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     dspr2
 213
 214     mmx
 215     sse
 216     sse2
 217     sse3
 218     ssse3
 219     sse4_1
 220
 221     altivec
 222 "
 223 HAVE_LIST="
 224     ${ARCH_EXT_LIST}
 225     vpx_ports
 226     stdint_h
 227     alt_tree_layout
 228     pthread_h
 229     sys_mman_h
 230     unistd_h
 231 "
 232 CONFIG_LIST="
 233     external_build
 234     install_docs
 235     install_bins
 236     install_libs
 237     install_srcs
 238     debug
 239     gprof
 240     gcov
 241     rvct
 242     gcc
 243     msvs
 244     pic
 245     big_endian
 246
 247     codec_srcs
 248     debug_libs
 249     fast_unaligned
 250     mem_manager
 251     mem_tracker
 252     mem_checks
 253     md5
 254
 255     dequant_tokens
 256     dc_recon
 257     runtime_cpu_detect
 258     postproc
 259     multithread
 260     internal_stats
 261     ${CODECS}
 262     ${CODEC_FAMILIES}
 263     encoders
 264     decoders
 265     static_msvcrt
 266     spatial_resampling
 267     realtime_only
 268     onthefly_bitpacking
 269     error_concealment
 270     shared
 271     static
 272     small
 273     postproc_visualizer
 274     os_support
 275     unit_tests
 276     multi_res_encoding
 277     temporal_denoising
 278 "
 279 CMDLINE_SELECT="
 280     extra_warnings
 281     werror
 282     install_docs
 283     install_bins
 284     install_libs
 285     install_srcs
 286     debug
 287     gprof
 288     gcov
 289     pic
 290     optimizations
 291     ccache
 292     runtime_cpu_detect
 293
 294     libs
 295     examples
 296     libc
 297     as
 298     fast_unaligned
 299     codec_srcs
 300     debug_libs
 301     md5
 302
 303     dequant_tokens
 304     dc_recon
 305     postproc
 306     multithread
 307     internal_stats
 308     ${CODECS}
 309     ${CODEC_FAMILIES}
 310     static_msvcrt
 311     mem_tracker
 312     spatial_resampling
 313     realtime_only
 314     onthefly_bitpacking
 315     error_concealment
 316     shared
 317     static
 318     small
 319     postproc_visualizer
 320     unit_tests
 321     multi_res_encoding
 322     temporal_denoising
 323 "
 324
 325 process_cmdline() {
 326     for opt do
 327         optval="${opt#*=}"
 328         case "$opt" in
 329         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 330         *) process_common_cmdline "$opt"
 331         ;;
 332         esac
 333     done
 334 }
 335
 336 post_process_cmdline() {
 337     local c
 338
 339     # If the codec family is disabled, disable all components of that family.
 340     # If the codec family is enabled, enable all components of that family.
 341     log_echo "Configuring selected codecs"
 342     for c in ${CODECS}; do
 343         disabled ${c%%_*} && disable ${c}
 344         enabled ${c%%_*} && enable ${c}
 345     done
 346
 347     # Enable all detected codecs, if they haven't been disabled
 348     for c in ${CODECS}; do soft_enable $c; done
 349
 350     # Enable the codec family if any component of that family is enabled
 351     for c in ${CODECS}; do
 352         enabled $c && enable ${c%_*}
 353     done
 354
 355     # Set the {en,de}coders variable if any algorithm in that class is enabled
 356     for c in ${CODECS}; do
 357         enabled ${c} && enable ${c##*_}s
 358     done
 359 }
 360
 361
 362 process_targets() {
 363     enabled child || write_common_config_banner
 364     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 365
 366     # TODO: add host tools target (obj_int_extract, etc)
 367
 368     # For fat binaries, call configure recursively to configure for each
 369     # binary architecture to be included.
 370     if enabled universal; then
 371         # Call configure (ourselves) for each subarchitecture
 372         for arch in $fat_bin_archs; do
 373             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 374         done
 375     fi
 376
 377     # The write_common_config (config.mk) logic is deferred until after the
 378     # recursive calls to configure complete, becuase we want our universal
 379     # targets to be executed last.
 380     write_common_config_targets
 381     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 382
 383     # Calculate the default distribution name, based on the enabled features
 384     local cf
 385     local DIST_DIR=vpx
 386     for cf in $CODEC_FAMILIES; do
 387         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 388             DIST_DIR="${DIST_DIR}-${cf}"
 389         elif enabled ${cf}_encoder; then
 390             DIST_DIR="${DIST_DIR}-${cf}cx"
 391         elif enabled ${cf}_decoder; then
 392             DIST_DIR="${DIST_DIR}-${cf}dx"
 393         fi
 394     done
 395     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 396     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 397     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 398     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 399     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 400     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 401     case "${tgt_os}" in
 402     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 403           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 404           ;;
 405     esac
 406     if [ -f "${source_path}/build/make/version.sh" ]; then
 407         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 408         DIST_DIR="${DIST_DIR}-${ver}"
 409         VERSION_STRING=${ver}
 410         ver=${ver%%-*}
 411         VERSION_PATCH=${ver##*.}
 412         ver=${ver%.*}
 413         VERSION_MINOR=${ver##*.}
 414         ver=${ver#v}
 415         VERSION_MAJOR=${ver%.*}
 416     fi
 417     enabled child || cat <<EOF >> config.mk
 418
 419 PREFIX=${prefix}
 420 ifeq (\$(MAKECMDGOALS),dist)
 421 DIST_DIR?=${DIST_DIR}
 422 else
 423 DIST_DIR?=\$(DESTDIR)${prefix}
 424 endif
 425 LIBSUBDIR=${libdir##${prefix}/}
 426
 427 VERSION_STRING=${VERSION_STRING}
 428
 429 VERSION_MAJOR=${VERSION_MAJOR}
 430 VERSION_MINOR=${VERSION_MINOR}
 431 VERSION_PATCH=${VERSION_PATCH}
 432
 433 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 434 EOF
 435     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 436
 437     #
 438     # Write makefiles for all enabled targets
 439     #
 440     for tgt in libs examples docs solution; do
 441         local tgt_fn="$tgt-$toolchain.mk"
 442
 443         if enabled $tgt; then
 444             echo "Creating makefiles for ${toolchain} ${tgt}"
 445             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 446             #write_${tgt}_config
 447         fi
 448     done
 449
 450 }
 451
 452 process_detect() {
 453     if enabled shared; then
 454         # Can only build shared libs on a subset of platforms. Doing this check
 455         # here rather than at option parse time because the target auto-detect
 456         # magic happens after the command line has been parsed.
 457         if ! enabled linux; then
 458             if enabled gnu; then
 459                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 460             else
 461                 die "--enable-shared only supported on ELF for now"
 462             fi
 463         fi
 464     fi
 465     if [ -z "$CC" ]; then
 466         echo "Bypassing toolchain for environment detection."
 467         enable external_build
 468         check_header() {
 469             log fake_check_header "$@"
 470             header=$1
 471             shift
 472             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 473             disable $var
 474             case $header in
 475                 stdio.h)
 476                     true;
 477                 ;;
 478                 *)
 479                     local result=false
 480                     for d in "$@"; do
 481                         [ -f "${d##-I}/$header" ] && result=true && break
 482                     done
 483                     ${result:-true}
 484             esac && enable $var
 485         }
 486         check_ld() {
 487             true
 488         }
 489     fi
 490     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 491     check_ld <<EOF || die "Toolchain is unable to link executables"
 492 int main(void) {return 0;}
 493 EOF
 494     # check system headers
 495     check_header stdint.h
 496     check_header pthread.h
 497     check_header sys/mman.h
 498
 499     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 500 }
 501
 502 process_toolchain() {
 503     process_common_toolchain
 504
 505     # Handle universal binaries for this architecture
 506     case $toolchain in
 507         universal-darwin*)
 508             local darwin_ver=${tgt_os##darwin}
 509
 510             # Snow Leopard (10.6/darwin10) dropped support for PPC
 511             # Include PPC support for all prior versions
 512             if [ $darwin_ver -lt 10 ]; then
 513                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 514             fi
 515
 516             # Tiger (10.4/darwin8) brought support for x86
 517             if [ $darwin_ver -ge 8 ]; then
 518                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 519             fi
 520
 521             # Leopard (10.5/darwin9) brought 64 bit support
 522             if [ $darwin_ver -ge 9 ]; then
 523                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 524             fi
 525             ;;
 526     esac
 527
 528
 529     # Enable some useful compiler flags
 530     if enabled gcc; then
 531         enabled werror && check_add_cflags -Werror
 532         check_add_cflags -Wall
 533         check_add_cflags -Wdeclaration-after-statement
 534         check_add_cflags -Wdisabled-optimization
 535         check_add_cflags -Wpointer-arith
 536         check_add_cflags -Wtype-limits
 537         check_add_cflags -Wcast-qual
 538         check_add_cflags -Wimplicit-function-declaration
 539         check_add_cflags -Wuninitialized
 540         check_add_cflags -Wunused-variable
 541         check_add_cflags -Wunused-but-set-variable
 542         enabled extra_warnings || check_add_cflags -Wno-unused-function
 543     fi
 544
 545     if enabled icc; then
 546         enabled werror && check_add_cflags -Werror
 547         check_add_cflags -Wall
 548         check_add_cflags -Wpointer-arith
 549
 550         # ICC has a number of floating point optimizations that we disable
 551         # in favor of deterministic output WRT to other compilers
 552         add_cflags -fp-model precise
 553     fi
 554
 555     # Enable extra, harmless warnings. These might provide additional insight
 556     # to what the compiler is doing and why, but in general, but they shouldn't
 557     # be treated as fatal, even if we're treating warnings as errors.
 558     GCC_EXTRA_WARNINGS="
 559         -Wdisabled-optimization
 560         -Winline
 561     "
 562     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 563     RVCT_EXTRA_WARNINGS="
 564         --remarks
 565     "
 566     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 567     if enabled extra_warnings; then
 568         for w in ${EXTRA_WARNINGS}; do
 569             check_add_cflags ${w}
 570             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 571         done
 572     fi
 573
 574     # ccache only really works on gcc toolchains
 575     enabled gcc || soft_disable ccache
 576     if enabled mips; then
 577         enable dequant_tokens
 578         enable dc_recon
 579     fi
 580
 581     # Enable the postbuild target if building for visual studio.
 582     case "$tgt_cc" in
 583         vs*) enable msvs
 584              enable solution
 585              vs_version=${tgt_cc##vs}
 586              all_targets="${all_targets} solution"
 587         ;;
 588     esac
 589
 590     # Other toolchain specific defaults
 591     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 592
 593     if enabled postproc_visualizer; then
 594         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 595     fi
 596
 597     # Enable unit tests if we have a working C++ compiler
 598     case "$toolchain" in
 599         *-vs*)
 600             soft_enable unit_tests
 601         ;;
 602         *-android-*)
 603             # GTestLog must be modified to use Android logging utilities.
 604         ;;
 605         *)
 606             check_cxx "$@" <<EOF && soft_enable unit_tests
 607 int z;
 608 EOF
 609         ;;
 610     esac
 611 }
 612
 613
 614 ##
 615 ## END APPLICATION SPECIFIC CONFIGURATION
 616 ##
 617 CONFIGURE_ARGS="$@"
 618 process "$@"
 619 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 620 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 621 static const char* const cfg = "$CONFIGURE_ARGS";
 622 const char *vpx_codec_build_config(void) {return cfg;}
 623 EOF