps="libgme"
2687 libgsm_decoder_deps="libgsm"
2688 libgsm_encoder_deps="libgsm"
2689 libgsm_ms_decoder_deps="libgsm"
2690 libgsm_ms_encoder_deps="libgsm"
2691 libilbc_decoder_deps="libilbc"
2692 libilbc_encoder_deps="libilbc"
2693 libkvazaar_encoder_deps="libkvazaar"
2694 libmodplug_demuxer_deps="libmodplug"
2695 libmp3lame_encoder_deps="libmp3lame"
2696 libmp3lame_encoder_select="audio_frame_queue"
2697 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2698 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2699 libopencore_amrnb_encoder_select="audio_frame_queue"
2700 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2701 libopenh264_encoder_deps="libopenh264"
2702 libopenjpeg_decoder_deps="libopenjpeg"
2703 libopenjpeg_encoder_deps="libopenjpeg"
2704 libopus_decoder_deps="libopus"
2705 libopus_encoder_deps="libopus"
2706 libopus_encoder_select="audio_frame_queue"
2707 libschroedinger_decoder_deps="libschroedinger"
2708 libschroedinger_encoder_deps="libschroedinger"
2709 libshine_encoder_deps="libshine"
2710 libshine_encoder_select="audio_frame_queue"
2711 libspeex_decoder_deps="libspeex"
2712 libspeex_encoder_deps="libspeex"
2713 libspeex_encoder_select="audio_frame_queue"
2714 libtheora_encoder_deps="libtheora"
2715 libtwolame_encoder_deps="libtwolame"
2716 libutvideo_decoder_deps="libutvideo"
2717 libutvideo_encoder_deps="libutvideo"
2718 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2719 libvorbis_decoder_deps="libvorbis"
2720 libvorbis_encoder_deps="libvorbis"
2721 libvorbis_encoder_select="audio_frame_queue"
2722 libvpx_vp8_decoder_deps="libvpx"
2723 libvpx_vp8_encoder_deps="libvpx"
2724 libvpx_vp9_decoder_deps="libvpx"
2725 libvpx_vp9_encoder_deps="libvpx"
2726 libwavpack_encoder_deps="libwavpack"
2727 libwebp_encoder_deps="libwebp"
2728 libwebp_anim_encoder_deps="libwebp"
2729 libx262_encoder_deps="libx262"
2730 libx264_encoder_deps="libx264"
2731 libx264rgb_encoder_deps="libx264"
2732 libx264rgb_encoder_select="libx264_encoder"
2733 libx265_encoder_deps="libx265"
2734 libxavs_encoder_deps="libxavs"
2735 libxvid_encoder_deps="libxvid"
2736 libzvbi_teletext_decoder_deps="libzvbi"
2737 nvenc_encoder_deps="nvenc"
2738 nvenc_h264_encoder_deps="nvenc"
2739 nvenc_hevc_encoder_deps="nvenc"
2740 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2741 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2742 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2743 videotoolbox_encoder_suggest="vda_framework"
2744
2745 # demuxers / muxers
2746 ac3_demuxer_select="ac3_parser"
2747 asf_demuxer_select="riffdec"
2748 asf_o_demuxer_select="riffdec"
2749 asf_muxer_select="riffenc"
2750 asf_stream_muxer_select="asf_muxer"
2751 avi_demuxer_select="iso_media riffdec exif"
2752 avi_muxer_select="riffenc"
2753 avisynth_demuxer_deps="avisynth"
2754 avisynth_demuxer_select="riffdec"
2755 caf_demuxer_select="iso_media riffdec"
2756 dash_muxer_select="mp4_muxer"
2757 dirac_demuxer_select="dirac_parser"
2758 dts_demuxer_select="dca_parser"
2759 dtshd_demuxer_select="dca_parser"
2760 dv_demuxer_select="dvprofile"
2761 dv_muxer_select="dvprofile"
2762 dxa_demuxer_select="riffdec"
2763 eac3_demuxer_select="ac3_parser"
2764 f4v_muxer_select="mov_muxer"
2765 flac_demuxer_select="flac_parser"
2766 hds_muxer_select="flv_muxer"
2767 hls_muxer_select="mpegts_muxer"
2768 image2_alias_pix_demuxer_select="image2_demuxer"
2769 image2_brender_pix_demuxer_select="image2_demuxer"
2770 ipod_muxer_select="mov_muxer"
2771 ismv_muxer_select="mov_muxer"
2772 libnut_demuxer_deps="libnut"
2773 libnut_muxer_deps="libnut"
2774 matroska_audio_muxer_select="matroska_muxer"
2775 matroska_demuxer_select="iso_media riffdec"
2776 matroska_demuxer_suggest="bzlib lzo zlib"
2777 matroska_muxer_select="iso_media riffenc"
2778 mmf_muxer_select="riffenc"
2779 mov_demuxer_select="iso_media riffdec"
2780 mov_demuxer_suggest="zlib"
2781 mov_muxer_select="iso_media riffenc rtpenc_chain"
2782 mp3_demuxer_select="mpegaudio_parser"
2783 mp4_muxer_select="mov_muxer"
2784 mpegts_demuxer_select="iso_media"
2785 mpegts_muxer_select="adts_muxer latm_muxer"
2786 mpegtsraw_demuxer_select="mpegts_demuxer"
2787 mxf_d10_muxer_select="mxf_muxer"
2788 mxf_opatom_muxer_select="mxf_muxer"
2789 nut_muxer_select="riffenc"
2790 nuv_demuxer_select="riffdec"
2791 oga_muxer_select="ogg_muxer"
2792 ogg_demuxer_select="dirac_parse"
2793 opus_muxer_select="ogg_muxer"
2794 psp_muxer_select="mov_muxer"
2795 rtp_demuxer_select="sdp_demuxer"
2796 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2797 rtsp_demuxer_select="http_protocol rtpdec"
2798 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2799 sap_demuxer_select="sdp_demuxer"
2800 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2801 sdp_demuxer_select="rtpdec"
2802 smoothstreaming_muxer_select="ismv_muxer"
2803 spdif_muxer_select="aac_parser"
2804 spx_muxer_select="ogg_muxer"
2805 swf_demuxer_suggest="zlib"
2806 tak_demuxer_select="tak_parser"
2807 tg2_muxer_select="mov_muxer"
2808 tgp_muxer_select="mov_muxer"
2809 vobsub_demuxer_select="mpegps_demuxer"
2810 w64_demuxer_select="wav_demuxer"
2811 w64_muxer_select="wav_muxer"
2812 wav_demuxer_select="riffdec"
2813 wav_muxer_select="riffenc"
2814 webm_muxer_select="iso_media riffenc"
2815 webm_dash_manifest_demuxer_select="matroska_demuxer"
2816 wtv_demuxer_select="mpegts_demuxer riffdec"
2817 wtv_muxer_select="mpegts_muxer riffenc"
2818 xmv_demuxer_select="riffdec"
2819 xwma_demuxer_select="riffdec"
2820
2821 # indevs / outdevs
2822 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2823 alsa_outdev_deps="alsa_asoundlib_h"
2824 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2825 avfoundation_indev_select="avfoundation"
2826 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2827 caca_outdev_deps="libcaca"
2828 decklink_indev_deps="decklink pthreads"
2829 decklink_indev_extralibs="-lstdc++"
2830 decklink_outdev_deps="decklink pthreads"
2831 decklink_outdev_extralibs="-lstdc++"
2832 dshow_indev_deps="IBaseFilter"
2833 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2834 dv1394_indev_deps="dv1394"
2835 dv1394_indev_select="dv_demuxer"
2836 fbdev_indev_deps="linux_fb_h"
2837 fbdev_outdev_deps="linux_fb_h"
2838 gdigrab_indev_deps="CreateDIBSection"
2839 gdigrab_indev_extralibs="-lgdi32"
2840 gdigrab_indev_select="bmp_decoder"
2841 iec61883_indev_deps="libiec61883"
2842 jack_indev_deps="jack_jack_h"
2843 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2844 lavfi_indev_deps="avfilter"
2845 libcdio_indev_deps="libcdio"
2846 libdc1394_indev_deps="libdc1394"
2847 libv4l2_indev_deps="libv4l2"
2848 openal_indev_deps="openal"
2849 opengl_outdev_deps="opengl"
2850 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2851 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2852 pulse_indev_deps="libpulse"
2853 pulse_outdev_deps="libpulse"
2854 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2855 qtkit_indev_select="qtkit"
2856 sdl_outdev_deps="sdl"
2857 sndio_indev_deps="sndio_h"
2858 sndio_outdev_deps="sndio_h"
2859 v4l_indev_deps="linux_videodev_h"
2860 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2861 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2862 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2863 vfwcap_indev_extralibs="-lavicap32"
2864 x11grab_indev_deps="x11grab"
2865 x11grab_xcb_indev_deps="libxcb"
2866 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2867 xv_outdev_extralibs="-lXv -lX11 -lXext"
2868
2869 # protocols
2870 async_protocol_deps="threads"
2871 bluray_protocol_deps="libbluray"
2872 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2873 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2874 ffrtmpcrypt_protocol_select="tcp_protocol"
2875 ffrtmphttp_protocol_deps="!librtmp_protocol"
2876 ffrtmphttp_protocol_select="http_protocol"
2877 ftp_protocol_select="tcp_protocol"
2878 gopher_protocol_select="network"
2879 http_protocol_select="tcp_protocol"
2880 httpproxy_protocol_select="tcp_protocol"
2881 https_protocol_select="tls_protocol"
2882 icecast_protocol_select="http_protocol"
2883 librtmp_protocol_deps="librtmp"
2884 librtmpe_protocol_deps="librtmp"
2885 librtmps_protocol_deps="librtmp"
2886 librtmpt_protocol_deps="librtmp"
2887 librtmpte_protocol_deps="librtmp"
2888 libsmbclient_protocol_deps="libsmbclient gplv3"
2889 libssh_protocol_deps="libssh"
2890 mmsh_protocol_select="http_protocol"
2891 mmst_protocol_select="network"
2892 rtmp_protocol_deps="!librtmp_protocol"
2893 rtmp_protocol_select="tcp_protocol"
2894 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2895 rtmps_protocol_deps="!librtmp_protocol"
2896 rtmps_protocol_select="tls_protocol"
2897 rtmpt_protocol_select="ffrtmphttp_protocol"
2898 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2899 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2900 rtp_protocol_select="udp_protocol"
2901 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2902 sctp_protocol_select="network"
2903 srtp_protocol_select="rtp_protocol srtp"
2904 tcp_protocol_select="network"
2905 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2906 tls_gnutls_protocol_select="tcp_protocol"
2907 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2908 tls_openssl_protocol_select="tcp_protocol"
2909 tls_schannel_protocol_deps="schannel"
2910 tls_schannel_protocol_select="tcp_protocol"
2911 tls_securetransport_protocol_deps="securetransport"
2912 tls_securetransport_protocol_select="tcp_protocol"
2913 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2914 udp_protocol_select="network"
2915 udplite_protocol_select="network"
2916 unix_protocol_deps="sys_un_h"
2917 unix_protocol_select="network"
2918
2919 # filters
2920 afftfilt_filter_deps="avcodec"
2921 afftfilt_filter_select="fft"
2922 amovie_filter_deps="avcodec avformat"
2923 aresample_filter_deps="swresample"
2924 ass_filter_deps="libass"
2925 asyncts_filter_deps="avresample"
2926 atempo_filter_deps="avcodec"
2927 atempo_filter_select="rdft"
2928 azmq_filter_deps="libzmq"
2929 blackframe_filter_deps="gpl"
2930 boxblur_filter_deps="gpl"
2931 bs2b_filter_deps="libbs2b"
2932 colormatrix_filter_deps="gpl"
2933 cover_rect_filter_deps="avcodec avformat gpl"
2934 cropdetect_filter_deps="gpl"
2935 delogo_filter_deps="gpl"
2936 deshake_filter_select="pixelutils"
2937 drawtext_filter_deps="libfreetype"
2938 ebur128_filter_deps="gpl"
2939 eq_filter_deps="gpl"
2940 fftfilt_filter_deps="avcodec"
2941 fftfilt_filter_select="rdft"
2942 find_rect_filter_deps="avcodec avformat gpl"
2943 firequalizer_filter_deps="avcodec"
2944 firequalizer_filter_select="rdft"
2945 flite_filter_deps="libflite"
2946 frei0r_filter_deps="frei0r dlopen"
2947 frei0r_src_filter_deps="frei0r dlopen"
2948 fspp_filter_deps="gpl"
2949 geq_filter_deps="gpl"
2950 histeq_filter_deps="gpl"
2951 hqdn3d_filter_deps="gpl"
2952 hwupload_cuda_filter_deps="cuda"
2953 interlace_filter_deps="gpl"
2954 kerndeint_filter_deps="gpl"
2955 ladspa_filter_deps="ladspa dlopen"
2956 mcdeint_filter_deps="avcodec gpl"
2957 movie_filter_deps="avcodec avformat"
2958 mpdecimate_filter_deps="gpl"
2959 mpdecimate_filter_select="pixelutils"
2960 mptestsrc_filter_deps="gpl"
2961 negate_filter_deps="lut_filter"
2962 nnedi_filter_deps="gpl"
2963 ocr_filter_deps="libtesseract"
2964 ocv_filter_deps="libopencv"
2965 owdenoise_filter_deps="gpl"
2966 pan_filter_deps="swresample"
2967 perspective_filter_deps="gpl"
2968 phase_filter_deps="gpl"
2969 pp7_filter_deps="gpl"
2970 pp_filter_deps="gpl postproc"
2971 pullup_filter_deps="gpl"
2972 removelogo_filter_deps="avcodec avformat swscale"
2973 repeatfields_filter_deps="gpl"
2974 resample_filter_deps="avresample"
2975 rubberband_filter_deps="librubberband"
2976 sab_filter_deps="gpl swscale"
2977 scale2ref_filter_deps="swscale"
2978 scale_filter_deps="swscale"
2979 select_filter_select="pixelutils"
2980 showcqt_filter_deps="avcodec avformat swscale"
2981 showcqt_filter_select="fft"
2982 showfreqs_filter_deps="avcodec"
2983 showfreqs_filter_select="fft"
2984 showspectrum_filter_deps="avcodec"
2985 showspectrum_filter_select="fft"
2986 showspectrumpic_filter_deps="avcodec"
2987 showspectrumpic_filter_select="fft"
2988 smartblur_filter_deps="gpl swscale"
2989 sofalizer_filter_deps="netcdf avcodec"
2990 sofalizer_filter_select="fft"
2991 spectrumsynth_filter_deps="avcodec"
2992 spectrumsynth_filter_select="fft"
2993 spp_filter_deps="gpl avcodec"
2994 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2995 stereo3d_filter_deps="gpl"
2996 subtitles_filter_deps="avformat avcodec libass"
2997 super2xsai_filter_deps="gpl"
2998 pixfmts_super2xsai_test_deps="super2xsai_filter"
2999 tinterlace_filter_deps="gpl"
3000 tinterlace_merge_test_deps="tinterlace_filter"
3001 tinterlace_pad_test_deps="tinterlace_filter"
3002 uspp_filter_deps="gpl avcodec"
3003 vidstabdetect_filter_deps="libvidstab"
3004 vidstabtransform_filter_deps="libvidstab"
3005 zmq_filter_deps="libzmq"
3006 zoompan_filter_deps="swscale"
3007 zscale_filter_deps="libzimg"
3008 scale_npp_filter_deps="cuda libnpp"
3009 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3010
3011 # examples
3012 avcodec_example_deps="avcodec avutil"
3013 avio_dir_cmd="avformat avutil"
3014 avio_reading="avformat avcodec avutil"
3015 decoding_encoding_example_deps="avcodec avformat avutil"
3016 demuxing_decoding_example_deps="avcodec avformat avutil"
3017 extract_mvs_example_deps="avcodec avformat avutil"
3018 filter_audio_example_deps="avfilter avutil"
3019 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3020 filtering_video_example_deps="avfilter avcodec avformat avutil"
3021 metadata_example_deps="avformat avutil"
3022 muxing_example_deps="avcodec avformat avutil swscale"
3023 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3024 remuxing_example_deps="avcodec avformat avutil"
3025 resampling_audio_example_deps="avutil swresample"
3026 scaling_video_example_deps="avutil swscale"
3027 transcode_aac_example_deps="avcodec avformat swresample"
3028 transcoding_example_deps="avfilter avcodec avformat avutil"
3029
3030 # libraries, in linking order
3031 avcodec_deps="avutil"
3032 avdevice_deps="avformat avcodec avutil"
3033 avfilter_deps="avutil"
3034 avformat_deps="avcodec avutil"
3035 avresample_deps="avutil"
3036 postproc_deps="avutil gpl"
3037 swresample_deps="avutil"
3038 swscale_deps="avutil"
3039
3040 # programs
3041 ffmpeg_deps="avcodec avfilter avformat swresample"
3042 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3043                null_filter
3044                setpts_filter trim_filter"
3045 ffplay_deps="avcodec avformat swscale swresample sdl"
3046 ffplay_libs='$sdl_libs'
3047 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3048 ffprobe_deps="avcodec avformat"
3049 ffserver_deps="avformat fork sarestart"
3050 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3051
3052 # documentation
3053 podpages_deps="perl"
3054 manpages_deps="perl pod2man"
3055 htmlpages_deps="perl"
3056 htmlpages_deps_any="makeinfo_html texi2html"
3057 txtpages_deps="perl makeinfo"
3058 doc_deps_any="manpages htmlpages podpages txtpages"
3059
3060 # default parameters
3061
3062 logfile="config.log"
3063
3064 # installation paths
3065 prefix_default="/usr/local"
3066 bindir_default='${prefix}/bin'
3067 datadir_default='${prefix}/share/ffmpeg'
3068 docdir_default='${prefix}/share/doc/ffmpeg'
3069 incdir_default='${prefix}/include'
3070 libdir_default='${prefix}/lib'
3071 mandir_default='${prefix}/share/man'
3072
3073 # toolchain
3074 ar_default="ar"
3075 cc_default="gcc"
3076 cxx_default="g++"
3077 host_cc_default="gcc"
3078 cp_f="cp -f"
3079 doxygen_default="doxygen"
3080 install="install"
3081 ln_s="ln -s -f"
3082 nm_default="nm -g"
3083 objformat="elf"
3084 pkg_config_default=pkg-config
3085 ranlib_default="ranlib"
3086 strip_default="strip"
3087 yasmexe_default="yasm"
3088 windres_default="windres"
3089
3090 # OS
3091 target_os_default=$(tolower $(uname -s))
3092 host_os=$target_os_default
3093
3094 # machine
3095 if test "$target_os_default" = aix; then
3096     arch_default=$(uname -p)
3097     strip_default="strip -X32_64"
3098 else
3099     arch_default=$(uname -m)
3100 fi
3101 cpu="generic"
3102 intrinsics="none"
3103
3104 # configurable options
3105 enable $PROGRAM_LIST
3106 enable $DOCUMENT_LIST
3107 enable $EXAMPLE_LIST
3108 enable $(filter_out avresample $LIBRARY_LIST)
3109 enable stripping
3110
3111 enable asm
3112 enable debug
3113 enable doc
3114 enable faan faandct faanidct
3115 enable optimizations
3116 enable runtime_cpudetect
3117 enable safe_bitstream_reader
3118 enable static
3119 enable swscale_alpha
3120 enable valgrind_backtrace
3121
3122 sws_max_filter_size_default=256
3123 set_default sws_max_filter_size
3124
3125 # Enable platform codecs by default.
3126 enable audiotoolbox
3127
3128 # Enable hwaccels by default.
3129 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3130 enable xlib
3131
3132 enable vda_framework videotoolbox videotoolbox_encoder
3133
3134 # build settings
3135 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3136 LIBPREF="lib"
3137 LIBSUF=".a"
3138 FULLNAME='$(NAME)$(BUILDSUF)'
3139 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3140 SLIBPREF="lib"
3141 SLIBSUF=".so"
3142 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3143 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3144 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3145 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3146 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3147 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3148
3149 asflags_filter=echo
3150 cflags_filter=echo
3151 ldflags_filter=echo
3152
3153 AS_C='-c'
3154 AS_O='-o $@'
3155 CC_C='-c'
3156 CC_E='-E -o $@'
3157 CC_O='-o $@'
3158 CXX_C='-c'
3159 CXX_O='-o $@'
3160 OBJCC_C='-c'
3161 OBJCC_E='-E -o $@'
3162 OBJCC_O='-o $@'
3163 LD_O='-o $@'
3164 LD_LIB='-l%'
3165 LD_PATH='-L'
3166 HOSTCC_C='-c'
3167 HOSTCC_E='-E -o $@'
3168 HOSTCC_O='-o $@'
3169 HOSTLD_O='-o $@'
3170
3171 host_libs='-lm'
3172 host_cflags_filter=echo
3173 host_ldflags_filter=echo
3174
3175 target_path='$(CURDIR)'
3176
3177 # since the object filename is not given with the -MM flag, the compiler
3178 # is only able to print the basename, and we must add the path ourselves
3179 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3180 DEPFLAGS='-MM'
3181
3182 # find source path
3183 if test -f configure; then
3184     source_path=.
3185 else
3186     source_path=$(cd $(dirname "$0"); pwd)
3187     case "$source_path" in
3188         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3189     esac
3190     test -e "$source_path/config.h" &&
3191         die "Out of tree builds are impossible with config.h in source dir."
3192 fi
3193
3194 for v in "$@"; do
3195     r=${v#*=}
3196     l=${v%"$r"}
3197     r=$(sh_quote "$r")
3198     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3199 done
3200
3201 find_things(){
3202     thing=$1
3203     pattern=$2
3204     file=$source_path/$3
3205     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3206 }
3207
3208 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3209 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3210 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3211 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3212 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3213 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3214 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3215 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3216 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3217
3218 find_things_extern(){
3219     thing=$1
3220     pattern=$2
3221     file=$source_path/$3
3222     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3223 }
3224
3225 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3226 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3227
3228 ALL_COMPONENTS="
3229     $BSF_LIST
3230     $DECODER_LIST
3231     $DEMUXER_LIST
3232     $ENCODER_LIST
3233     $FILTER_LIST
3234     $HWACCEL_LIST
3235     $INDEV_LIST
3236     $MUXER_LIST
3237     $OUTDEV_LIST
3238     $PARSER_LIST
3239     $PROTOCOL_LIST
3240 "
3241
3242 for n in $COMPONENT_LIST; do
3243     v=$(toupper ${n%s})_LIST
3244     eval enable \$$v
3245     eval ${n}_if_any="\$$v"
3246 done
3247
3248 enable $ARCH_EXT_LIST
3249
3250 die_unknown(){
3251     echo "Unknown option \"$1\"."
3252     echo "See $0 --help for available options."
3253     exit 1
3254 }
3255
3256 print_in_columns() {
3257     cols=$(expr $ncols / 24)
3258     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3259 }
3260
3261 show_list() {
3262     suffix=_$1
3263     shift
3264     echo $* | sed s/$suffix//g | print_in_columns
3265     exit 0
3266 }
3267
3268 rand_list(){
3269     IFS=', '
3270     set -- $*
3271     unset IFS
3272     for thing; do
3273         comp=${thing%:*}
3274         prob=${thing#$comp}
3275         prob=${prob#:}
3276         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3277         echo "prob ${prob:-0.5}"
3278         printf '%s\n' $comp
3279     done
3280 }
3281
3282 do_random(){
3283     action=$1
3284     shift
3285     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3286     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3287 }
3288
3289 for opt do
3290     optval="${opt#*=}"
3291     case "$opt" in
3292         --extra-ldflags=*)
3293             add_ldflags $optval
3294         ;;
3295         --extra-ldexeflags=*)
3296             add_ldexeflags $optval
3297         ;;
3298         --extra-ldlibflags=*)
3299             add_ldlibflags $optval
3300         ;;
3301         --extra-libs=*)
3302             add_extralibs $optval
3303         ;;
3304         --disable-devices)
3305             disable $INDEV_LIST $OUTDEV_LIST
3306         ;;
3307         --enable-debug=*)
3308             debuglevel="$optval"
3309         ;;
3310         --disable-programs)
3311             disable $PROGRAM_LIST
3312         ;;
3313         --disable-everything)
3314             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3315         ;;
3316         --disable-all)
3317             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3318             disable $LIBRARY_LIST $PROGRAM_LIST doc
3319             enable avutil
3320         ;;
3321         --enable-random|--disable-random)
3322             action=${opt%%-random}
3323             do_random ${action#--} $COMPONENT_LIST
3324         ;;
3325         --enable-random=*|--disable-random=*)
3326             action=${opt%%-random=*}
3327             do_random ${action#--} $optval
3328         ;;
3329         --enable-*=*|--disable-*=*)
3330             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3331             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3332             eval list=\$$(toupper $thing)_LIST
3333             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3334             list=$(filter "$name" $list)
3335             [ "$list" = "" ] && warn "Option $opt did not match anything"
3336             $action $list
3337         ;;
3338         --enable-?*|--disable-?*)
3339             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3340             if is_in $option $COMPONENT_LIST; then
3341                 test $action = disable && action=unset
3342                 eval $action \$$(toupper ${option%s})_LIST
3343             elif is_in $option $CMDLINE_SELECT; then
3344                 $action $option
3345             else
3346                 die_unknown $opt
3347             fi
3348         ;;
3349         --list-*)
3350             NAME="${opt#--list-}"
3351             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3352             NAME=${NAME%s}
3353             eval show_list $NAME \$$(toupper $NAME)_LIST
3354         ;;
3355         --help|-h) show_help
3356         ;;
3357         --fatal-warnings) enable fatal_warnings
3358         ;;
3359         *)
3360             optname="${opt%%=*}"
3361             optname="${optname#--}"
3362             optname=$(echo "$optname" | sed 's/-/_/g')
3363             if is_in $optname $CMDLINE_SET; then
3364                 eval $optname='$optval'
3365             elif is_in $optname $CMDLINE_APPEND; then
3366                 append $optname "$optval"
3367             else
3368                 die_unknown $opt
3369             fi
3370         ;;
3371     esac
3372 done
3373
3374 for e in $env; do
3375     eval "export $e"
3376 done
3377
3378 disabled logging && logfile=/dev/null
3379
3380 # Disable all the library-specific components if the library itself
3381 # is disabled, see AVCODEC_LIST and following _LIST variables.
3382
3383 disable_components(){
3384     disabled ${1} && disable $(
3385         eval components="\$$(toupper ${1})_COMPONENTS"
3386         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3387     )
3388 }
3389
3390 map 'disable_components $v' $LIBRARY_LIST
3391
3392 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3393 set >> $logfile
3394
3395 test -n "$valgrind" && toolchain="valgrind-memcheck"
3396
3397 case "$toolchain" in
3398     *-asan)
3399         cc_default="${toolchain%-asan}"
3400         add_cflags  -fsanitize=address
3401         add_ldflags -fsanitize=address
3402     ;;
3403     *-msan)
3404         cc_default="${toolchain%-msan}"
3405         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3406         add_ldflags -fsanitize=memory
3407     ;;
3408     *-tsan)
3409         cc_default="${toolchain%-tsan}"
3410         add_cflags  -fsanitize=thread -pie
3411         add_ldflags -fsanitize=thread -pie
3412         case "$toolchain" in
3413             gcc-tsan)
3414                 add_cflags  -fPIC
3415                 add_ldflags -fPIC
3416                 ;;
3417         esac
3418     ;;
3419     *-usan)
3420         cc_default="${toolchain%-usan}"
3421         add_cflags  -fsanitize=undefined
3422         add_ldflags -fsanitize=undefined
3423     ;;
3424     valgrind-*)
3425         target_exec_default="valgrind"
3426         case "$toolchain" in
3427             valgrind-massif)
3428                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3429                 ;;
3430             valgrind-memcheck)
3431                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3432                 ;;
3433         esac
3434     ;;
3435     msvc)
3436         # Check whether the current MSVC version needs the C99 converter.
3437         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3438         # support enough of C99 to build ffmpeg. Default to the new
3439         # behaviour if the regexp was unable to match anything, since this
3440         # successfully parses the version number of existing supported
3441         # versions that require the converter (MSVC 2010 and 2012).
3442         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3443         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3444             cc_default="cl"
3445         else
3446             cc_default="c99wrap cl"
3447         fi
3448         ld_default="$source_path/compat/windows/mslink"
3449         nm_default="dumpbin -symbols"
3450         ar_default="lib"
3451         case "$arch" in
3452         arm*)
3453             as_default="armasm"
3454             ;;
3455         esac
3456         target_os_default="win32"
3457         # Use a relative path for TMPDIR. This makes sure all the
3458         # ffconf temp files are written with a relative path, avoiding
3459         # issues with msys/win32 path conversion for MSVC parameters
3460         # such as -Fo<file> or -out:<file>.
3461         TMPDIR=.
3462     ;;
3463     icl)
3464         cc_default="icl"
3465         ld_default="xilink"
3466         nm_default="dumpbin -symbols"
3467         ar_default="xilib"
3468         target_os_default="win32"
3469         TMPDIR=.
3470     ;;
3471     gcov)
3472         add_cflags  -fprofile-arcs -ftest-coverage
3473         add_ldflags -fprofile-arcs -ftest-coverage
3474     ;;
3475     llvm-cov)
3476         add_cflags -fprofile-arcs -ftest-coverage
3477         add_ldflags --coverage
3478     ;;
3479     hardened)
3480         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3481         add_cflags   -fno-strict-overflow -fstack-protector-all
3482         add_ldflags  -Wl,-z,relro -Wl,-z,now
3483     ;;
3484     ?*)
3485         die "Unknown toolchain $toolchain"
3486     ;;
3487 esac
3488
3489 test -n "$cross_prefix" && enable cross_compile
3490
3491 if enabled cross_compile; then
3492     test -n "$arch" && test -n "$target_os" ||
3493         die "Must specify target arch and OS when cross-compiling"
3494 fi
3495
3496 ar_default="${cross_prefix}${ar_default}"
3497 cc_default="${cross_prefix}${cc_default}"
3498 cxx_default="${cross_prefix}${cxx_default}"
3499 nm_default="${cross_prefix}${nm_default}"
3500 pkg_config_default="${cross_prefix}${pkg_config_default}"
3501 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3502     ranlib_default="${cross_prefix}${ranlib_default} -D"
3503 else
3504     ranlib_default="${cross_prefix}${ranlib_default}"
3505 fi
3506 strip_default="${cross_prefix}${strip_default}"
3507 windres_default="${cross_prefix}${windres_default}"
3508
3509 sysinclude_default="${sysroot}/usr/include"
3510
3511 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3512     target_exec target_os yasmexe
3513 enabled cross_compile || host_cc_default=$cc
3514 set_default host_cc
3515
3516 pkg_config_fail_message=""
3517 if ! $pkg_config --version >/dev/null 2>&1; then
3518     warn "$pkg_config not found, library detection may fail."
3519     pkg_config=false
3520 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3521     pkg_config_fail_message="
3522 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3523 fi
3524
3525 if test $doxygen != $doxygen_default && \
3526   ! $doxygen --version >/dev/null 2>&1; then
3527     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3528 fi
3529
3530 exesuf() {
3531     case $1 in
3532         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3533     esac
3534 }
3535
3536 EXESUF=$(exesuf $target_os)
3537 HOSTEXESUF=$(exesuf $host_os)
3538
3539 # set temporary file name
3540 : ${TMPDIR:=$TEMPDIR}
3541 : ${TMPDIR:=$TMP}
3542 : ${TMPDIR:=/tmp}
3543
3544 if [ -n "$tempprefix" ] ; then
3545     mktemp(){
3546         echo $tempprefix.${HOSTNAME}.${UID}
3547     }
3548 elif ! check_cmd mktemp -u XXXXXX; then
3549     # simple replacement for missing mktemp
3550     # NOT SAFE FOR GENERAL USE
3551     mktemp(){
3552         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3553     }
3554 fi
3555
3556 tmpfile(){
3557     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3558         (set -C; exec > $tmp) 2>/dev/null ||
3559         die "Unable to create temporary file in $TMPDIR."
3560     append TMPFILES $tmp
3561     eval $1=$tmp
3562 }
3563
3564 trap 'rm -f -- $TMPFILES' EXIT
3565
3566 tmpfile TMPASM .asm
3567 tmpfile TMPC   .c
3568 tmpfile TMPCPP .cpp
3569 tmpfile TMPE   $EXESUF
3570 tmpfile TMPH   .h
3571 tmpfile TMPM   .m
3572 tmpfile TMPO   .o
3573 tmpfile TMPS   .S
3574 tmpfile TMPSH  .sh
3575 tmpfile TMPV   .ver
3576
3577 unset -f mktemp
3578
3579 chmod +x $TMPE
3580
3581 # make sure we can execute files in $TMPDIR
3582 cat > $TMPSH 2>> $logfile <<EOF
3583 #! /bin/sh
3584 EOF
3585 chmod +x $TMPSH >> $logfile 2>&1
3586 if ! $TMPSH >> $logfile 2>&1; then
3587     cat <<EOF
3588 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3589 variable to another directory and make sure that it is not mounted noexec.
3590 EOF
3591     die "Sanity test failed."
3592 fi
3593
3594 armasm_flags(){
3595     for flag; do
3596         case $flag in
3597             # Filter out MSVC cl.exe options from cflags that shouldn't
3598             # be passed to gas-preprocessor
3599             -M[TD]*)                                            ;;
3600             *)                  echo $flag                      ;;
3601         esac
3602    done
3603 }
3604
3605 ccc_flags(){
3606     for flag; do
3607         case $flag in
3608             -std=c99)           echo -c99                       ;;
3609             -mcpu=*)            echo -arch ${flag#*=}           ;;
3610             -mieee)             echo -ieee                      ;;
3611             -O*|-fast)          echo $flag                      ;;
3612             -fno-math-errno)    echo -assume nomath_errno       ;;
3613             -g)                 echo -g3                        ;;
3614             -Wall)              echo -msg_enable level2         ;;
3615             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3616             -Wl,*)              echo $flag                      ;;
3617             -f*|-W*)                                            ;;
3618             *)                  echo $flag                      ;;
3619         esac
3620    done
3621 }
3622
3623 cparser_flags(){
3624     for flag; do
3625         case $flag in
3626             -Wno-switch)             echo -Wno-switch-enum ;;
3627             -Wno-format-zero-length) ;;
3628             -Wdisabled-optimization) ;;
3629             -Wno-pointer-sign)       echo -Wno-other ;;
3630             *)                       echo $flag ;;
3631         esac
3632     done
3633 }
3634
3635 msvc_common_flags(){
3636     for flag; do
3637         case $flag in
3638             # In addition to specifying certain flags under the compiler
3639             # specific filters, they must be specified here as well or else the
3640             # generic catch all at the bottom will print the original flag.
3641             -Wall)                ;;
3642             -std=c99)             ;;
3643             # Common flags
3644             -fomit-frame-pointer) ;;
3645             -g)                   echo -Z7 ;;
3646             -fno-math-errno)      ;;
3647             -fno-common)          ;;
3648             -fno-signed-zeros)    ;;
3649             -fPIC)                ;;
3650             -mthumb)              ;;
3651             -march=*)             ;;
3652             -lz)                  echo zlib.lib ;;
3653             -lavifil32)           echo vfw32.lib ;;
3654             -lavicap32)           echo vfw32.lib user32.lib ;;
3655             -lx264)               echo libx264.lib ;;
3656             -l*)                  echo ${flag#-l}.lib ;;
3657             -LARGEADDRESSAWARE)   echo $flag ;;
3658             -L*)                  echo -libpath:${flag#-L} ;;
3659             *)                    echo $flag ;;
3660         esac
3661     done
3662 }
3663
3664 msvc_flags(){
3665     msvc_common_flags "$@"
3666     for flag; do
3667         case $flag in
3668             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3669                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3670                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3671                                        -wd4307 \
3672                                        -wd4273 -wd4554 -wd4701 ;;
3673         esac
3674     done
3675 }
3676
3677 icl_flags(){
3678     msvc_common_flags "$@"
3679     for flag; do
3680         case $flag in
3681             # Despite what Intel's documentation says -Wall, which is supported
3682             # on Windows, does enable remarks so disable them here.
3683             -Wall)                echo $flag -Qdiag-disable:remark ;;
3684             -std=c99)             echo -Qstd=c99 ;;
3685             -flto)                echo -ipo ;;
3686         esac
3687     done
3688 }
3689
3690 icc_flags(){
3691     for flag; do
3692         case $flag in
3693             -flto)                echo -ipo ;;
3694             *)                    echo $flag ;;
3695         esac
3696     done
3697 }
3698
3699 pgi_flags(){
3700     for flag; do
3701         case $flag in
3702             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3703             -fomit-frame-pointer) echo -Mnoframe ;;
3704             -g)                   echo -gopt ;;
3705             *)                    echo $flag ;;
3706         esac
3707     done
3708 }
3709
3710 suncc_flags(){
3711     for flag; do
3712         case $flag in
3713             -march=*|-mcpu=*)
3714                 case "${flag#*=}" in
3715                     native)                   echo -xtarget=native       ;;
3716                     v9|niagara)               echo -xarch=sparc          ;;
3717                     ultrasparc)               echo -xarch=sparcvis       ;;
3718                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3719                     i586|pentium)             echo -xchip=pentium        ;;
3720                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3721                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3722                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3723                     pentium4*)          echo -xtarget=pentium4           ;;
3724                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3725                     *-sse3)             echo -xarch=sse3                 ;;
3726                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3727                     bonnell)                   echo -xarch=ssse3         ;;
3728                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3729                     westmere)                  echo -xtarget=westmere    ;;
3730                     silvermont)                echo -xarch=sse4_2        ;;
3731                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3732                     core-avx*|ivybridge|haswell|broadwell)
3733                                                echo -xarch=avx           ;;
3734                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3735                     btver1)                    echo -xarch=amdsse4a      ;;
3736                     btver2|bdver*)             echo -xarch=avx           ;;
3737                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3738                     k8|opteron|athlon64|athlon-fx)
3739                                                echo -xarch=sse2a         ;;
3740                     athlon*)                   echo -xarch=pentium_proa  ;;
3741                 esac
3742                 ;;
3743             -std=c99)             echo -xc99              ;;
3744             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3745             -fPIC)                echo -KPIC -xcode=pic32 ;;
3746             -W*,*)                echo $flag              ;;
3747             -f*-*|-W*|-mimpure-text)                      ;;
3748             -shared)              echo -G                 ;;
3749             *)                    echo $flag              ;;
3750         esac
3751     done
3752 }
3753
3754 tms470_flags(){
3755     for flag; do
3756         case $flag in
3757             -march=*|-mcpu=*)
3758                 case "${flag#*=}" in
3759                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3760                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3761                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3762                     armv6*|arm11*)          echo -mv=6   ;;
3763                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3764                                             echo -mv=5e  ;;
3765                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3766                 esac
3767                 ;;
3768             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3769             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3770             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3771             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3772             -msoft-float)   echo --float_support=vfplib       ;;
3773             -O[0-3]|-mf=*)  echo $flag                        ;;
3774             -g)             echo -g -mn                       ;;
3775             -pds=*)         echo $flag                        ;;
3776             -D*|-I*)        echo $flag                        ;;
3777             --gcc|--abi=*)  echo $flag                        ;;
3778             -me)            echo $flag                        ;;
3779         esac
3780     done
3781 }
3782
3783 probe_cc(){
3784     pfx=$1
3785     _cc=$2
3786     first=$3
3787
3788     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3789     unset _ld_o _ldflags _ld_lib _ld_path
3790     unset _depflags _DEPCMD _DEPFLAGS
3791     _flags_filter=echo
3792
3793     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3794         true # no-op to avoid reading stdin in following checks
3795     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3796         _type=llvm_gcc
3797         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3798         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3799         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3800         _cflags_speed='-O3'
3801         _cflags_size='-Os'
3802     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3803         _type=gcc
3804         gcc_version=$($_cc --version | head -n1)
3805         gcc_basever=$($_cc -dumpversion)
3806         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3807         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3808         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3809         case $gcc_basever in
3810             2) ;;
3811             2.*) ;;
3812             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3813         esac
3814         if [ "$first" = true ]; then
3815             case $gcc_basever in
3816                 4.2*)
3817                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3818             esac
3819         fi
3820         _cflags_speed='-O3'
3821         _cflags_size='-Os'
3822     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3823         _type=icc
3824         _ident=$($_cc --version | head -n1)
3825         _depflags='-MMD'
3826         _cflags_speed='-O3'
3827         _cflags_size='-Os'
3828         _cflags_noopt='-O1'
3829         _flags_filter=icc_flags
3830     elif $_cc -v 2>&1 | grep -q xlc; then
3831         _type=xlc
3832         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3833         _cflags_speed='-O5'
3834         _cflags_size='-O5 -qcompact'
3835     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3836         _type=ccc
3837         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3838         _DEPFLAGS='-M'
3839         _cflags_speed='-fast'
3840         _cflags_size='-O1'
3841         _flags_filter=ccc_flags
3842     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3843         test -d "$sysroot" || die "No valid sysroot specified."
3844         _type=armcc
3845         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3846         armcc_conf="$PWD/armcc.conf"
3847         $_cc --arm_linux_configure                 \
3848              --arm_linux_config_file="$armcc_conf" \
3849              --configure_sysroot="$sysroot"        \
3850              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3851              die "Error creating armcc configuration file."
3852         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3853         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3854         as_default="${cross_prefix}gcc"
3855         _depflags='-MMD'
3856         _cflags_speed='-O3'
3857         _cflags_size='-Os'
3858     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3859         _type=tms470
3860         _ident=$($_cc -version | head -n1 | tr -s ' ')
3861         _flags='--gcc --abi=eabi -me'
3862         _cc_e='-ppl -fe=$@'
3863         _cc_o='-fe=$@'
3864         _depflags='-ppa -ppd=$(@:.o=.d)'
3865         _cflags_speed='-O3 -mf=5'
3866         _cflags_size='-O3 -mf=2'
3867         _flags_filter=tms470_flags
3868     elif $_cc -v 2>&1 | grep -q clang; then
3869         _type=clang
3870         _ident=$($_cc --version 2>/dev/null | head -n1)
3871         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3872         _cflags_speed='-O3'
3873         _cflags_size='-Os'
3874     elif $_cc -V 2>&1 | grep -q Sun; then
3875         _type=suncc
3876         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3877         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3878         _DEPFLAGS='-xM1 -xc99'
3879         _ldflags='-std=c99'
3880         _cflags_speed='-O5'
3881         _cflags_size='-O5 -xspace'
3882         _flags_filter=suncc_flags
3883     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3884         _type=pathscale
3885         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3886         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3887         _cflags_speed='-O2'
3888         _cflags_size='-Os'
3889         _flags_filter='filter_out -Wdisabled-optimization'
3890     elif $_cc -v 2>&1 | grep -q Open64; then
3891         _type=open64
3892         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3893         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3894         _cflags_speed='-O2'
3895         _cflags_size='-Os'
3896         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3897     elif $_cc -V 2>&1 | grep -q Portland; then
3898         _type=pgi
3899         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3900         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3901         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3902         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3903         _cflags_noopt="-O"
3904         _flags_filter=pgi_flags
3905     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3906         _type=armasm
3907         _ident=$($_cc | head -n1)
3908         # 4509: "This form of conditional instruction is deprecated"
3909         _flags="-nologo -ignore 4509"
3910         _flags_filter=armasm_flags
3911     elif $_cc 2>&1 | grep -q Intel; then
3912         _type=icl
3913         _ident=$($_cc 2>&1 | head -n1)
3914         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3915         # Not only is O3 broken on 13.x+ but it is slower on all previous
3916         # versions (tested) as well.
3917         _cflags_speed="-O2"
3918         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3919         if $_cc 2>&1 | grep -q Linker; then
3920             _ld_o='-out:$@'
3921         else
3922             _ld_o='-Fe$@'
3923         fi
3924         _cc_o='-Fo$@'
3925         _cc_e='-P'
3926         _flags_filter=icl_flags
3927         _ld_lib='lib%.a'
3928         _ld_path='-libpath:'
3929         # -Qdiag-error to make icl error when seeing certain unknown arguments
3930         _flags='-nologo -Qdiag-error:4044,10157'
3931         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3932         # with MSVC which enables it by default.
3933         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3934         disable stripping
3935     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3936         _type=msvc
3937         _ident=$($_cc 2>&1 | head -n1)
3938         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3939         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3940         _cflags_speed="-O2"
3941         _cflags_size="-O1"
3942         if $_cc -nologo- 2>&1 | grep -q Linker; then
3943             _ld_o='-out:$@'
3944         else
3945             _ld_o='-Fe$@'
3946         fi
3947         _cc_o='-Fo$@'
3948         _cc_e='-P -Fi$@'
3949         _flags_filter=msvc_flags
3950         _ld_lib='lib%.a'
3951         _ld_path='-libpath:'
3952         _flags='-nologo'
3953         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3954         disable stripping
3955     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3956         _type=cparser
3957         _ident=$($_cc --version | head -n1)
3958         _depflags='-MMD'
3959         _cflags_speed='-O4'
3960         _cflags_size='-O2'
3961         _flags_filter=cparser_flags
3962     fi
3963
3964     eval ${pfx}_type=\$_type
3965     eval ${pfx}_ident=\$_ident
3966 }
3967
3968 set_ccvars(){
3969     eval ${1}_C=\${_cc_c-\${${1}_C}}
3970     eval ${1}_E=\${_cc_e-\${${1}_E}}
3971     eval ${1}_O=\${_cc_o-\${${1}_O}}
3972
3973     if [ -n "$_depflags" ]; then
3974         eval ${1}_DEPFLAGS=\$_depflags
3975     else
3976         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3977         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3978         eval DEP${1}FLAGS=\$_flags
3979     fi
3980 }
3981
3982 probe_cc cc "$cc" "true"
3983 cflags_filter=$_flags_filter
3984 cflags_speed=$_cflags_speed
3985 cflags_size=$_cflags_size
3986 cflags_noopt=$_cflags_noopt
3987 add_cflags $_flags $_cflags
3988 cc_ldflags=$_ldflags
3989 set_ccvars CC
3990
3991 probe_cc hostcc "$host_cc"
3992 host_cflags_filter=$_flags_filter
3993 add_host_cflags  $_flags $_cflags
3994 set_ccvars HOSTCC
3995
3996 test -n "$cc_type" && enable $cc_type ||
3997     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3998
3999 : ${as_default:=$cc}
4000 : ${objcc_default:=$cc}
4001 : ${dep_cc_default:=$cc}
4002 : ${ld_default:=$cc}
4003 : ${host_ld_default:=$host_cc}
4004 set_default ar as objcc dep_cc ld host_ld windres
4005
4006 probe_cc as "$as"
4007 asflags_filter=$_flags_filter
4008 add_asflags $_flags $_cflags
4009 set_ccvars AS
4010
4011 probe_cc objcc "$objcc"
4012 objcflags_filter=$_flags_filter
4013 add_objcflags $_flags $_cflags
4014 set_ccvars OBJC
4015
4016 probe_cc ld "$ld"
4017 ldflags_filter=$_flags_filter
4018 add_ldflags $_flags $_ldflags
4019 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4020 LD_O=${_ld_o-$LD_O}
4021 LD_LIB=${_ld_lib-$LD_LIB}
4022 LD_PATH=${_ld_path-$LD_PATH}
4023
4024 probe_cc hostld "$host_ld"
4025 host_ldflags_filter=$_flags_filter
4026 add_host_ldflags $_flags $_ldflags
4027 HOSTLD_O=${_ld_o-$HOSTLD_O}
4028
4029 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4030     probe_cc depcc "$dep_cc"
4031     CCDEP=${_DEPCMD:-$DEPCMD}
4032     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4033     DEPCCFLAGS=$_flags
4034 fi
4035
4036 if $ar 2>&1 | grep -q Microsoft; then
4037     arflags="-nologo"
4038     ar_o='-out:$@'
4039 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4040     arflags="rq"
4041     ar_o='$@'
4042 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4043     arflags='-Xany -r -c'
4044     ar_o='$@'
4045 elif $ar 2>&1 | grep -q "\[D\] "; then
4046     arflags="rcD"
4047     ar_o='$@'
4048 else
4049     arflags="rc"
4050     ar_o='$@'
4051 fi
4052
4053 add_cflags $extra_cflags
4054 add_cxxflags $extra_cxxflags
4055 add_objcflags $extra_objcflags
4056 add_asflags $extra_cflags
4057
4058 if test -n "$sysroot"; then
4059     case "$cc_type" in
4060         gcc|llvm_gcc|clang)
4061             add_cppflags --sysroot="$sysroot"
4062             add_ldflags --sysroot="$sysroot"
4063 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4064             add_cppflags -isysroot "$sysroot"
4065             add_ldflags -isysroot "$sysroot"
4066         ;;
4067         tms470)
4068             add_cppflags -I"$sysinclude"
4069             add_ldflags  --sysroot="$sysroot"
4070         ;;
4071     esac
4072 fi
4073
4074 if test "$cpu" = host; then
4075     enabled cross_compile &&
4076         die "--cpu=host makes no sense when cross-compiling."
4077
4078     case "$cc_type" in
4079         gcc|llvm_gcc)
4080             check_native(){
4081                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4082                 sed -n "/cc1.*$1=/{
4083                             s/.*$1=\\([^ ]*\\).*/\\1/
4084                             p
4085                             q
4086                         }" $TMPE
4087             }
4088             cpu=$(check_native -march || check_native -mcpu)
4089         ;;
4090         clang)
4091             check_native(){
4092                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4093                 sed -n "/cc1.*-target-cpu /{
4094                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4095                             p
4096                             q
4097                         }" $TMPE
4098             }
4099             cpu=$(check_native -march)
4100         ;;
4101     esac
4102
4103     test "${cpu:-host}" = host &&
4104         die "--cpu=host not supported with compiler $cc"
4105 fi
4106
4107 # Deal with common $arch aliases
4108 case "$arch" in
4109     aarch64|arm64)
4110         arch="aarch64"
4111     ;;
4112     arm*|iPad*|iPhone*)
4113         arch="arm"
4114     ;;
4115     mips*|IP*)
4116         case "$arch" in
4117         *el)
4118             add_cppflags -EL
4119             add_ldflags -EL
4120         ;;
4121         *eb)
4122             add_cppflags -EB
4123             add_ldflags -EB
4124         ;;
4125         esac
4126         arch="mips"
4127     ;;
4128     parisc*|hppa*)
4129         arch="parisc"
4130     ;;
4131     "Power Macintosh"|ppc*|powerpc*)
4132         arch="ppc"
4133     ;;
4134     s390|s390x)
4135         arch="s390"
4136     ;;
4137     sh4|sh)
4138         arch="sh4"
4139     ;;
4140     sun4u|sparc*)
4141         arch="sparc"
4142     ;;
4143     tilegx|tile-gx)
4144         arch="tilegx"
4145     ;;
4146     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4147         arch="x86"
4148     ;;
4149 esac
4150
4151 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4152 enable $arch
4153
4154 # Add processor-specific flags
4155 if enabled aarch64; then
4156
4157     case $cpu in
4158         armv*)
4159             cpuflags="-march=$cpu"
4160         ;;
4161         *)
4162             cpuflags="-mcpu=$cpu"
4163         ;;
4164     esac
4165
4166 elif enabled alpha; then
4167
4168     cpuflags="-mcpu=$cpu"
4169
4170 elif enabled arm; then
4171
4172     check_arm_arch() {
4173         check_cpp_condition stddef.h \
4174             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4175             $cpuflags
4176     }
4177
4178     probe_arm_arch() {
4179         if   check_arm_arch 4;        then echo armv4;
4180         elif check_arm_arch 4T;       then echo armv4t;
4181         elif check_arm_arch 5;        then echo armv5;
4182         elif check_arm_arch 5E;       then echo armv5e;
4183         elif check_arm_arch 5T;       then echo armv5t;
4184         elif check_arm_arch 5TE;      then echo armv5te;
4185         elif check_arm_arch 5TEJ;     then echo armv5te;
4186         elif check_arm_arch 6;        then echo armv6;
4187         elif check_arm_arch 6J;       then echo armv6j;
4188         elif check_arm_arch 6K;       then echo armv6k;
4189         elif check_arm_arch 6Z;       then echo armv6z;
4190         elif check_arm_arch 6ZK;      then echo armv6zk;
4191         elif check_arm_arch 6T2;      then echo armv6t2;
4192         elif check_arm_arch 7;        then echo armv7;
4193         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4194         elif check_arm_arch 7S;       then echo armv7-a;
4195         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4196         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4197         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4198         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4199         fi
4200     }
4201
4202     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4203
4204     case $cpu in
4205         armv*)
4206             cpuflags="-march=$cpu"
4207             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4208         ;;
4209         *)
4210             cpuflags="-mcpu=$cpu"
4211             case $cpu in
4212                 cortex-a*)                               subarch=armv7a  ;;
4213                 cortex-r*)                               subarch=armv7r  ;;
4214                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4215                 arm11*)                                  subarch=armv6   ;;
4216                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4217                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4218                 *)                             subarch=$(probe_arm_arch) ;;
4219             esac
4220         ;;
4221     esac
4222
4223     case "$subarch" in
4224         armv5t*)    enable fast_clz                ;;
4225         armv[6-8]*)
4226             enable fast_clz
4227             disabled fast_unaligned || enable fast_unaligned
4228             ;;
4229     esac
4230
4231 elif enabled avr32; then
4232
4233     case $cpu in
4234         ap7[02]0[0-2])
4235             subarch="avr32_ap"
4236             cpuflags="-mpart=$cpu"
4237         ;;
4238         ap)
4239             subarch="avr32_ap"
4240             cpuflags="-march=$cpu"
4241         ;;
4242         uc3[ab]*)
4243             subarch="avr32_uc"
4244             cpuflags="-mcpu=$cpu"
4245         ;;
4246         uc)
4247             subarch="avr32_uc"
4248             cpuflags="-march=$cpu"
4249         ;;
4250     esac
4251
4252 elif enabled bfin; then
4253
4254     cpuflags="-mcpu=$cpu"
4255
4256 elif enabled mips; then
4257
4258     cpuflags="-march=$cpu"
4259
4260     if [ "$cpu" != "generic" ]; then
4261         disable mips32r2
4262         disable mips32r5
4263         disable mips64r2
4264         disable mips32r6
4265         disable mips64r6
4266         disable loongson2
4267         disable loongson3
4268
4269         case $cpu in
4270             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4271                 enable mips32r2
4272                 disable msa
4273             ;;
4274             p5600|i6400)
4275                 disable mipsdsp
4276                 disable mipsdspr2
4277             ;;
4278             loongson*)
4279                 enable loongson2
4280                 enable loongson3
4281                 enable local_aligned_8 local_aligned_16 local_aligned_32
4282                 enable simd_align_16
4283                 enable fast_64bit
4284                 enable fast_clz
4285                 enable fast_cmov
4286                 enable fast_unaligned
4287                 disable aligned_stack
4288                 case $cpu in
4289                     loongson3*)
4290                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4291                     ;;
4292                     loongson2e)
4293                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4294                     ;;
4295                     loongson2f)
4296                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4297                     ;;
4298                 esac
4299             ;;
4300             *)
4301                 # Unknown CPU. Disable everything.
4302                 warn "unknown CPU. Disabling all MIPS optimizations."
4303                 disable mipsfpu
4304                 disable mipsdsp
4305                 disable mipsdspr2
4306                 disable msa
4307                 disable mmi
4308             ;;
4309         esac
4310
4311         case $cpu in
4312             24kc)
4313                 disable mipsfpu
4314                 disable mipsdsp
4315                 disable mipsdspr2
4316             ;;
4317             24kf*)
4318                 disable mipsdsp
4319                 disable mipsdspr2
4320             ;;
4321             24kec|34kc|1004kc)
4322                 disable mipsfpu
4323                 disable mipsdspr2
4324             ;;
4325             24kef*|34kf*|1004kf*)
4326                 disable mipsdspr2
4327             ;;
4328             74kc)
4329                 disable mipsfpu
4330             ;;
4331             p5600)
4332                 enable mips32r5
4333                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4334             ;;
4335             i6400)
4336                 enable mips64r6
4337                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4338             ;;
4339         esac
4340     else
4341         # We do not disable anything. Is up to the user to disable the unwanted features.
4342         warn 'generic cpu selected'
4343     fi
4344
4345 elif enabled ppc; then
4346
4347     disable ldbrx
4348
4349     case $(tolower $cpu) in
4350         601|ppc601|powerpc601)
4351             cpuflags="-mcpu=601"
4352             disable altivec
4353         ;;
4354         603*|ppc603*|powerpc603*)
4355             cpuflags="-mcpu=603"
4356             disable altivec
4357         ;;
4358         604*|ppc604*|powerpc604*)
4359             cpuflags="-mcpu=604"
4360             disable altivec
4361         ;;
4362         g3|75*|ppc75*|powerpc75*)
4363             cpuflags="-mcpu=750"
4364             disable altivec
4365         ;;
4366         g4|745*|ppc745*|powerpc745*)
4367             cpuflags="-mcpu=7450"
4368             disable vsx
4369         ;;
4370         74*|ppc74*|powerpc74*)
4371             cpuflags="-mcpu=7400"
4372             disable vsx
4373         ;;
4374         g5|970|ppc970|powerpc970)
4375             cpuflags="-mcpu=970"
4376             disable vsx
4377         ;;
4378         power[3-6]*)
4379             cpuflags="-mcpu=$cpu"
4380             disable vsx
4381         ;;
4382         power[7-8]*)
4383             cpuflags="-mcpu=$cpu"
4384         ;;
4385         cell)
4386             cpuflags="-mcpu=cell"
4387             enable ldbrx
4388             disable vsx
4389         ;;
4390         e500mc)
4391             cpuflags="-mcpu=e500mc"
4392             disable altivec
4393         ;;
4394         e500v2)
4395             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4396             disable altivec
4397             disable dcbzl
4398         ;;
4399         e500)
4400             cpuflags="-mcpu=8540 -mhard-float"
4401             disable altivec
4402             disable dcbzl
4403         ;;
4404     esac
4405
4406 elif enabled sparc; then
4407
4408     case $cpu in
4409         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4410             cpuflags="-mcpu=$cpu"
4411         ;;
4412         ultrasparc*|niagara[234])
4413             cpuflags="-mcpu=$cpu"
4414         ;;
4415     esac
4416
4417 elif enabled x86; then
4418
4419     case $cpu in
4420         i[345]86|pentium)
4421             cpuflags="-march=$cpu"
4422             disable i686
4423             disable mmx
4424         ;;
4425         # targets that do NOT support nopl and conditional mov (cmov)
4426         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4427             cpuflags="-march=$cpu"
4428             disable i686
4429         ;;
4430         # targets that do support nopl and conditional mov (cmov)
4431         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4432         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4433             cpuflags="-march=$cpu"
4434             enable i686
4435             enable fast_cmov
4436         ;;
4437         # targets that do support conditional mov but on which it's slow
4438         pentium4|pentium4m|prescott|nocona)
4439             cpuflags="-march=$cpu"
4440             enable i686
4441             disable fast_cmov
4442         ;;
4443     esac
4444
4445 fi
4446
4447 if [ "$cpu" != generic ]; then
4448     add_cflags  $cpuflags
4449     add_asflags $cpuflags
4450     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4451 fi
4452
4453 # compiler sanity check
4454 check_exec <<EOF
4455 int main(void){ return 0; }
4456 EOF
4457 if test "$?" != 0; then
4458     echo "$cc is unable to create an executable file."
4459     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4460         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4461         echo "Only do this if you know what cross compiling means."
4462     fi
4463     die "C compiler test failed."
4464 fi
4465
4466 add_cppflags -D_ISOC99_SOURCE
4467 add_cxxflags -D__STDC_CONSTANT_MACROS
4468 check_cflags -std=c99
4469 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4470 #include <stdlib.h>
4471 EOF
4472 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4473 #include <stdlib.h>
4474 EOF
4475
4476 add_host_cppflags -D_ISOC99_SOURCE
4477 check_host_cflags -std=c99
4478 check_host_cflags -Wall
4479 check_host_cflags -O3
4480
4481 check_64bit(){
4482     arch32=$1
4483     arch64=$2
4484     expr=$3
4485     check_code cc "" "int test[2*($expr) - 1]" &&
4486         subarch=$arch64 || subarch=$arch32
4487 }
4488
4489 case "$arch" in
4490     aarch64|alpha|ia64)
4491         spic=$shared
4492     ;;
4493     mips)
4494         check_64bit mips mips64 '_MIPS_SIM > 1'
4495         spic=$shared
4496     ;;
4497     parisc)
4498         check_64bit parisc parisc64 'sizeof(void *) > 4'
4499         spic=$shared
4500     ;;
4501     ppc)
4502         check_64bit ppc ppc64 'sizeof(void *) > 4'
4503         spic=$shared
4504     ;;
4505     s390)
4506         check_64bit s390 s390x 'sizeof(void *) > 4'
4507         spic=$shared
4508     ;;
4509     sparc)
4510         check_64bit sparc sparc64 'sizeof(void *) > 4'
4511         spic=$shared
4512     ;;
4513     x86)
4514         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4515         # Treat x32 as x64 for now. Note it also needs spic=$shared
4516         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4517             subarch=x86_64
4518         if test "$subarch" = "x86_64"; then
4519             spic=$shared
4520         fi
4521     ;;
4522     ppc)
4523         check_cc <<EOF && subarch="ppc64"
4524         int test[(int)sizeof(char*) - 7];
4525 EOF
4526     ;;
4527 esac
4528
4529 enable $subarch
4530 enabled spic && enable_weak pic
4531
4532 # OS specific
4533 case $target_os in
4534     aix)
4535         SHFLAGS=-shared
4536         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4537         enabled shared && add_ldflags -Wl,-brtl
4538         ;;
4539     android)
4540         disable symver
4541         enable section_data_rel_ro
4542         SLIB_INSTALL_NAME='$(SLIBNAME)'
4543         SLIB_INSTALL_LINKS=
4544         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4545         ;;
4546     haiku)
4547         prefix_default="/boot/common"
4548         network_extralibs="-lnetwork"
4549         host_libs=
4550         ;;
4551     sunos)
4552         SHFLAGS='-shared -Wl,-h,$$(@F)'
4553         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4554         network_extralibs="-lsocket -lnsl"
4555         add_cppflags -D__EXTENSIONS__
4556         # When using suncc to build, the Solaris linker will mark
4557         # an executable with each instruction set encountered by
4558         # the Solaris assembler.  As our libraries contain their own
4559         # guards for processor-specific code, instead suppress
4560         # generation of the HWCAPS ELF section on Solaris x86 only.
4561         enabled_all suncc x86 &&
4562             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4563             add_ldflags -Wl,-M,mapfile
4564         nm_default='nm -P -g'
4565         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4566         ;;
4567     netbsd)
4568         disable symver
4569         oss_indev_extralibs="-lossaudio"
4570         oss_outdev_extralibs="-lossaudio"
4571         enabled gcc || check_ldflags -Wl,-zmuldefs
4572         ;;
4573     openbsd|bitrig)
4574         disable symver
4575         SHFLAGS='-shared'
4576         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4577         SLIB_INSTALL_LINKS=
4578         oss_indev_extralibs="-lossaudio"
4579         oss_outdev_extralibs="-lossaudio"
4580         ;;
4581     dragonfly)
4582         disable symver
4583         ;;
4584     freebsd)
4585         ;;
4586     bsd/os)
4587         add_extralibs -lpoll -lgnugetopt
4588         strip="strip -d"
4589         ;;
4590     darwin)
4591         enabled ppc && add_asflags -force_cpusubtype_ALL
4592         install_name_dir_default='$(SHLIBDIR)'
4593         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4594         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4595         strip="${strip} -x"
4596         add_ldflags -Wl,-dynamic,-search_paths_first
4597         SLIBSUF=".dylib"
4598         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4599         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4600         objformat="macho"
4601         enabled x86_64 && objformat="macho64"
4602         enabled_any pic shared x86_64 ||
4603             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4604         check_header dispatch/dispatch.h
4605         ;;
4606     msys*)
4607         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4608         ;;
4609     mingw32*|mingw64*)
4610         if test $target_os = "mingw32ce"; then
4611             disable network
4612         else
4613             target_os=mingw32
4614         fi
4615         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4616         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4617         LIBTARGET=i386
4618         if enabled x86_64; then
4619             LIBTARGET="i386:x86-64"
4620         elif enabled arm; then
4621             LIBTARGET=arm-wince
4622         fi
4623         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4624         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4625         shlibdir_default="$bindir_default"
4626         SLIBPREF=""
4627         SLIBSUF=".dll"
4628         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4629         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4630         dlltool="${cross_prefix}dlltool"
4631         if check_cmd lib.exe -list; then
4632             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4633             if enabled x86_64; then
4634                 LIBTARGET=x64
4635             fi
4636         elif check_cmd $dlltool --version; then
4637             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4638         fi
4639         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4640         SLIB_INSTALL_LINKS=
4641         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4642         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4643         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4644         objformat="win32"
4645         ranlib=:
4646         enable dos_paths
4647         check_ldflags -Wl,--nxcompat,--dynamicbase
4648         # Lets work around some stupidity in binutils.
4649         # ld will strip relocations from executables even though we need them
4650         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4651         # however ld then forgets what the entry point should be (oops) so we
4652         # have to manually (re)set it.
4653         if enabled x86_32; then
4654             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4655         elif enabled x86_64; then
4656             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4657             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4658             # Set image base >4GB for extra entropy with HEASLR
4659             add_ldexeflags -Wl,--image-base,0x140000000
4660             append SHFLAGS -Wl,--image-base,0x180000000
4661         fi
4662         ;;
4663     win32|win64)
4664         disable symver
4665         if enabled shared; then
4666             # Link to the import library instead of the normal static library
4667             # for shared libs.
4668             LD_LIB='%.lib'
4669             # Cannot build both shared and static libs with MSVC or icl.
4670             disable static
4671         fi
4672         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4673         shlibdir_default="$bindir_default"
4674         SLIBPREF=""
4675         SLIBSUF=".dll"
4676         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4677         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4678         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4679         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4680         SLIB_INSTALL_LINKS=
4681         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4682         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4683         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4684         objformat="win32"
4685         ranlib=:
4686         enable dos_paths
4687         ;;
4688     cygwin*)
4689         target_os=cygwin
4690         shlibdir_default="$bindir_default"
4691         SLIBPREF="cyg"
4692         SLIBSUF=".dll"
4693         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4694         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4695         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4696         SLIB_INSTALL_LINKS=
4697         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4698         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4699         objformat="win32"
4700         enable dos_paths
4701         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4702         ;;
4703     *-dos|freedos|opendos)
4704         network_extralibs="-lsocket"
4705         objformat="coff"
4706         enable dos_paths
4707         add_cppflags -U__STRICT_ANSI__
4708         ;;
4709     linux)
4710         enable dv1394
4711         enable section_data_rel_ro
4712         ;;
4713     irix*)
4714         target_os=irix
4715         ranlib="echo ignoring ranlib"
4716         ;;
4717     os/2*)
4718         strip="lxlite -CS"
4719         ln_s="cp -f"
4720         objformat="aout"
4721         add_cppflags -D_GNU_SOURCE
4722         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4723         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4724         LIBSUF="_s.a"
4725         SLIBPREF=""
4726         SLIBSUF=".dll"
4727         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4728         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4729         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4730             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4731             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4732             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4733             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4734         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4735             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4736         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4737         enable dos_paths
4738         enable_weak os2threads
4739         ;;
4740     gnu/kfreebsd)
4741         add_cppflags -D_BSD_SOURCE
4742         ;;
4743     gnu)
4744         ;;
4745     qnx)
4746         add_cppflags -D_QNX_SOURCE
4747         network_extralibs="-lsocket"
4748         ;;
4749     symbian)
4750         SLIBSUF=".dll"
4751         enable dos_paths
4752         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4753         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4754         add_ldflags -Wl,--target1-abs,--no-undefined \
4755                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4756                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4757         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4758                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4759                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4760         ;;
4761     osf1)
4762         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4763         ;;
4764     minix)
4765         ;;
4766     plan9)
4767         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4768                      -D_REENTRANT_SOURCE        \
4769                      -D_RESEARCH_SOURCE         \
4770                      -DFD_SETSIZE=96            \
4771                      -DHAVE_SOCK_OPTS
4772         add_compat strtod.o strtod=avpriv_strtod
4773         network_extralibs='-lbsd'
4774         exeobjs=compat/plan9/main.o
4775         disable ffserver
4776         cp_f='cp'
4777         ;;
4778     none)
4779         ;;
4780     *)
4781         die "Unknown OS '$target_os'."
4782         ;;
4783 esac
4784
4785 # test if creating links works
4786 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4787 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4788 mkdir "$link_dest"
4789 $ln_s "$link_dest" "$link_name"
4790 touch "$link_dest/test_file"
4791 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4792     # create link to source path
4793     [ -e src ] && rm src
4794     $ln_s "$source_path" src
4795     source_link=src
4796 else
4797     # creating directory links doesn't work
4798     # fall back to using the full source path
4799     source_link="$source_path"
4800 fi
4801 # cleanup
4802 rm -r "$link_dest"
4803 rm -r "$link_name"
4804
4805 # determine libc flavour
4806
4807 probe_libc(){
4808     pfx=$1
4809     pfx_no_=${pfx%_}
4810     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4811     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4812         eval ${pfx}libc_type=uclibc
4813         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4814     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4815         eval ${pfx}libc_type=glibc
4816         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4817     # MinGW headers can be installed on Cygwin, so check for newlib first.
4818     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4819         eval ${pfx}libc_type=newlib
4820         add_${pfx}cppflags -U__STRICT_ANSI__
4821     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4822     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4823         eval ${pfx}libc_type=mingw64
4824         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4825             add_compat msvcrt/snprintf.o
4826             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4827         fi
4828         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4829         eval test \$${pfx_no_}cc_type = "gcc" &&
4830             add_${pfx}cppflags -D__printf__=__gnu_printf__
4831     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4832          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4833         eval ${pfx}libc_type=mingw32
4834         check_${pfx}cpp_condition _