configure 87.1 KB
Newer Older
1
#!/bin/sh
2
#
3 4
# FFmpeg configure script
#
Diego Biurrun's avatar
Diego Biurrun committed
5 6 7
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
8
#
9

10
# Prevent locale nonsense from breaking basic text processing.
11 12
LC_ALL=C
export LC_ALL
13

14
# make sure we are running under a compatible shell
15 16 17
# try to make this part work with most shells

try_exec(){
18
    echo "Trying shell $1"
19
    type "$1" > /dev/null 2>&1 && exec "$@"
20 21
}

Måns Rullgård's avatar
Måns Rullgård committed
22
unset foo
23
(: ${foo%%bar}) 2> /dev/null
24 25
E1="$?"

26
(: ${foo?}) 2> /dev/null
27 28 29 30
E2="$?"

if test "$E1" != 0 || test "$E2" = 0; then
    echo "Broken shell detected.  Trying alternatives."
31 32 33 34 35 36 37 38 39 40 41 42
    export FF_CONF_EXEC
    if test "0$FF_CONF_EXEC" -lt 1; then
        FF_CONF_EXEC=1
        try_exec bash "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 2; then
        FF_CONF_EXEC=2
        try_exec ksh "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 3; then
        FF_CONF_EXEC=3
        try_exec /usr/xpg4/bin/sh "$0" "$@"
43 44
    fi
    echo "No compatible shell script interpreter found."
Diego Biurrun's avatar
typo  
Diego Biurrun committed
45
    echo "This configure script requires a POSIX-compatible shell"
46
    echo "such as bash or ksh."
Diego Biurrun's avatar
Diego Biurrun committed
47 48 49
    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
    echo "Instead, install a working POSIX-compatible shell."
    echo "Disabling this configure test will create a broken FFmpeg."
50 51 52 53
    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
        echo "This bash version ($BASH_VERSION) is broken on your platform."
        echo "Upgrade to a later version if available."
    fi
54 55 56
    exit 1
fi

57
show_help(){
58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85
cat <<EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]

Standard options:
  --help                   print this message
  --logfile=FILE           log tests and output to FILE [config.err]
  --disable-logging        do not log configure debug information
  --prefix=PREFIX          install in PREFIX [$prefix]
  --bindir=DIR             install binaries in DIR [PREFIX/bin]
  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  --libdir=DIR             install libs in DIR [PREFIX/lib]
  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  --incdir=DIR             install includes in DIR [PREFIX/include]
  --mandir=DIR             install man page in DIR [PREFIX/share/man]

Configuration options:
  --disable-static         do not build static libraries [no]
  --enable-shared          build shared libraries [no]
  --enable-gpl             allow use of GPL code, the resulting libs
                           and binaries will be under GPL [no]
  --enable-version3        upgrade (L)GPL to version 3 [no]
  --enable-nonfree         allow use of nonfree code, the resulting libs
                           and binaries will be unredistributable [no]
  --disable-doc            do not build documentation
  --disable-ffmpeg         disable ffmpeg build
  --disable-ffplay         disable ffplay build
  --disable-ffserver       disable ffserver build
86 87 88 89
  --disable-avdevice       disable libavdevice build
  --disable-avcodec        disable libavcodec build
  --disable-avformat       disable libavformat build
  --disable-swscale        disable libswscale build
90 91 92 93 94 95 96 97 98 99 100 101 102 103 104
  --enable-postproc        enable GPLed postprocessing support [no]
  --enable-avfilter        video filter support [no]
  --enable-avfilter-lavf   video filters dependent on avformat [no]
  --enable-beosthreads     use BeOS threads [no]
  --enable-os2threads      use OS/2 threads [no]
  --enable-pthreads        use pthreads [no]
  --enable-w32threads      use Win32 threads [no]
  --enable-x11grab         enable X11 grabbing [no]
  --disable-network        disable network support [no]
  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  --enable-gray            enable full grayscale support (slower color)
  --disable-swscale-alpha  disable alpha channel support in swscale
  --disable-fastdiv        disable table-based division
  --enable-small           optimize for size instead of speed
  --disable-aandct         disable AAN DCT code
105
  --disable-dct            disable DCT code
106 107 108 109 110 111 112
  --disable-fft            disable FFT code
  --disable-golomb         disable Golomb code
  --disable-lpc            disable LPC code
  --disable-mdct           disable MDCT code
  --disable-rdft           disable RDFT code
  --disable-vaapi          disable VAAPI code
  --disable-vdpau          disable VDPAU code
Laurent Aimar's avatar
Laurent Aimar committed
113
  --disable-dxva2          disable DXVA2 code
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215
  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
  --enable-memalign-hack   emulate memalign, interferes with memory debuggers
  --enable-beos-netserver  enable BeOS netserver
  --disable-encoder=NAME   disable encoder NAME
  --enable-encoder=NAME    enable encoder NAME
  --disable-encoders       disable all encoders
  --disable-decoder=NAME   disable decoder NAME
  --enable-decoder=NAME    enable decoder NAME
  --disable-decoders       disable all decoders
  --disable-hwaccel=NAME   disable hwaccel NAME
  --enable-hwaccel=NAME    enable hwaccel NAME
  --disable-hwaccels       disable all hwaccels
  --disable-muxer=NAME     disable muxer NAME
  --enable-muxer=NAME      enable muxer NAME
  --disable-muxers         disable all muxers
  --disable-demuxer=NAME   disable demuxer NAME
  --enable-demuxer=NAME    enable demuxer NAME
  --disable-demuxers       disable all demuxers
  --enable-parser=NAME     enable parser NAME
  --disable-parser=NAME    disable parser NAME
  --disable-parsers        disable all parsers
  --enable-bsf=NAME        enable bitstream filter NAME
  --disable-bsf=NAME       disable bitstream filter NAME
  --disable-bsfs           disable all bitstream filters
  --enable-protocol=NAME   enable protocol NAME
  --disable-protocol=NAME  disable protocol NAME
  --disable-protocols      disable all protocols
  --disable-indev=NAME     disable input device NAME
  --disable-outdev=NAME    disable output device NAME
  --disable-indevs         disable input devices
  --disable-outdevs        disable output devices
  --disable-devices        disable all devices
  --enable-filter=NAME     enable filter NAME
  --disable-filter=NAME    disable filter NAME
  --disable-filters        disable all filters
  --list-decoders          show all available decoders
  --list-encoders          show all available encoders
  --list-hwaccels          show all available hardware accelerators
  --list-muxers            show all available muxers
  --list-demuxers          show all available demuxers
  --list-parsers           show all available parsers
  --list-protocols         show all available protocols
  --list-bsfs              show all available bitstream filters
  --list-indevs            show all available input devices
  --list-outdevs           show all available output devices
  --list-filters           show all available filters

External library support:
  --enable-avisynth        enable reading of AVISynth script files [no]
  --enable-bzlib           enable bzlib [autodetect]
  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
                           and libraw1394 [no]
  --enable-libdirac        enable Dirac support via libdirac [no]
  --enable-libfaac         enable FAAC support via libfaac [no]
  --enable-libfaad         enable FAAD support via libfaad [no]
  --enable-libfaadbin      open libfaad.so.0 at runtime [no]
  --enable-libgsm          enable GSM support via libgsm [no]
  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
  --enable-libnut          enable NUT (de)muxing via libnut,
                           native (de)muxer exists [no]
  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
  --enable-libschroedinger enable Dirac support via libschroedinger [no]
  --enable-libspeex        enable Speex decoding via libspeex [no]
  --enable-libtheora       enable Theora encoding via libtheora [no]
  --enable-libvorbis       enable Vorbis encoding via libvorbis,
                           native implementation exists [no]
  --enable-libx264         enable H.264 encoding via x264 [no]
  --enable-libxvid         enable Xvid encoding via xvidcore,
                           native MPEG-4/Xvid encoder exists [no]
  --enable-mlib            enable Sun medialib [no]
  --enable-zlib            enable zlib [autodetect]

Advanced options (experts only):
  --source-path=PATH       path to source code [$source_path]
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
  --enable-cross-compile   assume a cross-compiler is used
  --sysroot=PATH           root of cross-build tree
  --sysinclude=PATH        location of cross-build system headers
  --target-os=OS           compiler targets OS [$target_os]
  --target-exec=CMD        command to run executables on target
  --target-path=DIR        path to view of build directory on target
  --nm=NM                  use nm tool
  --as=AS                  use assembler AS [$as_default]
  --cc=CC                  use C compiler CC [$cc_default]
  --ld=LD                  use linker LD
  --host-cc=HOSTCC         use host C compiler HOSTCC
  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
  --host-libs=HLIBS        use libs HLIBS when linking for host
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
  --extra-libs=ELIBS       add ELIBS [$ELIBS]
  --extra-version=STRING   version string suffix []
  --build-suffix=SUFFIX    library name suffix []
  --arch=ARCH              select architecture [$arch]
  --cpu=CPU                select the minimum required CPU (affects
                           instruction selection, may crash on older CPUs)
  --enable-powerpc-perf    enable performance report on PPC
                           (requires enabling PMC)
216
  --disable-asm            disable all assembler optimizations
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233
  --disable-altivec        disable AltiVec optimizations
  --disable-amd3dnow       disable 3DNow! optimizations
  --disable-amd3dnowext    disable 3DNow! extended optimizations
  --disable-mmx            disable MMX optimizations
  --disable-mmx2           disable MMX2 optimizations
  --disable-sse            disable SSE optimizations
  --disable-ssse3          disable SSSE3 optimizations
  --disable-armv5te        disable armv5te optimizations
  --disable-armv6          disable armv6 optimizations
  --disable-armv6t2        disable armv6t2 optimizations
  --disable-armvfp         disable ARM VFP optimizations
  --disable-iwmmxt         disable iwmmxt optimizations
  --disable-mmi            disable MMI optimizations
  --disable-neon           disable neon optimizations
  --disable-vis            disable VIS optimizations
  --disable-yasm           disable use of yasm assembler
  --enable-pic             build position-independent code
234
  --malloc-prefix=PFX      prefix malloc and related names with PFX
235
  --enable-sram            allow use of on-chip SRAM
236 237 238 239 240 241 242 243 244 245 246

Developer options (useful when working on FFmpeg itself):
  --disable-debug          disable debugging symbols
  --enable-debug=LEVEL     set the debug level [$debuglevel]
  --enable-gprof           enable profiling with gprof [$gprof]
  --disable-optimizations  disable compiler optimizations
  --enable-extra-warnings  enable more compiler warnings
  --disable-stripping      disable stripping of executables and shared libraries

NOTE: Object files are built at the place where configure is launched.
EOF
247
  exit 0
248
}
249

250
log(){
251
    echo "$@" >> $logfile
252 253
}

254
log_file(){
Måns Rullgård's avatar
Måns Rullgård committed
255
    log BEGIN $1
256
    pr -n -t $1 >> $logfile
Måns Rullgård's avatar
Måns Rullgård committed
257 258 259
    log END $1
}

260
echolog(){
Måns Rullgård's avatar
Måns Rullgård committed
261
    log "$@"
262
    echo "$@"
263 264 265 266 267
}

die(){
    echolog "$@"
    cat <<EOF
268

269 270
If you think configure made a mistake, make sure you are using the latest
version from SVN.  If the latest version fails, report the problem to the
271
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
272
EOF
273
    if disabled logging; then
274
        cat <<EOF
275 276
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
277 278 279
EOF
    else
cat <<EOF
280 281
Include the log file "$logfile" produced by configure as this will help
solving the problem.
282 283
EOF
    fi
284 285 286
    exit 1
}

287
# Avoid locale weirdness, besides we really just want to translate ASCII.
288
toupper(){
289
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
290 291
}

Måns Rullgård's avatar
Måns Rullgård committed
292
tolower(){
293
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
Måns Rullgård's avatar
Måns Rullgård committed
294 295
}

296 297 298 299
c_escape(){
    echo "$*" | sed 's/["\\]/\\\0/g'
}

300 301 302 303 304 305
sh_quote(){
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
    test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
    echo "$v"
}

306 307 308 309
filter(){
    pat=$1
    shift
    for v; do
310
        eval "case $v in $pat) echo $v ;; esac"
311 312 313
    done
}

314 315 316 317 318 319 320 321
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

322 323 324 325 326 327 328 329
set_weak(){
    value=$1
    shift
    for var; do
        eval : \${$var:=$value}
    done
}

330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
pushvar(){
    for var in $*; do
        eval level=\${${var}_level:=0}
        eval ${var}_${level}="\$$var"
        eval ${var}_level=$(($level+1))
    done
}

popvar(){
    for var in $*; do
        eval level=\${${var}_level:-0}
        test $level = 0 && continue
        eval level=$(($level-1))
        eval $var="\${${var}_${level}}"
        eval ${var}_level=$level
        eval unset ${var}_${level}
    done
}

349 350 351 352 353 354 355 356
enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

357 358 359 360 361 362 363 364
enable_weak(){
    set_weak yes $*
}

disable_weak(){
    set_weak no $*
}

365
enable_safe(){
366 367 368
    for var; do
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
    done
369 370 371
}

disable_safe(){
372 373 374
    for var; do
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
    done
375 376
}

377 378 379 380
do_enable_deep(){
    for var; do
        enabled $var && continue
        eval sel="\$${var}_select"
381 382
        eval sgs="\$${var}_suggest"
        pushvar var sgs
383
        enable_deep $sel
384 385
        popvar sgs
        enable_deep_weak $sgs
386 387 388 389 390 391 392 393 394
        popvar var
    done
}

enable_deep(){
    do_enable_deep $*
    enable $*
}

395 396 397 398 399
enable_deep_weak(){
    do_enable_deep $*
    enable_weak $*
}

400
enabled(){
401 402
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xyes"
403 404
}

405
disabled(){
406 407
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xno"
408 409
}

410 411 412 413 414 415
enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

416 417 418 419 420 421
disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

422 423 424 425 426 427
enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

428 429 430 431
disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
432
    return 1
433 434
}

435 436
set_default(){
    for opt; do
437
        eval : \${$opt:=\$${opt}_default}
438 439 440
    done
}

441 442 443 444 445 446 447 448 449
is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

450 451
check_deps(){
    for cfg; do
452
        cfg="${cfg#!}"
453 454 455 456
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking

457 458
        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"
459
        eval dep_sel="\$${cfg}_select"
460
        eval dep_sgs="\$${cfg}_suggest"
461 462
        eval dep_ifa="\$${cfg}_if"
        eval dep_ifn="\$${cfg}_if_any"
463

464 465 466
        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
        check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
467

468 469
        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
Måns Rullgård's avatar
Måns Rullgård committed
470 471
        enabled_all  $dep_all || disable $cfg
        enabled_any  $dep_any || disable $cfg
472
        disabled_any $dep_sel && disable $cfg
473

474 475 476
        if enabled $cfg; then
            eval dep_extralibs="\$${cfg}_extralibs"
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
477
            enable_deep $dep_sel
478
            enable_deep_weak $dep_sgs
479 480
        fi

481
        disable ${cfg}_checking
482 483 484
    done
}

485 486 487 488 489 490
print_config(){
    pfx=$1
    header=$2
    makefile=$3
    shift 3
    for cfg; do
491
        ucname="$(toupper $cfg)"
492
        if enabled $cfg; then
493 494 495
            echo "#define ${pfx}${ucname} 1" >> $header
            echo "${pfx}${ucname}=yes" >> $makefile
        else
496
            echo "#define ${pfx}${ucname} 0" >> $header
497
            echo "!${pfx}${ucname}=yes" >> $makefile
498 499
        fi
    done
500 501 502
}

flags_saved(){
503
    (: ${SAVE_CFLAGS?}) 2> /dev/null
504 505
}

506
save_flags(){
507
    flags_saved && return
508 509 510 511 512 513
    SAVE_CFLAGS="$CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
514
    flags_saved || return
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
    CFLAGS="$SAVE_CFLAGS"
    LDFLAGS="$SAVE_LDFLAGS"
    extralibs="$SAVE_extralibs"
    unset SAVE_CFLAGS
    unset SAVE_LDFLAGS
    unset SAVE_extralibs
}

temp_cflags(){
    save_flags
    CFLAGS="$CFLAGS $*"
}

temp_ldflags(){
    save_flags
    LDFLAGS="$LDFLAGS $*"
}

temp_extralibs(){
    save_flags
    extralibs="$extralibs $*"
}

538 539 540 541 542 543 544
append(){
    var=$1
    shift
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
    eval "$var=\"\$$var $*\""
}

545
add_cppflags(){
546
    append CPPFLAGS $($filter_cppflags "$@")
547 548
}

549
add_cflags(){
550
    append CFLAGS $($filter_cflags "$@")
551 552
}

553
add_asflags(){
554
    append ASFLAGS $($filter_asflags "$@")
555 556
}

557 558 559 560 561 562 563 564
add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

565
check_cmd(){
Måns Rullgård's avatar
Måns Rullgård committed
566
    log "$@"
567
    "$@" >> $logfile 2>&1
568 569
}

570
check_cc(){
571
    log check_cc "$@"
572
    cat > $TMPC
573
    log_file $TMPC
574
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
575 576 577 578
}

check_cpp(){
    log check_cpp "$@"
579
    cat > $TMPC
580
    log_file $TMPC
Måns Rullgård's avatar
Måns Rullgård committed
581
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
582 583
}

584 585 586 587
check_as(){
    log check_as "$@"
    cat > $TMPC
    log_file $TMPC
588
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
589 590
}

591 592 593
check_asm(){
    log check_asm "$@"
    name="$1"
594
    code="$2"
595
    shift 2
596 597
    disable $name
    check_as "$@" <<EOF && enable $name
598
void foo(void){ __asm__ volatile($code); }
599 600 601
EOF
}

Loren Merritt's avatar
Loren Merritt committed
602 603 604 605 606 607 608 609
check_yasm(){
    log check_yasm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
}

610
check_ld(){
611
    log check_ld "$@"
612 613 614 615 616
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
617
    check_cc $($filter_cflags $flags) || return
618
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
619 620
}

621 622
check_cppflags(){
    log check_cppflags "$@"
623 624
    set -- $($filter_cppflags "$@")
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
625 626 627 628
int x;
EOF
}

629
check_cflags(){
630
    log check_cflags "$@"
631 632
    set -- $($filter_cflags "$@")
    check_cc "$@" <<EOF && append CFLAGS "$@"
633 634 635 636
int x;
EOF
}

637 638 639
test_ldflags(){
    log test_ldflags "$@"
    check_ld "$@" <<EOF
640
int main(void){ return 0; }
641 642 643
EOF
}

644 645 646 647 648
check_ldflags(){
    log check_ldflags "$@"
    test_ldflags "$@" && add_ldflags "$@"
}

649
check_header(){
650
    log check_header "$@"
651 652
    header=$1
    shift
653 654
    disable_safe $header
    check_cpp "$@" <<EOF && enable_safe $header
655 656 657 658 659 660
#include <$header>
int x;
EOF
}

check_func(){
661
    log check_func "$@"
662 663
    func=$1
    shift
Måns Rullgård's avatar
Måns Rullgård committed
664 665
    disable $func
    check_ld "$@" <<EOF && enable $func
666
extern int $func();
667
int main(void){ $func(); }
668 669 670
EOF
}

671
check_mathfunc(){
672
    log check_mathfunc "$@"
673 674 675 676 677 678 679 680 681
    func=$1
    shift
    disable $func
    check_ld "$@" <<EOF && enable $func
#include <math.h>
int main(void){ $func(0); return 0; }
EOF
}

682 683
check_func_headers(){
    log check_func_headers "$@"
684 685 686 687 688 689 690 691 692
    headers=$1
    func=$2
    shift 2
    disable $func
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
693
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
694
$incs
695
int main(int argc, char **argv){
696
    return (long) $func;
697 698 699 700
}
EOF
}

701 702 703 704
check_cpp_condition(){
    log check_cpp_condition "$@"
    header=$1
    condition=$2
705 706
    shift 2
    check_cpp $($filter_cppflags "$@") <<EOF
707 708 709 710 711 712 713
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

714 715 716 717 718
check_lib(){
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
719 720 721 722 723
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
724 725
}

726 727 728 729 730
check_lib2(){
    log check_lib2 "$@"
    headers="$1"
    func="$2"
    shift 2
731
    check_func_headers "$headers" $func "$@" && add_extralibs "$@"
732 733
}

734
check_exec(){
735
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
736 737
}

738
check_exec_crash(){
739
    code=$(cat)
740 741 742 743 744 745 746

    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
    # are safe but may not be available everywhere.  Thus we use
    # raise(SIGTERM) instead.  The check is run in a subshell so we
    # can redirect the "Terminated" message from the shell.  SIGBUS
    # is not defined by standard C so it is used conditionally.

747
    (check_exec "$@") >> $logfile 2>&1 <<EOF
748 749 750 751
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
Diego Biurrun's avatar
Diego Biurrun committed
752
int main(void){
753 754 755 756 757 758 759 760 761 762 763
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    { $code }
}
EOF
}

764 765 766 767 768
check_type(){
    log check_type "$@"
    headers=$1
    type=$2
    shift 2
769
    disable_safe "$type"
770 771 772 773 774
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
775
    check_cc "$@" <<EOF && enable_safe "$type"
776 777 778 779 780
$incs
$type v;
EOF
}

781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798
check_struct(){
    log check_type "$@"
    headers=$1
    struct=$2
    member=$3
    shift 3
    disable_safe "${struct}_${member}"
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
    check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
$incs
const void *p = &(($struct *)0)->$member;
EOF
}

799 800 801 802 803 804
require(){
    name="$1"
    header="$2"
    func="$3"
    shift 3
    check_lib $header $func "$@" || die "ERROR: $name not found"
805 806
}

807 808 809 810 811 812 813 814
require2(){
    name="$1"
    headers="$2"
    func="$3"
    shift 3
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
}

815 816 817 818 819 820 821 822 823 824
check_foo_config(){
    cfg=$1
    pkg=$2
    header=$3
    func=$4
    shift 4
    disable $cfg
    check_cmd ${pkg}-config --version
    err=$?
    if test "$err" = 0; then
825 826
        temp_cflags $(${pkg}-config --cflags)
        temp_extralibs $(${pkg}-config --libs)
827 828 829 830 831
        check_lib "$@" $header $func && enable $cfg
    fi
    return $err
}

832 833 834 835 836 837 838 839 840 841 842 843 844 845
check_host_cc(){
    log check_host_cc "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
}

check_host_cflags(){
    log check_host_cflags "$@"
    check_host_cc "$@" <<EOF && append host_cflags "$@"
int x;
EOF
}

846 847 848 849 850 851
apply(){
    file=$1
    shift
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
}

852 853 854 855 856 857
cp_if_changed(){
    cmp -s "$1" "$2" &&
        echo "$2 is unchanged" ||
        cp -f "$1" "$2"
}

858 859 860
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

861 862 863 864 865
COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
Vitor Sessak's avatar
Vitor Sessak committed
866
    filters
867
    hwaccels
868
    indevs
869
    muxers
870
    outdevs
871 872 873 874 875 876
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
877
    aandct
878 879
    avcodec
    avdevice
880 881
    avfilter
    avfilter_lavf
882
    avformat
883 884
    avisynth
    beos_netserver
885
    bzlib
886
    dct
887
    doc
Laurent Aimar's avatar
Laurent Aimar committed
888
    dxva2
889
    fastdiv
890 891 892
    ffmpeg
    ffplay
    ffserver
893
    fft
894
    golomb
895
    gpl
896
    gprof
897
    gray
Aurelien Jacobs's avatar
Aurelien Jacobs committed
898
    hardcoded_tables
Ramiro Polla's avatar
Ramiro Polla committed
899
    libdc1394
900
    libdirac
901 902 903
    libfaac
    libfaad
    libfaadbin
904
    libgsm
905
    libmp3lame
906
    libnut
907 908
    libopencore_amrnb
    libopencore_amrwb
909
    libopenjpeg
910
    libschroedinger
David Conrad's avatar
David Conrad committed
911
    libspeex
Diego Biurrun's avatar
Diego Biurrun committed
912
    libtheora
913
    libvorbis
914 915
    libx264
    libxvid
916
    lpc
917
    mdct
918
    memalign_hack
919
    mlib
920 921
    mpegaudio_hp
    network
922
    nonfree
923
    pic
924
    postproc
925
    powerpc_perf
926
    rdft
927
    runtime_cpudetect
928
    shared
929
    small
930
    sram
931
    static
932
    swscale
933
    swscale_alpha
934 935
    vaapi
    vdpau
936
    version3
937
    x11grab
938
    zlib
939
"
940

941 942
THREADS_LIST='
    beosthreads
943
    os2threads
944 945 946 947
    pthreads
    w32threads
'

948 949
ARCH_LIST='
    alpha
950
    arm
951 952 953
    avr32
    avr32_ap
    avr32_uc
954 955 956 957
    bfin
    ia64
    m68k
    mips
958
    mips64
959
    parisc
960
    ppc
961
    ppc64
962 963 964 965 966 967 968 969 970 971
    s390
    sh4
    sparc
    sparc64
    x86
    x86_32
    x86_64
'

ARCH_EXT_LIST='
972
    altivec
973
    amd3dnow
974
    amd3dnowext
975
    armv5te
976
    armv6
977
    armv6t2
Måns Rullgård's avatar
Måns Rullgård committed
978
    armvfp
979 980 981
    iwmmxt
    mmi
    mmx
982
    mmx2
983
    neon
984
    ppc4xx
985
    sse
986
    ssse3
987
    vis
988 989
'

990 991 992 993
HAVE_LIST_PUB='
    bigendian
'

994 995
HAVE_LIST="
    $ARCH_EXT_LIST
996
    $HAVE_LIST_PUB
997
    $THREADS_LIST
998
    alsa_asoundlib_h
999
    altivec_h
1000
    arpa_inet_h
1001
    attribute_may_alias
1002
    attribute_packed
1003
    bswap
Alex Beregszaszi's avatar
Alex Beregszaszi committed
1004
    closesocket
1005
    cmov
1006
    conio_h
1007
    dcbzl
1008 1009 1010 1011 1012
    dev_bktr_ioctl_bt848_h
    dev_bktr_ioctl_meteor_h
    dev_ic_bt8xx_h
    dev_video_meteor_ioctl_meteor_h
    dev_video_bktr_ioctl_bt848_h
1013
    dlfcn_h
1014
    dlopen
1015
    dos_paths
1016 1017
    ebp_available
    ebx_available
1018 1019
    exp2
    exp2f
1020
    fast_64bit
1021
    fast_clz
1022
    fast_cmov
1023
    fast_unaligned
Måns Rullgård's avatar
Måns Rullgård committed
1024
    fork
1025
    getaddrinfo
1026
    gethrtime
1027
    GetProcessTimes
Ramiro Polla's avatar
Ramiro Polla committed
1028
    getrusage