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