configure: fix valgrind-memcheck arguments
[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   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-error-resilience disable error resilience code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --enable-dxva2           enable DXVA2 code
145   --enable-vaapi           enable VAAPI code
146   --enable-vda             enable VDA code
147   --enable-vdpau           enable VDPAU code
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --enable-bzlib           enable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --enable-iconv           enable iconv [autodetect]
193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
194   --enable-libass          enable libass subtitles rendering [no]
195   --enable-libbluray       enable BluRay reading using libbluray [no]
196   --enable-libcaca         enable textual display using libcaca
197   --enable-libcelt         enable CELT decoding via libcelt [no]
198   --enable-libcdio         enable audio CD grabbing with libcdio
199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
200                            and libraw1394 [no]
201   --enable-libfaac         enable AAC encoding via libfaac [no]
202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
204   --enable-libfreetype     enable libfreetype [no]
205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
208   --enable-libmodplug      enable ModPlug via libmodplug [no]
209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
210   --enable-libnut          enable NUT (de)muxing via libnut,
211                            native (de)muxer exists [no]
212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
214   --enable-libopencv       enable video filtering via libopencv [no]
215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
216   --enable-libopus         enable Opus decoding via libopus [no]
217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
218   --enable-libquvi         enable quvi input via libquvi [no]
219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
222   --enable-libsoxr         enable Include libsoxr resampling [no]
223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
225   --enable-libtheora       enable Theora encoding via libtheora [no]
226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
229   --enable-libvidstab      enable video stabilization using vid.stab [no]
230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
233                            native implementation exists [no]
234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
235   --enable-libx264         enable H.264 encoding via x264 [no]
236   --enable-libxavs         enable AVS encoding via xavs [no]
237   --enable-libxvid         enable Xvid encoding via xvidcore,
238                            native MPEG-4/Xvid encoder exists [no]
239   --enable-openal          enable OpenAL 1.1 capture support [no]
240   --enable-opencl          enable OpenCL code
241   --enable-openssl         enable openssl [no]
242   --enable-x11grab         enable X11 grabbing [no]
243   --enable-zlib            enable zlib [autodetect]
244
245 Advanced options (experts only):
246   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
247   --enable-cross-compile   assume a cross-compiler is used
248   --sysroot=PATH           root of cross-build tree
249   --sysinclude=PATH        location of cross-build system headers
250   --target-os=OS           compiler targets OS [$target_os]
251   --target-exec=CMD        command to run executables on target
252   --target-path=DIR        path to view of build directory on target
253   --toolchain=NAME         set tool defaults according to NAME
254   --nm=NM                  use nm tool NM [$nm_default]
255   --ar=AR                  use archive tool AR [$ar_default]
256   --as=AS                  use assembler AS [$as_default]
257   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
258   --cc=CC                  use C compiler CC [$cc_default]
259   --cxx=CXX                use C compiler CXX [$cxx_default]
260   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
261   --ld=LD                  use linker LD [$ld_default]
262   --host-cc=HOSTCC         use host C compiler HOSTCC
263   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
264   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
265   --host-ld=HOSTLD         use host linker HOSTLD
266   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
267   --host-libs=HLIBS        use libs HLIBS when linking for host
268   --host-os=OS             compiler host OS [$target_os]
269   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
270   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
271   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
272   --extra-libs=ELIBS       add ELIBS [$ELIBS]
273   --extra-version=STRING   version string suffix []
274   --optflags=OPTFLAGS      override optimization-related compiler flags
275   --build-suffix=SUFFIX    library name suffix []
276   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
277   --progs-suffix=SUFFIX    program name suffix []
278   --arch=ARCH              select architecture [$arch]
279   --cpu=CPU                select the minimum required CPU (affects
280                            instruction selection, may crash on older CPUs)
281   --enable-pic             build position-independent code
282   --enable-sram            allow use of on-chip SRAM
283   --enable-thumb           compile for Thumb instruction set
284   --disable-symver         disable symbol versioning
285   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
286   --disable-safe-bitstream-reader
287                            disable buffer boundary checking in bitreaders
288                            (faster, but may crash)
289   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
290   --enable-lto             use link-time optimization
291
292 Optimization options (experts only):
293   --disable-asm            disable all assembler optimizations
294   --disable-altivec        disable AltiVec optimizations
295   --disable-amd3dnow       disable 3DNow! optimizations
296   --disable-amd3dnowext    disable 3DNow! extended optimizations
297   --disable-mmx            disable MMX optimizations
298   --disable-mmxext         disable MMXEXT optimizations
299   --disable-sse            disable SSE optimizations
300   --disable-sse2           disable SSE2 optimizations
301   --disable-sse3           disable SSE3 optimizations
302   --disable-ssse3          disable SSSE3 optimizations
303   --disable-sse4           disable SSE4 optimizations
304   --disable-sse42          disable SSE4.2 optimizations
305   --disable-avx            disable AVX optimizations
306   --disable-fma4           disable FMA4 optimizations
307   --disable-armv5te        disable armv5te optimizations
308   --disable-armv6          disable armv6 optimizations
309   --disable-armv6t2        disable armv6t2 optimizations
310   --disable-vfp            disable VFP optimizations
311   --disable-neon           disable NEON optimizations
312   --disable-vis            disable VIS optimizations
313   --disable-inline-asm     disable use of inline assembler
314   --disable-yasm           disable use of yasm assembler
315   --disable-mips32r2       disable MIPS32R2 optimizations
316   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
317   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
318   --disable-mipsfpu        disable floating point MIPS optimizations
319   --disable-fast-unaligned consider unaligned accesses slow
320
321 Developer options (useful when working on FFmpeg itself):
322   --disable-debug          disable debugging symbols
323   --enable-debug=LEVEL     set the debug level [$debuglevel]
324   --disable-optimizations  disable compiler optimizations
325   --enable-extra-warnings  enable more compiler warnings
326   --disable-stripping      disable stripping of executables and shared libraries
327   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
328                            2 causes a slowdown at runtime.
329   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
330   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
331                            leaks and errors, using the specified valgrind binary.
332                            Cannot be combined with --target-exec
333   --enable-ftrapv          Trap arithmetic overflows
334   --samples=PATH           location of test samples for FATE, if not set use
335                            \$FATE_SAMPLES at make invocation time.
336   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337                            should be used only for debugging purposes)
338   --enable-random          randomly enable/disable components
339   --disable-random
340   --enable-random=LIST     randomly enable/disable specific components or
341   --disable-random=LIST    component groups. LIST is a comma-separated list
342                            of NAME[:PROB] entries where NAME is a component
343                            (group) and PROB the probability associated with
344                            NAME (default 0.5).
345   --random-seed=VALUE      seed value for --enable/disable-random
346
347 NOTE: Object files are built at the place where configure is launched.
348 EOF
349   exit 0
350 }
351
352 quotes='""'
353
354 log(){
355     echo "$@" >> $logfile
356 }
357
358 log_file(){
359     log BEGIN $1
360     pr -n -t $1 >> $logfile
361     log END $1
362 }
363
364 echolog(){
365     log "$@"
366     echo "$@"
367 }
368
369 warn(){
370     log "WARNING: $*"
371     WARNINGS="${WARNINGS}WARNING: $*\n"
372 }
373
374 die(){
375     echolog "$@"
376     cat <<EOF
377
378 If you think configure made a mistake, make sure you are using the latest
379 version from Git.  If the latest version fails, report the problem to the
380 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
381 EOF
382     if disabled logging; then
383         cat <<EOF
384 Rerun configure with logging enabled (do not use --disable-logging), and
385 include the log this produces with your report.
386 EOF
387     else
388         cat <<EOF
389 Include the log file "$logfile" produced by configure as this will help
390 solving the problem.
391 EOF
392     fi
393     exit 1
394 }
395
396 # Avoid locale weirdness, besides we really just want to translate ASCII.
397 toupper(){
398     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
399 }
400
401 tolower(){
402     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
403 }
404
405 c_escape(){
406     echo "$*" | sed 's/["\\]/\\\0/g'
407 }
408
409 sh_quote(){
410     v=$(echo "$1" | sed "s/'/'\\\\''/g")
411     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
412     echo "$v"
413 }
414
415 cleanws(){
416     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
417 }
418
419 filter(){
420     pat=$1
421     shift
422     for v; do
423         eval "case $v in $pat) echo $v ;; esac"
424     done
425 }
426
427 filter_out(){
428     pat=$1
429     shift
430     for v; do
431         eval "case $v in $pat) ;; *) echo $v ;; esac"
432     done
433 }
434
435 map(){
436     m=$1
437     shift
438     for v; do eval $m; done
439 }
440
441 add_suffix(){
442     suffix=$1
443     shift
444     for v; do echo ${v}${suffix}; done
445 }
446
447 set_all(){
448     value=$1
449     shift
450     for var in $*; do
451         eval $var=$value
452     done
453 }
454
455 set_weak(){
456     value=$1
457     shift
458     for var; do
459         eval : \${$var:=$value}
460     done
461 }
462
463 sanitize_var_name(){
464     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
465 }
466
467 set_safe(){
468     var=$1
469     shift
470     eval $(sanitize_var_name "$var")='$*'
471 }
472
473 get_safe(){
474     eval echo \$$(sanitize_var_name "$1")
475 }
476
477 pushvar(){
478     for pvar in $*; do
479         eval level=\${${pvar}_level:=0}
480         eval ${pvar}_${level}="\$$pvar"
481         eval ${pvar}_level=$(($level+1))
482     done
483 }
484
485 popvar(){
486     for pvar in $*; do
487         eval level=\${${pvar}_level:-0}
488         test $level = 0 && continue
489         eval level=$(($level-1))
490         eval $pvar="\${${pvar}_${level}}"
491         eval ${pvar}_level=$level
492         eval unset ${pvar}_${level}
493     done
494 }
495
496 enable(){
497     set_all yes $*
498 }
499
500 disable(){
501     set_all no $*
502 }
503
504 enable_weak(){
505     set_weak yes $*
506 }
507
508 disable_weak(){
509     set_weak no $*
510 }
511
512 enable_safe(){
513     for var; do
514         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
515     done
516 }
517
518 disable_safe(){
519     for var; do
520         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521     done
522 }
523
524 do_enable_deep(){
525     for var; do
526         enabled $var && continue
527         eval sel="\$${var}_select"
528         eval sgs="\$${var}_suggest"
529         pushvar var sgs
530         enable_deep $sel
531         popvar sgs
532         enable_deep_weak $sgs
533         popvar var
534     done
535 }
536
537 enable_deep(){
538     do_enable_deep $*
539     enable $*
540 }
541
542 enable_deep_weak(){
543     for var; do
544         disabled $var && continue
545         pushvar var
546         do_enable_deep $var
547         popvar var
548         enable_weak $var
549     done
550 }
551
552 enabled(){
553     test "${1#!}" = "$1" && op== || op=!=
554     eval test "x\$${1#!}" $op "xyes"
555 }
556
557 disabled(){
558     test "${1#!}" = "$1" && op== || op=!=
559     eval test "x\$${1#!}" $op "xno"
560 }
561
562 enabled_all(){
563     for opt; do
564         enabled $opt || return 1
565     done
566 }
567
568 disabled_all(){
569     for opt; do
570         disabled $opt || return 1
571     done
572 }
573
574 enabled_any(){
575     for opt; do
576         enabled $opt && return 0
577     done
578 }
579
580 disabled_any(){
581     for opt; do
582         disabled $opt && return 0
583     done
584     return 1
585 }
586
587 set_default(){
588     for opt; do
589         eval : \${$opt:=\$${opt}_default}
590     done
591 }
592
593 is_in(){
594     value=$1
595     shift
596     for var in $*; do
597         [ $var = $value ] && return 0
598     done
599     return 1
600 }
601
602 do_check_deps(){
603     for cfg; do
604         cfg="${cfg#!}"
605         enabled ${cfg}_checking && die "Circular dependency for $cfg."
606         disabled ${cfg}_checking && continue
607         enable ${cfg}_checking
608         append allopts $cfg
609
610         eval dep_all="\$${cfg}_deps"
611         eval dep_any="\$${cfg}_deps_any"
612         eval dep_sel="\$${cfg}_select"
613         eval dep_sgs="\$${cfg}_suggest"
614         eval dep_ifa="\$${cfg}_if"
615         eval dep_ifn="\$${cfg}_if_any"
616
617         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
618         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
619         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
620
621         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
622         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
623         enabled_all  $dep_all || disable $cfg
624         enabled_any  $dep_any || disable $cfg
625         disabled_any $dep_sel && disable $cfg
626
627         if enabled $cfg; then
628             enable_deep $dep_sel
629             enable_deep_weak $dep_sgs
630         fi
631
632         disable ${cfg}_checking
633     done
634 }
635
636 check_deps(){
637     unset allopts
638
639     do_check_deps "$@"
640
641     for cfg in $allopts; do
642         enabled $cfg || continue
643         eval dep_extralibs="\$${cfg}_extralibs"
644         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
645     done
646 }
647
648 print_config(){
649     pfx=$1
650     files=$2
651     shift 2
652     map 'eval echo "$v \${$v:-no}"' "$@" |
653     awk "BEGIN { split(\"$files\", files) }
654         {
655             c = \"$pfx\" toupper(\$1);
656             v = \$2;
657             sub(/yes/, 1, v);
658             sub(/no/,  0, v);
659             for (f in files) {
660                 file = files[f];
661                 if (file ~ /\\.h\$/) {
662                     printf(\"#define %s %d\\n\", c, v) >>file;
663                 } else if (file ~ /\\.asm\$/) {
664                     printf(\"%%define %s %d\\n\", c, v) >>file;
665                 } else if (file ~ /\\.mak\$/) {
666                     n = -v ? \"\" : \"!\";
667                     printf(\"%s%s=yes\\n\", n, c) >>file;
668                 } else if (file ~ /\\.texi\$/) {
669                     pre = -v ? \"\" : \"@c \";
670                     yesno = \$2;
671                     c2 = tolower(c);
672                     gsub(/_/, \"-\", c2);
673                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf};
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 add_cppflags(){
700     append CPPFLAGS "$@"
701 }
702
703 add_cflags(){
704     append CFLAGS $($cflags_filter "$@")
705 }
706
707 add_cxxflags(){
708     append CXXFLAGS $($cflags_filter "$@")
709 }
710
711 add_asflags(){
712     append ASFLAGS $($asflags_filter "$@")
713 }
714
715 add_ldflags(){
716     append LDFLAGS $($ldflags_filter "$@")
717 }
718
719 add_extralibs(){
720     prepend extralibs $($ldflags_filter "$@")
721 }
722
723 add_host_cppflags(){
724     append host_cppflags "$@"
725 }
726
727 add_host_cflags(){
728     append host_cflags $($host_cflags_filter "$@")
729 }
730
731 add_host_ldflags(){
732     append host_ldflags $($host_ldflags_filter "$@")
733 }
734
735 add_compat(){
736     append compat_objs $1
737     shift
738     map 'add_cppflags -D$v' "$@"
739 }
740
741 check_cmd(){
742     log "$@"
743     "$@" >> $logfile 2>&1
744 }
745
746 cc_o(){
747     eval printf '%s\\n' $CC_O
748 }
749
750 cc_e(){
751     eval printf '%s\\n' $CC_E
752 }
753
754 check_cc(){
755     log check_cc "$@"
756     cat > $TMPC
757     log_file $TMPC
758     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
759 }
760
761 check_cxx(){
762     log check_cxx "$@"
763     cat > $TMPCPP
764     log_file $TMPCPP
765     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
766 }
767
768 check_cpp(){
769     log check_cpp "$@"
770     cat > $TMPC
771     log_file $TMPC
772     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
773 }
774
775 as_o(){
776     eval printf '%s\\n' $AS_O
777 }
778
779 check_as(){
780     log check_as "$@"
781     cat > $TMPS
782     log_file $TMPS
783     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
784 }
785
786 check_inline_asm(){
787     log check_inline_asm "$@"
788     name="$1"
789     code="$2"
790     shift 2
791     disable $name
792     check_cc "$@" <<EOF && enable $name
793 void foo(void){ __asm__ volatile($code); }
794 EOF
795 }
796
797 check_insn(){
798     log check_insn "$@"
799     check_inline_asm ${1}_inline "\"$2\""
800     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
801 }
802
803 check_yasm(){
804     log check_yasm "$@"
805     echo "$1" > $TMPS
806     log_file $TMPS
807     shift 1
808     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
809 }
810
811 ld_o(){
812     eval printf '%s\\n' $LD_O
813 }
814
815 check_ld(){
816     log check_ld "$@"
817     type=$1
818     shift 1
819     flags=$(filter_out '-l*|*.so' $@)
820     libs=$(filter '-l*|*.so' $@)
821     check_$type $($cflags_filter $flags) || return
822     flags=$($ldflags_filter $flags)
823     libs=$($ldflags_filter $libs)
824     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
825 }
826
827 check_code(){
828     log check_code "$@"
829     check=$1
830     headers=$2
831     code=$3
832     shift 3
833     {
834         for hdr in $headers; do
835             echo "#include <$hdr>"
836         done
837         echo "int main(void) { $code; return 0; }"
838     } | check_$check "$@"
839 }
840
841 check_cppflags(){
842     log check_cppflags "$@"
843     check_cc "$@" <<EOF && append CPPFLAGS "$@"
844 int x;
845 EOF
846 }
847
848 check_cflags(){
849     log check_cflags "$@"
850     set -- $($cflags_filter "$@")
851     check_cc "$@" <<EOF && append CFLAGS "$@"
852 int x;
853 EOF
854 }
855
856 check_cxxflags(){
857     log check_cxxflags "$@"
858     set -- $($cflags_filter "$@")
859     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
860 int x;
861 EOF
862 }
863
864 test_ldflags(){
865     log test_ldflags "$@"
866     check_ld "cc" "$@" <<EOF
867 int main(void){ return 0; }
868 EOF
869 }
870
871 check_ldflags(){
872     log check_ldflags "$@"
873     test_ldflags "$@" && add_ldflags "$@"
874 }
875
876 check_header(){
877     log check_header "$@"
878     header=$1
879     shift
880     disable_safe $header
881     check_cpp "$@" <<EOF && enable_safe $header
882 #include <$header>
883 int x;
884 EOF
885 }
886
887 check_func(){
888     log check_func "$@"
889     func=$1
890     shift
891     disable $func
892     check_ld "cc" "$@" <<EOF && enable $func
893 extern int $func();
894 int main(void){ $func(); }
895 EOF
896 }
897
898 check_mathfunc(){
899     log check_mathfunc "$@"
900     func=$1
901     narg=$2
902     shift 2
903     test $narg = 2 && args="f, g" || args="f"
904     disable $func
905     check_ld "cc" "$@" <<EOF && enable $func
906 #include <math.h>
907 float foo(float f, float g) { return $func($args); }
908 int main(void){ return (int) foo; }
909 EOF
910 }
911
912 check_func_headers(){
913     log check_func_headers "$@"
914     headers=$1
915     funcs=$2
916     shift 2
917     {
918         for hdr in $headers; do
919             echo "#include <$hdr>"
920         done
921         for func in $funcs; do
922             echo "long check_$func(void) { return (long) $func; }"
923         done
924         echo "int main(void) { return 0; }"
925     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
926 }
927
928 check_class_headers_cpp(){
929     log check_class_headers_cpp "$@"
930     headers=$1
931     classes=$2
932     shift 2
933     {
934         for hdr in $headers; do
935             echo "#include <$hdr>"
936         done
937         echo "int main(void) { "
938         i=1
939         for class in $classes; do
940             echo "$class obj$i;"
941             i=$(expr $i + 1)
942         done
943         echo "return 0; }"
944     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
945 }
946
947 check_cpp_condition(){
948     log check_cpp_condition "$@"
949     header=$1
950     condition=$2
951     shift 2
952     check_cpp "$@" <<EOF
953 #include <$header>
954 #if !($condition)
955 #error "unsatisfied condition: $condition"
956 #endif
957 EOF
958 }
959
960 check_lib(){
961     log check_lib "$@"
962     header="$1"
963     func="$2"
964     shift 2
965     check_header $header && check_func $func "$@" && add_extralibs "$@"
966 }
967
968 check_lib2(){
969     log check_lib2 "$@"
970     headers="$1"
971     funcs="$2"
972     shift 2
973     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
974 }
975
976 check_lib_cpp(){
977     log check_lib_cpp "$@"
978     headers="$1"
979     classes="$2"
980     shift 2
981     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
982 }
983
984 check_pkg_config(){
985     log check_pkg_config "$@"
986     pkg="$1"
987     headers="$2"
988     funcs="$3"
989     shift 3
990     $pkg_config --exists $pkg 2>/dev/null || return
991     pkg_cflags=$($pkg_config --cflags $pkg)
992     pkg_libs=$($pkg_config --libs $pkg)
993     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
994         set_safe ${pkg}_cflags $pkg_cflags   &&
995         set_safe ${pkg}_libs   $pkg_libs
996 }
997
998 check_exec(){
999     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1000 }
1001
1002 check_exec_crash(){
1003     code=$(cat)
1004
1005     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1006     # are safe but may not be available everywhere.  Thus we use
1007     # raise(SIGTERM) instead.  The check is run in a subshell so we
1008     # can redirect the "Terminated" message from the shell.  SIGBUS
1009     # is not defined by standard C so it is used conditionally.
1010
1011     (check_exec "$@") >> $logfile 2>&1 <<EOF
1012 #include <signal.h>
1013 static void sighandler(int sig){
1014     raise(SIGTERM);
1015 }
1016 int func(void){
1017     $code
1018 }
1019 int (*func_ptr)(void) = func;
1020 int main(void){
1021     signal(SIGILL, sighandler);
1022     signal(SIGFPE, sighandler);
1023     signal(SIGSEGV, sighandler);
1024 #ifdef SIGBUS
1025     signal(SIGBUS, sighandler);
1026 #endif
1027     return func_ptr();
1028 }
1029 EOF
1030 }
1031
1032 check_type(){
1033     log check_type "$@"
1034     headers=$1
1035     type=$2
1036     shift 2
1037     disable_safe "$type"
1038     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1039 }
1040
1041 check_struct(){
1042     log check_struct "$@"
1043     headers=$1
1044     struct=$2
1045     member=$3
1046     shift 3
1047     disable_safe "${struct}_${member}"
1048     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1049         enable_safe "${struct}_${member}"
1050 }
1051
1052 check_builtin(){
1053     log check_builtin "$@"
1054     name=$1
1055     headers=$2
1056     builtin=$3
1057     shift 3
1058     disable "$name"
1059     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1060 }
1061
1062 require(){
1063     name="$1"
1064     header="$2"
1065     func="$3"
1066     shift 3
1067     check_lib $header $func "$@" || die "ERROR: $name not found"
1068 }
1069
1070 require2(){
1071     name="$1"
1072     headers="$2"
1073     func="$3"
1074     shift 3
1075     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1076 }
1077
1078 require_cpp(){
1079     name="$1"
1080     headers="$2"
1081     classes="$3"
1082     shift 3
1083     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1084 }
1085
1086 require_pkg_config(){
1087     pkg="$1"
1088     check_pkg_config "$@" || die "ERROR: $pkg not found"
1089     add_cflags    $(get_safe ${pkg}_cflags)
1090     add_extralibs $(get_safe ${pkg}_libs)
1091 }
1092
1093 hostcc_o(){
1094     eval printf '%s\\n' $HOSTCC_O
1095 }
1096
1097 check_host_cc(){
1098     log check_host_cc "$@"
1099     cat > $TMPC
1100     log_file $TMPC
1101     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1102 }
1103
1104 check_host_cppflags(){
1105     log check_host_cppflags "$@"
1106     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1107 int x;
1108 EOF
1109 }
1110
1111 check_host_cflags(){
1112     log check_host_cflags "$@"
1113     set -- $($host_cflags_filter "$@")
1114     check_host_cc "$@" <<EOF && append host_cflags "$@"
1115 int x;
1116 EOF
1117 }
1118
1119 apply(){
1120     file=$1
1121     shift
1122     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1123 }
1124
1125 cp_if_changed(){
1126     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1127     mkdir -p "$(dirname $2)"
1128     $cp_f "$1" "$2"
1129 }
1130
1131 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1132 # system-dependent things.
1133
1134 COMPONENT_LIST="
1135     bsfs
1136     decoders
1137     demuxers
1138     encoders
1139     filters
1140     hwaccels
1141     indevs
1142     muxers
1143     outdevs
1144     parsers
1145     protocols
1146 "
1147
1148 EXTERNAL_LIBRARY_LIST="
1149     avisynth
1150     bzlib
1151     crystalhd
1152     fontconfig
1153     frei0r
1154     gnutls
1155     iconv
1156     libaacplus
1157     libass
1158     libbluray
1159     libcaca
1160     libcdio
1161     libcelt
1162     libdc1394
1163     libfaac
1164     libfdk_aac
1165     libflite
1166     libfreetype
1167     libgsm
1168     libiec61883
1169     libilbc
1170     libmodplug
1171     libmp3lame
1172     libnut
1173     libopencore_amrnb
1174     libopencore_amrwb
1175     libopencv
1176     libopenjpeg
1177     libopus
1178     libpulse
1179     libquvi
1180     librtmp
1181     libschroedinger
1182     libshine
1183     libsoxr
1184     libspeex
1185     libstagefright_h264
1186     libtheora
1187     libtwolame
1188     libutvideo
1189     libv4l2
1190     libvidstab
1191     libvo_aacenc
1192     libvo_amrwbenc
1193     libvorbis
1194     libvpx
1195     libx264
1196     libxavs
1197     libxvid
1198     openal
1199     opencl
1200     openssl
1201     x11grab
1202     zlib
1203 "
1204
1205 DOCUMENT_LIST="
1206     doc
1207     htmlpages
1208     manpages
1209     podpages
1210     txtpages
1211 "
1212
1213 HWACCEL_LIST="
1214     dxva2
1215     vaapi
1216     vda
1217     vdpau
1218 "
1219
1220 LIBRARY_LIST="
1221     avcodec
1222     avdevice
1223     avfilter
1224     avformat
1225     avresample
1226     avutil
1227     postproc
1228     swresample
1229     swscale
1230 "
1231
1232 PROGRAM_LIST="
1233     ffplay
1234     ffprobe
1235     ffserver
1236     ffmpeg
1237 "
1238
1239 CONFIG_LIST="
1240     $COMPONENT_LIST
1241     $DOCUMENT_LIST
1242     $EXTERNAL_LIBRARY_LIST
1243     $HWACCEL_LIST
1244     $LIBRARY_LIST
1245     $PROGRAM_LIST
1246     dct
1247     dwt
1248     error_resilience
1249     fast_unaligned
1250     fft
1251     ftrapv
1252     gpl
1253     gray
1254     hardcoded_tables
1255     incompatible_fork_abi
1256     lsp
1257     lzo
1258     mdct
1259     memalign_hack
1260     memory_poisoning
1261     network
1262     nonfree
1263     pic
1264     rdft
1265     runtime_cpudetect
1266     safe_bitstream_reader
1267     shared
1268     small
1269     sram
1270     static
1271     swscale_alpha
1272     thumb
1273     version3
1274     xmm_clobber_test
1275 "
1276
1277 THREADS_LIST='
1278     pthreads
1279     w32threads
1280     os2threads
1281 '
1282
1283 ATOMICS_LIST='
1284     atomics_gcc
1285     atomics_suncc
1286     atomics_win32
1287 '
1288
1289 ARCH_LIST='
1290     aarch64
1291     alpha
1292     arm
1293     avr32
1294     avr32_ap
1295     avr32_uc
1296     bfin
1297     ia64
1298     m68k
1299     mips
1300     mips64
1301     parisc
1302     ppc
1303     ppc64
1304     s390
1305     sh4
1306     sparc
1307     sparc64
1308     tilegx
1309     tilepro
1310     tomi
1311     x86
1312     x86_32
1313     x86_64
1314 '
1315
1316 ARCH_EXT_LIST_ARM='
1317     armv5te
1318     armv6
1319     armv6t2
1320     neon
1321     vfp
1322     vfpv3
1323 '
1324
1325 ARCH_EXT_LIST_X86='
1326     amd3dnow
1327     amd3dnowext
1328     avx
1329     fma4
1330     mmx
1331     mmxext
1332     sse
1333     sse2
1334     sse3
1335     sse4
1336     sse42
1337     ssse3
1338 '
1339
1340 ARCH_EXT_LIST="
1341     $ARCH_EXT_LIST_ARM
1342     $ARCH_EXT_LIST_X86
1343     altivec
1344     ppc4xx
1345     vis
1346     mipsfpu
1347     mips32r2
1348     mipsdspr1
1349     mipsdspr2
1350 "
1351
1352 HAVE_LIST_CMDLINE='
1353     inline_asm
1354     symver
1355     yasm
1356 '
1357
1358 HAVE_LIST_PUB='
1359     bigendian
1360     fast_unaligned
1361     incompatible_fork_abi
1362 '
1363
1364 MATH_FUNCS="
1365     atanf
1366     atan2f
1367     cbrt
1368     cbrtf
1369     cosf
1370     exp2
1371     exp2f
1372     expf
1373     isinf
1374     isnan
1375     ldexpf
1376     llrint
1377     llrintf
1378     log2
1379     log2f
1380     log10f
1381     lrint
1382     lrintf
1383     powf
1384     rint
1385     round
1386     roundf
1387     sinf
1388     trunc
1389     truncf
1390 "
1391
1392 HAVE_LIST="
1393     $ARCH_EXT_LIST
1394     $(add_suffix _external $ARCH_EXT_LIST)
1395     $(add_suffix _inline   $ARCH_EXT_LIST)
1396     $HAVE_LIST_CMDLINE
1397     $HAVE_LIST_PUB
1398     $THREADS_LIST
1399     $ATOMICS_LIST
1400     $MATH_FUNCS
1401     access
1402     aligned_malloc
1403     aligned_stack
1404     alsa_asoundlib_h
1405     altivec_h
1406     arpa_inet_h
1407     asm_mod_q
1408     asm_mod_y
1409     asm_types_h
1410     atomic_cas_ptr
1411     atomics_native
1412     attribute_may_alias
1413     attribute_packed
1414     cdio_paranoia_h
1415     cdio_paranoia_paranoia_h
1416     CL_cl_h
1417     clock_gettime
1418     closesocket
1419     cmov
1420     CommandLineToArgvW
1421     cpunop
1422     CryptGenRandom
1423     dcbzl
1424     dev_bktr_ioctl_bt848_h
1425     dev_bktr_ioctl_meteor_h
1426     dev_ic_bt8xx_h
1427     dev_video_bktr_ioctl_bt848_h
1428     dev_video_meteor_ioctl_meteor_h
1429     direct_h
1430     dlfcn_h
1431     dlopen
1432     dos_paths
1433     dxva_h
1434     ebp_available
1435     ebx_available
1436     fast_64bit
1437     fast_clz
1438     fast_cmov
1439     fcntl
1440     fork
1441     getaddrinfo
1442     gethrtime
1443     getopt
1444     GetProcessAffinityMask
1445     GetProcessMemoryInfo
1446     GetProcessTimes
1447     GetSystemTimeAsFileTime
1448     getrusage
1449     getservbyport
1450     gettimeofday
1451     glob
1452     gnu_as
1453     gsm_h
1454     ibm_asm
1455     inet_aton
1456     io_h
1457     isatty
1458     jack_port_get_latency_range
1459     kbhit
1460     ldbrx
1461     libdc1394_1
1462     libdc1394_2
1463     local_aligned_16
1464     local_aligned_8
1465     localtime_r
1466     loongson
1467     lzo1x_999_compress
1468     machine_ioctl_bt848_h
1469     machine_ioctl_meteor_h
1470     machine_rw_barrier
1471     makeinfo
1472     malloc_h
1473     MapViewOfFile
1474     memalign
1475     MemoryBarrier
1476     mkstemp
1477     mm_empty
1478     mmap
1479     mprotect
1480     msvcrt
1481     nanosleep
1482     openjpeg_1_5_openjpeg_h
1483     PeekNamedPipe
1484     perl
1485     pod2man
1486     poll_h
1487     posix_memalign
1488     pthread_cancel
1489     rdtsc
1490     rsync_contimeout
1491     sched_getaffinity
1492     sdl
1493     SetConsoleTextAttribute
1494     setmode
1495     setrlimit
1496     Sleep
1497     sndio_h
1498     socklen_t
1499     soundcard_h
1500     strerror_r
1501     struct_addrinfo
1502     struct_group_source_req
1503     struct_ip_mreq_source
1504     struct_ipv6_mreq
1505     struct_pollfd
1506     struct_rusage_ru_maxrss
1507     struct_sctp_event_subscribe
1508     struct_sockaddr_in6
1509     struct_sockaddr_sa_len
1510     struct_sockaddr_storage
1511     struct_v4l2_frmivalenum_discrete
1512     symver_asm_label
1513     symver_gnu_asm
1514     sync_val_compare_and_swap
1515     sysconf
1516     sysctl
1517     sys_mman_h
1518     sys_param_h
1519     sys_resource_h
1520     sys_select_h
1521     sys_soundcard_h
1522     sys_time_h
1523     sys_videoio_h
1524     termios_h
1525     texi2html
1526     threads
1527     unistd_h
1528     usleep
1529     vfp_args
1530     VirtualAlloc
1531     windows_h
1532     winsock2_h
1533     xform_asm
1534     xmm_clobbers
1535 "
1536
1537 # options emitted with CONFIG_ prefix but not available on the command line
1538 CONFIG_EXTRA="
1539     aandcttables
1540     ac3dsp
1541     audio_frame_queue
1542     dsputil
1543     frame_thread_encoder
1544     gcrypt
1545     golomb
1546     gplv3
1547     h264chroma
1548     h264dsp
1549     h264pred
1550     h264qpel
1551     hpeldsp
1552     huffman
1553     lgplv3
1554     lpc
1555     mpegaudio
1556     mpegaudiodsp
1557     mpegvideo
1558     mpegvideoenc
1559     nettle
1560     rangecoder
1561     rtpdec
1562     rtpenc_chain
1563     sinewin
1564     videodsp
1565     vp3dsp
1566 "
1567
1568 CMDLINE_SELECT="
1569     $ARCH_EXT_LIST
1570     $CONFIG_LIST
1571     $HAVE_LIST_CMDLINE
1572     $THREADS_LIST
1573     asm
1574     cross_compile
1575     debug
1576     extra_warnings
1577     logging
1578     lto
1579     optimizations
1580     stripping
1581 "
1582
1583 PATHS_LIST='
1584     bindir
1585     datadir
1586     incdir
1587     libdir
1588     mandir
1589     prefix
1590     shlibdir
1591 '
1592
1593 CMDLINE_SET="
1594     $PATHS_LIST
1595     ar
1596     arch
1597     as
1598     assert_level
1599     build_suffix
1600     cc
1601     cpu
1602     cross_prefix
1603     cxx
1604     dep_cc
1605     extra_version
1606     host_cc
1607     host_cflags
1608     host_ld
1609     host_ldflags
1610     host_libs
1611     host_os
1612     install
1613     ld
1614     logfile
1615     malloc_prefix
1616     nm
1617     optflags
1618     pkg_config
1619     progs_suffix
1620     random_seed
1621     samples
1622     strip
1623     sysinclude
1624     sysroot
1625     target_exec
1626     target_os
1627     target_path
1628     toolchain
1629     valgrind
1630     yasmexe
1631 "
1632
1633 CMDLINE_APPEND="
1634     extra_cflags
1635     extra_cxxflags
1636     host_cppflags
1637 "
1638
1639 # code dependency declarations
1640
1641 # architecture extensions
1642
1643 armv5te_deps="arm"
1644 armv6_deps="arm"
1645 armv6t2_deps="arm"
1646 neon_deps="arm"
1647 vfp_deps="arm"
1648 vfpv3_deps="vfp"
1649
1650 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1651
1652 mipsfpu_deps="mips"
1653 mips32r2_deps="mips"
1654 mipsdspr1_deps="mips"
1655 mipsdspr2_deps="mips"
1656
1657 altivec_deps="ppc"
1658 ppc4xx_deps="ppc"
1659
1660 vis_deps="sparc"
1661
1662 x86_64_suggest="cmov fast_cmov"
1663
1664 amd3dnow_deps="mmx"
1665 amd3dnowext_deps="amd3dnow"
1666 mmx_deps="x86"
1667 mmxext_deps="mmx"
1668 sse_deps="mmxext"
1669 sse2_deps="sse"
1670 sse3_deps="sse2"
1671 ssse3_deps="sse3"
1672 sse4_deps="ssse3"
1673 sse42_deps="sse4"
1674 avx_deps="sse42"
1675 fma4_deps="avx"
1676
1677 mmx_external_deps="yasm"
1678 mmx_inline_deps="inline_asm"
1679 mmx_suggest="mmx_external mmx_inline"
1680
1681 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1682     eval dep=\$${ext}_deps
1683     eval ${ext}_external_deps='"${dep}_external"'
1684     eval ${ext}_inline_deps='"${dep}_inline"'
1685     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1686 done
1687
1688 aligned_stack_if_any="ppc x86"
1689 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1690 fast_clz_if_any="alpha avr32 mips ppc x86"
1691 fast_unaligned_if_any="ppc x86"
1692
1693 inline_asm_deps="!tms470"
1694 need_memalign="altivec neon sse"
1695
1696 symver_if_any="symver_asm_label symver_gnu_asm"
1697
1698 log2_deps="!msvcrt"
1699
1700 # subsystems
1701 dct_select="rdft"
1702 error_resilience_select="dsputil"
1703 frame_thread_encoder_deps="encoders threads"
1704 lpc_select="dsputil"
1705 mdct_select="fft"
1706 rdft_select="fft"
1707 mpegaudio_select="mpegaudiodsp"
1708 mpegaudiodsp_select="dct"
1709 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1710 mpegvideoenc_select="mpegvideo"
1711
1712 # decoders / encoders
1713 aac_decoder_select="mdct sinewin"
1714 aac_encoder_select="audio_frame_queue mdct sinewin"
1715 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1716 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1717 ac3_encoder_select="mdct ac3dsp dsputil"
1718 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1719 alac_encoder_select="lpc"
1720 als_decoder_select="dsputil"
1721 amrnb_decoder_select="lsp"
1722 amrwb_decoder_select="lsp"
1723 amv_decoder_select="dsputil hpeldsp"
1724 amv_encoder_select="aandcttables"
1725 ape_decoder_select="dsputil"
1726 asv1_decoder_select="dsputil"
1727 asv1_encoder_select="dsputil"
1728 asv2_decoder_select="dsputil"
1729 asv2_encoder_select="dsputil"
1730 atrac1_decoder_select="mdct sinewin"
1731 atrac3_decoder_select="mdct"
1732 bink_decoder_select="dsputil hpeldsp"
1733 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1734 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1735 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1736 cllc_decoder_select="dsputil"
1737 comfortnoise_encoder_select="lpc"
1738 cook_decoder_select="dsputil mdct sinewin"
1739 cscd_decoder_select="lzo"
1740 cscd_decoder_suggest="zlib"
1741 dca_decoder_select="mdct"
1742 dirac_decoder_select="dsputil dwt golomb videodsp"
1743 dnxhd_decoder_select="dsputil"
1744 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1745 dvvideo_decoder_select="dsputil"
1746 dvvideo_encoder_select="dsputil"
1747 dxa_decoder_select="zlib"
1748 eac3_decoder_select="ac3_decoder"
1749 eac3_encoder_select="ac3_encoder"
1750 eamad_decoder_select="aandcttables dsputil mpegvideo"
1751 eatgq_decoder_select="aandcttables"
1752 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1753 exr_decoder_select="zlib"
1754 ffv1_decoder_select="dsputil golomb rangecoder"
1755 ffv1_encoder_select="dsputil rangecoder"
1756 ffvhuff_decoder_select="dsputil"
1757 ffvhuff_encoder_select="dsputil huffman"
1758 flac_decoder_select="golomb"
1759 flac_encoder_select="dsputil golomb lpc"
1760 flashsv_decoder_select="zlib"
1761 flashsv_encoder_select="zlib"
1762 flashsv2_encoder_select="zlib"
1763 flashsv2_decoder_select="zlib"
1764 flv_decoder_select="h263_decoder"
1765 flv_encoder_select="h263_encoder"
1766 fourxm_decoder_select="dsputil"
1767 fraps_decoder_select="dsputil huffman"
1768 g729_decoder_select="dsputil"
1769 h261_decoder_select="error_resilience mpegvideo"
1770 h261_encoder_select="aandcttables mpegvideoenc"
1771 h263_decoder_select="error_resilience h263_parser mpegvideo"
1772 h263_encoder_select="aandcttables mpegvideoenc"
1773 h263i_decoder_select="h263_decoder"
1774 h263p_encoder_select="h263_encoder"
1775 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1776 h264_decoder_suggest="error_resilience"
1777 huffyuv_decoder_select="dsputil"
1778 huffyuv_encoder_select="dsputil huffman"
1779 iac_decoder_select="dsputil fft mdct sinewin"
1780 imc_decoder_select="dsputil fft mdct sinewin"
1781 indeo3_decoder_select="hpeldsp"
1782 interplay_video_decoder_select="hpeldsp"
1783 jpegls_decoder_select="dsputil golomb hpeldsp"
1784 jpegls_encoder_select="golomb"
1785 jv_decoder_select="dsputil"
1786 lagarith_decoder_select="dsputil"
1787 ljpeg_encoder_select="aandcttables mpegvideoenc"
1788 loco_decoder_select="golomb"
1789 mdec_decoder_select="dsputil error_resilience mpegvideo"
1790 mimic_decoder_select="dsputil hpeldsp"
1791 mjpeg_decoder_select="dsputil hpeldsp"
1792 mjpegb_decoder_select="dsputil hpeldsp"
1793 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1794 mlp_decoder_select="dsputil mlp_parser"
1795 motionpixels_decoder_select="dsputil"
1796 mp1_decoder_select="mpegaudio"
1797 mp1float_decoder_select="mpegaudio"
1798 mp2_decoder_select="mpegaudio"
1799 mp2float_decoder_select="mpegaudio"
1800 mp3_decoder_select="mpegaudio"
1801 mp3adu_decoder_select="mpegaudio"
1802 mp3adufloat_decoder_select="mpegaudio"
1803 mp3float_decoder_select="mpegaudio"
1804 mp3on4_decoder_select="mpegaudio"
1805 mp3on4float_decoder_select="mpegaudio"
1806 mpc7_decoder_select="dsputil mpegaudiodsp"
1807 mpc8_decoder_select="dsputil mpegaudiodsp"
1808 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1809 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1810 mpeg1video_decoder_select="error_resilience mpegvideo"
1811 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1812 mpeg2video_decoder_select="error_resilience mpegvideo"
1813 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1814 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1815 mpeg4_encoder_select="h263_encoder"
1816 msmpeg4v1_decoder_select="h263_decoder"
1817 msmpeg4v2_decoder_select="h263_decoder"
1818 msmpeg4v2_encoder_select="h263_encoder"
1819 msmpeg4v3_decoder_select="h263_decoder"
1820 msmpeg4v3_encoder_select="h263_encoder"
1821 mss2_decoder_select="error_resilience vc1_decoder"
1822 mxpeg_decoder_select="dsputil hpeldsp"
1823 nellymoser_decoder_select="mdct sinewin"
1824 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1825 nuv_decoder_select="dsputil lzo"
1826 png_decoder_select="zlib"
1827 png_encoder_select="dsputil zlib"
1828 prores_decoder_select="dsputil"
1829 prores_encoder_select="dsputil"
1830 qcelp_decoder_select="lsp"
1831 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1832 ra_144_encoder_select="audio_frame_queue lpc"
1833 ralf_decoder_select="golomb"
1834 rtjpeg_decoder_select="dsputil"
1835 rv10_decoder_select="error_resilience h263_decoder"
1836 rv10_encoder_select="h263_encoder"
1837 rv20_decoder_select="error_resilience h263_decoder"
1838 rv20_encoder_select="h263_encoder"
1839 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1840 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1841 shorten_decoder_select="golomb"
1842 sipr_decoder_select="lsp"
1843 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1844 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1845 sonic_decoder_select="golomb"
1846 sonic_encoder_select="golomb"
1847 sonic_ls_encoder_select="golomb"
1848 sp5x_decoder_select="dsputil hpeldsp"
1849 svq1_decoder_select="hpeldsp"
1850 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1851 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1852 svq3_decoder_suggest="error_resilience zlib"
1853 tak_decoder_select="dsputil"
1854 theora_decoder_select="vp3_decoder"
1855 tiff_decoder_suggest="zlib"
1856 tiff_encoder_suggest="zlib"
1857 thp_decoder_select="dsputil hpeldsp"
1858 truehd_decoder_select="mlp_parser"
1859 truemotion2_decoder_select="dsputil"
1860 truespeech_decoder_select="dsputil"
1861 tscc_decoder_select="zlib"
1862 twinvq_decoder_select="mdct lsp sinewin"
1863 utvideo_decoder_select="dsputil"
1864 utvideo_encoder_select="dsputil huffman"
1865 vble_decoder_select="dsputil"
1866 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1867 vc1image_decoder_select="vc1_decoder"
1868 vorbis_decoder_select="mdct"
1869 vorbis_encoder_select="mdct"
1870 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1871 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1872 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1873 vp6a_decoder_select="vp6_decoder"
1874 vp6f_decoder_select="vp6_decoder"
1875 vp8_decoder_select="h264pred videodsp"
1876 wmapro_decoder_select="mdct sinewin"
1877 wmav1_decoder_select="mdct sinewin"
1878 wmav1_encoder_select="mdct sinewin"
1879 wmav2_decoder_select="mdct sinewin"
1880 wmav2_encoder_select="mdct sinewin"
1881 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1882 wmv1_decoder_select="h263_decoder"
1883 wmv1_encoder_select="h263_encoder"
1884 wmv2_decoder_select="h263_decoder videodsp"
1885 wmv2_encoder_select="h263_encoder"
1886 wmv3_decoder_select="vc1_decoder"
1887 wmv3image_decoder_select="wmv3_decoder"
1888 zerocodec_decoder_select="zlib"
1889 zlib_decoder_select="zlib"
1890 zlib_encoder_select="zlib"
1891 zmbv_decoder_select="zlib"
1892 zmbv_encoder_select="zlib"
1893
1894 # hardware accelerators
1895 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1896 dxva2_deps="dxva2api_h"
1897 vaapi_deps="va_va_h"
1898 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1899 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1900 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1901
1902 h263_vaapi_hwaccel_deps="vaapi"
1903 h263_vaapi_hwaccel_select="h263_decoder"
1904 h263_vdpau_hwaccel_deps="vdpau"
1905 h263_vdpau_hwaccel_select="h263_decoder"
1906 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1907 h264_dxva2_hwaccel_deps="dxva2"
1908 h264_dxva2_hwaccel_select="h264_decoder"
1909 h264_vaapi_hwaccel_deps="vaapi"
1910 h264_vaapi_hwaccel_select="h264_decoder"
1911 h264_vda_decoder_deps="vda"
1912 h264_vda_decoder_select="h264_decoder"
1913 h264_vda_hwaccel_deps="vda"
1914 h264_vda_hwaccel_select="h264_decoder"
1915 h264_vdpau_decoder_deps="vdpau"
1916 h264_vdpau_decoder_select="h264_decoder"
1917 h264_vdpau_hwaccel_deps="vdpau"
1918 h264_vdpau_hwaccel_select="h264_decoder"
1919 mpeg_vdpau_decoder_deps="vdpau"
1920 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1921 mpeg1_vdpau_decoder_deps="vdpau"
1922 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1923 mpeg1_vdpau_hwaccel_deps="vdpau"
1924 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1925 mpeg2_crystalhd_decoder_select="crystalhd"
1926 mpeg2_dxva2_hwaccel_deps="dxva2"
1927 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1928 mpeg2_vaapi_hwaccel_deps="vaapi"
1929 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1930 mpeg2_vdpau_hwaccel_deps="vdpau"
1931 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1932 mpeg4_crystalhd_decoder_select="crystalhd"
1933 mpeg4_vaapi_hwaccel_deps="vaapi"
1934 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1935 mpeg4_vdpau_decoder_deps="vdpau"
1936 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1937 mpeg4_vdpau_hwaccel_deps="vdpau"
1938 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1939 msmpeg4_crystalhd_decoder_select="crystalhd"
1940 vc1_crystalhd_decoder_select="crystalhd"
1941 vc1_dxva2_hwaccel_deps="dxva2"
1942 vc1_dxva2_hwaccel_select="vc1_decoder"
1943 vc1_vaapi_hwaccel_deps="vaapi"
1944 vc1_vaapi_hwaccel_select="vc1_decoder"
1945 vc1_vdpau_decoder_deps="vdpau"
1946 vc1_vdpau_decoder_select="vc1_decoder"
1947 vc1_vdpau_hwaccel_deps="vdpau"
1948 vc1_vdpau_hwaccel_select="vc1_decoder"
1949 wmv3_crystalhd_decoder_select="crystalhd"
1950 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1951 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1952 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1953 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1954
1955 # parsers
1956 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1957 mpeg4video_parser_select="error_resilience mpegvideo"
1958 mpegvideo_parser_select="error_resilience mpegvideo"
1959 vc1_parser_select="mpegvideo"
1960
1961 # external libraries
1962 libaacplus_encoder_deps="libaacplus"
1963 libcelt_decoder_deps="libcelt"
1964 libfaac_encoder_deps="libfaac"
1965 libfaac_encoder_select="audio_frame_queue"
1966 libfdk_aac_encoder_deps="libfdk_aac"
1967 libfdk_aac_encoder_select="audio_frame_queue"
1968 libgsm_decoder_deps="libgsm"
1969 libgsm_encoder_deps="libgsm"
1970 libgsm_ms_decoder_deps="libgsm"
1971 libgsm_ms_encoder_deps="libgsm"
1972 libilbc_decoder_deps="libilbc"
1973 libilbc_encoder_deps="libilbc"
1974 libmodplug_demuxer_deps="libmodplug"
1975 libmp3lame_encoder_deps="libmp3lame"
1976 libmp3lame_encoder_select="audio_frame_queue"
1977 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1978 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1979 libopencore_amrnb_encoder_select="audio_frame_queue"
1980 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1981 libopenjpeg_decoder_deps="libopenjpeg"
1982 libopenjpeg_encoder_deps="libopenjpeg"
1983 libopus_decoder_deps="libopus"
1984 libopus_encoder_deps="libopus"
1985 libopus_encoder_select="audio_frame_queue"
1986 libquvi_demuxer_deps="libquvi"
1987 libschroedinger_decoder_deps="libschroedinger"
1988 libschroedinger_encoder_deps="libschroedinger"
1989 libshine_encoder_deps="libshine"
1990 libshine_encoder_select="audio_frame_queue"
1991 libspeex_decoder_deps="libspeex"
1992 libspeex_encoder_deps="libspeex"
1993 libspeex_encoder_select="audio_frame_queue"
1994 libstagefright_h264_decoder_deps="libstagefright_h264"
1995 libtheora_encoder_deps="libtheora"
1996 libtwolame_encoder_deps="libtwolame"
1997 libvo_aacenc_encoder_deps="libvo_aacenc"
1998 libvo_aacenc_encoder_select="audio_frame_queue"
1999 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2000 libvorbis_decoder_deps="libvorbis"
2001 libvorbis_encoder_deps="libvorbis"
2002 libvorbis_encoder_select="audio_frame_queue"
2003 libvpx_vp8_decoder_deps="libvpx"
2004 libvpx_vp8_encoder_deps="libvpx"
2005 libvpx_vp9_decoder_deps="libvpx"
2006 libvpx_vp9_encoder_deps="libvpx"
2007 libx264_encoder_deps="libx264"
2008 libx264rgb_encoder_deps="libx264"
2009 libxavs_encoder_deps="libxavs"
2010 libxvid_encoder_deps="libxvid"
2011 libutvideo_decoder_deps="libutvideo"
2012 libutvideo_encoder_deps="libutvideo"
2013
2014 # demuxers / muxers
2015 ac3_demuxer_select="ac3_parser"
2016 asf_stream_muxer_select="asf_muxer"
2017 avisynth_demuxer_deps="avisynth"
2018 dirac_demuxer_select="dirac_parser"
2019 dts_demuxer_select="dca_parser"
2020 dtshd_demuxer_select="dca_parser"
2021 eac3_demuxer_select="ac3_parser"
2022 f4v_muxer_select="mov_muxer"
2023 flac_demuxer_select="flac_parser"
2024 ipod_muxer_select="mov_muxer"
2025 ismv_muxer_select="mov_muxer"
2026 libnut_demuxer_deps="libnut"
2027 libnut_muxer_deps="libnut"
2028 matroska_audio_muxer_select="matroska_muxer"
2029 matroska_demuxer_suggest="bzlib lzo zlib"
2030 mov_demuxer_suggest="zlib"
2031 mov_muxer_select="rtpenc_chain"
2032 mp3_demuxer_select="mpegaudio_parser"
2033 mp4_muxer_select="mov_muxer"
2034 mpegts_muxer_select="adts_muxer latm_muxer"
2035 mpegtsraw_demuxer_select="mpegts_demuxer"
2036 mxf_d10_muxer_select="mxf_muxer"
2037 ogg_demuxer_select="golomb"
2038 psp_muxer_select="mov_muxer"
2039 rtp_demuxer_select="sdp_demuxer"
2040 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2041 rtsp_demuxer_select="http_protocol rtpdec"
2042 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2043 sap_demuxer_select="sdp_demuxer"
2044 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2045 sdp_demuxer_select="rtpdec"
2046 smoothstreaming_muxer_select="ismv_muxer"
2047 spdif_muxer_select="aac_parser"
2048 tak_demuxer_select="tak_parser"
2049 tg2_muxer_select="mov_muxer"
2050 tgp_muxer_select="mov_muxer"
2051 vobsub_demuxer_select="mpegps_demuxer"
2052 w64_demuxer_deps="wav_demuxer"
2053 w64_muxer_deps="wav_muxer"
2054
2055 # indevs / outdevs
2056 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2057 alsa_outdev_deps="alsa_asoundlib_h"
2058 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2059 caca_outdev_deps="libcaca"
2060 dshow_indev_deps="IBaseFilter"
2061 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2062 dv1394_indev_deps="dv1394 dv_demuxer"
2063 fbdev_indev_deps="linux_fb_h"
2064 iec61883_indev_deps="libiec61883"
2065 jack_indev_deps="jack_jack_h sem_timedwait"
2066 lavfi_indev_deps="avfilter"
2067 libcdio_indev_deps="libcdio"
2068 libdc1394_indev_deps="libdc1394"
2069 libv4l2_indev_deps="libv4l2"
2070 openal_indev_deps="openal"
2071 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2072 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2073 pulse_indev_deps="libpulse"
2074 sdl_outdev_deps="sdl"
2075 sndio_indev_deps="sndio_h"
2076 sndio_outdev_deps="sndio_h"
2077 v4l_indev_deps="linux_videodev_h"
2078 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2079 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2080 vfwcap_indev_extralibs="-lavicap32"
2081 x11grab_indev_deps="x11grab"
2082
2083 # protocols
2084 bluray_protocol_deps="libbluray"
2085 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2086 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2087 ffrtmpcrypt_protocol_select="tcp_protocol"
2088 ffrtmphttp_protocol_deps="!librtmp_protocol"
2089 ffrtmphttp_protocol_select="http_protocol"
2090 gopher_protocol_select="network"
2091 httpproxy_protocol_select="tcp_protocol"
2092 http_protocol_select="tcp_protocol"
2093 https_protocol_select="tls_protocol"
2094 librtmp_protocol_deps="librtmp"
2095 librtmpe_protocol_deps="librtmp"
2096 librtmps_protocol_deps="librtmp"
2097 librtmpt_protocol_deps="librtmp"
2098 librtmpte_protocol_deps="librtmp"
2099 mmsh_protocol_select="http_protocol"
2100 mmst_protocol_select="network"
2101 rtmp_protocol_deps="!librtmp_protocol"
2102 rtmp_protocol_select="tcp_protocol"
2103 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2104 rtmps_protocol_deps="!librtmp_protocol"
2105 rtmps_protocol_select="tls_protocol"
2106 rtmpt_protocol_select="ffrtmphttp_protocol"
2107 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2108 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2109 rtp_protocol_select="udp_protocol"
2110 sctp_protocol_deps="struct_sctp_event_subscribe"
2111 sctp_protocol_select="network"
2112 srtp_protocol_select="rtp_protocol"
2113 tcp_protocol_select="network"
2114 tls_protocol_deps_any="openssl gnutls"
2115 tls_protocol_select="tcp_protocol"
2116 udp_protocol_select="network"
2117
2118 # filters
2119 aconvert_filter_deps="swresample"
2120 amovie_filter_deps="avcodec avformat"
2121 aresample_filter_deps="swresample"
2122 ass_filter_deps="libass"
2123 asyncts_filter_deps="avresample"
2124 atempo_filter_deps="avcodec rdft"
2125 blackframe_filter_deps="gpl"
2126 boxblur_filter_deps="gpl"
2127 colormatrix_filter_deps="gpl"
2128 cropdetect_filter_deps="gpl"
2129 delogo_filter_deps="gpl"
2130 deshake_filter_deps="avcodec"
2131 deshake_filter_select="dsputil"
2132 drawtext_filter_deps="libfreetype"
2133 ebur128_filter_deps="gpl"
2134 flite_filter_deps="libflite"
2135 frei0r_filter_deps="frei0r dlopen"
2136 frei0r_filter_extralibs='$ldl'
2137 frei0r_src_filter_deps="frei0r dlopen"
2138 frei0r_src_filter_extralibs='$ldl'
2139 geq_filter_deps="gpl"
2140 histeq_filter_deps="gpl"
2141 hqdn3d_filter_deps="gpl"
2142 hue_filter_deps="gpl"
2143 interlace_filter_deps="gpl"
2144 kerndeint_filter_deps="gpl"
2145 movie_filter_deps="avcodec avformat"
2146 mp_filter_deps="gpl avcodec swscale inline_asm"
2147 mpdecimate_filter_deps="gpl avcodec"
2148 mptestsrc_filter_deps="gpl"
2149 negate_filter_deps="lut_filter"
2150 noise_filter_deps="gpl"
2151 resample_filter_deps="avresample"
2152 ocv_filter_deps="libopencv"
2153 pan_filter_deps="swresample"
2154 pp_filter_deps="gpl postproc"
2155 removelogo_filter_deps="avcodec avformat swscale"
2156 scale_filter_deps="swscale"
2157 smartblur_filter_deps="gpl swscale"
2158 showspectrum_filter_deps="avcodec rdft"
2159 stereo3d_filter_deps="gpl"
2160 subtitles_filter_deps="avformat avcodec libass"
2161 super2xsai_filter_deps="gpl"
2162 tinterlace_filter_deps="gpl"
2163 vidstabdetect_filter_deps="libvidstab"
2164 vidstabtransform_filter_deps="libvidstab"
2165 yadif_filter_deps="gpl"
2166 pixfmts_super2xsai_test_deps="super2xsai_filter"
2167 tinterlace_merge_test_deps="tinterlace_filter"
2168 tinterlace_pad_test_deps="tinterlace_filter"
2169
2170 # libraries
2171 avcodec_deps="avutil"
2172 avdevice_deps="avutil avcodec avformat"
2173 avfilter_deps="avutil"
2174 avformat_deps="avutil avcodec"
2175 avresample_deps="avutil"
2176 postproc_deps="avutil gpl"
2177 swscale_deps="avutil"
2178
2179 # programs
2180 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2181 ffmpeg_select="format_filter aformat_filter
2182                setpts_filter null_filter anull_filter"
2183 ffplay_deps="avcodec avformat swscale swresample sdl"
2184 ffplay_select="rdft crop_filter"
2185 ffprobe_deps="avcodec avformat"
2186 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2187 ffserver_extralibs='$ldl'
2188
2189 # documentation
2190 podpages_deps="perl"
2191 manpages_deps="perl pod2man"
2192 htmlpages_deps="texi2html"
2193 txtpages_deps="makeinfo"
2194 doc_deps_any="manpages htmlpages podpages txtpages"
2195
2196 # default parameters
2197
2198 logfile="config.log"
2199
2200 # installation paths
2201 prefix_default="/usr/local"
2202 bindir_default='${prefix}/bin'
2203 datadir_default='${prefix}/share/ffmpeg'
2204 incdir_default='${prefix}/include'
2205 libdir_default='${prefix}/lib'
2206 mandir_default='${prefix}/share/man'
2207 shlibdir_default="$libdir_default"
2208
2209 # toolchain
2210 ar_default="ar"
2211 cc_default="gcc"
2212 cxx_default="g++"
2213 host_cc_default="gcc"
2214 cp_f="cp -f"
2215 install="install"
2216 ln_s="ln -s -f"
2217 nm_default="nm -g"
2218 objformat="elf"
2219 pkg_config_default=pkg-config
2220 ranlib="ranlib"
2221 strip_default="strip"
2222 yasmexe_default="yasm"
2223
2224 nogas=":"
2225
2226 # machine
2227 arch_default=$(uname -m)
2228 cpu="generic"
2229
2230 # OS
2231 target_os_default=$(tolower $(uname -s))
2232 host_os=$target_os_default
2233
2234 # configurable options
2235 enable $PROGRAM_LIST
2236 enable $DOCUMENT_LIST
2237 enable $(filter_out avresample $LIBRARY_LIST)
2238 enable stripping
2239
2240 enable asm
2241 enable debug
2242 enable doc
2243 enable optimizations
2244 enable runtime_cpudetect
2245 enable safe_bitstream_reader
2246 enable static
2247 enable swscale_alpha
2248
2249 # By default, enable only those hwaccels that have no external dependencies.
2250 enable dxva2 vdpau
2251
2252 # build settings
2253 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2254 FFSERVERLDFLAGS=-Wl,-E
2255 LIBPREF="lib"
2256 LIBSUF=".a"
2257 FULLNAME='$(NAME)$(BUILDSUF)'
2258 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2259 SLIBPREF="lib"
2260 SLIBSUF=".so"
2261 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2262 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2263 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2264 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2265 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2266 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2267
2268 asflags_filter=echo
2269 cflags_filter=echo
2270 ldflags_filter=echo
2271
2272 AS_C='-c'
2273 AS_O='-o $@'
2274 CC_C='-c'
2275 CC_E='-E -o $@'
2276 CC_O='-o $@'
2277 CXX_C='-c'
2278 CXX_O='-o $@'
2279 LD_O='-o $@'
2280 LD_LIB='-l%'
2281 LD_PATH='-L'
2282 HOSTCC_C='-c'
2283 HOSTCC_O='-o $@'
2284 HOSTLD_O='-o $@'
2285
2286 host_cflags='-O3 -g'
2287 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2288 host_libs='-lm'
2289 host_cflags_filter=echo
2290 host_ldflags_filter=echo
2291
2292 target_path='$(CURDIR)'
2293
2294 # since the object filename is not given with the -MM flag, the compiler
2295 # is only able to print the basename, and we must add the path ourselves
2296 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2297 DEPFLAGS='-MM'
2298
2299 # find source path
2300 if test -f configure; then
2301     source_path=.
2302 else
2303     source_path=$(cd $(dirname "$0"); pwd)
2304     echo "$source_path" | grep -q '[[:blank:]]' &&
2305         die "Out of tree builds are impossible with whitespace in source path."
2306     test -e "$source_path/config.h" &&
2307         die "Out of tree builds are impossible with config.h in source dir."
2308 fi
2309
2310 for v in "$@"; do
2311     r=${v#*=}
2312     l=${v%"$r"}
2313     r=$(sh_quote "$r")
2314     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2315 done
2316
2317 find_things(){
2318     thing=$1
2319     pattern=$2
2320     file=$source_path/$3
2321     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2322 }
2323
2324 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2325 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2326 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2327 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2328 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2329 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2330 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2331 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2332 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2333 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2334 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2335
2336 ALL_COMPONENTS="
2337     $BSF_LIST
2338     $DECODER_LIST
2339     $DEMUXER_LIST
2340     $ENCODER_LIST
2341     $FILTER_LIST
2342     $HWACCEL_LIST
2343     $INDEV_LIST
2344     $MUXER_LIST
2345     $OUTDEV_LIST
2346     $PARSER_LIST
2347     $PROTOCOL_LIST
2348 "
2349
2350 for n in $COMPONENT_LIST; do
2351     v=$(toupper ${n%s})_LIST
2352     eval enable \$$v
2353     eval ${n}_if_any="\$$v"
2354 done
2355
2356 enable $ARCH_EXT_LIST
2357
2358 die_unknown(){
2359     echo "Unknown option \"$1\"."
2360     echo "See $0 --help for available options."
2361     exit 1
2362 }
2363
2364 print_3_columns() {
2365     cat | tr ' ' '\n' | sort | pr -r -3 -t
2366 }
2367
2368 show_list() {
2369     suffix=_$1
2370     shift
2371     echo $* | sed s/$suffix//g | print_3_columns
2372     exit 0
2373 }
2374
2375 rand_list(){
2376     IFS=', '
2377     set -- $*
2378     unset IFS
2379     for thing; do
2380         comp=${thing%:*}
2381         prob=${thing#$comp}
2382         prob=${prob#:}
2383         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2384         echo "prob ${prob:-0.5}"
2385         printf '%s\n' $comp
2386     done
2387 }
2388
2389 do_random(){
2390     action=$1
2391     shift
2392     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2393     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2394 }
2395
2396 for opt do
2397     optval="${opt#*=}"
2398     case "$opt" in
2399         --extra-ldflags=*)
2400             add_ldflags $optval
2401         ;;
2402         --extra-libs=*)
2403             add_extralibs $optval
2404         ;;
2405         --disable-devices)
2406             disable $INDEV_LIST $OUTDEV_LIST
2407         ;;
2408         --enable-debug=*)
2409             debuglevel="$optval"
2410         ;;
2411         --disable-programs)
2412             disable $PROGRAM_LIST
2413         ;;
2414         --disable-everything)
2415             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2416         ;;
2417         --disable-all)
2418             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2419             disable $LIBRARY_LIST $PROGRAM_LIST doc
2420         ;;
2421         --enable-random|--disable-random)
2422             action=${opt%%-random}
2423             do_random ${action#--} $COMPONENT_LIST
2424         ;;
2425         --enable-random=*|--disable-random=*)
2426             action=${opt%%-random=*}
2427             do_random ${action#--} $optval
2428         ;;
2429         --enable-*=*|--disable-*=*)
2430             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2431             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2432             eval list=\$$(toupper $thing)_LIST
2433             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2434             list=$(filter "$name" $list)
2435             [ "$list" = "" ] && warn "Option $opt did not match anything"
2436             $action $list
2437         ;;
2438         --enable-?*|--disable-?*)
2439             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2440             if is_in $option $COMPONENT_LIST; then
2441                 test $action = disable && action=unset
2442                 eval $action \$$(toupper ${option%s})_LIST
2443             elif is_in $option $CMDLINE_SELECT; then
2444                 $action $option
2445             else
2446                 die_unknown $opt
2447             fi
2448         ;;
2449         --list-*)
2450             NAME="${opt#--list-}"
2451             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2452             NAME=${NAME%s}
2453             eval show_list $NAME \$$(toupper $NAME)_LIST
2454         ;;
2455         --help|-h) show_help
2456         ;;
2457         --fatal-warnings) enable fatal_warnings
2458         ;;
2459         *)
2460             optname="${opt%%=*}"
2461             optname="${optname#--}"
2462             optname=$(echo "$optname" | sed 's/-/_/g')
2463             if is_in $optname $CMDLINE_SET; then
2464                 eval $optname='$optval'
2465             elif is_in $optname $CMDLINE_APPEND; then
2466                 append $optname "$optval"
2467             else
2468                 die_unknown $opt
2469             fi
2470         ;;
2471     esac
2472 done
2473
2474 disabled logging && logfile=/dev/null
2475
2476 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2477 set >> $logfile
2478
2479 test -n "$cross_prefix" && enable cross_compile
2480
2481 if enabled cross_compile; then
2482     test -n "$arch" && test -n "$target_os" ||
2483         die "Must specify target arch and OS when cross-compiling"
2484 fi
2485
2486 ar_default="${cross_prefix}${ar_default}"
2487 cc_default="${cross_prefix}${cc_default}"
2488 cxx_default="${cross_prefix}${cxx_default}"
2489 nm_default="${cross_prefix}${nm_default}"
2490 pkg_config_default="${cross_prefix}${pkg_config_default}"
2491 ranlib="${cross_prefix}${ranlib}"
2492 strip_default="${cross_prefix}${strip_default}"
2493
2494 sysinclude_default="${sysroot}/usr/include"
2495
2496 case "$toolchain" in
2497     clang-asan)
2498         cc_default="clang"
2499         add_cflags  -fsanitize=address
2500         add_ldflags -fsanitize=address
2501     ;;
2502     clang-tsan)
2503         cc_default="clang"
2504         add_cflags  -fsanitize=thread -pie
2505         add_ldflags -fsanitize=thread -pie
2506     ;;
2507     valgrind-memcheck)
2508         target_exec_default="valgrind"
2509         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"
2510     ;;
2511     msvc)
2512         cc_default="c99wrap cl"
2513         ld_default="c99wrap link"
2514         nm_default="dumpbin -symbols"
2515         ar_default="lib"
2516         target_os_default="win32"
2517     ;;
2518     gcov)
2519         add_cflags  -fprofile-arcs -ftest-coverage
2520         add_ldflags -fprofile-arcs -ftest-coverage
2521     ;;
2522     ?*)
2523         die "Unknown toolchain $toolchain"
2524     ;;
2525 esac
2526
2527 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2528 enabled cross_compile || host_cc_default=$cc
2529 set_default host_cc
2530
2531 if ! $pkg_config --version >/dev/null 2>&1; then
2532     warn "$pkg_config not found, library detection may fail."
2533     pkg_config=false
2534 fi
2535
2536 exesuf() {
2537     case $1 in
2538         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2539     esac
2540 }
2541
2542 EXESUF=$(exesuf $target_os)
2543 HOSTEXESUF=$(exesuf $host_os)
2544
2545 # set temporary file name
2546 : ${TMPDIR:=$TEMPDIR}
2547 : ${TMPDIR:=$TMP}
2548 : ${TMPDIR:=/tmp}
2549
2550 if ! check_cmd mktemp -u XXXXXX; then
2551     # simple replacement for missing mktemp
2552     # NOT SAFE FOR GENERAL USE
2553     mktemp(){
2554         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2555     }
2556 fi
2557
2558 tmpfile(){
2559     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2560         (set -C; exec > $tmp) 2>/dev/null ||
2561         die "Unable to create temporary file in $TMPDIR."
2562     append TMPFILES $tmp
2563     eval $1=$tmp
2564 }
2565
2566 trap 'rm -f -- $TMPFILES' EXIT
2567
2568 tmpfile TMPASM .asm
2569 tmpfile TMPC   .c
2570 tmpfile TMPCPP .cpp
2571 tmpfile TMPE   $EXESUF
2572 tmpfile TMPH   .h
2573 tmpfile TMPO   .o
2574 tmpfile TMPS   .S
2575 tmpfile TMPSH  .sh
2576 tmpfile TMPV   .ver
2577
2578 unset -f mktemp
2579
2580 chmod +x $TMPE
2581
2582 # make sure we can execute files in $TMPDIR
2583 cat > $TMPSH 2>> $logfile <<EOF
2584 #! /bin/sh
2585 EOF
2586 chmod +x $TMPSH >> $logfile 2>&1
2587 if ! $TMPSH >> $logfile 2>&1; then
2588     cat <<EOF
2589 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2590 variable to another directory and make sure that it is not mounted noexec.
2591 EOF
2592     die "Sanity test failed."
2593 fi
2594
2595 ccc_flags(){
2596     for flag; do
2597         case $flag in
2598             -std=c99)           echo -c99                       ;;
2599             -mcpu=*)            echo -arch ${flag#*=}           ;;
2600             -mieee)             echo -ieee                      ;;
2601             -O*|-fast)          echo $flag                      ;;
2602             -fno-math-errno)    echo -assume nomath_errno       ;;
2603             -g)                 echo -g3                        ;;
2604             -Wall)              echo -msg_enable level2         ;;
2605             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2606             -Wl,*)              echo $flag                      ;;
2607             -f*|-W*)                                            ;;
2608             *)                  echo $flag                      ;;
2609         esac
2610    done
2611 }
2612
2613 msvc_flags(){
2614     for flag; do
2615         case $flag in
2616             -fomit-frame-pointer) echo -Oy ;;
2617             -g)                   echo -Z7 ;;
2618             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2619                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2620                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2621                                        -wd4554 \
2622                                        -wd4996 -wd4273 ;;
2623             -std=c99)             ;;
2624             -fno-math-errno)      ;;
2625             -fno-common)          ;;
2626             -fno-signed-zeros)    ;;
2627             -fPIC)                ;;
2628             -lz)                  echo zlib.lib ;;
2629             -lavifil32)           echo vfw32.lib ;;
2630             -lavicap32)           echo vfw32.lib user32.lib ;;
2631             -l*)                  echo ${flag#-l}.lib ;;
2632             *)                    echo $flag ;;
2633         esac
2634     done
2635 }
2636
2637 pgi_flags(){
2638     for flag; do
2639         case $flag in
2640             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2641             -fomit-frame-pointer) echo -Mnoframe ;;
2642             -g)                   echo -gopt ;;
2643             *)                    echo $flag ;;
2644         esac
2645     done
2646 }
2647
2648 suncc_flags(){
2649     for flag; do
2650         case $flag in
2651             -march=*|-mcpu=*)
2652                 case "${flag#*=}" in
2653                     native)                   echo -xtarget=native       ;;
2654                     v9|niagara)               echo -xarch=sparc          ;;
2655                     ultrasparc)               echo -xarch=sparcvis       ;;
2656                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2657                     i586|pentium)             echo -xchip=pentium        ;;
2658                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2659                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2660                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2661                     pentium4*)          echo -xtarget=pentium4           ;;
2662                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2663                     *-sse3)             echo -xarch=sse3                 ;;
2664                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2665                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2666                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2667                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2668                     bdver*)                   echo -xarch=avx            ;;
2669                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2670                     k8|opteron|athlon64|athlon-fx)
2671                                               echo -xarch=sse2a          ;;
2672                     athlon*)                  echo -xarch=pentium_proa   ;;
2673                 esac
2674                 ;;
2675             -std=c99)             echo -xc99              ;;
2676             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2677             -fPIC)                echo -KPIC -xcode=pic32 ;;
2678             -W*,*)                echo $flag              ;;
2679             -f*-*|-W*|-mimpure-text)                      ;;
2680             -shared)              echo -G                 ;;
2681             *)                    echo $flag              ;;
2682         esac
2683     done
2684 }
2685
2686 tms470_flags(){
2687     for flag; do
2688         case $flag in
2689             -march=*|-mcpu=*)
2690                 case "${flag#*=}" in
2691                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2692                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2693                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2694                     armv6*|arm11*)          echo -mv=6   ;;
2695                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2696                                             echo -mv=5e  ;;
2697                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2698                 esac
2699                 ;;
2700             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2701             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2702             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2703             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2704             -msoft-float)   echo --float_support=vfplib       ;;
2705             -O[0-3]|-mf=*)  echo $flag                        ;;
2706             -g)             echo -g -mn                       ;;
2707             -pds=*)         echo $flag                        ;;
2708             -D*|-I*)        echo $flag                        ;;
2709             --gcc|--abi=*)  echo $flag                        ;;
2710             -me)            echo $flag                        ;;
2711         esac
2712     done
2713 }
2714
2715 probe_cc(){
2716     pfx=$1
2717     _cc=$2
2718
2719     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2720     unset _ld_o _ldflags _ld_lib _ld_path
2721     unset _depflags _DEPCMD _DEPFLAGS
2722     _flags_filter=echo
2723
2724     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2725         _type=llvm_gcc
2726         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2727         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2728         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2729         _cflags_speed='-O3'
2730         _cflags_size='-Os'
2731     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2732         _type=gcc
2733         gcc_version=$($_cc --version | head -n1)
2734         gcc_basever=$($_cc -dumpversion)
2735         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2736         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2737         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2738         if ! $_cc -dumpversion | grep -q '^2\.'; then
2739             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2740         fi
2741         _cflags_speed='-O3'
2742         _cflags_size='-Os'
2743     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2744         _type=icc
2745         _ident=$($_cc --version | head -n1)
2746         _depflags='-MMD'
2747         _cflags_speed='-O3'
2748         _cflags_size='-Os'
2749         _cflags_noopt='-O1'
2750     elif $_cc -v 2>&1 | grep -q xlc; then
2751         _type=xlc
2752         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2753         _cflags_speed='-O5'
2754         _cflags_size='-O5 -qcompact'
2755     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2756         _type=ccc
2757         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2758         _DEPFLAGS='-M'
2759         _cflags_speed='-fast'
2760         _cflags_size='-O1'
2761         _flags_filter=ccc_flags
2762     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2763         test -d "$sysroot" || die "No valid sysroot specified."
2764         _type=armcc
2765         _ident=$($_cc --vsn | head -n1)
2766         armcc_conf="$PWD/armcc.conf"
2767         $_cc --arm_linux_configure                 \
2768              --arm_linux_config_file="$armcc_conf" \
2769              --configure_sysroot="$sysroot"        \
2770              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2771              die "Error creating armcc configuration file."
2772         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2773         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2774         as_default="${cross_prefix}gcc"
2775         _depflags='-MMD'
2776         _cflags_speed='-O3'
2777         _cflags_size='-Os'
2778     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2779         _type=tms470
2780         _ident=$($_cc -version | head -n1 | tr -s ' ')
2781         _flags='--gcc --abi=eabi -me'
2782         _cc_e='-ppl -fe=$@'
2783         _cc_o='-fe=$@'
2784         _depflags='-ppa -ppd=$(@:.o=.d)'
2785         _cflags_speed='-O3 -mf=5'
2786         _cflags_size='-O3 -mf=2'
2787         _flags_filter=tms470_flags
2788     elif $_cc -v 2>&1 | grep -q clang; then
2789         _type=clang
2790         _ident=$($_cc --version | head -n1)
2791         _depflags='-MMD'
2792         _cflags_speed='-O3'
2793         _cflags_size='-Os'
2794     elif $_cc -V 2>&1 | grep -q Sun; then
2795         _type=suncc
2796         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2797         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2798         _DEPFLAGS='-xM1 -xc99'
2799         _ldflags='-std=c99'
2800         _cflags_speed='-O5'
2801         _cflags_size='-O5 -xspace'
2802         _flags_filter=suncc_flags
2803     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2804         _type=pathscale
2805         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2806         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2807         _cflags_speed='-O2'
2808         _cflags_size='-Os'
2809         _flags_filter='filter_out -Wdisabled-optimization'
2810     elif $_cc -v 2>&1 | grep -q Open64; then
2811         _type=open64
2812         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2813         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2814         _cflags_speed='-O2'
2815         _cflags_size='-Os'
2816         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2817     elif $_cc -V 2>&1 | grep -q Portland; then
2818         _type=pgi
2819         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2820         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2821         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2822         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2823         _cflags_noopt="-O"
2824         _flags_filter=pgi_flags
2825     elif $_cc 2>&1 | grep -q Microsoft; then
2826         _type=msvc
2827         _ident=$($cc 2>&1 | head -n1)
2828         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2829         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2830         _cflags_speed="-O2"
2831         _cflags_size="-O1"
2832         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2833         if $_cc 2>&1 | grep -q Linker; then
2834             _ld_o='-out $@'
2835         else
2836             _ld_o='-Fe$@'
2837         fi
2838         _cc_o='-Fo $@'
2839         _cc_e='-P -Fi $@'
2840         _flags_filter=msvc_flags
2841         _ld_lib='lib%.a'
2842         _ld_path='-libpath:'
2843         _flags='-nologo'
2844         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2845         if [ $pfx = hostcc ]; then
2846             append _cflags -Dsnprintf=_snprintf
2847         fi
2848         disable stripping
2849     fi
2850
2851     eval ${pfx}_type=\$_type
2852     eval ${pfx}_ident=\$_ident
2853 }
2854
2855 set_ccvars(){
2856     eval ${1}_C=\${_cc_c-\${${1}_C}}
2857     eval ${1}_E=\${_cc_e-\${${1}_E}}
2858     eval ${1}_O=\${_cc_o-\${${1}_O}}
2859
2860     if [ -n "$_depflags" ]; then
2861         eval ${1}_DEPFLAGS=\$_depflags
2862     else
2863         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2864         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2865         eval DEP${1}FLAGS=\$_flags
2866     fi
2867 }
2868
2869 probe_cc cc "$cc"
2870 cflags_filter=$_flags_filter
2871 cflags_speed=$_cflags_speed
2872 cflags_size=$_cflags_size
2873 cflags_noopt=$_cflags_noopt
2874 add_cflags $_flags $_cflags
2875 cc_ldflags=$_ldflags
2876 set_ccvars CC
2877
2878 probe_cc hostcc "$host_cc"
2879 host_cflags_filter=$_flags_filter
2880 add_host_cflags  $_flags $_cflags
2881 set_ccvars HOSTCC
2882
2883 test -n "$cc_type" && enable $cc_type ||
2884     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2885
2886 : ${as_default:=$cc}
2887 : ${dep_cc_default:=$cc}
2888 : ${ld_default:=$cc}
2889 : ${host_ld_default:=$host_cc}
2890 set_default ar as dep_cc ld host_ld
2891
2892 probe_cc as "$as"
2893 asflags_filter=$_flags_filter
2894 add_asflags $_flags $_cflags
2895 set_ccvars AS
2896
2897 probe_cc ld "$ld"
2898 ldflags_filter=$_flags_filter
2899 add_ldflags $_flags $_ldflags
2900 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2901 LD_O=${_ld_o-$LD_O}
2902 LD_LIB=${_ld_lib-$LD_LIB}
2903 LD_PATH=${_ld_path-$LD_PATH}
2904
2905 probe_cc hostld "$host_ld"
2906 host_ldflags_filter=$_flags_filter
2907 add_host_ldflags $_flags $_ldflags
2908 HOSTLD_O=${_ld_o-$HOSTLD_O}
2909
2910 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2911     probe_cc depcc "$dep_cc"
2912     CCDEP=${_DEPCMD:-$DEPCMD}
2913     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2914     DEPCCFLAGS=$_flags
2915 fi
2916
2917 if $ar 2>&1 | grep -q Microsoft; then
2918     arflags="-nologo"
2919     ar_o='-out:$@'
2920 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2921     arflags="rq"
2922     ar_o='$@'
2923 else
2924     arflags="rc"
2925     ar_o='$@'
2926 fi
2927
2928 add_cflags $extra_cflags
2929 add_cxxflags $extra_cxxflags
2930 add_asflags $extra_cflags
2931
2932 if test -n "$sysroot"; then
2933     case "$cc_type" in
2934         gcc|llvm_gcc|clang)
2935             add_cppflags --sysroot="$sysroot"
2936             add_ldflags --sysroot="$sysroot"
2937         ;;
2938         tms470)
2939             add_cppflags -I"$sysinclude"
2940             add_ldflags  --sysroot="$sysroot"
2941         ;;
2942     esac
2943 fi
2944
2945 if test "$cpu" = host; then
2946     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2947
2948     case "$cc_type" in
2949         gcc|llvm_gcc)
2950             check_native(){
2951                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2952                 sed -n "/cc1.*$1=/{
2953                             s/.*$1=\\([^ ]*\\).*/\\1/
2954                             p
2955                             q
2956                         }" $TMPE
2957             }
2958             cpu=$(check_native -march || check_native -mcpu)
2959         ;;
2960     esac
2961
2962     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2963 fi
2964
2965 # Deal with common $arch aliases
2966 case "$arch" in
2967     aarch64|arm64)
2968         arch="aarch64"
2969     ;;
2970     arm*|iPad*)
2971         arch="arm"
2972     ;;
2973     mips*|IP*)
2974         arch="mips"
2975     ;;
2976     parisc*|hppa*)
2977         arch="parisc"
2978     ;;
2979     "Power Macintosh"|ppc*|powerpc*)
2980         arch="ppc"
2981     ;;
2982     s390|s390x)
2983         arch="s390"
2984     ;;
2985     sh4|sh)
2986         arch="sh4"
2987     ;;
2988     sun4u|sparc*)
2989         arch="sparc"
2990     ;;
2991     tilegx|tile-gx)
2992         arch="tilegx"
2993     ;;
2994     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2995         arch="x86"
2996     ;;
2997 esac
2998
2999 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3000 enable $arch
3001
3002 # Add processor-specific flags
3003 if enabled aarch64; then
3004
3005     case $cpu in
3006         armv*)
3007             cpuflags="-march=$cpu"
3008         ;;
3009         *)
3010             cpuflags="-mcpu=$cpu"
3011         ;;
3012     esac
3013
3014 elif enabled alpha; then
3015
3016     cpuflags="-mcpu=$cpu"
3017
3018 elif enabled arm; then
3019
3020     check_arm_arch() {
3021         check_cpp_condition stddef.h \
3022             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3023             $cpuflags
3024     }
3025
3026     probe_arm_arch() {
3027         if   check_arm_arch 4;        then echo armv4;
3028         elif check_arm_arch 4T;       then echo armv4t;
3029         elif check_arm_arch 5;        then echo armv5;
3030         elif check_arm_arch 5E;       then echo armv5e;
3031         elif check_arm_arch 5T;       then echo armv5t;
3032         elif check_arm_arch 5TE;      then echo armv5te;
3033         elif check_arm_arch 5TEJ;     then echo armv5te;
3034         elif check_arm_arch 6;        then echo armv6;
3035         elif check_arm_arch 6J;       then echo armv6j;
3036         elif check_arm_arch 6K;       then echo armv6k;
3037         elif check_arm_arch 6Z;       then echo armv6z;
3038         elif check_arm_arch 6ZK;      then echo armv6zk;
3039         elif check_arm_arch 6T2;      then echo armv6t2;
3040         elif check_arm_arch 7;        then echo armv7;
3041         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3042         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3043         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3044         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3045         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3046         fi
3047     }
3048
3049     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3050
3051     case $cpu in
3052         armv*)
3053             cpuflags="-march=$cpu"
3054             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3055         ;;
3056         *)
3057             cpuflags="-mcpu=$cpu"
3058             case $cpu in
3059                 cortex-a*)                               subarch=armv7a  ;;
3060                 cortex-r*)                               subarch=armv7r  ;;
3061                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3062                 arm11*)                                  subarch=armv6   ;;
3063                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3064                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3065                 *)                             subarch=$(probe_arm_arch) ;;
3066             esac
3067         ;;
3068     esac
3069
3070     case "$subarch" in
3071         armv5t*)    enable fast_clz                ;;
3072         armv[6-8]*) enable fast_clz fast_unaligned ;;
3073     esac
3074
3075 elif enabled avr32; then
3076
3077     case $cpu in
3078         ap7[02]0[0-2])
3079             subarch="avr32_ap"
3080             cpuflags="-mpart=$cpu"
3081         ;;
3082         ap)
3083             subarch="avr32_ap"
3084             cpuflags="-march=$cpu"
3085         ;;
3086         uc3[ab]*)
3087             subarch="avr32_uc"
3088             cpuflags="-mcpu=$cpu"
3089         ;;
3090         uc)
3091             subarch="avr32_uc"
3092             cpuflags="-march=$cpu"
3093         ;;
3094     esac
3095
3096 elif enabled bfin; then
3097
3098     cpuflags="-mcpu=$cpu"
3099
3100 elif enabled mips; then
3101
3102     cpuflags="-march=$cpu"
3103
3104     case $cpu in
3105         24kc)
3106             disable mipsfpu
3107             disable mipsdspr1
3108             disable mipsdspr2
3109         ;;
3110         24kf*)
3111             disable mipsdspr1
3112             disable mipsdspr2
3113         ;;
3114         24kec|34kc|1004kc)
3115             disable mipsfpu
3116             disable mipsdspr2
3117         ;;
3118         24kef*|34kf*|1004kf*)
3119             disable mipsdspr2
3120         ;;
3121         74kc)
3122             disable mipsfpu
3123         ;;
3124     esac
3125
3126 elif enabled ppc; then
3127
3128     case $(tolower $cpu) in
3129         601|ppc601|powerpc601)
3130             cpuflags="-mcpu=601"
3131             disable altivec
3132         ;;
3133         603*|ppc603*|powerpc603*)
3134             cpuflags="-mcpu=603"
3135             disable altivec
3136         ;;
3137         604*|ppc604*|powerpc604*)
3138             cpuflags="-mcpu=604"
3139             disable altivec
3140         ;;
3141         g3|75*|ppc75*|powerpc75*)
3142             cpuflags="-mcpu=750"
3143             disable altivec
3144         ;;
3145         g4|745*|ppc745*|powerpc745*)
3146             cpuflags="-mcpu=7450"
3147         ;;
3148         74*|ppc74*|powerpc74*)
3149             cpuflags="-mcpu=7400"
3150         ;;
3151         g5|970|ppc970|powerpc970)
3152             cpuflags="-mcpu=970"
3153         ;;
3154         power[3-7]*)
3155             cpuflags="-mcpu=$cpu"
3156         ;;
3157         cell)
3158             cpuflags="-mcpu=cell"
3159             enable ldbrx
3160         ;;
3161         e500mc)
3162             cpuflags="-mcpu=e500mc"
3163             disable altivec
3164         ;;
3165         e500v2)
3166             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3167             disable altivec
3168         ;;
3169         e500)
3170             cpuflags="-mcpu=8540 -mhard-float"
3171             disable altivec
3172         ;;
3173     esac
3174
3175 elif enabled sparc; then
3176
3177     case $cpu in
3178         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3179             cpuflags="-mcpu=$cpu"
3180             disable vis
3181         ;;
3182         ultrasparc*|niagara[234])
3183             cpuflags="-mcpu=$cpu"
3184         ;;
3185     esac
3186
3187 elif enabled x86; then
3188
3189     case $cpu in
3190         i[345]86|pentium)
3191             cpuflags="-march=$cpu"
3192             disable mmx
3193         ;;
3194         # targets that do NOT support conditional mov (cmov)
3195         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3196             cpuflags="-march=$cpu"
3197             disable cmov
3198         ;;
3199         # targets that do support conditional mov (cmov)
3200         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3201             cpuflags="-march=$cpu"
3202             enable cmov
3203             enable fast_cmov
3204         ;;
3205         # targets that do support conditional mov but on which it's slow
3206         pentium4|pentium4m|prescott|nocona)
3207             cpuflags="-march=$cpu"
3208             enable cmov
3209             disable fast_cmov
3210         ;;
3211     esac
3212
3213 fi
3214
3215 if [ "$cpu" != generic ]; then
3216     add_cflags  $cpuflags
3217     add_asflags $cpuflags
3218 fi
3219
3220 # compiler sanity check
3221 check_exec <<EOF
3222 int main(void){ return 0; }
3223 EOF
3224 if test "$?" != 0; then
3225     echo "$cc is unable to create an executable file."
3226     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3227         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3228         echo "Only do this if you know what cross compiling means."
3229     fi
3230     die "C compiler test failed."
3231 fi
3232
3233 add_cppflags -D_ISOC99_SOURCE
3234 add_cxxflags -D__STDC_CONSTANT_MACROS
3235 check_cflags -std=c99
3236 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3237 #include <stdlib.h>
3238 EOF
3239 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3240 #include <stdlib.h>
3241 EOF
3242
3243 check_host_cflags -std=c99
3244 check_host_cflags -Wall
3245
3246 check_64bit(){
3247     arch32=$1
3248     arch64=$2
3249     expr=$3
3250     check_code cc "" "int test[2*($expr) - 1]" &&
3251         subarch=$arch64 || subarch=$arch32
3252 }
3253
3254 case "$arch" in
3255     aarch64|alpha|ia64)
3256         spic=$shared
3257     ;;
3258     mips)
3259         check_64bit mips mips64 '_MIPS_SIM > 1'
3260         spic=$shared
3261     ;;
3262     parisc)
3263         check_64bit parisc parisc64 'sizeof(void *) > 4'
3264         spic=$shared
3265     ;;
3266     ppc)
3267         check_64bit ppc ppc64 'sizeof(void *) > 4'
3268         spic=$shared
3269     ;;
3270     sparc)
3271         check_64bit sparc sparc64 'sizeof(void *) > 4'
3272         spic=$shared
3273     ;;
3274     x86)
3275         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3276         if test "$subarch" = "x86_64"; then
3277             spic=$shared
3278         fi
3279     ;;
3280     ppc)
3281         check_cc <<EOF && subarch="ppc64"
3282         int test[(int)sizeof(char*) - 7];
3283 EOF
3284     ;;
3285 esac
3286
3287 enable $subarch
3288 enabled spic && enable pic
3289
3290 # OS specific
3291 case $target_os in
3292     haiku)
3293         prefix_default="/boot/common"
3294         network_extralibs="-lnetwork"
3295         host_libs=
3296         ;;
3297     sunos)
3298         FFSERVERLDFLAGS=""
3299         SHFLAGS='-shared -Wl,-h,$$(@F)'
3300         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3301         network_extralibs="-lsocket -lnsl"
3302         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3303         # When using suncc to build, the Solaris linker will mark
3304         # an executable with each instruction set encountered by
3305         # the Solaris assembler.  As our libraries contain their own
3306         # guards for processor-specific code, instead suppress
3307         # generation of the HWCAPS ELF section on Solaris x86 only.
3308         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3309         nm_default='nm -P -g'
3310         ;;
3311     netbsd)
3312         disable symver
3313         oss_indev_extralibs="-lossaudio"
3314         oss_outdev_extralibs="-lossaudio"
3315         enabled gcc || check_ldflags -Wl,-zmuldefs
3316         ;;
3317     openbsd|bitrig)
3318         disable symver
3319         SHFLAGS='-shared'
3320         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3321         SLIB_INSTALL_LINKS=
3322         oss_indev_extralibs="-lossaudio"
3323         oss_outdev_extralibs="-lossaudio"
3324         ;;
3325     dragonfly)
3326         disable symver
3327         ;;
3328     freebsd)
3329         ;;
3330     bsd/os)
3331         add_extralibs -lpoll -lgnugetopt
3332         strip="strip -d"
3333         ;;
3334     darwin)
3335         gas="gas-preprocessor.pl $cc"
3336         enabled ppc && add_asflags -force_cpusubtype_ALL
3337         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3338         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3339         strip="${strip} -x"
3340         add_ldflags -Wl,-dynamic,-search_paths_first
3341         SLIBSUF=".dylib"
3342         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3343         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3344         FFSERVERLDFLAGS=-Wl,-bind_at_load
3345         objformat="macho"
3346         enabled x86_64 && objformat="macho64"
3347         enabled_any pic shared ||
3348             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3349         ;;
3350     mingw32*)
3351         if test $target_os = "mingw32ce"; then
3352             disable network
3353         else
3354             target_os=mingw32
3355         fi
3356         LIBTARGET=i386
3357         if enabled x86_64; then
3358             LIBTARGET="i386:x86-64"
3359         elif enabled arm; then
3360             LIBTARGET=arm-wince
3361         fi
3362         shlibdir_default="$bindir_default"
3363         SLIBPREF=""
3364         SLIBSUF=".dll"
3365         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3366         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3367         dlltool="${cross_prefix}dlltool"
3368         if check_cmd lib.exe -list; then
3369             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3370             if enabled x86_64; then
3371                 LIBTARGET=x64
3372             fi
3373         elif check_cmd $dlltool --version; then
3374             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3375         fi
3376         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3377         SLIB_INSTALL_LINKS=
3378         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3379         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3380         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3381         objformat="win32"
3382         ranlib=:
3383         enable dos_paths
3384         ;;
3385     win32|win64)
3386         if enabled shared; then
3387             # Link to the import library instead of the normal static library
3388             # for shared libs.
3389             LD_LIB='%.lib'
3390             # Cannot build shared and static libraries at the same time with
3391             # MSVC.
3392             disable static
3393         fi
3394         shlibdir_default="$bindir_default"
3395         SLIBPREF=""
3396         SLIBSUF=".dll"
3397         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3398         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3399         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3400         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3401         SLIB_INSTALL_LINKS=
3402         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3403         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3404         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3405         objformat="win32"
3406         ranlib=:
3407         enable dos_paths
3408         ;;
3409     cygwin*)
3410         target_os=cygwin
3411         shlibdir_default="$bindir_default"
3412         SLIBPREF="cyg"
3413         SLIBSUF=".dll"
3414         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3415         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3416         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3417         SLIB_INSTALL_LINKS=
3418         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3419         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3420         objformat="win32"
3421         enable dos_paths
3422         ;;
3423     *-dos|freedos|opendos)
3424         network_extralibs="-lsocket"
3425         objformat="coff"
3426         enable dos_paths
3427         add_cppflags -U__STRICT_ANSI__
3428         ;;
3429     linux)
3430         enable dv1394
3431         ;;
3432     irix*)
3433         target_os=irix
3434         ranlib="echo ignoring ranlib"
3435         ;;
3436     os/2*)
3437         strip="lxlite -CS"
3438         ln_s="cp -f"
3439         objformat="aout"
3440         add_cppflags -D_GNU_SOURCE
3441         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3442         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3443         FFSERVERLDFLAGS=""
3444         LIBSUF="_s.a"
3445         SLIBPREF=""
3446         SLIBSUF=".dll"
3447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3449         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3450             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3451             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3452             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3453             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3454             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3455         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3456             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3457         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3458         enable dos_paths
3459         enable_weak os2threads
3460         ;;
3461     gnu/kfreebsd)
3462         add_cppflags -D_BSD_SOURCE
3463         ;;
3464     gnu)
3465         ;;
3466     qnx)
3467         add_cppflags -D_QNX_SOURCE
3468         network_extralibs="-lsocket"
3469         ;;
3470     symbian)
3471         SLIBSUF=".dll"
3472         enable dos_paths
3473         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3474         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3475         add_ldflags -Wl,--target1-abs,--no-undefined \
3476                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3477                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3478         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3479                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3480                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3481         ;;
3482     osf1)
3483         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3484         FFSERVERLDFLAGS=
3485         ;;
3486     minix)
3487         ;;
3488     plan9)
3489         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3490                      -D_REENTRANT_SOURCE        \
3491                      -D_RESEARCH_SOURCE         \
3492                      -DFD_SETSIZE=96            \
3493                      -DHAVE_SOCK_OPTS
3494         add_compat strtod.o strtod=avpriv_strtod
3495         network_extralibs='-lbsd'
3496         exeobjs=compat/plan9/main.o
3497         disable ffserver
3498         cp_f='cp'
3499         ;;
3500     none)
3501         ;;
3502     *)
3503         die "Unknown OS '$target_os'."
3504         ;;
3505 esac
3506
3507 # determine libc flavour
3508
3509 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3510 if check_cpp_condition features.h "defined __UCLIBC__"; then
3511     libc_type=uclibc
3512     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3513 elif check_cpp_condition features.h "defined __GLIBC__"; then
3514     libc_type=glibc
3515     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3516 # MinGW headers can be installed on Cygwin, so check for newlib first.
3517 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3518     libc_type=newlib
3519     add_cppflags -U__STRICT_ANSI__
3520 elif check_header _mingw.h; then
3521     libc_type=mingw
3522     check_cpp_condition _mingw.h \
3523         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3524             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3525         die "ERROR: MinGW runtime version must be >= 3.15."
3526     add_cppflags -U__STRICT_ANSI__
3527     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3528             __MINGW64_VERSION_MAJOR < 3"; then
3529         add_compat msvcrt/snprintf.o
3530         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3531     fi
3532 elif check_func_headers stdlib.h _get_doserrno; then
3533     libc_type=msvcrt
3534     add_compat strtod.o strtod=avpriv_strtod
3535     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3536                                  _snprintf=avpriv_snprintf  \
3537                                  vsnprintf=avpriv_vsnprintf
3538 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3539     libc_type=klibc
3540 fi
3541
3542 test -n "$libc_type" && enable $libc_type
3543
3544 # hacks for compiler/libc/os combinations
3545
3546 if enabled_all tms470 glibc; then
3547     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3548     add_cppflags -D__USER_LABEL_PREFIX__=
3549     add_cppflags -D__builtin_memset=memset
3550     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3551     add_cflags   -pds=48    # incompatible redefinition of macro
3552 fi
3553
3554 if enabled_all ccc glibc; then
3555     add_ldflags -Wl,-z,now  # calls to libots crash without this
3556 fi
3557
3558 esc(){
3559     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3560 }
3561
3562 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3563
3564 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3565
3566 set_default $PATHS_LIST
3567 set_default nm
3568
3569 # we need to build at least one lib type
3570 if ! enabled_any static shared; then
3571     cat <<EOF
3572 At least one library type must be built.
3573 Specify --enable-static to build the static libraries or --enable-shared to
3574 build the shared libraries as well. To only build the shared libraries specify
3575 --disable-static in addition to --enable-shared.
3576 EOF
3577     exit 1;
3578 fi
3579
3580 die_license_disabled() {
3581     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3582 }
3583
3584 die_license_disabled_gpl() {
3585     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3586 }
3587
3588 die_license_disabled gpl libcdio
3589 die_license_disabled gpl libutvideo
3590 die_license_disabled gpl libvidstab
3591 die_license_disabled gpl libx264
3592 die_license_disabled gpl libxavs
3593 die_license_disabled gpl libxvid
3594 die_license_disabled gpl x11grab
3595
3596 die_license_disabled nonfree libaacplus
3597 die_license_disabled nonfree libfaac
3598 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3599 enabled gpl && die_license_disabled_gpl nonfree openssl
3600
3601 die_license_disabled version3 libopencore_amrnb
3602 die_license_disabled version3 libopencore_amrwb
3603 die_license_disabled version3 libvo_aacenc
3604 die_license_disabled version3 libvo_amrwbenc
3605
3606 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3607
3608 disabled optimizations || check_cflags -fomit-frame-pointer
3609
3610 enable_pic() {
3611     enable pic
3612     add_cppflags -DPIC
3613     add_cflags   -fPIC
3614     add_asflags  -fPIC
3615 }
3616
3617 enabled pic && enable_pic
3618
3619 check_cc <<EOF || die "Symbol mangling check failed."
3620 int ff_extern;
3621 EOF
3622 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3623 extern_prefix=${sym%%ff_extern*}
3624
3625 check_cc <<EOF && enable_weak inline_asm
3626 void foo(void) { __asm__ volatile ("" ::); }
3627 EOF
3628
3629 _restrict=
3630 for restrict_keyword in restrict __restrict__ __restrict; do
3631     check_cc <<EOF && _restrict=$restrict_keyword && break
3632 void foo(char * $restrict_keyword p);
3633 EOF
3634 done
3635
3636 check_cc <<EOF && enable attribute_packed
3637 struct { int x; } __attribute__((packed)) x;
3638 EOF
3639
3640 check_cc <<EOF && enable attribute_may_alias
3641 union { int x; } __attribute__((may_alias)) x;
3642 EOF
3643
3644 check_cc <<EOF || die "endian test failed"
3645 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3646 EOF
3647 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3648
3649 if enabled alpha; then
3650
3651     check_cflags -mieee
3652
3653 elif enabled arm; then
3654
3655     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3656 float func(float a, float b){ return a+b; }
3657 EOF
3658
3659     enabled thumb && check_cflags -mthumb || check_cflags -marm
3660     nogas=die
3661
3662     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3663         enable vfp_args
3664     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3665         case "${cross_prefix:-$cc}" in
3666             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3667             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3668 __asm__ (".eabi_attribute 28, 1");
3669 int main(void) { return 0; }
3670 EOF
3671         esac
3672         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3673     fi
3674
3675     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3676     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3677     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3678     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3679     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3680     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3681
3682     [ $target_os = linux ] ||
3683         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3684             $ARCH_EXT_LIST_ARM
3685
3686     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3687     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3688
3689     enabled_all armv6t2 shared !pic && enable_pic
3690
3691 elif enabled mips; then
3692
3693     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3694     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3695      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3696     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3697      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3698     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3699      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3700     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3701      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3702
3703 elif enabled parisc; then
3704
3705     if enabled gcc; then
3706         case $($cc -dumpversion) in
3707             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3708         esac
3709     fi
3710
3711 elif enabled ppc; then
3712
3713     enable local_aligned_8 local_aligned_16
3714
3715     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3716     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3717     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3718     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3719
3720     # AltiVec flags: The FSF version of GCC differs from the Apple version
3721     if enabled altivec; then
3722         nogas=warn
3723         check_cflags -maltivec -mabi=altivec &&
3724         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3725         check_cflags -faltivec
3726
3727         # check if our compiler supports Motorola AltiVec C API
3728         check_cc <<EOF || disable altivec
3729 $inc_altivec_h
3730 int main(void) {
3731     vector signed int v1 = (vector signed int) { 0 };
3732     vector signed int v2 = (vector signed int) { 1 };
3733     v1 = vec_add(v1, v2);
3734     return 0;
3735 }
3736 EOF
3737
3738         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3739     fi
3740
3741 elif enabled sparc; then
3742
3743     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3744
3745 elif enabled x86; then
3746
3747     check_builtin rdtsc    intrin.h   "__rdtsc()"
3748     check_builtin mm_empty mmintrin.h "_mm_empty()"
3749
3750     enable local_aligned_8 local_aligned_16
3751
3752     # check whether EBP is available on x86
3753     # As 'i' is stored on the stack, this program will crash
3754     # if the base pointer is used to access it because the
3755     # base pointer is cleared in the inline assembly code.
3756     check_exec_crash <<EOF && enable ebp_available
3757 volatile int i=0;
3758 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3759 return i;
3760 EOF
3761
3762     # check whether EBX is available on x86
3763     check_inline_asm ebx_available '""::"b"(0)' &&
3764         check_inline_asm ebx_available '"":::"%ebx"'
3765
3766     # check whether xmm clobbers are supported
3767     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3768
3769     # check whether binutils is new enough to compile SSSE3/MMXEXT
3770     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3771     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3772
3773     if ! disabled_any asm mmx yasm; then
3774         if check_cmd $yasmexe --version; then
3775             enabled x86_64 && yasm_extra="-m amd64"
3776             yasm_debug="-g dwarf2"
3777         elif check_cmd nasm -v; then
3778             yasmexe=nasm
3779             yasm_debug="-g -F dwarf"
3780             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3781         fi
3782
3783         YASMFLAGS="-f $objformat $yasm_extra"
3784         enabled pic               && append YASMFLAGS "-DPIC"
3785         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3786         case "$objformat" in
3787             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3788         esac
3789
3790         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3791             die "yasm not found, use --disable-yasm for a crippled build"
3792         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3793         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3794         check_yasm "CPU amdnop" && enable cpunop
3795     fi
3796
3797     case "$cpu" in
3798         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3799             disable fast_clz
3800         ;;
3801     esac
3802
3803 fi
3804
3805 if enabled asm; then
3806     as=${gas:=$as}
3807     check_as <<EOF && enable gnu_as || \
3808         $nogas "GNU assembler not found, install gas-preprocessor"
3809 .macro m n
3810 \n: .int 0
3811 .endm
3812 m x
3813 EOF
3814 fi
3815
3816 check_ldflags -Wl,--as-needed
3817
3818 if check_func dlopen; then
3819     ldl=
3820 elif check_func dlopen -ldl; then
3821     ldl=-ldl
3822 fi
3823
3824 if ! disabled network; then
3825     check_type "sys/types.h sys/socket.h" socklen_t
3826     check_type netdb.h "struct addrinfo"
3827     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3828     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3829     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3830     check_type netinet/in.h "struct sockaddr_in6"
3831     check_type poll.h "struct pollfd"
3832     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3833     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3834     check_type netinet/sctp.h "struct sctp_event_subscribe"
3835     check_func getaddrinfo $network_extralibs
3836     check_func getservbyport $network_extralibs
3837     # Prefer arpa/inet.h over winsock2
3838     if check_header arpa/inet.h ; then
3839         check_func closesocket
3840     elif check_header winsock2.h ; then
3841         check_func_headers winsock2.h closesocket -lws2 &&
3842             network_extralibs="-lws2" ||
3843         { check_func_headers winsock2.h closesocket -lws2_32 &&
3844             network_extralibs="-lws2_32"; }
3845         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3846         check_type ws2tcpip.h socklen_t
3847         check_type ws2tcpip.h "struct addrinfo"
3848         check_type ws2tcpip.h "struct group_source_req"
3849         check_type ws2tcpip.h "struct ip_mreq_source"
3850         check_type ws2tcpip.h "struct ipv6_mreq"
3851         check_type winsock2.h "struct pollfd"
3852         check_type ws2tcpip.h "struct sockaddr_in6"
3853         check_type ws2tcpip.h "struct sockaddr_storage"
3854         check_struct winsock2.h "struct sockaddr" sa_len
3855     else
3856         disable network
3857     fi
3858 fi
3859
3860 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3861 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3862
3863 check_func  access
3864 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3865 check_func  fcntl
3866 check_func  fork
3867 check_func  gethrtime
3868 check_func  getopt
3869 check_func  getrusage
3870 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3871 check_func  gettimeofday
3872 check_func  inet_aton $network_extralibs
3873 check_func  isatty
3874 check_func  localtime_r
3875 check_func  ${malloc_prefix}memalign            && enable memalign
3876 check_func  mkstemp
3877 check_func  mmap
3878 check_func  mprotect
3879 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3880 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3881 check_func  setrlimit
3882 check_func  strerror_r
3883 check_func  sched_getaffinity
3884 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3885 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3886 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3887 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3888 check_func  sysconf
3889 check_func  sysctl
3890 check_func  usleep
3891 check_func_headers conio.h kbhit
3892 check_func_headers windows.h PeekNamedPipe
3893 check_func_headers io.h setmode
3894 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3895 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3896 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3897 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3898 check_func_headers windows.h GetProcessAffinityMask
3899 check_func_headers windows.h GetProcessTimes
3900 check_func_headers windows.h GetSystemTimeAsFileTime
3901 check_func_headers windows.h MapViewOfFile
3902 check_func_headers windows.h SetConsoleTextAttribute
3903 check_func_headers windows.h Sleep
3904 check_func_headers windows.h VirtualAlloc
3905 check_func_headers glob.h glob
3906
3907 check_header cl/cl.h
3908 check_header direct.h
3909 check_header dlfcn.h
3910 check_header dxva.h
3911 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3912 check_header io.h
3913 check_header libcrystalhd/libcrystalhd_if.h
3914 check_header malloc.h
3915 check_header poll.h
3916 check_header sys/mman.h
3917 check_header sys/param.h
3918 check_header sys/resource.h
3919 check_header sys/select.h
3920 check_header sys/time.h
3921 check_header termios.h
3922 check_header unistd.h
3923 check_header vdpau/vdpau.h
3924 check_header vdpau/vdpau_x11.h
3925 check_header VideoDecodeAcceleration/VDADecoder.h
3926 check_header windows.h
3927 check_header X11/extensions/XvMClib.h
3928 check_header asm/types.h
3929
3930 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3931 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3932
3933 if ! disabled w32threads && ! enabled pthreads; then
3934     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3935 fi
3936
3937 # check for some common methods of building with pthread support
3938 # do this before the optional library checks as some of them require pthreads
3939 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3940     enable pthreads
3941     if check_func pthread_create; then
3942         :
3943     elif check_func pthread_create -pthread; then
3944         add_cflags -pthread
3945         add_extralibs -pthread
3946     elif check_func pthread_create -pthreads; then
3947         add_cflags -pthreads
3948         add_extralibs -pthreads
3949     elif check_func pthread_create -lpthreadGC2; then
3950         add_extralibs -lpthreadGC2
3951     elif ! check_lib pthread.h pthread_create -lpthread; then
3952         disable pthreads
3953     fi
3954 fi
3955
3956 for thread in $THREADS_LIST; do
3957     if enabled $thread; then
3958         test -n "$thread_type" &&
3959             die "ERROR: Only one thread type must be selected." ||
3960             thread_type="$thread"
3961     fi
3962 done
3963
3964 if enabled pthreads; then
3965   check_func pthread_cancel
3966 fi
3967
3968 enabled sync_val_compare_and_swap && enable atomics_gcc
3969 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3970 enabled MemoryBarrier && enable atomics_win32
3971
3972 check_lib math.h sin -lm && LIBM="-lm"
3973 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3974 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3975
3976 atan2f_args=2
3977 ldexpf_args=2
3978 powf_args=2
3979
3980 for func in $MATH_FUNCS; do
3981     eval check_mathfunc $func \${${func}_args:-1}
3982 done
3983
3984 # these are off by default, so fail if requested and not available
3985 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3986                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3987                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3988 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3989 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3990 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3991 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3992 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3993 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3994 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3995 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3996                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3997                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3998 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3999 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4000 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4001 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4002 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4003 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4004 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4005                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4006                         done || die "ERROR: libgsm not found"; }
4007 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4008 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4009 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4010 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4011 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4012 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4013 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4014 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4015                          check_lib openjpeg.h opj_version -lopenjpeg ||
4016                          die "ERROR: libopenjpeg not found"; }
4017 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4018 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4019 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4020 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4021 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4022 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4023 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4024 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4025 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4026     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4027     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4028 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4029 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4030                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4031                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4032 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4033 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4034 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4035 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4036 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4037 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4038 enabled libvpx     && {
4039     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4040                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4041     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4042                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4043     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4044     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4045 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4046                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4047                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4048 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4049 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4050 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4051                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4052                         die "ERROR: openal not found"; } &&
4053                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4054                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4055 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4056                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4057                         die "ERROR: opencl not found"; } &&
4058                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4059                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4060                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4061 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4062                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4063                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4064                         die "ERROR: openssl not found"; }
4065
4066 if enabled gnutls; then
4067     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4068     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4069 fi
4070
4071 # libdc1394 check
4072 if enabled libdc1394; then
4073     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4074         enable libdc1394_2; } ||
4075     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4076         enable libdc1394_1; } ||
4077     die "ERROR: No version of libdc1394 found "
4078 fi
4079
4080 SDL_CONFIG="${cross_prefix}sdl-config"
4081 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4082     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4083     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4084     enable sdl
4085 else
4086   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4087     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4088     sdl_libs=$("${SDL_CONFIG}" --libs)
4089     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4090     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4091     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4092     enable sdl
4093   fi
4094 fi
4095 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4096
4097 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4098 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4099 perl --version > /dev/null 2>&1 && enable perl || disable perl
4100 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4101 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4102
4103 check_header linux/fb.h
4104 check_header linux/videodev.h
4105 check_header linux/videodev2.h
4106 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4107
4108 check_header sys/videoio.h
4109
4110 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4111 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4112 # w32api 3.12 had it defined wrong
4113 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4114
4115 check_type "dshow.h" IBaseFilter
4116
4117 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4118 { check_header dev/bktr/ioctl_meteor.h &&
4119   check_header dev/bktr/ioctl_bt848.h; } ||
4120 { check_header machine/ioctl_meteor.h &&
4121   check_header machine/ioctl_bt848.h; } ||
4122 { check_header dev/video/meteor/ioctl_meteor.h &&
4123   check_header dev/video/bktr/ioctl_bt848.h; } ||
4124 check_header dev/ic/bt8xx.h
4125
4126 check_header sndio.h
4127 if check_struct sys/soundcard.h audio_buf_info bytes; then
4128     enable_safe sys/soundcard.h
4129 else
4130     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4131     #include <sys/soundcard.h>
4132     audio_buf_info abc;
4133 EOF
4134 fi
4135 check_header soundcard.h
4136
4137 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4138
4139 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4140     check_func jack_port_get_latency_range -ljack
4141
4142 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4143
4144 if enabled libcdio; then
4145     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4146 fi
4147
4148 enabled x11grab                                           &&
4149 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4150 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4151 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4152
4153 if ! disabled vaapi; then
4154     check_lib va/va.h vaInitialize -lva && {
4155         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4156         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4157     } || disable vaapi
4158 fi
4159
4160 enabled vdpau &&
4161     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4162     disable vdpau
4163
4164 # Funny iconv installations are not unusual, so check it after all flags have been set
4165 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4166
4167 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4168 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4169
4170 # add some useful compiler flags if supported
4171 check_cflags -Wdeclaration-after-statement
4172 check_cflags -Wall
4173 check_cflags -Wno-parentheses
4174 check_cflags -Wno-switch
4175 check_cflags -Wno-format-zero-length
4176 check_cflags -Wdisabled-optimization
4177 check_cflags -Wpointer-arith
4178 check_cflags -Wredundant-decls
4179 check_cflags -Wno-pointer-sign
4180 check_cflags -Wwrite-strings
4181 check_cflags -Wtype-limits
4182 check_cflags -Wundef
4183 check_cflags -Wmissing-prototypes
4184 check_cflags -Wno-pointer-to-int-cast
4185 check_cflags -Wstrict-prototypes
4186 enabled extra_warnings && check_cflags -Winline
4187
4188 # add some linker flags
4189 check_ldflags -Wl,--warn-common
4190 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4191 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4192
4193 enabled xmm_clobber_test &&
4194     check_ldflags -Wl,--wrap,avcodec_open2              \
4195                   -Wl,--wrap,avcodec_decode_audio4      \
4196                   -Wl,--wrap,avcodec_decode_video2      \
4197                   -Wl,--wrap,avcodec_decode_subtitle2   \
4198                   -Wl,--wrap,avcodec_encode_audio2      \
4199                   -Wl,--wrap,avcodec_encode_video       \
4200                   -Wl,--wrap,avcodec_encode_subtitle    \
4201                   -Wl,--wrap,sws_scale ||
4202     disable xmm_clobber_test
4203
4204 echo "X{};" > $TMPV
4205 if test_ldflags -Wl,--version-script,$TMPV; then
4206     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4207     check_cc <<EOF && enable symver_asm_label
4208 void ff_foo(void) __asm__ ("av_foo@VERSION");
4209 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4210 EOF
4211     check_cc <<EOF && enable symver_gnu_asm
4212 __asm__(".symver ff_foo,av_foo@VERSION");
4213 void ff_foo(void) {}
4214 EOF
4215 fi
4216
4217 if [ -z "$optflags" ]; then
4218     if enabled small; then
4219         optflags=$cflags_size
4220     elif enabled optimizations; then
4221         optflags=$cflags_speed
4222     else
4223         optflags=$cflags_noopt
4224     fi
4225 fi
4226
4227 check_optflags(){
4228     check_cflags "$@"
4229     enabled lto && check_ldflags "$@"
4230 }
4231
4232
4233 if enabled lto; then
4234     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4235     check_cflags  -flto
4236     check_ldflags -flto $cpuflags
4237 fi
4238
4239 check_optflags $optflags
4240 check_optflags -fno-math-errno
4241 check_optflags -fno-signed-zeros
4242
4243 enabled ftrapv && check_cflags -ftrapv
4244
4245 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4246 int x;
4247 EOF
4248
4249
4250 if enabled icc; then
4251     # Just warnings, no remarks
4252     check_cflags -w1
4253     # -wd: Disable following warnings
4254     # 144, 167, 556: -Wno-pointer-sign
4255     # 188: enumerated type mixed with another type
4256     # 1292: attribute "foo" ignored
4257     # 1419: external declaration in primary source file
4258     # 10006: ignoring unknown option -fno-signed-zeros
4259     # 10148: ignoring unknown option -Wno-parentheses
4260     # 10156: ignoring option '-W'; no argument required
4261     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4262     # 11030: Warning unknown option --as-needed
4263     # 10156: ignoring option '-export'; no argument required
4264     check_ldflags -wd10156,11030
4265     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4266     enable ebp_available
4267     if enabled x86_32; then
4268         icc_version=$($cc -dumpversion)
4269         test ${icc_version%%.*} -ge 11 &&
4270             check_cflags -falign-stack=maintain-16-byte ||
4271             disable aligned_stack
4272     fi
4273 elif enabled ccc; then
4274     # disable some annoying warnings
4275     add_cflags -msg_disable bitnotint
4276     add_cflags -msg_disable mixfuncvoid
4277     add_cflags -msg_disable nonstandcast
4278     add_cflags -msg_disable unsupieee
4279 elif enabled gcc; then
4280     check_optflags -fno-tree-vectorize
4281     check_cflags -Werror=implicit-function-declaration
4282     check_cflags -Werror=missing-prototypes
4283     check_cflags -Werror=return-type
4284     check_cflags -Werror=vla
4285 elif enabled llvm_gcc; then
4286     check_cflags -mllvm -stack-alignment=16
4287 elif enabled clang; then
4288     check_cflags -mllvm -stack-alignment=16
4289     check_cflags -Qunused-arguments
4290     check_cflags -Werror=implicit-function-declaration
4291     check_cflags -Werror=missing-prototypes
4292     check_cflags -Werror=return-type
4293 elif enabled armcc; then
4294     # 2523: use of inline assembler is deprecated
4295     add_cflags -W${armcc_opt},--diag_suppress=2523
4296     add_cflags -W${armcc_opt},--diag_suppress=1207
4297     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4298     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4299     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4300     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4301 elif enabled tms470; then
4302     add_cflags -pds=824 -pds=837
4303 elif enabled pathscale; then
4304     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4305 elif enabled msvc; then
4306     enabled x86_32 && disable aligned_stack
4307 fi
4308
4309 case $target_os in
4310     osf1)
4311         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4312     ;;
4313     plan9)
4314         add_cppflags -Dmain=plan9_main
4315     ;;
4316 esac
4317
4318 enable frame_thread_encoder
4319 enabled_any $THREADS_LIST      && enable threads
4320 enabled_any $ATOMICS_LIST      && enable atomics_native
4321
4322 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4323
4324 check_deps $CONFIG_LIST       \
4325            $CONFIG_EXTRA      \
4326            $HAVE_LIST         \
4327            $ALL_COMPONENTS    \
4328
4329
4330 if test $target_os = "haiku"; then
4331     disable memalign
4332     disable posix_memalign
4333 fi
4334
4335 ! enabled_any memalign posix_memalign aligned_malloc &&
4336     enabled_any $need_memalign && enable memalign_hack
4337
4338 # add_dep lib dep
4339 # -> enable ${lib}_deps_${dep}
4340 # -> add $dep to ${lib}_deps only once
4341 add_dep() {
4342     lib=$1
4343     dep=$2
4344     enabled "${lib}_deps_${dep}" && return 0
4345     enable  "${lib}_deps_${dep}"
4346     prepend "${lib}_deps" $dep
4347 }
4348
4349 # merge deps lib components
4350 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4351 merge_deps() {
4352     lib=$1
4353     shift
4354     for comp in $*; do
4355         enabled $comp || continue
4356         eval "dep=\"\$${comp}_deps\""
4357         for d in $dep; do
4358             add_dep $lib $d
4359         done
4360     done
4361 }
4362
4363 merge_deps libavfilter $FILTER_LIST
4364
4365 echo "install prefix            $prefix"
4366 echo "source path               $source_path"
4367 echo "C compiler                $cc"
4368 echo "ARCH                      $arch ($cpu)"
4369 if test "$build_suffix" != ""; then
4370     echo "build suffix              $build_suffix"
4371 fi
4372 if test "$progs_suffix" != ""; then
4373     echo "progs suffix              $progs_suffix"
4374 fi
4375 if test "$extra_version" != ""; then
4376     echo "version string suffix     $extra_version"
4377 fi
4378 echo "big-endian                ${bigendian-no}"
4379 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4380 if enabled x86; then
4381     echo "${yasmexe}                      ${yasm-no}"
4382     echo "MMX enabled               ${mmx-no}"
4383     echo "MMXEXT enabled            ${mmxext-no}"
4384     echo "3DNow! enabled            ${amd3dnow-no}"
4385     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4386     echo "SSE enabled               ${sse-no}"
4387     echo "SSSE3 enabled             ${ssse3-no}"
4388     echo "AVX enabled               ${avx-no}"
4389     echo "FMA4 enabled              ${fma4-no}"
4390     echo "CMOV enabled              ${cmov-no}"
4391     echo "CMOV is fast              ${fast_cmov-no}"
4392     echo "EBX available             ${ebx_available-no}"
4393     echo "EBP available             ${ebp_available-no}"
4394 fi
4395 if enabled arm; then
4396     echo "ARMv5TE enabled           ${armv5te-no}"
4397     echo "ARMv6 enabled             ${armv6-no}"
4398     echo "ARMv6T2 enabled           ${armv6t2-no}"
4399     echo "VFP enabled               ${vfp-no}"
4400     echo "NEON enabled              ${neon-no}"
4401     echo "THUMB enabled             ${thumb-no}"
4402 fi
4403 if enabled mips; then
4404     echo "MIPS FPU enabled          ${mipsfpu-no}"
4405     echo "MIPS32R2 enabled          ${mips32r2-no}"
4406     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4407     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4408 fi
4409 if enabled ppc; then
4410     echo "AltiVec enabled           ${altivec-no}"
4411     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4412     echo "dcbzl available           ${dcbzl-no}"
4413 fi
4414 if enabled sparc; then
4415     echo "VIS enabled               ${vis-no}"
4416 fi
4417 echo "debug symbols             ${debug-no}"
4418 echo "strip symbols             ${stripping-no}"
4419 echo "optimize for size         ${small-no}"
4420 echo "optimizations             ${optimizations-no}"
4421 echo "static                    ${static-no}"
4422 echo "shared                    ${shared-no}"
4423 echo "postprocessing support    ${postproc-no}"
4424 echo "new filter support        ${avfilter-no}"
4425 echo "network support           ${network-no}"
4426 echo "threading support         ${thread_type-no}"
4427 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4428 echo "SDL support               ${sdl-no}"
4429 echo "opencl enabled            ${opencl-no}"
4430 echo "libshine enabled          ${libshine-no}"
4431 echo "texi2html enabled         ${texi2html-no}"
4432 echo "perl enabled              ${perl-no}"
4433 echo "pod2man enabled           ${pod2man-no}"
4434 echo "makeinfo enabled          ${makeinfo-no}"
4435 test -n "$random_seed" &&
4436     echo "random seed               ${random_seed}"
4437 echo
4438
4439 echo "External libraries:"
4440 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4441 echo
4442
4443 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4444     echo "Enabled ${type}s:"
4445     eval list=\$$(toupper $type)_LIST
4446     print_enabled '_*' $list | print_3_columns
4447     echo
4448 done
4449
4450 license="LGPL version 2.1 or later"
4451 if enabled nonfree; then
4452     license="nonfree and unredistributable"
4453 elif enabled gplv3; then
4454     license="GPL version 3 or later"
4455 elif enabled lgplv3; then
4456     license="LGPL version 3 or later"
4457 elif enabled gpl; then
4458     license="GPL version 2 or later"
4459 fi
4460
4461 echo "License: $license"
4462
4463 echo "Creating config.mak, config.h, and doc/config.texi..."
4464
4465 test -e Makefile || $ln_s "$source_path/Makefile" .
4466
4467 enabled stripping || strip="echo skipping strip"
4468
4469 config_files="$TMPH config.mak doc/config.texi"
4470
4471 cat > config.mak <<EOF
4472 # Automatically generated by configure - do not modify!
4473 ifndef FFMPEG_CONFIG_MAK
4474 FFMPEG_CONFIG_MAK=1
4475 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4476 prefix=$prefix
4477 LIBDIR=\$(DESTDIR)$libdir
4478 SHLIBDIR=\$(DESTDIR)$shlibdir
4479 INCDIR=\$(DESTDIR)$incdir
4480 BINDIR=\$(DESTDIR)$bindir
4481 DATADIR=\$(DESTDIR)$datadir
4482 MANDIR=\$(DESTDIR)$mandir
4483 SRC_PATH=$source_path
4484 ifndef MAIN_MAKEFILE
4485 SRC_PATH:=\$(SRC_PATH:.%=..%)
4486 endif
4487 CC_IDENT=$cc_ident
4488 ARCH=$arch
4489 CC=$cc
4490 CXX=$cxx
4491 AS=$as
4492 LD=$ld
4493 DEPCC=$dep_cc
4494 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4495 DEPAS=$as
4496 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4497 YASM=$yasmexe
4498 DEPYASM=$yasmexe
4499 AR=$ar
4500 ARFLAGS=$arflags
4501 AR_O=$ar_o
4502 RANLIB=$ranlib
4503 CP=cp -p
4504 LN_S=$ln_s
4505 STRIP=$strip
4506 CPPFLAGS=$CPPFLAGS
4507 CFLAGS=$CFLAGS
4508 CXXFLAGS=$CXXFLAGS
4509 ASFLAGS=$ASFLAGS
4510 AS_C=$AS_C
4511 AS_O=$AS_O
4512 CC_C=$CC_C
4513 CC_E=$CC_E
4514 CC_O=$CC_O
4515 CXX_C=$CXX_C
4516 CXX_O=$CXX_O
4517 LD_O=$LD_O
4518 LD_LIB=$LD_LIB
4519 LD_PATH=$LD_PATH
4520 DLLTOOL=$dlltool
4521 LDFLAGS=$LDFLAGS
4522 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4523 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4524 YASMFLAGS=$YASMFLAGS
4525 BUILDSUF=$build_suffix
4526 PROGSSUF=$progs_suffix
4527 FULLNAME=$FULLNAME
4528 LIBPREF=$LIBPREF
4529 LIBSUF=$LIBSUF
4530 LIBNAME=$LIBNAME
4531 SLIBPREF=$SLIBPREF
4532 SLIBSUF=$SLIBSUF
4533 EXESUF=$EXESUF
4534 EXTRA_VERSION=$extra_version
4535 CCDEP=$CCDEP
4536 CXXDEP=$CXXDEP
4537 CCDEP_FLAGS=$CCDEP_FLAGS
4538 ASDEP=$ASDEP
4539 ASDEP_FLAGS=$ASDEP_FLAGS
4540 CC_DEPFLAGS=$CC_DEPFLAGS
4541 AS_DEPFLAGS=$AS_DEPFLAGS
4542 HOSTCC=$host_cc
4543 HOSTLD=$host_ld
4544 HOSTCFLAGS=$host_cflags
4545 HOSTCPPFLAGS=$host_cppflags
4546 HOSTEXESUF=$HOSTEXESUF
4547 HOSTLDFLAGS=$host_ldflags
4548 HOSTLIBS=$host_libs
4549 DEPHOSTCC=$host_cc
4550 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4551 HOSTCCDEP=$HOSTCCDEP
4552 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4553 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4554 HOSTCC_C=$HOSTCC_C
4555 HOSTCC_O=$HOSTCC_O
4556 HOSTLD_O=$HOSTLD_O
4557 TARGET_EXEC=$target_exec $target_exec_args
4558 TARGET_PATH=$target_path
4559 LIBS-ffplay=$sdl_libs
4560 CFLAGS-ffplay=$sdl_cflags
4561 ZLIB=$($ldflags_filter -lz)
4562 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4563 EXTRALIBS=$extralibs
4564 COMPAT_OBJS=$compat_objs
4565 EXEOBJS=$exeobjs
4566 INSTALL=$install
4567 LIBTARGET=${LIBTARGET}
4568 SLIBNAME=${SLIBNAME}
4569 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4570 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4571 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4572 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4573 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4574 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4575 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4576 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4577 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4578 NOREDZONE_FLAGS=$noredzone_flags
4579 EOF
4580
4581 get_version(){
4582     lcname=lib${1}
4583     name=$(toupper $lcname)
4584     file=$source_path/$lcname/version.h
4585     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4586     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4587     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4588     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4589     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4590 }
4591
4592 map 'get_version $v' $LIBRARY_LIST
4593
4594 cat > $TMPH <<EOF
4595 /* Automatically generated by configure - do not modify! */
4596 #ifndef FFMPEG_CONFIG_H
4597 #define FFMPEG_CONFIG_H
4598 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4599 #define FFMPEG_LICENSE "$(c_escape $license)"
4600 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4601 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4602 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4603 #define av_restrict $_restrict
4604 #define EXTERN_PREFIX "${extern_prefix}"
4605 #define EXTERN_ASM ${extern_prefix}
4606 #define SLIBSUF "$SLIBSUF"
4607 #define HAVE_MMX2 HAVE_MMXEXT
4608 EOF
4609
4610 test -n "$assert_level" &&
4611     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4612
4613 test -n "$malloc_prefix" &&
4614     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4615
4616 if enabled yasm; then
4617     append config_files $TMPASM
4618     printf '' >$TMPASM
4619 fi
4620
4621 if enabled msvc && ! enabled shared; then
4622     echo '#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_strtod")' >> $TMPH
4623     echo '#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_snprintf")' >> $TMPH
4624 fi
4625
4626 mkdir -p doc
4627 echo "@c auto-generated by configure" > doc/config.texi
4628
4629 print_config ARCH_   "$config_files" $ARCH_LIST
4630 print_config HAVE_   "$config_files" $HAVE_LIST
4631 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4632                                      $CONFIG_EXTRA      \
4633                                      $ALL_COMPONENTS    \
4634
4635 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4636 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4637
4638 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4639 cp_if_changed $TMPH config.h
4640 touch .config
4641
4642 enabled yasm && cp_if_changed $TMPASM config.asm
4643
4644 cat > $TMPH <<EOF
4645 /* Generated by ffconf */
4646 #ifndef AVUTIL_AVCONFIG_H
4647 #define AVUTIL_AVCONFIG_H
4648 EOF
4649
4650 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4651
4652 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4653
4654 cp_if_changed $TMPH libavutil/avconfig.h
4655
4656 if test -n "$WARNINGS"; then
4657     printf "\n$WARNINGS"
4658     enabled fatal_warnings && exit 1
4659 fi
4660
4661 # build pkg-config files
4662
4663 pkgconfig_generate(){
4664     name=$1
4665     shortname=${name#lib}${build_suffix}
4666     comment=$2
4667     version=$3
4668     libs=$4
4669     requires=$5
4670     enabled ${name#lib} || return 0
4671     mkdir -p $name
4672     cat <<EOF > $name/$name${build_suffix}.pc
4673 prefix=$prefix
4674 exec_prefix=\${prefix}
4675 libdir=$libdir
4676 includedir=$incdir
4677
4678 Name: $name
4679 Description: $comment
4680 Version: $version
4681 Requires: $(enabled shared || echo $requires)
4682 Requires.private: $(enabled shared && echo $requires)
4683 Conflicts:
4684 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4685 Libs.private: $(enabled shared && echo $libs)
4686 Cflags: -I\${includedir}
4687 EOF
4688
4689 mkdir -p doc/examples/pc-uninstalled
4690 includedir=${source_path}
4691 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4692     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4693 prefix=
4694 exec_prefix=
4695 libdir=\${pcfiledir}/../../../$name
4696 includedir=${includedir}
4697
4698 Name: $name
4699 Description: $comment
4700 Version: $version
4701 Requires: $requires
4702 Conflicts:
4703 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4704 Cflags: -I\${includedir}
4705 EOF
4706 }
4707
4708 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4709 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4710 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4711 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4712 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4713 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4714 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4715 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4716
4717 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4718 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4719
4720 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4721 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4722 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4723 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4724 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4725 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4726 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4727 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4728 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4729
4730 fix_ffmpeg_remote(){
4731     git_remote_from=$1
4732     git_remote_to=$2
4733     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4734     if [ "$fixme_remote" != "" ]; then
4735         echolog "
4736 Outdated domain in git config, the official domain for ffmpeg git is since
4737 November 2011, source.ffmpeg.org, both the old and the new point to the same
4738 repository and server. To update it enter the following commands:
4739 "
4740         for remote in $fixme_remote; do
4741             echolog "git remote set-url $remote $git_remote_to"
4742         done
4743     fi
4744 }
4745
4746 if test -f "$source_path/.git/config"; then
4747     remote_from=git.videolan.org
4748     remote_to=source.ffmpeg.org
4749     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4750     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4751 fi