Remove the legacy X11 screen grabber
[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   --enable-rpath           use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92   --enable-gpl             allow use of GPL code, the resulting libs
93                            and binaries will be under GPL [no]
94   --enable-version3        upgrade (L)GPL to version 3 [no]
95   --enable-nonfree         allow use of nonfree code, the resulting libs
96                            and binaries will be unredistributable [no]
97
98 Configuration options:
99   --disable-static         do not build static libraries [no]
100   --enable-shared          build shared libraries [no]
101   --enable-small           optimize for size instead of speed
102   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103   --enable-gray            enable full grayscale support (slower color)
104   --disable-swscale-alpha  disable alpha channel support in swscale
105   --disable-all            disable building components, libraries and programs
106
107 Program options:
108   --disable-programs       do not build command line programs
109   --disable-avconv         disable avconv build
110   --disable-avplay         disable avplay build
111   --disable-avprobe        disable avprobe build
112   --disable-avserver       deprecated, does nothing
113
114 Component options:
115   --disable-doc            do not build documentation
116   --disable-avdevice       disable libavdevice build
117   --disable-avcodec        disable libavcodec build
118   --disable-avformat       disable libavformat build
119   --disable-avutil         disable libavutil build
120   --disable-swscale        disable libswscale build
121   --disable-avfilter       disable video filter support [no]
122   --disable-avresample     disable libavresample build [no]
123   --disable-pthreads       disable pthreads [auto]
124   --disable-w32threads     disable Win32 threads [auto]
125   --disable-network        disable network support [no]
126   --disable-dct            disable DCT code
127   --disable-error-resilience disable error resilience code
128   --disable-lsp            disable LSP code
129   --disable-lzo            disable LZO decoder code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --disable-faan           disable floating point AAN (I)DCT code
134
135 Individual component options:
136   --disable-everything     disable all components listed below
137   --disable-encoder=NAME   disable encoder NAME
138   --enable-encoder=NAME    enable encoder NAME
139   --disable-encoders       disable all encoders
140   --disable-decoder=NAME   disable decoder NAME
141   --enable-decoder=NAME    enable decoder NAME
142   --disable-decoders       disable all decoders
143   --disable-hwaccel=NAME   disable hwaccel NAME
144   --enable-hwaccel=NAME    enable hwaccel NAME
145   --disable-hwaccels       disable all hwaccels
146   --disable-muxer=NAME     disable muxer NAME
147   --enable-muxer=NAME      enable muxer NAME
148   --disable-muxers         disable all muxers
149   --disable-demuxer=NAME   disable demuxer NAME
150   --enable-demuxer=NAME    enable demuxer NAME
151   --disable-demuxers       disable all demuxers
152   --enable-parser=NAME     enable parser NAME
153   --disable-parser=NAME    disable parser NAME
154   --disable-parsers        disable all parsers
155   --enable-bsf=NAME        enable bitstream filter NAME
156   --disable-bsf=NAME       disable bitstream filter NAME
157   --disable-bsfs           disable all bitstream filters
158   --enable-protocol=NAME   enable protocol NAME
159   --disable-protocol=NAME  disable protocol NAME
160   --disable-protocols      disable all protocols
161   --enable-indev=NAME      enable input device NAME
162   --disable-indev=NAME     disable input device NAME
163   --disable-indevs         disable input devices
164   --enable-outdev=NAME     enable output device NAME
165   --disable-outdev=NAME    disable output device NAME
166   --disable-outdevs        disable output devices
167   --disable-devices        disable all devices
168   --enable-filter=NAME     enable filter NAME
169   --disable-filter=NAME    disable filter NAME
170   --disable-filters        disable all filters
171
172 External library support:
173
174   Using any of the following switches will allow Libav to link to the
175   corresponding external library. All the components depending on that library
176   will become enabled, if all their other dependencies are met and they are not
177   explicitly disabled. E.g. --enable-libwavpack will enable linking to
178   libwavpack and allow the libwavpack encoder to be built, unless it is
179   specifically disabled with --disable-encoder=libwavpack.
180
181   Note that only the system libraries are auto-detected. All the other external
182   libraries must be explicitly enabled.
183
184   Also note that the following help text describes the purpose of the libraries
185   themselves, not all their features will necessarily be usable by Libav.
186
187   --enable-avisynth          video frameserver
188   --enable-bzlib             bzip2 compression [autodetect]
189   --enable-frei0r            video filtering plugins
190   --enable-gnutls            crypto
191   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
192   --enable-libcdio           audio CD input
193   --enable-libdc1394         IEEE 1394/Firewire camera input
194   --enable-libdcadec         DCA audio decoding
195   --enable-libfaac           AAC audio encoding
196   --enable-libfdk-aac        AAC audio encoding/decoding
197   --enable-libfontconfig     font configuration and management
198   --enable-libfreetype       font rendering
199   --enable-libgsm            GSM audio encoding/decoding
200   --enable-libilbc           ILBC audio encoding/decoding
201   --enable-libkvazaar        HEVC video encoding
202   --enable-libmp3lame        MP3 audio encoding
203   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204   --enable-libopencore-amrwb AMR-WB audio decoding
205   --enable-libopencv         computer vision
206   --enable-libopenh264       H.264 video encoding/decoding
207   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
208   --enable-libopus           Opus audio encoding/decoding
209   --enable-libpulse          Pulseaudio sound server
210   --enable-librtmp           RTMP streaming
211   --enable-libschroedinger   Dirac video encoding/decoding
212   --enable-libsnappy         snappy compression
213   --enable-libspeex          Speex audio encoding/decoding
214   --enable-libtheora         Theora video encoding/decoding
215   --enable-libtwolame        MP2 audio encoding
216   --enable-libvo-aacenc      AAC audio encoding
217   --enable-libvo-amrwbenc    AMR-WB audio encoding
218   --enable-libvorbis         Vorbis audio encoding/decoding
219   --enable-libvpx            VP* video encoding/decoding
220   --enable-libwavpack        Wavpack audio encoding/decoding
221   --enable-libwebp           WebP image encoding/decoding
222   --enable-libx264           H.264 video encoding
223   --enable-libx265           HEVC video encoding
224   --enable-libxavs           Chinese AVS video encoding
225   --enable-libxcb            X window system protocol communication
226   --enable-libxcb-shm        X11 shm communication [auto]
227   --enable-libxcb-xfixes     X11 mouse rendering [auto]
228   --enable-libxvid           MPEG-4 ASP video encoding
229   --enable-openssl           crypto
230   --enable-zlib              compression [autodetect]
231
232   The following libraries provide various hardware acceleration features:
233   --enable-cuda    Nvidia CUDA (dynamically linked)
234   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
235   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
236   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
237   --enable-libnpp  Nvidia CUDA processing
238   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
239   --enable-nvenc   Nvidia video encoding
240   --enable-omx     OpenMAX IL
241   --enable-omx-rpi OpenMAX IL for Raspberry Pi
242   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
243   --enable-vda     Apple Video Decode Acceleration [auto]
244   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
245
246 Toolchain options:
247   --arch=ARCH              select architecture [$arch]
248   --cpu=CPU                select the minimum required CPU (affects
249                            instruction selection, may crash on older CPUs)
250   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
251   --enable-cross-compile   assume a cross-compiler is used
252   --sysroot=PATH           root of cross-build tree
253   --sysinclude=PATH        location of cross-build system headers
254   --target-os=OS           compiler targets OS [$target_os]
255   --target-exec=CMD        command to run executables on target
256   --target-path=DIR        path to view of build directory on target
257   --target-samples=DIR     path to samples directory on target
258   --toolchain=NAME         set tool defaults according to NAME
259   --nm=NM                  use nm tool
260   --ar=AR                  use archive tool AR [$ar_default]
261   --as=AS                  use assembler AS [$as_default]
262   --cc=CC                  use C compiler CC [$cc_default]
263   --objcc=OCC              use ObjC compiler OCC [$cc_default]
264   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
265   --ld=LD                  use linker LD
266   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
267   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
268   --host-cc=HOSTCC         use host C compiler HOSTCC
269   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
270   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
271   --host-ld=HOSTLD         use host linker HOSTLD
272   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
273   --host-libs=HLIBS        use libs HLIBS when linking for host
274   --host-os=OS             compiler host OS [$target_os]
275   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
276   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
277   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
278   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
279   --extra-libs=ELIBS       add ELIBS [$ELIBS]
280   --extra-version=STRING   version string suffix []
281   --optflags=OPTFLAGS      override optimization-related compiler flags
282   --build-suffix=SUFFIX    library name suffix []
283   --enable-pic             build position-independent code
284   --enable-thumb           compile for Thumb instruction set
285   --enable-lto             use link-time optimization
286   --env="ENV=override"     override the environment variables
287
288 Advanced options (experts only):
289   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
290   --custom-allocator=NAME  use a supported custom allocator
291   --disable-symver         disable symbol versioning
292   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
293   --disable-safe-bitstream-reader
294                            disable buffer boundary checking in bitreaders
295                            (faster, but may crash)
296   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
297   --enable-sram            allow use of on-chip SRAM
298
299 Optimization options (experts only):
300   --disable-asm            disable all assembly optimizations
301   --disable-altivec        disable AltiVec optimizations
302   --disable-vsx            disable VSX optimizations
303   --disable-power8         disable POWER8 optimizations
304   --disable-amd3dnow       disable 3DNow! optimizations
305   --disable-amd3dnowext    disable 3DNow! extended optimizations
306   --disable-mmx            disable MMX optimizations
307   --disable-mmxext         disable MMXEXT optimizations
308   --disable-sse            disable SSE optimizations
309   --disable-sse2           disable SSE2 optimizations
310   --disable-sse3           disable SSE3 optimizations
311   --disable-ssse3          disable SSSE3 optimizations
312   --disable-sse4           disable SSE4 optimizations
313   --disable-sse42          disable SSE4.2 optimizations
314   --disable-avx            disable AVX optimizations
315   --disable-xop            disable XOP optimizations
316   --disable-fma3           disable FMA3 optimizations
317   --disable-fma4           disable FMA4 optimizations
318   --disable-avx2           disable AVX2 optimizations
319   --disable-armv5te        disable armv5te optimizations
320   --disable-armv6          disable armv6 optimizations
321   --disable-armv6t2        disable armv6t2 optimizations
322   --disable-vfp            disable VFP optimizations
323   --disable-neon           disable NEON optimizations
324   --disable-inline-asm     disable use of inline assembly
325   --disable-yasm           disable use of nasm/yasm assembly
326
327 Developer options (useful when working on Libav itself):
328   --disable-debug          disable debugging symbols
329   --enable-debug=LEVEL     set the debug level [$debuglevel]
330   --disable-optimizations  disable compiler optimizations
331   --enable-extra-warnings  enable more compiler warnings
332   --samples=PATH           location of test samples for FATE, if not set use
333                            \$LIBAV_SAMPLES at make invocation time.
334   --enable-neon-clobber-test check NEON registers for clobbering (should be
335                            used only for debugging purposes)
336   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337                            should be used only for debugging purposes)
338   --enable-random          randomly enable/disable components
339   --disable-random
340   --enable-random=LIST     randomly enable/disable specific components or
341   --disable-random=LIST    component groups. LIST is a comma-separated list
342                            of NAME[:PROB] entries where NAME is a component
343                            (group) and PROB the probability associated with
344                            NAME (default 0.5).
345   --random-seed=VALUE      seed value for --enable/disable-random
346   --disable-valgrind-backtrace do not print a backtrace under Valgrind
347                            (only applies to --disable-optimizations builds)
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351   exit 0
352 }
353
354 quotes='""'
355
356 log(){
357     echo "$@" >> $logfile
358 }
359
360 log_file(){
361     log BEGIN $1
362     i=1
363     while read line; do
364         printf '%5s   %s\n' "${i}" "${line}"
365         i=$(($i+1))
366     done < $1 >> $logfile
367     log END $1
368 }
369
370 echolog(){
371     log "$@"
372     echo "$@"
373 }
374
375 warn(){
376     log "WARNING: $*"
377     WARNINGS="${WARNINGS}WARNING: $*\n"
378 }
379
380 die(){
381     echolog "$@"
382     cat <<EOF
383
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git.  If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
387 EOF
388     if disabled logging; then
389         cat <<EOF
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
392 EOF
393     else
394         cat <<EOF
395 Include the log file "$logfile" produced by configure as this will help
396 solving the problem.
397 EOF
398     fi
399     exit 1
400 }
401
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
403 toupper(){
404     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
405 }
406
407 tolower(){
408     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
409 }
410
411 c_escape(){
412     echo "$*" | sed 's/["\\]/\\\0/g'
413 }
414
415 sh_quote(){
416     v=$(echo "$1" | sed "s/'/'\\\\''/g")
417     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
418     echo "$v"
419 }
420
421 cleanws(){
422     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
423 }
424
425 filter(){
426     pat=$1
427     shift
428     for v; do
429         eval "case $v in $pat) echo $v ;; esac"
430     done
431 }
432
433 filter_out(){
434     pat=$1
435     shift
436     for v; do
437         eval "case $v in $pat) ;; *) echo $v ;; esac"
438     done
439 }
440
441 map(){
442     m=$1
443     shift
444     for v; do eval $m; done
445 }
446
447 add_suffix(){
448     suffix=$1
449     shift
450     for v; do echo ${v}${suffix}; done
451 }
452
453 set_all(){
454     value=$1
455     shift
456     for var in $*; do
457         eval $var=$value
458     done
459 }
460
461 set_weak(){
462     value=$1
463     shift
464     for var; do
465         eval : \${$var:=$value}
466     done
467 }
468
469 sanitize_var_name(){
470     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
471 }
472
473 set_safe(){
474     var=$1
475     shift
476     eval $(sanitize_var_name "$var")='$*'
477 }
478
479 get_safe(){
480     eval echo \$$(sanitize_var_name "$1")
481 }
482
483 pushvar(){
484     for pvar in $*; do
485         eval level=\${${pvar}_level:=0}
486         eval ${pvar}_${level}="\$$pvar"
487         eval ${pvar}_level=$(($level+1))
488     done
489 }
490
491 popvar(){
492     for pvar in $*; do
493         eval level=\${${pvar}_level:-0}
494         test $level = 0 && continue
495         eval level=$(($level-1))
496         eval $pvar="\${${pvar}_${level}}"
497         eval ${pvar}_level=$level
498         eval unset ${pvar}_${level}
499     done
500 }
501
502 enable(){
503     set_all yes $*
504 }
505
506 disable(){
507     set_all no $*
508 }
509
510 enable_weak(){
511     set_weak yes $*
512 }
513
514 disable_weak(){
515     set_weak no $*
516 }
517
518 enable_safe(){
519     for var; do
520         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521     done
522 }
523
524 disable_safe(){
525     for var; do
526         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527     done
528 }
529
530 do_enable_deep(){
531     for var; do
532         enabled $var && continue
533         eval sel="\$${var}_select"
534         eval sgs="\$${var}_suggest"
535         pushvar var sgs
536         enable_deep $sel
537         popvar sgs
538         enable_deep_weak $sgs
539         popvar var
540     done
541 }
542
543 enable_deep(){
544     do_enable_deep $*
545     enable $*
546 }
547
548 enable_deep_weak(){
549     for var; do
550         disabled $var && continue
551         pushvar var
552         do_enable_deep $var
553         popvar var
554         enable_weak $var
555     done
556 }
557
558 enabled(){
559     test "${1#!}" = "$1" && op== || op=!=
560     eval test "x\$${1#!}" $op "xyes"
561 }
562
563 disabled(){
564     test "${1#!}" = "$1" && op== || op=!=
565     eval test "x\$${1#!}" $op "xno"
566 }
567
568 enabled_all(){
569     for opt; do
570         enabled $opt || return 1
571     done
572 }
573
574 disabled_all(){
575     for opt; do
576         disabled $opt || return 1
577     done
578 }
579
580 enabled_any(){
581     for opt; do
582         enabled $opt && return 0
583     done
584 }
585
586 disabled_any(){
587     for opt; do
588         disabled $opt && return 0
589     done
590     return 1
591 }
592
593 set_default(){
594     for opt; do
595         eval : \${$opt:=\$${opt}_default}
596     done
597 }
598
599 is_in(){
600     value=$1
601     shift
602     for var in $*; do
603         [ $var = $value ] && return 0
604     done
605     return 1
606 }
607
608 do_check_deps(){
609     for cfg; do
610         cfg="${cfg#!}"
611         enabled ${cfg}_checking && die "Circular dependency for $cfg."
612         disabled ${cfg}_checking && continue
613         enable ${cfg}_checking
614         append allopts $cfg
615
616         eval dep_all="\$${cfg}_deps"
617         eval dep_any="\$${cfg}_deps_any"
618         eval dep_sel="\$${cfg}_select"
619         eval dep_sgs="\$${cfg}_suggest"
620         eval dep_ifa="\$${cfg}_if"
621         eval dep_ifn="\$${cfg}_if_any"
622
623         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626
627         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629         enabled_all  $dep_all || disable $cfg
630         enabled_any  $dep_any || disable $cfg
631         disabled_any $dep_sel && disable $cfg
632
633         if enabled $cfg; then
634             enable_deep $dep_sel
635             enable_deep_weak $dep_sgs
636         fi
637
638         disable ${cfg}_checking
639     done
640 }
641
642 check_deps(){
643     unset allopts
644
645     do_check_deps "$@"
646
647     for cfg in $allopts; do
648         enabled $cfg || continue
649         eval dep_extralibs="\$${cfg}_extralibs"
650         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf}
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700     var=$1
701     uniq_list=""
702     for tok in $(eval echo \$$var); do
703         uniq_list="$(filter_out $tok $uniq_list) $tok"
704     done
705     eval "$var=\"${uniq_list}\""
706 }
707
708 add_cppflags(){
709     append CPPFLAGS "$@"
710 }
711
712 add_cflags(){
713     append CFLAGS $($cflags_filter "$@")
714 }
715
716 add_asflags(){
717     append ASFLAGS $($asflags_filter "$@")
718 }
719
720 add_objcflags(){
721     append OBJCFLAGS $($objcflags_filter "$@")
722 }
723
724 add_ldflags(){
725     append LDFLAGS $($ldflags_filter "$@")
726 }
727
728 add_ldexeflags(){
729     append LDEXEFLAGS $($ldflags_filter "$@")
730 }
731
732 add_stripflags(){
733     append STRIPFLAGS "$@"
734 }
735
736 add_extralibs(){
737     prepend extralibs $($ldflags_filter "$@")
738 }
739
740 add_host_cppflags(){
741     append host_cppflags "$@"
742 }
743
744 add_host_cflags(){
745     append host_cflags $($host_cflags_filter "$@")
746 }
747
748 add_host_ldflags(){
749     append host_ldflags $($host_ldflags_filter "$@")
750 }
751
752 add_compat(){
753     append compat_objs $1
754     shift
755     map 'add_cppflags -D$v' "$@"
756 }
757
758 check_cmd(){
759     log "$@"
760     "$@" >> $logfile 2>&1
761 }
762
763 cc_o(){
764     eval printf '%s\\n' $CC_O
765 }
766
767 cc_e(){
768     eval printf '%s\\n' $CC_E
769 }
770
771 check_cc(){
772     log check_cc "$@"
773     cat > $TMPC
774     log_file $TMPC
775     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
776 }
777
778 check_objcc(){
779     log check_objcc "$@"
780     cat > $TMPC
781     log_file $TMPC
782     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
783 }
784
785 check_cpp(){
786     log check_cpp "$@"
787     cat > $TMPC
788     log_file $TMPC
789     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
790 }
791
792 as_o(){
793     eval printf '%s\\n' $AS_O
794 }
795
796 check_as(){
797     log check_as "$@"
798     cat > $TMPS
799     log_file $TMPS
800     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
801 }
802
803 check_inline_asm(){
804     log check_inline_asm "$@"
805     name="$1"
806     code="$2"
807     shift 2
808     disable $name
809     check_cc "$@" <<EOF && enable $name
810 void foo(void){ __asm__ volatile($code); }
811 EOF
812 }
813
814 check_insn(){
815     log check_insn "$@"
816     check_inline_asm ${1}_inline "\"$2\""
817     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
818 }
819
820 check_yasm(){
821     log check_yasm "$@"
822     echo "$1" > $TMPS
823     log_file $TMPS
824     shift 1
825     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
826 }
827
828 ld_o(){
829     eval printf '%s\\n' $LD_O
830 }
831
832 check_ld(){
833     log check_ld "$@"
834     flags=$(filter_out '-l*' "$@")
835     libs=$(filter '-l*' "$@")
836     check_cc $($cflags_filter $flags) || return
837     flags=$($ldflags_filter $flags)
838     libs=$($ldflags_filter $libs)
839     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
840 }
841
842 print_include(){
843     hdr=$1
844     test "${hdr%.h}" = "${hdr}" &&
845         echo "#include $hdr"    ||
846         echo "#include <$hdr>"
847 }
848
849 check_code(){
850     log check_code "$@"
851     check=$1
852     headers=$2
853     code=$3
854     shift 3
855     {
856         for hdr in $headers; do
857             print_include $hdr
858         done
859         echo "int main(void) { $code; return 0; }"
860     } | check_$check "$@"
861 }
862
863 check_cppflags(){
864     log check_cppflags "$@"
865     check_cc "$@" <<EOF && append CPPFLAGS "$@"
866 int x;
867 EOF
868 }
869
870 test_cflags(){
871     log test_cflags "$@"
872     set -- $($cflags_filter "$@")
873     check_cc "$@" <<EOF
874 int x;
875 EOF
876 }
877
878 check_cflags(){
879     log check_cflags "$@"
880     test_cflags "$@" && add_cflags "$@"
881 }
882
883 test_objcflags(){
884     log test_cflags "$@"
885     set -- $($cflags_filter "$@")
886     check_objcc "$@" <<EOF
887 int x;
888 EOF
889 }
890
891 check_objcflags(){
892     log check_cflags "$@"
893     test_objcflags "$@" && add_objcflags "$@"
894 }
895
896 test_ldflags(){
897     log test_ldflags "$@"
898     check_ld "$@" <<EOF
899 int main(void){ return 0; }
900 EOF
901 }
902
903 check_ldflags(){
904     log check_ldflags "$@"
905     test_ldflags "$@" && add_ldflags "$@"
906 }
907
908 test_stripflags(){
909     log test_stripflags "$@"
910     # call check_cc to get a fresh TMPO
911     check_cc <<EOF
912 int main(void) { return 0; }
913 EOF
914     check_cmd $strip $STRIPFLAGS "$@" $TMPO
915 }
916
917 check_stripflags(){
918     log check_stripflags "$@"
919     test_stripflags "$@" && add_stripflags "$@"
920 }
921
922 check_header(){
923     log check_header "$@"
924     header=$1
925     shift
926     disable_safe $header
927     check_cpp "$@" <<EOF && enable_safe $header
928 #include <$header>
929 int x;
930 EOF
931 }
932
933 check_func(){
934     log check_func "$@"
935     func=$1
936     shift
937     disable $func
938     check_ld "$@" <<EOF && enable $func
939 extern int $func();
940 int main(void){ $func(); }
941 EOF
942 }
943
944 check_mathfunc(){
945     log check_mathfunc "$@"
946     func=$1
947     narg=$2
948     shift 2
949     test $narg = 2 && args="f, g" || args="f"
950     disable $func
951     check_ld "$@" <<EOF && enable $func
952 #include <math.h>
953 float foo(float f, float g) { return $func($args); }
954 int main(void){ return 0; }
955 EOF
956 }
957
958 check_func_headers(){
959     log check_func_headers "$@"
960     headers=$1
961     funcs=$2
962     shift 2
963     {
964         for hdr in $headers; do
965             print_include $hdr
966         done
967         for func in $funcs; do
968             echo "long check_$func(void) { return (long) $func; }"
969         done
970         echo "int main(void) { return 0; }"
971     } | check_ld "$@" && enable $funcs && enable_safe $headers
972 }
973
974 check_cpp_condition(){
975     log check_cpp_condition "$@"
976     header=$1
977     condition=$2
978     shift 2
979     check_cpp "$@" <<EOF
980 #include <$header>
981 #if !($condition)
982 #error "unsatisfied condition: $condition"
983 #endif
984 EOF
985 }
986
987 check_lib(){
988     log check_lib "$@"
989     header="$1"
990     func="$2"
991     shift 2
992     check_header $header && check_func $func "$@" && add_extralibs "$@"
993 }
994
995 check_lib2(){
996     log check_lib2 "$@"
997     headers="$1"
998     funcs="$2"
999     shift 2
1000     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1001 }
1002
1003 check_pkg_config(){
1004     log check_pkg_config "$@"
1005     pkg="$1"
1006     headers="$2"
1007     funcs="$3"
1008     shift 3
1009     check_cmd $pkg_config --exists --print-errors $pkg || return
1010     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1011     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1012     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1013         set_safe "${pkg}_cflags" $pkg_cflags   &&
1014         set_safe "${pkg}_libs"   $pkg_libs
1015 }
1016
1017 check_exec(){
1018     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1019 }
1020
1021 check_exec_crash(){
1022     code=$(cat)
1023
1024     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1025     # are safe but may not be available everywhere.  Thus we use
1026     # raise(SIGTERM) instead.  The check is run in a subshell so we
1027     # can redirect the "Terminated" message from the shell.  SIGBUS
1028     # is not defined by standard C so it is used conditionally.
1029
1030     (check_exec "$@") >> $logfile 2>&1 <<EOF
1031 #include <signal.h>
1032 static void sighandler(int sig){
1033     raise(SIGTERM);
1034 }
1035 int foo(void){
1036     $code
1037 }
1038 int (*func_ptr)(void) = foo;
1039 int main(void){
1040     signal(SIGILL, sighandler);
1041     signal(SIGFPE, sighandler);
1042     signal(SIGSEGV, sighandler);
1043 #ifdef SIGBUS
1044     signal(SIGBUS, sighandler);
1045 #endif
1046     return func_ptr();
1047 }
1048 EOF
1049 }
1050
1051 check_type(){
1052     log check_type "$@"
1053     headers=$1
1054     type=$2
1055     shift 2
1056     disable_safe "$type"
1057     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1058 }
1059
1060 check_struct(){
1061     log check_struct "$@"
1062     headers=$1
1063     struct=$2
1064     member=$3
1065     shift 3
1066     disable_safe "${struct}_${member}"
1067     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1068         enable_safe "${struct}_${member}"
1069 }
1070
1071 check_builtin(){
1072     log check_builtin "$@"
1073     name=$1
1074     headers=$2
1075     builtin=$3
1076     shift 3
1077     disable "$name"
1078     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1079 }
1080
1081 check_compile_assert(){
1082     log check_compile_assert "$@"
1083     name=$1
1084     headers=$2
1085     condition=$3
1086     shift 3
1087     disable "$name"
1088     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1089 }
1090
1091 require(){
1092     name="$1"
1093     header="$2"
1094     func="$3"
1095     shift 3
1096     check_lib $header $func "$@" || die "ERROR: $name not found"
1097 }
1098
1099 require2(){
1100     name="$1"
1101     headers="$2"
1102     func="$3"
1103     shift 3
1104     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1105 }
1106
1107 require_pkg_config(){
1108     pkg="$1"
1109     check_pkg_config "$@" || die "ERROR: $pkg not found"
1110     add_cflags    $(get_safe "${pkg}_cflags")
1111     add_extralibs $(get_safe "${pkg}_libs")
1112 }
1113
1114 hostcc_e(){
1115     eval printf '%s\\n' $HOSTCC_E
1116 }
1117
1118 hostcc_o(){
1119     eval printf '%s\\n' $HOSTCC_O
1120 }
1121
1122 check_host_cc(){
1123     log check_host_cc "$@"
1124     cat > $TMPC
1125     log_file $TMPC
1126     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1127 }
1128
1129 check_host_cpp(){
1130     log check_host_cpp "$@"
1131     cat > $TMPC
1132     log_file $TMPC
1133     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1134 }
1135
1136 check_host_cppflags(){
1137     log check_host_cppflags "$@"
1138     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1139 int x;
1140 EOF
1141 }
1142
1143 check_host_cflags(){
1144     log check_host_cflags "$@"
1145     set -- $($host_cflags_filter "$@")
1146     check_host_cc "$@" <<EOF && append host_cflags "$@"
1147 int x;
1148 EOF
1149 }
1150
1151 check_host_cpp_condition(){
1152     log check_host_cpp_condition "$@"
1153     header=$1
1154     condition=$2
1155     shift 2
1156     check_host_cpp "$@" <<EOF
1157 #include <$header>
1158 #if !($condition)
1159 #error "unsatisfied condition: $condition"
1160 #endif
1161 EOF
1162 }
1163
1164 apply(){
1165     file=$1
1166     shift
1167     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1168 }
1169
1170 cp_if_changed(){
1171     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1172     mkdir -p "$(dirname $2)"
1173     $cp_f "$1" "$2"
1174 }
1175
1176 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1177 # system-dependent things.
1178
1179 AVCODEC_COMPONENTS="
1180     bsfs
1181     decoders
1182     encoders
1183     hwaccels
1184     parsers
1185 "
1186
1187 AVDEVICE_COMPONENTS="
1188     indevs
1189     outdevs
1190 "
1191 AVFILTER_COMPONENTS="
1192     filters
1193 "
1194 AVFORMAT_COMPONENTS="
1195     demuxers
1196     muxers
1197     protocols
1198 "
1199
1200 AVRESAMPLE_COMPONENTS=""
1201 AVUTIL_COMPONENTS=""
1202
1203 COMPONENT_LIST="
1204     $AVCODEC_COMPONENTS
1205     $AVDEVICE_COMPONENTS
1206     $AVFILTER_COMPONENTS
1207     $AVFORMAT_COMPONENTS
1208     $AVRESAMPLE_COMPONENTS
1209     $AVUTIL_COMPONENTS
1210 "
1211
1212 EXAMPLE_LIST="
1213     avcodec_example
1214     filter_audio_example
1215     metadata_example
1216     output_example
1217     qsvdec_example
1218     transcode_aac_example
1219 "
1220
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1222     cuda
1223     libnpp
1224 "
1225 HWACCEL_LIBRARY_LIST="
1226     $HWACCEL_LIBRARY_NONFREE_LIST
1227     d3d11va
1228     dxva2
1229     libmfx
1230     mmal
1231     nvenc
1232     omx
1233     vaapi
1234     vda
1235     vdpau
1236 "
1237
1238 EXTERNAL_LIBRARY_GPL_LIST="
1239     libcdio
1240     libx264
1241     libx265
1242     libxavs
1243     libxvid
1244 "
1245
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1247     libfaac
1248     libfdk_aac
1249     openssl
1250 "
1251
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1253     libopencore_amrnb
1254     libopencore_amrwb
1255     libvo_aacenc
1256     libvo_amrwbenc
1257 "
1258
1259 EXTERNAL_LIBRARY_LIST="
1260     $EXTERNAL_LIBRARY_GPL_LIST
1261     $EXTERNAL_LIBRARY_NONFREE_LIST
1262     $EXTERNAL_LIBRARY_VERSION3_LIST
1263     avisynth
1264     bzlib
1265     frei0r
1266     gnutls
1267     libbs2b
1268     libdc1394
1269     libdcadec
1270     libfontconfig
1271     libfreetype
1272     libgsm
1273     libilbc
1274     libkvazaar
1275     libmp3lame
1276     libopencv
1277     libopenh264
1278     libopenjpeg
1279     libopus
1280     libpulse
1281     librtmp
1282     libschroedinger
1283     libsnappy
1284     libspeex
1285     libtheora
1286     libtwolame
1287     libvorbis
1288     libvpx
1289     libwavpack
1290     libwebp
1291     libxcb
1292     libxcb_shm
1293     libxcb_xfixes
1294     zlib
1295 "
1296
1297 FEATURE_LIST="
1298     gray
1299     hardcoded_tables
1300     omx_rpi
1301     runtime_cpudetect
1302     safe_bitstream_reader
1303     shared
1304     small
1305     sram
1306     static
1307     swscale_alpha
1308 "
1309
1310 LIBRARY_LIST="
1311     avcodec
1312     avdevice
1313     avfilter
1314     avformat
1315     avresample
1316     avutil
1317     swscale
1318 "
1319
1320 LICENSE_LIST="
1321     gpl
1322     nonfree
1323     version3
1324 "
1325
1326 PROGRAM_LIST="
1327     avconv
1328     avplay
1329     avprobe
1330 "
1331
1332 SUBSYSTEM_LIST="
1333     dct
1334     doc
1335     error_resilience
1336     faan
1337     fft
1338     lsp
1339     lzo
1340     mdct
1341     network
1342     rdft
1343 "
1344
1345 CONFIG_LIST="
1346     $COMPONENT_LIST
1347     $EXAMPLE_LIST
1348     $EXTERNAL_LIBRARY_LIST
1349     $HWACCEL_LIBRARY_LIST
1350     $FEATURE_LIST
1351     $LICENSE_LIST
1352     $LIBRARY_LIST
1353     $PROGRAM_LIST
1354     $SUBSYSTEM_LIST
1355     memalign_hack
1356     neon_clobber_test
1357     pic
1358     pod2man
1359     texi2html
1360     thumb
1361     valgrind_backtrace
1362     xmm_clobber_test
1363 "
1364
1365 THREADS_LIST="
1366     pthreads
1367     w32threads
1368 "
1369
1370 ATOMICS_LIST="
1371     atomics_gcc
1372     atomics_suncc
1373     atomics_win32
1374 "
1375
1376 ARCH_LIST="
1377     aarch64
1378     alpha
1379     arm
1380     avr32
1381     avr32_ap
1382     avr32_uc
1383     bfin
1384     ia64
1385     m68k
1386     mips
1387     mips64
1388     parisc
1389     ppc
1390     ppc64
1391     s390
1392     sh4
1393     sparc
1394     sparc64
1395     tilegx
1396     tilepro
1397     tomi
1398     x86
1399     x86_32
1400     x86_64
1401 "
1402
1403 ARCH_EXT_LIST_ARM="
1404     armv5te
1405     armv6
1406     armv6t2
1407     armv8
1408     neon
1409     vfp
1410     vfpv3
1411 "
1412
1413 ARCH_EXT_LIST_X86_SIMD="
1414     amd3dnow
1415     amd3dnowext
1416     avx
1417     avx2
1418     fma3
1419     fma4
1420     mmx
1421     mmxext
1422     sse
1423     sse2
1424     sse3
1425     sse4
1426     sse42
1427     ssse3
1428     xop
1429 "
1430
1431 ARCH_EXT_LIST_PPC="
1432     altivec
1433     dcbzl
1434     ldbrx
1435     power8
1436     ppc4xx
1437     vsx
1438 "
1439
1440 ARCH_EXT_LIST_X86="
1441     $ARCH_EXT_LIST_X86_SIMD
1442     cpunop
1443     i686
1444 "
1445
1446 ARCH_EXT_LIST_MIPS="
1447     loongson
1448     mips32r1
1449     mips64r1
1450     mips32r2
1451     mips64r2
1452     mips32r6
1453     mips64r6
1454 "
1455
1456 ARCH_EXT_LIST="
1457     $ARCH_EXT_LIST_ARM
1458     $ARCH_EXT_LIST_MIPS
1459     $ARCH_EXT_LIST_PPC
1460     $ARCH_EXT_LIST_X86
1461     vis
1462 "
1463
1464 ARCH_FEATURES="
1465     aligned_stack
1466     fast_64bit
1467     fast_clz
1468     fast_cmov
1469     local_aligned_8
1470     local_aligned_16
1471     simd_align_16
1472 "
1473
1474 BUILTIN_LIST="
1475     atomic_cas_ptr
1476     machine_rw_barrier
1477     MemoryBarrier
1478     mm_empty
1479     rdtsc
1480     sem_timedwait
1481     sync_val_compare_and_swap
1482 "
1483 HAVE_LIST_CMDLINE="
1484     inline_asm
1485     symver
1486     yasm
1487 "
1488
1489 HAVE_LIST_PUB="
1490     bigendian
1491     fast_unaligned
1492 "
1493
1494 HEADERS_LIST="
1495     AVFoundation_AVFoundation_h
1496     alsa_asoundlib_h
1497     altivec_h
1498     arpa_inet_h
1499     cdio_paranoia_h
1500     cdio_paranoia_paranoia_h
1501     dispatch_dispatch_h
1502     dev_bktr_ioctl_bt848_h
1503     dev_bktr_ioctl_meteor_h
1504     dev_ic_bt8xx_h
1505     dev_video_bktr_ioctl_bt848_h
1506     dev_video_meteor_ioctl_meteor_h
1507     direct_h
1508     dlfcn_h
1509     d3d11_h
1510     dxva_h
1511     gsm_h
1512     io_h
1513     mach_mach_time_h
1514     machine_ioctl_bt848_h
1515     machine_ioctl_meteor_h
1516     malloc_h
1517     poll_h
1518     sndio_h
1519     soundcard_h
1520     sys_mman_h
1521     sys_param_h
1522     sys_resource_h
1523     sys_select_h
1524     sys_soundcard_h
1525     sys_time_h
1526     sys_un_h
1527     sys_videoio_h
1528     unistd_h
1529     valgrind_valgrind_h
1530     windows_h
1531     winsock2_h
1532 "
1533
1534 INTRINSICS_LIST="
1535     intrinsics_neon
1536 "
1537
1538 MATH_FUNCS="
1539     atanf
1540     atan2f
1541     cbrtf
1542     cosf
1543     exp2
1544     exp2f
1545     expf
1546     isinf
1547     isnan
1548     ldexpf
1549     llrint
1550     llrintf
1551     log2
1552     log2f
1553     log10f
1554     lrint
1555     lrintf
1556     powf
1557     rint
1558     round
1559     roundf
1560     sinf
1561     trunc
1562     truncf
1563 "
1564
1565 SYSTEM_FUNCS="
1566     aligned_malloc
1567     clock_gettime
1568     closesocket
1569     CommandLineToArgvW
1570     CoTaskMemFree
1571     CryptGenRandom
1572     dlopen
1573     fcntl
1574     flt_lim
1575     fork
1576     getaddrinfo
1577     gethrtime
1578     getopt
1579     GetProcessAffinityMask
1580     GetProcessMemoryInfo
1581     GetProcessTimes
1582     getrusage
1583     GetSystemTimeAsFileTime
1584     gettimeofday
1585     gmtime_r
1586     inet_aton
1587     isatty
1588     jack_port_get_latency_range
1589     LoadLibrary
1590     localtime_r
1591     mach_absolute_time
1592     MapViewOfFile
1593     memalign
1594     mkstemp
1595     mmap
1596     mprotect
1597     nanosleep
1598     posix_memalign
1599     sched_getaffinity
1600     SetConsoleTextAttribute
1601     setmode
1602     setrlimit
1603     Sleep
1604     strerror_r
1605     sysconf
1606     sysctl
1607     usleep
1608     VirtualAlloc
1609 "
1610
1611 TOOLCHAIN_FEATURES="
1612     as_dn_directive
1613     as_fpu_directive
1614     as_func
1615     as_object_arch
1616     asm_mod_q
1617     attribute_may_alias
1618     attribute_packed
1619     ebp_available
1620     ebx_available
1621     gnu_as
1622     ibm_asm
1623     inline_asm_labels
1624     pragma_deprecated
1625     symver_asm_label
1626     symver_gnu_asm
1627     vfp_args
1628     xform_asm
1629     xmm_clobbers
1630 "
1631
1632 TYPES_LIST="
1633     CONDITION_VARIABLE_Ptr
1634     socklen_t
1635     struct_addrinfo
1636     struct_group_source_req
1637     struct_ip_mreq_source
1638     struct_ipv6_mreq
1639     struct_pollfd
1640     struct_rusage_ru_maxrss
1641     struct_sockaddr_in6
1642     struct_sockaddr_sa_len
1643     struct_sockaddr_storage
1644     struct_v4l2_frmivalenum_discrete
1645 "
1646
1647 HAVE_LIST="
1648     $ARCH_EXT_LIST
1649     $(add_suffix _external $ARCH_EXT_LIST)
1650     $(add_suffix _inline   $ARCH_EXT_LIST)
1651     $ARCH_FEATURES
1652     $ATOMICS_LIST
1653     $BUILTIN_LIST
1654     $HAVE_LIST_CMDLINE
1655     $HAVE_LIST_PUB
1656     $HEADERS_LIST
1657     $INTRINSICS_LIST
1658     $MATH_FUNCS
1659     $SYSTEM_FUNCS
1660     $THREADS_LIST
1661     $TOOLCHAIN_FEATURES
1662     $TYPES_LIST
1663     atomics_native
1664     dos_paths
1665     dxva2_lib
1666     libc_msvcrt
1667     libdc1394_1
1668     libdc1394_2
1669     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1670     sdl
1671     section_data_rel_ro
1672     threads
1673     vaapi_drm
1674     vaapi_x11
1675     vdpau_x11
1676     xlib
1677 "
1678
1679 # options emitted with CONFIG_ prefix but not available on the command line
1680 CONFIG_EXTRA="
1681     aandcttables
1682     ac3dsp
1683     audio_frame_queue
1684     audiodsp
1685     blockdsp
1686     bswapdsp
1687     cabac
1688     dirac_parse
1689     dvprofile
1690     faandct
1691     faanidct
1692     fdctdsp
1693     flacdsp
1694     fmtconvert
1695     g722dsp
1696     gcrypt
1697     gmp
1698     golomb
1699     gplv3
1700     h263dsp
1701     h264chroma
1702     h264dsp
1703     h264parse
1704     h264pred
1705     h264qpel
1706     hpeldsp
1707     huffman
1708     huffyuvdsp
1709     huffyuvencdsp
1710     idctdsp
1711     iirfilter
1712     imdct15
1713     intrax8
1714     iso_media
1715     ividsp
1716     jpegtables
1717     libx262
1718     lgplv3
1719     lpc
1720     lzf
1721     me_cmp
1722     mpeg_er
1723     mpegaudio
1724     mpegaudiodsp
1725     mpegvideo
1726     mpegvideoenc
1727     mss34dsp
1728     pixblockdsp
1729     qpeldsp
1730     qsv
1731     qsvdec
1732     qsvenc
1733     rangecoder
1734     riffdec
1735     riffenc
1736     rtpdec
1737     rtpenc_chain
1738     rv34dsp
1739     sinewin
1740     snappy
1741     srtp
1742     startcode
1743     texturedsp
1744     texturedspenc
1745     tpeldsp
1746     vaapi_encode
1747     vc1dsp
1748     videodsp
1749     vp3dsp
1750     vp56dsp
1751     vp8dsp
1752     wma_freqs
1753     wmv2dsp
1754 "
1755
1756 CMDLINE_SELECT="
1757     $ARCH_EXT_LIST
1758     $CONFIG_LIST
1759     $HAVE_LIST_CMDLINE
1760     $THREADS_LIST
1761     asm
1762     cross_compile
1763     debug
1764     extra_warnings
1765     logging
1766     lto
1767     optimizations
1768     rpath
1769 "
1770
1771 PATHS_LIST="
1772     bindir
1773     datadir
1774     docdir
1775     incdir
1776     libdir
1777     mandir
1778     prefix
1779     shlibdir
1780 "
1781
1782 CMDLINE_SET="
1783     $PATHS_LIST
1784     ar
1785     arch
1786     as
1787     build_suffix
1788     cc
1789     objcc
1790     cpu
1791     cross_prefix
1792     custom_allocator
1793     dep_cc
1794     env
1795     extra_version
1796     host_cc
1797     host_cflags
1798     host_ld
1799     host_ldflags
1800     host_libs
1801     host_os
1802     ld
1803     logfile
1804     malloc_prefix
1805     nm
1806     optflags
1807     pkg_config
1808     pkg_config_flags
1809     random_seed
1810     samples
1811     sysinclude
1812     sysroot
1813     target_exec
1814     target_os
1815     target_path
1816     target_samples
1817     toolchain
1818 "
1819
1820 CMDLINE_APPEND="
1821     extra_cflags
1822     extra_objcflags
1823     host_cppflags
1824 "
1825
1826 # code dependency declarations
1827
1828 # architecture extensions
1829
1830 armv5te_deps="arm"
1831 armv6_deps="arm"
1832 armv6t2_deps="arm"
1833 armv8_deps="aarch64"
1834 neon_deps_any="aarch64 arm"
1835 intrinsics_neon_deps="neon"
1836 vfp_deps_any="aarch64 arm"
1837 vfpv3_deps="vfp"
1838
1839 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1840
1841 altivec_deps="ppc"
1842 ppc4xx_deps="ppc"
1843 vsx_deps="altivec"
1844 power8_deps="vsx"
1845
1846 cpunop_deps="i686"
1847 x86_64_select="i686"
1848 x86_64_suggest="fast_cmov"
1849
1850 amd3dnow_deps="mmx"
1851 amd3dnowext_deps="amd3dnow"
1852 i686_deps="x86"
1853 mmx_deps="x86"
1854 mmxext_deps="mmx"
1855 sse_deps="mmxext"
1856 sse2_deps="sse"
1857 sse3_deps="sse2"
1858 ssse3_deps="sse3"
1859 sse4_deps="ssse3"
1860 sse42_deps="sse4"
1861 avx_deps="sse42"
1862 xop_deps="avx"
1863 fma3_deps="avx"
1864 fma4_deps="avx"
1865 avx2_deps="avx"
1866
1867 mmx_external_deps="yasm"
1868 mmx_inline_deps="inline_asm"
1869 mmx_suggest="mmx_external mmx_inline"
1870
1871 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1872     eval dep=\$${ext}_deps
1873     eval ${ext}_external_deps='"${dep}_external"'
1874     eval ${ext}_inline_deps='"${dep}_inline"'
1875     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1876 done
1877
1878 aligned_stack_if_any="aarch64 ppc x86"
1879 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1880 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1881 fast_unaligned_if_any="aarch64 ppc x86"
1882 simd_align_16_if_any="altivec neon sse"
1883
1884 # system capabilities
1885 symver_if_any="symver_asm_label symver_gnu_asm"
1886 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1887
1888 # threading support
1889 atomics_gcc_if="sync_val_compare_and_swap"
1890 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1891 atomics_win32_if="MemoryBarrier"
1892 atomics_native_if_any="$ATOMICS_LIST"
1893 w32threads_deps="atomics_native"
1894 threads_if_any="$THREADS_LIST"
1895
1896 # subsystems
1897 dct_select="rdft"
1898 dirac_parse_select="golomb"
1899 error_resilience_select="me_cmp"
1900 faandct_deps="faan fdctdsp"
1901 faanidct_deps="faan idctdsp"
1902 h264dsp_select="startcode"
1903 intrax8_select="blockdsp idctdsp"
1904 mdct_select="fft"
1905 rdft_select="fft"
1906 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1907 mpeg_er_select="error_resilience"
1908 mpegaudio_select="mpegaudiodsp"
1909 mpegaudiodsp_select="dct"
1910 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1911 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1912 vc1dsp_select="h264chroma qpeldsp startcode"
1913
1914 # decoders / encoders
1915 aac_decoder_select="imdct15 mdct sinewin"
1916 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1917 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1918 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1919 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1920 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1921 adpcm_g722_decoder_select="g722dsp"
1922 adpcm_g722_encoder_select="g722dsp"
1923 aic_decoder_select="golomb idctdsp"
1924 alac_encoder_select="lpc"
1925 als_decoder_select="bswapdsp"
1926 amrnb_decoder_select="lsp"
1927 amrwb_decoder_select="lsp"
1928 amv_decoder_select="sp5x_decoder"
1929 ape_decoder_select="bswapdsp"
1930 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1931 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1932 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1933 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1934 atrac1_decoder_select="mdct sinewin"
1935 atrac3_decoder_select="mdct"
1936 atrac3p_decoder_select="mdct sinewin"
1937 bink_decoder_select="blockdsp hpeldsp"
1938 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1939 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1940 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1941 cllc_decoder_select="bswapdsp"
1942 comfortnoise_encoder_select="lpc"
1943 cook_decoder_select="audiodsp mdct sinewin"
1944 cscd_decoder_select="lzo"
1945 cscd_decoder_suggest="zlib"
1946 dca_decoder_select="fmtconvert mdct"
1947 dds_decoder_select="texturedsp"
1948 dnxhd_decoder_select="blockdsp idctdsp"
1949 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1950 dvvideo_decoder_select="dvprofile idctdsp"
1951 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1952 dxa_decoder_deps="zlib"
1953 dxv_decoder_select="lzf texturedsp"
1954 eac3_decoder_select="ac3_decoder"
1955 eac3_encoder_select="ac3_encoder"
1956 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1957 eatgq_decoder_select="aandcttables idctdsp"
1958 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1959 exr_decoder_deps="zlib"
1960 ffv1_decoder_select="golomb rangecoder"
1961 ffv1_encoder_select="rangecoder"
1962 ffvhuff_decoder_select="huffyuv_decoder"
1963 ffvhuff_encoder_select="huffyuv_encoder"
1964 fic_decoder_select="golomb"
1965 flac_decoder_select="flacdsp golomb"
1966 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1967 flashsv_decoder_deps="zlib"
1968 flashsv_encoder_deps="zlib"
1969 flashsv2_decoder_deps="zlib"
1970 flv_decoder_select="h263_decoder"
1971 flv_encoder_select="h263_encoder"
1972 fourxm_decoder_select="blockdsp bswapdsp"
1973 fraps_decoder_select="bswapdsp huffman"
1974 g2m_decoder_deps="zlib"
1975 g2m_decoder_select="blockdsp idctdsp jpegtables"
1976 h261_decoder_select="mpeg_er mpegvideo"
1977 h261_encoder_select="aandcttables mpegvideoenc"
1978 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1979 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1980 h263i_decoder_select="h263_decoder"
1981 h263p_encoder_select="h263_encoder"
1982 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1983 h264_decoder_suggest="error_resilience"
1984 hap_decoder_select="snappy texturedsp"
1985 hap_encoder_deps="libsnappy"
1986 hap_encoder_select="texturedspenc"
1987 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1988 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1989 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1990 iac_decoder_select="imc_decoder"
1991 imc_decoder_select="bswapdsp fft mdct sinewin"
1992 indeo3_decoder_select="hpeldsp"
1993 indeo4_decoder_select="ividsp"
1994 indeo5_decoder_select="ividsp"
1995 interplay_video_decoder_select="hpeldsp"
1996 jpegls_decoder_select="golomb mjpeg_decoder"
1997 jpegls_encoder_select="golomb"
1998 jv_decoder_select="blockdsp"
1999 lagarith_decoder_select="huffyuvdsp"
2000 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2001 loco_decoder_select="golomb"
2002 magicyuv_decoder_select="huffyuvdsp"
2003 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2004 metasound_decoder_select="lsp mdct sinewin"
2005 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2006 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2007 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2008 mjpegb_decoder_select="mjpeg_decoder"
2009 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2010 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2011 mlp_decoder_select="mlp_parser"
2012 motionpixels_decoder_select="bswapdsp"
2013 mp1_decoder_select="mpegaudio"
2014 mp1float_decoder_select="mpegaudio"
2015 mp2_decoder_select="mpegaudio"
2016 mp2float_decoder_select="mpegaudio"
2017 mp3_decoder_select="mpegaudio"
2018 mp3adu_decoder_select="mpegaudio"
2019 mp3adufloat_decoder_select="mpegaudio"
2020 mp3float_decoder_select="mpegaudio"
2021 mp3on4_decoder_select="mpegaudio"
2022 mp3on4float_decoder_select="mpegaudio"
2023 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2024 mpc8_decoder_select="mpegaudiodsp"
2025 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2026 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2027 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2028 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2029 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2030 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2031 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2032 mpeg4_encoder_select="h263_encoder"
2033 msa1_decoder_select="mss34dsp"
2034 msmpeg4v1_decoder_select="h263_decoder"
2035 msmpeg4v2_decoder_select="h263_decoder"
2036 msmpeg4v2_encoder_select="h263_encoder"
2037 msmpeg4v3_decoder_select="h263_decoder"
2038 msmpeg4v3_encoder_select="h263_encoder"
2039 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2040 mts2_decoder_select="mss34dsp"
2041 mxpeg_decoder_select="mjpeg_decoder"
2042 nellymoser_decoder_select="mdct sinewin"
2043 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2044 nuv_decoder_select="idctdsp lzo"
2045 on2avc_decoder_select="mdct"
2046 opus_decoder_deps="avresample"
2047 opus_decoder_select="imdct15"
2048 png_decoder_deps="zlib"
2049 png_encoder_deps="zlib"
2050 png_encoder_select="huffyuvencdsp"
2051 prores_decoder_select="idctdsp"
2052 prores_encoder_select="fdctdsp"
2053 qcelp_decoder_select="lsp"
2054 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2055 ra_144_encoder_select="audio_frame_queue lpc"
2056 ralf_decoder_select="golomb"
2057 rscc_decoder_deps="zlib"
2058 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2059 rv10_encoder_select="h263_encoder"
2060 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2061 rv20_encoder_select="h263_encoder"
2062 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2063 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 screenpresso_decoder_deps="zlib"
2065 shorten_decoder_select="golomb"
2066 sipr_decoder_select="lsp"
2067 sp5x_decoder_select="mjpeg_decoder"
2068 svq1_decoder_select="hpeldsp"
2069 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2070 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2071 svq3_decoder_suggest="zlib"
2072 tak_decoder_select="audiodsp"
2073 tdsc_decoder_deps="zlib"
2074 tdsc_decoder_select="mjpeg_decoder"
2075 theora_decoder_select="vp3_decoder"
2076 thp_decoder_select="mjpeg_decoder"
2077 tiff_decoder_suggest="zlib"
2078 tiff_encoder_suggest="zlib"
2079 truehd_decoder_select="mlp_decoder"
2080 truemotion2_decoder_select="bswapdsp"
2081 truespeech_decoder_select="bswapdsp"
2082 tscc_decoder_deps="zlib"
2083 txd_decoder_select="texturedsp"
2084 twinvq_decoder_select="mdct lsp sinewin"
2085 utvideo_decoder_select="bswapdsp"
2086 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2087 vble_decoder_select="huffyuvdsp"
2088 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2089 vc1image_decoder_select="vc1_decoder"
2090 vorbis_decoder_select="mdct"
2091 vorbis_encoder_select="mdct"
2092 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2093 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2094 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2095 vp6a_decoder_select="vp6_decoder"
2096 vp6f_decoder_select="vp6_decoder"
2097 vp7_decoder_select="h264pred videodsp vp8dsp"
2098 vp8_decoder_select="h264pred videodsp vp8dsp"
2099 vp9_decoder_select="videodsp"
2100 webp_decoder_select="vp8_decoder"
2101 wmapro_decoder_select="mdct sinewin wma_freqs"
2102 wmav1_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_encoder_select="mdct sinewin wma_freqs"
2104 wmav2_decoder_select="mdct sinewin wma_freqs"
2105 wmav2_encoder_select="mdct sinewin wma_freqs"
2106 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2107 wmv1_decoder_select="h263_decoder"
2108 wmv1_encoder_select="h263_encoder"
2109 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2110 wmv2_encoder_select="h263_encoder wmv2dsp"
2111 wmv3_decoder_select="vc1_decoder"
2112 wmv3image_decoder_select="wmv3_decoder"
2113 zerocodec_decoder_deps="zlib"
2114 zlib_decoder_deps="zlib"
2115 zlib_encoder_deps="zlib"
2116 zmbv_decoder_deps="zlib"
2117 zmbv_encoder_deps="zlib"
2118
2119 # hardware accelerators
2120 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2121 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2122 vaapi_deps="va_va_h"
2123 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2124 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2125 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2126
2127 h263_vaapi_hwaccel_deps="vaapi"
2128 h263_vaapi_hwaccel_select="h263_decoder"
2129 h264_d3d11va_hwaccel_deps="d3d11va"
2130 h264_d3d11va_hwaccel_select="h264_decoder"
2131 h264_dxva2_hwaccel_deps="dxva2"
2132 h264_dxva2_hwaccel_select="h264_decoder"
2133 h264_mmal_decoder_deps="mmal"
2134 h264_mmal_decoder_select="mmal"
2135 h264_mmal_hwaccel_deps="mmal"
2136 h264_omx_encoder_deps="omx"
2137 h264_qsv_hwaccel_deps="libmfx"
2138 h264_vaapi_hwaccel_deps="vaapi"
2139 h264_vaapi_hwaccel_select="h264_decoder"
2140 h264_vda_hwaccel_deps="vda"
2141 h264_vda_hwaccel_select="h264_decoder"
2142 h264_vda_old_hwaccel_deps="vda"
2143 h264_vda_old_hwaccel_select="h264_decoder"
2144 h264_vdpau_hwaccel_deps="vdpau"
2145 h264_vdpau_hwaccel_select="h264_decoder"
2146 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2147 hevc_d3d11va_hwaccel_select="hevc_decoder"
2148 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2149 hevc_dxva2_hwaccel_select="hevc_decoder"
2150 hevc_qsv_hwaccel_deps="libmfx"
2151 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2152 hevc_vdpau_hwaccel_select="hevc_decoder"
2153 mpeg1_vdpau_hwaccel_deps="vdpau"
2154 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2155 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2156 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2157 mpeg2_dxva2_hwaccel_deps="dxva2"
2158 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2159 mpeg2_mmal_decoder_deps="mmal"
2160 mpeg2_mmal_decoder_select="mmal"
2161 mpeg2_mmal_hwaccel_deps="mmal"
2162 mpeg2_qsv_hwaccel_deps="libmfx"
2163 mpeg2_vaapi_hwaccel_deps="vaapi"
2164 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2165 mpeg2_vdpau_hwaccel_deps="vdpau"
2166 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2167 mpeg4_omx_encoder_deps="omx"
2168 mpeg4_vaapi_hwaccel_deps="vaapi"
2169 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2170 mpeg4_vdpau_hwaccel_deps="vdpau"
2171 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2172 vc1_d3d11va_hwaccel_deps="d3d11va"
2173 vc1_d3d11va_hwaccel_select="vc1_decoder"
2174 vc1_dxva2_hwaccel_deps="dxva2"
2175 vc1_dxva2_hwaccel_select="vc1_decoder"
2176 vc1_mmal_decoder_deps="mmal"
2177 vc1_mmal_decoder_select="mmal"
2178 vc1_mmal_hwaccel_deps="mmal"
2179 vc1_vaapi_hwaccel_deps="vaapi"
2180 vc1_vaapi_hwaccel_select="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps="vdpau"
2182 vc1_vdpau_hwaccel_select="vc1_decoder"
2183 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2187
2188 # hardware-accelerated codecs
2189 nvenc_deps_any="dlopen LoadLibrary"
2190 nvenc_extralibs='$ldl'
2191 omx_deps="dlopen pthreads"
2192 omx_extralibs='$ldl'
2193 qsvdec_select="qsv"
2194 qsvenc_select="qsv"
2195 vaapi_encode_deps="vaapi"
2196
2197 hwupload_cuda_filter_deps="cuda"
2198 scale_npp_filter_deps="cuda libnpp"
2199
2200 h264_nvenc_encoder_deps="nvenc"
2201 h264_qsv_decoder_deps="libmfx"
2202 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2203 h264_qsv_encoder_deps="libmfx"
2204 h264_qsv_encoder_select="qsvenc"
2205 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2206 h264_vaapi_encoder_select="vaapi_encode golomb"
2207
2208 hevc_nvenc_encoder_deps="nvenc"
2209 hevc_qsv_decoder_deps="libmfx"
2210 hevc_qsv_encoder_deps="libmfx"
2211 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2212 hevc_qsv_encoder_select="qsvenc"
2213 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2214 hevc_vaapi_encoder_select="vaapi_encode golomb"
2215 mpeg2_qsv_decoder_deps="libmfx"
2216 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2217 mpeg2_qsv_encoder_deps="libmfx"
2218 mpeg2_qsv_encoder_select="qsvenc"
2219
2220 nvenc_h264_encoder_deps="nvenc"
2221 nvenc_hevc_encoder_deps="nvenc"
2222
2223 # parsers
2224 h264_parser_select="golomb h264dsp h264parse"
2225 hevc_parser_select="golomb"
2226 mpegvideo_parser_select="mpegvideo"
2227 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2228 vc1_parser_select="vc1dsp"
2229
2230 # bitstream_filters
2231 mjpeg2jpeg_bsf_select="jpegtables"
2232
2233 # external libraries
2234 libdcadec_decoder_deps="libdcadec"
2235 libfaac_encoder_deps="libfaac"
2236 libfaac_encoder_select="audio_frame_queue"
2237 libfdk_aac_decoder_deps="libfdk_aac"
2238 libfdk_aac_encoder_deps="libfdk_aac"
2239 libfdk_aac_encoder_select="audio_frame_queue"
2240 libgsm_decoder_deps="libgsm"
2241 libgsm_encoder_deps="libgsm"
2242 libgsm_ms_decoder_deps="libgsm"
2243 libgsm_ms_encoder_deps="libgsm"
2244 libilbc_decoder_deps="libilbc"
2245 libilbc_encoder_deps="libilbc"
2246 libkvazaar_encoder_deps="libkvazaar"
2247 libmp3lame_encoder_deps="libmp3lame"
2248 libmp3lame_encoder_select="audio_frame_queue"
2249 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2250 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2251 libopencore_amrnb_encoder_select="audio_frame_queue"
2252 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2253 libopenh264_decoder_deps="libopenh264"
2254 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2255 libopenh264_encoder_deps="libopenh264"
2256 libopenjpeg_decoder_deps="libopenjpeg"
2257 libopenjpeg_encoder_deps="libopenjpeg"
2258 libopus_decoder_deps="libopus"
2259 libopus_encoder_deps="libopus"
2260 libopus_encoder_select="audio_frame_queue"
2261 libschroedinger_decoder_deps="libschroedinger"
2262 libschroedinger_encoder_deps="libschroedinger"
2263 libspeex_decoder_deps="libspeex"
2264 libspeex_encoder_deps="libspeex"
2265 libspeex_encoder_select="audio_frame_queue"
2266 libtheora_encoder_deps="libtheora"
2267 libtwolame_encoder_deps="libtwolame"
2268 libvo_aacenc_encoder_deps="libvo_aacenc"
2269 libvo_aacenc_encoder_select="audio_frame_queue"
2270 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2271 libvorbis_encoder_deps="libvorbis"
2272 libvorbis_encoder_select="audio_frame_queue"
2273 libvpx_vp8_decoder_deps="libvpx"
2274 libvpx_vp8_encoder_deps="libvpx"
2275 libvpx_vp9_decoder_deps="libvpx"
2276 libvpx_vp9_encoder_deps="libvpx"
2277 libwavpack_encoder_deps="libwavpack"
2278 libwebp_encoder_deps="libwebp"
2279 libx262_encoder_deps="libx262"
2280 libx264_encoder_deps="libx264"
2281 libx265_encoder_deps="libx265"
2282 libxavs_encoder_deps="libxavs"
2283 libxvid_encoder_deps="libxvid"
2284
2285 # demuxers / muxers
2286 ac3_demuxer_select="ac3_parser"
2287 asf_demuxer_select="riffdec"
2288 asf_muxer_select="riffenc"
2289 asf_stream_muxer_select="asf_muxer"
2290 avi_demuxer_select="iso_media riffdec"
2291 avi_muxer_select="riffenc"
2292 avisynth_demuxer_deps="avisynth"
2293 avisynth_demuxer_select="riffdec"
2294 caf_demuxer_select="iso_media riffdec"
2295 dash_muxer_select="mp4_muxer"
2296 dirac_demuxer_select="dirac_parser"
2297 dv_demuxer_select="dvprofile"
2298 dv_muxer_select="dvprofile"
2299 dxa_demuxer_select="riffdec"
2300 eac3_demuxer_select="ac3_parser"
2301 f4v_muxer_select="mov_muxer"
2302 flac_demuxer_select="flac_parser"
2303 hds_muxer_select="flv_muxer"
2304 hls_muxer_select="mpegts_muxer"
2305 ipod_muxer_select="mov_muxer"
2306 ismv_muxer_select="mov_muxer"
2307 matroska_audio_muxer_select="matroska_muxer"
2308 matroska_demuxer_select="iso_media riffdec"
2309 matroska_demuxer_suggest="bzlib lzo zlib"
2310 matroska_muxer_select="iso_media riffenc"
2311 mmf_muxer_select="riffenc"
2312 mov_demuxer_select="iso_media riffdec"
2313 mov_demuxer_suggest="zlib"
2314 mov_muxer_select="iso_media riffenc rtpenc_chain"
2315 mp3_demuxer_select="mpegaudio_parser"
2316 mp4_muxer_select="mov_muxer"
2317 mpegts_demuxer_select="iso_media"
2318 mpegts_muxer_select="adts_muxer latm_muxer"
2319 mpegtsraw_demuxer_select="mpegts_demuxer"
2320 mxf_d10_muxer_select="mxf_muxer"
2321 nut_muxer_select="riffenc"
2322 nuv_demuxer_select="riffdec"
2323 oga_muxer_select="ogg_muxer"
2324 ogg_demuxer_select="dirac_parse"
2325 opus_muxer_select="ogg_muxer"
2326 psp_muxer_select="mov_muxer"
2327 rtp_demuxer_select="sdp_demuxer"
2328 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2329 rtsp_demuxer_select="http_protocol rtpdec"
2330 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2331 sap_demuxer_select="sdp_demuxer"
2332 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2333 sdp_demuxer_select="rtpdec"
2334 smoothstreaming_muxer_select="ismv_muxer"
2335 spdif_muxer_select="aac_parser"
2336 spx_muxer_select="ogg_muxer"
2337 swf_demuxer_suggest="zlib"
2338 tak_demuxer_select="tak_parser"
2339 tg2_muxer_select="mov_muxer"
2340 tgp_muxer_select="mov_muxer"
2341 w64_demuxer_select="wav_demuxer"
2342 wav_demuxer_select="riffdec"
2343 wav_muxer_select="riffenc"
2344 webm_muxer_select="iso_media riffenc"
2345 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2346 wtv_demuxer_select="mpegts_demuxer riffdec"
2347 xmv_demuxer_select="riffdec"
2348 xwma_demuxer_select="riffdec"
2349
2350 # indevs / outdevs
2351 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2352 alsa_outdev_deps="alsa_asoundlib_h"
2353 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2354 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2355 dv1394_indev_deps="dv1394"
2356 dv1394_indev_select="dv_demuxer"
2357 fbdev_indev_deps="linux_fb_h"
2358 jack_indev_deps="jack_jack_h"
2359 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2360 libcdio_indev_deps="libcdio"
2361 libdc1394_indev_deps="libdc1394"
2362 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2363 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2364 pulse_indev_deps="libpulse"
2365 sndio_indev_deps="sndio_h"
2366 sndio_outdev_deps="sndio_h"
2367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2369 vfwcap_indev_extralibs="-lavicap32"
2370 x11grab_xcb_indev_deps="libxcb"
2371
2372 # protocols
2373 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2374 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2375 ffrtmpcrypt_protocol_select="tcp_protocol"
2376 ffrtmphttp_protocol_deps="!librtmp_protocol"
2377 ffrtmphttp_protocol_select="http_protocol"
2378 gopher_protocol_select="network"
2379 http_protocol_select="tcp_protocol"
2380 httpproxy_protocol_select="tcp_protocol"
2381 https_protocol_select="tls_protocol"
2382 icecast_protocol_select="http_protocol"
2383 librtmp_protocol_deps="librtmp"
2384 librtmpe_protocol_deps="librtmp"
2385 librtmps_protocol_deps="librtmp"
2386 librtmpt_protocol_deps="librtmp"
2387 librtmpte_protocol_deps="librtmp"
2388 mmsh_protocol_select="http_protocol"
2389 mmst_protocol_select="network"
2390 rtmp_protocol_deps="!librtmp_protocol"
2391 rtmp_protocol_select="tcp_protocol"
2392 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2393 rtmps_protocol_deps="!librtmp_protocol"
2394 rtmps_protocol_select="tls_protocol"
2395 rtmpt_protocol_select="ffrtmphttp_protocol"
2396 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2397 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2398 rtp_protocol_select="udp_protocol"
2399 sctp_protocol_deps="struct_sctp_event_subscribe"
2400 sctp_protocol_select="network"
2401 srtp_protocol_select="rtp_protocol srtp"
2402 tcp_protocol_select="network"
2403 tls_gnutls_protocol_deps="gnutls"
2404 tls_gnutls_protocol_select="tcp_protocol"
2405 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2406 tls_openssl_protocol_select="tcp_protocol"
2407 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2408 udp_protocol_select="network"
2409 unix_protocol_deps="sys_un_h"
2410 unix_protocol_select="network"
2411
2412 # filters
2413 blackframe_filter_deps="gpl"
2414 boxblur_filter_deps="gpl"
2415 bs2b_filter_deps="libbs2b"
2416 cropdetect_filter_deps="gpl"
2417 deinterlace_qsv_filter_deps="libmfx"
2418 delogo_filter_deps="gpl"
2419 drawtext_filter_deps="libfreetype"
2420 frei0r_filter_deps="frei0r dlopen"
2421 frei0r_filter_extralibs='$ldl'
2422 frei0r_src_filter_deps="frei0r dlopen"
2423 frei0r_src_filter_extralibs='$ldl'
2424 hqdn3d_filter_deps="gpl"
2425 interlace_filter_deps="gpl"
2426 ocv_filter_deps="libopencv"
2427 resample_filter_deps="avresample"
2428 scale_filter_deps="swscale"
2429 scale_qsv_filter_deps="libmfx"
2430 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2431
2432 # examples
2433 avcodec_example_deps="avcodec avutil"
2434 filter_audio_example_deps="avfilter avutil"
2435 metadata_example_deps="avformat avutil"
2436 output_example_deps="avcodec avformat avutil swscale"
2437 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2438 transcode_aac_example_deps="avcodec avformat avresample"
2439
2440 # libraries, in linking order
2441 avcodec_deps="avutil"
2442 avdevice_deps="avformat avcodec avutil"
2443 avfilter_deps="avutil"
2444 avformat_deps="avcodec avutil"
2445 avresample_deps="avutil"
2446 swscale_deps="avutil"
2447
2448 # programs
2449 avconv_deps="avcodec avfilter avformat avresample swscale"
2450 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2451                fps_filter null_filter resample_filter scale_filter
2452                trim_filter"
2453 avplay_deps="avcodec avfilter avformat avresample sdl"
2454 avplay_libs='$sdl_libs'
2455 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2456 avprobe_deps="avcodec avformat"
2457
2458 # documentation
2459 pod2man_deps="doc"
2460 texi2html_deps="doc"
2461
2462 # default parameters
2463
2464 logfile="config.log"
2465
2466 # installation paths
2467 prefix_default="/usr/local"
2468 bindir_default='${prefix}/bin'
2469 datadir_default='${prefix}/share/avconv'
2470 docdir_default='${prefix}/share/doc/libav'
2471 incdir_default='${prefix}/include'
2472 libdir_default='${prefix}/lib'
2473 mandir_default='${prefix}/share/man'
2474 shlibdir_default="$libdir_default"
2475
2476 # toolchain
2477 ar_default="ar"
2478 cc_default="gcc"
2479 host_cc_default="gcc"
2480 cp_f="cp -f"
2481 ln_s="ln -s -f"
2482 nm_default="nm -g"
2483 objformat="elf"
2484 pkg_config_default=pkg-config
2485 ranlib="ranlib"
2486 strip="strip"
2487 version_script='--version-script'
2488 yasmexe="yasm"
2489
2490 # machine
2491 arch_default=$(uname -m)
2492 cpu="generic"
2493 intrinsics="none"
2494
2495 # OS
2496 target_os_default=$(tolower $(uname -s))
2497 host_os=$target_os_default
2498
2499 # configurable options
2500 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2501
2502 enable asm
2503 enable debug
2504 enable doc
2505 enable faan faandct faanidct
2506 enable optimizations
2507 enable safe_bitstream_reader
2508 enable static
2509 enable swscale_alpha
2510 enable valgrind_backtrace
2511
2512 # By default, enable only those hwaccels that have no external dependencies.
2513 enable d3d11va dxva2 vda vdpau
2514
2515 # build settings
2516 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2517 LIBPREF="lib"
2518 LIBSUF=".a"
2519 FULLNAME='$(NAME)$(BUILDSUF)'
2520 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2521 SLIBPREF="lib"
2522 SLIBSUF=".so"
2523 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2524 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2525 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2526 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2527 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2528 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2529 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2530
2531 asflags_filter=echo
2532 cflags_filter=echo
2533 ldflags_filter=echo
2534
2535 AS_C='-c'
2536 AS_O='-o $@'
2537 CC_C='-c'
2538 CC_E='-E -o $@'
2539 CC_O='-o $@'
2540 OBJCC_C='-c'
2541 OBJCC_E='-E -o $@'
2542 OBJCC_O='-o $@'
2543 LD_O='-o $@'
2544 LD_LIB='-l%'
2545 LD_PATH='-L'
2546 HOSTCC_C='-c'
2547 HOSTCC_E='-E -o $@'
2548 HOSTCC_O='-o $@'
2549 HOSTLD_O='-o $@'
2550
2551 host_libs='-lm'
2552 host_cflags_filter=echo
2553 host_ldflags_filter=echo
2554
2555 target_path='$(CURDIR)'
2556
2557 # since the object filename is not given with the -MM flag, the compiler
2558 # is only able to print the basename, and we must add the path ourselves
2559 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2560 DEPFLAGS='-MM'
2561
2562 # find source path
2563 if test -f configure; then
2564     source_path=.
2565 else
2566     source_path=$(cd $(dirname "$0"); pwd)
2567     echo "$source_path" | grep -q '[[:blank:]]' &&
2568         die "Out of tree builds are impossible with whitespace in source path."
2569     test -e "$source_path/config.h" &&
2570         die "Out of tree builds are impossible with config.h in source dir."
2571 fi
2572
2573 for v in "$@"; do
2574     r=${v#*=}
2575     l=${v%"$r"}
2576     r=$(sh_quote "$r")
2577     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2578 done
2579
2580 find_things(){
2581     thing=$1
2582     pattern=$2
2583     file=$source_path/$3
2584     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2585 }
2586
2587 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2588 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2589 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2590 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2591 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2592 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2593 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2594 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2595 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2596
2597 find_things_extern(){
2598     thing=$1
2599     pattern=$2
2600     file=$source_path/$3
2601     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2602 }
2603
2604 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2605 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2606
2607 ALL_COMPONENTS="
2608     $BSF_LIST
2609     $DECODER_LIST
2610     $DEMUXER_LIST
2611     $ENCODER_LIST
2612     $FILTER_LIST
2613     $HWACCEL_LIST
2614     $INDEV_LIST
2615     $MUXER_LIST
2616     $OUTDEV_LIST
2617     $PARSER_LIST
2618     $PROTOCOL_LIST
2619 "
2620
2621 for n in $COMPONENT_LIST; do
2622     v=$(toupper ${n%s})_LIST
2623     eval enable \$$v
2624     eval ${n}_if_any="\$$v"
2625 done
2626
2627 enable $ARCH_EXT_LIST
2628
2629 die_unknown(){
2630     echo "Unknown option \"$1\"."
2631     echo "See $0 --help for available options."
2632     exit 1
2633 }
2634
2635 print_3_columns() {
2636     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2637 }
2638
2639 show_list() {
2640     suffix=_$1
2641     shift
2642     echo $* | sed s/$suffix//g | print_3_columns
2643     exit 0
2644 }
2645
2646 rand_list(){
2647     IFS=', '
2648     set -- $*
2649     unset IFS
2650     for thing; do
2651         comp=${thing%:*}
2652         prob=${thing#$comp}
2653         prob=${prob#:}
2654         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2655         echo "prob ${prob:-0.5}"
2656         printf '%s\n' $comp
2657     done
2658 }
2659
2660 do_random(){
2661     action=$1
2662     shift
2663     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2664     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2665 }
2666
2667 for opt do
2668     optval="${opt#*=}"
2669     case "$opt" in
2670         --extra-ldflags=*)
2671             add_ldflags $optval
2672         ;;
2673         --extra-ldexeflags=*)
2674             add_ldexeflags $optval
2675         ;;
2676         --extra-libs=*)
2677             add_extralibs $optval
2678         ;;
2679         --disable-devices)
2680             disable $INDEV_LIST $OUTDEV_LIST
2681         ;;
2682         --enable-debug=*)
2683             debuglevel="$optval"
2684         ;;
2685         --disable-programs)
2686             disable $PROGRAM_LIST
2687         ;;
2688         --disable-everything)
2689             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2690         ;;
2691         --disable-all)
2692             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2693             disable $LIBRARY_LIST $PROGRAM_LIST doc
2694         ;;
2695         --enable-random|--disable-random)
2696             action=${opt%%-random}
2697             do_random ${action#--} $COMPONENT_LIST
2698         ;;
2699         --enable-random=*|--disable-random=*)
2700             action=${opt%%-random=*}
2701             do_random ${action#--} $optval
2702         ;;
2703         --enable-*=*|--disable-*=*)
2704             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2705             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2706             eval list=\$$(toupper $thing)_LIST
2707             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2708             $action $(filter "$name" $list)
2709         ;;
2710         --enable-avserver|--disable-avserver*)
2711             warn "avserver has been removed, the ${opt} option is only"\
2712                  "provided for compatibility and will be removed in the future"
2713         ;;
2714         --enable-?*|--disable-?*)
2715             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2716             if is_in $option $COMPONENT_LIST; then
2717                 test $action = disable && action=unset
2718                 eval $action \$$(toupper ${option%s})_LIST
2719             elif is_in $option $CMDLINE_SELECT; then
2720                 $action $option
2721             else
2722                 die_unknown $opt
2723             fi
2724         ;;
2725         --list-*)
2726             NAME="${opt#--list-}"
2727             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2728             NAME=${NAME%s}
2729             eval show_list $NAME \$$(toupper $NAME)_LIST
2730         ;;
2731         --help|-h) show_help
2732         ;;
2733         *)
2734             optname="${opt%%=*}"
2735             optname="${optname#--}"
2736             optname=$(echo "$optname" | sed 's/-/_/g')
2737             if is_in $optname $CMDLINE_SET; then
2738                 eval $optname='$optval'
2739             elif is_in $optname $CMDLINE_APPEND; then
2740                 append $optname "$optval"
2741             else
2742                 die_unknown $opt
2743             fi
2744         ;;
2745     esac
2746 done
2747
2748 for e in $env; do
2749     eval "export $e"
2750 done
2751
2752 disabled logging && logfile=/dev/null
2753
2754 # Disable all the library-specific components if the library itself
2755 # is disabled, see AVCODEC_LIST and following _LIST variables.
2756
2757 disable_components(){
2758     disabled ${1} && disable $(
2759         eval components="\$$(toupper ${1})_COMPONENTS"
2760         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2761     )
2762 }
2763
2764 map 'disable_components $v' $LIBRARY_LIST
2765
2766 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2767 set >> $logfile
2768
2769 case "$toolchain" in
2770     *-asan)
2771         cc_default="${toolchain%-asan}"
2772         add_cflags  -fsanitize=address
2773         add_ldflags -fsanitize=address
2774     ;;
2775     *-msan)
2776         cc_default="${toolchain%-msan}"
2777         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2778         add_ldflags -fsanitize=memory
2779     ;;
2780     *-tsan)
2781         cc_default="${toolchain%-tsan}"
2782         add_cflags  -fsanitize=thread -pie
2783         add_ldflags -fsanitize=thread -pie
2784         case "$toolchain" in
2785             gcc-tsan)
2786                 add_cflags  -fPIC
2787                 add_ldflags -fPIC
2788                 ;;
2789         esac
2790     ;;
2791     *-usan)
2792         cc_default="${toolchain%-usan}"
2793         add_cflags  -fsanitize=undefined
2794         add_ldflags -fsanitize=undefined
2795         case "$toolchain" in
2796             clang-usan)
2797                 add_cflags -O1
2798                 ;;
2799         esac
2800     ;;
2801     valgrind-*)
2802         target_exec_default="valgrind"
2803         case "$toolchain" in
2804             valgrind-massif)
2805                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2806                 ;;
2807             valgrind-memcheck)
2808                 target_exec_args="--track-origins=yes --leak-check=full"
2809                 ;;
2810         esac
2811     ;;
2812     msvc)
2813         # Check whether the current MSVC version needs the C99 converter.
2814         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2815         # support enough of C99 to build libav. Default to the new
2816         # behaviour if the regexp was unable to match anything, since this
2817         # successfully parses the version number of existing supported
2818         # versions that require the converter (MSVC 2010 and 2012).
2819         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2820         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2821             cc_default="cl"
2822         else
2823             cc_default="c99wrap cl"
2824         fi
2825         ld_default="$source_path/compat/windows/mslink"
2826         nm_default="dumpbin -symbols"
2827         ar_default="lib"
2828         case "$arch" in
2829         arm*)
2830             as_default="armasm"
2831             ;;
2832         esac
2833         target_os_default="win32"
2834         # Use a relative path for TMPDIR. This makes sure all the
2835         # ffconf temp files are written with a relative path, avoiding
2836         # issues with msys/win32 path conversion for MSVC parameters
2837         # such as -Fo<file> or -out:<file>.
2838         TMPDIR=.
2839     ;;
2840     icl)
2841         cc_default="icl"
2842         ld_default="xilink"
2843         nm_default="dumpbin -symbols"
2844         ar_default="xilib"
2845         target_os_default="win32"
2846         TMPDIR=.
2847     ;;
2848     gcov)
2849         add_cflags  -fprofile-arcs -ftest-coverage
2850         add_ldflags -fprofile-arcs -ftest-coverage
2851     ;;
2852     llvm-cov)
2853         add_cflags -fprofile-arcs -ftest-coverage
2854         add_ldflags --coverage
2855     ;;
2856     hardened)
2857         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2858         add_cflags   -fno-strict-overflow -fstack-protector-all
2859         add_ldflags  -Wl,-z,relro -Wl,-z,now
2860     ;;
2861     ?*)
2862         die "Unknown toolchain $toolchain"
2863     ;;
2864 esac
2865
2866 test -n "$cross_prefix" && enable cross_compile
2867
2868 if enabled cross_compile; then
2869     test -n "$arch" && test -n "$target_os" ||
2870         die "Must specify target arch and OS when cross-compiling"
2871 fi
2872
2873 ar_default="${cross_prefix}${ar_default}"
2874 cc_default="${cross_prefix}${cc_default}"
2875 occ_default="${cross_prefix}${occ_default}"
2876 nm_default="${cross_prefix}${nm_default}"
2877 pkg_config_default="${cross_prefix}${pkg_config_default}"
2878 ranlib="${cross_prefix}${ranlib}"
2879 strip="${cross_prefix}${strip}"
2880
2881 sysinclude_default="${sysroot}/usr/include"
2882
2883 set_default arch cc pkg_config sysinclude target_exec target_os
2884 enabled cross_compile || host_cc_default=$cc
2885 set_default host_cc
2886
2887 if ! $pkg_config --version >/dev/null 2>&1; then
2888     warn "$pkg_config not found, library detection may fail."
2889     pkg_config=false
2890 fi
2891
2892 exesuf() {
2893     case $1 in
2894         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2895     esac
2896 }
2897
2898 EXESUF=$(exesuf $target_os)
2899 HOSTEXESUF=$(exesuf $host_os)
2900
2901 # set temporary file name
2902 : ${TMPDIR:=$TEMPDIR}
2903 : ${TMPDIR:=$TMP}
2904 : ${TMPDIR:=/tmp}
2905
2906 if ! check_cmd mktemp -u XXXXXX; then
2907     # simple replacement for missing mktemp
2908     # NOT SAFE FOR GENERAL USE
2909     mktemp(){
2910         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2911     }
2912 fi
2913
2914 tmpfile(){
2915     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2916         (set -C; exec > $tmp) 2>/dev/null ||
2917         die "Unable to create temporary file in $TMPDIR."
2918     append TMPFILES $tmp
2919     eval $1=$tmp
2920 }
2921
2922 trap 'rm -f -- $TMPFILES' EXIT
2923
2924 tmpfile TMPASM .asm
2925 tmpfile TMPC   .c
2926 tmpfile TMPE   $EXESUF
2927 tmpfile TMPH   .h
2928 tmpfile TMPO   .o
2929 tmpfile TMPS   .S
2930 tmpfile TMPSH  .sh
2931 tmpfile TMPV   .ver
2932
2933 unset -f mktemp
2934
2935 chmod +x $TMPE
2936
2937 # make sure we can execute files in $TMPDIR
2938 cat > $TMPSH 2>> $logfile <<EOF
2939 #! /bin/sh
2940 EOF
2941 chmod +x $TMPSH >> $logfile 2>&1
2942 if ! $TMPSH >> $logfile 2>&1; then
2943     cat <<EOF
2944 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2945 variable to another directory and make sure that it is not mounted noexec.
2946 EOF
2947     die "Sanity test failed."
2948 fi
2949
2950 armasm_flags(){
2951     for flag; do
2952         case $flag in
2953             # Filter out MSVC cl.exe options from cflags that shouldn't
2954             # be passed to gas-preprocessor
2955             -M[TD]*)                                            ;;
2956             *)                  echo $flag                      ;;
2957         esac
2958    done
2959 }
2960
2961 ccc_flags(){
2962     for flag; do
2963         case $flag in
2964             -std=c99)           echo -c99                       ;;
2965             -mcpu=*)            echo -arch ${flag#*=}           ;;
2966             -mieee)             echo -ieee                      ;;
2967             -O*|-fast)          echo $flag                      ;;
2968             -fno-math-errno)    echo -assume nomath_errno       ;;
2969             -g)                 echo -g3                        ;;
2970             -Wall)              echo -msg_enable level2         ;;
2971             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2972             -Wl,*)              echo $flag                      ;;
2973             -f*|-W*)                                            ;;
2974             *)                  echo $flag                      ;;
2975         esac
2976    done
2977 }
2978
2979 cparser_flags(){
2980     for flag; do
2981         case $flag in
2982             -Wno-switch)             echo -Wno-switch-enum ;;
2983             -Wno-format-zero-length) ;;
2984             -Wdisabled-optimization) ;;
2985             -Wno-pointer-sign)       echo -Wno-other ;;
2986             *)                       echo $flag ;;
2987         esac
2988     done
2989 }
2990
2991 msvc_common_flags(){
2992     for flag; do
2993         case $flag in
2994             # In addition to specifying certain flags under the compiler
2995             # specific filters, they must be specified here as well or else the
2996             # generic catch all at the bottom will print the original flag.
2997             -Wall)                ;;
2998             -std=c99)             ;;
2999             # Common flags
3000             -fomit-frame-pointer) ;;
3001             -g)                   echo -Z7 ;;
3002             -fno-math-errno)      ;;
3003             -fno-common)          ;;
3004             -fno-signed-zeros)    ;;
3005             -fPIC)                ;;
3006             -mthumb)              ;;
3007             -march=*)             ;;
3008             -lz)                  echo zlib.lib ;;
3009             -lavifil32)           echo vfw32.lib ;;
3010             -lavicap32)           echo vfw32.lib user32.lib ;;
3011             -lx264)               echo libx264.lib ;;
3012             -l*)                  echo ${flag#-l}.lib ;;
3013             -L*)                  echo -libpath:${flag#-L} ;;
3014             *)                    echo $flag ;;
3015         esac
3016     done
3017 }
3018
3019 msvc_flags(){
3020     msvc_common_flags "$@"
3021     for flag; do
3022         case $flag in
3023             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3024                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3025                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3026                                        -wd4273 -wd4554 -wd4701 ;;
3027         esac
3028     done
3029 }
3030
3031 icl_flags(){
3032     msvc_common_flags "$@"
3033     for flag; do
3034         case $flag in
3035             # Despite what Intel's documentation says -Wall, which is supported
3036             # on Windows, does enable remarks so disable them here.
3037             -Wall)                echo $flag -Qdiag-disable:remark ;;
3038             -std=c99)             echo -Qstd=c99 ;;
3039         esac
3040     done
3041 }
3042
3043 pgi_flags(){
3044     for flag; do
3045         case $flag in
3046             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3047             -fomit-frame-pointer) echo -Mnoframe ;;
3048             -g)                   echo -gopt ;;
3049             *)                    echo $flag ;;
3050         esac
3051     done
3052 }
3053
3054 suncc_flags(){
3055     for flag; do
3056         case $flag in
3057             -march=*|-mcpu=*)
3058                 case "${flag#*=}" in
3059                     native)                   echo -xtarget=native       ;;
3060                     v9|niagara)               echo -xarch=sparc          ;;
3061                     ultrasparc)               echo -xarch=sparcvis       ;;
3062                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3063                     i586|pentium)             echo -xchip=pentium        ;;
3064                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3065                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3066                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3067                     pentium4*)          echo -xtarget=pentium4           ;;
3068                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3069                     *-sse3)             echo -xarch=sse3                 ;;
3070                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3071                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3072                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3073                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3074                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3075                     k8|opteron|athlon64|athlon-fx)
3076                                                echo -xarch=sse2a         ;;
3077                     athlon*)                   echo -xarch=pentium_proa  ;;
3078                 esac
3079                 ;;
3080             -std=c99)             echo -xc99              ;;
3081             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3082             -fPIC)                echo -KPIC -xcode=pic32 ;;
3083             -W*,*)                echo $flag              ;;
3084             -f*-*|-W*|-mimpure-text)                      ;;
3085             -shared)              echo -G                 ;;
3086             *)                    echo $flag              ;;
3087         esac
3088     done
3089 }
3090
3091 tms470_flags(){
3092     for flag; do
3093         case $flag in
3094             -march=*|-mcpu=*)
3095                 case "${flag#*=}" in
3096                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3097                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3098                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3099                     armv6*|arm11*)          echo -mv=6   ;;
3100                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3101                                             echo -mv=5e  ;;
3102                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3103                 esac
3104                 ;;
3105             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3106             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3107             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3108             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3109             -msoft-float)   echo --float_support=vfplib       ;;
3110             -O[0-3]|-mf=*)  echo $flag                        ;;
3111             -g)             echo -g -mn                       ;;
3112             -pds=*)         echo $flag                        ;;
3113             -D*|-I*)        echo $flag                        ;;
3114             --gcc|--abi=*)  echo $flag                        ;;
3115             -me)            echo $flag                        ;;
3116         esac
3117     done
3118 }
3119
3120 probe_cc(){
3121     pfx=$1
3122     _cc=$2
3123
3124     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3125     unset _ld_o _ldflags _ld_lib _ld_path
3126     unset _depflags _DEPCMD _DEPFLAGS
3127     _flags_filter=echo
3128
3129     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3130         _type=llvm_gcc
3131         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3132         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3133         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3134         _cflags_speed='-O3'
3135         _cflags_size='-Os'
3136     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3137         _type=gcc
3138         gcc_version=$($_cc --version | head -n1)
3139         gcc_basever=$($_cc -dumpversion)
3140         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3141         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3142         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3143         if ! $_cc -dumpversion | grep -q '^2\.'; then
3144             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3145         fi
3146         _cflags_speed='-O3'
3147         _cflags_size='-Os'
3148     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3149         _type=icc
3150         _ident=$($_cc --version | head -n1)
3151         _depflags='-MMD'
3152         _cflags_speed='-O3'
3153         _cflags_size='-Os'
3154         _cflags_noopt='-O1'
3155     elif $_cc -v 2>&1 | grep -q xlc; then
3156         _type=xlc
3157         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3158         _cflags_speed='-O5'
3159         _cflags_size='-O5 -qcompact'
3160     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3161         _type=ccc
3162         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3163         _DEPFLAGS='-M'
3164         _cflags_speed='-fast'
3165         _cflags_size='-O1'
3166         _flags_filter=ccc_flags
3167     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3168         test -d "$sysroot" || die "No valid sysroot specified."
3169         _type=armcc
3170         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3171         armcc_conf="$PWD/armcc.conf"
3172         $_cc --arm_linux_configure                 \
3173              --arm_linux_config_file="$armcc_conf" \
3174              --configure_sysroot="$sysroot"        \
3175              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3176              die "Error creating armcc configuration file."
3177         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3178         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3179         as_default="${cross_prefix}gcc"
3180         _depflags='-MMD'
3181         _cflags_speed='-O3'
3182         _cflags_size='-Os'
3183     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3184         _type=tms470
3185         _ident=$($_cc -version | head -n1 | tr -s ' ')
3186         _flags='--gcc --abi=eabi -me'
3187         _cc_e='-ppl -fe=$@'
3188         _cc_o='-fe=$@'
3189         _depflags='-ppa -ppd=$(@:.o=.d)'
3190         _cflags_speed='-O3 -mf=5'
3191         _cflags_size='-O3 -mf=2'
3192         _flags_filter=tms470_flags
3193     elif $_cc -v 2>&1 | grep -q clang; then
3194         _type=clang
3195         _ident=$($_cc --version 2>/dev/null | head -n1)
3196         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3197         _cflags_speed='-O3'
3198         _cflags_size='-Os'
3199     elif $_cc -V 2>&1 | grep -q Sun; then
3200         _type=suncc
3201         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3202         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3203         _DEPFLAGS='-xM1 -xc99'
3204         _ldflags='-std=c99'
3205         _cflags_speed='-O5'
3206         _cflags_size='-O5 -xspace'
3207         _flags_filter=suncc_flags
3208     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3209         _type=pathscale
3210         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3211         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3212         _cflags_speed='-O2'
3213         _cflags_size='-Os'
3214         _flags_filter='filter_out -Wdisabled-optimization'
3215     elif $_cc -v 2>&1 | grep -q Open64; then
3216         _type=open64
3217         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3218         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3219         _cflags_speed='-O2'
3220         _cflags_size='-Os'
3221         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3222     elif $_cc -V 2>&1 | grep -q Portland; then
3223         _type=pgi
3224         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3225         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3226         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3227         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3228         _cflags_noopt="-O1"
3229         _flags_filter=pgi_flags
3230     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3231         _type=armasm
3232         _ident=$($_cc | head -n1)
3233         # 4509: "This form of conditional instruction is deprecated"
3234         _flags="-nologo -ignore 4509"
3235         _flags_filter=armasm_flags
3236     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3237         _type=msvc
3238         _ident=$($_cc 2>&1 | head -n1)
3239         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3240         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3241         _cflags_speed="-O2"
3242         _cflags_size="-O1"
3243         if $_cc -nologo- 2>&1 | grep -q Linker; then
3244             _ld_o='-out:$@'
3245         else
3246             _ld_o='-Fe$@'
3247         fi
3248         _cc_o='-Fo$@'
3249         _cc_e='-P -Fi$@'
3250         _flags_filter=msvc_flags
3251         _ld_lib='lib%.a'
3252         _ld_path='-libpath:'
3253         _flags='-nologo'
3254     elif $_cc 2>&1 | grep -q Intel; then
3255         _type=icl
3256         _ident=$($_cc 2>&1 | head -n1)
3257         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3258         # Not only is O3 broken on 13.x+ but it is slower on all previous
3259         # versions (tested) as well.
3260         _cflags_speed="-O2"
3261         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3262         if $_cc 2>&1 | grep -q Linker; then
3263             _ld_o='-out:$@'
3264         else
3265             _ld_o='-Fe$@'
3266         fi
3267         _cc_o='-Fo$@'
3268         _cc_e='-P'
3269         _flags_filter=icl_flags
3270         _ld_lib='lib%.a'
3271         _ld_path='-libpath:'
3272         # -Qdiag-error to make icl error when seeing certain unknown arguments
3273         _flags='-nologo -Qdiag-error:4044,10157'
3274         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3275         # with MSVC which enables it by default.
3276         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3277     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3278         # lld can emulate multiple different linkers; in ms link.exe mode,
3279         # the -? parameter gives the help output which contains an identifyable
3280         # string, while it gives an error in other modes.
3281         _type=lld-link
3282         # The link.exe mode doesn't have a switch for getting the version,
3283         # but we can force it back to gnu mode and get the version from there.
3284         _ident=$($_cc -flavor gnu --version)
3285         _ld_o='-out:$@'
3286         _flags_filter=msvc_flags
3287         _ld_lib='lib%.a'
3288         _ld_path='-libpath:'
3289     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3290         _type=cparser
3291         _ident=$($_cc --version | head -n1)
3292         _depflags='-MMD'
3293         _cflags_speed='-O4'
3294         _cflags_size='-O2'
3295         _flags_filter=cparser_flags
3296     fi
3297
3298     eval ${pfx}_type=\$_type
3299     eval ${pfx}_ident=\$_ident
3300 }
3301
3302 set_ccvars(){
3303     eval ${1}_C=\${_cc_c-\${${1}_C}}
3304     eval ${1}_E=\${_cc_e-\${${1}_E}}
3305     eval ${1}_O=\${_cc_o-\${${1}_O}}
3306
3307     if [ -n "$_depflags" ]; then
3308         eval ${1}_DEPFLAGS=\$_depflags
3309     else
3310         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3311         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3312         eval DEP${1}FLAGS=\$_flags
3313     fi
3314 }
3315
3316 probe_cc cc "$cc"
3317 cflags_filter=$_flags_filter
3318 cflags_speed=$_cflags_speed
3319 cflags_size=$_cflags_size
3320 cflags_noopt=$_cflags_noopt
3321 add_cflags $_flags $_cflags
3322 cc_ldflags=$_ldflags
3323 set_ccvars CC
3324
3325 probe_cc hostcc "$host_cc"
3326 host_cflags_filter=$_flags_filter
3327 add_host_cflags  $_flags $_cflags
3328 set_ccvars HOSTCC
3329
3330 test -n "$cc_type" && enable $cc_type ||
3331     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3332
3333 : ${as_default:=$cc}
3334 : ${objcc_default:=$cc}
3335 : ${dep_cc_default:=$cc}
3336 : ${ld_default:=$cc}
3337 : ${host_ld_default:=$host_cc}
3338 set_default ar as objcc dep_cc ld host_ld
3339
3340 probe_cc as "$as"
3341 asflags_filter=$_flags_filter
3342 add_asflags $_flags $_cflags
3343 set_ccvars AS
3344
3345 probe_cc objcc "$objcc"
3346 objcflags_filter=$_flags_filter
3347 add_objcflags $_flags $_cflags
3348 set_ccvars OBJC
3349
3350 probe_cc ld "$ld"
3351 ldflags_filter=$_flags_filter
3352 add_ldflags $_flags $_ldflags
3353 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3354 LD_O=${_ld_o-$LD_O}
3355 LD_LIB=${_ld_lib-$LD_LIB}
3356 LD_PATH=${_ld_path-$LD_PATH}
3357
3358 probe_cc hostld "$host_ld"
3359 host_ldflags_filter=$_flags_filter
3360 add_host_ldflags $_flags $_ldflags
3361 HOSTLD_O=${_ld_o-$HOSTLD_O}
3362
3363 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3364     probe_cc depcc "$dep_cc"
3365     CCDEP=${_DEPCMD:-$DEPCMD}
3366     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3367     DEPCCFLAGS=$_flags
3368 fi
3369
3370 if $ar 2>&1 | grep -q Microsoft; then
3371     arflags="-nologo"
3372     ar_o='-out:$@'
3373 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3374     arflags="rq"
3375     ar_o='$@'
3376 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3377     arflags='-Xany -r -c'
3378     ar_o='$@'
3379 else
3380     arflags="rc"
3381     ar_o='$@'
3382 fi
3383
3384 add_cflags $extra_cflags
3385 add_objcflags $extra_objcflags
3386 add_asflags $extra_cflags
3387
3388 if test -n "$sysroot"; then
3389     case "$cc_type" in
3390         gcc|llvm_gcc|clang)
3391             add_cppflags --sysroot="$sysroot"
3392             add_ldflags --sysroot="$sysroot"
3393         ;;
3394         tms470)
3395             add_cppflags -I"$sysinclude"
3396             add_ldflags  --sysroot="$sysroot"
3397         ;;
3398     esac
3399 fi
3400
3401 if test "$cpu" = host; then
3402     enabled cross_compile &&
3403         die "--cpu=host makes no sense when cross-compiling."
3404
3405     case "$cc_type" in
3406         gcc|llvm_gcc)
3407             check_native(){
3408                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3409                 sed -n "/cc1.*$1=/{
3410                             s/.*$1=\\([^ ]*\\).*/\\1/
3411                             p
3412                             q
3413                         }" $TMPE
3414             }
3415             cpu=$(check_native -march || check_native -mcpu)
3416         ;;
3417     esac
3418
3419     test "${cpu:-host}" = host &&
3420         die "--cpu=host not supported with compiler $cc"
3421 fi
3422
3423 # Deal with common $arch aliases
3424 case "$arch" in
3425     aarch64|arm64)
3426         arch="aarch64"
3427     ;;
3428     arm*)
3429         arch="arm"
3430     ;;
3431     mips*|IP*)
3432         case "$arch" in
3433         *el)
3434             add_cppflags -EL
3435             add_ldflags -EL
3436         ;;
3437         *eb)
3438             add_cppflags -EB
3439             add_ldflags -EB
3440         ;;
3441         esac
3442         arch="mips"
3443     ;;
3444     parisc*|hppa*)
3445         arch="parisc"
3446     ;;
3447     "Power Macintosh"|ppc*|powerpc*)
3448         arch="ppc"
3449     ;;
3450     s390|s390x)
3451         arch="s390"
3452     ;;
3453     sh4|sh)
3454         arch="sh4"
3455     ;;
3456     sun4u|sparc*)
3457         arch="sparc"
3458     ;;
3459     tilegx|tile-gx)
3460         arch="tilegx"
3461     ;;
3462     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3463         arch="x86"
3464     ;;
3465 esac
3466
3467 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3468 enable $arch
3469
3470 # Add processor-specific flags
3471 if enabled aarch64; then
3472
3473     case $cpu in
3474         armv*)
3475             cpuflags="-march=$cpu"
3476         ;;
3477         *)
3478             cpuflags="-mcpu=$cpu"
3479         ;;
3480     esac
3481
3482 elif enabled alpha; then
3483
3484     cpuflags="-mcpu=$cpu"
3485
3486 elif enabled arm; then
3487
3488     check_arm_arch() {
3489         check_cpp_condition stddef.h \
3490             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3491             $cpuflags
3492     }
3493
3494     probe_arm_arch() {
3495         if   check_arm_arch 4;        then echo armv4
3496         elif check_arm_arch 4T;       then echo armv4t
3497         elif check_arm_arch 5;        then echo armv5
3498         elif check_arm_arch 5E;       then echo armv5e
3499         elif check_arm_arch 5T;       then echo armv5t
3500         elif check_arm_arch 5TE;      then echo armv5te
3501         elif check_arm_arch 5TEJ;     then echo armv5te
3502         elif check_arm_arch 6;        then echo armv6
3503         elif check_arm_arch 6J;       then echo armv6j
3504         elif check_arm_arch 6K;       then echo armv6k
3505         elif check_arm_arch 6Z;       then echo armv6z
3506         elif check_arm_arch 6ZK;      then echo armv6zk
3507         elif check_arm_arch 6T2;      then echo armv6t2
3508         elif check_arm_arch 7;        then echo armv7
3509         elif check_arm_arch 7A  7_A;  then echo armv7-a
3510         elif check_arm_arch 7S;       then echo armv7-a
3511         elif check_arm_arch 7R  7_R;  then echo armv7-r
3512         elif check_arm_arch 7M  7_M;  then echo armv7-m
3513         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3514         elif check_arm_arch 8A  8_A;  then echo armv8-a
3515         fi
3516     }
3517
3518     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3519
3520     case $cpu in
3521         armv*)
3522             cpuflags="-march=$cpu"
3523             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3524         ;;
3525         *)
3526             cpuflags="-mcpu=$cpu"
3527             case $cpu in
3528                 cortex-a*)                               subarch=armv7a  ;;
3529                 cortex-r*)                               subarch=armv7r  ;;
3530                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3531                 arm11*)                                  subarch=armv6   ;;
3532                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3533                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3534                 *)                             subarch=$(probe_arm_arch) ;;
3535             esac
3536         ;;
3537     esac
3538
3539     case "$subarch" in
3540         armv5t*)    enable fast_clz                ;;
3541         armv[6-8]*) enable fast_clz fast_unaligned ;;
3542     esac
3543
3544 elif enabled avr32; then
3545
3546     case $cpu in
3547         ap7[02]0[0-2])
3548             subarch="avr32_ap"
3549             cpuflags="-mpart=$cpu"
3550         ;;
3551         ap)
3552             subarch="avr32_ap"
3553             cpuflags="-march=$cpu"
3554         ;;
3555         uc3[ab]*)
3556             subarch="avr32_uc"
3557             cpuflags="-mcpu=$cpu"
3558         ;;
3559         uc)
3560             subarch="avr32_uc"
3561             cpuflags="-march=$cpu"
3562         ;;
3563     esac
3564
3565 elif enabled bfin; then
3566
3567     cpuflags="-mcpu=$cpu"
3568
3569 elif enabled mips; then
3570
3571     cpuflags="-march=$cpu"
3572
3573 elif enabled ppc; then
3574
3575     disable ldbrx
3576
3577     case $(tolower $cpu) in
3578         601|ppc601|powerpc601)
3579             cpuflags="-mcpu=601"
3580             disable altivec
3581         ;;
3582         603*|ppc603*|powerpc603*)
3583             cpuflags="-mcpu=603"
3584             disable altivec
3585         ;;
3586         604*|ppc604*|powerpc604*)
3587             cpuflags="-mcpu=604"
3588             disable altivec
3589         ;;
3590         g3|75*|ppc75*|powerpc75*)
3591             cpuflags="-mcpu=750"
3592             disable altivec
3593         ;;
3594         g4|745*|ppc745*|powerpc745*)
3595             cpuflags="-mcpu=7450"
3596             disable vsx
3597         ;;
3598         74*|ppc74*|powerpc74*)
3599             cpuflags="-mcpu=7400"
3600             disable vsx
3601         ;;
3602         g5|970|ppc970|powerpc970)
3603             cpuflags="-mcpu=970"
3604             disable vsx
3605         ;;
3606         power[3-6]*)
3607             cpuflags="-mcpu=$cpu"
3608             disable vsx
3609         ;;
3610         power[7-8]*)
3611             cpuflags="-mcpu=$cpu"
3612             enable ldbrx
3613         ;;
3614         cell)
3615             cpuflags="-mcpu=cell"
3616             enable ldbrx
3617             disable vsx
3618         ;;
3619         e500mc)
3620             cpuflags="-mcpu=e500mc"
3621             disable altivec
3622         ;;
3623         e500v2)
3624             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3625             disable altivec
3626             disable dcbzl
3627         ;;
3628         e500)
3629             cpuflags="-mcpu=8540 -mhard-float"
3630             disable altivec
3631             disable dcbzl
3632         ;;
3633     esac
3634
3635 elif enabled sparc; then
3636
3637     case $cpu in
3638         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3639             cpuflags="-mcpu=$cpu"
3640         ;;
3641         ultrasparc*|niagara[234])
3642             cpuflags="-mcpu=$cpu"
3643         ;;
3644     esac
3645
3646 elif enabled x86; then
3647
3648     case $cpu in
3649         i[345]86|pentium)
3650             cpuflags="-march=$cpu"
3651             disable i686
3652             disable mmx
3653         ;;
3654         # targets that do NOT support nopl and conditional mov (cmov)
3655         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3656             cpuflags="-march=$cpu"
3657             disable i686
3658         ;;
3659         # targets that do support nopl and conditional mov (cmov)
3660         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3661             cpuflags="-march=$cpu"
3662             enable i686
3663             enable fast_cmov
3664         ;;
3665         # targets that do support conditional mov but on which it's slow
3666         pentium4|pentium4m|prescott|nocona)
3667             cpuflags="-march=$cpu"
3668             enable i686
3669             disable fast_cmov
3670         ;;
3671     esac
3672
3673 fi
3674
3675 if [ "$cpu" != generic ]; then
3676     add_cflags  $cpuflags
3677     add_asflags $cpuflags
3678     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3679 fi
3680
3681 # compiler sanity check
3682 check_exec <<EOF
3683 int main(void){ return 0; }
3684 EOF
3685 if test "$?" != 0; then
3686     echo "$cc is unable to create an executable file."
3687     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3688         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3689         echo "Only do this if you know what cross compiling means."
3690     fi
3691     die "C compiler test failed."
3692 fi
3693
3694 add_cppflags -D_ISOC99_SOURCE
3695 check_cflags -std=c99
3696 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3697 #include <stdlib.h>
3698 EOF
3699 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3700 #include <stdlib.h>
3701 EOF
3702
3703 add_host_cppflags -D_ISOC99_SOURCE
3704 check_host_cflags -std=c99
3705 check_host_cflags -Wall
3706 check_host_cflags -O3
3707
3708 check_64bit(){
3709     arch32=$1
3710     arch64=$2
3711     expr=$3
3712     check_code cc "" "int test[2*($expr) - 1]" &&
3713         subarch=$arch64 || subarch=$arch32
3714 }
3715
3716 case "$arch" in
3717     aarch64|alpha|ia64)
3718         spic=$shared
3719     ;;
3720     mips)
3721         check_64bit mips mips64 '_MIPS_SIM > 1'
3722         spic=$shared
3723     ;;
3724     parisc)
3725         check_64bit parisc parisc64 'sizeof(void *) > 4'
3726         spic=$shared
3727     ;;
3728     ppc)
3729         check_64bit ppc ppc64 'sizeof(void *) > 4'
3730         spic=$shared
3731     ;;
3732     s390)
3733         check_64bit s390 s390x 'sizeof(void *) > 4'
3734         spic=$shared
3735     ;;
3736     sparc)
3737         check_64bit sparc sparc64 'sizeof(void *) > 4'
3738         spic=$shared
3739     ;;
3740     x86)
3741         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3742         if test "$subarch" = "x86_64"; then
3743             spic=$shared
3744         fi
3745     ;;
3746 esac
3747
3748 enable $subarch
3749 enabled spic && enable_weak pic
3750
3751 # OS specific
3752 case $target_os in
3753     aix)
3754         SHFLAGS=-shared
3755         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3756         enabled shared && add_ldflags -Wl,-brtl
3757         ;;
3758     android)
3759         disable symver
3760         enable section_data_rel_ro
3761         SLIB_INSTALL_NAME='$(SLIBNAME)'
3762         SLIB_INSTALL_LINKS=
3763         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3764         ;;
3765     haiku)
3766         prefix_default="/boot/common"
3767         network_extralibs="-lnetwork"
3768         host_libs=
3769         ;;
3770     sunos)
3771         SHFLAGS='-shared -Wl,-h,$$(@F)'
3772         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3773         network_extralibs="-lsocket -lnsl"
3774         # When using suncc to build, the Solaris linker will mark
3775         # an executable with each instruction set encountered by
3776         # the Solaris assembler.  As our libraries contain their own
3777         # guards for processor-specific code, instead suppress
3778         # generation of the HWCAPS ELF section on Solaris x86 only.
3779         enabled_all suncc x86 &&
3780             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3781             add_ldflags -Wl,-M,mapfile
3782         nm_default='nm -P -g'
3783         version_script='-M'
3784         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3785         ;;
3786     netbsd)
3787         disable symver
3788         oss_indev_extralibs="-lossaudio"
3789         oss_outdev_extralibs="-lossaudio"
3790         ;;
3791     openbsd|bitrig)
3792         disable symver
3793         SHFLAGS='-shared'
3794         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3795         SLIB_INSTALL_LINKS=
3796         oss_indev_extralibs="-lossaudio"
3797         oss_outdev_extralibs="-lossaudio"
3798         ;;
3799     dragonfly)
3800         disable symver
3801         ;;
3802     freebsd)
3803         ;;
3804     bsd/os)
3805         add_extralibs -lpoll -lgnugetopt
3806         ;;
3807     darwin)
3808         enabled ppc && add_asflags -force_cpusubtype_ALL
3809         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3810         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3811         add_ldflags -Wl,-dynamic,-search_paths_first
3812         SLIBSUF=".dylib"
3813         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3814         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3815         objformat="macho"
3816         enabled x86_64 && objformat="macho64"
3817         enabled_any pic shared ||
3818             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3819         check_header dispatch/dispatch.h &&
3820             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3821         ;;
3822     msys*)
3823         die "Native MSYS builds are discouraged, please use the MINGW environment."
3824         ;;
3825     mingw32*|mingw64*)
3826         if test $target_os = "mingw32ce"; then
3827             disable network
3828         else
3829             target_os=mingw32
3830         fi
3831         LIBTARGET=i386
3832         if enabled x86_64; then
3833             LIBTARGET="i386:x86-64"
3834         elif enabled arm; then
3835             LIBTARGET=arm-wince
3836         fi
3837         check_ldflags -Wl,--nxcompat
3838         check_ldflags -Wl,--dynamicbase
3839         shlibdir_default="$bindir_default"
3840         SLIBPREF=""
3841         SLIBSUF=".dll"
3842         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3843         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3844         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3845         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3846         SLIB_INSTALL_LINKS=
3847         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3848         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3849         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3850         objformat="win32"
3851         dlltool="${cross_prefix}dlltool"
3852         ranlib=:
3853         enable dos_paths
3854         ;;
3855     win32|win64)
3856         disable symver
3857         if enabled shared; then
3858             # Link to the import library instead of the normal static library
3859             # for shared libs.
3860             LD_LIB='%.lib'
3861             # Cannot build both shared and static libs with MSVC or icl.
3862             disable static
3863         fi
3864         shlibdir_default="$bindir_default"
3865         SLIBPREF=""
3866         SLIBSUF=".dll"
3867         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3868         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3869         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3870         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3871         SLIB_INSTALL_LINKS=
3872         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3873         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3874         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3875         objformat="win32"
3876         ranlib=:
3877         enable dos_paths
3878         ;;
3879     cygwin*)
3880         target_os=cygwin
3881         shlibdir_default="$bindir_default"
3882         SLIBPREF="cyg"
3883         SLIBSUF=".dll"
3884         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3885         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3886         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3887         SLIB_INSTALL_LINKS=
3888         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3889         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3890         objformat="win32"
3891         enable dos_paths
3892         ;;
3893     *-dos|freedos|opendos)
3894         network_extralibs="-lsocket"
3895         objformat="coff"
3896         enable dos_paths
3897         add_cppflags -U__STRICT_ANSI__
3898         ;;
3899     linux)
3900         enable dv1394
3901         enable section_data_rel_ro
3902         ;;
3903     irix*)
3904         target_os=irix
3905         ranlib="echo ignoring ranlib"
3906         ;;
3907     os/2*)
3908         ln_s="cp -f"
3909         objformat="aout"
3910         add_cppflags -D_GNU_SOURCE
3911         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3912         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3913         LIBSUF="_s.a"
3914         SLIBPREF=""
3915         SLIBSUF=".dll"
3916         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3917         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3918         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3919             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3920             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3921             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3922             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3923         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3924             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3925         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3926         enable dos_paths
3927         ;;
3928     gnu/kfreebsd)
3929         add_cppflags -D_BSD_SOURCE
3930         ;;
3931     gnu)
3932         ;;
3933     qnx)
3934         add_cppflags -D_QNX_SOURCE
3935         network_extralibs="-lsocket"
3936         ;;
3937     symbian)
3938         SLIBSUF=".dll"
3939         enable dos_paths
3940         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3941         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3942         add_ldflags -Wl,--target1-abs,--no-undefined \
3943                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3944                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3945         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3946                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3947                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3948         ;;
3949     osf1)
3950         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3951         ;;
3952     minix)
3953         ;;
3954     plan9)
3955         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3956                      -D_REENTRANT_SOURCE        \
3957                      -D_RESEARCH_SOURCE         \
3958                      -DFD_SETSIZE=96            \
3959                      -DHAVE_SOCK_OPTS
3960         add_compat strtod.o strtod=avpriv_strtod
3961         network_extralibs='-lbsd'
3962         exeobjs=compat/plan9/main.o
3963         cp_f='cp'
3964         ;;
3965     none)
3966         ;;
3967     *)
3968         die "Unknown OS '$target_os'."
3969         ;;
3970 esac
3971
3972 # determine libc flavour
3973
3974 probe_libc(){
3975     pfx=$1
3976     pfx_no_=${pfx%_}
3977     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3978     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3979         eval ${pfx}libc_type=uclibc
3980         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3981     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3982         eval ${pfx}libc_type=glibc
3983         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3984     # MinGW headers can be installed on Cygwin, so check for newlib first.
3985     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3986         eval ${pfx}libc_type=newlib
3987         add_${pfx}cppflags -U__STRICT_ANSI__
3988     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3989     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3990         eval ${pfx}libc_type=mingw64
3991         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3992         eval test \$${pfx_no_}cc_type = "gcc" &&
3993             add_${pfx}cppflags -D__printf__=__gnu_printf__
3994     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3995          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3996         eval ${pfx}libc_type=mingw32
3997         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3998             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3999             die "ERROR: MinGW32 runtime version must be >= 3.15."
4000         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4001         eval test \$${pfx_no_}cc_type = "gcc" &&
4002             add_${pfx}cppflags -D__printf__=__gnu_printf__
4003     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4004         eval ${pfx}libc_type=msvcrt
4005         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4006             if [ "$pfx" = host_ ]; then
4007                 add_host_cppflags -Dsnprintf=_snprintf
4008             else
4009                 add_compat strtod.o strtod=avpriv_strtod
4010                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4011                                              _snprintf=avpriv_snprintf  \
4012                                              vsnprintf=avpriv_vsnprintf
4013             fi
4014         fi
4015         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4016         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4017         # 0x601 by default unless something else is set by the user.
4018         # This can easily lead to us detecting functions only present
4019         # in such new versions and producing binaries requiring windows 7.0.
4020         # Therefore explicitly set the default to XP unless the user has
4021         # set something else on the command line.
4022         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4023         # family. For these cases, configure is free to use any functions
4024         # found in the SDK headers by default. (Alternatively, we could force
4025         # _WIN32_WINNT to 0x0602 in that case.)
4026         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4027             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4028 #ifdef WINAPI_FAMILY
4029 #include <winapifamily.h>
4030 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4031 #error not desktop
4032 #endif
4033 #endif
4034 EOF
4035         if [ "$pfx" = "" ]; then
4036             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4037         fi
4038     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4039         eval ${pfx}libc_type=klibc
4040     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4041         eval ${pfx}libc_type=bionic
4042     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4043         eval ${pfx}libc_type=solaris
4044         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4045     else
4046         eval ${pfx}libc_type=default
4047         add_${pfx}cppflags -D_DEFAULT_SOURCE
4048     fi
4049 }
4050
4051 probe_libc
4052 test -n "$libc_type" && enable libc_$libc_type
4053 probe_libc host_
4054 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4055
4056 case $libc_type in
4057     bionic)
4058         add_compat strtod.o strtod=avpriv_strtod
4059         ;;
4060 esac
4061
4062 # hacks for compiler/libc/os combinations
4063
4064 if enabled_all tms470 libc_glibc; then