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   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
  30   --libc=PATH                     path to alternate libc
  31   --size-limit=WxH                max size to allow in the decoder
  32   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  33   --sdk-path=PATH                 path to root of sdk (android builds only)
  34   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  35                                   supported by hardware [auto]
  36   ${toggle_codec_srcs}            in/exclude codec library source code
  37   ${toggle_debug_libs}            in/exclude debug version of libraries
  38   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  39   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
  40   ${toggle_vp8}                   VP8 codec support
  41   ${toggle_vp9}                   VP9 codec support
  42   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  43   ${toggle_mem_tracker}           track memory usage
  44   ${toggle_postproc}              postprocessing
  45   ${toggle_vp9_postproc}          vp9 specific postprocessing
  46   ${toggle_multithread}           multithreaded encoding and decoding
  47   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  48   ${toggle_realtime_only}         enable this option while building for real-time encoding
  49   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  50   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  51   ${toggle_coefficient_range_checking}
  52                                   enable decoder to check if intermediate
  53                                   transform coefficients are in valid range
  54   ${toggle_runtime_cpu_detect}    runtime cpu detection
  55   ${toggle_shared}                shared library support
  56   ${toggle_static}                static library support
  57   ${toggle_small}                 favor smaller size over speed
  58   ${toggle_postproc_visualizer}   macro block / block level visualizers
  59   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  60   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  61   ${toggle_vp9_temporal_denoising}
  62                                   enable vp9 temporal denoising
  63   ${toggle_webm_io}               enable input from and output to WebM container
  64   ${toggle_libyuv}                enable libyuv
  65
  66 Codecs:
  67   Codecs can be selectively enabled or disabled individually, or by family:
  68       --disable-<codec>
  69   is equivalent to:
  70       --disable-<codec>-encoder
  71       --disable-<codec>-decoder
  72
  73   Codecs available in this distribution:
  74 EOF
  75 #restore editor state '
  76
  77     family="";
  78     last_family="";
  79     c="";
  80     str="";
  81     for c in ${CODECS}; do
  82         family=${c%_*}
  83         if [ "${family}" != "${last_family}" ]; then
  84             [ -z "${str}" ] || echo "${str}"
  85             str="$(printf '    %10s:' ${family})"
  86         fi
  87         str="${str} $(printf '%10s' ${c#*_})"
  88         last_family=${family}
  89     done
  90     echo "${str}"
  91     show_help_post
  92 }
  93
  94 ##
  95 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  96 ##
  97
  98 # all_platforms is a list of all supported target platforms. Maintain
  99 # alphabetically by architecture, generic-gnu last.
 100 all_platforms="${all_platforms} armv6-darwin-gcc"
 101 all_platforms="${all_platforms} armv6-linux-rvct"
 102 all_platforms="${all_platforms} armv6-linux-gcc"
 103 all_platforms="${all_platforms} armv6-none-rvct"
 104 all_platforms="${all_platforms} arm64-darwin-gcc"
 105 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 106 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-win32-vs11"
 111 all_platforms="${all_platforms} armv7-win32-vs12"
 112 all_platforms="${all_platforms} armv7s-darwin-gcc"
 113 all_platforms="${all_platforms} mips32-linux-gcc"
 114 all_platforms="${all_platforms} mips64-linux-gcc"
 115 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 116 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 117 all_platforms="${all_platforms} ppc32-linux-gcc"
 118 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 119 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 120 all_platforms="${all_platforms} ppc64-linux-gcc"
 121 all_platforms="${all_platforms} sparc-solaris-gcc"
 122 all_platforms="${all_platforms} x86-android-gcc"
 123 all_platforms="${all_platforms} x86-darwin8-gcc"
 124 all_platforms="${all_platforms} x86-darwin8-icc"
 125 all_platforms="${all_platforms} x86-darwin9-gcc"
 126 all_platforms="${all_platforms} x86-darwin9-icc"
 127 all_platforms="${all_platforms} x86-darwin10-gcc"
 128 all_platforms="${all_platforms} x86-darwin11-gcc"
 129 all_platforms="${all_platforms} x86-darwin12-gcc"
 130 all_platforms="${all_platforms} x86-darwin13-gcc"
 131 all_platforms="${all_platforms} x86-darwin14-gcc"
 132 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 133 all_platforms="${all_platforms} x86-linux-gcc"
 134 all_platforms="${all_platforms} x86-linux-icc"
 135 all_platforms="${all_platforms} x86-os2-gcc"
 136 all_platforms="${all_platforms} x86-solaris-gcc"
 137 all_platforms="${all_platforms} x86-win32-gcc"
 138 all_platforms="${all_platforms} x86-win32-vs7"
 139 all_platforms="${all_platforms} x86-win32-vs8"
 140 all_platforms="${all_platforms} x86-win32-vs9"
 141 all_platforms="${all_platforms} x86-win32-vs10"
 142 all_platforms="${all_platforms} x86-win32-vs11"
 143 all_platforms="${all_platforms} x86-win32-vs12"
 144 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 150 all_platforms="${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} universal-darwin14-gcc"
 167 all_platforms="${all_platforms} generic-gnu"
 168
 169 # all_targets is a list of all targets that can be configured
 170 # note that these should be in dependency order for now.
 171 all_targets="libs examples docs"
 172
 173 # all targets available are enabled, by default.
 174 for t in ${all_targets}; do
 175     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 176 done
 177
 178 if ! perl --version >/dev/null; then
 179     die "Perl is required to build"
 180 fi
 181
 182
 183 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 184   # test to see if source_path already configured
 185   if [ -f "${source_path}/vpx_config.h" ]; then
 186     die "source directory already configured; run 'make distclean' there first"
 187   fi
 188 fi
 189
 190 # check installed doxygen version
 191 doxy_version=$(doxygen --version 2>/dev/null)
 192 doxy_major=${doxy_version%%.*}
 193 if [ ${doxy_major:-0} -ge 1 ]; then
 194     doxy_version=${doxy_version#*.}
 195     doxy_minor=${doxy_version%%.*}
 196     doxy_patch=${doxy_version##*.}
 197
 198     [ $doxy_major -gt 1 ] && enable_feature doxygen
 199     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 200     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 201 fi
 202
 203 # install everything except the sources, by default. sources will have
 204 # to be enabled when doing dist builds, since that's no longer a common
 205 # case.
 206 enabled doxygen && enable_feature install_docs
 207 enable_feature install_bins
 208 enable_feature install_libs
 209
 210 enable_feature static
 211 enable_feature optimizations
 212 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 213 enable_feature spatial_resampling
 214 enable_feature multithread
 215 enable_feature os_support
 216 enable_feature temporal_denoising
 217
 218 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 219 for d in vp8 vp9; do
 220     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 221 done
 222
 223 if ! enabled alt_tree_layout; then
 224 # development environment
 225 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 226 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 227 else
 228 # customer environment
 229 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 230 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 231 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 232 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 233 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 234 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 235 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 236 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 237
 238 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 239 fi
 240
 241 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 242 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 243
 244 ARCH_LIST="
 245     arm
 246     mips
 247     x86
 248     x86_64
 249     ppc32
 250     ppc64
 251 "
 252 ARCH_EXT_LIST="
 253     edsp
 254     media
 255     neon
 256     neon_asm
 257
 258     mips32
 259     dspr2
 260
 261     mips64
 262
 263     mmx
 264     sse
 265     sse2
 266     sse3
 267     ssse3
 268     sse4_1
 269     avx
 270     avx2
 271
 272     altivec
 273 "
 274 HAVE_LIST="
 275     ${ARCH_EXT_LIST}
 276     vpx_ports
 277     stdint_h
 278     alt_tree_layout
 279     pthread_h
 280     sys_mman_h
 281     unistd_h
 282 "
 283 EXPERIMENT_LIST="
 284     spatial_svc
 285     fp_mb_stats
 286     emulate_hardware
 287 "
 288 CONFIG_LIST="
 289     external_build
 290     install_docs
 291     install_bins
 292     install_libs
 293     install_srcs
 294     use_x86inc
 295     debug
 296     gprof
 297     gcov
 298     rvct
 299     gcc
 300     msvs
 301     pic
 302     big_endian
 303
 304     codec_srcs
 305     debug_libs
 306     fast_unaligned
 307     mem_manager
 308     mem_tracker
 309     mem_checks
 310
 311     dequant_tokens
 312     dc_recon
 313     runtime_cpu_detect
 314     postproc
 315     vp9_postproc
 316     multithread
 317     internal_stats
 318     ${CODECS}
 319     ${CODEC_FAMILIES}
 320     encoders
 321     decoders
 322     static_msvcrt
 323     spatial_resampling
 324     realtime_only
 325     onthefly_bitpacking
 326     error_concealment
 327     shared
 328     static
 329     small
 330     postproc_visualizer
 331     os_support
 332     unit_tests
 333     webm_io
 334     libyuv
 335     decode_perf_tests
 336     encode_perf_tests
 337     multi_res_encoding
 338     temporal_denoising
 339     vp9_temporal_denoising
 340     coefficient_range_checking
 341     vp9_highbitdepth
 342     experimental
 343     size_limit
 344     ${EXPERIMENT_LIST}
 345 "
 346 CMDLINE_SELECT="
 347     external_build
 348     extra_warnings
 349     werror
 350     install_docs
 351     install_bins
 352     install_libs
 353     install_srcs
 354     debug
 355     gprof
 356     gcov
 357     pic
 358     use_x86inc
 359     optimizations
 360     ccache
 361     runtime_cpu_detect
 362     thumb
 363
 364     libs
 365     examples
 366     docs
 367     libc
 368     as
 369     size_limit
 370     fast_unaligned
 371     codec_srcs
 372     debug_libs
 373
 374     dequant_tokens
 375     dc_recon
 376     postproc
 377     vp9_postproc
 378     multithread
 379     internal_stats
 380     ${CODECS}
 381     ${CODEC_FAMILIES}
 382     static_msvcrt
 383     mem_tracker
 384     spatial_resampling
 385     realtime_only
 386     onthefly_bitpacking
 387     error_concealment
 388     shared
 389     static
 390     small
 391     postproc_visualizer
 392     unit_tests
 393     webm_io
 394     libyuv
 395     decode_perf_tests
 396     encode_perf_tests
 397     multi_res_encoding
 398     temporal_denoising
 399     vp9_temporal_denoising
 400     coefficient_range_checking
 401     vp9_highbitdepth
 402     experimental
 403 "
 404
 405 process_cmdline() {
 406     for opt do
 407         optval="${opt#*=}"
 408         case "$opt" in
 409         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 410         --enable-?*|--disable-?*)
 411         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 412         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 413             if enabled experimental; then
 414                 ${action}_feature $option
 415             else
 416                 log_echo "Ignoring $opt -- not in experimental mode."
 417             fi
 418         else
 419             process_common_cmdline $opt
 420         fi
 421         ;;
 422         *) process_common_cmdline "$opt"
 423         ;;
 424         esac
 425     done
 426 }
 427
 428 post_process_cmdline() {
 429     c=""
 430
 431     # If the codec family is disabled, disable all components of that family.
 432     # If the codec family is enabled, enable all components of that family.
 433     log_echo "Configuring selected codecs"
 434     for c in ${CODECS}; do
 435         disabled ${c%%_*} && disable_feature ${c}
 436         enabled ${c%%_*} && enable_feature ${c}
 437     done
 438
 439     # Enable all detected codecs, if they haven't been disabled
 440     for c in ${CODECS}; do soft_enable $c; done
 441
 442     # Enable the codec family if any component of that family is enabled
 443     for c in ${CODECS}; do
 444         enabled $c && enable_feature ${c%_*}
 445     done
 446
 447     # Set the {en,de}coders variable if any algorithm in that class is enabled
 448     for c in ${CODECS}; do
 449         enabled ${c} && enable_feature ${c##*_}s
 450     done
 451 }
 452
 453
 454 process_targets() {
 455     enabled child || write_common_config_banner
 456     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 457
 458     # For fat binaries, call configure recursively to configure for each
 459     # binary architecture to be included.
 460     if enabled universal; then
 461         # Call configure (ourselves) for each subarchitecture
 462         for arch in $fat_bin_archs; do
 463             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 464         done
 465     fi
 466
 467     # The write_common_config (config.mk) logic is deferred until after the
 468     # recursive calls to configure complete, because we want our universal
 469     # targets to be executed last.
 470     write_common_config_targets
 471     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 472
 473     # Calculate the default distribution name, based on the enabled features
 474     cf=""
 475     DIST_DIR=vpx
 476     for cf in $CODEC_FAMILIES; do
 477         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 478             DIST_DIR="${DIST_DIR}-${cf}"
 479         elif enabled ${cf}_encoder; then
 480             DIST_DIR="${DIST_DIR}-${cf}cx"
 481         elif enabled ${cf}_decoder; then
 482             DIST_DIR="${DIST_DIR}-${cf}dx"
 483         fi
 484     done
 485     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 486     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 487     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 488     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 489     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 490     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 491     case "${tgt_os}" in
 492     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 493           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 494           ;;
 495     esac
 496     if [ -f "${source_path}/build/make/version.sh" ]; then
 497         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 498         DIST_DIR="${DIST_DIR}-${ver}"
 499         VERSION_STRING=${ver}
 500         ver=${ver%%-*}
 501         VERSION_PATCH=${ver##*.}
 502         ver=${ver%.*}
 503         VERSION_MINOR=${ver##*.}
 504         ver=${ver#v}
 505         VERSION_MAJOR=${ver%.*}
 506     fi
 507     enabled child || cat <<EOF >> config.mk
 508
 509 PREFIX=${prefix}
 510 ifeq (\$(MAKECMDGOALS),dist)
 511 DIST_DIR?=${DIST_DIR}
 512 else
 513 DIST_DIR?=\$(DESTDIR)${prefix}
 514 endif
 515 LIBSUBDIR=${libdir##${prefix}/}
 516
 517 VERSION_STRING=${VERSION_STRING}
 518
 519 VERSION_MAJOR=${VERSION_MAJOR}
 520 VERSION_MINOR=${VERSION_MINOR}
 521 VERSION_PATCH=${VERSION_PATCH}
 522
 523 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 524 EOF
 525     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 526
 527     #
 528     # Write makefiles for all enabled targets
 529     #
 530     for tgt in libs examples docs solution; do
 531         tgt_fn="$tgt-$toolchain.mk"
 532
 533         if enabled $tgt; then
 534             echo "Creating makefiles for ${toolchain} ${tgt}"
 535             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 536             #write_${tgt}_config
 537         fi
 538     done
 539
 540 }
 541
 542 process_detect() {
 543     if enabled shared; then
 544         # Can only build shared libs on a subset of platforms. Doing this check
 545         # here rather than at option parse time because the target auto-detect
 546         # magic happens after the command line has been parsed.
 547         if ! enabled linux; then
 548             if enabled gnu; then
 549                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 550             else
 551                 die "--enable-shared only supported on ELF for now"
 552             fi
 553         fi
 554     fi
 555     if [ -z "$CC" ] || enabled external_build; then
 556         echo "Bypassing toolchain for environment detection."
 557         enable_feature external_build
 558         check_header() {
 559             log fake_check_header "$@"
 560             header=$1
 561             shift
 562             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 563             disable_feature $var
 564             # Headers common to all environments
 565             case $header in
 566                 stdio.h)
 567                     true;
 568                 ;;
 569                 *)
 570                     result=false
 571                     for d in "$@"; do
 572                         [ -f "${d##-I}/$header" ] && result=true && break
 573                     done
 574                     ${result:-true}
 575             esac && enable_feature $var
 576
 577             # Specialize windows and POSIX environments.
 578             case $toolchain in
 579                 *-win*-*)
 580                     case $header-$toolchain in
 581                         stdint*-gcc) true;;
 582                         *) false;;
 583                     esac && enable_feature $var
 584                     ;;
 585                 *)
 586                     case $header in
 587                         stdint.h) true;;
 588                         pthread.h) true;;
 589                         sys/mman.h) true;;
 590                         unistd.h) true;;
 591                         *) false;;
 592                     esac && enable_feature $var
 593             esac
 594             enabled $var
 595         }
 596         check_ld() {
 597             true
 598         }
 599     fi
 600     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 601     check_ld <<EOF || die "Toolchain is unable to link executables"
 602 int main(void) {return 0;}
 603 EOF
 604     # check system headers
 605     check_header stdint.h
 606     check_header pthread.h
 607     check_header sys/mman.h
 608     check_header unistd.h # for sysconf(3) and friends.
 609
 610     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 611 }
 612
 613 process_toolchain() {
 614     process_common_toolchain
 615
 616     # Handle universal binaries for this architecture
 617     case $toolchain in
 618         universal-darwin*)
 619             darwin_ver=${tgt_os##darwin}
 620
 621             # Snow Leopard (10.6/darwin10) dropped support for PPC
 622             # Include PPC support for all prior versions
 623             if [ $darwin_ver -lt 10 ]; then
 624                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 625             fi
 626
 627             # Tiger (10.4/darwin8) brought support for x86
 628             if [ $darwin_ver -ge 8 ]; then
 629                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 630             fi
 631
 632             # Leopard (10.5/darwin9) brought 64 bit support
 633             if [ $darwin_ver -ge 9 ]; then
 634                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 635             fi
 636             ;;
 637     esac
 638
 639
 640     # Enable some useful compiler flags
 641     if enabled gcc; then
 642         enabled werror && check_add_cflags -Werror
 643         check_add_cflags -Wall
 644         check_add_cflags -Wdeclaration-after-statement
 645         check_add_cflags -Wdisabled-optimization
 646         check_add_cflags -Wpointer-arith
 647         check_add_cflags -Wtype-limits
 648         check_add_cflags -Wcast-qual
 649         check_add_cflags -Wvla
 650         check_add_cflags -Wimplicit-function-declaration
 651         check_add_cflags -Wuninitialized
 652         check_add_cflags -Wunused-variable
 653         case ${CC} in
 654           *clang*)
 655               # libvpx and/or clang have issues with aliasing:
 656               # https://code.google.com/p/webm/issues/detail?id=603
 657               # work around them until they are fixed
 658               check_add_cflags -fno-strict-aliasing
 659           ;;
 660           *) check_add_cflags -Wunused-but-set-variable ;;
 661         esac
 662         enabled extra_warnings || check_add_cflags -Wno-unused-function
 663     fi
 664
 665     if enabled icc; then
 666         enabled werror && check_add_cflags -Werror
 667         check_add_cflags -Wall
 668         check_add_cflags -Wpointer-arith
 669
 670         # ICC has a number of floating point optimizations that we disable
 671         # in favor of deterministic output WRT to other compilers
 672         add_cflags -fp-model precise
 673     fi
 674
 675     # Enable extra, harmless warnings. These might provide additional insight
 676     # to what the compiler is doing and why, but in general, but they shouldn't
 677     # be treated as fatal, even if we're treating warnings as errors.
 678     GCC_EXTRA_WARNINGS="
 679         -Wdisabled-optimization
 680         -Winline
 681     "
 682     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 683     RVCT_EXTRA_WARNINGS="
 684         --remarks
 685     "
 686     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 687     if enabled extra_warnings; then
 688         for w in ${EXTRA_WARNINGS}; do
 689             check_add_cflags ${w}
 690             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 691         done
 692     fi
 693
 694     # ccache only really works on gcc toolchains
 695     enabled gcc || soft_disable ccache
 696     if enabled mips; then
 697         enable_feature dequant_tokens
 698         enable_feature dc_recon
 699     fi
 700
 701     if enabled internal_stats; then
 702         enable_feature vp9_postproc
 703     fi
 704
 705     # Enable the postbuild target if building for visual studio.
 706     case "$tgt_cc" in
 707         vs*) enable_feature msvs
 708              enable_feature solution
 709              vs_version=${tgt_cc##vs}
 710              case $vs_version in
 711              [789])
 712                  VCPROJ_SFX=vcproj
 713                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 714                  ;;
 715              10|11|12)
 716                  VCPROJ_SFX=vcxproj
 717                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 718                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 719                  ;;
 720              esac
 721              all_targets="${all_targets} solution"
 722              INLINE="__forceinline"
 723         ;;
 724     esac
 725
 726     # Other toolchain specific defaults
 727     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 728
 729     if enabled postproc_visualizer; then
 730         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 731     fi
 732
 733     # Enable unit tests by default if we have a working C++ compiler.
 734     case "$toolchain" in
 735         *-vs*)
 736             soft_enable unit_tests
 737             soft_enable webm_io
 738             soft_enable libyuv
 739         ;;
 740         *-android-*)
 741             soft_enable webm_io
 742             soft_enable libyuv
 743             # GTestLog must be modified to use Android logging utilities.
 744         ;;
 745         *-darwin-*)
 746             # iOS/ARM builds do not work with gtest. This does not match
 747             # x86 targets.
 748         ;;
 749         *-iphonesimulator-*)
 750             soft_enable webm_io
 751             soft_enable libyuv
 752         ;;
 753         *-win*)
 754             # Some mingw toolchains don't have pthread available by default.
 755             # Treat these more like visual studio where threading in gtest
 756             # would be disabled for the same reason.
 757             check_cxx "$@" <<EOF && soft_enable unit_tests
 758 int z;
 759 EOF
 760             check_cxx "$@" <<EOF && soft_enable webm_io
 761 int z;
 762 EOF
 763             check_cxx "$@" <<EOF && soft_enable libyuv
 764 int z;
 765 EOF
 766         ;;
 767         *)
 768             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 769 int z;
 770 EOF
 771             check_cxx "$@" <<EOF && soft_enable webm_io
 772 int z;
 773 EOF
 774             check_cxx "$@" <<EOF && soft_enable libyuv
 775 int z;
 776 EOF
 777         ;;
 778     esac
 779     # libwebm needs to be linked with C++ standard library
 780     enabled webm_io && LD=${CXX}
 781 }
 782
 783
 784 ##
 785 ## END APPLICATION SPECIFIC CONFIGURATION
 786 ##
 787 CONFIGURE_ARGS="$@"
 788 process "$@"
 789 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 790 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 791 static const char* const cfg = "$CONFIGURE_ARGS";
 792 const char *vpx_codec_build_config(void) {return cfg;}
 793 EOF