configure

   1 #!/bin/bash
   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}                  don't build libraries
  24   ${toggle_examples}              don't build examples
  25   ${toggle_unit_tests}            build unit tests
  26   --libc=PATH                     path to alternate libc
  27   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  28   --sdk-path=PATH                 path to root of sdk (iOS, android builds only)
  29   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  30                                   supported by hardware [auto]
  31   ${toggle_codec_srcs}            in/exclude codec library source code
  32   ${toggle_debug_libs}            in/exclude debug version of libraries
  33   ${toggle_md5}                   support for output of checksum data
  34   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  35   ${toggle_vp8}                   VP8 codec support
  36   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  37   ${toggle_mem_tracker}           track memory usage
  38   ${toggle_postproc}              postprocessing
  39   ${toggle_multithread}           multithreaded encoding and decoding
  40   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  41   ${toggle_realtime_only}         enable this option while building for real-time encoding
  42   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  43   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  44   ${toggle_runtime_cpu_detect}    runtime cpu detection
  45   ${toggle_shared}                shared library support
  46   ${toggle_static}                static library support
  47   ${toggle_small}                 favor smaller size over speed
  48   ${toggle_postproc_visualizer}   macro block / block level visualizers
  49   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  50   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  51
  52 Codecs:
  53   Codecs can be selectively enabled or disabled individually, or by family:
  54       --disable-<codec>
  55   is equivalent to:
  56       --disable-<codec>-encoder
  57       --disable-<codec>-decoder
  58
  59   Codecs available in this distribution:
  60 EOF
  61 #restore editor state '
  62
  63     local family;
  64     local last_family;
  65     local c;
  66     local str;
  67     for c in ${CODECS}; do
  68         family=${c%_*}
  69         if [ "${family}" != "${last_family}" ]; then
  70             [ -z "${str}" ] || echo "${str}"
  71             str="$(printf '    %10s:' ${family})"
  72         fi
  73         str="${str} $(printf '%10s' ${c#*_})"
  74         last_family=${family}
  75     done
  76     echo "${str}"
  77     show_help_post
  78 }
  79
  80 ##
  81 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  82 ##
  83
  84 # all_platforms is a list of all supported target platforms. Maintain
  85 # alphabetically by architecture, generic-gnu last.
  86 all_platforms="${all_platforms} armv5te-android-gcc"
  87 all_platforms="${all_platforms} armv5te-linux-rvct"
  88 all_platforms="${all_platforms} armv5te-linux-gcc"
  89 all_platforms="${all_platforms} armv5te-none-rvct"
  90 all_platforms="${all_platforms} armv6-darwin-gcc"
  91 all_platforms="${all_platforms} armv6-linux-rvct"
  92 all_platforms="${all_platforms} armv6-linux-gcc"
  93 all_platforms="${all_platforms} armv6-none-rvct"
  94 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
  95 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  96 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  99 all_platforms="${all_platforms} mips32-linux-gcc"
 100 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 101 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 102 all_platforms="${all_platforms} ppc32-linux-gcc"
 103 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 104 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 105 all_platforms="${all_platforms} ppc64-linux-gcc"
 106 all_platforms="${all_platforms} sparc-solaris-gcc"
 107 all_platforms="${all_platforms} x86-darwin8-gcc"
 108 all_platforms="${all_platforms} x86-darwin8-icc"
 109 all_platforms="${all_platforms} x86-darwin9-gcc"
 110 all_platforms="${all_platforms} x86-darwin9-icc"
 111 all_platforms="${all_platforms} x86-darwin10-gcc"
 112 all_platforms="${all_platforms} x86-darwin11-gcc"
 113 all_platforms="${all_platforms} x86-darwin12-gcc"
 114 all_platforms="${all_platforms} x86-linux-gcc"
 115 all_platforms="${all_platforms} x86-linux-icc"
 116 all_platforms="${all_platforms} x86-os2-gcc"
 117 all_platforms="${all_platforms} x86-solaris-gcc"
 118 all_platforms="${all_platforms} x86-win32-gcc"
 119 all_platforms="${all_platforms} x86-win32-vs7"
 120 all_platforms="${all_platforms} x86-win32-vs8"
 121 all_platforms="${all_platforms} x86-win32-vs9"
 122 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 123 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 124 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 125 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 126 all_platforms="${all_platforms} x86_64-linux-gcc"
 127 all_platforms="${all_platforms} x86_64-linux-icc"
 128 all_platforms="${all_platforms} x86_64-solaris-gcc"
 129 all_platforms="${all_platforms} x86_64-win64-gcc"
 130 all_platforms="${all_platforms} x86_64-win64-vs8"
 131 all_platforms="${all_platforms} x86_64-win64-vs9"
 132 all_platforms="${all_platforms} universal-darwin8-gcc"
 133 all_platforms="${all_platforms} universal-darwin9-gcc"
 134 all_platforms="${all_platforms} universal-darwin10-gcc"
 135 all_platforms="${all_platforms} universal-darwin11-gcc"
 136 all_platforms="${all_platforms} universal-darwin12-gcc"
 137 all_platforms="${all_platforms} generic-gnu"
 138
 139 # all_targets is a list of all targets that can be configured
 140 # note that these should be in dependency order for now.
 141 all_targets="libs examples docs"
 142
 143 # all targets available are enabled, by default.
 144 for t in ${all_targets}; do
 145     [ -f ${source_path}/${t}.mk ] && enable ${t}
 146 done
 147
 148 # check installed doxygen version
 149 doxy_version=$(doxygen --version 2>/dev/null)
 150 doxy_major=${doxy_version%%.*}
 151 if [ ${doxy_major:-0} -ge 1 ]; then
 152     doxy_version=${doxy_version#*.}
 153     doxy_minor=${doxy_version%%.*}
 154     doxy_patch=${doxy_version##*.}
 155
 156     [ $doxy_major -gt 1 ] && enable doxygen
 157     [ $doxy_minor -gt 5 ] && enable doxygen
 158     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 159 fi
 160
 161 # install everything except the sources, by default. sources will have
 162 # to be enabled when doing dist builds, since that's no longer a common
 163 # case.
 164 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 165 enable install_bins
 166 enable install_libs
 167
 168 enable static
 169 enable optimizations
 170 enable fast_unaligned #allow unaligned accesses, if supported by hw
 171 enable md5
 172 enable spatial_resampling
 173 enable multithread
 174 enable os_support
 175 enable temporal_denoising
 176
 177 [ -d ${source_path}/../include ] && enable alt_tree_layout
 178 for d in vp8; do
 179     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 180 done
 181
 182 if ! enabled alt_tree_layout; then
 183 # development environment
 184 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 185 else
 186 # customer environment
 187 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 188 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 189 [ -f ${source_path}/../include/vpx/vp8cx.h ] || disable vp8_encoder
 190 [ -f ${source_path}/../include/vpx/vp8dx.h ] || disable vp8_decoder
 191
 192 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 193 fi
 194
 195 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 196 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 197
 198 ARCH_LIST="
 199     arm
 200     mips
 201     x86
 202     x86_64
 203     ppc32
 204     ppc64
 205 "
 206 ARCH_EXT_LIST="
 207     edsp
 208     media
 209     neon
 210
 211     mips32
 212
 213     mmx
 214     sse
 215     sse2
 216     sse3
 217     ssse3
 218     sse4_1
 219
 220     altivec
 221 "
 222 HAVE_LIST="
 223     ${ARCH_EXT_LIST}
 224     vpx_ports
 225     stdint_h
 226     alt_tree_layout
 227     pthread_h
 228     sys_mman_h
 229     unistd_h
 230 "
 231 CONFIG_LIST="
 232     external_build
 233     install_docs
 234     install_bins
 235     install_libs
 236     install_srcs
 237     debug
 238     gprof
 239     gcov
 240     rvct
 241     gcc
 242     msvs
 243     pic
 244     big_endian
 245
 246     codec_srcs
 247     debug_libs
 248     fast_unaligned
 249     mem_manager
 250     mem_tracker
 251     mem_checks
 252     md5
 253
 254     dequant_tokens
 255     dc_recon
 256     runtime_cpu_detect
 257     postproc
 258     multithread
 259     internal_stats
 260     ${CODECS}
 261     ${CODEC_FAMILIES}
 262     encoders
 263     decoders
 264     static_msvcrt
 265     spatial_resampling
 266     realtime_only
 267     onthefly_bitpacking
 268     error_concealment
 269     shared
 270     static
 271     small
 272     postproc_visualizer
 273     os_support
 274     unit_tests
 275     multi_res_encoding
 276     temporal_denoising
 277 "
 278 CMDLINE_SELECT="
 279     extra_warnings
 280     werror
 281     install_docs
 282     install_bins
 283     install_libs
 284     install_srcs
 285     debug
 286     gprof
 287     gcov
 288     pic
 289     optimizations
 290     ccache
 291     runtime_cpu_detect
 292
 293     libs
 294     examples
 295     libc
 296     as
 297     fast_unaligned
 298     codec_srcs
 299     debug_libs
 300     md5
 301
 302     dequant_tokens
 303     dc_recon
 304     postproc
 305     multithread
 306     internal_stats
 307     ${CODECS}
 308     ${CODEC_FAMILIES}
 309     static_msvcrt
 310     mem_tracker
 311     spatial_resampling
 312     realtime_only
 313     onthefly_bitpacking
 314     error_concealment
 315     shared
 316     static
 317     small
 318     postproc_visualizer
 319     unit_tests
 320     multi_res_encoding
 321     temporal_denoising
 322 "
 323
 324 process_cmdline() {
 325     for opt do
 326         optval="${opt#*=}"
 327         case "$opt" in
 328         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 329         *) process_common_cmdline "$opt"
 330         ;;
 331         esac
 332     done
 333 }
 334
 335 post_process_cmdline() {
 336     local c
 337
 338     # If the codec family is disabled, disable all components of that family.
 339     # If the codec family is enabled, enable all components of that family.
 340     log_echo "Configuring selected codecs"
 341     for c in ${CODECS}; do
 342         disabled ${c%%_*} && disable ${c}
 343         enabled ${c%%_*} && enable ${c}
 344     done
 345
 346     # Enable all detected codecs, if they haven't been disabled
 347     for c in ${CODECS}; do soft_enable $c; done
 348
 349     # Enable the codec family if any component of that family is enabled
 350     for c in ${CODECS}; do
 351         enabled $c && enable ${c%_*}
 352     done
 353
 354     # Set the {en,de}coders variable if any algorithm in that class is enabled
 355     for c in ${CODECS}; do
 356         enabled ${c} && enable ${c##*_}s
 357     done
 358 }
 359
 360
 361 process_targets() {
 362     enabled child || write_common_config_banner
 363     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 364
 365     # TODO: add host tools target (obj_int_extract, etc)
 366
 367     # For fat binaries, call configure recursively to configure for each
 368     # binary architecture to be included.
 369     if enabled universal; then
 370         # Call configure (ourselves) for each subarchitecture
 371         for arch in $fat_bin_archs; do
 372             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 373         done
 374     fi
 375
 376     # The write_common_config (config.mk) logic is deferred until after the
 377     # recursive calls to configure complete, becuase we want our universal
 378     # targets to be executed last.
 379     write_common_config_targets
 380     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 381
 382     # Calculate the default distribution name, based on the enabled features
 383     local cf
 384     local DIST_DIR=vpx
 385     for cf in $CODEC_FAMILIES; do
 386         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 387             DIST_DIR="${DIST_DIR}-${cf}"
 388         elif enabled ${cf}_encoder; then
 389             DIST_DIR="${DIST_DIR}-${cf}cx"
 390         elif enabled ${cf}_decoder; then
 391             DIST_DIR="${DIST_DIR}-${cf}dx"
 392         fi
 393     done
 394     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 395     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 396     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 397     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 398     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 399     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 400     case "${tgt_os}" in
 401     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 402           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 403           ;;
 404     esac
 405     if [ -f "${source_path}/build/make/version.sh" ]; then
 406         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 407         DIST_DIR="${DIST_DIR}-${ver}"
 408         VERSION_STRING=${ver}
 409         ver=${ver%%-*}
 410         VERSION_PATCH=${ver##*.}
 411         ver=${ver%.*}
 412         VERSION_MINOR=${ver##*.}
 413         ver=${ver#v}
 414         VERSION_MAJOR=${ver%.*}
 415     fi
 416     enabled child || cat <<EOF >> config.mk
 417
 418 PREFIX=${prefix}
 419 ifeq (\$(MAKECMDGOALS),dist)
 420 DIST_DIR?=${DIST_DIR}
 421 else
 422 DIST_DIR?=\$(DESTDIR)${prefix}
 423 endif
 424 LIBSUBDIR=${libdir##${prefix}/}
 425
 426 VERSION_STRING=${VERSION_STRING}
 427
 428 VERSION_MAJOR=${VERSION_MAJOR}
 429 VERSION_MINOR=${VERSION_MINOR}
 430 VERSION_PATCH=${VERSION_PATCH}
 431
 432 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 433 EOF
 434     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 435
 436     #
 437     # Write makefiles for all enabled targets
 438     #
 439     for tgt in libs examples docs solution; do
 440         local tgt_fn="$tgt-$toolchain.mk"
 441
 442         if enabled $tgt; then
 443             echo "Creating makefiles for ${toolchain} ${tgt}"
 444             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 445             #write_${tgt}_config
 446         fi
 447     done
 448
 449 }
 450
 451 process_detect() {
 452     if enabled shared; then
 453         # Can only build shared libs on a subset of platforms. Doing this check
 454         # here rather than at option parse time because the target auto-detect
 455         # magic happens after the command line has been parsed.
 456         enabled linux || die "--enable-shared only supported on ELF for now"
 457     fi
 458     if [ -z "$CC" ]; then
 459         echo "Bypassing toolchain for environment detection."
 460         enable external_build
 461         check_header() {
 462             log fake_check_header "$@"
 463             header=$1
 464             shift
 465             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 466             disable $var
 467             case $header in
 468                 stdio.h)
 469                     true;
 470                 ;;
 471                 *)
 472                     local result=false
 473                     for d in "$@"; do
 474                         [ -f "${d##-I}/$header" ] && result=true && break
 475                     done
 476                     ${result:-true}
 477             esac && enable $var
 478         }
 479         check_ld() {
 480             true
 481         }
 482     fi
 483     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 484     check_ld <<EOF || die "Toolchain is unable to link executables"
 485 int main(void) {return 0;}
 486 EOF
 487     # check system headers
 488     check_header stdint.h
 489     check_header pthread.h
 490     check_header sys/mman.h
 491
 492     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 493 }
 494
 495 process_toolchain() {
 496     process_common_toolchain
 497
 498     # Handle universal binaries for this architecture
 499     case $toolchain in
 500         universal-darwin*)
 501             local darwin_ver=${tgt_os##darwin}
 502
 503             # Snow Leopard (10.6/darwin10) dropped support for PPC
 504             # Include PPC support for all prior versions
 505             if [ $darwin_ver -lt 10 ]; then
 506                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 507             fi
 508
 509             # Tiger (10.4/darwin8) brought support for x86
 510             if [ $darwin_ver -ge 8 ]; then
 511                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 512             fi
 513
 514             # Leopard (10.5/darwin9) brought 64 bit support
 515             if [ $darwin_ver -ge 9 ]; then
 516                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 517             fi
 518             ;;
 519     esac
 520
 521
 522     # Enable some useful compiler flags
 523     if enabled gcc; then
 524         enabled werror && check_add_cflags -Werror
 525         check_add_cflags -Wall
 526         check_add_cflags -Wdeclaration-after-statement
 527         check_add_cflags -Wdisabled-optimization
 528         check_add_cflags -Wpointer-arith
 529         check_add_cflags -Wtype-limits
 530         check_add_cflags -Wcast-qual
 531         check_add_cflags -Wimplicit-function-declaration
 532         check_add_cflags -Wuninitialized
 533         check_add_cflags -Wunused-variable
 534         check_add_cflags -Wunused-but-set-variable
 535         enabled extra_warnings || check_add_cflags -Wno-unused-function
 536     fi
 537
 538     if enabled icc; then
 539         enabled werror && check_add_cflags -Werror
 540         check_add_cflags -Wall
 541         check_add_cflags -Wpointer-arith
 542
 543         # ICC has a number of floating point optimizations that we disable
 544         # in favor of deterministic output WRT to other compilers
 545         add_cflags -fp-model precise
 546     fi
 547
 548     # Enable extra, harmless warnings. These might provide additional insight
 549     # to what the compiler is doing and why, but in general, but they shouldn't
 550     # be treated as fatal, even if we're treating warnings as errors.
 551     GCC_EXTRA_WARNINGS="
 552         -Wdisabled-optimization
 553         -Winline
 554     "
 555     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 556     RVCT_EXTRA_WARNINGS="
 557         --remarks
 558     "
 559     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 560     if enabled extra_warnings; then
 561         for w in ${EXTRA_WARNINGS}; do
 562             check_add_cflags ${w}
 563             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 564         done
 565     fi
 566
 567     # ccache only really works on gcc toolchains
 568     enabled gcc || soft_disable ccache
 569     if enabled mips; then
 570         enable dequant_tokens
 571         enable dc_recon
 572     fi
 573
 574     # Enable the postbuild target if building for visual studio.
 575     case "$tgt_cc" in
 576         vs*) enable msvs
 577              enable solution
 578              vs_version=${tgt_cc##vs}
 579              all_targets="${all_targets} solution"
 580         ;;
 581     esac
 582
 583     # Other toolchain specific defaults
 584     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 585
 586     if enabled postproc_visualizer; then
 587         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 588     fi
 589
 590     # Enable unit tests if we have a working C++ compiler
 591     case "$tgt_cc" in
 592         vs*)
 593             soft_enable unit_tests;;
 594         *)
 595             check_cxx "$@" <<EOF && soft_enable unit_tests
 596 int z;
 597 EOF
 598     esac
 599 }
 600
 601
 602 ##
 603 ## END APPLICATION SPECIFIC CONFIGURATION
 604 ##
 605 CONFIGURE_ARGS="$@"
 606 process "$@"
 607 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 608 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 609 static const char* const cfg = "$CONFIGURE_ARGS";
 610 const char *vpx_codec_build_config(void) {return cfg;}
 611 EOF