eddf40b9b19f695a2f9f251ad63e4a9aaa82c029
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --prefix=PREFIX          install in PREFIX [$prefix]
82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
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   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger 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-avconv         disable avconv build
109   --disable-avplay         disable avplay build
110   --disable-avprobe        disable avprobe build
111   --disable-avserver       disable avserver build
112
113 Component options:
114   --disable-doc            do not build documentation
115   --disable-avdevice       disable libavdevice build
116   --disable-avcodec        disable libavcodec build
117   --disable-avformat       disable libavformat build
118   --disable-avutil         disable libavutil build
119   --disable-swscale        disable libswscale build
120   --disable-avfilter       disable video filter support [no]
121   --disable-avresample     disable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-network        disable network support [no]
125   --disable-dct            disable DCT code
126   --disable-error-resilience disable error resilience code
127   --disable-lsp            disable LSP code
128   --disable-lzo            disable LZO decoder code
129   --disable-mdct           disable MDCT code
130   --disable-rdft           disable RDFT code
131   --disable-fft            disable FFT code
132
133 Hardware accelerators:
134   --enable-dxva2           enable DXVA2 code
135   --enable-vaapi           enable VAAPI code
136   --enable-vda             enable VDA code
137   --enable-vdpau           enable VDPAU code
138
139 Individual component options:
140   --disable-everything     disable all components listed below
141   --disable-encoder=NAME   disable encoder NAME
142   --enable-encoder=NAME    enable encoder NAME
143   --disable-encoders       disable all encoders
144   --disable-decoder=NAME   disable decoder NAME
145   --enable-decoder=NAME    enable decoder NAME
146   --disable-decoders       disable all decoders
147   --disable-hwaccel=NAME   disable hwaccel NAME
148   --enable-hwaccel=NAME    enable hwaccel NAME
149   --disable-hwaccels       disable all hwaccels
150   --disable-muxer=NAME     disable muxer NAME
151   --enable-muxer=NAME      enable muxer NAME
152   --disable-muxers         disable all muxers
153   --disable-demuxer=NAME   disable demuxer NAME
154   --enable-demuxer=NAME    enable demuxer NAME
155   --disable-demuxers       disable all demuxers
156   --enable-parser=NAME     enable parser NAME
157   --disable-parser=NAME    disable parser NAME
158   --disable-parsers        disable all parsers
159   --enable-bsf=NAME        enable bitstream filter NAME
160   --disable-bsf=NAME       disable bitstream filter NAME
161   --disable-bsfs           disable all bitstream filters
162   --enable-protocol=NAME   enable protocol NAME
163   --disable-protocol=NAME  disable protocol NAME
164   --disable-protocols      disable all protocols
165   --enable-indev=NAME      enable input device NAME
166   --disable-indev=NAME     disable input device NAME
167   --disable-indevs         disable input devices
168   --enable-outdev=NAME     enable output device NAME
169   --disable-outdev=NAME    disable output device NAME
170   --disable-outdevs        disable output devices
171   --disable-devices        disable all devices
172   --enable-filter=NAME     enable filter NAME
173   --disable-filter=NAME    disable filter NAME
174   --disable-filters        disable all filters
175
176 External library support:
177   --enable-avisynth        enable reading of AviSynth script files [no]
178   --enable-bzlib           enable bzlib [autodetect]
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libcdio         enable audio CD grabbing with libcdio
182   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
183                            and libraw1394 [no]
184   --enable-libfaac         enable AAC encoding via libfaac [no]
185   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
186   --enable-libfreetype     enable libfreetype [no]
187   --enable-libgsm          enable GSM de/encoding via libgsm [no]
188   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
189   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
190   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192   --enable-libopencv       enable video filtering via libopencv [no]
193   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
194   --enable-libopus         enable Opus decoding via libopus [no]
195   --enable-libpulse        enable Pulseaudio input via libpulse [no]
196   --enable-librtmp         enable RTMP[E] support via librtmp [no]
197   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198   --enable-libspeex        enable Speex de/encoding via libspeex [no]
199   --enable-libtheora       enable Theora encoding via libtheora [no]
200   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
201   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
202   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
203   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
204   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
205   --enable-libx264         enable H.264 encoding via x264 [no]
206   --enable-libxavs         enable AVS encoding via xavs [no]
207   --enable-libxvid         enable Xvid encoding via xvidcore,
208                            native MPEG-4/Xvid encoder exists [no]
209   --enable-openssl         enable openssl [no]
210   --enable-x11grab         enable X11 grabbing [no]
211   --enable-zlib            enable zlib [autodetect]
212
213 Advanced options (experts only):
214   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
215   --enable-cross-compile   assume a cross-compiler is used
216   --sysroot=PATH           root of cross-build tree
217   --sysinclude=PATH        location of cross-build system headers
218   --target-os=OS           compiler targets OS [$target_os]
219   --target-exec=CMD        command to run executables on target
220   --target-path=DIR        path to view of build directory on target
221   --target-samples=DIR     path to samples directory on target
222   --toolchain=NAME         set tool defaults according to NAME
223   --nm=NM                  use nm tool
224   --ar=AR                  use archive tool AR [$ar_default]
225   --as=AS                  use assembler AS [$as_default]
226   --cc=CC                  use C compiler CC [$cc_default]
227   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
228   --ld=LD                  use linker LD
229   --host-cc=HOSTCC         use host C compiler HOSTCC
230   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
231   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
232   --host-ld=HOSTLD         use host linker HOSTLD
233   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
234   --host-libs=HLIBS        use libs HLIBS when linking for host
235   --host-os=OS             compiler host OS [$target_os]
236   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
237   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
238   --extra-libs=ELIBS       add ELIBS [$ELIBS]
239   --extra-version=STRING   version string suffix []
240   --optflags=OPTFLAGS      override optimization-related compiler flags
241   --build-suffix=SUFFIX    library name suffix []
242   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
243   --arch=ARCH              select architecture [$arch]
244   --cpu=CPU                select the minimum required CPU (affects
245                            instruction selection, may crash on older CPUs)
246   --enable-pic             build position-independent code
247   --enable-sram            allow use of on-chip SRAM
248   --enable-thumb           compile for Thumb instruction set
249   --disable-symver         disable symbol versioning
250   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251   --disable-safe-bitstream-reader
252                            disable buffer boundary checking in bitreaders
253                            (faster, but may crash)
254   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
255   --enable-lto             use link-time optimization
256
257 Optimization options (experts only):
258   --disable-asm            disable all assembler optimizations
259   --disable-altivec        disable AltiVec optimizations
260   --disable-amd3dnow       disable 3DNow! optimizations
261   --disable-amd3dnowext    disable 3DNow! extended optimizations
262   --disable-mmx            disable MMX optimizations
263   --disable-mmxext         disable MMXEXT optimizations
264   --disable-sse            disable SSE optimizations
265   --disable-sse2           disable SSE2 optimizations
266   --disable-sse3           disable SSE3 optimizations
267   --disable-ssse3          disable SSSE3 optimizations
268   --disable-sse4           disable SSE4 optimizations
269   --disable-sse42          disable SSE4.2 optimizations
270   --disable-avx            disable AVX optimizations
271   --disable-fma4           disable FMA4 optimizations
272   --disable-avx2           disable AVX2 optimizations
273   --disable-armv5te        disable armv5te optimizations
274   --disable-armv6          disable armv6 optimizations
275   --disable-armv6t2        disable armv6t2 optimizations
276   --disable-vfp            disable VFP optimizations
277   --disable-neon           disable NEON optimizations
278   --disable-vis            disable VIS optimizations
279   --disable-inline-asm     disable use of inline assembler
280   --disable-yasm           disable use of yasm assembler
281
282 Developer options (useful when working on Libav itself):
283   --disable-debug          disable debugging symbols
284   --enable-debug=LEVEL     set the debug level [$debuglevel]
285   --disable-optimizations  disable compiler optimizations
286   --enable-extra-warnings  enable more compiler warnings
287   --samples=PATH           location of test samples for FATE, if not set use
288                            \$LIBAV_SAMPLES at make invocation time.
289   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
290                            should be used only for debugging purposes)
291   --enable-random          randomly enable/disable components
292   --disable-random
293   --enable-random=LIST     randomly enable/disable specific components or
294   --disable-random=LIST    component groups. LIST is a comma-separated list
295                            of NAME[:PROB] entries where NAME is a component
296                            (group) and PROB the probability associated with
297                            NAME (default 0.5).
298   --random-seed=VALUE      seed value for --enable/disable-random
299
300 NOTE: Object files are built at the place where configure is launched.
301 EOF
302   exit 0
303 }
304
305 quotes='""'
306
307 log(){
308     echo "$@" >> $logfile
309 }
310
311 log_file(){
312     log BEGIN $1
313     pr -n -t $1 >> $logfile
314     log END $1
315 }
316
317 echolog(){
318     log "$@"
319     echo "$@"
320 }
321
322 warn(){
323     log "WARNING: $*"
324     WARNINGS="${WARNINGS}WARNING: $*\n"
325 }
326
327 die(){
328     echolog "$@"
329     cat <<EOF
330
331 If you think configure made a mistake, make sure you are using the latest
332 version from Git.  If the latest version fails, report the problem to the
333 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
334 EOF
335     if disabled logging; then
336         cat <<EOF
337 Rerun configure with logging enabled (do not use --disable-logging), and
338 include the log this produces with your report.
339 EOF
340     else
341         cat <<EOF
342 Include the log file "$logfile" produced by configure as this will help
343 solving the problem.
344 EOF
345     fi
346     exit 1
347 }
348
349 # Avoid locale weirdness, besides we really just want to translate ASCII.
350 toupper(){
351     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
352 }
353
354 tolower(){
355     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
356 }
357
358 c_escape(){
359     echo "$*" | sed 's/["\\]/\\\0/g'
360 }
361
362 sh_quote(){
363     v=$(echo "$1" | sed "s/'/'\\\\''/g")
364     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
365     echo "$v"
366 }
367
368 cleanws(){
369     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
370 }
371
372 filter(){
373     pat=$1
374     shift
375     for v; do
376         eval "case $v in $pat) echo $v ;; esac"
377     done
378 }
379
380 filter_out(){
381     pat=$1
382     shift
383     for v; do
384         eval "case $v in $pat) ;; *) echo $v ;; esac"
385     done
386 }
387
388 map(){
389     m=$1
390     shift
391     for v; do eval $m; done
392 }
393
394 add_suffix(){
395     suffix=$1
396     shift
397     for v; do echo ${v}${suffix}; done
398 }
399
400 set_all(){
401     value=$1
402     shift
403     for var in $*; do
404         eval $var=$value
405     done
406 }
407
408 set_weak(){
409     value=$1
410     shift
411     for var; do
412         eval : \${$var:=$value}
413     done
414 }
415
416 sanitize_var_name(){
417     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
418 }
419
420 set_safe(){
421     var=$1
422     shift
423     eval $(sanitize_var_name "$var")='$*'
424 }
425
426 get_safe(){
427     eval echo \$$(sanitize_var_name "$1")
428 }
429
430 pushvar(){
431     for pvar in $*; do
432         eval level=\${${pvar}_level:=0}
433         eval ${pvar}_${level}="\$$pvar"
434         eval ${pvar}_level=$(($level+1))
435     done
436 }
437
438 popvar(){
439     for pvar in $*; do
440         eval level=\${${pvar}_level:-0}
441         test $level = 0 && continue
442         eval level=$(($level-1))
443         eval $pvar="\${${pvar}_${level}}"
444         eval ${pvar}_level=$level
445         eval unset ${pvar}_${level}
446     done
447 }
448
449 enable(){
450     set_all yes $*
451 }
452
453 disable(){
454     set_all no $*
455 }
456
457 enable_weak(){
458     set_weak yes $*
459 }
460
461 disable_weak(){
462     set_weak no $*
463 }
464
465 enable_safe(){
466     for var; do
467         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
468     done
469 }
470
471 disable_safe(){
472     for var; do
473         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474     done
475 }
476
477 do_enable_deep(){
478     for var; do
479         enabled $var && continue
480         eval sel="\$${var}_select"
481         eval sgs="\$${var}_suggest"
482         pushvar var sgs
483         enable_deep $sel
484         popvar sgs
485         enable_deep_weak $sgs
486         popvar var
487     done
488 }
489
490 enable_deep(){
491     do_enable_deep $*
492     enable $*
493 }
494
495 enable_deep_weak(){
496     for var; do
497         disabled $var && continue
498         pushvar var
499         do_enable_deep $var
500         popvar var
501         enable_weak $var
502     done
503 }
504
505 enabled(){
506     test "${1#!}" = "$1" && op== || op=!=
507     eval test "x\$${1#!}" $op "xyes"
508 }
509
510 disabled(){
511     test "${1#!}" = "$1" && op== || op=!=
512     eval test "x\$${1#!}" $op "xno"
513 }
514
515 enabled_all(){
516     for opt; do
517         enabled $opt || return 1
518     done
519 }
520
521 disabled_all(){
522     for opt; do
523         disabled $opt || return 1
524     done
525 }
526
527 enabled_any(){
528     for opt; do
529         enabled $opt && return 0
530     done
531 }
532
533 disabled_any(){
534     for opt; do
535         disabled $opt && return 0
536     done
537     return 1
538 }
539
540 set_default(){
541     for opt; do
542         eval : \${$opt:=\$${opt}_default}
543     done
544 }
545
546 is_in(){
547     value=$1
548     shift
549     for var in $*; do
550         [ $var = $value ] && return 0
551     done
552     return 1
553 }
554
555 do_check_deps(){
556     for cfg; do
557         cfg="${cfg#!}"
558         enabled ${cfg}_checking && die "Circular dependency for $cfg."
559         disabled ${cfg}_checking && continue
560         enable ${cfg}_checking
561         append allopts $cfg
562
563         eval dep_all="\$${cfg}_deps"
564         eval dep_any="\$${cfg}_deps_any"
565         eval dep_sel="\$${cfg}_select"
566         eval dep_sgs="\$${cfg}_suggest"
567         eval dep_ifa="\$${cfg}_if"
568         eval dep_ifn="\$${cfg}_if_any"
569
570         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
572         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
573
574         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
575         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
576         enabled_all  $dep_all || disable $cfg
577         enabled_any  $dep_any || disable $cfg
578         disabled_any $dep_sel && disable $cfg
579
580         if enabled $cfg; then
581             enable_deep $dep_sel
582             enable_deep_weak $dep_sgs
583         fi
584
585         disable ${cfg}_checking
586     done
587 }
588
589 check_deps(){
590     unset allopts
591
592     do_check_deps "$@"
593
594     for cfg in $allopts; do
595         enabled $cfg || continue
596         eval dep_extralibs="\$${cfg}_extralibs"
597         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
598     done
599 }
600
601 print_config(){
602     pfx=$1
603     files=$2
604     shift 2
605     map 'eval echo "$v \${$v:-no}"' "$@" |
606     awk "BEGIN { split(\"$files\", files) }
607         {
608             c = \"$pfx\" toupper(\$1);
609             v = \$2;
610             sub(/yes/, 1, v);
611             sub(/no/,  0, v);
612             for (f in files) {
613                 file = files[f];
614                 if (file ~ /\\.h\$/) {
615                     printf(\"#define %s %d\\n\", c, v) >>file;
616                 } else if (file ~ /\\.asm\$/) {
617                     printf(\"%%define %s %d\\n\", c, v) >>file;
618                 } else if (file ~ /\\.mak\$/) {
619                     n = -v ? \"\" : \"!\";
620                     printf(\"%s%s=yes\\n\", n, c) >>file;
621                 }
622             }
623         }"
624 }
625
626 print_enabled(){
627     suf=$1
628     shift
629     for v; do
630         enabled $v && printf "%s\n" ${v%$suf};
631     done
632 }
633
634 append(){
635     var=$1
636     shift
637     eval "$var=\"\$$var $*\""
638 }
639
640 prepend(){
641     var=$1
642     shift
643     eval "$var=\"$* \$$var\""
644 }
645
646 add_cppflags(){
647     append CPPFLAGS "$@"
648 }
649
650 add_cflags(){
651     append CFLAGS $($cflags_filter "$@")
652 }
653
654 add_asflags(){
655     append ASFLAGS $($asflags_filter "$@")
656 }
657
658 add_ldflags(){
659     append LDFLAGS $($ldflags_filter "$@")
660 }
661
662 add_extralibs(){
663     prepend extralibs $($ldflags_filter "$@")
664 }
665
666 add_host_cppflags(){
667     append host_cppflags "$@"
668 }
669
670 add_host_cflags(){
671     append host_cflags $($host_cflags_filter "$@")
672 }
673
674 add_host_ldflags(){
675     append host_ldflags $($host_ldflags_filter "$@")
676 }
677
678 add_compat(){
679     append compat_objs $1
680     shift
681     map 'add_cppflags -D$v' "$@"
682 }
683
684 check_cmd(){
685     log "$@"
686     "$@" >> $logfile 2>&1
687 }
688
689 cc_o(){
690     eval printf '%s\\n' $CC_O
691 }
692
693 cc_e(){
694     eval printf '%s\\n' $CC_E
695 }
696
697 check_cc(){
698     log check_cc "$@"
699     cat > $TMPC
700     log_file $TMPC
701     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
702 }
703
704 check_cpp(){
705     log check_cpp "$@"
706     cat > $TMPC
707     log_file $TMPC
708     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
709 }
710
711 as_o(){
712     eval printf '%s\\n' $AS_O
713 }
714
715 check_as(){
716     log check_as "$@"
717     cat > $TMPS
718     log_file $TMPS
719     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
720 }
721
722 check_inline_asm(){
723     log check_inline_asm "$@"
724     name="$1"
725     code="$2"
726     shift 2
727     disable $name
728     check_cc "$@" <<EOF && enable $name
729 void foo(void){ __asm__ volatile($code); }
730 EOF
731 }
732
733 check_insn(){
734     log check_insn "$@"
735     check_inline_asm ${1}_inline "\"$2\""
736     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
737 }
738
739 check_yasm(){
740     log check_yasm "$@"
741     echo "$1" > $TMPS
742     log_file $TMPS
743     shift 1
744     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
745 }
746
747 ld_o(){
748     eval printf '%s\\n' $LD_O
749 }
750
751 check_ld(){
752     log check_ld "$@"
753     flags=$(filter_out '-l*' "$@")
754     libs=$(filter '-l*' "$@")
755     check_cc $($cflags_filter $flags) || return
756     flags=$($ldflags_filter $flags)
757     libs=$($ldflags_filter $libs)
758     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
759 }
760
761 check_code(){
762     log check_code "$@"
763     check=$1
764     headers=$2
765     code=$3
766     shift 3
767     {
768         for hdr in $headers; do
769             echo "#include <$hdr>"
770         done
771         echo "int main(void) { $code; return 0; }"
772     } | check_$check "$@"
773 }
774
775 check_cppflags(){
776     log check_cppflags "$@"
777     check_cc "$@" <<EOF && append CPPFLAGS "$@"
778 int x;
779 EOF
780 }
781
782 test_cflags(){
783     log test_cflags "$@"
784     set -- $($cflags_filter "$@")
785     check_cc "$@" <<EOF
786 int x;
787 EOF
788 }
789
790 check_cflags(){
791     log check_cflags "$@"
792     test_cflags "$@" && add_cflags "$@"
793 }
794
795 test_ldflags(){
796     log test_ldflags "$@"
797     check_ld "$@" <<EOF
798 int main(void){ return 0; }
799 EOF
800 }
801
802 check_ldflags(){
803     log check_ldflags "$@"
804     test_ldflags "$@" && add_ldflags "$@"
805 }
806
807 check_header(){
808     log check_header "$@"
809     header=$1
810     shift
811     disable_safe $header
812     check_cpp "$@" <<EOF && enable_safe $header
813 #include <$header>
814 int x;
815 EOF
816 }
817
818 check_func(){
819     log check_func "$@"
820     func=$1
821     shift
822     disable $func
823     check_ld "$@" <<EOF && enable $func
824 extern int $func();
825 int main(void){ $func(); }
826 EOF
827 }
828
829 check_mathfunc(){
830     log check_mathfunc "$@"
831     func=$1
832     narg=$2
833     shift 2
834     test $narg = 2 && args="f, g" || args="f"
835     disable $func
836     check_ld "$@" <<EOF && enable $func
837 #include <math.h>
838 float foo(float f, float g) { return $func($args); }
839 int main(void){ return 0; }
840 EOF
841 }
842
843 check_func_headers(){
844     log check_func_headers "$@"
845     headers=$1
846     funcs=$2
847     shift 2
848     {
849         for hdr in $headers; do
850             echo "#include <$hdr>"
851         done
852         for func in $funcs; do
853             echo "long check_$func(void) { return (long) $func; }"
854         done
855         echo "int main(void) { return 0; }"
856     } | check_ld "$@" && enable $funcs && enable_safe $headers
857 }
858
859 check_cpp_condition(){
860     log check_cpp_condition "$@"
861     header=$1
862     condition=$2
863     shift 2
864     check_cpp "$@" <<EOF
865 #include <$header>
866 #if !($condition)
867 #error "unsatisfied condition: $condition"
868 #endif
869 EOF
870 }
871
872 check_lib(){
873     log check_lib "$@"
874     header="$1"
875     func="$2"
876     shift 2
877     check_header $header && check_func $func "$@" && add_extralibs "$@"
878 }
879
880 check_lib2(){
881     log check_lib2 "$@"
882     headers="$1"
883     funcs="$2"
884     shift 2
885     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
886 }
887
888 check_pkg_config(){
889     log check_pkg_config "$@"
890     pkg="$1"
891     headers="$2"
892     funcs="$3"
893     shift 3
894     check_cmd $pkg_config --exists --print-errors $pkg || return
895     pkg_cflags=$($pkg_config --cflags $pkg)
896     pkg_libs=$($pkg_config --libs $pkg)
897     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
898         set_safe ${pkg}_cflags $pkg_cflags   &&
899         set_safe ${pkg}_libs   $pkg_libs
900 }
901
902 check_exec(){
903     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
904 }
905
906 check_exec_crash(){
907     code=$(cat)
908
909     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
910     # are safe but may not be available everywhere.  Thus we use
911     # raise(SIGTERM) instead.  The check is run in a subshell so we
912     # can redirect the "Terminated" message from the shell.  SIGBUS
913     # is not defined by standard C so it is used conditionally.
914
915     (check_exec "$@") >> $logfile 2>&1 <<EOF
916 #include <signal.h>
917 static void sighandler(int sig){
918     raise(SIGTERM);
919 }
920 int foo(void){
921     $code
922 }
923 int (*func_ptr)(void) = foo;
924 int main(void){
925     signal(SIGILL, sighandler);
926     signal(SIGFPE, sighandler);
927     signal(SIGSEGV, sighandler);
928 #ifdef SIGBUS
929     signal(SIGBUS, sighandler);
930 #endif
931     return func_ptr();
932 }
933 EOF
934 }
935
936 check_type(){
937     log check_type "$@"
938     headers=$1
939     type=$2
940     shift 2
941     disable_safe "$type"
942     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
943 }
944
945 check_struct(){
946     log check_struct "$@"
947     headers=$1
948     struct=$2
949     member=$3
950     shift 3
951     disable_safe "${struct}_${member}"
952     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
953         enable_safe "${struct}_${member}"
954 }
955
956 check_builtin(){
957     log check_builtin "$@"
958     name=$1
959     headers=$2
960     builtin=$3
961     shift 3
962     disable "$name"
963     check_code ld "$headers" "$builtin" "$@" && enable "$name"
964 }
965
966 require(){
967     name="$1"
968     header="$2"
969     func="$3"
970     shift 3
971     check_lib $header $func "$@" || die "ERROR: $name not found"
972 }
973
974 require2(){
975     name="$1"
976     headers="$2"
977     func="$3"
978     shift 3
979     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
980 }
981
982 require_pkg_config(){
983     pkg="$1"
984     check_pkg_config "$@" || die "ERROR: $pkg not found"
985     add_cflags    $(get_safe ${pkg}_cflags)
986     add_extralibs $(get_safe ${pkg}_libs)
987 }
988
989 hostcc_o(){
990     eval printf '%s\\n' $HOSTCC_O
991 }
992
993 check_host_cc(){
994     log check_host_cc "$@"
995     cat > $TMPC
996     log_file $TMPC
997     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
998 }
999
1000 check_host_cppflags(){
1001     log check_host_cppflags "$@"
1002     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1003 int x;
1004 EOF
1005 }
1006
1007 check_host_cflags(){
1008     log check_host_cflags "$@"
1009     set -- $($host_cflags_filter "$@")
1010     check_host_cc "$@" <<EOF && append host_cflags "$@"
1011 int x;
1012 EOF
1013 }
1014
1015 apply(){
1016     file=$1
1017     shift
1018     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1019 }
1020
1021 cp_if_changed(){
1022     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1023     mkdir -p "$(dirname $2)"
1024     $cp_f "$1" "$2"
1025 }
1026
1027 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1028 # system-dependent things.
1029
1030 COMPONENT_LIST="
1031     bsfs
1032     decoders
1033     demuxers
1034     encoders
1035     filters
1036     hwaccels
1037     indevs
1038     muxers
1039     outdevs
1040     parsers
1041     protocols
1042 "
1043
1044 EXAMPLE_LIST="
1045     output_example
1046 "
1047
1048 EXTERNAL_LIBRARY_LIST="
1049     avisynth
1050     bzlib
1051     frei0r
1052     gnutls
1053     libcdio
1054     libdc1394
1055     libfaac
1056     libfdk_aac
1057     libfreetype
1058     libgsm
1059     libilbc
1060     libmp3lame
1061     libopencore_amrnb
1062     libopencore_amrwb
1063     libopencv
1064     libopenjpeg
1065     libopus
1066     libpulse
1067     librtmp
1068     libschroedinger
1069     libspeex
1070     libtheora
1071     libvo_aacenc
1072     libvo_amrwbenc
1073     libvorbis
1074     libvpx
1075     libwavpack
1076     libx264
1077     libxavs
1078     libxvid
1079     openssl
1080     x11grab
1081     zlib
1082 "
1083
1084 HWACCEL_LIST="
1085     dxva2
1086     vaapi
1087     vda
1088     vdpau
1089 "
1090 LIBRARY_LIST="
1091     avcodec
1092     avdevice
1093     avfilter
1094     avformat
1095     avresample
1096     avutil
1097     swscale
1098 "
1099
1100 PROGRAM_LIST="
1101     avconv
1102     avplay
1103     avprobe
1104     avserver
1105 "
1106
1107 CONFIG_LIST="
1108     $COMPONENT_LIST
1109     $EXAMPLE_LIST
1110     $EXTERNAL_LIBRARY_LIST
1111     $HWACCEL_LIST
1112     $LIBRARY_LIST
1113     $PROGRAM_LIST
1114     dct
1115     doc
1116     error_resilience
1117     fft
1118     gpl
1119     gray
1120     hardcoded_tables
1121     lsp
1122     lzo
1123     mdct
1124     memalign_hack
1125     network
1126     nonfree
1127     pod2man
1128     pic
1129     rdft
1130     runtime_cpudetect
1131     safe_bitstream_reader
1132     shared
1133     small
1134     sram
1135     static
1136     swscale_alpha
1137     texi2html
1138     thumb
1139     version3
1140     xmm_clobber_test
1141 "
1142
1143 THREADS_LIST='
1144     pthreads
1145     w32threads
1146 '
1147
1148 ATOMICS_LIST='
1149     atomics_gcc
1150     atomics_suncc
1151     atomics_win32
1152 '
1153
1154 ARCH_LIST='
1155     aarch64
1156     alpha
1157     arm
1158     avr32
1159     avr32_ap
1160     avr32_uc
1161     bfin
1162     ia64
1163     m68k
1164     mips
1165     mips64
1166     parisc
1167     ppc
1168     ppc64
1169     s390
1170     sh4
1171     sparc
1172     sparc64
1173     tilegx
1174     tilepro
1175     tomi
1176     x86
1177     x86_32
1178     x86_64
1179 '
1180
1181 ARCH_EXT_LIST_ARM='
1182     armv5te
1183     armv6
1184     armv6t2
1185     neon
1186     vfp
1187     vfpv3
1188 '
1189
1190 ARCH_EXT_LIST_X86='
1191     amd3dnow
1192     amd3dnowext
1193     avx
1194     avx2
1195     fma4
1196     i686
1197     mmx
1198     mmxext
1199     sse
1200     sse2
1201     sse3
1202     sse4
1203     sse42
1204     ssse3
1205 '
1206
1207 ARCH_EXT_LIST="
1208     $ARCH_EXT_LIST_ARM
1209     $ARCH_EXT_LIST_X86
1210     altivec
1211     ppc4xx
1212     vis
1213 "
1214
1215 HAVE_LIST_CMDLINE='
1216     inline_asm
1217     symver
1218     yasm
1219 '
1220
1221 HAVE_LIST_PUB='
1222     bigendian
1223     fast_unaligned
1224 '
1225
1226 MATH_FUNCS="
1227     atanf
1228     atan2f
1229     cbrtf
1230     cosf
1231     exp2
1232     exp2f
1233     expf
1234     isinf
1235     isnan
1236     ldexpf
1237     llrint
1238     llrintf
1239     log2
1240     log2f
1241     log10f
1242     lrint
1243     lrintf
1244     powf
1245     rint
1246     round
1247     roundf
1248     sinf
1249     trunc
1250     truncf
1251 "
1252
1253 HAVE_LIST="
1254     $ARCH_EXT_LIST
1255     $(add_suffix _external $ARCH_EXT_LIST)
1256     $(add_suffix _inline   $ARCH_EXT_LIST)
1257     $HAVE_LIST_CMDLINE
1258     $HAVE_LIST_PUB
1259     $THREADS_LIST
1260     $ATOMICS_LIST
1261     $MATH_FUNCS
1262     aligned_malloc
1263     aligned_stack
1264     alsa_asoundlib_h
1265     altivec_h
1266     arpa_inet_h
1267     asm_mod_q
1268     asm_mod_y
1269     atomic_cas_ptr
1270     atomics_native
1271     attribute_may_alias
1272     attribute_packed
1273     cdio_paranoia_h
1274     cdio_paranoia_paranoia_h
1275     closesocket
1276     CommandLineToArgvW
1277     cpunop
1278     CryptGenRandom
1279     dcbzl
1280     dev_bktr_ioctl_bt848_h
1281     dev_bktr_ioctl_meteor_h
1282     dev_ic_bt8xx_h
1283     dev_video_bktr_ioctl_bt848_h
1284     dev_video_meteor_ioctl_meteor_h
1285     direct_h
1286     dlfcn_h
1287     dlopen
1288     dos_paths
1289     dxva_h
1290     ebp_available
1291     ebx_available
1292     fast_64bit
1293     fast_clz
1294     fast_cmov
1295     fcntl
1296     fork
1297     getaddrinfo
1298     gethrtime
1299     getopt
1300     GetProcessAffinityMask
1301     GetProcessMemoryInfo
1302     GetProcessTimes
1303     GetSystemTimeAsFileTime
1304     getrusage
1305     getservbyport
1306     gettimeofday
1307     gnu_as
1308     gsm_h
1309     ibm_asm
1310     inet_aton
1311     io_h
1312     inline_asm_labels
1313     isatty
1314     jack_port_get_latency_range
1315     ldbrx
1316     libdc1394_1
1317     libdc1394_2
1318     local_aligned_16
1319     local_aligned_8
1320     localtime_r
1321     loongson
1322     machine_ioctl_bt848_h
1323     machine_ioctl_meteor_h
1324     machine_rw_barrier
1325     malloc_h
1326     MapViewOfFile
1327     memalign
1328     MemoryBarrier
1329     mkstemp
1330     mm_empty
1331     mmap
1332     mprotect
1333     msvcrt
1334     nanosleep
1335     poll_h
1336     posix_memalign
1337     pragma_deprecated
1338     rdtsc
1339     sched_getaffinity
1340     sdl
1341     SetConsoleTextAttribute
1342     setmode
1343     setrlimit
1344     Sleep
1345     sndio_h
1346     socklen_t
1347     soundcard_h
1348     strerror_r
1349     strptime
1350     strtok_r
1351     struct_addrinfo
1352     struct_group_source_req
1353     struct_ip_mreq_source
1354     struct_ipv6_mreq
1355     struct_pollfd
1356     struct_rusage_ru_maxrss
1357     struct_sockaddr_in6
1358     struct_sockaddr_sa_len
1359     struct_sockaddr_storage
1360     struct_v4l2_frmivalenum_discrete
1361     symver_asm_label
1362     symver_gnu_asm
1363     sync_val_compare_and_swap
1364     sysconf
1365     sysctl
1366     sys_mman_h
1367     sys_param_h
1368     sys_resource_h
1369     sys_select_h
1370     sys_soundcard_h
1371     sys_time_h
1372     sys_un_h
1373     sys_videoio_h
1374     threads
1375     unistd_h
1376     usleep
1377     vdpau_x11
1378     vfp_args
1379     VirtualAlloc
1380     windows_h
1381     winsock2_h
1382     xform_asm
1383     xlib
1384     xmm_clobbers
1385 "
1386
1387 # options emitted with CONFIG_ prefix but not available on the command line
1388 CONFIG_EXTRA="
1389     aandcttables
1390     ac3dsp
1391     audio_frame_queue
1392     dsputil
1393     gcrypt
1394     golomb
1395     gplv3
1396     h263dsp
1397     h264chroma
1398     h264dsp
1399     h264pred
1400     h264qpel
1401     hpeldsp
1402     huffman
1403     lgplv3
1404     lpc
1405     mpegaudio
1406     mpegaudiodsp
1407     mpegvideo
1408     mpegvideoenc
1409     nettle
1410     rangecoder
1411     riffdec
1412     riffenc
1413     rtpdec
1414     rtpenc_chain
1415     sinewin
1416     videodsp
1417     vp3dsp
1418 "
1419
1420 CMDLINE_SELECT="
1421     $ARCH_EXT_LIST
1422     $CONFIG_LIST
1423     $HAVE_LIST_CMDLINE
1424     $THREADS_LIST
1425     asm
1426     cross_compile
1427     debug
1428     extra_warnings
1429     logging
1430     lto
1431     optimizations
1432 "
1433
1434 PATHS_LIST='
1435     bindir
1436     datadir
1437     docdir
1438     incdir
1439     libdir
1440     mandir
1441     prefix
1442     shlibdir
1443 '
1444
1445 CMDLINE_SET="
1446     $PATHS_LIST
1447     ar
1448     arch
1449     as
1450     build_suffix
1451     cc
1452     cpu
1453     cross_prefix
1454     dep_cc
1455     extra_version
1456     host_cc
1457     host_cflags
1458     host_ld
1459     host_ldflags
1460     host_libs
1461     host_os
1462     ld
1463     logfile
1464     malloc_prefix
1465     nm
1466     optflags
1467     pkg_config
1468     random_seed
1469     samples
1470     sysinclude
1471     sysroot
1472     target_exec
1473     target_os
1474     target_path
1475     target_samples
1476     toolchain
1477 "
1478
1479 CMDLINE_APPEND="
1480     extra_cflags
1481     host_cppflags
1482 "
1483
1484 # code dependency declarations
1485
1486 # architecture extensions
1487
1488 armv5te_deps="arm"
1489 armv6_deps="arm"
1490 armv6t2_deps="arm"
1491 neon_deps="arm"
1492 vfp_deps="arm"
1493 vfpv3_deps="vfp"
1494
1495 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1496
1497 altivec_deps="ppc"
1498 ppc4xx_deps="ppc"
1499
1500 vis_deps="sparc"
1501
1502 cpunop_deps="i686"
1503 x86_64_select="i686"
1504 x86_64_suggest="fast_cmov"
1505
1506 amd3dnow_deps="mmx"
1507 amd3dnowext_deps="amd3dnow"
1508 mmx_deps="x86"
1509 mmxext_deps="mmx"
1510 sse_deps="mmxext"
1511 sse2_deps="sse"
1512 sse3_deps="sse2"
1513 ssse3_deps="sse3"
1514 sse4_deps="ssse3"
1515 sse42_deps="sse4"
1516 avx_deps="sse42"
1517 fma4_deps="avx"
1518 avx2_deps="avx"
1519
1520 mmx_external_deps="yasm"
1521 mmx_inline_deps="inline_asm"
1522 mmx_suggest="mmx_external mmx_inline"
1523
1524 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1525     eval dep=\$${ext}_deps
1526     eval ${ext}_external_deps='"${dep}_external"'
1527     eval ${ext}_inline_deps='"${dep}_inline"'
1528     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1529 done
1530
1531 aligned_stack_if_any="ppc x86"
1532 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1533 fast_clz_if_any="alpha avr32 mips ppc x86"
1534 fast_unaligned_if_any="ppc x86"
1535
1536 inline_asm_deps="!tms470"
1537 need_memalign="altivec neon sse"
1538
1539 symver_if_any="symver_asm_label symver_gnu_asm"
1540
1541 log2_deps="!msvcrt"
1542
1543 # subsystems
1544 dct_select="rdft"
1545 error_resilience_select="dsputil"
1546 lpc_select="dsputil"
1547 mdct_select="fft"
1548 rdft_select="fft"
1549 mpegaudio_select="mpegaudiodsp"
1550 mpegaudiodsp_select="dct"
1551 mpegvideo_select="dsputil hpeldsp videodsp"
1552 mpegvideoenc_select="mpegvideo"
1553
1554 # decoders / encoders
1555 aac_decoder_select="mdct sinewin"
1556 aac_encoder_select="audio_frame_queue mdct sinewin"
1557 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1558 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1559 ac3_encoder_select="mdct ac3dsp dsputil"
1560 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1561 aic_decoder_select="dsputil golomb"
1562 alac_encoder_select="lpc"
1563 als_decoder_select="dsputil"
1564 amrnb_decoder_select="lsp"
1565 amrwb_decoder_select="lsp"
1566 amv_decoder_select="dsputil hpeldsp"
1567 ape_decoder_select="dsputil"
1568 asv1_decoder_select="dsputil"
1569 asv1_encoder_select="dsputil"
1570 asv2_decoder_select="dsputil"
1571 asv2_encoder_select="dsputil"
1572 atrac1_decoder_select="mdct sinewin"
1573 atrac3_decoder_select="mdct"
1574 bink_decoder_select="dsputil hpeldsp"
1575 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1576 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1577 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1578 cllc_decoder_select="dsputil"
1579 comfortnoise_encoder_select="lpc"
1580 cook_decoder_select="dsputil mdct sinewin"
1581 cscd_decoder_select="lzo"
1582 cscd_decoder_suggest="zlib"
1583 dca_decoder_select="mdct"
1584 dnxhd_decoder_select="dsputil"
1585 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1586 dvvideo_decoder_select="dsputil"
1587 dvvideo_encoder_select="dsputil"
1588 dxa_decoder_deps="zlib"
1589 eac3_decoder_select="ac3_decoder"
1590 eac3_encoder_select="ac3_encoder"
1591 eamad_decoder_select="aandcttables dsputil mpegvideo"
1592 eatgq_decoder_select="aandcttables dsputil"
1593 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1594 ffv1_decoder_select="dsputil golomb rangecoder"
1595 ffv1_encoder_select="dsputil rangecoder"
1596 ffvhuff_decoder_select="dsputil"
1597 ffvhuff_encoder_select="dsputil huffman"
1598 flac_decoder_select="golomb"
1599 flac_encoder_select="dsputil golomb lpc"
1600 flashsv_decoder_deps="zlib"
1601 flashsv_encoder_deps="zlib"
1602 flashsv2_decoder_deps="zlib"
1603 flv_decoder_select="h263_decoder"
1604 flv_encoder_select="h263_encoder"
1605 fourxm_decoder_select="dsputil"
1606 fraps_decoder_select="dsputil huffman"
1607 g2m_decoder_deps="zlib"
1608 g2m_decoder_select="dsputil"
1609 h261_decoder_select="error_resilience mpegvideo"
1610 h261_encoder_select="aandcttables mpegvideoenc"
1611 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1612 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1613 h263i_decoder_select="h263_decoder"
1614 h263p_encoder_select="h263_encoder"
1615 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1616 h264_decoder_suggest="error_resilience"
1617 hevc_decoder_select="dsputil golomb videodsp"
1618 huffyuv_decoder_select="dsputil"
1619 huffyuv_encoder_select="dsputil huffman"
1620 iac_decoder_select="dsputil fft mdct sinewin"
1621 imc_decoder_select="dsputil fft mdct sinewin"
1622 indeo3_decoder_select="hpeldsp"
1623 interplay_video_decoder_select="hpeldsp"
1624 jpegls_decoder_select="dsputil golomb hpeldsp"
1625 jpegls_encoder_select="golomb"
1626 jv_decoder_select="dsputil"
1627 lagarith_decoder_select="dsputil"
1628 ljpeg_encoder_select="aandcttables mpegvideoenc"
1629 loco_decoder_select="golomb"
1630 mdec_decoder_select="dsputil error_resilience mpegvideo"
1631 metasound_decoder_select="lsp mdct sinewin"
1632 mimic_decoder_select="dsputil hpeldsp"
1633 mjpeg_decoder_select="dsputil hpeldsp"
1634 mjpegb_decoder_select="dsputil hpeldsp"
1635 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1636 mlp_decoder_select="dsputil mlp_parser"
1637 motionpixels_decoder_select="dsputil"
1638 mp1_decoder_select="mpegaudio"
1639 mp1float_decoder_select="mpegaudio"
1640 mp2_decoder_select="mpegaudio"
1641 mp2float_decoder_select="mpegaudio"
1642 mp3_decoder_select="mpegaudio"
1643 mp3adu_decoder_select="mpegaudio"
1644 mp3adufloat_decoder_select="mpegaudio"
1645 mp3float_decoder_select="mpegaudio"
1646 mp3on4_decoder_select="mpegaudio"
1647 mp3on4float_decoder_select="mpegaudio"
1648 mpc7_decoder_select="dsputil mpegaudiodsp"
1649 mpc8_decoder_select="dsputil mpegaudiodsp"
1650 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1651 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1652 mpeg1video_decoder_select="error_resilience mpegvideo"
1653 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1654 mpeg2video_decoder_select="error_resilience mpegvideo"
1655 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1656 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1657 mpeg4_encoder_select="h263_encoder"
1658 msmpeg4v1_decoder_select="h263_decoder"
1659 msmpeg4v2_decoder_select="h263_decoder"
1660 msmpeg4v2_encoder_select="h263_encoder"
1661 msmpeg4v3_decoder_select="h263_decoder"
1662 msmpeg4v3_encoder_select="h263_encoder"
1663 mss2_decoder_select="error_resilience vc1_decoder"
1664 mxpeg_decoder_select="dsputil hpeldsp"
1665 nellymoser_decoder_select="mdct sinewin"
1666 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1667 nuv_decoder_select="dsputil lzo"
1668 png_decoder_deps="zlib"
1669 png_decoder_select="dsputil"
1670 png_encoder_deps="zlib"
1671 png_encoder_select="dsputil"
1672 prores_decoder_select="dsputil"
1673 prores_encoder_select="dsputil"
1674 qcelp_decoder_select="lsp"
1675 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1676 ra_144_encoder_select="audio_frame_queue lpc"
1677 ralf_decoder_select="golomb"
1678 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1679 rv10_encoder_select="h263_encoder"
1680 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1681 rv20_encoder_select="h263_encoder"
1682 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1683 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1684 shorten_decoder_select="golomb"
1685 sipr_decoder_select="lsp"
1686 sp5x_decoder_select="dsputil hpeldsp"
1687 svq1_decoder_select="hpeldsp"
1688 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1689 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1690 svq3_decoder_suggest="error_resilience zlib"
1691 tak_decoder_select="dsputil"
1692 theora_decoder_select="vp3_decoder"
1693 tiff_decoder_suggest="zlib"
1694 tiff_encoder_suggest="zlib"
1695 thp_decoder_select="dsputil hpeldsp"
1696 truehd_decoder_select="mlp_decoder"
1697 truemotion2_decoder_select="dsputil"
1698 truespeech_decoder_select="dsputil"
1699 tscc_decoder_deps="zlib"
1700 twinvq_decoder_select="mdct lsp sinewin"
1701 utvideo_decoder_select="dsputil"
1702 utvideo_encoder_select="dsputil huffman"
1703 vble_decoder_select="dsputil"
1704 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1705 vc1image_decoder_select="vc1_decoder"
1706 vorbis_decoder_select="mdct"
1707 vorbis_encoder_select="mdct"
1708 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1709 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1710 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1711 vp6a_decoder_select="vp6_decoder"
1712 vp6f_decoder_select="vp6_decoder"
1713 vp8_decoder_select="h264pred videodsp"
1714 vp9_decoder_select="videodsp"
1715 webp_decoder_select="vp8_decoder"
1716 wmapro_decoder_select="mdct sinewin"
1717 wmav1_decoder_select="mdct sinewin"
1718 wmav1_encoder_select="mdct sinewin"
1719 wmav2_decoder_select="mdct sinewin"
1720 wmav2_encoder_select="mdct sinewin"
1721 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1722 wmv1_decoder_select="h263_decoder"
1723 wmv1_encoder_select="h263_encoder"
1724 wmv2_decoder_select="h263_decoder videodsp"
1725 wmv2_encoder_select="h263_encoder"
1726 wmv3_decoder_select="vc1_decoder"
1727 wmv3image_decoder_select="wmv3_decoder"
1728 zerocodec_decoder_deps="zlib"
1729 zlib_decoder_deps="zlib"
1730 zlib_encoder_deps="zlib"
1731 zmbv_decoder_deps="zlib"
1732 zmbv_encoder_deps="zlib"
1733
1734 # hardware accelerators
1735 dxva2_deps="dxva2api_h"
1736 vaapi_deps="va_va_h"
1737 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1738 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1739 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1740
1741 h263_vaapi_hwaccel_deps="vaapi"
1742 h263_vaapi_hwaccel_select="h263_decoder"
1743 h263_vdpau_hwaccel_deps="vdpau"
1744 h263_vdpau_hwaccel_select="h263_decoder"
1745 h264_dxva2_hwaccel_deps="dxva2"
1746 h264_dxva2_hwaccel_select="h264_decoder"
1747 h264_vaapi_hwaccel_deps="vaapi"
1748 h264_vaapi_hwaccel_select="h264_decoder"
1749 h264_vda_hwaccel_deps="vda"
1750 h264_vda_hwaccel_select="h264_decoder"
1751 h264_vdpau_hwaccel_deps="vdpau"
1752 h264_vdpau_hwaccel_select="h264_decoder"
1753 mpeg1_vdpau_hwaccel_deps="vdpau"
1754 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1755 mpeg2_dxva2_hwaccel_deps="dxva2"
1756 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1757 mpeg2_vaapi_hwaccel_deps="vaapi"
1758 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1759 mpeg2_vdpau_hwaccel_deps="vdpau"
1760 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1761 mpeg4_vaapi_hwaccel_deps="vaapi"
1762 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1763 mpeg4_vdpau_hwaccel_deps="vdpau"
1764 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1765 vc1_dxva2_hwaccel_deps="dxva2"
1766 vc1_dxva2_hwaccel_select="vc1_decoder"
1767 vc1_vaapi_hwaccel_deps="vaapi"
1768 vc1_vaapi_hwaccel_select="vc1_decoder"
1769 vc1_vdpau_hwaccel_deps="vdpau"
1770 vc1_vdpau_hwaccel_select="vc1_decoder"
1771 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1772 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1773 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1774
1775 # parsers
1776 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1777 mpeg4video_parser_select="error_resilience mpegvideo"
1778 mpegvideo_parser_select="error_resilience mpegvideo"
1779 vc1_parser_select="mpegvideo"
1780
1781 # external libraries
1782 libfaac_encoder_deps="libfaac"
1783 libfaac_encoder_select="audio_frame_queue"
1784 libfdk_aac_decoder_deps="libfdk_aac"
1785 libfdk_aac_encoder_deps="libfdk_aac"
1786 libfdk_aac_encoder_select="audio_frame_queue"
1787 libgsm_decoder_deps="libgsm"
1788 libgsm_encoder_deps="libgsm"
1789 libgsm_ms_decoder_deps="libgsm"
1790 libgsm_ms_encoder_deps="libgsm"
1791 libilbc_decoder_deps="libilbc"
1792 libilbc_encoder_deps="libilbc"
1793 libmp3lame_encoder_deps="libmp3lame"
1794 libmp3lame_encoder_select="audio_frame_queue"
1795 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1796 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1797 libopencore_amrnb_encoder_select="audio_frame_queue"
1798 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1799 libopenjpeg_decoder_deps="libopenjpeg"
1800 libopenjpeg_encoder_deps="libopenjpeg"
1801 libopus_decoder_deps="libopus"
1802 libopus_encoder_deps="libopus"
1803 libopus_encoder_select="audio_frame_queue"
1804 libschroedinger_decoder_deps="libschroedinger"
1805 libschroedinger_encoder_deps="libschroedinger"
1806 libspeex_decoder_deps="libspeex"
1807 libspeex_encoder_deps="libspeex"
1808 libspeex_encoder_select="audio_frame_queue"
1809 libtheora_encoder_deps="libtheora"
1810 libvo_aacenc_encoder_deps="libvo_aacenc"
1811 libvo_aacenc_encoder_select="audio_frame_queue"
1812 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1813 libvorbis_encoder_deps="libvorbis"
1814 libvorbis_encoder_select="audio_frame_queue"
1815 libvpx_vp8_decoder_deps="libvpx"
1816 libvpx_vp8_encoder_deps="libvpx"
1817 libvpx_vp9_decoder_deps="libvpx"
1818 libvpx_vp9_encoder_deps="libvpx"
1819 libwavpack_encoder_deps="libwavpack"
1820 libx264_encoder_deps="libx264"
1821 libxavs_encoder_deps="libxavs"
1822 libxvid_encoder_deps="libxvid"
1823
1824 # demuxers / muxers
1825 ac3_demuxer_select="ac3_parser"
1826 asf_demuxer_select="riffdec"
1827 asf_muxer_select="riffenc"
1828 asf_stream_muxer_select="asf_muxer"
1829 avi_demuxer_select="riffdec"
1830 avi_muxer_select="riffenc"
1831 avisynth_demuxer_deps="avisynth"
1832 avisynth_demuxer_select="riffdec"
1833 caf_demuxer_select="riffdec"
1834 dirac_demuxer_select="dirac_parser"
1835 dxa_demuxer_select="riffdec"
1836 eac3_demuxer_select="ac3_parser"
1837 f4v_muxer_select="mov_muxer"
1838 flac_demuxer_select="flac_parser"
1839 hds_muxer_select="flv_muxer"
1840 hls_muxer_select="mpegts_muxer"
1841 ipod_muxer_select="mov_muxer"
1842 ismv_muxer_select="mov_muxer"
1843 matroska_audio_muxer_select="matroska_muxer"
1844 matroska_demuxer_select="riffdec"
1845 matroska_demuxer_suggest="bzlib lzo zlib"
1846 matroska_muxer_select="riffenc"
1847 mmf_muxer_select="riffenc"
1848 mov_demuxer_select="riffdec"
1849 mov_demuxer_suggest="zlib"
1850 mov_muxer_select="riffenc rtpenc_chain"
1851 mp3_demuxer_select="mpegaudio_parser"
1852 mp4_muxer_select="mov_muxer"
1853 mpegts_muxer_select="adts_muxer latm_muxer"
1854 mpegtsraw_demuxer_select="mpegts_demuxer"
1855 mxf_d10_muxer_select="mxf_muxer"
1856 nut_muxer_select="riffenc"
1857 nuv_demuxer_select="riffdec"
1858 ogg_demuxer_select="golomb"
1859 psp_muxer_select="mov_muxer"
1860 rtp_demuxer_select="sdp_demuxer"
1861 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1862 rtsp_demuxer_select="http_protocol rtpdec"
1863 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1864 sap_demuxer_select="sdp_demuxer"
1865 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1866 sdp_demuxer_select="rtpdec"
1867 smoothstreaming_muxer_select="ismv_muxer"
1868 spdif_muxer_select="aac_parser"
1869 tak_demuxer_select="tak_parser"
1870 tg2_muxer_select="mov_muxer"
1871 tgp_muxer_select="mov_muxer"
1872 w64_demuxer_select="wav_demuxer"
1873 wav_demuxer_select="riffdec"
1874 wav_muxer_select="riffenc"
1875 webm_muxer_select="riffenc"
1876 wtv_demuxer_select="riffdec"
1877 xmv_demuxer_select="riffdec"
1878 xwma_demuxer_select="riffdec"
1879
1880 # indevs / outdevs
1881 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1882 alsa_outdev_deps="alsa_asoundlib_h"
1883 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1884 dv1394_indev_deps="dv1394"
1885 dv1394_indev_select="dv_demuxer"
1886 fbdev_indev_deps="linux_fb_h"
1887 jack_indev_deps="jack_jack_h pthreads"
1888 libcdio_indev_deps="libcdio"
1889 libdc1394_indev_deps="libdc1394"
1890 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1891 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1892 pulse_indev_deps="libpulse"
1893 sndio_indev_deps="sndio_h"
1894 sndio_outdev_deps="sndio_h"
1895 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1896 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1897 vfwcap_indev_extralibs="-lavicap32"
1898 x11grab_indev_deps="x11grab XShmCreateImage"
1899
1900 # protocols
1901 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1902 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1903 ffrtmpcrypt_protocol_select="tcp_protocol"
1904 ffrtmphttp_protocol_deps="!librtmp_protocol"
1905 ffrtmphttp_protocol_select="http_protocol"
1906 gopher_protocol_select="network"
1907 httpproxy_protocol_select="tcp_protocol"
1908 http_protocol_select="tcp_protocol"
1909 https_protocol_select="tls_protocol"
1910 librtmp_protocol_deps="librtmp"
1911 librtmpe_protocol_deps="librtmp"
1912 librtmps_protocol_deps="librtmp"
1913 librtmpt_protocol_deps="librtmp"
1914 librtmpte_protocol_deps="librtmp"
1915 mmsh_protocol_select="http_protocol"
1916 mmst_protocol_select="network"
1917 rtmp_protocol_deps="!librtmp_protocol"
1918 rtmp_protocol_select="tcp_protocol"
1919 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1920 rtmps_protocol_deps="!librtmp_protocol"
1921 rtmps_protocol_select="tls_protocol"
1922 rtmpt_protocol_select="ffrtmphttp_protocol"
1923 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1924 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1925 rtp_protocol_select="udp_protocol"
1926 sctp_protocol_deps="struct_sctp_event_subscribe"
1927 sctp_protocol_select="network"
1928 srtp_protocol_select="rtp_protocol"
1929 tcp_protocol_select="network"
1930 tls_protocol_deps_any="openssl gnutls"
1931 tls_protocol_select="tcp_protocol"
1932 udp_protocol_select="network"
1933 unix_protocol_deps="sys_un_h"
1934 unix_protocol_select="network"
1935
1936 # filters
1937 blackframe_filter_deps="gpl"
1938 boxblur_filter_deps="gpl"
1939 cropdetect_filter_deps="gpl"
1940 delogo_filter_deps="gpl"
1941 drawtext_filter_deps="libfreetype"
1942 frei0r_filter_deps="frei0r dlopen strtok_r"
1943 frei0r_filter_extralibs='$ldl'
1944 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1945 frei0r_src_filter_extralibs='$ldl'
1946 hqdn3d_filter_deps="gpl"
1947 interlace_filter_deps="gpl"
1948 resample_filter_deps="avresample"
1949 ocv_filter_deps="libopencv"
1950 scale_filter_deps="swscale"
1951 yadif_filter_deps="gpl"
1952
1953 # examples
1954 output_example_deps="avcodec avformat avutil swscale"
1955
1956 # libraries
1957 avcodec_deps="avutil"
1958 avdevice_deps="avutil avcodec avformat"
1959 avfilter_deps="avutil"
1960 avformat_deps="avutil avcodec"
1961 avresample_deps="avutil"
1962 swscale_deps="avutil"
1963
1964 # programs
1965 avconv_deps="avcodec avfilter avformat avresample swscale"
1966 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1967                fps_filter null_filter resample_filter scale_filter
1968                setpts_filter trim_filter"
1969 avplay_deps="avcodec avformat avresample swscale sdl"
1970 avplay_select="rdft"
1971 avprobe_deps="avcodec avformat"
1972 avserver_deps="avformat fork !shared"
1973 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1974 avserver_extralibs='$ldl'
1975
1976 # documentation
1977 pod2man_deps="doc"
1978 texi2html_deps="doc"
1979
1980 # default parameters
1981
1982 logfile="config.log"
1983
1984 # installation paths
1985 prefix_default="/usr/local"
1986 bindir_default='${prefix}/bin'
1987 datadir_default='${prefix}/share/avconv'
1988 docdir_default='${prefix}/share/doc/libav'
1989 incdir_default='${prefix}/include'
1990 libdir_default='${prefix}/lib'
1991 mandir_default='${prefix}/share/man'
1992 shlibdir_default="$libdir_default"
1993
1994 # toolchain
1995 ar_default="ar"
1996 cc_default="gcc"
1997 host_cc_default="gcc"
1998 cp_f="cp -f"
1999 ln_s="ln -s -f"
2000 nm_default="nm -g"
2001 objformat="elf"
2002 pkg_config_default=pkg-config
2003 ranlib="ranlib"
2004 strip="strip"
2005 yasmexe="yasm"
2006
2007 nogas=":"
2008
2009 # machine
2010 arch_default=$(uname -m)
2011 cpu="generic"
2012
2013 # OS
2014 target_os_default=$(tolower $(uname -s))
2015 host_os=$target_os_default
2016
2017 # configurable options
2018 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2019
2020 enable asm
2021 enable debug
2022 enable doc
2023 enable optimizations
2024 enable safe_bitstream_reader
2025 enable static
2026 enable swscale_alpha
2027
2028 # By default, enable only those hwaccels that have no external dependencies.
2029 enable dxva2 vdpau
2030
2031 # build settings
2032 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2033 LIBPREF="lib"
2034 LIBSUF=".a"
2035 FULLNAME='$(NAME)$(BUILDSUF)'
2036 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2037 SLIBPREF="lib"
2038 SLIBSUF=".so"
2039 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2040 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2041 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2042 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2043 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2044 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2045
2046 asflags_filter=echo
2047 cflags_filter=echo
2048 ldflags_filter=echo
2049
2050 AS_C='-c'
2051 AS_O='-o $@'
2052 CC_C='-c'
2053 CC_E='-E -o $@'
2054 CC_O='-o $@'
2055 LD_O='-o $@'
2056 LD_LIB='-l%'
2057 LD_PATH='-L'
2058 HOSTCC_C='-c'
2059 HOSTCC_O='-o $@'
2060 HOSTLD_O='-o $@'
2061
2062 host_cflags='-O3 -g'
2063 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2064 host_libs='-lm'
2065 host_cflags_filter=echo
2066 host_ldflags_filter=echo
2067
2068 target_path='$(CURDIR)'
2069
2070 # since the object filename is not given with the -MM flag, the compiler
2071 # is only able to print the basename, and we must add the path ourselves
2072 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2073 DEPFLAGS='-MM'
2074
2075 # find source path
2076 if test -f configure; then
2077     source_path=.
2078 else
2079     source_path=$(cd $(dirname "$0"); pwd)
2080     echo "$source_path" | grep -q '[[:blank:]]' &&
2081         die "Out of tree builds are impossible with whitespace in source path."
2082     test -e "$source_path/config.h" &&
2083         die "Out of tree builds are impossible with config.h in source dir."
2084 fi
2085
2086 for v in "$@"; do
2087     r=${v#*=}
2088     l=${v%"$r"}
2089     r=$(sh_quote "$r")
2090     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2091 done
2092
2093 find_things(){
2094     thing=$1
2095     pattern=$2
2096     file=$source_path/$3
2097     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2098 }
2099
2100 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2101 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2102 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2103 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2104 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2105 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2106 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2107 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2108 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2109 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2110 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2111
2112 ALL_COMPONENTS="
2113     $BSF_LIST
2114     $DECODER_LIST
2115     $DEMUXER_LIST
2116     $ENCODER_LIST
2117     $FILTER_LIST
2118     $HWACCEL_LIST
2119     $INDEV_LIST
2120     $MUXER_LIST
2121     $OUTDEV_LIST
2122     $PARSER_LIST
2123     $PROTOCOL_LIST
2124 "
2125
2126 for n in $COMPONENT_LIST; do
2127     v=$(toupper ${n%s})_LIST
2128     eval enable \$$v
2129     eval ${n}_if_any="\$$v"
2130 done
2131
2132 enable $ARCH_EXT_LIST
2133
2134 die_unknown(){
2135     echo "Unknown option \"$1\"."
2136     echo "See $0 --help for available options."
2137     exit 1
2138 }
2139
2140 print_3_columns() {
2141     cat | tr ' ' '\n' | sort | pr -r -3 -t
2142 }
2143
2144 show_list() {
2145     suffix=_$1
2146     shift
2147     echo $* | sed s/$suffix//g | print_3_columns
2148     exit 0
2149 }
2150
2151 rand_list(){
2152     IFS=', '
2153     set -- $*
2154     unset IFS
2155     for thing; do
2156         comp=${thing%:*}
2157         prob=${thing#$comp}
2158         prob=${prob#:}
2159         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2160         echo "prob ${prob:-0.5}"
2161         printf '%s\n' $comp
2162     done
2163 }
2164
2165 do_random(){
2166     action=$1
2167     shift
2168     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2169     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2170 }
2171
2172 for opt do
2173     optval="${opt#*=}"
2174     case "$opt" in
2175         --extra-ldflags=*)
2176             add_ldflags $optval
2177         ;;
2178         --extra-libs=*)
2179             add_extralibs $optval
2180         ;;
2181         --disable-devices)
2182             disable $INDEV_LIST $OUTDEV_LIST
2183         ;;
2184         --enable-debug=*)
2185             debuglevel="$optval"
2186         ;;
2187         --disable-programs)
2188             disable $PROGRAM_LIST
2189         ;;
2190         --disable-everything)
2191             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2192         ;;
2193         --disable-all)
2194             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2195             disable $LIBRARY_LIST $PROGRAM_LIST doc
2196         ;;
2197         --enable-random|--disable-random)
2198             action=${opt%%-random}
2199             do_random ${action#--} $COMPONENT_LIST
2200         ;;
2201         --enable-random=*|--disable-random=*)
2202             action=${opt%%-random=*}
2203             do_random ${action#--} $optval
2204         ;;
2205         --enable-*=*|--disable-*=*)
2206             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2207             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2208             eval list=\$$(toupper $thing)_LIST
2209             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2210             $action $(filter "$name" $list)
2211         ;;
2212         --enable-?*|--disable-?*)
2213             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2214             if is_in $option $COMPONENT_LIST; then
2215                 test $action = disable && action=unset
2216                 eval $action \$$(toupper ${option%s})_LIST
2217             elif is_in $option $CMDLINE_SELECT; then
2218                 $action $option
2219             else
2220                 die_unknown $opt
2221             fi
2222         ;;
2223         --list-*)
2224             NAME="${opt#--list-}"
2225             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2226             NAME=${NAME%s}
2227             eval show_list $NAME \$$(toupper $NAME)_LIST
2228         ;;
2229         --help|-h) show_help
2230         ;;
2231         *)
2232             optname="${opt%%=*}"
2233             optname="${optname#--}"
2234             optname=$(echo "$optname" | sed 's/-/_/g')
2235             if is_in $optname $CMDLINE_SET; then
2236                 eval $optname='$optval'
2237             elif is_in $optname $CMDLINE_APPEND; then
2238                 append $optname "$optval"
2239             else
2240                 die_unknown $opt
2241             fi
2242         ;;
2243     esac
2244 done
2245
2246 disabled logging && logfile=/dev/null
2247
2248 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2249 set >> $logfile
2250
2251 test -n "$cross_prefix" && enable cross_compile
2252
2253 if enabled cross_compile; then
2254     test -n "$arch" && test -n "$target_os" ||
2255         die "Must specify target arch and OS when cross-compiling"
2256 fi
2257
2258 ar_default="${cross_prefix}${ar_default}"
2259 cc_default="${cross_prefix}${cc_default}"
2260 nm_default="${cross_prefix}${nm_default}"
2261 pkg_config_default="${cross_prefix}${pkg_config_default}"
2262 ranlib="${cross_prefix}${ranlib}"
2263 strip="${cross_prefix}${strip}"
2264
2265 sysinclude_default="${sysroot}/usr/include"
2266
2267 case "$toolchain" in
2268     clang-asan)
2269         cc_default="clang"
2270         add_cflags  -fsanitize=address
2271         add_ldflags -fsanitize=address
2272     ;;
2273     clang-tsan)
2274         cc_default="clang"
2275         add_cflags  -fsanitize=thread -pie
2276         add_ldflags -fsanitize=thread -pie
2277     ;;
2278     gcc-asan)
2279         cc_default="gcc"
2280         add_cflags  -fsanitize=address
2281         add_ldflags -fsanitize=address
2282     ;;
2283     gcc-tsan)
2284         cc_default="gcc"
2285         add_cflags  -fsanitize=thread -pie -fPIC
2286         add_ldflags -fsanitize=thread -pie -fPIC
2287     ;;
2288     valgrind-massif)
2289         target_exec_default="valgrind"
2290         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2291     ;;
2292     valgrind-memcheck)
2293         target_exec_default="valgrind"
2294         target_exec_args="--track-origins=yes --leak-check=full"
2295     ;;
2296     msvc)
2297         # Check whether the current MSVC version needs the C99 converter.
2298         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2299         # support enough of C99 to build libav. Default to the new
2300         # behaviour if the regexp was unable to match anything, since this
2301         # successfully parses the version number of existing supported
2302         # versions that require the converter (MSVC 2010 and 2012).
2303         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2304         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2305             cc_default="cl"
2306         else
2307             cc_default="c99wrap cl"
2308         fi
2309         ld_default="link"
2310         nm_default="dumpbin -symbols"
2311         ar_default="lib"
2312         target_os_default="win32"
2313         # Use a relative path for TMPDIR. This makes sure all the
2314         # ffconf temp files are written with a relative path, avoiding
2315         # issues with msys/win32 path conversion for MSVC parameters
2316         # such as -Fo<file> or -out:<file>.
2317         TMPDIR=.
2318     ;;
2319     icl)
2320         cc_default="icl"
2321         ld_default="xilink"
2322         nm_default="dumpbin -symbols"
2323         ar_default="xilib"
2324         target_os_default="win32"
2325         TMPDIR=.
2326     ;;
2327     gcov)
2328         add_cflags  -fprofile-arcs -ftest-coverage
2329         add_ldflags -fprofile-arcs -ftest-coverage
2330     ;;
2331     hardened)
2332         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2333         add_ldflags -Wl,-z,relro -Wl,-z,now
2334     ;;
2335     ?*)
2336         die "Unknown toolchain $toolchain"
2337     ;;
2338 esac
2339
2340 set_default arch cc pkg_config sysinclude target_exec target_os
2341 enabled cross_compile || host_cc_default=$cc
2342 set_default host_cc
2343
2344 if ! $pkg_config --version >/dev/null 2>&1; then
2345     warn "$pkg_config not found, library detection may fail."
2346     pkg_config=false
2347 fi
2348
2349 exesuf() {
2350     case $1 in
2351         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2352     esac
2353 }
2354
2355 EXESUF=$(exesuf $target_os)
2356 HOSTEXESUF=$(exesuf $host_os)
2357
2358 # set temporary file name
2359 : ${TMPDIR:=$TEMPDIR}
2360 : ${TMPDIR:=$TMP}
2361 : ${TMPDIR:=/tmp}
2362
2363 if ! check_cmd mktemp -u XXXXXX; then
2364     # simple replacement for missing mktemp
2365     # NOT SAFE FOR GENERAL USE
2366     mktemp(){
2367         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2368     }
2369 fi
2370
2371 tmpfile(){
2372     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2373         (set -C; exec > $tmp) 2>/dev/null ||
2374         die "Unable to create temporary file in $TMPDIR."
2375     append TMPFILES $tmp
2376     eval $1=$tmp
2377 }
2378
2379 trap 'rm -f -- $TMPFILES' EXIT
2380
2381 tmpfile TMPASM .asm
2382 tmpfile TMPC   .c
2383 tmpfile TMPE   $EXESUF
2384 tmpfile TMPH   .h
2385 tmpfile TMPO   .o
2386 tmpfile TMPS   .S
2387 tmpfile TMPSH  .sh
2388 tmpfile TMPV   .ver
2389
2390 unset -f mktemp
2391
2392 chmod +x $TMPE
2393
2394 # make sure we can execute files in $TMPDIR
2395 cat > $TMPSH 2>> $logfile <<EOF
2396 #! /bin/sh
2397 EOF
2398 chmod +x $TMPSH >> $logfile 2>&1
2399 if ! $TMPSH >> $logfile 2>&1; then
2400     cat <<EOF
2401 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2402 variable to another directory and make sure that it is not mounted noexec.
2403 EOF
2404     die "Sanity test failed."
2405 fi
2406
2407 ccc_flags(){
2408     for flag; do
2409         case $flag in
2410             -std=c99)           echo -c99                       ;;
2411             -mcpu=*)            echo -arch ${flag#*=}           ;;
2412             -mieee)             echo -ieee                      ;;
2413             -O*|-fast)          echo $flag                      ;;
2414             -fno-math-errno)    echo -assume nomath_errno       ;;
2415             -g)                 echo -g3                        ;;
2416             -Wall)              echo -msg_enable level2         ;;
2417             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2418             -Wl,*)              echo $flag                      ;;
2419             -f*|-W*)                                            ;;
2420             *)                  echo $flag                      ;;
2421         esac
2422    done
2423 }
2424
2425 cparser_flags(){
2426     for flag; do
2427         case $flag in
2428             -Wno-switch)             echo -Wno-switch-enum ;;
2429             -Wno-format-zero-length) ;;
2430             -Wdisabled-optimization) ;;
2431             -Wno-pointer-sign)       echo -Wno-other ;;
2432             *)                       echo $flag ;;
2433         esac
2434     done
2435 }
2436
2437 msvc_common_flags(){
2438     for flag; do
2439         case $flag in
2440             # In addition to specifying certain flags under the compiler
2441             # specific filters, they must be specified here as well or else the
2442             # generic catch all at the bottom will print the original flag.
2443             -Wall)                ;;
2444             -std=c99)             ;;
2445             # Common flags
2446             -fomit-frame-pointer) ;;
2447             -g)                   echo -Z7 ;;
2448             -fno-math-errno)      ;;
2449             -fno-common)          ;;
2450             -fno-signed-zeros)    ;;
2451             -fPIC)                ;;
2452             -mthumb)              ;;
2453             -march=*)             ;;
2454             -lz)                  echo zlib.lib ;;
2455             -lavifil32)           echo vfw32.lib ;;
2456             -lavicap32)           echo vfw32.lib user32.lib ;;
2457             -l*)                  echo ${flag#-l}.lib ;;
2458             *)                    echo $flag ;;
2459         esac
2460     done
2461 }
2462
2463 msvc_flags(){
2464     msvc_common_flags "$@"
2465     for flag; do
2466         case $flag in
2467             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2468                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2469                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2470                                        -wd4273 ;;
2471         esac
2472     done
2473 }
2474
2475 icl_flags(){
2476     msvc_common_flags "$@"
2477     for flag; do
2478         case $flag in
2479             # Despite what Intel's documentation says -Wall, which is supported
2480             # on Windows, does enable remarks so disable them here.
2481             -Wall)                echo $flag -Qdiag-disable:remark ;;
2482             -std=c99)             echo -Qstd=c99 ;;
2483         esac
2484     done
2485 }
2486
2487 pgi_flags(){
2488     for flag; do
2489         case $flag in
2490             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2491             -fomit-frame-pointer) echo -Mnoframe ;;
2492             -g)                   echo -gopt ;;
2493             *)                    echo $flag ;;
2494         esac
2495     done
2496 }
2497
2498 suncc_flags(){
2499     for flag; do
2500         case $flag in
2501             -march=*|-mcpu=*)
2502                 case "${flag#*=}" in
2503                     native)                   echo -xtarget=native       ;;
2504                     v9|niagara)               echo -xarch=sparc          ;;
2505                     ultrasparc)               echo -xarch=sparcvis       ;;
2506                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2507                     i586|pentium)             echo -xchip=pentium        ;;
2508                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2509                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2510                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2511                     pentium4*)          echo -xtarget=pentium4           ;;
2512                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2513                     *-sse3)             echo -xarch=sse3                 ;;
2514                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2515                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2516                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2517                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2518                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2519                     k8|opteron|athlon64|athlon-fx)
2520                                                echo -xarch=sse2a         ;;
2521                     athlon*)                   echo -xarch=pentium_proa  ;;
2522                 esac
2523                 ;;
2524             -std=c99)             echo -xc99              ;;
2525             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2526             -fPIC)                echo -KPIC -xcode=pic32 ;;
2527             -W*,*)                echo $flag              ;;
2528             -f*-*|-W*|-mimpure-text)                      ;;
2529             -shared)              echo -G                 ;;
2530             *)                    echo $flag              ;;
2531         esac
2532     done
2533 }
2534
2535 tms470_flags(){
2536     for flag; do
2537         case $flag in
2538             -march=*|-mcpu=*)
2539                 case "${flag#*=}" in
2540                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2541                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2542                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2543                     armv6*|arm11*)          echo -mv=6   ;;
2544                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2545                                             echo -mv=5e  ;;
2546                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2547                 esac
2548                 ;;
2549             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2550             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2551             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2552             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2553             -msoft-float)   echo --float_support=vfplib       ;;
2554             -O[0-3]|-mf=*)  echo $flag                        ;;
2555             -g)             echo -g -mn                       ;;
2556             -pds=*)         echo $flag                        ;;
2557             -D*|-I*)        echo $flag                        ;;
2558             --gcc|--abi=*)  echo $flag                        ;;
2559             -me)            echo $flag                        ;;
2560         esac
2561     done
2562 }
2563
2564 probe_cc(){
2565     pfx=$1
2566     _cc=$2
2567
2568     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2569     unset _ld_o _ldflags _ld_lib _ld_path
2570     unset _depflags _DEPCMD _DEPFLAGS
2571     _flags_filter=echo
2572
2573     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2574         _type=llvm_gcc
2575         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2576         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2577         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2578         _cflags_speed='-O3'
2579         _cflags_size='-Os'
2580     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2581         _type=gcc
2582         gcc_version=$($_cc --version | head -n1)
2583         gcc_basever=$($_cc -dumpversion)
2584         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2585         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2586         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2587         if ! $_cc -dumpversion | grep -q '^2\.'; then
2588             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2589         fi
2590         _cflags_speed='-O3'
2591         _cflags_size='-Os'
2592     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2593         _type=icc
2594         _ident=$($_cc --version | head -n1)
2595         _depflags='-MMD'
2596         _cflags_speed='-O3'
2597         _cflags_size='-Os'
2598         _cflags_noopt='-O1'
2599     elif $_cc -v 2>&1 | grep -q xlc; then
2600         _type=xlc
2601         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2602         _cflags_speed='-O5'
2603         _cflags_size='-O5 -qcompact'
2604     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2605         _type=ccc
2606         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2607         _DEPFLAGS='-M'
2608         _cflags_speed='-fast'
2609         _cflags_size='-O1'
2610         _flags_filter=ccc_flags
2611     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2612         test -d "$sysroot" || die "No valid sysroot specified."
2613         _type=armcc
2614         _ident=$($_cc --vsn | head -n1)
2615         armcc_conf="$PWD/armcc.conf"
2616         $_cc --arm_linux_configure                 \
2617              --arm_linux_config_file="$armcc_conf" \
2618              --configure_sysroot="$sysroot"        \
2619              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2620              die "Error creating armcc configuration file."
2621         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2622         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2623         as_default="${cross_prefix}gcc"
2624         _depflags='-MMD'
2625         _cflags_speed='-O3'
2626         _cflags_size='-Os'
2627     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2628         _type=tms470
2629         _ident=$($_cc -version | head -n1 | tr -s ' ')
2630         _flags='--gcc --abi=eabi -me'
2631         _cc_e='-ppl -fe=$@'
2632         _cc_o='-fe=$@'
2633         _depflags='-ppa -ppd=$(@:.o=.d)'
2634         _cflags_speed='-O3 -mf=5'
2635         _cflags_size='-O3 -mf=2'
2636         _flags_filter=tms470_flags
2637     elif $_cc -v 2>&1 | grep -q clang; then
2638         _type=clang
2639         _ident=$($_cc --version | head -n1)
2640         _depflags='-MMD'
2641         _cflags_speed='-O3'
2642         _cflags_size='-Os'
2643     elif $_cc -V 2>&1 | grep -q Sun; then
2644         _type=suncc
2645         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2646         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2647         _DEPFLAGS='-xM1 -xc99'
2648         _ldflags='-std=c99'
2649         _cflags_speed='-O5'
2650         _cflags_size='-O5 -xspace'
2651         _flags_filter=suncc_flags
2652     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2653         _type=pathscale
2654         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2655         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2656         _cflags_speed='-O2'
2657         _cflags_size='-Os'
2658         _flags_filter='filter_out -Wdisabled-optimization'
2659     elif $_cc -v 2>&1 | grep -q Open64; then
2660         _type=open64
2661         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2662         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2663         _cflags_speed='-O2'
2664         _cflags_size='-Os'
2665         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2666     elif $_cc -V 2>&1 | grep -q Portland; then
2667         _type=pgi
2668         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2669         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2670         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2671         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2672         _cflags_noopt="-O1"
2673         _flags_filter=pgi_flags
2674     elif $_cc 2>&1 | grep -q Microsoft; then
2675         _type=msvc
2676         _ident=$($cc 2>&1 | head -n1)
2677         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2678         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2679         _cflags_speed="-O2"
2680         _cflags_size="-O1"
2681         if $_cc 2>&1 | grep -q Linker; then
2682             _ld_o='-out:$@'
2683         else
2684             _ld_o='-Fe$@'
2685         fi
2686         _cc_o='-Fo$@'
2687         _cc_e='-P -Fi$@'
2688         _flags_filter=msvc_flags
2689         _ld_lib='lib%.a'
2690         _ld_path='-libpath:'
2691         _flags='-nologo'
2692         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2693         if [ $pfx = hostcc ]; then
2694             append _cflags -Dsnprintf=_snprintf
2695         fi
2696     elif $_cc 2>&1 | grep -q Intel; then
2697         _type=icl
2698         _ident=$($cc 2>&1 | head -n1)
2699         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2700         # Not only is O3 broken on 13.x+ but it is slower on all previous
2701         # versions (tested) as well.
2702         _cflags_speed="-O2"
2703         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2704         if $_cc 2>&1 | grep -q Linker; then
2705             _ld_o='-out:$@'
2706         else
2707             _ld_o='-Fe$@'
2708         fi
2709         _cc_o='-Fo$@'
2710         _cc_e='-P'
2711         _flags_filter=icl_flags
2712         _ld_lib='lib%.a'
2713         _ld_path='-libpath:'
2714         # -Qdiag-error to make icl error when seeing certain unknown arguments
2715         _flags='-nologo -Qdiag-error:4044,10157'
2716         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2717         # with MSVC which enables it by default.
2718         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2719         if [ $pfx = hostcc ]; then
2720             append _cflags -Dsnprintf=_snprintf
2721         fi
2722     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2723         _type=cparser
2724         _ident=$($_cc --version | head -n1)
2725         _depflags='-MMD'
2726         _cflags_speed='-O4'
2727         _cflags_size='-O2'
2728         _flags_filter=cparser_flags
2729     fi
2730
2731     eval ${pfx}_type=\$_type
2732     eval ${pfx}_ident=\$_ident
2733 }
2734
2735 set_ccvars(){
2736     eval ${1}_C=\${_cc_c-\${${1}_C}}
2737     eval ${1}_E=\${_cc_e-\${${1}_E}}
2738     eval ${1}_O=\${_cc_o-\${${1}_O}}
2739
2740     if [ -n "$_depflags" ]; then
2741         eval ${1}_DEPFLAGS=\$_depflags
2742     else
2743         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2744         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2745         eval DEP${1}FLAGS=\$_flags
2746     fi
2747 }
2748
2749 probe_cc cc "$cc"
2750 cflags_filter=$_flags_filter
2751 cflags_speed=$_cflags_speed
2752 cflags_size=$_cflags_size
2753 cflags_noopt=$_cflags_noopt
2754 add_cflags $_flags $_cflags
2755 cc_ldflags=$_ldflags
2756 set_ccvars CC
2757
2758 probe_cc hostcc "$host_cc"
2759 host_cflags_filter=$_flags_filter
2760 add_host_cflags  $_flags $_cflags
2761 set_ccvars HOSTCC
2762
2763 test -n "$cc_type" && enable $cc_type ||
2764     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2765
2766 : ${as_default:=$cc}
2767 : ${dep_cc_default:=$cc}
2768 : ${ld_default:=$cc}
2769 : ${host_ld_default:=$host_cc}
2770 set_default ar as dep_cc ld host_ld
2771
2772 probe_cc as "$as"
2773 asflags_filter=$_flags_filter
2774 add_asflags $_flags $_cflags
2775 set_ccvars AS
2776
2777 probe_cc ld "$ld"
2778 ldflags_filter=$_flags_filter
2779 add_ldflags $_flags $_ldflags
2780 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2781 LD_O=${_ld_o-$LD_O}
2782 LD_LIB=${_ld_lib-$LD_LIB}
2783 LD_PATH=${_ld_path-$LD_PATH}
2784
2785 probe_cc hostld "$host_ld"
2786 host_ldflags_filter=$_flags_filter
2787 add_host_ldflags $_flags $_ldflags
2788 HOSTLD_O=${_ld_o-$HOSTLD_O}
2789
2790 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2791     probe_cc depcc "$dep_cc"
2792     CCDEP=${_DEPCMD:-$DEPCMD}
2793     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2794     DEPCCFLAGS=$_flags
2795 fi
2796
2797 if $ar 2>&1 | grep -q Microsoft; then
2798     arflags="-nologo"
2799     ar_o='-out:$@'
2800 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2801     arflags="rq"
2802     ar_o='$@'
2803 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2804     arflags='-Xany -r -c'
2805     ar_o='$@'
2806 else
2807     arflags="rc"
2808     ar_o='$@'
2809 fi
2810
2811 add_cflags $extra_cflags
2812 add_asflags $extra_cflags
2813
2814 if test -n "$sysroot"; then
2815     case "$cc_type" in
2816         gcc|llvm_gcc|clang)
2817             add_cppflags --sysroot="$sysroot"
2818             add_ldflags --sysroot="$sysroot"
2819         ;;
2820         tms470)
2821             add_cppflags -I"$sysinclude"
2822             add_ldflags  --sysroot="$sysroot"
2823         ;;
2824     esac
2825 fi
2826
2827 if test "$cpu" = host; then
2828     enabled cross_compile &&
2829         die "--cpu=host makes no sense when cross-compiling."
2830
2831     case "$cc_type" in
2832         gcc|llvm_gcc)
2833             check_native(){
2834                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2835                 sed -n "/cc1.*$1=/{
2836                             s/.*$1=\\([^ ]*\\).*/\\1/
2837                             p
2838                             q
2839                         }" $TMPE
2840             }
2841             cpu=$(check_native -march || check_native -mcpu)
2842         ;;
2843     esac
2844
2845     test "${cpu:-host}" = host &&
2846         die "--cpu=host not supported with compiler $cc"
2847 fi
2848
2849 # Deal with common $arch aliases
2850 case "$arch" in
2851     aarch64|arm64)
2852         arch="aarch64"
2853     ;;
2854     arm*)
2855         arch="arm"
2856     ;;
2857     mips*|IP*)
2858         arch="mips"
2859     ;;
2860     parisc*|hppa*)
2861         arch="parisc"
2862     ;;
2863     "Power Macintosh"|ppc*|powerpc*)
2864         arch="ppc"
2865     ;;
2866     s390|s390x)
2867         arch="s390"
2868     ;;
2869     sh4|sh)
2870         arch="sh4"
2871     ;;
2872     sun4u|sparc*)
2873         arch="sparc"
2874     ;;
2875     tilegx|tile-gx)
2876         arch="tilegx"
2877     ;;
2878     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2879         arch="x86"
2880     ;;
2881 esac
2882
2883 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2884 enable $arch
2885
2886 # Add processor-specific flags
2887 if enabled aarch64; then
2888
2889     case $cpu in
2890         armv*)
2891             cpuflags="-march=$cpu"
2892         ;;
2893         *)
2894             cpuflags="-mcpu=$cpu"
2895         ;;
2896     esac
2897
2898 elif enabled alpha; then
2899
2900     cpuflags="-mcpu=$cpu"
2901
2902 elif enabled arm; then
2903
2904     check_arm_arch() {
2905         check_cpp_condition stddef.h \
2906             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2907             $cpuflags
2908     }
2909
2910     probe_arm_arch() {
2911         if   check_arm_arch 4;        then echo armv4;
2912         elif check_arm_arch 4T;       then echo armv4t;
2913         elif check_arm_arch 5;        then echo armv5;
2914         elif check_arm_arch 5E;       then echo armv5e;
2915         elif check_arm_arch 5T;       then echo armv5t;
2916         elif check_arm_arch 5TE;      then echo armv5te;
2917         elif check_arm_arch 5TEJ;     then echo armv5te;
2918         elif check_arm_arch 6;        then echo armv6;
2919         elif check_arm_arch 6J;       then echo armv6j;
2920         elif check_arm_arch 6K;       then echo armv6k;
2921         elif check_arm_arch 6Z;       then echo armv6z;
2922         elif check_arm_arch 6ZK;      then echo armv6zk;
2923         elif check_arm_arch 6T2;      then echo armv6t2;
2924         elif check_arm_arch 7;        then echo armv7;
2925         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2926         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2927         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2928         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2929         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2930         fi
2931     }
2932
2933     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2934
2935     case $cpu in
2936         armv*)
2937             cpuflags="-march=$cpu"
2938             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2939         ;;
2940         *)
2941             cpuflags="-mcpu=$cpu"
2942             case $cpu in
2943                 cortex-a*)                               subarch=armv7a  ;;
2944                 cortex-r*)                               subarch=armv7r  ;;
2945                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2946                 arm11*)                                  subarch=armv6   ;;
2947                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2948                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2949                 *)                             subarch=$(probe_arm_arch) ;;
2950             esac
2951         ;;
2952     esac
2953
2954     case "$subarch" in
2955         armv5t*)    enable fast_clz                ;;
2956         armv[6-8]*) enable fast_clz fast_unaligned ;;
2957     esac
2958
2959 elif enabled avr32; then
2960
2961     case $cpu in
2962         ap7[02]0[0-2])
2963             subarch="avr32_ap"
2964             cpuflags="-mpart=$cpu"
2965         ;;
2966         ap)
2967             subarch="avr32_ap"
2968             cpuflags="-march=$cpu"
2969         ;;
2970         uc3[ab]*)
2971             subarch="avr32_uc"
2972             cpuflags="-mcpu=$cpu"
2973         ;;
2974         uc)
2975             subarch="avr32_uc"
2976             cpuflags="-march=$cpu"
2977         ;;
2978     esac
2979
2980 elif enabled bfin; then
2981
2982     cpuflags="-mcpu=$cpu"
2983
2984 elif enabled mips; then
2985
2986     cpuflags="-march=$cpu"
2987
2988 elif enabled ppc; then
2989
2990     case $(tolower $cpu) in
2991         601|ppc601|powerpc601)
2992             cpuflags="-mcpu=601"
2993             disable altivec
2994         ;;
2995         603*|ppc603*|powerpc603*)
2996             cpuflags="-mcpu=603"
2997             disable altivec
2998         ;;
2999         604*|ppc604*|powerpc604*)
3000             cpuflags="-mcpu=604"
3001             disable altivec
3002         ;;
3003         g3|75*|ppc75*|powerpc75*)
3004             cpuflags="-mcpu=750"
3005             disable altivec
3006         ;;
3007         g4|745*|ppc745*|powerpc745*)
3008             cpuflags="-mcpu=7450"
3009         ;;
3010         74*|ppc74*|powerpc74*)
3011             cpuflags="-mcpu=7400"
3012         ;;
3013         g5|970|ppc970|powerpc970)
3014             cpuflags="-mcpu=970"
3015         ;;
3016         power[3-7]*)
3017             cpuflags="-mcpu=$cpu"
3018         ;;
3019         cell)
3020             cpuflags="-mcpu=cell"
3021             enable ldbrx
3022         ;;
3023         e500mc)
3024             cpuflags="-mcpu=e500mc"
3025             disable altivec
3026         ;;
3027         e500v2)
3028             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3029             disable altivec
3030         ;;
3031         e500)
3032             cpuflags="-mcpu=8540 -mhard-float"
3033             disable altivec
3034         ;;
3035     esac
3036
3037 elif enabled sparc; then
3038
3039     case $cpu in
3040         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3041             cpuflags="-mcpu=$cpu"
3042             disable vis
3043         ;;
3044         ultrasparc*|niagara[234])
3045             cpuflags="-mcpu=$cpu"
3046         ;;
3047     esac
3048
3049 elif enabled x86; then
3050
3051     case $cpu in
3052         i[345]86|pentium)
3053             cpuflags="-march=$cpu"
3054             disable mmx
3055         ;;
3056         # targets that do NOT support nopl and conditional mov (cmov)
3057         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3058             cpuflags="-march=$cpu"
3059             disable i686
3060         ;;
3061         # targets that do support nopl and conditional mov (cmov)
3062         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3063             cpuflags="-march=$cpu"
3064             enable i686
3065             enable fast_cmov
3066         ;;
3067         # targets that do support conditional mov but on which it's slow
3068         pentium4|pentium4m|prescott|nocona)
3069             cpuflags="-march=$cpu"
3070             enable i686
3071             disable fast_cmov
3072         ;;
3073     esac
3074
3075 fi
3076
3077 if [ "$cpu" != generic ]; then
3078     add_cflags  $cpuflags
3079     add_asflags $cpuflags
3080 fi
3081
3082 # compiler sanity check
3083 check_exec <<EOF
3084 int main(void){ return 0; }
3085 EOF
3086 if test "$?" != 0; then
3087     echo "$cc is unable to create an executable file."
3088     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3089         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3090         echo "Only do this if you know what cross compiling means."
3091     fi
3092     die "C compiler test failed."
3093 fi
3094
3095 add_cppflags -D_ISOC99_SOURCE
3096 check_cflags -std=c99
3097 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3098 #include <stdlib.h>
3099 EOF
3100 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3101 #include <stdlib.h>
3102 EOF
3103
3104 check_host_cflags -std=c99
3105 check_host_cflags -Wall
3106
3107 check_64bit(){
3108     arch32=$1
3109     arch64=$2
3110     expr=$3
3111     check_code cc "" "int test[2*($expr) - 1]" &&
3112         subarch=$arch64 || subarch=$arch32
3113 }
3114
3115 case "$arch" in
3116     aarch64|alpha|ia64)
3117         spic=$shared
3118     ;;
3119     mips)
3120         check_64bit mips mips64 '_MIPS_SIM > 1'
3121         spic=$shared
3122     ;;
3123     parisc)
3124         check_64bit parisc parisc64 'sizeof(void *) > 4'
3125         spic=$shared
3126     ;;
3127     ppc)
3128         check_64bit ppc ppc64 'sizeof(void *) > 4'
3129         spic=$shared
3130     ;;
3131     sparc)
3132         check_64bit sparc sparc64 'sizeof(void *) > 4'
3133         spic=$shared
3134     ;;
3135     x86)
3136         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3137         if test "$subarch" = "x86_64"; then
3138             spic=$shared
3139         fi
3140     ;;
3141 esac
3142
3143 enable $subarch
3144 enabled spic && enable_weak pic
3145
3146 # OS specific
3147 case $target_os in
3148     aix)
3149         SHFLAGS=-shared
3150         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3151         enabled shared && add_ldflags -Wl,-brtl
3152         ;;
3153     haiku)
3154         prefix_default="/boot/common"
3155         network_extralibs="-lnetwork"
3156         host_libs=
3157         ;;
3158     sunos)
3159         SHFLAGS='-shared -Wl,-h,$$(@F)'
3160         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3161         network_extralibs="-lsocket -lnsl"
3162         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3163         # When using suncc to build, the Solaris linker will mark
3164         # an executable with each instruction set encountered by
3165         # the Solaris assembler.  As our libraries contain their own
3166         # guards for processor-specific code, instead suppress
3167         # generation of the HWCAPS ELF section on Solaris x86 only.
3168         enabled_all suncc x86 &&
3169             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3170             add_ldflags -Wl,-M,mapfile
3171         nm_default='nm -P -g'
3172         ;;
3173     netbsd)
3174         disable symver
3175         oss_indev_extralibs="-lossaudio"
3176         oss_outdev_extralibs="-lossaudio"
3177         ;;
3178     openbsd|bitrig)
3179         disable symver
3180         SHFLAGS='-shared'
3181         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3182         SLIB_INSTALL_LINKS=
3183         oss_indev_extralibs="-lossaudio"
3184         oss_outdev_extralibs="-lossaudio"
3185         ;;
3186     dragonfly)
3187         disable symver
3188         ;;
3189     freebsd)
3190         ;;
3191     bsd/os)
3192         add_extralibs -lpoll -lgnugetopt
3193         ;;
3194     darwin)
3195         gas="gas-preprocessor.pl $cc"
3196         enabled ppc && add_asflags -force_cpusubtype_ALL
3197         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3198         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3199         add_ldflags -Wl,-dynamic,-search_paths_first
3200         SLIBSUF=".dylib"
3201         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3202         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3203         objformat="macho"
3204         enabled x86_64 && objformat="macho64"
3205         enabled_any pic shared ||
3206             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3207         ;;
3208     mingw32*)
3209         if test $target_os = "mingw32ce"; then
3210             disable network
3211         else
3212             target_os=mingw32
3213         fi
3214         LIBTARGET=i386
3215         if enabled x86_64; then
3216             LIBTARGET="i386:x86-64"
3217         elif enabled arm; then
3218             LIBTARGET=arm-wince
3219         fi
3220         check_ldflags -Wl,--nxcompat
3221         check_ldflags -Wl,--dynamicbase
3222         shlibdir_default="$bindir_default"
3223         SLIBPREF=""
3224         SLIBSUF=".dll"
3225         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3226         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3227         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3228         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3229         SLIB_INSTALL_LINKS=
3230         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3231         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3232         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3233         objformat="win32"
3234         dlltool="${cross_prefix}dlltool"
3235         ranlib=:
3236         enable dos_paths
3237         ;;
3238     win32|win64)
3239         disable symver
3240         if enabled shared; then
3241             # Link to the import library instead of the normal static library
3242             # for shared libs.
3243             LD_LIB='%.lib'
3244             # Cannot build both shared and static libs with MSVC or icl.
3245             disable static
3246         fi
3247         shlibdir_default="$bindir_default"
3248         SLIBPREF=""
3249         SLIBSUF=".dll"
3250         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3251         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3252         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3253         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3254         SLIB_INSTALL_LINKS=
3255         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3256         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3257         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3258         objformat="win32"
3259         ranlib=:
3260         enable dos_paths
3261         ;;
3262     cygwin*)
3263         target_os=cygwin
3264         shlibdir_default="$bindir_default"
3265         SLIBPREF="cyg"
3266         SLIBSUF=".dll"
3267         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3268         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3269         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3270         SLIB_INSTALL_LINKS=
3271         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3272         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3273         objformat="win32"
3274         enable dos_paths
3275         ;;
3276     *-dos|freedos|opendos)
3277         network_extralibs="-lsocket"
3278         objformat="coff"
3279         enable dos_paths
3280         add_cppflags -U__STRICT_ANSI__
3281         ;;
3282     linux)
3283         enable dv1394
3284         ;;
3285     irix*)
3286         target_os=irix
3287         ranlib="echo ignoring ranlib"
3288         ;;
3289     os/2*)
3290         ln_s="cp -f"
3291         objformat="aout"
3292         add_cppflags -D_GNU_SOURCE
3293         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3294         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3295         LIBSUF="_s.a"
3296         SLIBPREF=""
3297         SLIBSUF=".dll"
3298         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3299         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3300         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3301             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3302             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3303             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3304             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3305             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3306         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3307             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3308         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3309         enable dos_paths
3310         ;;
3311     gnu/kfreebsd)
3312         add_cppflags -D_BSD_SOURCE
3313         ;;
3314     gnu)
3315         ;;
3316     qnx)
3317         add_cppflags -D_QNX_SOURCE
3318         network_extralibs="-lsocket"
3319         ;;
3320     symbian)
3321         SLIBSUF=".dll"
3322         enable dos_paths
3323         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3324         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3325         add_ldflags -Wl,--target1-abs,--no-undefined \
3326                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3327                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3328         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3329                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3330                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3331         ;;
3332     osf1)
3333         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3334         ;;
3335     minix)
3336         ;;
3337     plan9)
3338         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3339                      -D_REENTRANT_SOURCE        \
3340                      -D_RESEARCH_SOURCE         \
3341                      -DFD_SETSIZE=96            \
3342                      -DHAVE_SOCK_OPTS
3343         add_compat strtod.o strtod=avpriv_strtod
3344         network_extralibs='-lbsd'
3345         exeobjs=compat/plan9/main.o
3346         disable avserver
3347         cp_f='cp'
3348         ;;
3349     none)
3350         ;;
3351     *)
3352         die "Unknown OS '$target_os'."
3353         ;;
3354 esac
3355
3356 # determine libc flavour
3357
3358 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3359 if check_cpp_condition features.h "defined __UCLIBC__"; then
3360     libc_type=uclibc
3361     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3362 elif check_cpp_condition features.h "defined __GLIBC__"; then
3363     libc_type=glibc
3364     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3365 # MinGW headers can be installed on Cygwin, so check for newlib first.
3366 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3367     libc_type=newlib
3368     add_cppflags -U__STRICT_ANSI__
3369 elif check_header _mingw.h; then
3370     libc_type=mingw
3371     check_cpp_condition _mingw.h \
3372         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3373             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3374         die "ERROR: MinGW runtime version must be >= 3.15."
3375     add_cppflags -U__STRICT_ANSI__
3376 elif check_func_headers stdlib.h _get_doserrno; then
3377     libc_type=msvcrt
3378     add_compat strtod.o strtod=avpriv_strtod
3379     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3380                                  _snprintf=avpriv_snprintf  \
3381                                  vsnprintf=avpriv_vsnprintf
3382     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3383     # 0x601 by default unless something else is set by the user.
3384     # This can easily lead to us detecting functions only present
3385     # in such new versions and producing binaries requiring windows 7.0.
3386     # Therefore explicitly set the default to XP unless the user has
3387     # set something else on the command line.
3388     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3389 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3390     libc_type=klibc
3391 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3392     libc_type=bionic
3393     add_compat strtod.o strtod=avpriv_strtod
3394 fi
3395
3396 test -n "$libc_type" && enable $libc_type
3397
3398 # hacks for compiler/libc/os combinations
3399
3400 if enabled_all tms470 glibc; then
3401     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3402     add_cppflags -D__USER_LABEL_PREFIX__=
3403     add_cppflags -D__builtin_memset=memset
3404     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3405     add_cflags   -pds=48    # incompatible redefinition of macro
3406 fi
3407
3408 if enabled_all ccc glibc; then
3409     add_ldflags -Wl,-z,now  # calls to libots crash without this
3410 fi
3411
3412 esc(){
3413     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3414 }
3415
3416 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3417
3418 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3419
3420 set_default $PATHS_LIST
3421 set_default nm
3422
3423 # we need to build at least one lib type
3424 if ! enabled_any static shared; then
3425     cat <<EOF
3426 At least one library type must be built.
3427 Specify --enable-static to build the static libraries or --enable-shared to
3428 build the shared libraries as well. To only build the shared libraries specify
3429 --disable-static in addition to --enable-shared.
3430 EOF
3431     exit 1;
3432 fi
3433
3434 die_license_disabled() {
3435     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3436 }
3437
3438 die_license_disabled gpl libcdio
3439 die_license_disabled gpl libx264
3440 die_license_disabled gpl libxavs
3441 die_license_disabled gpl libxvid
3442 die_license_disabled gpl x11grab
3443
3444 die_license_disabled nonfree libfaac
3445 die_license_disabled nonfree libfdk_aac
3446 die_license_disabled nonfree openssl
3447
3448 die_license_disabled version3 libopencore_amrnb
3449 die_license_disabled version3 libopencore_amrwb
3450 die_license_disabled version3 libvo_aacenc
3451 die_license_disabled version3 libvo_amrwbenc
3452
3453 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3454
3455 disabled optimizations || check_cflags -fomit-frame-pointer
3456
3457 enable_weak_pic() {
3458     disabled pic && return
3459     enable pic
3460     add_cppflags -DPIC
3461     case "$target_os" in
3462     mingw*|cygwin*)
3463         ;;
3464     *)
3465         add_cflags -fPIC
3466         ;;
3467     esac
3468     add_asflags  -fPIC
3469 }
3470
3471 enabled pic && enable_weak_pic
3472
3473 check_cc <<EOF || die "Symbol mangling check failed."
3474 int ff_extern;
3475 EOF
3476 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3477 extern_prefix=${sym%%ff_extern*}
3478
3479 check_cc <<EOF && enable_weak inline_asm
3480 void foo(void) { __asm__ volatile ("" ::); }
3481 EOF
3482
3483 _restrict=
3484 for restrict_keyword in restrict __restrict__ __restrict; do
3485     check_cc <<EOF && _restrict=$restrict_keyword && break
3486 void foo(char * $restrict_keyword p);
3487 EOF
3488 done
3489
3490 check_cc <<EOF && enable pragma_deprecated
3491 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3492 EOF
3493
3494 check_cc <<EOF && enable attribute_packed
3495 struct { int x; } __attribute__((packed)) x;
3496 EOF
3497
3498 check_cc <<EOF && enable attribute_may_alias
3499 union { int x; } __attribute__((may_alias)) x;
3500 EOF
3501
3502 check_cc <<EOF || die "endian test failed"
3503 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3504 EOF
3505 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3506
3507 check_inline_asm inline_asm_labels '"1:\n"'
3508
3509 if enabled alpha; then
3510
3511     check_cflags -mieee
3512
3513 elif enabled arm; then
3514
3515     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3516     enabled thumb && check_cflags -mthumb || check_cflags -marm
3517     nogas=die
3518
3519     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3520         enable vfp_args
3521     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3522         case "${cross_prefix:-$cc}" in
3523             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3524             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3525 __asm__ (".eabi_attribute 28, 1");
3526 int main(void) { return 0; }
3527 EOF
3528         esac
3529         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3530     fi
3531
3532     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3533     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3534     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3535     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3536     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3537     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3538
3539     [ $target_os = linux ] ||
3540         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3541             $ARCH_EXT_LIST_ARM
3542
3543     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3544     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3545
3546     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3547
3548 elif enabled mips; then
3549
3550     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3551
3552 elif enabled parisc; then
3553
3554     if enabled gcc; then
3555         case $($cc -dumpversion) in
3556             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3557         esac
3558     fi
3559
3560 elif enabled ppc; then
3561
3562     enable local_aligned_8 local_aligned_16
3563
3564     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3565     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3566     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3567     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3568
3569     # AltiVec flags: The FSF version of GCC differs from the Apple version
3570     if enabled altivec; then
3571         nogas=warn
3572         check_cflags -maltivec -mabi=altivec &&
3573         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3574         check_cflags -faltivec
3575
3576         # check if our compiler supports Motorola AltiVec C API
3577         check_cc <<EOF || disable altivec
3578 $inc_altivec_h
3579 int main(void) {
3580     vector signed int v1 = (vector signed int) { 0 };
3581     vector signed int v2 = (vector signed int) { 1 };
3582     v1 = vec_add(v1, v2);
3583     return 0;
3584 }
3585 EOF
3586
3587         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3588     fi
3589
3590 elif enabled sparc; then
3591
3592     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3593
3594 elif enabled x86; then
3595
3596     check_builtin rdtsc    intrin.h   "__rdtsc()"
3597     check_builtin mm_empty mmintrin.h "_mm_empty()"
3598
3599     enable local_aligned_8 local_aligned_16
3600
3601     # check whether EBP is available on x86
3602     # As 'i' is stored on the stack, this program will crash
3603     # if the base pointer is used to access it because the
3604     # base pointer is cleared in the inline assembly code.
3605     check_exec_crash <<EOF && enable ebp_available
3606 volatile int i=0;
3607 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3608 return i;
3609 EOF
3610
3611     # check whether EBX is available on x86
3612     check_inline_asm ebx_available '""::"b"(0)' &&
3613         check_inline_asm ebx_available '"":::"%ebx"'
3614
3615     # check whether xmm clobbers are supported
3616     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3617
3618     # check whether binutils is new enough to compile SSSE3/MMXEXT
3619     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3620     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3621
3622     if ! disabled_any asm mmx yasm; then
3623         if check_cmd $yasmexe --version; then
3624             enabled x86_64 && yasm_extra="-m amd64"
3625             yasm_debug="-g dwarf2"
3626         elif check_cmd nasm -v; then
3627             yasmexe=nasm
3628             yasm_debug="-g -F dwarf"
3629             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3630         fi
3631
3632         YASMFLAGS="-f $objformat $yasm_extra"
3633         enabled pic               && append YASMFLAGS "-DPIC"
3634         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3635         case "$objformat" in
3636             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3637         esac
3638
3639         check_yasm "movbe ecx, [5]" && enable yasm ||
3640             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3641         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3642         check_yasm "CPU amdnop" && enable cpunop
3643     fi
3644
3645     case "$cpu" in
3646         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3647             disable fast_clz
3648         ;;
3649     esac
3650
3651 fi
3652
3653 if enabled asm; then
3654     as=${gas:=$as}
3655     check_as <<EOF && enable gnu_as || \
3656         $nogas "GNU assembler not found, install gas-preprocessor"
3657 .macro m n
3658 \n: .int 0
3659 .endm
3660 m x
3661 EOF
3662 fi
3663
3664 check_ldflags -Wl,--as-needed
3665
3666 if check_func dlopen; then
3667     ldl=
3668 elif check_func dlopen -ldl; then
3669     ldl=-ldl
3670 fi
3671
3672 if ! disabled network; then
3673     check_type "sys/types.h sys/socket.h" socklen_t
3674     check_type netdb.h "struct addrinfo"
3675     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3676     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3677     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3678     check_type netinet/in.h "struct sockaddr_in6"
3679     check_type poll.h "struct pollfd"
3680     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3681     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3682     check_type netinet/sctp.h "struct sctp_event_subscribe"
3683     check_func getaddrinfo $network_extralibs
3684     check_func getservbyport $network_extralibs
3685     # Prefer arpa/inet.h over winsock2
3686     if check_header arpa/inet.h ; then
3687         check_func closesocket
3688     elif check_header winsock2.h ; then
3689         check_func_headers winsock2.h closesocket -lws2 &&
3690             network_extralibs="-lws2" ||
3691         { check_func_headers winsock2.h closesocket -lws2_32 &&
3692             network_extralibs="-lws2_32"; }
3693         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3694         check_type ws2tcpip.h socklen_t
3695         check_type ws2tcpip.h "struct addrinfo"
3696         check_type ws2tcpip.h "struct group_source_req"
3697         check_type ws2tcpip.h "struct ip_mreq_source"
3698         check_type ws2tcpip.h "struct ipv6_mreq"
3699         check_type winsock2.h "struct pollfd"
3700         check_type ws2tcpip.h "struct sockaddr_in6"
3701         check_type ws2tcpip.h "struct sockaddr_storage"
3702         check_struct winsock2.h "struct sockaddr" sa_len
3703     else
3704         disable network
3705     fi
3706 fi
3707
3708 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3709 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3710
3711 check_func  fcntl
3712 check_func  fork
3713 check_func_headers stdlib.h getenv
3714 check_func  gethrtime
3715 check_func  getopt
3716 check_func  getrusage
3717 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3718 check_func  gettimeofday
3719 check_func  inet_aton $network_extralibs
3720 check_func  isatty
3721 check_func  localtime_r
3722 check_func  ${malloc_prefix}memalign            && enable memalign
3723 check_func  mkstemp
3724 check_func  mmap
3725 check_func  mprotect
3726 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3727 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3728 check_func  setrlimit
3729 check_func  strerror_r
3730 check_func  strptime
3731 check_func  strtok_r
3732 check_func  sched_getaffinity
3733 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3734 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3735 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3736 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3737 check_func  sysconf
3738 check_func  sysctl
3739 check_func  usleep
3740 check_func_headers io.h setmode
3741 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3742 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3743 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3744 check_func_headers windows.h GetProcessAffinityMask
3745 check_func_headers windows.h GetProcessTimes
3746 check_func_headers windows.h GetSystemTimeAsFileTime
3747 check_func_headers windows.h MapViewOfFile
3748 check_func_headers windows.h SetConsoleTextAttribute
3749 check_func_headers windows.h Sleep
3750 check_func_headers windows.h VirtualAlloc
3751
3752 check_header direct.h
3753 check_header dlfcn.h
3754 check_header dxva.h
3755 check_header dxva2api.h
3756 check_header io.h
3757 check_header malloc.h
3758 check_header poll.h
3759 check_header sys/mman.h
3760 check_header sys/param.h
3761 check_header sys/resource.h
3762 check_header sys/select.h
3763 check_header sys/time.h
3764 check_header sys/un.h
3765 check_header unistd.h
3766 check_header vdpau/vdpau.h
3767 check_header vdpau/vdpau_x11.h
3768 check_header VideoDecodeAcceleration/VDADecoder.h
3769 check_header windows.h
3770 check_header X11/extensions/XvMClib.h
3771
3772 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3773 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3774
3775 if ! disabled w32threads && ! enabled pthreads; then
3776     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3777 fi
3778
3779 # check for some common methods of building with pthread support
3780 # do this before the optional library checks as some of them require pthreads
3781 if ! disabled pthreads && ! enabled w32threads; then
3782     enable pthreads
3783     if check_func pthread_create; then
3784         :
3785     elif check_func pthread_create -pthread; then
3786         add_cflags -pthread
3787         add_extralibs -pthread
3788     elif check_func pthread_create -pthreads; then
3789         add_cflags -pthreads
3790         add_extralibs -pthreads
3791     elif check_func pthread_create -lpthreadGC2; then
3792         add_extralibs -lpthreadGC2
3793     elif ! check_lib pthread.h pthread_create -lpthread; then
3794         disable pthreads
3795     fi
3796 fi
3797
3798 for thread in $THREADS_LIST; do
3799     if enabled $thread; then
3800         test -n "$thread_type" &&
3801             die "ERROR: Only one thread type must be selected." ||
3802             thread_type="$thread"
3803     fi
3804 done
3805
3806 enabled sync_val_compare_and_swap && enable atomics_gcc
3807 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3808 enabled MemoryBarrier && enable atomics_win32
3809
3810 check_lib math.h sin -lm && LIBM="-lm"
3811 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3812
3813 atan2f_args=2
3814 ldexpf_args=2
3815 powf_args=2
3816
3817 for func in $MATH_FUNCS; do
3818     eval check_mathfunc $func \${${func}_args:-1}
3819 done
3820
3821 # these are off by default, so fail if requested and not available
3822 enabled avisynth          && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3823 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3824 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3825 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3826 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3827 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3828 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3829                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3830                                done || die "ERROR: libgsm not found"; }
3831 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3832 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3833 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3834 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3835 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3836 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3837 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3838 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3839 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3840 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3841 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3842 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3843 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3844 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3845 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3846 enabled libvpx            && {
3847     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3848                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3849     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3850                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3851     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3852     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3853 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3854 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3855                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3856                                die "ERROR: libx264 version must be >= 0.118."; }
3857 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3858 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3859 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3860                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3861                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3862                                die "ERROR: openssl not found"; }
3863
3864 if enabled gnutls; then
3865     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3866     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3867 fi
3868
3869 # libdc1394 check
3870 if enabled libdc1394; then
3871     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3872         enable libdc1394_2; } ||
3873     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3874         enable libdc1394_1; } ||
3875     die "ERROR: No version of libdc1394 found "
3876 fi
3877
3878 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3879     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3880     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3881     enable sdl
3882 fi
3883
3884 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
3885 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3886
3887 check_header linux/fb.h
3888 check_header linux/videodev2.h
3889 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3890
3891 check_header sys/videoio.h
3892
3893 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3894 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3895 # w32api 3.12 had it defined wrong
3896 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3897
3898 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3899 { check_header dev/bktr/ioctl_meteor.h &&
3900   check_header dev/bktr/ioctl_bt848.h; } ||
3901 { check_header machine/ioctl_meteor.h &&
3902   check_header machine/ioctl_bt848.h; } ||
3903 { check_header dev/video/meteor/ioctl_meteor.h &&
3904   check_header dev/video/bktr/ioctl_bt848.h; } ||
3905 check_header dev/ic/bt8xx.h
3906
3907 check_header sndio.h
3908 check_header sys/soundcard.h
3909 check_header soundcard.h
3910
3911 enabled_any alsa_indev alsa_outdev &&
3912     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3913
3914 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3915     check_func jack_port_get_latency_range -ljack
3916
3917 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3918
3919 if enabled libcdio; then
3920     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
3921     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3922 fi
3923
3924 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
3925
3926 enabled x11grab                                           &&
3927 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3928 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
3929 { enabled xlib || die "ERROR: Xlib not found"; }
3930
3931 enabled vdpau &&
3932     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3933     disable vdpau
3934
3935 enabled vdpau && enabled xlib &&
3936     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
3937     enable vdpau_x11
3938
3939 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3940
3941 # add some useful compiler flags if supported
3942 check_cflags -Wdeclaration-after-statement
3943 check_cflags -Wall
3944 check_cflags -Wdisabled-optimization
3945 check_cflags -Wpointer-arith
3946 check_cflags -Wredundant-decls
3947 check_cflags -Wcast-qual
3948 check_cflags -Wwrite-strings
3949 check_cflags -Wtype-limits
3950 check_cflags -Wundef
3951 check_cflags -Wmissing-prototypes
3952 check_cflags -Wstrict-prototypes
3953 enabled extra_warnings && check_cflags -Winline
3954
3955 check_disable_warning(){
3956     warning_flag=-W${1#-Wno-}
3957     test_cflags $warning_flag && add_cflags $1
3958 }
3959
3960 check_disable_warning -Wno-parentheses
3961 check_disable_warning -Wno-switch
3962 check_disable_warning -Wno-format-zero-length
3963 check_disable_warning -Wno-pointer-sign
3964
3965 # add some linker flags
3966 check_ldflags -Wl,--warn-common
3967 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3968 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3969
3970 enabled xmm_clobber_test &&
3971     check_ldflags -Wl,--wrap,avcodec_open2              \
3972                   -Wl,--wrap,avcodec_decode_audio4      \
3973                   -Wl,--wrap,avcodec_decode_video2      \
3974                   -Wl,--wrap,avcodec_decode_subtitle2   \
3975                   -Wl,--wrap,avcodec_encode_audio2      \
3976                   -Wl,--wrap,avcodec_encode_video2      \
3977                   -Wl,--wrap,avcodec_encode_subtitle    \
3978                   -Wl,--wrap,sws_scale ||
3979     disable xmm_clobber_test
3980
3981 echo "X{};" > $TMPV
3982 if test_ldflags -Wl,--version-script,$TMPV; then
3983     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3984     check_cc <<EOF && enable symver_asm_label
3985 void ff_foo(void) __asm__ ("av_foo@VERSION");
3986 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3987 EOF
3988     check_cc <<EOF && enable symver_gnu_asm
3989 __asm__(".symver ff_foo,av_foo@VERSION");
3990 void ff_foo(void) {}
3991 EOF
3992 fi
3993
3994 if [ -z "$optflags" ]; then
3995     if enabled small; then
3996         optflags=$cflags_size
3997     elif enabled optimizations; then
3998         optflags=$cflags_speed
3999     else
4000         optflags=$cflags_noopt
4001     fi
4002 fi
4003
4004 check_optflags(){
4005     check_cflags "$@"
4006     enabled lto && check_ldflags "$@"
4007 }
4008
4009
4010 if enabled lto; then
4011     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4012     check_cflags  -flto
4013     check_ldflags -flto $cpuflags
4014 fi
4015
4016 check_optflags $optflags
4017 check_optflags -fno-math-errno
4018 check_optflags -fno-signed-zeros
4019
4020 if enabled icc; then
4021     # Just warnings, no remarks
4022     check_cflags -w1
4023     # -wd: Disable following warnings
4024     # 144, 167, 556: -Wno-pointer-sign
4025     # 1292: attribute "foo" ignored
4026     # 1419: external declaration in primary source file
4027     # 10006: ignoring unknown option -fno-signed-zeros
4028     # 10148: ignoring unknown option -Wno-parentheses
4029     # 10156: ignoring option '-W'; no argument required
4030     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4031     # 11030: Warning unknown option --as-needed
4032     # 10156: ignoring option '-export'; no argument required
4033     check_ldflags -wd10156,11030
4034     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4035     enable ebp_available
4036     if enabled x86_32; then
4037         icc_version=$($cc -dumpversion)
4038         test ${icc_version%%.*} -ge 11 &&
4039             check_cflags -falign-stack=maintain-16-byte ||
4040             disable aligned_stack
4041     fi
4042 elif enabled ccc; then
4043     # disable some annoying warnings
4044     add_cflags -msg_disable bitnotint
4045     add_cflags -msg_disable mixfuncvoid
4046     add_cflags -msg_disable nonstandcast
4047     add_cflags -msg_disable unsupieee
4048 elif enabled gcc; then
4049     check_optflags -fno-tree-vectorize
4050     check_cflags -Werror=implicit-function-declaration
4051     check_cflags -Werror=missing-prototypes
4052     check_cflags -Werror=return-type
4053     check_cflags -Werror=declaration-after-statement
4054     check_cflags -Werror=vla
4055     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4056 elif enabled llvm_gcc; then
4057     check_cflags -mllvm -stack-alignment=16
4058 elif enabled clang; then
4059     check_cflags -mllvm -stack-alignment=16
4060     check_cflags -Qunused-arguments
4061     check_cflags -Werror=implicit-function-declaration
4062     check_cflags -Werror=missing-prototypes
4063     check_cflags -Werror=return-type
4064 elif enabled cparser; then
4065     add_cflags -Wno-missing-variable-declarations
4066     add_cflags -Wno-empty-statement
4067 elif enabled armcc; then
4068     # 2523: use of inline assembler is deprecated
4069     add_cflags -W${armcc_opt},--diag_suppress=2523
4070     add_cflags -W${armcc_opt},--diag_suppress=1207
4071     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4072     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4073     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4074     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4075 elif enabled tms470; then
4076     add_cflags -pds=824 -pds=837
4077 elif enabled pathscale; then
4078     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4079 elif enabled_any msvc icl; then
4080     enabled x86_32 && disable aligned_stack
4081     enabled_all x86_32 debug && add_cflags -Oy-
4082     enabled debug && add_ldflags -debug
4083     enable pragma_deprecated
4084     if enabled icl; then
4085         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4086         # (correctly) on icl 13.x.
4087         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4088             add_cflags -Qansi-alias
4089         # icl will pass the inline asm tests but inline asm is currently
4090         # not supported (build will fail)
4091         disable inline_asm
4092     fi
4093 fi
4094
4095 case $target_os in
4096     osf1)
4097         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4098     ;;
4099     plan9)
4100         add_cppflags -Dmain=plan9_main
4101     ;;
4102 esac
4103
4104 enabled_any $THREADS_LIST      && enable threads
4105 enabled_any $ATOMICS_LIST      && enable atomics_native
4106
4107 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4108
4109 check_deps $CONFIG_LIST       \
4110            $CONFIG_EXTRA      \
4111            $HAVE_LIST         \
4112            $ALL_COMPONENTS    \
4113
4114 ! enabled_any memalign posix_memalign aligned_malloc &&
4115     enabled_any $need_memalign && enable memalign_hack
4116
4117 echo "install prefix            $prefix"
4118 echo "source path               $source_path"
4119 echo "C compiler                $cc"
4120 echo "ARCH                      $arch ($cpu)"
4121 if test "$build_suffix" != ""; then
4122     echo "build suffix              $build_suffix"
4123 fi
4124 if test "$extra_version" != ""; then
4125     echo "version string suffix     $extra_version"
4126 fi
4127 echo "big-endian                ${bigendian-no}"
4128 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4129 if enabled x86; then
4130     echo "${yasmexe}                      ${yasm-no}"
4131     echo "MMX enabled               ${mmx-no}"
4132     echo "MMXEXT enabled            ${mmxext-no}"
4133     echo "3DNow! enabled            ${amd3dnow-no}"
4134     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4135     echo "SSE enabled               ${sse-no}"
4136     echo "SSSE3 enabled             ${ssse3-no}"
4137     echo "AVX enabled               ${avx-no}"
4138     echo "FMA4 enabled              ${fma4-no}"
4139     echo "i686 features enabled     ${i686-no}"
4140     echo "CMOV is fast              ${fast_cmov-no}"
4141     echo "EBX available             ${ebx_available-no}"
4142     echo "EBP available             ${ebp_available-no}"
4143 fi
4144 if enabled arm; then
4145     echo "ARMv5TE enabled           ${armv5te-no}"
4146     echo "ARMv6 enabled             ${armv6-no}"
4147     echo "ARMv6T2 enabled           ${armv6t2-no}"
4148     echo "VFP enabled               ${vfp-no}"
4149     echo "NEON enabled              ${neon-no}"
4150 fi
4151 if enabled ppc; then
4152     echo "AltiVec enabled           ${altivec-no}"
4153     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4154     echo "dcbzl available           ${dcbzl-no}"
4155 fi
4156 if enabled sparc; then
4157     echo "VIS enabled               ${vis-no}"
4158 fi
4159 echo "debug symbols             ${debug-no}"
4160 echo "optimize for size         ${small-no}"
4161 echo "optimizations             ${optimizations-no}"
4162 echo "static                    ${static-no}"
4163 echo "shared                    ${shared-no}"
4164 echo "new filter support        ${avfilter-no}"
4165 echo "network support           ${network-no}"
4166 echo "threading support         ${thread_type-no}"
4167 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4168 echo "SDL support               ${sdl-no}"
4169 test -n "$random_seed" &&
4170     echo "random seed               ${random_seed}"
4171 echo
4172
4173 echo "External libraries:"
4174 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4175 echo
4176
4177 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4178     echo "Enabled ${type}s:"
4179     eval list=\$$(toupper $type)_LIST
4180     print_enabled '_*' $list | print_3_columns
4181     echo
4182 done
4183
4184 license="LGPL version 2.1 or later"
4185 if enabled nonfree; then
4186     license="nonfree and unredistributable"
4187 elif enabled gplv3; then
4188     license="GPL version 3 or later"
4189 elif enabled lgplv3; then
4190     license="LGPL version 3 or later"
4191 elif enabled gpl; then
4192     license="GPL version 2 or later"
4193 fi
4194
4195 echo "License: $license"
4196
4197 echo "Creating config.mak and config.h..."
4198
4199 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4200
4201 config_files="$TMPH config.mak"
4202
4203 cat > config.mak <<EOF
4204 # Automatically generated by configure - do not modify!
4205 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4206 prefix=$prefix
4207 LIBDIR=\$(DESTDIR)$libdir
4208 SHLIBDIR=\$(DESTDIR)$shlibdir
4209 INCDIR=\$(DESTDIR)$incdir
4210 BINDIR=\$(DESTDIR)$bindir
4211 DATADIR=\$(DESTDIR)$datadir
4212 DOCDIR=\$(DESTDIR)$docdir
4213 MANDIR=\$(DESTDIR)$mandir
4214 SRC_PATH=$source_path
4215 CC_IDENT=$cc_ident
4216 ARCH=$arch
4217 CC=$cc
4218 AS=$as
4219 LD=$ld
4220 DEPCC=$dep_cc
4221 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4222 DEPAS=$as
4223 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4224 YASM=$yasmexe
4225 DEPYASM=$yasmexe
4226 AR=$ar
4227 ARFLAGS=$arflags
4228 AR_O=$ar_o
4229 RANLIB=$ranlib
4230 STRIP=$strip
4231 LN_S=$ln_s
4232 CPPFLAGS=$CPPFLAGS
4233 CFLAGS=$CFLAGS
4234 ASFLAGS=$ASFLAGS
4235 AS_C=$AS_C
4236 AS_O=$AS_O
4237 CC_C=$CC_C
4238 CC_E=$CC_E
4239 CC_O=$CC_O
4240 LD_O=$LD_O
4241 LD_LIB=$LD_LIB
4242 LD_PATH=$LD_PATH
4243 DLLTOOL=$dlltool
4244 LDFLAGS=$LDFLAGS
4245 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4246 YASMFLAGS=$YASMFLAGS
4247 BUILDSUF=$build_suffix
4248 FULLNAME=$FULLNAME
4249 LIBPREF=$LIBPREF
4250 LIBSUF=$LIBSUF
4251 LIBNAME=$LIBNAME
4252 SLIBPREF=$SLIBPREF
4253 SLIBSUF=$SLIBSUF
4254 EXESUF=$EXESUF
4255 EXTRA_VERSION=$extra_version
4256 CCDEP=$CCDEP
4257 CCDEP_FLAGS=$CCDEP_FLAGS
4258 ASDEP=$ASDEP
4259 ASDEP_FLAGS=$ASDEP_FLAGS
4260 CC_DEPFLAGS=$CC_DEPFLAGS
4261 AS_DEPFLAGS=$AS_DEPFLAGS
4262 HOSTCC=$host_cc
4263 HOSTLD=$host_ld
4264 HOSTCFLAGS=$host_cflags
4265 HOSTCPPFLAGS=$host_cppflags
4266 HOSTEXESUF=$HOSTEXESUF
4267 HOSTLDFLAGS=$host_ldflags
4268 HOSTLIBS=$host_libs
4269 DEPHOSTCC=$host_cc
4270 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4271 HOSTCCDEP=$HOSTCCDEP
4272 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4273 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4274 HOSTCC_C=$HOSTCC_C
4275 HOSTCC_O=$HOSTCC_O
4276 HOSTLD_O=$HOSTLD_O
4277 TARGET_EXEC=$target_exec $target_exec_args
4278 TARGET_PATH=$target_path
4279 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4280 LIBS-avplay=$sdl_libs
4281 CFLAGS-avplay=$sdl_cflags
4282 ZLIB=$($ldflags_filter -lz)
4283 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4284 EXTRALIBS=$extralibs
4285 COMPAT_OBJS=$compat_objs
4286 EXEOBJS=$exeobjs
4287 INSTALL=install
4288 LIBTARGET=${LIBTARGET}
4289 SLIBNAME=${SLIBNAME}
4290 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4291 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4292 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4293 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4294 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4295 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4296 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4297 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4298 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4299 EOF
4300
4301 get_version(){
4302     lcname=lib${1}
4303     name=$(toupper $lcname)
4304     file=$source_path/$lcname/version.h
4305     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4306     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4307     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4308     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4309     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4310 }
4311
4312 map 'get_version $v' $LIBRARY_LIST
4313
4314 cat > $TMPH <<EOF
4315 /* Automatically generated by configure - do not modify! */
4316 #ifndef LIBAV_CONFIG_H
4317 #define LIBAV_CONFIG_H
4318 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4319 #define LIBAV_LICENSE "$(c_escape $license)"
4320 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4321 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4322 #define restrict $_restrict
4323 #define EXTERN_PREFIX "${extern_prefix}"
4324 #define EXTERN_ASM ${extern_prefix}
4325 #define SLIBSUF "$SLIBSUF"
4326 EOF
4327
4328 test -n "$malloc_prefix" &&
4329     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4330
4331 if enabled yasm; then
4332     append config_files $TMPASM
4333     printf '' >$TMPASM
4334 fi
4335
4336 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4337
4338 print_config ARCH_   "$config_files" $ARCH_LIST
4339 print_config HAVE_   "$config_files" $HAVE_LIST
4340 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4341                                      $CONFIG_EXTRA      \
4342                                      $ALL_COMPONENTS    \
4343
4344 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4345
4346 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4347 cp_if_changed $TMPH config.h
4348 touch .config
4349
4350 enabled yasm && cp_if_changed $TMPASM config.asm
4351
4352 cat > $TMPH <<EOF
4353 /* Generated by ffconf */
4354 #ifndef AVUTIL_AVCONFIG_H
4355 #define AVUTIL_AVCONFIG_H
4356 EOF
4357
4358 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4359
4360 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4361
4362 cp_if_changed $TMPH libavutil/avconfig.h
4363
4364 test -n "$WARNINGS" && printf "\n$WARNINGS"
4365
4366 # build pkg-config files
4367
4368 pkgconfig_generate(){
4369     name=$1
4370     shortname=${name#lib}${build_suffix}
4371     comment=$2
4372     version=$3
4373     libs=$4
4374     requires=$5
4375     enabled ${name#lib} || return 0
4376     mkdir -p $name
4377     cat <<EOF > $name/$name.pc
4378 prefix=$prefix
4379 exec_prefix=\${prefix}
4380 libdir=$libdir
4381 includedir=$incdir
4382
4383 Name: $name
4384 Description: $comment
4385 Version: $version
4386 Requires: $(enabled shared || echo $requires)
4387 Requires.private: $(enabled shared && echo $requires)
4388 Conflicts:
4389 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4390 Libs.private: $(enabled shared && echo $libs)
4391 Cflags: -I\${includedir}
4392 EOF
4393     cat <<EOF > $name/$name-uninstalled.pc
4394 prefix=
4395 exec_prefix=
4396 libdir=\${pcfiledir}
4397 includedir=${source_path}
4398
4399 Name: $name
4400 Description: $comment
4401 Version: $version
4402 Requires: $requires
4403 Conflicts:
4404 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4405 Cflags: -I\${includedir}
4406 EOF
4407 }
4408
4409 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4410 enabled movie_filter    && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4411 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4412 enabled scale_filter    && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4413
4414 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4415 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4416 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4417 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4418 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4419 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4420 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil = $LIBAVUTIL_VERSION"