libavfilter/vf_vpp: Add common filters of the qsv vpp
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-cuvid   Nvidia CUVID video decode acceleration
241   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
243   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
244   --enable-libnpp  Nvidia CUDA processing
245   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246   --enable-nvenc   Nvidia video encoding
247   --enable-omx     OpenMAX IL
248   --enable-omx-rpi OpenMAX IL for Raspberry Pi
249   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
250   --enable-vda     Apple Video Decode Acceleration [auto]
251   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254   --arch=ARCH              select architecture [$arch]
255   --cpu=CPU                select the minimum required CPU (affects
256                            instruction selection, may crash on older CPUs)
257   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
258   --enable-cross-compile   assume a cross-compiler is used
259   --sysroot=PATH           root of cross-build tree
260   --sysinclude=PATH        location of cross-build system headers
261   --target-os=OS           compiler targets OS [$target_os]
262   --target-exec=CMD        command to run executables on target
263   --target-path=DIR        path to view of build directory on target
264   --target-samples=DIR     path to samples directory on target
265   --toolchain=NAME         set tool defaults according to NAME
266   --nm=NM                  use nm tool
267   --ar=AR                  use archive tool AR [$ar_default]
268   --as=AS                  use assembler AS [$as_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --objcc=OCC              use ObjC compiler OCC [$cc_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD
273   --x86asmexe=X86ASM       use x86 assembler X86ASM
274   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
275   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276   --host-cc=HOSTCC         use host C compiler HOSTCC
277   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
278   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279   --host-ld=HOSTLD         use host linker HOSTLD
280   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
281   --host-libs=HLIBS        use libs HLIBS when linking for host
282   --host-os=OS             compiler host OS [$target_os]
283   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
284   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
285   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
289   --extra-version=STRING   version string suffix []
290   --optflags=OPTFLAGS      override optimization-related compiler flags
291   --enable-pic             build position-independent code
292   --enable-thumb           compile for Thumb instruction set
293   --enable-lto             use link-time optimization
294   --env="ENV=override"     override the environment variables
295
296 Advanced options (experts only):
297   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
298   --custom-allocator=NAME  use a supported custom allocator
299   --disable-symver         disable symbol versioning
300   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301   --disable-safe-bitstream-reader
302                            disable buffer boundary checking in bitreaders
303                            (faster, but may crash)
304   --enable-sram            allow use of on-chip SRAM
305
306 Optimization options (experts only):
307   --disable-asm            disable all assembly optimizations
308   --disable-altivec        disable AltiVec optimizations
309   --disable-vsx            disable VSX optimizations
310   --disable-power8         disable POWER8 optimizations
311   --disable-amd3dnow       disable 3DNow! optimizations
312   --disable-amd3dnowext    disable 3DNow! extended optimizations
313   --disable-mmx            disable MMX optimizations
314   --disable-mmxext         disable MMXEXT optimizations
315   --disable-sse            disable SSE optimizations
316   --disable-sse2           disable SSE2 optimizations
317   --disable-sse3           disable SSE3 optimizations
318   --disable-ssse3          disable SSSE3 optimizations
319   --disable-sse4           disable SSE4 optimizations
320   --disable-sse42          disable SSE4.2 optimizations
321   --disable-avx            disable AVX optimizations
322   --disable-xop            disable XOP optimizations
323   --disable-fma3           disable FMA3 optimizations
324   --disable-fma4           disable FMA4 optimizations
325   --disable-avx2           disable AVX2 optimizations
326   --disable-armv5te        disable armv5te optimizations
327   --disable-armv6          disable armv6 optimizations
328   --disable-armv6t2        disable armv6t2 optimizations
329   --disable-vfp            disable VFP optimizations
330   --disable-neon           disable NEON optimizations
331   --disable-inline-asm     disable use of inline assembly
332   --disable-x86asm         disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335   --disable-debug          disable debugging symbols
336   --enable-debug=LEVEL     set the debug level [$debuglevel]
337   --disable-optimizations  disable compiler optimizations
338   --enable-extra-warnings  enable more compiler warnings
339   --samples=PATH           location of test samples for FATE, if not set use
340                            \$LIBAV_SAMPLES at make invocation time.
341   --enable-neon-clobber-test check NEON registers for clobbering (should be
342                            used only for debugging purposes)
343   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344                            should be used only for debugging purposes)
345   --enable-random          randomly enable/disable components
346   --disable-random
347   --enable-random=LIST     randomly enable/disable specific components or
348   --disable-random=LIST    component groups. LIST is a comma-separated list
349                            of NAME[:PROB] entries where NAME is a component
350                            (group) and PROB the probability associated with
351                            NAME (default 0.5).
352   --random-seed=VALUE      seed value for --enable/disable-random
353   --disable-valgrind-backtrace do not print a backtrace under Valgrind
354                            (only applies to --disable-optimizations builds)
355   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
356                            in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     i=1
372     while read line; do
373         printf '%5s   %s\n' "${i}" "${line}"
374         i=$(($i+1))
375     done < $1 >> $logfile
376     log END $1
377 }
378
379 echolog(){
380     log "$@"
381     echo "$@"
382 }
383
384 warn(){
385     log "WARNING: $*"
386     WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390     echolog "$@"
391     cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git.  If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397     if disabled logging; then
398         cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402     else
403         cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407     fi
408     exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421     echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425     v=$(echo "$1" | sed "s/'/'\\\\''/g")
426     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427     echo "$v"
428 }
429
430 cleanws(){
431     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
432 }
433
434 filter(){
435     pat=$1
436     shift
437     for v; do
438         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439     done
440 }
441
442 filter_out(){
443     pat=$1
444     shift
445     for v; do
446         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447     done
448 }
449
450 map(){
451     m=$1
452     shift
453     for v; do eval $m; done
454 }
455
456 add_suffix(){
457     suffix=$1
458     shift
459     for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463     value=$1
464     shift
465     for var in $*; do
466         eval $var=$value
467     done
468 }
469
470 set_weak(){
471     value=$1
472     shift
473     for var; do
474         eval : \${$var:=$value}
475     done
476 }
477
478 sanitize_var_name(){
479     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483     var=$1
484     shift
485     eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489     eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493     for pvar in $*; do
494         eval level=\${${pvar}_level:=0}
495         eval ${pvar}_${level}="\$$pvar"
496         eval ${pvar}_level=$(($level+1))
497     done
498 }
499
500 popvar(){
501     for pvar in $*; do
502         eval level=\${${pvar}_level:-0}
503         test $level = 0 && continue
504         eval level=$(($level-1))
505         eval $pvar="\${${pvar}_${level}}"
506         eval ${pvar}_level=$level
507         eval unset ${pvar}_${level}
508     done
509 }
510
511 enable(){
512     set_all yes $*
513 }
514
515 disable(){
516     set_all no $*
517 }
518
519 enable_weak(){
520     set_weak yes $*
521 }
522
523 disable_weak(){
524     set_weak no $*
525 }
526
527 enable_sanitized(){
528     for var; do
529         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530     done
531 }
532
533 disable_sanitized(){
534     for var; do
535         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536     done
537 }
538
539 do_enable_deep(){
540     for var; do
541         enabled $var && continue
542         eval sel="\$${var}_select"
543         eval sgs="\$${var}_suggest"
544         pushvar var sgs
545         enable_deep $sel
546         popvar sgs
547         enable_deep_weak $sgs
548         popvar var
549     done
550 }
551
552 enable_deep(){
553     do_enable_deep $*
554     enable $*
555 }
556
557 enable_deep_weak(){
558     for var; do
559         disabled $var && continue
560         pushvar var
561         do_enable_deep $var
562         popvar var
563         enable_weak $var
564     done
565 }
566
567 enabled(){
568     test "${1#!}" = "$1" && op== || op=!=
569     eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573     test "${1#!}" = "$1" && op== || op=!=
574     eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578     for opt; do
579         enabled $opt || return 1
580     done
581 }
582
583 disabled_all(){
584     for opt; do
585         disabled $opt || return 1
586     done
587 }
588
589 enabled_any(){
590     for opt; do
591         enabled $opt && return 0
592     done
593 }
594
595 disabled_any(){
596     for opt; do
597         disabled $opt && return 0
598     done
599     return 1
600 }
601
602 set_default(){
603     for opt; do
604         eval : \${$opt:=\$${opt}_default}
605     done
606 }
607
608 is_in(){
609     value=$1
610     shift
611     for var in $*; do
612         [ $var = $value ] && return 0
613     done
614     return 1
615 }
616
617 check_deps(){
618     for cfg; do
619         enabled ${cfg}_checking && die "Circular dependency for $cfg."
620         disabled ${cfg}_checking && continue
621         enable ${cfg}_checking
622
623         eval dep_all="\$${cfg}_deps"
624         eval dep_any="\$${cfg}_deps_any"
625         eval dep_con="\$${cfg}_conflict"
626         eval dep_sel="\$${cfg}_select"
627         eval dep_sgs="\$${cfg}_suggest"
628         eval dep_ifa="\$${cfg}_if"
629         eval dep_ifn="\$${cfg}_if_any"
630
631         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637         enabled_all  $dep_all || disable $cfg
638         enabled_any  $dep_any || disable $cfg
639         disabled_all $dep_con || disable $cfg
640         disabled_any $dep_sel && disable $cfg
641
642         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645             # filter out library deps, these do not belong in extralibs
646             is_in $dep $LIBRARY_LIST && continue
647             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648         done
649
650         disable ${cfg}_checking
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 resolve(){
709     var=$1
710     tmpvar=
711     for entry in $(eval echo \$$var); do
712         tmpvar="$tmpvar $(eval echo \$${entry})"
713     done
714     eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718     append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722     append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726     append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730     append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734     append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738     append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742     append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746     append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750     append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754     prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758     append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762     append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766     append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770     append compat_objs $1
771     shift
772     map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776     log "$@"
777     "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781     eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785     eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789     log check_cc "$@"
790     cat > $TMPC
791     log_file $TMPC
792     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796     log check_objcc "$@"
797     cat > $TMPC
798     log_file $TMPC
799     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803     log check_cpp "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810     eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814     log check_as "$@"
815     cat > $TMPS
816     log_file $TMPS
817     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821     log check_inline_asm "$@"
822     name="$1"
823     code="$2"
824     shift 2
825     disable $name
826     check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832     log check_insn "$@"
833     check_inline_asm ${1}_inline "\"$2\""
834     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838     log check_x86asm "$@"
839     echo "$1" > $TMPS
840     log_file $TMPS
841     shift 1
842     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846     eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850     log check_ld "$@"
851     flags=$(filter_out '-l*' "$@")
852     libs=$(filter '-l*' "$@")
853     check_cc $($cflags_filter $flags) || return
854     flags=$($ldflags_filter $flags)
855     libs=$($ldflags_filter $libs)
856     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860     hdr=$1
861     test "${hdr%.h}" = "${hdr}" &&
862         echo "#include $hdr"    ||
863         echo "#include <$hdr>"
864 }
865
866 check_code(){
867     log check_code "$@"
868     check=$1
869     headers=$2
870     code=$3
871     shift 3
872     {
873         for hdr in $headers; do
874             print_include $hdr
875         done
876         echo "int main(void) { $code; return 0; }"
877     } | check_$check "$@"
878 }
879
880 check_cppflags(){
881     log check_cppflags "$@"
882     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888     log test_cflags "$@"
889     set -- $($cflags_filter "$@")
890     check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896     log check_cflags "$@"
897     test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901     log test_objcflags "$@"
902     set -- $($objcflags_filter "$@")
903     check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909     log check_objcflags "$@"
910     test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914     log test_ldflags "$@"
915     check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921     log check_ldflags "$@"
922     test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926     log test_stripflags "$@"
927     # call check_cc to get a fresh TMPO
928     check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931     check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935     log check_stripflags "$@"
936     test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940     log check_header "$@"
941     header=$1
942     shift
943     disable_sanitized $header
944     check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951     log check_func "$@"
952     func=$1
953     shift
954     disable $func
955     check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962     log check_mathfunc "$@"
963     func=$1
964     narg=$2
965     shift 2
966     test $narg = 2 && args="f, g" || args="f"
967     disable $func
968     check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976     log check_func_headers "$@"
977     headers=$1
978     funcs=$2
979     shift 2
980     {
981         for hdr in $headers; do
982             print_include $hdr
983         done
984         for func in $funcs; do
985             echo "long check_$func(void) { return (long) $func; }"
986         done
987         echo "int main(void) { return 0; }"
988     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992     log check_cpp_condition "$@"
993     header=$1
994     condition=$2
995     shift 2
996     check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005     log test_cflags_cpp "$@"
1006     flags=$1
1007     condition=$2
1008     shift 2
1009     set -- $($cflags_filter "$flags")
1010     check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018     log check_lib "$@"
1019     name="$1"
1020     headers="$2"
1021     funcs="$3"
1022     shift 3
1023     disable $name
1024     check_func_headers "$headers" "$funcs" "$@" &&
1025         enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 check_pkg_config(){
1029     log check_pkg_config "$@"
1030     name="$1"
1031     pkg_version="$2"
1032     pkg="${2%% *}"
1033     headers="$3"
1034     funcs="$4"
1035     shift 4
1036     disable $name
1037     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041         enable $name &&
1042         add_cflags    "$pkg_cflags" &&
1043         eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1044 }
1045
1046 check_exec(){
1047     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 }
1049
1050 check_exec_crash(){
1051     log check_exec_crash "$@"
1052     code=$(cat)
1053
1054     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1055     # are safe but may not be available everywhere.  Thus we use
1056     # raise(SIGTERM) instead.  The check is run in a subshell so we
1057     # can redirect the "Terminated" message from the shell.  SIGBUS
1058     # is not defined by standard C so it is used conditionally.
1059
1060     (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063     raise(SIGTERM);
1064 }
1065 int foo(void){
1066     $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070     signal(SIGILL, sighandler);
1071     signal(SIGFPE, sighandler);
1072     signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074     signal(SIGBUS, sighandler);
1075 #endif
1076     return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082     log check_type "$@"
1083     headers=$1
1084     type=$2
1085     shift 2
1086     disable_sanitized "$type"
1087     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 }
1089
1090 check_struct(){
1091     log check_struct "$@"
1092     headers=$1
1093     struct=$2
1094     member=$3
1095     shift 3
1096     disable_sanitized "${struct}_${member}"
1097     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098         enable_sanitized "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102     log check_builtin "$@"
1103     name=$1
1104     headers=$2
1105     builtin=$3
1106     shift 3
1107     disable "$name"
1108     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1109 }
1110
1111 check_compile_assert(){
1112     log check_compile_assert "$@"
1113     name=$1
1114     headers=$2
1115     condition=$3
1116     shift 3
1117     disable "$name"
1118     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1119 }
1120
1121 require(){
1122     log require "$@"
1123     name_version="$1"
1124     name="${1%% *}"
1125     headers="$2"
1126     func="$3"
1127     shift 3
1128     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 }
1130
1131 require_header(){
1132     log require "$@"
1133     header="$1"
1134     shift
1135     check_header "$header" "$@" || die "ERROR: $header not found"
1136 }
1137
1138 require_cpp_condition(){
1139     log require "$@"
1140     header="$1"
1141     condition="$2"
1142     shift 2
1143     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1144 }
1145
1146 require_pkg_config(){
1147     log require_pkg_config "$@"
1148     pkg_version="$2"
1149     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 }
1151
1152 hostcc_e(){
1153     eval printf '%s\\n' $HOSTCC_E
1154 }
1155
1156 hostcc_o(){
1157     eval printf '%s\\n' $HOSTCC_O
1158 }
1159
1160 check_host_cc(){
1161     log check_host_cc "$@"
1162     cat > $TMPC
1163     log_file $TMPC
1164     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 }
1166
1167 check_host_cpp(){
1168     log check_host_cpp "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1172 }
1173
1174 check_host_cppflags(){
1175     log check_host_cppflags "$@"
1176     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1177 #include <stdlib.h>;
1178 EOF
1179 }
1180
1181 check_host_cflags(){
1182     log check_host_cflags "$@"
1183     set -- $($host_cflags_filter "$@")
1184     check_host_cc "$@" <<EOF && append host_cflags "$@"
1185 int x;
1186 EOF
1187 }
1188
1189 check_host_cpp_condition(){
1190     log check_host_cpp_condition "$@"
1191     header=$1
1192     condition=$2
1193     shift 2
1194     check_host_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 apply(){
1203     file=$1
1204     shift
1205     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1206 }
1207
1208 cp_if_changed(){
1209     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1210     mkdir -p "$(dirname $2)"
1211     cp -f "$1" "$2"
1212 }
1213
1214 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1215 # system-dependent things.
1216
1217 AVCODEC_COMPONENTS="
1218     bsfs
1219     decoders
1220     encoders
1221     hwaccels
1222     parsers
1223 "
1224
1225 AVDEVICE_COMPONENTS="
1226     indevs
1227     outdevs
1228 "
1229 AVFILTER_COMPONENTS="
1230     filters
1231 "
1232 AVFORMAT_COMPONENTS="
1233     demuxers
1234     muxers
1235     protocols
1236 "
1237
1238 AVRESAMPLE_COMPONENTS=""
1239 AVUTIL_COMPONENTS=""
1240
1241 COMPONENT_LIST="
1242     $AVCODEC_COMPONENTS
1243     $AVDEVICE_COMPONENTS
1244     $AVFILTER_COMPONENTS
1245     $AVFORMAT_COMPONENTS
1246     $AVRESAMPLE_COMPONENTS
1247     $AVUTIL_COMPONENTS
1248 "
1249
1250 EXAMPLE_LIST="
1251     decode_audio_example
1252     decode_video_example
1253     encode_audio_example
1254     encode_video_example
1255     filter_audio_example
1256     metadata_example
1257     output_example
1258     qsvdec_example
1259     transcode_aac_example
1260 "
1261
1262 # catchall list of things that require external libs to link
1263 EXTRALIBS_LIST="
1264     cpu_init
1265     cws2fws
1266 "
1267
1268 HWACCEL_LIBRARY_NONFREE_LIST="
1269     cuda
1270     cuvid
1271     libnpp
1272 "
1273 HWACCEL_LIBRARY_LIST="
1274     $HWACCEL_LIBRARY_NONFREE_LIST
1275     d3d11va
1276     dxva2
1277     libmfx
1278     mmal
1279     nvenc
1280     omx
1281     vaapi
1282     vda
1283     vdpau
1284 "
1285
1286 EXTERNAL_LIBRARY_GPL_LIST="
1287     libcdio
1288     libx264
1289     libx265
1290     libxavs
1291     libxvid
1292 "
1293
1294 EXTERNAL_LIBRARY_NONFREE_LIST="
1295     libfaac
1296     libfdk_aac
1297     openssl
1298 "
1299
1300 EXTERNAL_LIBRARY_VERSION3_LIST="
1301     libopencore_amrnb
1302     libopencore_amrwb
1303     libvo_aacenc
1304     libvo_amrwbenc
1305 "
1306
1307 EXTERNAL_LIBRARY_LIST="
1308     $EXTERNAL_LIBRARY_GPL_LIST
1309     $EXTERNAL_LIBRARY_NONFREE_LIST
1310     $EXTERNAL_LIBRARY_VERSION3_LIST
1311     avisynth
1312     avxsynth
1313     frei0r
1314     gnutls
1315     libbs2b
1316     libdc1394
1317     libdcadec
1318     libfontconfig
1319     libfreetype
1320     libgsm
1321     libhdcd
1322     libilbc
1323     libjack
1324     libkvazaar
1325     libmp3lame
1326     libopencv
1327     libopenh264
1328     libopenjpeg
1329     libopus
1330     libpulse
1331     librtmp
1332     libschroedinger
1333     libsnappy
1334     libspeex
1335     libtheora
1336     libtwolame
1337     libvorbis
1338     libvpx
1339     libwavpack
1340     libwebp
1341     libxcb
1342     libxcb_shm
1343     libxcb_xfixes
1344 "
1345
1346 SYSTEM_LIBRARY_LIST="
1347     bzlib
1348     zlib
1349 "
1350
1351 FEATURE_LIST="
1352     gray
1353     hardcoded_tables
1354     omx_rpi
1355     runtime_cpudetect
1356     safe_bitstream_reader
1357     shared
1358     small
1359     sram
1360     static
1361     swscale_alpha
1362 "
1363
1364 LIBRARY_LIST="
1365     avcodec
1366     avdevice
1367     avfilter
1368     avformat
1369     avresample
1370     avutil
1371     swscale
1372 "
1373
1374 LICENSE_LIST="
1375     gpl
1376     nonfree
1377     version3
1378 "
1379
1380 PROGRAM_LIST="
1381     avconv
1382     avplay
1383     avprobe
1384 "
1385
1386 SUBSYSTEM_LIST="
1387     dct
1388     doc
1389     error_resilience
1390     faan
1391     fft
1392     lsp
1393     lzo
1394     mdct
1395     network
1396     rdft
1397 "
1398
1399 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1400 CONFIG_LIST="
1401     $EXAMPLE_LIST
1402     $EXTERNAL_LIBRARY_LIST
1403     $HWACCEL_LIBRARY_LIST
1404     $FEATURE_LIST
1405     $LICENSE_LIST
1406     $LIBRARY_LIST
1407     $PROGRAM_LIST
1408     $SUBSYSTEM_LIST
1409     $SYSTEM_LIBRARY_LIST
1410     neon_clobber_test
1411     pic
1412     pod2man
1413     texi2html
1414     thumb
1415     valgrind_backtrace
1416     xmm_clobber_test
1417     $COMPONENT_LIST
1418 "
1419
1420 THREADS_LIST="
1421     pthreads
1422     w32threads
1423 "
1424
1425 ATOMICS_LIST="
1426     atomics_gcc
1427     atomics_suncc
1428     atomics_win32
1429 "
1430
1431 ARCH_LIST="
1432     aarch64
1433     alpha
1434     arm
1435     avr32
1436     avr32_ap
1437     avr32_uc
1438     bfin
1439     ia64
1440     m68k
1441     mips
1442     mips64
1443     parisc
1444     ppc
1445     ppc64
1446     s390
1447     sh4
1448     sparc
1449     sparc64
1450     tilegx
1451     tilepro
1452     tomi
1453     x86
1454     x86_32
1455     x86_64
1456 "
1457
1458 ARCH_EXT_LIST_ARM="
1459     armv5te
1460     armv6
1461     armv6t2
1462     armv8
1463     neon
1464     vfp
1465     vfpv3
1466 "
1467
1468 ARCH_EXT_LIST_X86_SIMD="
1469     amd3dnow
1470     amd3dnowext
1471     avx
1472     avx2
1473     fma3
1474     fma4
1475     mmx
1476     mmxext
1477     sse
1478     sse2
1479     sse3
1480     sse4
1481     sse42
1482     ssse3
1483     xop
1484 "
1485
1486 ARCH_EXT_LIST_PPC="
1487     altivec
1488     dcbzl
1489     ldbrx
1490     power8
1491     ppc4xx
1492     vsx
1493 "
1494
1495 ARCH_EXT_LIST_X86="
1496     $ARCH_EXT_LIST_X86_SIMD
1497     cpunop
1498     i686
1499 "
1500
1501 ARCH_EXT_LIST_MIPS="
1502     loongson
1503     mips32r1
1504     mips64r1
1505     mips32r2
1506     mips64r2
1507     mips32r6
1508     mips64r6
1509 "
1510
1511 ARCH_EXT_LIST="
1512     $ARCH_EXT_LIST_ARM
1513     $ARCH_EXT_LIST_MIPS
1514     $ARCH_EXT_LIST_PPC
1515     $ARCH_EXT_LIST_X86
1516     vis
1517 "
1518
1519 ARCH_FEATURES="
1520     aligned_stack
1521     fast_64bit
1522     fast_clz
1523     fast_cmov
1524     local_aligned_8
1525     local_aligned_16
1526     local_aligned_32
1527     simd_align_16
1528     simd_align_32
1529 "
1530
1531 BUILTIN_LIST="
1532     atomic_cas_ptr
1533     machine_rw_barrier
1534     MemoryBarrier
1535     mm_empty
1536     rdtsc
1537     sem_timedwait
1538     sync_val_compare_and_swap
1539 "
1540 HAVE_LIST_CMDLINE="
1541     inline_asm
1542     symver
1543     x86asm
1544 "
1545
1546 HAVE_LIST_PUB="
1547     bigendian
1548     fast_unaligned
1549 "
1550
1551 HEADERS_LIST="
1552     AVFoundation_AVFoundation_h
1553     alsa_asoundlib_h
1554     arpa_inet_h
1555     cdio_paranoia_h
1556     cdio_paranoia_paranoia_h
1557     d3d11_h
1558     dispatch_dispatch_h
1559     dev_bktr_ioctl_bt848_h
1560     dev_bktr_ioctl_meteor_h
1561     dev_ic_bt8xx_h
1562     dev_video_bktr_ioctl_bt848_h
1563     dev_video_meteor_ioctl_meteor_h
1564     direct_h
1565     dlfcn_h
1566     dxgidebug_h
1567     dxva_h
1568     gsm_h
1569     io_h
1570     mach_mach_time_h
1571     machine_ioctl_bt848_h
1572     machine_ioctl_meteor_h
1573     malloc_h
1574     poll_h
1575     sndio_h
1576     soundcard_h
1577     stdatomic_h
1578     sys_mman_h
1579     sys_param_h
1580     sys_resource_h
1581     sys_select_h
1582     sys_soundcard_h
1583     sys_time_h
1584     sys_un_h
1585     sys_videoio_h
1586     unistd_h
1587     valgrind_valgrind_h
1588     windows_h
1589     winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593     intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597     atanf
1598     atan2f
1599     cbrtf
1600     cosf
1601     exp2
1602     exp2f
1603     expf
1604     isinf
1605     isnan
1606     ldexpf
1607     llrint
1608     llrintf
1609     log2
1610     log2f
1611     log10f
1612     lrint
1613     lrintf
1614     powf
1615     rint
1616     round
1617     roundf
1618     sinf
1619     trunc
1620     truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624     aligned_malloc
1625     clock_gettime
1626     closesocket
1627     CommandLineToArgvW
1628     CoTaskMemFree
1629     CryptGenRandom
1630     fcntl
1631     flt_lim
1632     fork
1633     getaddrinfo
1634     gethrtime
1635     getopt
1636     GetProcessAffinityMask
1637     GetProcessMemoryInfo
1638     GetProcessTimes
1639     getrusage
1640     GetSystemTimeAsFileTime
1641     gettimeofday
1642     gmtime_r
1643     inet_aton
1644     isatty
1645     LoadLibrary
1646     localtime_r
1647     mach_absolute_time
1648     MapViewOfFile
1649     memalign
1650     mkstemp
1651     mmap
1652     mprotect
1653     nanosleep
1654     posix_memalign
1655     sched_getaffinity
1656     SetConsoleTextAttribute
1657     setmode
1658     setrlimit
1659     Sleep
1660     strerror_r
1661     sysconf
1662     sysctl
1663     usleep
1664     VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668     as_arch_directive
1669     as_fpu_directive
1670     as_func
1671     as_object_arch
1672     asm_mod_q
1673     attribute_may_alias
1674     attribute_packed
1675     blocks_extension
1676     ebp_available
1677     ebx_available
1678     gnu_as
1679     ibm_asm
1680     inline_asm_labels
1681     pragma_deprecated
1682     symver_asm_label
1683     symver_gnu_asm
1684     vfp_args
1685     xform_asm
1686     xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690     CONDITION_VARIABLE_Ptr
1691     CUVIDDECODECREATEINFO_bitDepthMinus8
1692     socklen_t
1693     struct_addrinfo
1694     struct_group_source_req
1695     struct_ip_mreq_source
1696     struct_ipv6_mreq
1697     struct_pollfd
1698     struct_rusage_ru_maxrss
1699     struct_sockaddr_in6
1700     struct_sockaddr_sa_len
1701     struct_sockaddr_storage
1702     struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706     $ARCH_EXT_LIST
1707     $(add_suffix _external $ARCH_EXT_LIST)
1708     $(add_suffix _inline   $ARCH_EXT_LIST)
1709     $ARCH_FEATURES
1710     $BUILTIN_LIST
1711     $HAVE_LIST_CMDLINE
1712     $HAVE_LIST_PUB
1713     $HEADERS_LIST
1714     $INTRINSICS_LIST
1715     $MATH_FUNCS
1716     $SYSTEM_FUNCS
1717     $THREADS_LIST
1718     $TOOLCHAIN_FEATURES
1719     $TYPES_LIST
1720     dos_paths
1721     libc_msvcrt
1722     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723     sdl
1724     section_data_rel_ro
1725     threads
1726     uwp
1727     vaapi_drm
1728     vaapi_x11
1729     vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734     aandcttables
1735     ac3dsp
1736     adts_header
1737     audio_frame_queue
1738     audiodsp
1739     blockdsp
1740     bswapdsp
1741     cabac
1742     cbs
1743     cbs_h264
1744     cbs_h265
1745     cbs_mpeg2
1746     dirac_parse
1747     dvprofile
1748     faandct
1749     faanidct
1750     fdctdsp
1751     flacdsp
1752     fmtconvert
1753     g722dsp
1754     gmp
1755     golomb
1756     gplv3
1757     h263dsp
1758     h264chroma
1759     h264dsp
1760     h264parse
1761     h264pred
1762     h264qpel
1763     hevc_ps
1764     hpeldsp
1765     huffman
1766     huffyuvdsp
1767     huffyuvencdsp
1768     idctdsp
1769     iirfilter
1770     imdct15
1771     intrax8
1772     iso_media
1773     ividsp
1774     jpegtables
1775     lgplv3
1776     libx262
1777     libxcb_shape
1778     lpc
1779     lzf
1780     me_cmp
1781     mpeg_er
1782     mpegaudio
1783     mpegaudiodsp
1784     mpegaudioheader
1785     mpegvideo
1786     mpegvideoenc
1787     mss34dsp
1788     pixblockdsp
1789     qpeldsp
1790     qsv
1791     qsvdec
1792     qsvenc
1793     rangecoder
1794     riffdec
1795     riffenc
1796     rtpdec
1797     rtpenc_chain
1798     rv34dsp
1799     sinewin
1800     snappy
1801     srtp
1802     startcode
1803     texturedsp
1804     texturedspenc
1805     tpeldsp
1806     vaapi_encode
1807     vc1dsp
1808     videodsp
1809     vp3dsp
1810     vp56dsp
1811     vp8dsp
1812     wma_freqs
1813     wmv2dsp
1814 "
1815
1816 CMDLINE_SELECT="
1817     $ARCH_EXT_LIST
1818     $CONFIG_LIST
1819     $HAVE_LIST_CMDLINE
1820     $THREADS_LIST
1821     asm
1822     cross_compile
1823     debug
1824     extra_warnings
1825     logging
1826     lto
1827     optimizations
1828     rpath
1829 "
1830
1831 PATHS_LIST="
1832     bindir
1833     datadir
1834     docdir
1835     incdir
1836     libdir
1837     mandir
1838     prefix
1839     shlibdir
1840 "
1841
1842 CMDLINE_SET="
1843     $PATHS_LIST
1844     ar
1845     arch
1846     as
1847     cc
1848     objcc
1849     cpu
1850     cross_prefix
1851     custom_allocator
1852     dep_cc
1853     env
1854     extra_version
1855     host_cc
1856     host_cflags
1857     host_extralibs
1858     host_ld
1859     host_ldflags
1860     host_os
1861     ignore_tests
1862     ld
1863     logfile
1864     malloc_prefix
1865     nm
1866     optflags
1867     pkg_config
1868     pkg_config_flags
1869     random_seed
1870     samples
1871     sysinclude
1872     sysroot
1873     target_exec
1874     target_os
1875     target_path
1876     target_samples
1877     toolchain
1878     x86asmexe
1879 "
1880
1881 CMDLINE_APPEND="
1882     extra_cflags
1883     extra_objcflags
1884     host_cppflags
1885 "
1886
1887 # code dependency declarations
1888
1889 # architecture extensions
1890
1891 armv5te_deps="arm"
1892 armv6_deps="arm"
1893 armv6t2_deps="arm"
1894 armv8_deps="aarch64"
1895 neon_deps_any="aarch64 arm"
1896 intrinsics_neon_deps="neon"
1897 vfp_deps_any="aarch64 arm"
1898 vfpv3_deps="vfp"
1899
1900 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1901
1902 altivec_deps="ppc"
1903 dcbzl_deps="ppc"
1904 ldbrx_deps="ppc"
1905 ppc4xx_deps="ppc"
1906 vsx_deps="altivec"
1907 power8_deps="vsx"
1908
1909 loongson_deps="mips"
1910 mips32r1_deps="mips32"
1911 mips32r2_deps="mips32"
1912 mips32r6_deps="mips32"
1913 mips64r1_deps="mips64"
1914 mips64r2_deps="mips64"
1915 mips64r6_deps="mips64"
1916
1917 vis_deps="sparc"
1918
1919 cpunop_deps="i686"
1920 x86_64_select="i686"
1921 x86_64_suggest="fast_cmov"
1922
1923 amd3dnow_deps="mmx"
1924 amd3dnowext_deps="amd3dnow"
1925 i686_deps="x86"
1926 mmx_deps="x86"
1927 mmxext_deps="mmx"
1928 sse_deps="mmxext"
1929 sse2_deps="sse"
1930 sse3_deps="sse2"
1931 ssse3_deps="sse3"
1932 sse4_deps="ssse3"
1933 sse42_deps="sse4"
1934 avx_deps="sse42"
1935 xop_deps="avx"
1936 fma3_deps="avx"
1937 fma4_deps="avx"
1938 avx2_deps="avx"
1939
1940 mmx_external_deps="x86asm"
1941 mmx_inline_deps="inline_asm x86"
1942 mmx_suggest="mmx_external mmx_inline"
1943
1944 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1945     eval dep=\$${ext}_deps
1946     eval ${ext}_external_deps='"${dep}_external"'
1947     eval ${ext}_inline_deps='"${dep}_inline"'
1948     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1949 done
1950
1951 aligned_stack_if_any="aarch64 ppc x86"
1952 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1953 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1954 fast_unaligned_if_any="aarch64 ppc x86"
1955 simd_align_16_if_any="altivec neon sse"
1956 simd_align_32_if_any="avx"
1957
1958 # system capabilities
1959 symver_if_any="symver_asm_label symver_gnu_asm"
1960 valgrind_backtrace_conflict="optimizations"
1961 valgrind_backtrace_deps="valgrind_valgrind_h"
1962
1963 # threading support
1964 atomics_gcc_if="sync_val_compare_and_swap"
1965 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1966 atomics_win32_if="MemoryBarrier"
1967 atomics_native_if_any="$ATOMICS_LIST"
1968 w32threads_deps="atomics_native"
1969 threads_if_any="$THREADS_LIST"
1970
1971 # subsystems
1972 cbs_h264_select="cbs golomb"
1973 cbs_h265_select="cbs golomb"
1974 cbs_mpeg2_select="cbs"
1975 dct_select="rdft"
1976 dirac_parse_select="golomb"
1977 error_resilience_select="me_cmp"
1978 faandct_deps="faan"
1979 faandct_select="fdctdsp"
1980 faanidct_deps="faan"
1981 faanidct_select="idctdsp"
1982 h264dsp_select="startcode"
1983 hevc_ps_select="golomb"
1984 intrax8_select="blockdsp idctdsp"
1985 mdct_select="fft"
1986 rdft_select="fft"
1987 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1988 mpeg_er_select="error_resilience"
1989 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1990 mpegaudiodsp_select="dct"
1991 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1992 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1993 vc1dsp_select="h264chroma qpeldsp startcode"
1994
1995 # decoders / encoders
1996 aac_decoder_select="adts_header imdct15 mdct sinewin"
1997 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1998 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1999 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2000 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2001 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2002 adpcm_g722_decoder_select="g722dsp"
2003 adpcm_g722_encoder_select="g722dsp"
2004 aic_decoder_select="golomb idctdsp"
2005 alac_encoder_select="lpc"
2006 als_decoder_select="bswapdsp"
2007 amrnb_decoder_select="lsp"
2008 amrwb_decoder_select="lsp"
2009 amv_decoder_select="sp5x_decoder"
2010 ape_decoder_select="bswapdsp"
2011 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2014 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2015 atrac1_decoder_select="mdct sinewin"
2016 atrac3_decoder_select="mdct"
2017 atrac3p_decoder_select="mdct sinewin"
2018 bink_decoder_select="blockdsp hpeldsp"
2019 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2020 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2021 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2022 clearvideo_decoder_select="idctdsp"
2023 cllc_decoder_select="bswapdsp"
2024 comfortnoise_encoder_select="lpc"
2025 cook_decoder_select="audiodsp mdct sinewin"
2026 cscd_decoder_select="lzo"
2027 cscd_decoder_suggest="zlib"
2028 dca_decoder_select="fmtconvert mdct"
2029 dds_decoder_select="texturedsp"
2030 dnxhd_decoder_select="blockdsp idctdsp"
2031 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2032 dvvideo_decoder_select="dvprofile idctdsp"
2033 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2034 dxa_decoder_deps="zlib"
2035 dxv_decoder_select="lzf texturedsp"
2036 eac3_decoder_select="ac3_decoder"
2037 eac3_encoder_select="ac3_encoder"
2038 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2039 eatgq_decoder_select="aandcttables idctdsp"
2040 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2041 exr_decoder_deps="zlib"
2042 ffv1_decoder_select="rangecoder"
2043 ffv1_encoder_select="rangecoder"
2044 ffvhuff_decoder_select="huffyuv_decoder"
2045 ffvhuff_encoder_select="huffyuv_encoder"
2046 fic_decoder_select="golomb"
2047 flac_decoder_select="flacdsp"
2048 flac_encoder_select="bswapdsp flacdsp lpc"
2049 flashsv_decoder_deps="zlib"
2050 flashsv_encoder_deps="zlib"
2051 flashsv2_decoder_deps="zlib"
2052 flv_decoder_select="h263_decoder"
2053 flv_encoder_select="h263_encoder"
2054 fourxm_decoder_select="blockdsp bswapdsp"
2055 fraps_decoder_select="bswapdsp huffman"
2056 g2m_decoder_deps="zlib"
2057 g2m_decoder_select="blockdsp idctdsp jpegtables"
2058 h261_decoder_select="mpeg_er mpegvideo"
2059 h261_encoder_select="aandcttables mpegvideoenc"
2060 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2061 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2062 h263i_decoder_select="h263_decoder"
2063 h263p_encoder_select="h263_encoder"
2064 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2065 h264_decoder_suggest="error_resilience"
2066 hap_decoder_select="snappy texturedsp"
2067 hap_encoder_deps="libsnappy"
2068 hap_encoder_select="texturedspenc"
2069 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2070 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2071 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2072 iac_decoder_select="imc_decoder"
2073 imc_decoder_select="bswapdsp fft mdct sinewin"
2074 indeo3_decoder_select="hpeldsp"
2075 indeo4_decoder_select="ividsp"
2076 indeo5_decoder_select="ividsp"
2077 interplay_video_decoder_select="hpeldsp"
2078 jpegls_decoder_select="mjpeg_decoder"
2079 jv_decoder_select="blockdsp"
2080 lagarith_decoder_select="huffyuvdsp"
2081 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2082 magicyuv_decoder_select="huffyuvdsp"
2083 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2084 metasound_decoder_select="lsp mdct sinewin"
2085 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2086 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2087 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2088 mjpegb_decoder_select="mjpeg_decoder"
2089 mlp_decoder_select="mlp_parser"
2090 motionpixels_decoder_select="bswapdsp"
2091 mp1_decoder_select="mpegaudio"
2092 mp1float_decoder_select="mpegaudio"
2093 mp2_decoder_select="mpegaudio"
2094 mp2float_decoder_select="mpegaudio"
2095 mp3_decoder_select="mpegaudio"
2096 mp3adu_decoder_select="mpegaudio"
2097 mp3adufloat_decoder_select="mpegaudio"
2098 mp3float_decoder_select="mpegaudio"
2099 mp3on4_decoder_select="mpegaudio"
2100 mp3on4float_decoder_select="mpegaudio"
2101 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2102 mpc8_decoder_select="mpegaudiodsp"
2103 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2106 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2107 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2108 mpeg4_encoder_select="h263_encoder"
2109 msa1_decoder_select="mss34dsp"
2110 msmpeg4v1_decoder_select="h263_decoder"
2111 msmpeg4v2_decoder_select="h263_decoder"
2112 msmpeg4v2_encoder_select="h263_encoder"
2113 msmpeg4v3_decoder_select="h263_decoder"
2114 msmpeg4v3_encoder_select="h263_encoder"
2115 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2116 mts2_decoder_select="mss34dsp"
2117 mxpeg_decoder_select="mjpeg_decoder"
2118 nellymoser_decoder_select="mdct sinewin"
2119 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2120 nuv_decoder_select="idctdsp lzo"
2121 on2avc_decoder_select="mdct"
2122 opus_decoder_deps="avresample"
2123 opus_decoder_select="imdct15"
2124 png_decoder_deps="zlib"
2125 png_encoder_deps="zlib"
2126 png_encoder_select="huffyuvencdsp"
2127 prores_decoder_select="idctdsp"
2128 prores_encoder_select="fdctdsp"
2129 qcelp_decoder_select="lsp"
2130 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2131 ra_144_encoder_select="audio_frame_queue lpc"
2132 ralf_decoder_select="golomb"
2133 rscc_decoder_deps="zlib"
2134 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv10_encoder_select="h263_encoder"
2136 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2137 rv20_encoder_select="h263_encoder"
2138 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2139 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2140 screenpresso_decoder_deps="zlib"
2141 sipr_decoder_select="lsp"
2142 sp5x_decoder_select="mjpeg_decoder"
2143 svq1_decoder_select="hpeldsp"
2144 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2145 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2146 svq3_decoder_suggest="zlib"
2147 tak_decoder_select="audiodsp"
2148 tdsc_decoder_deps="zlib"
2149 tdsc_decoder_select="mjpeg_decoder"
2150 theora_decoder_select="vp3_decoder"
2151 thp_decoder_select="mjpeg_decoder"
2152 tiff_decoder_suggest="zlib"
2153 tiff_encoder_suggest="zlib"
2154 truehd_decoder_select="mlp_decoder"
2155 truemotion2_decoder_select="bswapdsp"
2156 truespeech_decoder_select="bswapdsp"
2157 tscc_decoder_deps="zlib"
2158 txd_decoder_select="texturedsp"
2159 twinvq_decoder_select="mdct lsp sinewin"
2160 utvideo_decoder_select="bswapdsp huffyuvdsp"
2161 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2162 vble_decoder_select="huffyuvdsp"
2163 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2164 vc1image_decoder_select="vc1_decoder"
2165 vorbis_decoder_select="mdct"
2166 vorbis_encoder_select="mdct"
2167 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2168 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2169 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2170 vp6a_decoder_select="vp6_decoder"
2171 vp6f_decoder_select="vp6_decoder"
2172 vp7_decoder_select="h264pred videodsp vp8dsp"
2173 vp8_decoder_select="h264pred videodsp vp8dsp"
2174 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2175 webp_decoder_select="vp8_decoder"
2176 wmapro_decoder_select="mdct sinewin wma_freqs"
2177 wmav1_decoder_select="mdct sinewin wma_freqs"
2178 wmav1_encoder_select="mdct sinewin wma_freqs"
2179 wmav2_decoder_select="mdct sinewin wma_freqs"
2180 wmav2_encoder_select="mdct sinewin wma_freqs"
2181 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2182 wmv1_decoder_select="h263_decoder"
2183 wmv1_encoder_select="h263_encoder"
2184 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2185 wmv2_encoder_select="h263_encoder wmv2dsp"
2186 wmv3_decoder_select="vc1_decoder"
2187 wmv3image_decoder_select="wmv3_decoder"
2188 zerocodec_decoder_deps="zlib"
2189 zlib_decoder_deps="zlib"
2190 zlib_encoder_deps="zlib"
2191 zmbv_decoder_deps="zlib"
2192 zmbv_encoder_deps="zlib"
2193
2194 # hardware accelerators
2195 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2196 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2197 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2198 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2199
2200 h263_vaapi_hwaccel_deps="vaapi"
2201 h263_vaapi_hwaccel_select="h263_decoder"
2202 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2203 h264_cuvid_hwaccel_select="h264_decoder"
2204 h264_d3d11va_hwaccel_deps="d3d11va"
2205 h264_d3d11va_hwaccel_select="h264_decoder"
2206 h264_d3d11va2_hwaccel_deps="d3d11va"
2207 h264_d3d11va2_hwaccel_select="h264_decoder"
2208 h264_dxva2_hwaccel_deps="dxva2"
2209 h264_dxva2_hwaccel_select="h264_decoder"
2210 h264_mmal_hwaccel_deps="mmal"
2211 h264_qsv_hwaccel_deps="libmfx"
2212 h264_vaapi_hwaccel_deps="vaapi"
2213 h264_vaapi_hwaccel_select="h264_decoder"
2214 h264_vda_hwaccel_deps="vda"
2215 h264_vda_hwaccel_select="h264_decoder"
2216 h264_vda_old_hwaccel_deps="vda"
2217 h264_vda_old_hwaccel_select="h264_decoder"
2218 h264_vdpau_hwaccel_deps="vdpau"
2219 h264_vdpau_hwaccel_select="h264_decoder"
2220 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2221 hevc_cuvid_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va_hwaccel_select="hevc_decoder"
2224 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2225 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2226 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2227 hevc_dxva2_hwaccel_select="hevc_decoder"
2228 hevc_qsv_hwaccel_deps="libmfx"
2229 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2230 hevc_vaapi_hwaccel_select="hevc_decoder"
2231 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2232 hevc_vdpau_hwaccel_select="hevc_decoder"
2233 mpeg1_vdpau_hwaccel_deps="vdpau"
2234 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2235 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2238 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_dxva2_hwaccel_deps="dxva2"
2240 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2241 mpeg2_mmal_hwaccel_deps="mmal"
2242 mpeg2_qsv_hwaccel_deps="libmfx"
2243 mpeg2_vaapi_hwaccel_deps="vaapi"
2244 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2245 mpeg2_vdpau_hwaccel_deps="vdpau"
2246 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2247 mpeg4_vaapi_hwaccel_deps="vaapi"
2248 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2249 mpeg4_vdpau_hwaccel_deps="vdpau"
2250 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2251 vc1_d3d11va_hwaccel_deps="d3d11va"
2252 vc1_d3d11va_hwaccel_select="vc1_decoder"
2253 vc1_d3d11va2_hwaccel_deps="d3d11va"
2254 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2255 vc1_dxva2_hwaccel_deps="dxva2"
2256 vc1_dxva2_hwaccel_select="vc1_decoder"
2257 vc1_mmal_hwaccel_deps="mmal"
2258 vc1_qsv_hwaccel_deps="libmfx"
2259 vc1_vaapi_hwaccel_deps="vaapi"
2260 vc1_vaapi_hwaccel_select="vc1_decoder"
2261 vc1_vdpau_hwaccel_deps="vdpau"
2262 vc1_vdpau_hwaccel_select="vc1_decoder"
2263 vp8_qsv_hwaccel_deps="libmfx"
2264 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2265 vp8_vaapi_hwaccel_select="vp8_decoder"
2266 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2267 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2268 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2269 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2270 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2271
2272 # hardware-accelerated codecs
2273 nvenc_deps_any="libdl LoadLibrary"
2274 omx_deps="libdl pthreads"
2275 omx_rpi_select="omx"
2276 qsv_deps="libmfx"
2277 qsvdec_select="qsv"
2278 qsvenc_select="qsv"
2279 vaapi_encode_deps="vaapi"
2280
2281 hwupload_cuda_filter_deps="cuda"
2282 scale_npp_filter_deps="cuda libnpp"
2283
2284 h264_mmal_decoder_deps="mmal"
2285 h264_nvenc_encoder_deps="nvenc"
2286 h264_omx_encoder_deps="omx"
2287 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2288 h264_qsv_encoder_select="qsvenc"
2289 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2290 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2291 hevc_nvenc_encoder_deps="nvenc"
2292 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2293 hevc_qsv_encoder_select="hevc_ps qsvenc"
2294 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2295 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2296 mjpeg_qsv_encoder_deps="libmfx"
2297 mjpeg_qsv_encoder_select="qsvenc"
2298 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2299 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2300 mpeg2_mmal_decoder_deps="mmal"
2301 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2302 mpeg2_qsv_encoder_select="qsvenc"
2303 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2304 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2305 mpeg4_omx_encoder_deps="omx"
2306 vc1_mmal_decoder_deps="mmal"
2307 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2308 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2309 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2310 vp8_vaapi_encoder_select="vaapi_encode"
2311 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2312 vp9_vaapi_encoder_select="vaapi_encode"
2313
2314 nvenc_h264_encoder_select="h264_nvenc_encoder"
2315 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2316
2317 # parsers
2318 aac_parser_select="adts_header"
2319 h264_parser_select="golomb h264dsp h264parse"
2320 hevc_parser_select="hevc_ps"
2321 mpegaudio_parser_select="mpegaudioheader"
2322 mpegvideo_parser_select="mpegvideo"
2323 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2324 vc1_parser_select="vc1dsp"
2325
2326 # bitstream_filters
2327 aac_adtstoasc_bsf_select="adts_header"
2328 h264_metadata_bsf_select="cbs_h264"
2329 h264_redundant_pps_bsf_select="cbs_h264"
2330 hevc_metadata_bsf_select="cbs_h265"
2331 mjpeg2jpeg_bsf_select="jpegtables"
2332 mpeg2_metadata_bsf_select="cbs_mpeg2"
2333 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2334
2335 # external libraries
2336 avisynth_deps="LoadLibrary"
2337 avxsynth_deps="libdl"
2338 avisynth_demuxer_deps_any="avisynth avxsynth"
2339 avisynth_demuxer_select="riffdec"
2340 libdcadec_decoder_deps="libdcadec"
2341 libfaac_encoder_deps="libfaac"
2342 libfaac_encoder_select="audio_frame_queue"
2343 libfdk_aac_decoder_deps="libfdk_aac"
2344 libfdk_aac_encoder_deps="libfdk_aac"
2345 libfdk_aac_encoder_select="audio_frame_queue"
2346 libgsm_decoder_deps="libgsm"
2347 libgsm_encoder_deps="libgsm"
2348 libgsm_ms_decoder_deps="libgsm"
2349 libgsm_ms_encoder_deps="libgsm"
2350 libilbc_decoder_deps="libilbc"
2351 libilbc_encoder_deps="libilbc"
2352 libkvazaar_encoder_deps="libkvazaar"
2353 libmp3lame_encoder_deps="libmp3lame"
2354 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2355 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2356 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2357 libopencore_amrnb_encoder_select="audio_frame_queue"
2358 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2359 libopenh264_decoder_deps="libopenh264"
2360 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2361 libopenh264_encoder_deps="libopenh264"
2362 libopenjpeg_decoder_deps="libopenjpeg"
2363 libopenjpeg_encoder_deps="libopenjpeg"
2364 libopus_decoder_deps="libopus"
2365 libopus_encoder_deps="libopus"
2366 libopus_encoder_select="audio_frame_queue"
2367 libschroedinger_decoder_deps="libschroedinger"
2368 libschroedinger_encoder_deps="libschroedinger"
2369 libspeex_decoder_deps="libspeex"
2370 libspeex_encoder_deps="libspeex"
2371 libspeex_encoder_select="audio_frame_queue"
2372 libtheora_encoder_deps="libtheora"
2373 libtwolame_encoder_deps="libtwolame"
2374 libvo_aacenc_encoder_deps="libvo_aacenc"
2375 libvo_aacenc_encoder_select="audio_frame_queue"
2376 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2377 libvorbis_encoder_deps="libvorbis"
2378 libvorbis_encoder_select="audio_frame_queue"
2379 libvpx_vp8_decoder_deps="libvpx"
2380 libvpx_vp8_encoder_deps="libvpx"
2381 libvpx_vp9_decoder_deps="libvpx"
2382 libvpx_vp9_encoder_deps="libvpx"
2383 libwavpack_encoder_deps="libwavpack"
2384 libwavpack_encoder_select="audio_frame_queue"
2385 libwebp_encoder_deps="libwebp"
2386 libx262_encoder_deps="libx262"
2387 libx264_encoder_deps="libx264"
2388 libx265_encoder_deps="libx265"
2389 libxavs_encoder_deps="libxavs"
2390 libxvid_encoder_deps="libxvid mkstemp"
2391
2392 # demuxers / muxers
2393 ac3_demuxer_select="ac3_parser"
2394 asf_demuxer_select="riffdec"
2395 asf_muxer_select="riffenc"
2396 asf_stream_muxer_select="asf_muxer"
2397 avi_demuxer_select="iso_media riffdec"
2398 avi_muxer_select="riffenc"
2399 caf_demuxer_select="iso_media riffdec"
2400 dash_muxer_select="mp4_muxer"
2401 dirac_demuxer_select="dirac_parser"
2402 dv_demuxer_select="dvprofile"
2403 dv_muxer_select="dvprofile"
2404 dxa_demuxer_select="riffdec"
2405 eac3_demuxer_select="ac3_parser"
2406 f4v_muxer_select="mov_muxer"
2407 flac_demuxer_select="flac_parser"
2408 hds_muxer_select="flv_muxer"
2409 hls_muxer_select="mpegts_muxer"
2410 ipod_muxer_select="mov_muxer"
2411 ismv_muxer_select="mov_muxer"
2412 matroska_audio_muxer_select="matroska_muxer"
2413 matroska_demuxer_select="iso_media riffdec"
2414 matroska_demuxer_suggest="bzlib lzo zlib"
2415 matroska_muxer_select="iso_media riffenc"
2416 mmf_muxer_select="riffenc"
2417 mov_demuxer_select="iso_media riffdec"
2418 mov_demuxer_suggest="zlib"
2419 mov_muxer_select="iso_media riffenc rtpenc_chain"
2420 mp3_demuxer_select="mpegaudio_parser"
2421 mp3_muxer_select="mpegaudioheader"
2422 mp4_muxer_select="mov_muxer"
2423 mpegts_demuxer_select="iso_media"
2424 mpegts_muxer_select="adts_muxer latm_muxer"
2425 mpegtsraw_demuxer_select="mpegts_demuxer"
2426 mxf_d10_muxer_select="mxf_muxer"
2427 nut_muxer_select="riffenc"
2428 nuv_demuxer_select="riffdec"
2429 oga_muxer_select="ogg_muxer"
2430 ogg_demuxer_select="dirac_parse"
2431 opus_muxer_select="ogg_muxer"
2432 psp_muxer_select="mov_muxer"
2433 rtp_demuxer_select="sdp_demuxer"
2434 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2435 rtsp_demuxer_select="http_protocol rtpdec"
2436 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2437 sap_demuxer_select="sdp_demuxer"
2438 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2439 sdp_demuxer_select="rtpdec"
2440 smoothstreaming_muxer_select="ismv_muxer"
2441 spdif_demuxer_select="adts_header"
2442 spdif_muxer_select="adts_header"
2443 spx_muxer_select="ogg_muxer"
2444 swf_demuxer_suggest="zlib"
2445 tak_demuxer_select="tak_parser"
2446 tg2_muxer_select="mov_muxer"
2447 tgp_muxer_select="mov_muxer"
2448 w64_demuxer_select="wav_demuxer"
2449 wav_demuxer_select="riffdec"
2450 wav_muxer_select="riffenc"
2451 webm_muxer_select="iso_media riffenc"
2452 wtv_demuxer_select="mpegts_demuxer riffdec"
2453 xmv_demuxer_select="riffdec"
2454 xwma_demuxer_select="riffdec"
2455
2456 # indevs / outdevs
2457 alsa_indev_deps="alsa"
2458 alsa_outdev_deps="alsa"
2459 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2460 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2461 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2462 dv1394_indev_deps="dv1394"
2463 dv1394_indev_select="dv_demuxer"
2464 fbdev_indev_deps="linux_fb_h"
2465 jack_indev_deps="libjack"
2466 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2467 libcdio_indev_deps="libcdio"
2468 libdc1394_indev_deps="libdc1394"
2469 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2470 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2471 pulse_indev_deps="libpulse"
2472 sndio_indev_deps="sndio"
2473 sndio_outdev_deps="sndio"
2474 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2475 vfwcap_indev_deps="vfw32 vfwcap_defines"
2476 xcbgrab_indev_deps="libxcb libxcb_shape"
2477 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2478
2479 # protocols
2480 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2481 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2482 ffrtmpcrypt_protocol_select="tcp_protocol"
2483 ffrtmphttp_protocol_conflict="librtmp_protocol"
2484 ffrtmphttp_protocol_select="http_protocol"
2485 gopher_protocol_select="network"
2486 http_protocol_select="tcp_protocol"
2487 http_protocol_suggest="zlib"
2488 httpproxy_protocol_select="tcp_protocol"
2489 httpproxy_protocol_suggest="zlib"
2490 https_protocol_select="tls_protocol"
2491 https_protocol_suggest="zlib"
2492 icecast_protocol_select="http_protocol"
2493 librtmp_protocol_deps="librtmp"
2494 librtmpe_protocol_deps="librtmp"
2495 librtmps_protocol_deps="librtmp"
2496 librtmpt_protocol_deps="librtmp"
2497 librtmpte_protocol_deps="librtmp"
2498 mmsh_protocol_select="http_protocol"
2499 mmst_protocol_select="network"
2500 rtmp_protocol_conflict="librtmp_protocol"
2501 rtmp_protocol_select="tcp_protocol"
2502 rtmp_protocol_suggest="zlib"
2503 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2504 rtmpe_protocol_suggest="zlib"
2505 rtmps_protocol_conflict="librtmp_protocol"
2506 rtmps_protocol_select="tls_protocol"
2507 rtmps_protocol_suggest="zlib"
2508 rtmpt_protocol_select="ffrtmphttp_protocol"
2509 rtmpt_protocol_suggest="zlib"
2510 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2511 rtmpte_protocol_suggest="zlib"
2512 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2513 rtmpts_protocol_suggest="zlib"
2514 rtp_protocol_select="udp_protocol"
2515 sctp_protocol_deps="struct_sctp_event_subscribe"
2516 sctp_protocol_select="network"
2517 srtp_protocol_select="rtp_protocol srtp"
2518 tcp_protocol_select="network"
2519 tls_protocol_deps_any="gnutls openssl"
2520 tls_protocol_select="tcp_protocol"
2521 udp_protocol_select="network"
2522 unix_protocol_deps="sys_un_h"
2523 unix_protocol_select="network"
2524
2525 # filters
2526 asyncts_filter_deps="avresample"
2527 blackframe_filter_deps="gpl"
2528 boxblur_filter_deps="gpl"
2529 bs2b_filter_deps="libbs2b"
2530 cropdetect_filter_deps="gpl"
2531 deinterlace_qsv_filter_deps="libmfx"
2532 deinterlace_vaapi_filter_deps="vaapi"
2533 delogo_filter_deps="gpl"
2534 drawtext_filter_deps="libfreetype"
2535 drawtext_filter_suggest="libfontconfig"
2536 frei0r_filter_deps="frei0r libdl"
2537 frei0r_src_filter_deps="frei0r libdl"
2538 hdcd_filter_deps="libhdcd"
2539 hqdn3d_filter_deps="gpl"
2540 interlace_filter_deps="gpl"
2541 movie_filter_deps="avcodec avformat"
2542 ocv_filter_deps="libopencv"
2543 resample_filter_deps="avresample"
2544 scale_filter_deps="swscale"
2545 scale_qsv_filter_deps="libmfx"
2546 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2547 vpp_qsv_filter_deps="libmfx"
2548 vpp_qsv_filter_select="qsvvpp"
2549
2550 # examples
2551 decode_audio_example_deps="avcodec avutil"
2552 decode_video_example_deps="avcodec avutil"
2553 encode_audio_example_deps="avcodec avutil"
2554 encode_video_example_deps="avcodec avutil"
2555 filter_audio_example_deps="avfilter avutil"
2556 metadata_example_deps="avformat avutil"
2557 output_example_deps="avcodec avformat avresample avutil swscale"
2558 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2559 transcode_aac_example_deps="avcodec avformat avresample"
2560
2561 # EXTRALIBS_LIST
2562 cpu_init_extralibs="pthreads_extralibs"
2563 cws2fws_extralibs="zlib_extralibs"
2564
2565 # libraries, in linking order
2566 avcodec_deps="avutil"
2567 avcodec_select="null_bsf"
2568 avdevice_deps="avformat avcodec avutil"
2569 avfilter_deps="avutil"
2570 avformat_deps="avcodec avutil"
2571 avformat_suggest="network"
2572 avresample_deps="avutil"
2573 swscale_deps="avutil"
2574
2575 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2576 avdevice_extralibs="libm_extralibs"
2577 avformat_extralibs="libm_extralibs"
2578 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2579 avresample_extralibs="libm_extralibs"
2580 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2581 swscale_extralibs="libm_extralibs"
2582
2583 # programs
2584 avconv_deps="avcodec avfilter avformat avresample swscale"
2585 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2586                fps_filter null_filter resample_filter scale_filter
2587                trim_filter"
2588 avconv_suggest="psapi shell32"
2589 avplay_deps="avcodec avfilter avformat avresample sdl"
2590 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2591 avplay_suggest="shell32"
2592 avprobe_deps="avcodec avformat"
2593 avprobe_suggest="shell32"
2594
2595 # documentation
2596 pod2man_deps="doc"
2597 texi2html_deps="doc"
2598
2599 # default parameters
2600
2601 logfile="avbuild/config.log"
2602
2603 # installation paths
2604 prefix_default="/usr/local"
2605 bindir_default='${prefix}/bin'
2606 datadir_default='${prefix}/share/avconv'
2607 docdir_default='${prefix}/share/doc/libav'
2608 incdir_default='${prefix}/include'
2609 libdir_default='${prefix}/lib'
2610 mandir_default='${prefix}/share/man'
2611 shlibdir_default="$libdir_default"
2612
2613 # toolchain
2614 ar_default="ar"
2615 cc_default="gcc"
2616 host_cc_default="gcc"
2617 x86asmexe_default="nasm"
2618 ln_s="ln -s -f"
2619 nm_default="nm -g"
2620 pkg_config_default=pkg-config
2621 ranlib="ranlib"
2622 strip="strip"
2623 version_script='--version-script'
2624
2625 # machine
2626 arch_default=$(uname -m)
2627 cpu="generic"
2628 intrinsics="none"
2629
2630 # OS
2631 target_os_default=$(tolower $(uname -s))
2632 host_os=$target_os_default
2633
2634 # configurable options
2635 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2636
2637 enable asm
2638 enable debug
2639 enable doc
2640 enable faan faandct faanidct
2641 enable optimizations
2642 enable safe_bitstream_reader
2643 enable static
2644 enable swscale_alpha
2645 enable valgrind_backtrace
2646
2647 # By default, enable only those hwaccels that have no external dependencies.
2648 enable d3d11va dxva2 vda vdpau
2649
2650 # internal components are enabled by default
2651 enable $EXTRALIBS_LIST
2652
2653 # Avoid external, non-system, libraries getting enabled by dependency resolution
2654 disable $EXTERNAL_LIBRARY_LIST
2655
2656 # build settings
2657 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2658 LIBPREF="lib"
2659 LIBSUF=".a"
2660 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2661 SLIBPREF="lib"
2662 SLIBSUF=".so"
2663 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2664 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2665 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2666 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2667 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2668 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2669 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2670
2671 asflags_filter=echo
2672 cflags_filter=echo
2673 ldflags_filter=echo
2674
2675 AS_C='-c'
2676 AS_O='-o $@'
2677 CC_C='-c'
2678 CC_E='-E -o $@'
2679 CC_O='-o $@'
2680 OBJCC_C='-c'
2681 OBJCC_E='-E -o $@'
2682 OBJCC_O='-o $@'
2683 X86ASM_O='-o $@'
2684 LD_O='-o $@'
2685 LD_LIB='-l%'
2686 LD_PATH='-L'
2687 HOSTCC_C='-c'
2688 HOSTCC_E='-E -o $@'
2689 HOSTCC_O='-o $@'
2690 HOSTLD_O='-o $@'
2691
2692 host_extralibs='-lm'
2693 host_cflags_filter=echo
2694 host_ldflags_filter=echo
2695
2696 target_path='$(CURDIR)'
2697
2698 # since the object filename is not given with the -MM flag, the compiler
2699 # is only able to print the basename, and we must add the path ourselves
2700 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2701 DEPFLAGS='-MM'
2702
2703 mkdir -p avbuild
2704
2705 # find source path
2706 if test -f configure; then
2707     source_path=.
2708 else
2709     source_path=$(cd $(dirname "$0"); pwd)
2710     echo "$source_path" | grep -q '[[:blank:]]' &&
2711         die "Out of tree builds are impossible with whitespace in source path."
2712     test -e "$source_path/config.h" &&
2713         die "Out of tree builds are impossible with config.h in source dir."
2714 fi
2715
2716 for v in "$@"; do
2717     r=${v#*=}
2718     l=${v%"$r"}
2719     r=$(sh_quote "$r")
2720     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2721 done
2722
2723 find_things(){
2724     thing=$1
2725     pattern=$2
2726     file=$source_path/$3
2727     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2728 }
2729
2730 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2731 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2732 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2733 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2734 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2735 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2736 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2737 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2738 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2739
2740 find_things_extern(){
2741     thing=$1
2742     pattern=$2
2743     file=$source_path/$3
2744     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2745 }
2746
2747 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2748 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2749
2750 AVCODEC_COMPONENTS_LIST="
2751     $BSF_LIST
2752     $DECODER_LIST
2753     $ENCODER_LIST
2754     $HWACCEL_LIST
2755     $PARSER_LIST
2756 "
2757
2758 AVDEVICE_COMPONENTS_LIST="
2759     $INDEV_LIST
2760     $OUTDEV_LIST
2761 "
2762
2763 AVFILTER_COMPONENTS_LIST="
2764     $FILTER_LIST
2765 "
2766
2767 AVFORMAT_COMPONENTS_LIST="
2768     $DEMUXER_LIST
2769     $MUXER_LIST
2770     $PROTOCOL_LIST
2771 "
2772
2773 ALL_COMPONENTS="
2774     $AVCODEC_COMPONENTS_LIST
2775     $AVDEVICE_COMPONENTS_LIST
2776     $AVFILTER_COMPONENTS_LIST
2777     $AVFORMAT_COMPONENTS_LIST
2778 "
2779
2780 for n in $COMPONENT_LIST; do
2781     v=$(toupper ${n%s})_LIST
2782     eval enable \$$v
2783     eval ${n}_if_any="\$$v"
2784 done
2785
2786 enable $ARCH_EXT_LIST
2787
2788 die_unknown(){
2789     echo "Unknown option \"$1\"."
2790     echo "See $0 --help for available options."
2791     exit 1
2792 }
2793
2794 print_3_columns() {
2795     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2796 }
2797
2798 show_list() {
2799     suffix=_$1
2800     shift
2801     echo $* | sed s/$suffix//g | print_3_columns
2802     exit 0
2803 }
2804
2805 rand_list(){
2806     IFS=', '
2807     set -- $*
2808     unset IFS
2809     for thing; do
2810         comp=${thing%:*}
2811         prob=${thing#$comp}
2812         prob=${prob#:}
2813         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2814         echo "prob ${prob:-0.5}"
2815         printf '%s\n' $comp
2816     done
2817 }
2818
2819 do_random(){
2820     action=$1
2821     shift
2822     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2823     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2824 }
2825
2826 for opt do
2827     optval="${opt#*=}"
2828     case "$opt" in
2829         --extra-ldflags=*)
2830             add_ldflags $optval
2831         ;;
2832         --extra-ldexeflags=*)
2833             add_ldexeflags $optval
2834         ;;
2835         --extra-ldsoflags=*)
2836             add_ldsoflags $optval
2837         ;;
2838         --extra-libs=*)
2839             add_extralibs $optval
2840         ;;
2841         --disable-devices)
2842             disable $INDEV_LIST $OUTDEV_LIST
2843         ;;
2844         --enable-debug=*)
2845             debuglevel="$optval"
2846         ;;
2847         --disable-programs)
2848             disable $PROGRAM_LIST
2849         ;;
2850         --disable-everything)
2851             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2852         ;;
2853         --disable-all)
2854             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2855             disable $LIBRARY_LIST $PROGRAM_LIST doc
2856         ;;
2857         --enable-random|--disable-random)
2858             action=${opt%%-random}
2859             do_random ${action#--} $COMPONENT_LIST
2860         ;;
2861         --enable-random=*|--disable-random=*)
2862             action=${opt%%-random=*}
2863             do_random ${action#--} $optval
2864         ;;
2865         --enable-*=*|--disable-*=*)
2866             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2867             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2868             eval list=\$$(toupper $thing)_LIST
2869             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2870             $action $(filter "$name" $list)
2871         ;;
2872         --enable-avserver|--disable-avserver*)
2873             warn "avserver has been removed, the ${opt} option is only"\
2874                  "provided for compatibility and will be removed in the future"
2875         ;;
2876         --enable-yasm|--disable-yasm)
2877             warn "The ${opt} option is only provided for compatibility and will be\n"\
2878                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2879             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2880         ;;
2881         --enable-?*|--disable-?*)
2882             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2883             if is_in $option $COMPONENT_LIST; then
2884                 test $action = disable && action=unset
2885                 eval $action \$$(toupper ${option%s})_LIST
2886             elif is_in $option $CMDLINE_SELECT; then
2887                 $action $option
2888             else
2889                 die_unknown $opt
2890             fi
2891         ;;
2892         --list-*)
2893             NAME="${opt#--list-}"
2894             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2895             NAME=${NAME%s}
2896             eval show_list $NAME \$$(toupper $NAME)_LIST
2897         ;;
2898         --help|-h) show_help
2899         ;;
2900         --quiet|-q) quiet=yes
2901         ;;
2902         *)
2903             optname="${opt%%=*}"
2904             optname="${optname#--}"
2905             optname=$(echo "$optname" | sed 's/-/_/g')
2906             if is_in $optname $CMDLINE_SET; then
2907                 eval $optname='$optval'
2908             elif is_in $optname $CMDLINE_APPEND; then
2909                 append $optname "$optval"
2910             else
2911                 die_unknown $opt
2912             fi
2913         ;;
2914     esac
2915 done
2916
2917 for e in $env; do
2918     eval "export $e"
2919 done
2920
2921 disabled logging && logfile=/dev/null
2922
2923 # Die early if licensing-related configure options are incompatible.
2924 die_license_disabled() {
2925     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2926 }
2927
2928 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2929 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2930 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2931
2932 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2933
2934 enabled_all gnutls openssl &&
2935     die "GnuTLS and OpenSSL must not be enabled at the same time."
2936
2937 # Disable all the library-specific components if the library itself
2938 # is disabled, see AVCODEC_LIST and following _LIST variables.
2939
2940 disable_components(){
2941     disabled ${1} && disable $(
2942         eval components="\$$(toupper ${1})_COMPONENTS"
2943         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2944     )
2945 }
2946
2947 map 'disable_components $v' $LIBRARY_LIST
2948
2949 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2950 set >> $logfile
2951
2952 case "$toolchain" in
2953     *-asan)
2954         cc_default="${toolchain%-asan}"
2955         add_cflags  -fsanitize=address
2956         add_ldflags -fsanitize=address
2957     ;;
2958     *-msan)
2959         cc_default="${toolchain%-msan}"
2960         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2961         add_ldflags -fsanitize=memory
2962     ;;
2963     *-tsan)
2964         cc_default="${toolchain%-tsan}"
2965         add_cflags  -fsanitize=thread -fPIE
2966         add_ldflags -fsanitize=thread -pie
2967         case "$toolchain" in
2968             gcc-tsan)
2969                 add_cflags  -fPIC
2970                 add_ldflags -fPIC
2971                 ;;
2972         esac
2973     ;;
2974     *-usan)
2975         cc_default="${toolchain%-usan}"
2976         add_cflags  -fsanitize=undefined
2977         add_ldflags -fsanitize=undefined
2978         case "$toolchain" in
2979             clang-usan)
2980                 add_cflags -O1
2981                 ;;
2982         esac
2983     ;;
2984     valgrind-*)
2985         target_exec_default="valgrind"
2986         case "$toolchain" in
2987             valgrind-massif)
2988                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2989                 ;;
2990             valgrind-memcheck)
2991                 target_exec_args="--track-origins=yes --leak-check=full"
2992                 ;;
2993         esac
2994     ;;
2995     msvc)
2996         # Check whether the current MSVC version needs the C99 converter.
2997         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2998         # support enough of C99 to build libav. Default to the new
2999         # behaviour if the regexp was unable to match anything, since this
3000         # successfully parses the version number of existing supported
3001         # versions that require the converter (MSVC 2010 and 2012).
3002         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3003         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3004             cc_default="cl"
3005         else
3006             cc_default="c99wrap cl"
3007         fi
3008         ld_default="$source_path/compat/windows/mslink"
3009         nm_default="dumpbin -symbols"
3010         ar_default="lib"
3011         case "$arch" in
3012         arm*)
3013             as_default="armasm"
3014             ;;
3015         esac
3016         target_os_default="win32"
3017         # Use a relative path for TMPDIR. This makes sure all the
3018         # ffconf temp files are written with a relative path, avoiding
3019         # issues with msys/win32 path conversion for MSVC parameters
3020         # such as -Fo<file> or -out:<file>.
3021         TMPDIR=.
3022     ;;
3023     icl)
3024         cc_default="icl"
3025         ld_default="xilink"
3026         nm_default="dumpbin -symbols"
3027         ar_default="xilib"
3028         target_os_default="win32"
3029         TMPDIR=.
3030     ;;
3031     gcov)
3032         add_cflags  -fprofile-arcs -ftest-coverage
3033         add_ldflags -fprofile-arcs -ftest-coverage
3034     ;;
3035     llvm-cov)
3036         add_cflags -fprofile-arcs -ftest-coverage
3037         add_ldflags --coverage
3038     ;;
3039     hardened)
3040         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3041         add_cflags   -fno-strict-overflow -fstack-protector-all
3042         add_ldflags  -Wl,-z,relro -Wl,-z,now
3043     ;;
3044     ?*)
3045         die "Unknown toolchain $toolchain"
3046     ;;
3047 esac
3048
3049 test -n "$cross_prefix" && enable cross_compile
3050
3051 if enabled cross_compile; then
3052     test -n "$arch" && test -n "$target_os" ||
3053         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3054 fi
3055
3056 ar_default="${cross_prefix}${ar_default}"
3057 cc_default="${cross_prefix}${cc_default}"
3058 objcc_default="${cross_prefix}${objcc_default}"
3059 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3060 nm_default="${cross_prefix}${nm_default}"
3061 pkg_config_default="${cross_prefix}${pkg_config_default}"
3062 ranlib="${cross_prefix}${ranlib}"
3063 strip="${cross_prefix}${strip}"
3064
3065 sysinclude_default="${sysroot}/usr/include"
3066
3067 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3068 enabled cross_compile || host_cc_default=$cc
3069 set_default host_cc
3070
3071 if ! $pkg_config --version >/dev/null 2>&1; then
3072     warn "$pkg_config not found, library detection may fail."
3073     pkg_config=false
3074 fi
3075
3076 exesuf() {
3077     case $1 in
3078         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3079     esac
3080 }
3081
3082 EXESUF=$(exesuf $target_os)
3083 HOSTEXESUF=$(exesuf $host_os)
3084
3085 # set temporary file name
3086 : ${TMPDIR:=$TEMPDIR}
3087 : ${TMPDIR:=$TMP}
3088 : ${TMPDIR:=/tmp}
3089
3090 if ! check_cmd mktemp -u XXXXXX; then
3091     # simple replacement for missing mktemp
3092     # NOT SAFE FOR GENERAL USE
3093     mktemp(){
3094         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3095         echo "$tmpname"
3096         mkdir "$tmpname"
3097     }
3098 fi
3099
3100 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3101     die "Unable to create temporary directory in $TMPDIR."
3102
3103 tmpfile(){
3104     tmp="${AVTMPDIR}/test"$2
3105     (set -C; exec > $tmp) 2> /dev/null ||
3106         die "Unable to create temporary file in $AVTMPDIR."
3107     eval $1=$tmp
3108 }
3109
3110 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3111 trap 'exit 2' INT
3112
3113 tmpfile TMPASM .asm
3114 tmpfile TMPC   .c
3115 tmpfile TMPE   $EXESUF
3116 tmpfile TMPH   .h
3117 tmpfile TMPO   .o
3118 tmpfile TMPS   .S
3119 tmpfile TMPSH  .sh
3120 tmpfile TMPV   .ver
3121
3122 unset -f mktemp
3123
3124 chmod +x $TMPE
3125
3126 # make sure we can execute files in $TMPDIR
3127 cat > $TMPSH 2>> $logfile <<EOF
3128 #! /bin/sh
3129 EOF
3130 chmod +x $TMPSH >> $logfile 2>&1
3131 if ! $TMPSH >> $logfile 2>&1; then
3132     cat <<EOF
3133 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3134 variable to another directory and make sure that it is not mounted noexec.
3135 EOF
3136     die "Sanity test failed."
3137 fi
3138
3139 armasm_flags(){
3140     for flag; do
3141         case $flag in
3142             # Filter out MSVC cl.exe options from cflags that shouldn't
3143             # be passed to gas-preprocessor
3144             -M[TD]*)                                            ;;
3145             *)                  echo $flag                      ;;
3146         esac
3147    done
3148 }
3149
3150 ccc_flags(){
3151     for flag; do
3152         case $flag in
3153             -std=c99)           echo -c99                       ;;
3154             -mcpu=*)            echo -arch ${flag#*=}           ;;
3155             -mieee)             echo -ieee                      ;;
3156             -O*|-fast)          echo $flag                      ;;
3157             -fno-math-errno)    echo -assume nomath_errno       ;;
3158             -g)                 echo -g3                        ;;
3159             -Wall)              echo -msg_enable level2         ;;
3160             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3161             -Wl,*)              echo $flag                      ;;
3162             -f*|-W*)                                            ;;
3163             *)                  echo $flag                      ;;
3164         esac
3165    done
3166 }
3167
3168 cparser_flags(){
3169     for flag; do
3170         case $flag in
3171             -Wno-switch)             echo -Wno-switch-enum ;;
3172             -Wno-format-zero-length) ;;
3173             -Wdisabled-optimization) ;;
3174             -Wno-pointer-sign)       echo -Wno-other ;;
3175             *)                       echo $flag ;;
3176         esac
3177     done
3178 }
3179
3180 msvc_common_flags(){
3181     for flag; do
3182         case $flag in
3183             # In addition to specifying certain flags under the compiler
3184             # specific filters, they must be specified here as well or else the
3185             # generic catch all at the bottom will print the original flag.
3186             -Wall)                ;;
3187             -Wextra)              ;;
3188             -std=c99)             ;;
3189             # Common flags
3190             -fomit-frame-pointer) ;;
3191             -g)                   echo -Z7 ;;
3192             -fno-math-errno)      ;;
3193             -fno-common)          ;;
3194             -fno-signed-zeros)    ;;
3195             -fPIC)                ;;
3196             -mthumb)              ;;
3197             -march=*)             ;;
3198             -lz)                  echo zlib.lib ;;
3199             -lx264)               echo libx264.lib ;;
3200             -l*)                  echo ${flag#-l}.lib ;;
3201             -L*)                  echo -libpath:${flag#-L} ;;
3202             *)                    echo $flag ;;
3203         esac
3204     done
3205 }
3206
3207 msvc_flags(){
3208     msvc_common_flags "$@"
3209     for flag; do
3210         case $flag in
3211             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3212                                        -wd4554 ;;
3213             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3214                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3215                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3216                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3217         esac
3218     done
3219 }
3220
3221 icl_flags(){
3222     msvc_common_flags "$@"
3223     for flag; do
3224         case $flag in
3225             # Despite what Intel's documentation says -Wall, which is supported
3226             # on Windows, does enable remarks so disable them here.
3227             -Wall)                echo $flag -Qdiag-disable:remark ;;
3228             -std=c99)             echo -Qstd=c99 ;;
3229         esac
3230     done
3231 }
3232
3233 pgi_flags(){
3234     for flag; do
3235         case $flag in
3236             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3237             -fomit-frame-pointer) echo -Mnoframe ;;
3238             -g)                   echo -gopt ;;
3239             *)                    echo $flag ;;
3240         esac
3241     done
3242 }
3243
3244 suncc_flags(){
3245     for flag; do
3246         case $flag in
3247             -march=*|-mcpu=*)
3248                 case "${flag#*=}" in
3249                     native)                   echo -xtarget=native       ;;
3250                     v9|niagara)               echo -xarch=sparc          ;;
3251                     ultrasparc)               echo -xarch=sparcvis       ;;
3252                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3253                     i586|pentium)             echo -xchip=pentium        ;;
3254                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3255                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3256                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3257                     pentium4*)          echo -xtarget=pentium4           ;;
3258                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3259                     *-sse3)             echo -xarch=sse3                 ;;
3260                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3261                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3262                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3263                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3264                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3265                     k8|opteron|athlon64|athlon-fx)
3266                                                echo -xarch=sse2a         ;;
3267                     athlon*)                   echo -xarch=pentium_proa  ;;
3268                 esac
3269                 ;;
3270             -std=c99)             echo -xc99              ;;
3271             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3272             -fPIC)                echo -KPIC -xcode=pic32 ;;
3273             -W*,*)                echo $flag              ;;
3274             -f*-*|-W*|-mimpure-text)                      ;;
3275             -shared)              echo -G                 ;;
3276             *)                    echo $flag              ;;
3277         esac
3278     done
3279 }
3280
3281 tms470_flags(){
3282     for flag; do
3283         case $flag in
3284             -march=*|-mcpu=*)
3285                 case "${flag#*=}" in
3286                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3287                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3288                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3289                     armv6*|arm11*)          echo -mv=6   ;;
3290                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3291                                             echo -mv=5e  ;;
3292                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3293                 esac
3294                 ;;
3295             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3296             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3297             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3298             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3299             -msoft-float)   echo --float_support=vfplib       ;;
3300             -O[0-3]|-mf=*)  echo $flag                        ;;
3301             -g)             echo -g -mn                       ;;
3302             -pds=*)         echo $flag                        ;;
3303             -D*|-I*)        echo $flag                        ;;
3304             --gcc|--abi=*)  echo $flag                        ;;
3305             -me)            echo $flag                        ;;
3306         esac
3307     done
3308 }
3309
3310 probe_cc(){
3311     pfx=$1
3312     _cc=$2
3313
3314     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3315     unset _ld_o _ldflags _ld_lib _ld_path
3316     unset _depflags _DEPCMD _DEPFLAGS
3317     _flags_filter=echo
3318
3319     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3320         _type=llvm_gcc
3321         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3322         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3323         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3324         _cflags_speed='-O3'
3325         _cflags_size='-Os'
3326     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3327         _type=gcc
3328         gcc_version=$($_cc --version | head -n1)
3329         gcc_basever=$($_cc -dumpversion)
3330         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3331         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3332         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3333         if ! $_cc -dumpversion | grep -q '^2\.'; then
3334             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3335         fi
3336         _cflags_speed='-O3'
3337         _cflags_size='-Os'
3338     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3339         _type=icc
3340         _ident=$($_cc --version | head -n1)
3341         _depflags='-MMD'
3342         _cflags_speed='-O3'
3343         _cflags_size='-Os'
3344         _cflags_noopt='-O1'
3345     elif $_cc -v 2>&1 | grep -q xlc; then
3346         _type=xlc
3347         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3348         _cflags_speed='-O5'
3349         _cflags_size='-O5 -qcompact'
3350     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3351         _type=ccc
3352         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3353         _DEPFLAGS='-M'
3354         _cflags_speed='-fast'
3355         _cflags_size='-O1'
3356         _flags_filter=ccc_flags
3357     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3358         test -d "$sysroot" || die "No valid sysroot specified."
3359         _type=armcc
3360         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3361         armcc_conf="$PWD/armcc.conf"
3362         $_cc --arm_linux_configure                 \
3363              --arm_linux_config_file="$armcc_conf" \
3364              --configure_sysroot="$sysroot"        \
3365              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3366              die "Error creating armcc configuration file."
3367         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3368         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3369         as_default="${cross_prefix}gcc"
3370         _depflags='-MMD'
3371         _cflags_speed='-O3'
3372         _cflags_size='-Os'
3373     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3374         _type=tms470
3375         _ident=$($_cc -version | head -n1 | tr -s ' ')
3376         _flags='--gcc --abi=eabi -me'
3377         _cc_e='-ppl -fe=$@'
3378         _cc_o='-fe=$@'
3379         _depflags='-ppa -ppd=$(@:.o=.d)'
3380         _cflags_speed='-O3 -mf=5'
3381         _cflags_size='-O3 -mf=2'
3382         _flags_filter=tms470_flags
3383     elif $_cc -v 2>&1 | grep -q clang; then
3384         _type=clang
3385         _ident=$($_cc --version 2>/dev/null | head -n1)
3386         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3387         _cflags_speed='-O3'
3388         _cflags_size='-Os'
3389     elif $_cc -V 2>&1 | grep -q Sun; then
3390         _type=suncc
3391         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3392         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3393         _DEPFLAGS='-xM1 -xc99'
3394         _ldflags='-std=c99'
3395         _cflags_speed='-O5'
3396         _cflags_size='-O5 -xspace'
3397         _flags_filter=suncc_flags
3398     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3399         _type=pathscale
3400         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3401         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3402         _cflags_speed='-O2'
3403         _cflags_size='-Os'
3404         _flags_filter='filter_out -Wdisabled-optimization'
3405     elif $_cc -v 2>&1 | grep -q Open64; then
3406         _type=open64
3407         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3408         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3409         _cflags_speed='-O2'
3410         _cflags_size='-Os'
3411         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3412     elif $_cc -V 2>&1 | grep -q Portland; then
3413         _type=pgi
3414         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3415         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3416         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3417         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3418         _cflags_noopt="-O1"
3419         _flags_filter=pgi_flags
3420     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3421         _type=armasm
3422         _ident=$($_cc | head -n1)
3423         # 4509: "This form of conditional instruction is deprecated"
3424         _flags="-nologo -ignore 4509"
3425         _flags_filter=armasm_flags
3426     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3427         _type=msvc
3428         _ident=$($_cc 2>&1 | head -n1)
3429         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3430         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3431         _cflags_speed="-O2"
3432         _cflags_size="-O1"
3433         _cflags_noopt="-O1"
3434         if $_cc -nologo- 2>&1 | grep -q Linker; then
3435             _ld_o='-out:$@'
3436         else
3437             _ld_o='-Fe$@'
3438         fi
3439         _cc_o='-Fo$@'
3440         _cc_e='-P -Fi$@'
3441         _flags_filter=msvc_flags
3442         _ld_lib='lib%.a'
3443         _ld_path='-libpath:'
3444         _flags='-nologo'
3445     elif $_cc 2>&1 | grep -q Intel; then
3446         _type=icl
3447         _ident=$($_cc 2>&1 | head -n1)
3448         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3449         # Not only is O3 broken on 13.x+ but it is slower on all previous
3450         # versions (tested) as well.
3451         _cflags_speed="-O2"
3452         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3453         if $_cc 2>&1 | grep -q Linker; then
3454             _ld_o='-out:$@'
3455         else
3456             _ld_o='-Fe$@'
3457         fi
3458         _cc_o='-Fo$@'
3459         _cc_e='-P'
3460         _flags_filter=icl_flags
3461         _ld_lib='lib%.a'
3462         _ld_path='-libpath:'
3463         # -Qdiag-error to make icl error when seeing certain unknown arguments
3464         _flags='-nologo -Qdiag-error:4044,10157'
3465         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3466         # with MSVC which enables it by default.
3467         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3468     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3469         # lld can emulate multiple different linkers; in ms link.exe mode,
3470         # the -? parameter gives the help output which contains an identifyable
3471         # string, while it gives an error in other modes.
3472         _type=lld-link
3473         # The link.exe mode doesn't have a switch for getting the version,
3474         # but we can force it back to gnu mode and get the version from there.
3475         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3476         _ld_o='-out:$@'
3477         _flags_filter=msvc_flags
3478         _ld_lib='lib%.a'
3479         _ld_path='-libpath:'
3480     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3481         _type=cparser
3482         _ident=$($_cc --version | head -n1)
3483         _depflags='-MMD'
3484         _cflags_speed='-O4'
3485         _cflags_size='-O2'
3486         _flags_filter=cparser_flags
3487     fi
3488
3489     eval ${pfx}_type=\$_type
3490     eval ${pfx}_ident=\$_ident
3491 }
3492
3493 set_ccvars(){
3494     eval ${1}_C=\${_cc_c-\${${1}_C}}
3495     eval ${1}_E=\${_cc_e-\${${1}_E}}
3496     eval ${1}_O=\${_cc_o-\${${1}_O}}
3497
3498     if [ -n "$_depflags" ]; then
3499         eval ${1}_DEPFLAGS=\$_depflags
3500     else
3501         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3502         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3503         eval DEP${1}FLAGS=\$_flags
3504     fi
3505 }
3506
3507 probe_cc cc "$cc"
3508 cflags_filter=$_flags_filter
3509 cflags_speed=$_cflags_speed
3510 cflags_size=$_cflags_size
3511 cflags_noopt=$_cflags_noopt
3512 add_cflags $_flags $_cflags
3513 cc_ldflags=$_ldflags
3514 set_ccvars CC
3515
3516 probe_cc hostcc "$host_cc"
3517 host_cflags_filter=$_flags_filter
3518 host_cflags_speed=$_cflags_speed
3519 add_host_cflags  $_flags $_cflags
3520 set_ccvars HOSTCC
3521
3522 test -n "$cc_type" && enable $cc_type ||
3523     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3524
3525 : ${as_default:=$cc}
3526 : ${objcc_default:=$cc}
3527 : ${dep_cc_default:=$cc}
3528 : ${ld_default:=$cc}
3529 : ${host_ld_default:=$host_cc}
3530 set_default ar as objcc dep_cc ld host_ld
3531
3532 probe_cc as "$as"
3533 asflags_filter=$_flags_filter
3534 add_asflags $_flags $_cflags
3535 set_ccvars AS
3536
3537 probe_cc objcc "$objcc"
3538 objcflags_filter=$_flags_filter
3539 add_objcflags $_flags $_cflags
3540 set_ccvars OBJC
3541
3542 probe_cc ld "$ld"
3543 ldflags_filter=$_flags_filter
3544 add_ldflags $_flags $_ldflags
3545 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3546 LD_O=${_ld_o-$LD_O}
3547 LD_LIB=${_ld_lib-$LD_LIB}
3548 LD_PATH=${_ld_path-$LD_PATH}
3549
3550 probe_cc hostld "$host_ld"
3551 host_ldflags_filter=$_flags_filter
3552 add_host_ldflags $_flags $_ldflags
3553 HOSTLD_O=${_ld_o-$HOSTLD_O}
3554
3555 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3556     probe_cc depcc "$dep_cc"
3557     CCDEP=${_DEPCMD:-$DEPCMD}
3558     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3559     DEPCCFLAGS=$_flags
3560 fi
3561
3562 if $ar 2>&1 | grep -q Microsoft; then
3563     arflags="-nologo"
3564     ar_o='-out:$@'
3565 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3566     arflags="rq"
3567     ar_o='$@'
3568 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3569     arflags='-Xany -r -c'
3570     ar_o='$@'
3571 else
3572     arflags="rc"
3573     ar_o='$@'
3574 fi
3575
3576 add_cflags $extra_cflags
3577 add_objcflags $extra_objcflags
3578 add_asflags $extra_cflags
3579
3580 if test -n "$sysroot"; then
3581     case "$cc_type" in
3582         gcc|llvm_gcc|clang)
3583             add_cppflags --sysroot="$sysroot"
3584             add_ldflags --sysroot="$sysroot"
3585         ;;
3586         tms470)
3587             add_cppflags -I"$sysinclude"
3588             add_ldflags  --sysroot="$sysroot"
3589         ;;
3590     esac
3591 fi
3592
3593 if test "$cpu" = host; then
3594     enabled cross_compile &&
3595         die "--cpu=host makes no sense when cross-compiling."
3596
3597     case "$cc_type" in
3598         gcc|llvm_gcc)
3599             check_native(){
3600                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3601                 sed -n "/cc1.*$1=/{
3602                             s/.*$1=\\([^ ]*\\).*/\\1/
3603                             p
3604                             q
3605                         }" $TMPE
3606             }
3607             cpu=$(check_native -march || check_native -mcpu)
3608         ;;
3609     esac
3610
3611     test "${cpu:-host}" = host &&
3612         die "--cpu=host not supported with compiler $cc"
3613 fi
3614
3615 # Deal with common $arch aliases
3616 case "$arch" in
3617     aarch64|arm64)
3618         arch="aarch64"
3619     ;;
3620     arm*)
3621         arch="arm"
3622     ;;
3623     mips*|IP*)
3624         case "$arch" in
3625         *el)
3626             add_cppflags -EL
3627             add_ldflags -EL
3628         ;;
3629         *eb)
3630             add_cppflags -EB
3631             add_ldflags -EB
3632         ;;
3633         esac
3634         arch="mips"
3635     ;;
3636     parisc*|hppa*)
3637         arch="parisc"
3638     ;;
3639     "Power Macintosh"|ppc*|powerpc*)
3640         arch="ppc"
3641     ;;
3642     s390|s390x)
3643         arch="s390"
3644     ;;
3645     sh4|sh)
3646         arch="sh4"
3647     ;;
3648     sun4u|sparc*)
3649         arch="sparc"
3650     ;;
3651     tilegx|tile-gx)
3652         arch="tilegx"
3653     ;;
3654     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3655         arch="x86"
3656     ;;
3657 esac
3658
3659 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3660 enable $arch
3661
3662 # Add processor-specific flags
3663 if enabled aarch64; then
3664
3665     case $cpu in
3666         armv*)
3667             cpuflags="-march=$cpu"
3668         ;;
3669         *)
3670             cpuflags="-mcpu=$cpu"
3671         ;;
3672     esac
3673
3674 elif enabled alpha; then
3675
3676     cpuflags="-mcpu=$cpu"
3677
3678 elif enabled arm; then
3679
3680     check_arm_arch() {
3681         check_cpp_condition stddef.h \
3682             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3683             $cpuflags
3684     }
3685
3686     probe_arm_arch() {
3687         if   check_arm_arch 4;        then echo armv4
3688         elif check_arm_arch 4T;       then echo armv4t
3689         elif check_arm_arch 5;        then echo armv5
3690         elif check_arm_arch 5E;       then echo armv5e
3691         elif check_arm_arch 5T;       then echo armv5t
3692         elif check_arm_arch 5TE;      then echo armv5te
3693         elif check_arm_arch 5TEJ;     then echo armv5te
3694         elif check_arm_arch 6;        then echo armv6
3695         elif check_arm_arch 6J;       then echo armv6j
3696         elif check_arm_arch 6K;       then echo armv6k
3697         elif check_arm_arch 6Z;       then echo armv6z
3698         elif check_arm_arch 6ZK;      then echo armv6zk
3699         elif check_arm_arch 6T2;      then echo armv6t2
3700         elif check_arm_arch 7;        then echo armv7
3701         elif check_arm_arch 7A  7_A;  then echo armv7-a
3702         elif check_arm_arch 7S;       then echo armv7-a
3703         elif check_arm_arch 7R  7_R;  then echo armv7-r
3704         elif check_arm_arch 7M  7_M;  then echo armv7-m
3705         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3706         elif check_arm_arch 8A  8_A;  then echo armv8-a
3707         fi
3708     }
3709
3710     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3711
3712     case $cpu in
3713         armv*)
3714             cpuflags="-march=$cpu"
3715             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3716         ;;
3717         *)
3718             cpuflags="-mcpu=$cpu"
3719             case $cpu in
3720                 cortex-a*)                               subarch=armv7a  ;;
3721                 cortex-r*)                               subarch=armv7r  ;;
3722                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3723                 arm11*)                                  subarch=armv6   ;;
3724                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3725                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3726                 *)                             subarch=$(probe_arm_arch) ;;
3727             esac
3728         ;;
3729     esac
3730
3731     case "$subarch" in
3732         armv5t*)    enable fast_clz                ;;
3733         armv[6-8]*) enable fast_clz fast_unaligned ;;
3734     esac
3735
3736 elif enabled avr32; then
3737
3738     case $cpu in
3739         ap7[02]0[0-2])
3740             subarch="avr32_ap"
3741             cpuflags="-mpart=$cpu"
3742         ;;
3743         ap)
3744             subarch="avr32_ap"
3745             cpuflags="-march=$cpu"
3746         ;;
3747         uc3[ab]*)
3748             subarch="avr32_uc"
3749             cpuflags="-mcpu=$cpu"
3750         ;;
3751         uc)
3752             subarch="avr32_uc"
3753             cpuflags="-march=$cpu"
3754         ;;
3755     esac
3756
3757 elif enabled bfin; then
3758
3759     cpuflags="-mcpu=$cpu"
3760
3761 elif enabled mips; then
3762
3763     cpuflags="-march=$cpu"
3764
3765 elif enabled ppc; then
3766
3767     disable ldbrx
3768
3769     case $(tolower $cpu) in
3770         601|ppc601|powerpc601)
3771             cpuflags="-mcpu=601"
3772             disable altivec
3773         ;;
3774         603*|ppc603*|powerpc603*)
3775             cpuflags="-mcpu=603"
3776             disable altivec
3777         ;;
3778         604*|ppc604*|powerpc604*)
3779             cpuflags="-mcpu=604"
3780             disable altivec
3781         ;;
3782         g3|75*|ppc75*|powerpc75*)
3783             cpuflags="-mcpu=750"
3784             disable altivec
3785         ;;
3786         g4|745*|ppc745*|powerpc745*)
3787             cpuflags="-mcpu=7450"
3788             disable vsx
3789         ;;
3790         74*|ppc74*|powerpc74*)
3791             cpuflags="-mcpu=7400"
3792             disable vsx
3793         ;;
3794         g5|970|ppc970|powerpc970)
3795             cpuflags="-mcpu=970"
3796             disable vsx
3797         ;;
3798         power[3-6]*)
3799             cpuflags="-mcpu=$cpu"
3800             disable vsx
3801         ;;
3802         power[7-8]*)
3803             cpuflags="-mcpu=$cpu"
3804             enable ldbrx
3805         ;;
3806         cell)
3807             cpuflags="-mcpu=cell"
3808             enable ldbrx
3809             disable vsx
3810         ;;
3811         e500mc)
3812             cpuflags="-mcpu=e500mc"
3813             disable altivec
3814         ;;
3815         e500v2)
3816             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3817             disable altivec
3818             disable dcbzl
3819         ;;
3820         e500)
3821             cpuflags="-mcpu=8540 -mhard-float"
3822             disable altivec
3823             disable dcbzl
3824         ;;
3825     esac
3826
3827 elif enabled sparc; then
3828
3829     case $cpu in
3830         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3831             cpuflags="-mcpu=$cpu"
3832         ;;
3833         ultrasparc*|niagara[234])
3834             cpuflags="-mcpu=$cpu"
3835         ;;
3836     esac
3837
3838 elif enabled x86; then
3839
3840     case $cpu in
3841         i[345]86|pentium)
3842             cpuflags="-march=$cpu"
3843             disable i686
3844             disable mmx
3845         ;;
3846         # targets that do NOT support nopl and conditional mov (cmov)
3847         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3848             cpuflags="-march=$cpu"
3849             disable i686
3850         ;;
3851         # targets that do support nopl and conditional mov (cmov)
3852         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3853             cpuflags="-march=$cpu"
3854             enable i686
3855             enable fast_cmov
3856         ;;
3857         # targets that do support conditional mov but on which it's slow
3858         pentium4|pentium4m|prescott|nocona)
3859             cpuflags="-march=$cpu"
3860             enable i686
3861             disable fast_cmov
3862         ;;
3863     esac
3864
3865 fi
3866
3867 if [ "$cpu" != generic ]; then
3868     add_cflags  $cpuflags
3869     add_asflags $cpuflags
3870     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3871 fi
3872
3873 # compiler sanity check
3874 check_exec <<EOF
3875 int main(void){ return 0; }
3876 EOF
3877 if test "$?" != 0; then
3878     echo "$cc is unable to create an executable file."
3879     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3880         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3881         echo "Only do this if you know what cross compiling means."
3882     fi
3883     die "C compiler test failed."
3884 fi
3885
3886 add_cppflags -D_ISOC99_SOURCE
3887
3888 # some compilers silently accept -std=c11, so we also need to check that the
3889 # version macro is defined properly
3890 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3891     add_cflags -std=c11 ||
3892     check_cflags -std=c99
3893
3894 check_cppflags -D_FILE_OFFSET_BITS=64
3895 check_cppflags -D_LARGEFILE_SOURCE
3896
3897 add_host_cppflags -D_ISOC99_SOURCE
3898 check_host_cflags -std=c99
3899 check_host_cflags -Wall
3900 check_host_cflags $host_cflags_speed
3901
3902 check_64bit(){
3903     arch32=$1
3904     arch64=$2
3905     expr=$3
3906     check_code cc "" "int test[2*($expr) - 1]" &&
3907         subarch=$arch64 || subarch=$arch32
3908 }
3909
3910 case "$arch" in
3911     aarch64|alpha|ia64)
3912         spic=$shared
3913     ;;
3914     mips)
3915         check_64bit mips mips64 '_MIPS_SIM > 1'
3916         spic=$shared
3917     ;;
3918     parisc)
3919         check_64bit parisc parisc64 'sizeof(void *) > 4'
3920         spic=$shared
3921     ;;
3922     ppc)
3923         check_64bit ppc ppc64 'sizeof(void *) > 4'
3924         spic=$shared
3925     ;;
3926     s390)
3927         check_64bit s390 s390x 'sizeof(void *) > 4'
3928         spic=$shared
3929     ;;
3930     sparc)
3931         check_64bit sparc sparc64 'sizeof(void *) > 4'
3932         spic=$shared
3933     ;;
3934     x86)
3935         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3936         if test "$subarch" = "x86_64"; then
3937             spic=$shared
3938         fi
3939     ;;
3940 esac
3941
3942 enable $subarch
3943 enabled spic && enable_weak pic
3944
3945 enabled x86_64 && objformat=elf64 || objformat="elf32"
3946
3947 # OS specific
3948 case $target_os in
3949     aix)
3950         SHFLAGS=-shared
3951         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3952         enabled shared && add_ldflags -Wl,-brtl
3953         ;;
3954     android)
3955         disable symver
3956         enable section_data_rel_ro
3957         SLIB_INSTALL_NAME='$(SLIBNAME)'
3958         SLIB_INSTALL_LINKS=
3959         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3960         ;;
3961     haiku)
3962         prefix_default="/boot/common"
3963         network_extralibs="-lnetwork"
3964         host_extralibs=
3965         ;;
3966     sunos)
3967         SHFLAGS='-shared -Wl,-h,$$(@F)'
3968         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3969         network_extralibs="-lsocket -lnsl"
3970         # When using suncc to build, the Solaris linker will mark
3971         # an executable with each instruction set encountered by
3972         # the Solaris assembler.  As our libraries contain their own
3973         # guards for processor-specific code, instead suppress
3974         # generation of the HWCAPS ELF section on Solaris x86 only.
3975         enabled_all suncc x86 &&
3976             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3977             add_ldflags -Wl,-M,mapfile
3978         nm_default='nm -P -g'
3979         version_script='-M'
3980         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3981         ;;
3982     netbsd)
3983         disable symver
3984         oss_indev_extralibs="-lossaudio"
3985         oss_outdev_extralibs="-lossaudio"
3986         ;;
3987     openbsd|bitrig)
3988         disable symver
3989         SHFLAGS='-shared'
3990         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3991         SLIB_INSTALL_LINKS=
3992         oss_indev_extralibs="-lossaudio"
3993         oss_outdev_extralibs="-lossaudio"
3994         ;;
3995     dragonfly)
3996         disable symver
3997         ;;
3998     freebsd)
3999         ;;
4000     bsd/os)
4001         add_extralibs -lpoll -lgnugetopt
4002         ;;
4003     darwin)
4004         enabled ppc && add_asflags -force_cpusubtype_ALL
4005         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4006         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4007         add_ldflags -Wl,-dynamic,-search_paths_first
4008         check_cflags -Werror=partial-availability
4009         SLIBSUF=".dylib"
4010         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4011         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4012         enabled x86_64 && objformat="macho64" || objformat="macho32"
4013         enabled_any pic shared ||
4014             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4015         check_header dispatch/dispatch.h &&
4016             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4017         if test -n "$sysroot"; then
4018             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4019             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
4020         fi
4021         ;;
4022     msys*)
4023         die "Native MSYS builds are discouraged, please use the MINGW environment."
4024         ;;
4025     mingw32*|mingw64*)
4026         target_os=mingw32
4027         LIBTARGET=i386
4028         if enabled x86_64; then
4029             LIBTARGET="i386:x86-64"
4030         fi
4031         if enabled shared; then
4032             # Cannot build both shared and static libs when using dllexport.
4033             disable static
4034         fi
4035         check_ldflags -Wl,--nxcompat
4036         check_ldflags -Wl,--dynamicbase
4037         shlibdir_default="$bindir_default"
4038         SLIBPREF=""
4039         SLIBSUF=".dll"
4040         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4041         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4042         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4043         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4044         SLIB_INSTALL_LINKS=
4045         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4046         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4047         SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4048         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4049         enabled x86_64 && objformat="win64" || objformat="win32"
4050         dlltool="${cross_prefix}dlltool"
4051         ranlib=:
4052         enable dos_paths
4053         ;;
4054     win32|win64)
4055         disable symver
4056         if enabled shared; then
4057             # Link to the import library instead of the normal static library
4058             # for shared libs.
4059             LD_LIB='%.lib'
4060             # Cannot build both shared and static libs with MSVC or icl.
4061             disable static
4062         fi
4063         shlibdir_default="$bindir_default"
4064         SLIBPREF=""
4065         SLIBSUF=".dll"
4066         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4067         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4068         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4069         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4070         SLIB_INSTALL_LINKS=
4071         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4072         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4073         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4074         enabled x86_64 && objformat="win64" || objformat="win32"
4075         ranlib=:
4076         enable dos_paths
4077         ;;
4078     cygwin*)
4079         target_os=cygwin
4080         shlibdir_default="$bindir_default"
4081         SLIBPREF="cyg"
4082         SLIBSUF=".dll"
4083         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4084         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4085         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4086         SLIB_INSTALL_LINKS=
4087         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4088         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4089         enabled x86_64 && objformat="win64" || objformat="win32"
4090         enable dos_paths
4091         ;;
4092     *-dos|freedos|opendos)
4093         network_extralibs="-lsocket"
4094         objformat="coff"
4095         enable dos_paths
4096         add_cppflags -U__STRICT_ANSI__
4097         ;;
4098     linux)
4099         enable dv1394
4100         enable section_data_rel_ro
4101         ;;
4102     irix*)
4103         target_os=irix
4104         ranlib="echo ignoring ranlib"
4105         ;;
4106     os/2*)
4107         ln_s="cp -f"
4108         objformat="aout"
4109         add_cppflags -D_GNU_SOURCE
4110         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4111         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4112         LIBSUF="_s.a"
4113         SLIBPREF=""
4114         SLIBSUF=".dll"
4115         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4116         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4117         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4118             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4119             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4120             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4121             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4122         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4123             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4124         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4125         enable dos_paths
4126         ;;
4127     gnu/kfreebsd)
4128         add_cppflags -D_BSD_SOURCE
4129         ;;
4130     gnu)
4131         ;;
4132     qnx)
4133         add_cppflags -D_QNX_SOURCE
4134         network_extralibs="-lsocket"
4135         ;;
4136     symbian)
4137         SLIBSUF=".dll"
4138         enable dos_paths
4139         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4140         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4141         add_ldflags -Wl,--target1-abs,--no-undefined \
4142                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4143                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4144         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4145                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4146                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4147         ;;
4148     osf1)
4149         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4150         ;;
4151     minix)
4152         ;;
4153     none)
4154         ;;
4155     *)
4156         die "Unknown OS '$target_os'."
4157         ;;
4158 esac
4159
4160 # determine libc flavour
4161
4162 probe_libc(){
4163     pfx=$1
4164     pfx_no_=${pfx%_}
4165     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4166     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4167         eval ${pfx}libc_type=uclibc
4168         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4169     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4170         eval ${pfx}libc_type=glibc
4171         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4172     # MinGW headers can be installed on Cygwin, so check for newlib first.
4173     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4174         eval ${pfx}libc_type=newlib
4175         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4176     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4177     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4178         eval ${pfx}libc_type=mingw64
4179         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4180         eval test \$${pfx_no_}cc_type = "gcc" &&
4181             add_${pfx}cppflags -D__printf__=__gnu_printf__
4182     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4183          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4184         eval ${pfx}libc_type=mingw32
4185         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4186             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4187             die "ERROR: MinGW32 runtime version must be >= 3.15."
4188         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4189         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4190             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4191         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4192             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4193         eval test \$${pfx_no_}cc_type = "gcc" &&
4194             add_${pfx}cppflags -D__printf__=__gnu_printf__
4195     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4196         eval ${pfx}libc_type=msvcrt
4197         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4198             if [ "$pfx" = host_ ]; then
4199                 add_host_cppflags -Dsnprintf=_snprintf
4200             else
4201                 add_compat strtod.o strtod=avpriv_strtod
4202                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4203                                              _snprintf=avpriv_snprintf  \
4204                                              vsnprintf=avpriv_vsnprintf
4205             fi
4206         fi
4207         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4208         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4209         # 0x601 by default unless something else is set by the user.
4210         # This can easily lead to us detecting functions only present
4211         # in such new versions and producing binaries requiring windows 7.0.
4212         # Therefore explicitly set the default to XP unless the user has
4213         # set something else on the command line.
4214         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4215         # family. For these cases, configure is free to use any functions
4216         # found in the SDK headers by default. (Alternatively, we could force
4217         # _WIN32_WINNT to 0x0602 in that case.)
4218         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4219             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4220 #ifdef WINAPI_FAMILY
4221 #include <winapifamily.h>
4222 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4223 #error not desktop
4224 #endif
4225 #endif
4226 EOF
4227         if [ "$pfx" = "" ]; then
4228             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4229         fi
4230     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4231         eval ${pfx}libc_type=klibc
4232     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4233         eval ${pfx}libc_type=bionic
4234     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4235         eval ${pfx}libc_type=solaris
4236         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4237     else
4238         eval ${pfx}libc_type=default
4239         add_${pfx}cppflags -D_DEFAULT_SOURCE
4240     fi
4241 }
4242
4243 probe_libc
4244 test -n "$libc_type" && enable libc_$libc_type
4245 probe_libc host_
4246 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4247
4248 # hacks for compiler/libc/os combinations
4249
4250 case $libc_type in
4251     bionic)
4252         add_compat strtod.o strtod=avpriv_strtod
4253         ;;
4254     glibc)
4255         if enabled tms470; then
4256             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4257             add_cppflags -D__USER_LABEL_PREFIX__=
4258             add_cppflags -D__builtin_memset=memset
4259             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4260             add_cflags   -pds=48    # incompatible redefinition of macro
4261         elif enabled ccc; then
4262             add_ldflags -Wl,-z,now  # calls to libots crash without this
4263         fi
4264         ;;
4265 esac
4266
4267 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4268     add_cppflags '-I\$(SRC_PATH)/compat/float'
4269
4270 esc(){
4271     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4272 }
4273
4274 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4275
4276 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4277
4278 set_default $PATHS_LIST
4279 set_default nm
4280
4281 # we need to build at least one lib type
4282 if ! enabled_any static shared; then
4283     cat <<EOF
4284 At least one library type must be built.
4285 Specify --enable-static to build the static libraries or --enable-shared to
4286 build the shared libraries as well. To only build the shared libraries specify
4287 --disable-static in addition to --enable-shared.
4288 EOF
4289     exit 1
4290 fi
4291
4292 disabled optimizations || check_cflags -fomit-frame-pointer
4293
4294 enable_weak_pic() {
4295     disabled pic && return
4296     enable pic
4297     add_cppflags -DPIC
4298     case "$target_os" in
4299     mingw*|cygwin*)
4300         ;;
4301     *)
4302         add_cflags -fPIC
4303         ;;
4304     esac
4305     add_asflags  -fPIC
4306 }
4307
4308 enabled pic && enable_weak_pic
4309
4310 check_cc <<EOF || die "Symbol mangling check failed."
4311 int ff_extern;
4312 EOF
4313 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4314 extern_prefix=${sym%%ff_extern*}
4315
4316 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4317
4318 _restrict=
4319 for restrict_keyword in restrict __restrict__ __restrict; do
4320     check_cc <<EOF && _restrict=$restrict_keyword && break
4321 void foo(char * $restrict_keyword p);
4322 EOF
4323 done
4324
4325 check_cc <<EOF && enable pragma_deprecated
4326 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4327 EOF
4328
4329 check_cc <<EOF && enable attribute_packed
4330 struct { int x; } __attribute__((packed)) x;
4331 EOF
4332
4333 check_cc <<EOF && enable attribute_may_alias
4334 union { int x; } __attribute__((may_alias)) x;
4335 EOF
4336
4337 check_cc <<EOF || die "endian test failed"
4338 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4339 EOF
4340 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4341
4342 check_gas() {
4343     log "check_gas using '$as' as AS"
4344     # :vararg is used on aarch64, arm and ppc altivec
4345     check_as <<EOF || return 1
4346 .macro m n, y:vararg=0
4347 \n: .int \y
4348 .endm
4349 m x
4350 EOF
4351     # .altmacro is only used in arm asm
4352     ! enabled arm || check_as <<EOF || return 1
4353 .altmacro
4354 EOF
4355     enable gnu_as
4356     return 0
4357 }
4358
4359 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4360     nogas=:
4361     enabled_any arm aarch64 && nogas=die
4362     enabled_all ppc altivec && nogas=warn
4363     as_noop=-v
4364
4365     case $as_type in
4366         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4367         gcc)  gaspp_as_type=gas ;;
4368         *)    gaspp_as_type=$as_type ;;
4369     esac
4370
4371     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4372
4373     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4374         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4375
4376     if ! check_gas ; then
4377         as=${gas:=$as}
4378         check_gas || \
4379             $nogas "GNU assembler not found, install/update gas-preprocessor"
4380     fi
4381
4382     check_as <<EOF && enable as_func
4383 .func test
4384 .endfunc
4385 EOF
4386 fi
4387
4388 check_inline_asm inline_asm_labels '"1:\n"'
4389
4390 if enabled aarch64; then
4391     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4392     # internal assembler in clang 3.3 does not support this instruction
4393     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4394     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4395
4396     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4397
4398 elif enabled alpha; then
4399
4400     check_cflags -mieee
4401
4402 elif enabled arm; then
4403
4404     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4405     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4406     enabled thumb && check_cflags -mthumb || check_cflags -marm
4407
4408     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4409         enable vfp_args
4410     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4411         enable vfp_args
4412     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4413         case "${cross_prefix:-$cc}" in
4414             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4415             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4416 __asm__ (".eabi_attribute 28, 1");
4417 int main(void) { return 0; }
4418 EOF
4419         esac
4420         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4421     fi
4422
4423     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4424     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4425     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4426     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4427     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4428     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4429
4430     [ $target_os = linux ] || [ $target_os = android ] ||
4431         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4432             $ARCH_EXT_LIST_ARM
4433
4434     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4435
4436     check_as <<EOF && enable as_arch_directive
4437 .arch armv7-a
4438 EOF
4439     check_as <<EOF && enable as_fpu_directive
4440 .fpu neon
4441 EOF
4442
4443     # llvm's integrated assembler supports .object_arch from llvm 3.5
4444     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4445         check_as <<EOF && enable as_object_arch
4446 .object_arch armv4
4447 EOF
4448
4449     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4450
4451 elif enabled mips; then
4452
4453     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4454
4455     # make sure that only an instruction set is enabled
4456     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4457
4458     if enabled mips64; then
4459         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4460             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4461                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4462     else
4463         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4464             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4465                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4466     fi
4467
4468 elif enabled parisc; then
4469
4470     if enabled gcc; then
4471         case $($cc -dumpversion) in
4472             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4473         esac
4474     fi
4475
4476 elif enabled ppc; then
4477
4478     enable local_aligned_8 local_aligned_16 local_aligned_32
4479
4480     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4481     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4482     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4483     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4484
4485     if enabled altivec; then
4486         check_cflags -maltivec -mabi=altivec
4487
4488         # check if our compiler supports Motorola AltiVec C API
4489         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4490                                  vector signed int v2 = (vector signed int) { 1 };
4491                                  v1 = vec_add(v1, v2);" ||
4492             disable altivec
4493
4494         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4495     fi
4496
4497     if enabled vsx; then
4498         check_cflags -mvsx &&
4499         check_code cc altivec.h "int v[4] = { 0 };
4500                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4501             disable vsx
4502     fi
4503
4504     if enabled power8; then
4505         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4506     fi
4507
4508 elif enabled x86; then
4509
4510     check_builtin rdtsc    intrin.h   "__rdtsc()"
4511     check_builtin mm_empty mmintrin.h "_mm_empty()"
4512
4513     enable local_aligned_8 local_aligned_16 local_aligned_32
4514
4515     # check whether EBP is available on x86
4516     # As 'i' is stored on the stack, this program will crash
4517     # if the base pointer is used to access it because the
4518     # base pointer is cleared in the inline assembly code.
4519     check_exec_crash <<EOF && enable ebp_available
4520 volatile int i=0;
4521 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4522 return i;
4523 EOF
4524
4525     # check whether EBX is available on x86
4526     check_inline_asm ebx_available '""::"b"(0)' &&
4527         check_inline_asm ebx_available '"":::"%ebx"'
4528
4529     # check whether xmm clobbers are supported
4530     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4531
4532     # check whether binutils is new enough to compile SSSE3/MMXEXT
4533     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4534     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4535
4536     probe_x86asm(){
4537         x86asmexe_probe=$1
4538         if check_cmd $x86asmexe_probe -v; then
4539             x86asmexe=$x86asmexe_probe
4540             x86asm_type=nasm
4541             x86asm_debug="-g -F dwarf"
4542             X86ASMDEP=
4543             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4544         elif check_cmd $x86asmexe_probe --version; then
4545             x86asmexe=$x86asmexe_probe
4546             x86asm_type=yasm
4547             x86asm_debug="-g dwarf2"
4548             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4549             X86ASM_DEPFLAGS=
4550         fi
4551         check_x86asm "movbe ecx, [5]" && enable x86asm
4552     }
4553
4554     if ! disabled_any asm mmx x86asm; then
4555         disable x86asm
4556         for program in $x86asmexe nasm yasm; do
4557             probe_x86asm $program && break
4558         done
4559         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4560         X86ASMFLAGS="-f $objformat"
4561         enabled pic               && append X86ASMFLAGS "-DPIC"
4562         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4563         case "$objformat" in
4564             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4565         esac
4566
4567         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4568         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4569         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4570         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4571         check_x86asm "CPU amdnop"                      || disable cpunop
4572     fi
4573
4574     case "$cpu" in
4575         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4576             disable fast_clz
4577         ;;
4578     esac
4579
4580 fi
4581
4582 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4583
4584 check_ldflags -Wl,--as-needed
4585
4586 if ! disabled network; then
4587     check_func getaddrinfo $network_extralibs
4588     check_func inet_aton $network_extralibs
4589
4590     check_type netdb.h "struct addrinfo"
4591     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4592     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4593     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4594     check_type poll.h "struct pollfd"
4595     check_type netinet/sctp.h "struct sctp_event_subscribe"
4596     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4597     check_type netinet/in.h "struct sockaddr_in6"
4598     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4599     check_type "sys/types.h sys/socket.h" socklen_t
4600
4601     # Prefer arpa/inet.h over winsock2
4602     if check_header arpa/inet.h ; then
4603         check_func closesocket
4604     elif check_header winsock2.h ; then
4605         check_func_headers winsock2.h closesocket -lws2 &&
4606             network_extralibs="-lws2" ||
4607         { check_func_headers winsock2.h closesocket -lws2_32 &&
4608             network_extralibs="-lws2_32"; } || disable winsock2_h network
4609         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4610
4611         check_type ws2tcpip.h socklen_t
4612         check_type ws2tcpip.h "struct addrinfo"
4613         check_type ws2tcpip.h "struct group_source_req"
4614         check_type ws2tcpip.h "struct ip_mreq_source"
4615         check_type ws2tcpip.h "struct ipv6_mreq"
4616         check_type winsock2.h "struct pollfd"
4617         check_struct winsock2.h "struct sockaddr" sa_len
4618         check_type ws2tcpip.h "struct sockaddr_in6"
4619         check_type ws2tcpip.h "struct sockaddr_storage"
4620     else
4621         disable network
4622     fi
4623 fi
4624
4625 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4626 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4627 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4628 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4629
4630 case "$custom_allocator" in
4631     jemalloc)
4632         # jemalloc by default does not use a prefix
4633         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4634     ;;
4635     tcmalloc)
4636         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4637         malloc_prefix=tc_
4638     ;;
4639 esac
4640
4641 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4642 check_func  ${malloc_prefix}memalign            && enable memalign
4643 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4644
4645 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4646     { check_lib clock_gettime time.h clock_gettime ||
4647       check_lib clock_gettime time.h clock_gettime -lrt; }
4648
4649 check_func  fcntl
4650 check_func  fork
4651 check_func  gethrtime
4652 check_func  getopt
4653 check_func  getrusage
4654 check_func  gettimeofday
4655 check_func  gmtime_r
4656 check_func  isatty
4657 check_func  localtime_r
4658 check_func  mach_absolute_time
4659 check_func  mkstemp
4660 check_func  mmap
4661 check_func  mprotect
4662 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4663 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4664 check_func  sched_getaffinity
4665 check_func  setrlimit
4666 check_func  strerror_r
4667 check_func  sysconf
4668 check_func  sysctl
4669 check_func  usleep
4670
4671 check_func_headers io.h setmode
4672 check_func_headers stdlib.h getenv
4673
4674 check_func_headers windows.h GetProcessAffinityMask
4675 check_func_headers windows.h GetProcessTimes
4676 check_func_headers windows.h GetSystemTimeAsFileTime
4677 check_func_headers windows.h LoadLibrary
4678 check_func_headers windows.h MapViewOfFile
4679 check_func_headers windows.h SetConsoleTextAttribute
4680 check_func_headers windows.h Sleep
4681 check_func_headers windows.h VirtualAlloc
4682 check_struct windows.h "CONDITION_VARIABLE" Ptr
4683
4684 check_header d3d11.h
4685 check_header direct.h
4686 check_header dlfcn.h
4687 check_header dxgidebug.h
4688 check_header dxva.h
4689 check_header dxva2api.h
4690 check_header io.h
4691 check_header mach/mach_time.h
4692 check_header malloc.h
4693 check_header poll.h
4694 check_header sys/mman.h
4695 check_header sys/param.h
4696 check_header sys/resource.h
4697 check_header sys/select.h
4698 check_header sys/time.h
4699 check_header sys/un.h
4700 check_header unistd.h
4701 check_header valgrind/valgrind.h
4702 check_header VideoDecodeAcceleration/VDADecoder.h
4703 check_header windows.h
4704
4705 # it seems there are versions of clang in some distros that try to use the
4706 # gcc headers, which explodes for stdatomic
4707 # so we also check that atomics actually work here
4708 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4709
4710 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4711 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4712 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4713 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4714
4715 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4716
4717 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4718 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4719 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4720
4721 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4722 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4723 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4724
4725 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4726 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4727 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4728 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4729 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4730 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4731 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4732 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4733 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4734
4735 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4736
4737 if ! disabled w32threads && ! enabled pthreads; then
4738     check_lib w32threads "windows.h process.h" _beginthreadex
4739 fi
4740
4741 # check for some common methods of building with pthread support
4742 # do this before the optional library checks as some of them require pthreads
4743 if ! disabled pthreads && ! enabled w32threads; then
4744     if check_lib pthreads pthread.h pthread_join -pthread; then
4745         add_cflags -pthread
4746     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4747         add_cflags -pthreads
4748     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4749         :
4750     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4751         :
4752     elif check_func pthread_join; then
4753         enable pthreads
4754     fi
4755 fi
4756
4757 enabled pthreads &&
4758     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4759
4760 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4761 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4762
4763 # On some systems dynamic loading requires no extra linker flags
4764 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4765
4766 check_lib libm math.h sin -lm
4767
4768 atan2f_args=2
4769 ldexpf_args=2
4770 powf_args=2
4771
4772 for func in $MATH_FUNCS; do
4773     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4774 done
4775
4776 # these are off by default, so fail if requested and not available
4777 enabled avisynth          && require_header avisynth/avisynth_c.h
4778 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4779 enabled cuda              && require cuda cuda.h cuInit -lcuda
4780 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4781 enabled frei0r            && require_header frei0r.h
4782 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4783 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4784 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4785 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4786 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4787 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4788 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4789 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4790 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4791                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4792                                done || die "ERROR: libgsm not found"; }
4793 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4794 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4795 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4796 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4797 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4798 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4799 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4800 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4801 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4802 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4803 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4804                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4805 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4806 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4807 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4808 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4809 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4810 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4811 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4812 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4813 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4814 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4815 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4816 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4817                              { enabled libvpx_vp8_decoder &&
4818                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4819                                enabled libvpx_vp8_encoder &&
4820                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4821                                enabled libvpx_vp9_decoder &&
4822                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4823                                enabled libvpx_vp9_encoder &&
4824                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx