configure 77.7 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 58 59 60 61 62
show_help(){
  echo "Usage: configure [options]"
  echo "Options: [defaults in brackets after descriptions]"
  echo
  echo "Standard options:"
  echo "  --help                   print this message"
63 64
  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  echo "  --disable-logging        do not log configure debug information"
65
  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
66
  echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
67
  echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
68
  echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
69
  echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
70
  echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
71
  echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
72 73
  echo
  echo "Configuration options:"
74 75
  echo "  --disable-static         do not build static libraries [no]"
  echo "  --enable-shared          build shared libraries [no]"
76 77
  echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  echo "                           and binaries will be under GPL [no]"
78
  echo "  --enable-version3        upgrade (L)GPL to version 3 [no]"
79 80
  echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  echo "                           and binaries will be unredistributable [no]"
81 82 83
  echo "  --disable-ffmpeg         disable ffmpeg build"
  echo "  --disable-ffplay         disable ffplay build"
  echo "  --disable-ffserver       disable ffserver build"
84
  echo "  --enable-postproc        enable GPLed postprocessing support [no]"
85
  echo "  --enable-avfilter        video filter support [no]"
86
  echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
87 88 89 90 91
  echo "  --enable-beosthreads     use BeOS threads [no]"
  echo "  --enable-os2threads      use OS/2 threads [no]"
  echo "  --enable-pthreads        use pthreads [no]"
  echo "  --enable-w32threads      use Win32 threads [no]"
  echo "  --enable-x11grab         enable X11 grabbing [no]"
92 93 94 95
  echo "  --disable-network        disable network support [no]"
  echo "  --disable-ipv6           disable IPv6 support [no]"
  echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  echo "  --enable-gray            enable full grayscale support (slower color)"
96
  echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
97
  echo "  --disable-fastdiv        disable table-based division"
98 99 100 101 102
  echo "  --enable-small           optimize for size instead of speed"
  echo "  --disable-aandct         disable AAN DCT code"
  echo "  --disable-fft            disable FFT code"
  echo "  --disable-golomb         disable Golomb code"
  echo "  --disable-mdct           disable MDCT code"
103
  echo "  --disable-rdft           disable RDFT code"
104 105
  echo "  --disable-vaapi          disable VAAPI code"
  echo "  --disable-vdpau          disable VDPAU code"
106
  echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
107 108 109 110 111 112 113 114 115
  echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
  echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
  echo "  --enable-beos-netserver  enable BeOS netserver"
  echo "  --disable-encoder=NAME   disable encoder NAME"
  echo "  --enable-encoder=NAME    enable encoder NAME"
  echo "  --disable-encoders       disable all encoders"
  echo "  --disable-decoder=NAME   disable decoder NAME"
  echo "  --enable-decoder=NAME    enable decoder NAME"
  echo "  --disable-decoders       disable all decoders"
116 117 118
  echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
  echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
  echo "  --disable-hwaccels       disable all hwaccels"
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
  echo "  --disable-muxer=NAME     disable muxer NAME"
  echo "  --enable-muxer=NAME      enable muxer NAME"
  echo "  --disable-muxers         disable all muxers"
  echo "  --disable-demuxer=NAME   disable demuxer NAME"
  echo "  --enable-demuxer=NAME    enable demuxer NAME"
  echo "  --disable-demuxers       disable all demuxers"
  echo "  --enable-parser=NAME     enable parser NAME"
  echo "  --disable-parser=NAME    disable parser NAME"
  echo "  --disable-parsers        disable all parsers"
  echo "  --enable-bsf=NAME        enable bitstream filter NAME"
  echo "  --disable-bsf=NAME       disable bitstream filter NAME"
  echo "  --disable-bsfs           disable all bitstream filters"
  echo "  --enable-protocol=NAME   enable protocol NAME"
  echo "  --disable-protocol=NAME  disable protocol NAME"
  echo "  --disable-protocols      disable all protocols"
  echo "  --disable-indevs         disable input devices"
  echo "  --disable-outdevs        disable output devices"
  echo "  --disable-devices        disable all devices"
  echo "  --enable-filter=NAME     enable filter NAME"
  echo "  --disable-filter=NAME    disable filter NAME"
  echo "  --disable-filters        disable all filters"
  echo "  --list-decoders          show all available decoders"
  echo "  --list-encoders          show all available encoders"
142
  echo "  --list-hwaccels          show all available hardware accelerators"
143 144 145 146 147 148 149 150
  echo "  --list-muxers            show all available muxers"
  echo "  --list-demuxers          show all available demuxers"
  echo "  --list-parsers           show all available parsers"
  echo "  --list-protocols         show all available protocols"
  echo "  --list-bsfs              show all available bitstream filters"
  echo "  --list-indevs            show all available input devices"
  echo "  --list-outdevs           show all available output devices"
  echo "  --list-filters           show all available filters"
151 152
  echo
  echo "External library support:"
153
  echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
154 155 156
  echo "  --enable-bzlib           enable bzlib [autodetect]"
  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
157 158
  echo "  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
  echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
Ramiro Polla's avatar
Ramiro Polla committed
159
  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
160 161 162 163 164 165 166
  echo "                           and libraw1394 [no]"
  echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
  echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
  echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
  echo "  --enable-libgsm          enable GSM support via libgsm [no]"
  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
167
  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
168
  echo "                           native (de)muxer exists [no]"
169
  echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
170 171 172
  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
  echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
  echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
173
  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
174 175
  echo "                           native implementation exists [no]"
  echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
176
  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
177
  echo "                           native MPEG-4/Xvid encoder exists [no]"
Diego Biurrun's avatar
Diego Biurrun committed
178
  echo "  --enable-mlib            enable Sun medialib [no]"
179
  echo "  --enable-zlib            enable zlib [autodetect]"
180 181 182 183
  echo ""
  echo "Advanced options (experts only):"
  echo "  --source-path=PATH       path to source code [$source_path]"
  echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
184
  echo "  --enable-cross-compile   assume a cross-compiler is used"
185 186
  echo "  --sysroot=PATH           root of cross-build tree"
  echo "  --sysinclude=PATH        location of cross-build system headers"
187
  echo "  --target-os=OS           compiler targets OS [$target_os]"
188 189
  echo "  --target-exec=CMD        command to run executables on target"
  echo "  --target-path=DIR        path to view of build directory on target"
190
  echo "  --nm=NM                  use nm tool"
191
  echo "  --as=AS                  use assembler AS [$as_default]"
192
  echo "  --cc=CC                  use C compiler CC [$cc_default]"
193 194 195 196
  echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
  echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
  echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
  echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
197 198 199
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
200
  echo "  --extra-version=STRING   version string suffix []"
201 202 203
  echo "  --build-suffix=SUFFIX    library name suffix []"
  echo "  --arch=ARCH              select architecture [$arch]"
  echo "  --cpu=CPU                select the minimum required CPU (affects"
204
  echo "                           instruction selection, may crash on older CPUs)"
205
  echo "  --enable-powerpc-perf    enable performance report on PPC"
206
  echo "                           (requires enabling PMC)"
207
  echo "  --disable-altivec        disable AltiVec optimizations"
208
  echo "  --disable-amd3dnow       disable 3DNow! optimizations"
209
  echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
210 211
  echo "  --disable-mmx            disable MMX optimizations"
  echo "  --disable-mmx2           disable MMX2 optimizations"
212
  echo "  --disable-sse            disable SSE optimizations"
213 214 215
  echo "  --disable-ssse3          disable SSSE3 optimizations"
  echo "  --disable-armv5te        disable armv5te optimizations"
  echo "  --disable-armv6          disable armv6 optimizations"
216
  echo "  --disable-armv6t2        disable armv6t2 optimizations"
Diego Biurrun's avatar
Diego Biurrun committed
217
  echo "  --disable-armvfp         disable ARM VFP optimizations"
218
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
219 220 221
  echo "  --disable-mmi            disable MMI optimizations"
  echo "  --disable-neon           disable neon optimizations"
  echo "  --disable-vis            disable VIS optimizations"
222
  echo "  --disable-yasm           disable use of yasm assembler"
223 224
  echo
  echo "Developer options (useful when working on FFmpeg itself):"
225
  echo "  --disable-debug          disable debugging symbols"
226
  echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
227
  echo "  --enable-gprof           enable profiling with gprof [$gprof]"
228
  echo "  --disable-optimizations  disable compiler optimizations"
229
  echo "  --enable-extra-warnings  enable more compiler warnings"
230
  echo "  --disable-stripping      disable stripping of executables and shared libraries"
231 232
  echo ""
  echo "NOTE: Object files are built at the place where configure is launched."
233
  exit 0
234
}
235

236
log(){
237
    echo "$@" >> $logfile
238 239
}

240
log_file(){
Måns Rullgård's avatar
Måns Rullgård committed
241
    log BEGIN $1
242
    pr -n -t $1 >> $logfile
Måns Rullgård's avatar
Måns Rullgård committed
243 244 245
    log END $1
}

246
echolog(){
Måns Rullgård's avatar
Måns Rullgård committed
247
    log "$@"
248
    echo "$@"
249 250 251 252 253
}

die(){
    echolog "$@"
    cat <<EOF
254

255 256
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
257
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
258
EOF
259
    if disabled logging; then
260
        cat <<EOF
261 262
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
263 264 265
EOF
    else
cat <<EOF
266 267
Include the log file "$logfile" produced by configure as this will help
solving the problem.
268 269
EOF
    fi
270 271 272
    exit 1
}

273
# Avoid locale weirdness, besides we really just want to translate ASCII.
274
toupper(){
275
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
276 277
}

Måns Rullgård's avatar
Måns Rullgård committed
278
tolower(){
279
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
Måns Rullgård's avatar
Måns Rullgård committed
280 281
}

282 283 284 285
c_escape(){
    echo "$*" | sed 's/["\\]/\\\0/g'
}

286 287 288 289 290 291 292 293
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

294 295 296 297 298 299 300 301
set_weak(){
    value=$1
    shift
    for var; do
        eval : \${$var:=$value}
    done
}

302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320
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
}

321 322 323 324 325 326 327 328
enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

329 330 331 332 333 334 335 336
enable_weak(){
    set_weak yes $*
}

disable_weak(){
    set_weak no $*
}

337 338 339 340 341 342 343 344
enable_safe(){
    enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
}

disable_safe(){
    disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
}

345 346 347 348
do_enable_deep(){
    for var; do
        enabled $var && continue
        eval sel="\$${var}_select"
349 350
        eval sgs="\$${var}_suggest"
        pushvar var sgs
351
        enable_deep $sel
352 353
        popvar sgs
        enable_deep_weak $sgs
354 355 356 357 358 359 360 361 362
        popvar var
    done
}

enable_deep(){
    do_enable_deep $*
    enable $*
}

363 364 365 366 367
enable_deep_weak(){
    do_enable_deep $*
    enable_weak $*
}

368
enabled(){
369 370
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xyes"
371 372
}

373
disabled(){
374 375
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xno"
376 377
}

378 379 380 381 382 383
enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

384 385 386 387 388 389
disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

390 391 392 393 394 395
enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

396 397 398 399
disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
400
    return 1
401 402
}

403 404
set_default(){
    for opt; do
405
        eval : \${$opt:=\$${opt}_default}
406 407 408
    done
}

409 410 411 412 413 414 415 416 417
is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

418 419
check_deps(){
    for cfg; do
420
        cfg="${cfg#!}"
421 422 423 424
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking

425 426
        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"
427
        eval dep_sel="\$${cfg}_select"
428
        eval dep_sgs="\$${cfg}_suggest"
429

430 431 432
        pushvar cfg dep_all dep_any dep_sel dep_sgs
        check_deps $dep_all $dep_any $dep_sel $dep_sgs
        popvar cfg dep_all dep_any dep_sel dep_sgs
433

Måns Rullgård's avatar
Måns Rullgård committed
434 435
        enabled_all  $dep_all || disable $cfg
        enabled_any  $dep_any || disable $cfg
436
        disabled_any $dep_sel && disable $cfg
437

438 439 440
        if enabled $cfg; then
            eval dep_extralibs="\$${cfg}_extralibs"
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
441
            enable_deep $dep_sel
442
            enable_deep_weak $dep_sgs
443 444
        fi

445
        disable ${cfg}_checking
446 447 448
    done
}

449 450 451 452 453 454
print_config(){
    pfx=$1
    header=$2
    makefile=$3
    shift 3
    for cfg; do
455
        ucname="$(toupper $cfg)"
456
        if enabled $cfg; then
457 458 459
            echo "#define ${pfx}${ucname} 1" >> $header
            echo "${pfx}${ucname}=yes" >> $makefile
        else
460
            echo "#define ${pfx}${ucname} 0" >> $header
461 462
        fi
    done
463 464 465
}

flags_saved(){
466
    (: ${SAVE_CFLAGS?}) 2> /dev/null
467 468
}

469
save_flags(){
470
    flags_saved && return
471 472 473 474 475 476
    SAVE_CFLAGS="$CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
477
    flags_saved || return
478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500
    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 $*"
}

501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519
append(){
    var=$1
    shift
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
    eval "$var=\"\$$var $*\""
}

add_cflags(){
    append CFLAGS "$@"
}

add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

520
check_cmd(){
Måns Rullgård's avatar
Måns Rullgård committed
521
    log "$@"
522
    "$@" >> $logfile 2>&1
523 524
}

525
check_cc(){
526
    log check_cc "$@"
527
    cat > $TMPC
528
    log_file $TMPC
529
    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
530 531 532 533
}

check_cpp(){
    log check_cpp "$@"
534
    cat > $TMPC
535
    log_file $TMPC
536
    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
537 538
}

539 540 541 542 543 544 545
check_as(){
    log check_as "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
}

546 547 548 549 550
check_asm(){
    log check_asm "$@"
    name="$1"
    asm="$2"
    shift 2
551
    check_as "$@" <<EOF && enable $name || disable $name
552
void foo(void){ __asm__ volatile($asm); }
553 554 555
EOF
}

Loren Merritt's avatar
Loren Merritt committed
556 557 558 559 560 561 562 563
check_yasm(){
    log check_yasm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
}

564
check_ld(){
565
    log check_ld "$@"
566
    check_cc || return
567 568 569 570 571 572
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
573 574 575
}

check_cflags(){
576 577
    log check_cflags "$@"
    check_cc "$@" <<EOF && add_cflags "$@"
578 579 580 581 582
int x;
EOF
}

check_ldflags(){
583 584
    log check_ldflags "$@"
    check_ld "$@" <<EOF && add_ldflags "$@"
585
int main(void){ return 0; }
586 587 588 589
EOF
}

check_header(){
590
    log check_header "$@"
591 592
    header=$1
    shift
593 594
    disable_safe $header
    check_cpp "$@" <<EOF && enable_safe $header
595 596 597 598 599 600
#include <$header>
int x;
EOF
}

check_func(){
601
    log check_func "$@"
602 603
    func=$1
    shift
Måns Rullgård's avatar
Måns Rullgård committed
604 605
    disable $func
    check_ld "$@" <<EOF && enable $func
606
extern int $func();
607
int main(void){ $func(); }
608 609 610
EOF
}

611 612
check_func_headers(){
    log check_func_headers "$@"
613 614 615 616 617 618 619 620 621
    headers=$1
    func=$2
    shift 2
    disable $func
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
622
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
623
$incs
624
int main(int argc, char **argv){
625 626 627 628 629 630
    (void) $func;
    return 0;
}
EOF
}

631 632 633 634 635 636 637 638 639 640 641 642
check_cpp_condition(){
    log check_cpp_condition "$@"
    header=$1
    condition=$2
    check_cpp <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

643 644 645 646 647
check_lib(){
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
648 649 650 651 652
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
653 654
}

655 656 657 658 659 660
check_lib2(){
    log check_lib2 "$@"
    headers="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
661
    check_func_headers "$headers" $func && add_extralibs "$@"
662 663 664 665 666
    err=$?
    restore_flags
    return $err
}

667
check_exec(){
668
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
669 670
}

671
check_exec_crash(){
672
    code=$(cat)
673 674 675 676 677 678 679

    # 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.

680
    (check_exec "$@") >> $logfile 2>&1 <<EOF
681 682 683 684
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
Diego Biurrun's avatar
Diego Biurrun committed
685
int main(void){
686 687 688 689 690 691 692 693 694 695 696
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    { $code }
}
EOF
}

697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
check_type(){
    log check_type "$@"
    headers=$1
    type=$2
    shift 2
    disable $type
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
    check_cc "$@" <<EOF && enable $type
$incs
$type v;
EOF
}

714 715 716 717 718 719
require(){
    name="$1"
    header="$2"
    func="$3"
    shift 3
    check_lib $header $func "$@" || die "ERROR: $name not found"
720 721
}

722 723 724 725 726 727 728 729
require2(){
    name="$1"
    headers="$2"
    func="$3"
    shift 3
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
}

730 731 732 733 734 735 736 737 738 739
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
740 741
        temp_cflags $(${pkg}-config --cflags)
        temp_extralibs $(${pkg}-config --libs)
742 743 744 745 746
        check_lib "$@" $header $func && enable $cfg
    fi
    return $err
}

747 748 749 750 751 752
apply(){
    file=$1
    shift
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
}

753 754 755
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

756 757 758 759 760
COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
Vitor Sessak's avatar
Vitor Sessak committed
761
    filters
762
    hwaccels
763
    indevs
764
    muxers
765
    outdevs
766 767 768 769 770 771
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
772
    aandct
773 774
    avfilter
    avfilter_lavf
775 776
    avisynth
    beos_netserver
777
    bzlib
778
    fastdiv
779 780 781
    ffmpeg
    ffplay
    ffserver
782
    fft
783
    golomb
784
    gpl
785
    gprof
786
    gray
Aurelien Jacobs's avatar
Aurelien Jacobs committed
787
    hardcoded_tables
788
    ipv6
789 790
    libamr_nb
    libamr_wb
Ramiro Polla's avatar
Ramiro Polla committed
791
    libdc1394
792
    libdirac
793 794 795
    libfaac
    libfaad
    libfaadbin
796
    libgsm
797
    libmp3lame
798
    libnut
799 800
    libopencore_amrnb
    libopencore_amrwb
801
    libopenjpeg
802
    libschroedinger
David Conrad's avatar
David Conrad committed
803
    libspeex
Diego Biurrun's avatar
Diego Biurrun committed
804
    libtheora
805
    libvorbis
806 807
    libx264
    libxvid
808
    mdct
809
    memalign_hack
810
    mlib
811 812
    mpegaudio_hp
    network
813
    nonfree
814
    postproc
815
    powerpc_perf
816
    rdft
817
    runtime_cpudetect
818
    shared
819
    small
820
    static
821
    swscale_alpha
822 823
    vaapi
    vdpau
824
    version3
825
    x11grab
826
    zlib
827
"
828

829 830
THREADS_LIST='
    beosthreads
831
    os2threads
832 833 834 835
    pthreads
    w32threads
'

836 837
ARCH_LIST='
    alpha
838
    arm
839 840 841 842
    bfin
    ia64
    m68k
    mips
843
    mips64
844
    parisc
845
    ppc
846
    ppc64
847 848 849 850 851 852 853 854 855 856
    s390
    sh4
    sparc
    sparc64
    x86
    x86_32
    x86_64
'

ARCH_EXT_LIST='
857
    altivec
858
    amd3dnow
859
    amd3dnowext
860
    armv5te
861
    armv6
862
    armv6t2
Måns Rullgård's avatar
Måns Rullgård committed
863
    armvfp
864 865 866
    iwmmxt
    mmi
    mmx
867
    mmx2
868
    neon
869
    ppc4xx
870
    sse
871
    ssse3
872
    vis
873 874 875 876 877
'

HAVE_LIST="
    $ARCH_EXT_LIST
    $THREADS_LIST
878
    alsa_asoundlib_h
879
    altivec_h
880
    arpa_inet_h
881
    bigendian
882
    bswap
Alex Beregszaszi's avatar
Alex Beregszaszi committed
883
    closesocket
884
    cmov
885
    conio_h
886
    dcbzl
887 888 889 890 891
    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
892
    dlfcn_h
893
    dlopen
894
    dos_paths
895 896
    ebp_available
    ebx_available
897
    fast_64bit
898
    fast_cmov
899
    fast_unaligned
Måns Rullgård's avatar
Måns Rullgård committed
900
    fork
901
    gethrtime
902
    GetProcessTimes
Ramiro Polla's avatar
Ramiro Polla committed
903
    getrusage
904
    inet_aton
Måns Rullgård's avatar
Måns Rullgård committed
905
    inline_asm
Måns Rullgård's avatar
Måns Rullgård committed
906
    ldbrx
907 908
    libdc1394_1
    libdc1394_2
909
    llrint
910
    loongson
911
    lrint
912
    lrintf
913
    lzo1x_999_compress
914 915
    machine_ioctl_bt848_h
    machine_ioctl_meteor_h
916 917
    malloc_h
    memalign
Ramiro Polla's avatar
Ramiro Polla committed
918
    mkstemp
919
    pld
920
    posix_memalign
921 922
    round
    roundf
923 924
    sdl
    sdl_video_size
925
    setmode
926
    socklen_t
Måns Rullgård's avatar
Måns Rullgård committed
927
    soundcard_h