granicus.if.org Git - libvpx/blob - configure

   1 #!/bin/sh
   2 ##
   3 ##  configure
   4 ##
   5 ##  This script is the front-end to the build system. It provides a similar
   6 ##  interface to standard configure scripts with some extra bits for dealing
   7 ##  with toolchains that differ from the standard POSIX interface and
   8 ##  for extracting subsets of the source tree. In theory, reusable parts
   9 ##  of this script were intended to live in build/make/configure.sh,
  10 ##  but in practice, the line is pretty blurry.
  11 ##
  12 ##  This build system is based in part on the FFmpeg configure script.
  13 ##
  14
  15 #source_path="`dirname \"$0\"`"
  16 source_path=${0%/*}
  17 . "${source_path}/build/make/configure.sh"
  18
  19 show_help(){
  20     show_help_pre
  21     cat << EOF
  22 Advanced options:
  23   ${toggle_libs}                  libraries
  24   ${toggle_examples}              examples
  25   ${toggle_docs}                  documentation
  26   ${toggle_unit_tests}            unit tests
  27   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
  28   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
  29   --libc=PATH                     path to alternate libc
  30   --size-limit=WxH                max size to allow in the decoder
  31   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  32   --sdk-path=PATH                 path to root of sdk (android builds only)
  33   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  34                                   supported by hardware [auto]
  35   ${toggle_codec_srcs}            in/exclude codec library source code
  36   ${toggle_debug_libs}            in/exclude debug version of libraries
  37   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  38   ${toggle_vp8}                   VP8 codec support
  39   ${toggle_vp9}                   VP9 codec support
  40   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  41   ${toggle_mem_tracker}           track memory usage
  42   ${toggle_postproc}              postprocessing
  43   ${toggle_vp9_postproc}          vp9 specific postprocessing
  44   ${toggle_multithread}           multithreaded encoding and decoding
  45   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  46   ${toggle_realtime_only}         enable this option while building for real-time encoding
  47   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  48   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  49   ${toggle_coefficient_range_checking}
  50                                   enable decoder to check if intermediate
  51                                   transform coefficients are in valid range
  52   ${toggle_runtime_cpu_detect}    runtime cpu detection
  53   ${toggle_shared}                shared library support
  54   ${toggle_static}                static library support
  55   ${toggle_small}                 favor smaller size over speed
  56   ${toggle_postproc_visualizer}   macro block / block level visualizers
  57   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  58   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  59   ${toggle_vp9_temporal_denoising}
  60                                   enable vp9 temporal denoising
  61   ${toggle_webm_io}               enable input from and output to WebM container
  62   ${toggle_libyuv}                enable libyuv
  63
  64 Codecs:
  65   Codecs can be selectively enabled or disabled individually, or by family:
  66       --disable-<codec>
  67   is equivalent to:
  68       --disable-<codec>-encoder
  69       --disable-<codec>-decoder
  70
  71   Codecs available in this distribution:
  72 EOF
  73 #restore editor state '
  74
  75     family="";
  76     last_family="";
  77     c="";
  78     str="";
  79     for c in ${CODECS}; do
  80         family=${c%_*}
  81         if [ "${family}" != "${last_family}" ]; then
  82             [ -z "${str}" ] || echo "${str}"
  83             str="$(printf '    %10s:' ${family})"
  84         fi
  85         str="${str} $(printf '%10s' ${c#*_})"
  86         last_family=${family}
  87     done
  88     echo "${str}"
  89     show_help_post
  90 }
  91
  92 ##
  93 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  94 ##
  95
  96 # all_platforms is a list of all supported target platforms. Maintain
  97 # alphabetically by architecture, generic-gnu last.
  98 all_platforms="${all_platforms} armv5te-android-gcc"
  99 all_platforms="${all_platforms} armv5te-linux-rvct"
 100 all_platforms="${all_platforms} armv5te-linux-gcc"
 101 all_platforms="${all_platforms} armv5te-none-rvct"
 102 all_platforms="${all_platforms} armv6-darwin-gcc"
 103 all_platforms="${all_platforms} armv6-linux-rvct"
 104 all_platforms="${all_platforms} armv6-linux-gcc"
 105 all_platforms="${all_platforms} armv6-none-rvct"
 106 all_platforms="${all_platforms} arm64-darwin-gcc"
 107 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 111 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 112 all_platforms="${all_platforms} armv7-win32-vs11"
 113 all_platforms="${all_platforms} armv7-win32-vs12"
 114 all_platforms="${all_platforms} armv7s-darwin-gcc"
 115 all_platforms="${all_platforms} mips32-linux-gcc"
 116 all_platforms="${all_platforms} mips64-linux-gcc"
 117 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 118 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 119 all_platforms="${all_platforms} ppc32-linux-gcc"
 120 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 121 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 122 all_platforms="${all_platforms} ppc64-linux-gcc"
 123 all_platforms="${all_platforms} sparc-solaris-gcc"
 124 all_platforms="${all_platforms} x86-android-gcc"
 125 all_platforms="${all_platforms} x86-darwin8-gcc"
 126 all_platforms="${all_platforms} x86-darwin8-icc"
 127 all_platforms="${all_platforms} x86-darwin9-gcc"
 128 all_platforms="${all_platforms} x86-darwin9-icc"
 129 all_platforms="${all_platforms} x86-darwin10-gcc"
 130 all_platforms="${all_platforms} x86-darwin11-gcc"
 131 all_platforms="${all_platforms} x86-darwin12-gcc"
 132 all_platforms="${all_platforms} x86-darwin13-gcc"
 133 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 134 all_platforms="${all_platforms} x86-linux-gcc"
 135 all_platforms="${all_platforms} x86-linux-icc"
 136 all_platforms="${all_platforms} x86-os2-gcc"
 137 all_platforms="${all_platforms} x86-solaris-gcc"
 138 all_platforms="${all_platforms} x86-win32-gcc"
 139 all_platforms="${all_platforms} x86-win32-vs7"
 140 all_platforms="${all_platforms} x86-win32-vs8"
 141 all_platforms="${all_platforms} x86-win32-vs9"
 142 all_platforms="${all_platforms} x86-win32-vs10"
 143 all_platforms="${all_platforms} x86-win32-vs11"
 144 all_platforms="${all_platforms} x86-win32-vs12"
 145 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 150 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 151 all_platforms="${all_platforms} x86_64-linux-gcc"
 152 all_platforms="${all_platforms} x86_64-linux-icc"
 153 all_platforms="${all_platforms} x86_64-solaris-gcc"
 154 all_platforms="${all_platforms} x86_64-win64-gcc"
 155 all_platforms="${all_platforms} x86_64-win64-vs8"
 156 all_platforms="${all_platforms} x86_64-win64-vs9"
 157 all_platforms="${all_platforms} x86_64-win64-vs10"
 158 all_platforms="${all_platforms} x86_64-win64-vs11"
 159 all_platforms="${all_platforms} x86_64-win64-vs12"
 160 all_platforms="${all_platforms} universal-darwin8-gcc"
 161 all_platforms="${all_platforms} universal-darwin9-gcc"
 162 all_platforms="${all_platforms} universal-darwin10-gcc"
 163 all_platforms="${all_platforms} universal-darwin11-gcc"
 164 all_platforms="${all_platforms} universal-darwin12-gcc"
 165 all_platforms="${all_platforms} universal-darwin13-gcc"
 166 all_platforms="${all_platforms} generic-gnu"
 167
 168 # all_targets is a list of all targets that can be configured
 169 # note that these should be in dependency order for now.
 170 all_targets="libs examples docs"
 171
 172 # all targets available are enabled, by default.
 173 for t in ${all_targets}; do
 174     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 175 done
 176
 177 if ! perl --version >/dev/null; then
 178     die "Perl is required to build"
 179 fi
 180
 181
 182 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 183   # test to see if source_path already configured
 184   if [ -f "${source_path}/vpx_config.h" ]; then
 185     die "source directory already configured; run 'make distclean' there first"
 186   fi
 187 fi
 188
 189 # check installed doxygen version
 190 doxy_version=$(doxygen --version 2>/dev/null)
 191 doxy_major=${doxy_version%%.*}
 192 if [ ${doxy_major:-0} -ge 1 ]; then
 193     doxy_version=${doxy_version#*.}
 194     doxy_minor=${doxy_version%%.*}
 195     doxy_patch=${doxy_version##*.}
 196
 197     [ $doxy_major -gt 1 ] && enable_feature doxygen
 198     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 199     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 200 fi
 201
 202 # install everything except the sources, by default. sources will have
 203 # to be enabled when doing dist builds, since that's no longer a common
 204 # case.
 205 enabled doxygen && enable_feature install_docs
 206 enable_feature install_bins
 207 enable_feature install_libs
 208
 209 enable_feature static
 210 enable_feature optimizations
 211 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 212 enable_feature spatial_resampling
 213 enable_feature multithread
 214 enable_feature os_support
 215 enable_feature temporal_denoising
 216
 217 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 218 for d in vp8 vp9; do
 219     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 220 done
 221
 222 if ! enabled alt_tree_layout; then
 223 # development environment
 224 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 225 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 226 else
 227 # customer environment
 228 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 229 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 230 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 231 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 232 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 233 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 234 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 235 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 236
 237 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 238 fi
 239
 240 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 241 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 242
 243 ARCH_LIST="
 244     arm
 245     mips
 246     x86
 247     x86_64
 248     ppc32
 249     ppc64
 250 "
 251 ARCH_EXT_LIST="
 252     edsp
 253     media
 254     neon
 255     neon_asm
 256
 257     mips32
 258     dspr2
 259
 260     mips64
 261
 262     mmx
 263     sse
 264     sse2
 265     sse3
 266     ssse3
 267     sse4_1
 268     avx
 269     avx2
 270
 271     altivec
 272 "
 273 HAVE_LIST="
 274     ${ARCH_EXT_LIST}
 275     vpx_ports
 276     stdint_h
 277     alt_tree_layout
 278     pthread_h
 279     sys_mman_h
 280     unistd_h
 281 "
 282 EXPERIMENT_LIST="
 283     spatial_svc
 284     fp_mb_stats
 285     emulate_hardware
 286 "
 287 CONFIG_LIST="
 288     external_build
 289     install_docs
 290     install_bins
 291     install_libs
 292     install_srcs
 293     use_x86inc
 294     debug
 295     gprof
 296     gcov
 297     rvct
 298     gcc
 299     msvs
 300     pic
 301     big_endian
 302
 303     codec_srcs
 304     debug_libs
 305     fast_unaligned
 306     mem_manager
 307     mem_tracker
 308     mem_checks
 309
 310     dequant_tokens
 311     dc_recon
 312     runtime_cpu_detect
 313     postproc
 314     vp9_postproc
 315     multithread
 316     internal_stats
 317     ${CODECS}
 318     ${CODEC_FAMILIES}
 319     encoders
 320     decoders
 321     static_msvcrt
 322     spatial_resampling
 323     realtime_only
 324     onthefly_bitpacking
 325     error_concealment
 326     shared
 327     static
 328     small
 329     postproc_visualizer
 330     os_support
 331     unit_tests
 332     webm_io
 333     libyuv
 334     decode_perf_tests
 335     encode_perf_tests
 336     multi_res_encoding
 337     temporal_denoising
 338     vp9_temporal_denoising
 339     coefficient_range_checking
 340     vp9_highbitdepth
 341     experimental
 342     size_limit
 343     ${EXPERIMENT_LIST}
 344 "
 345 CMDLINE_SELECT="
 346     external_build
 347     extra_warnings
 348     werror
 349     install_docs
 350     install_bins
 351     install_libs
 352     install_srcs
 353     debug
 354     gprof
 355     gcov
 356     pic
 357     use_x86inc
 358     optimizations
 359     ccache
 360     runtime_cpu_detect
 361     thumb
 362
 363     libs
 364     examples
 365     docs
 366     libc
 367     as
 368     size_limit
 369     fast_unaligned
 370     codec_srcs
 371     debug_libs
 372
 373     dequant_tokens
 374     dc_recon
 375     postproc
 376     vp9_postproc
 377     multithread
 378     internal_stats
 379     ${CODECS}
 380     ${CODEC_FAMILIES}
 381     static_msvcrt
 382     mem_tracker
 383     spatial_resampling
 384     realtime_only
 385     onthefly_bitpacking
 386     error_concealment
 387     shared
 388     static
 389     small
 390     postproc_visualizer
 391     unit_tests
 392     webm_io
 393     libyuv
 394     decode_perf_tests
 395     encode_perf_tests
 396     multi_res_encoding
 397     temporal_denoising
 398     vp9_temporal_denoising
 399     coefficient_range_checking
 400     vp9_highbitdepth
 401     experimental
 402 "
 403
 404 process_cmdline() {
 405     for opt do
 406         optval="${opt#*=}"
 407         case "$opt" in
 408         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 409         --enable-?*|--disable-?*)
 410         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 411         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 412             if enabled experimental; then
 413                 ${action}_feature $option
 414             else
 415                 log_echo "Ignoring $opt -- not in experimental mode."
 416             fi
 417         else
 418             process_common_cmdline $opt
 419         fi
 420         ;;
 421         *) process_common_cmdline "$opt"
 422         ;;
 423         esac
 424     done
 425 }
 426
 427 post_process_cmdline() {
 428     c=""
 429
 430     # If the codec family is disabled, disable all components of that family.
 431     # If the codec family is enabled, enable all components of that family.
 432     log_echo "Configuring selected codecs"
 433     for c in ${CODECS}; do
 434         disabled ${c%%_*} && disable_feature ${c}
 435         enabled ${c%%_*} && enable_feature ${c}
 436     done
 437
 438     # Enable all detected codecs, if they haven't been disabled
 439     for c in ${CODECS}; do soft_enable $c; done
 440
 441     # Enable the codec family if any component of that family is enabled
 442     for c in ${CODECS}; do
 443         enabled $c && enable_feature ${c%_*}
 444     done
 445
 446     # Set the {en,de}coders variable if any algorithm in that class is enabled
 447     for c in ${CODECS}; do
 448         enabled ${c} && enable_feature ${c##*_}s
 449     done
 450 }
 451
 452
 453 process_targets() {
 454     enabled child || write_common_config_banner
 455     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 456
 457     # For fat binaries, call configure recursively to configure for each
 458     # binary architecture to be included.
 459     if enabled universal; then
 460         # Call configure (ourselves) for each subarchitecture
 461         for arch in $fat_bin_archs; do
 462             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 463         done
 464     fi
 465
 466     # The write_common_config (config.mk) logic is deferred until after the
 467     # recursive calls to configure complete, because we want our universal
 468     # targets to be executed last.
 469     write_common_config_targets
 470     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 471
 472     # Calculate the default distribution name, based on the enabled features
 473     cf=""
 474     DIST_DIR=vpx
 475     for cf in $CODEC_FAMILIES; do
 476         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 477             DIST_DIR="${DIST_DIR}-${cf}"
 478         elif enabled ${cf}_encoder; then
 479             DIST_DIR="${DIST_DIR}-${cf}cx"
 480         elif enabled ${cf}_decoder; then
 481             DIST_DIR="${DIST_DIR}-${cf}dx"
 482         fi
 483     done
 484     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 485     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 486     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 487     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 488     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 489     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 490     case "${tgt_os}" in
 491     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 492           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 493           ;;
 494     esac
 495     if [ -f "${source_path}/build/make/version.sh" ]; then
 496         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 497         DIST_DIR="${DIST_DIR}-${ver}"
 498         VERSION_STRING=${ver}
 499         ver=${ver%%-*}
 500         VERSION_PATCH=${ver##*.}
 501         ver=${ver%.*}
 502         VERSION_MINOR=${ver##*.}
 503         ver=${ver#v}
 504         VERSION_MAJOR=${ver%.*}
 505     fi
 506     enabled child || cat <<EOF >> config.mk
 507
 508 PREFIX=${prefix}
 509 ifeq (\$(MAKECMDGOALS),dist)
 510 DIST_DIR?=${DIST_DIR}
 511 else
 512 DIST_DIR?=\$(DESTDIR)${prefix}
 513 endif
 514 LIBSUBDIR=${libdir##${prefix}/}
 515
 516 VERSION_STRING=${VERSION_STRING}
 517
 518 VERSION_MAJOR=${VERSION_MAJOR}
 519 VERSION_MINOR=${VERSION_MINOR}
 520 VERSION_PATCH=${VERSION_PATCH}
 521
 522 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 523 EOF
 524     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 525
 526     #
 527     # Write makefiles for all enabled targets
 528     #
 529     for tgt in libs examples docs solution; do
 530         tgt_fn="$tgt-$toolchain.mk"
 531
 532         if enabled $tgt; then
 533             echo "Creating makefiles for ${toolchain} ${tgt}"
 534             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 535             #write_${tgt}_config
 536         fi
 537     done
 538
 539 }
 540
 541 process_detect() {
 542     if enabled shared; then
 543         # Can only build shared libs on a subset of platforms. Doing this check
 544         # here rather than at option parse time because the target auto-detect
 545         # magic happens after the command line has been parsed.
 546         if ! enabled linux; then
 547             if enabled gnu; then
 548                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 549             else
 550                 die "--enable-shared only supported on ELF for now"
 551             fi
 552         fi
 553     fi
 554     if [ -z "$CC" ] || enabled external_build; then
 555         echo "Bypassing toolchain for environment detection."
 556         enable_feature external_build
 557         check_header() {
 558             log fake_check_header "$@"
 559             header=$1
 560             shift
 561             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 562             disable_feature $var
 563             # Headers common to all environments
 564             case $header in
 565                 stdio.h)
 566                     true;
 567                 ;;
 568                 *)
 569                     result=false
 570                     for d in "$@"; do
 571                         [ -f "${d##-I}/$header" ] && result=true && break
 572                     done
 573                     ${result:-true}
 574             esac && enable_feature $var
 575
 576             # Specialize windows and POSIX environments.
 577             case $toolchain in
 578                 *-win*-*)
 579                     case $header-$toolchain in
 580                         stdint*-gcc) true;;
 581                         *) false;;
 582                     esac && enable_feature $var
 583                     ;;
 584                 *)
 585                     case $header in
 586                         stdint.h) true;;
 587                         pthread.h) true;;
 588                         sys/mman.h) true;;
 589                         unistd.h) true;;
 590                         *) false;;
 591                     esac && enable_feature $var
 592             esac
 593             enabled $var
 594         }
 595         check_ld() {
 596             true
 597         }
 598     fi
 599     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 600     check_ld <<EOF || die "Toolchain is unable to link executables"
 601 int main(void) {return 0;}
 602 EOF
 603     # check system headers
 604     check_header stdint.h
 605     check_header pthread.h
 606     check_header sys/mman.h
 607     check_header unistd.h # for sysconf(3) and friends.
 608
 609     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 610 }
 611
 612 process_toolchain() {
 613     process_common_toolchain
 614
 615     # Handle universal binaries for this architecture
 616     case $toolchain in
 617         universal-darwin*)
 618             darwin_ver=${tgt_os##darwin}
 619
 620             # Snow Leopard (10.6/darwin10) dropped support for PPC
 621             # Include PPC support for all prior versions
 622             if [ $darwin_ver -lt 10 ]; then
 623                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 624             fi
 625
 626             # Tiger (10.4/darwin8) brought support for x86
 627             if [ $darwin_ver -ge 8 ]; then
 628                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 629             fi
 630
 631             # Leopard (10.5/darwin9) brought 64 bit support
 632             if [ $darwin_ver -ge 9 ]; then
 633                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 634             fi
 635             ;;
 636     esac
 637
 638
 639     # Enable some useful compiler flags
 640     if enabled gcc; then
 641         enabled werror && check_add_cflags -Werror
 642         check_add_cflags -Wall
 643         check_add_cflags -Wdeclaration-after-statement
 644         check_add_cflags -Wdisabled-optimization
 645         check_add_cflags -Wpointer-arith
 646         check_add_cflags -Wtype-limits
 647         check_add_cflags -Wcast-qual
 648         check_add_cflags -Wvla
 649         check_add_cflags -Wimplicit-function-declaration
 650         check_add_cflags -Wuninitialized
 651         check_add_cflags -Wunused-variable
 652         case ${CC} in
 653           *clang*)
 654               # libvpx and/or clang have issues with aliasing:
 655               # https://code.google.com/p/webm/issues/detail?id=603
 656               # work around them until they are fixed
 657               check_add_cflags -fno-strict-aliasing
 658           ;;
 659           *) check_add_cflags -Wunused-but-set-variable ;;
 660         esac
 661         enabled extra_warnings || check_add_cflags -Wno-unused-function
 662     fi
 663
 664     if enabled icc; then
 665         enabled werror && check_add_cflags -Werror
 666         check_add_cflags -Wall
 667         check_add_cflags -Wpointer-arith
 668
 669         # ICC has a number of floating point optimizations that we disable
 670         # in favor of deterministic output WRT to other compilers
 671         add_cflags -fp-model precise
 672     fi
 673
 674     # Enable extra, harmless warnings. These might provide additional insight
 675     # to what the compiler is doing and why, but in general, but they shouldn't
 676     # be treated as fatal, even if we're treating warnings as errors.
 677     GCC_EXTRA_WARNINGS="
 678         -Wdisabled-optimization
 679         -Winline
 680     "
 681     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 682     RVCT_EXTRA_WARNINGS="
 683         --remarks
 684     "
 685     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 686     if enabled extra_warnings; then
 687         for w in ${EXTRA_WARNINGS}; do
 688             check_add_cflags ${w}
 689             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 690         done
 691     fi
 692
 693     # ccache only really works on gcc toolchains
 694     enabled gcc || soft_disable ccache
 695     if enabled mips; then
 696         enable_feature dequant_tokens
 697         enable_feature dc_recon
 698     fi
 699
 700     if enabled internal_stats; then
 701         enable_feature vp9_postproc
 702     fi
 703
 704     # Enable the postbuild target if building for visual studio.
 705     case "$tgt_cc" in
 706         vs*) enable_feature msvs
 707              enable_feature solution
 708              vs_version=${tgt_cc##vs}
 709              case $vs_version in
 710              [789])
 711                  VCPROJ_SFX=vcproj
 712                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 713                  ;;
 714              10|11|12)
 715                  VCPROJ_SFX=vcxproj
 716                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 717                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 718                  ;;
 719              esac
 720              all_targets="${all_targets} solution"
 721              INLINE="__forceinline"
 722         ;;
 723     esac
 724
 725     # Other toolchain specific defaults
 726     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 727
 728     if enabled postproc_visualizer; then
 729         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 730     fi
 731
 732     # Enable unit tests by default if we have a working C++ compiler.
 733     case "$toolchain" in
 734         *-vs*)
 735             soft_enable unit_tests
 736             soft_enable webm_io
 737             soft_enable libyuv
 738         ;;
 739         *-android-*)
 740             soft_enable webm_io
 741             soft_enable libyuv
 742             # GTestLog must be modified to use Android logging utilities.
 743         ;;
 744         *-darwin-*)
 745             # iOS/ARM builds do not work with gtest. This does not match
 746             # x86 targets.
 747         ;;
 748         *-iphonesimulator-*)
 749             soft_enable webm_io
 750             soft_enable libyuv
 751         ;;
 752         *-win*)
 753             # Some mingw toolchains don't have pthread available by default.
 754             # Treat these more like visual studio where threading in gtest
 755             # would be disabled for the same reason.
 756             check_cxx "$@" <<EOF && soft_enable unit_tests
 757 int z;
 758 EOF
 759             check_cxx "$@" <<EOF && soft_enable webm_io
 760 int z;
 761 EOF
 762             check_cxx "$@" <<EOF && soft_enable libyuv
 763 int z;
 764 EOF
 765         ;;
 766         *)
 767             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 768 int z;
 769 EOF
 770             check_cxx "$@" <<EOF && soft_enable webm_io
 771 int z;
 772 EOF
 773             check_cxx "$@" <<EOF && soft_enable libyuv
 774 int z;
 775 EOF
 776         ;;
 777     esac
 778     # libwebm needs to be linked with C++ standard library
 779     enabled webm_io && LD=${CXX}
 780 }
 781
 782
 783 ##
 784 ## END APPLICATION SPECIFIC CONFIGURATION
 785 ##
 786 CONFIGURE_ARGS="$@"
 787 process "$@"
 788 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 789 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 790 static const char* const cfg = "$CONFIGURE_ARGS";
 791 const char *vpx_codec_build_config(void) {return cfg;}
 792 EOF