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   --libc=PATH                     path to alternate libc
  26   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  27   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  28                                   supported by hardware [auto]
  29   ${toggle_codec_srcs}            in/exclude codec library source code
  30   ${toggle_debug_libs}            in/exclude debug version of libraries
  31   ${toggle_md5}                   support for output of checksum data
  32   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  33   ${toggle_vp8}                   VP8 codec support
  34   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  35   ${toggle_mem_tracker}           track memory usage
  36   ${toggle_postproc}              postprocessing
  37   ${toggle_multithread}           multithreaded encoding and decoding.
  38   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  39   ${toggle_realtime_only}         enable this option while building for real-time encoding
  40   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  41   ${toggle_runtime_cpu_detect}    runtime cpu detection
  42   ${toggle_shared}                shared library support
  43   ${toggle_static}                static library support
  44   ${toggle_small}                 favor smaller size over speed
  45   ${toggle_postproc_visualizer}   macro block / block level visualizers
  46
  47 Codecs:
  48   Codecs can be selectively enabled or disabled individually, or by family:
  49       --disable-<codec>
  50   is equivalent to:
  51       --disable-<codec>-encoder
  52       --disable-<codec>-decoder
  53
  54   Codecs available in this distribution:
  55 EOF
  56 #restore editor state '
  57
  58     local family;
  59     local last_family;
  60     local c;
  61     local str;
  62     for c in ${CODECS}; do
  63         family=${c%_*}
  64         if [ "${family}" != "${last_family}" ]; then
  65             [ -z "${str}" ] || echo "${str}"
  66             str="$(printf '    %10s:' ${family})"
  67         fi
  68         str="${str} $(printf '%10s' ${c#*_})"
  69         last_family=${family}
  70     done
  71     echo "${str}"
  72     show_help_post
  73 }
  74
  75 ##
  76 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  77 ##
  78
  79 # all_platforms is a list of all supported target platforms. Maintain
  80 # alphabetically by architecture, generic-gnu last.
  81 all_platforms="${all_platforms} armv5te-linux-rvct"
  82 all_platforms="${all_platforms} armv5te-linux-gcc"
  83 all_platforms="${all_platforms} armv5te-none-rvct"
  84 all_platforms="${all_platforms} armv5te-symbian-gcc"
  85 all_platforms="${all_platforms} armv6-darwin-gcc"
  86 all_platforms="${all_platforms} armv6-linux-rvct"
  87 all_platforms="${all_platforms} armv6-linux-gcc"
  88 all_platforms="${all_platforms} armv6-none-rvct"
  89 all_platforms="${all_platforms} armv6-symbian-gcc"
  90 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  91 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  92 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  93 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  94 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  95 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  96 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  98 all_platforms="${all_platforms} mips32-linux-gcc"
  99 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 100 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 101 all_platforms="${all_platforms} ppc32-linux-gcc"
 102 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 103 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 104 all_platforms="${all_platforms} ppc64-linux-gcc"
 105 all_platforms="${all_platforms} sparc-solaris-gcc"
 106 all_platforms="${all_platforms} x86-darwin8-gcc"
 107 all_platforms="${all_platforms} x86-darwin8-icc"
 108 all_platforms="${all_platforms} x86-darwin9-gcc"
 109 all_platforms="${all_platforms} x86-darwin9-icc"
 110 all_platforms="${all_platforms} x86-darwin10-gcc"
 111 all_platforms="${all_platforms} x86-linux-gcc"
 112 all_platforms="${all_platforms} x86-linux-icc"
 113 all_platforms="${all_platforms} x86-solaris-gcc"
 114 all_platforms="${all_platforms} x86-win32-gcc"
 115 all_platforms="${all_platforms} x86-win32-vs7"
 116 all_platforms="${all_platforms} x86-win32-vs8"
 117 all_platforms="${all_platforms} x86-win32-vs9"
 118 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 119 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 120 all_platforms="${all_platforms} x86_64-linux-gcc"
 121 all_platforms="${all_platforms} x86_64-linux-icc"
 122 all_platforms="${all_platforms} x86_64-solaris-gcc"
 123 all_platforms="${all_platforms} x86_64-win64-vs8"
 124 all_platforms="${all_platforms} x86_64-win64-vs9"
 125 all_platforms="${all_platforms} universal-darwin8-gcc"
 126 all_platforms="${all_platforms} universal-darwin9-gcc"
 127 all_platforms="${all_platforms} generic-gnu"
 128
 129 # all_targets is a list of all targets that can be configured
 130 # note that these should be in dependency order for now.
 131 all_targets="libs examples docs"
 132
 133 # all targets available are enabled, by default.
 134 for t in ${all_targets}; do
 135     [ -f ${source_path}/${t}.mk ] && enable ${t}
 136 done
 137
 138 # check installed doxygen version
 139 doxy_version=$(doxygen --version 2>/dev/null)
 140 doxy_major=${doxy_version%%.*}
 141 if [ ${doxy_major:-0} -ge 1 ]; then
 142     doxy_version=${doxy_version#*.}
 143     doxy_minor=${doxy_version%%.*}
 144     doxy_patch=${doxy_version##*.}
 145
 146     [ $doxy_major -gt 1 ] && enable doxygen
 147     [ $doxy_minor -gt 5 ] && enable doxygen
 148     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 149 fi
 150
 151 # install everything except the sources, by default. sources will have
 152 # to be enabled when doing dist builds, since that's no longer a common
 153 # case.
 154 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 155 enable install_bins
 156 enable install_libs
 157
 158 enable static
 159 enable optimizations
 160 enable fast_unaligned #allow unaligned accesses, if supported by hw
 161 enable md5
 162 enable spatial_resampling
 163 enable multithread
 164 enable os_support
 165
 166 [ -d ${source_path}/../include ] && enable alt_tree_layout
 167 for d in vp8; do
 168     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 169 done
 170
 171 if ! enabled alt_tree_layout; then
 172 # development environment
 173 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 174 else
 175 # customer environment
 176 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 177 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 178
 179 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 180 fi
 181
 182 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 183 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 184
 185 ARCH_LIST="
 186     arm
 187     mips
 188     x86
 189     x86_64
 190     ppc32
 191     ppc64
 192 "
 193 ARCH_EXT_LIST="
 194     armv5te
 195     armv6
 196     armv7
 197     iwmmxt
 198     iwmmxt2
 199
 200     mips32
 201
 202     mmx
 203     sse
 204     sse2
 205     sse3
 206     ssse3
 207     sse4_1
 208
 209     altivec
 210 "
 211 HAVE_LIST="
 212     ${ARCH_EXT_LIST}
 213     vpx_ports
 214     stdint_h
 215     alt_tree_layout
 216     pthread_h
 217     sys_mman_h
 218     unistd_h
 219 "
 220 CONFIG_LIST="
 221     external_build
 222     install_docs
 223     install_bins
 224     install_libs
 225     install_srcs
 226     debug
 227     gprof
 228     gcov
 229     rvct
 230     gcc
 231     msvs
 232     pic
 233     big_endian
 234
 235     codec_srcs
 236     debug_libs
 237     fast_unaligned
 238     mem_manager
 239     mem_tracker
 240     mem_checks
 241     md5
 242
 243     dequant_tokens
 244     dc_recon
 245     runtime_cpu_detect
 246     postproc
 247     multithread
 248     internal_stats
 249     ${CODECS}
 250     ${CODEC_FAMILIES}
 251     encoders
 252     decoders
 253     static_msvcrt
 254     spatial_resampling
 255     realtime_only
 256     error_concealment
 257     shared
 258     static
 259     small
 260     postproc_visualizer
 261     os_support
 262 "
 263 CMDLINE_SELECT="
 264     extra_warnings
 265     werror
 266     install_docs
 267     install_bins
 268     install_libs
 269     install_srcs
 270     debug
 271     gprof
 272     gcov
 273     pic
 274     optimizations
 275     ccache
 276     runtime_cpu_detect
 277
 278     libs
 279     examples
 280     libc
 281     as
 282     fast_unaligned
 283     codec_srcs
 284     debug_libs
 285     md5
 286
 287     dequant_tokens
 288     dc_recon
 289     postproc
 290     multithread
 291     internal_stats
 292     ${CODECS}
 293     ${CODEC_FAMILIES}
 294     static_msvcrt
 295     mem_tracker
 296     spatial_resampling
 297     realtime_only
 298     error_concealment
 299     shared
 300     static
 301     small
 302     postproc_visualizer
 303 "
 304
 305 process_cmdline() {
 306     for opt do
 307         optval="${opt#*=}"
 308         case "$opt" in
 309         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 310         *) process_common_cmdline "$opt"
 311         ;;
 312         esac
 313     done
 314 }
 315
 316 post_process_cmdline() {
 317     local c
 318
 319     # If the codec family is disabled, disable all components of that family.
 320     # If the codec family is enabled, enable all components of that family.
 321     log_echo "Configuring selected codecs"
 322     for c in ${CODECS}; do
 323         disabled ${c%%_*} && disable ${c}
 324         enabled ${c%%_*} && enable ${c}
 325     done
 326
 327     # Enable all detected codecs, if they haven't been disabled
 328     for c in ${CODECS}; do soft_enable $c; done
 329
 330     # Enable the codec family if any component of that family is enabled
 331     for c in ${CODECS}; do
 332         enabled $c && enable ${c%_*}
 333     done
 334
 335     # Set the {en,de}coders variable if any algorithm in that class is enabled
 336     for c in ${CODECS}; do
 337         enabled ${c} && enable ${c##*_}s
 338     done
 339 }
 340
 341
 342 process_targets() {
 343     enabled child || write_common_config_banner
 344     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 345
 346     # TODO: add host tools target (obj_int_extract, etc)
 347
 348     # For fat binaries, call configure recursively to configure for each
 349     # binary architecture to be included.
 350     if enabled universal; then
 351         # Call configure (ourselves) for each subarchitecture
 352         for arch in $fat_bin_archs; do
 353             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 354         done
 355     fi
 356
 357     # The write_common_config (config.mk) logic is deferred until after the
 358     # recursive calls to configure complete, becuase we want our universal
 359     # targets to be executed last.
 360     write_common_config_targets
 361     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 362
 363     # Calculate the default distribution name, based on the enabled features
 364     local cf
 365     local DIST_DIR=vpx
 366     for cf in $CODEC_FAMILIES; do
 367         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 368             DIST_DIR="${DIST_DIR}-${cf}"
 369         elif enabled ${cf}_encoder; then
 370             DIST_DIR="${DIST_DIR}-${cf}cx"
 371         elif enabled ${cf}_decoder; then
 372             DIST_DIR="${DIST_DIR}-${cf}dx"
 373         fi
 374     done
 375     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 376     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 377     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 378     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 379     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 380     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 381     case "${tgt_os}" in
 382     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 383           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 384           ;;
 385     esac
 386     if [ -f "${source_path}/build/make/version.sh" ]; then
 387         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 388         DIST_DIR="${DIST_DIR}-${ver}"
 389         VERSION_STRING=${ver}
 390         ver=${ver%%-*}
 391         VERSION_PATCH=${ver##*.}
 392         ver=${ver%.*}
 393         VERSION_MINOR=${ver##*.}
 394         ver=${ver#v}
 395         VERSION_MAJOR=${ver%.*}
 396     fi
 397     enabled child || cat <<EOF >> config.mk
 398
 399 PREFIX=${prefix}
 400 ifeq (\$(MAKECMDGOALS),dist)
 401 DIST_DIR?=${DIST_DIR}
 402 else
 403 DIST_DIR?=\$(DESTDIR)${prefix}
 404 endif
 405 LIBSUBDIR=${libdir##${prefix}/}
 406
 407 VERSION_STRING=${VERSION_STRING}
 408
 409 VERSION_MAJOR=${VERSION_MAJOR}
 410 VERSION_MINOR=${VERSION_MINOR}
 411 VERSION_PATCH=${VERSION_PATCH}
 412
 413 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 414 EOF
 415     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 416
 417     #
 418     # Write makefiles for all enabled targets
 419     #
 420     for tgt in libs examples docs solution; do
 421         local tgt_fn="$tgt-$toolchain.mk"
 422
 423         if enabled $tgt; then
 424             echo "Creating makefiles for ${toolchain} ${tgt}"
 425             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 426             #write_${tgt}_config
 427         fi
 428     done
 429
 430 }
 431
 432 process_detect() {
 433     if enabled shared; then
 434         # Can only build shared libs on a subset of platforms. Doing this check
 435         # here rather than at option parse time because the target auto-detect
 436         # magic happens after the command line has been parsed.
 437         enabled linux || die "--enable-shared only supported on ELF for now"
 438     fi
 439     if [ -z "$CC" ]; then
 440         echo "Bypassing toolchain for environment detection."
 441         enable external_build
 442         check_header() {
 443             log fake_check_header "$@"
 444             header=$1
 445             shift
 446             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 447             disable $var
 448             case $header in
 449                 stdio.h)
 450                     true;
 451                 ;;
 452                 *)
 453                     local result=false
 454                     for d in "$@"; do
 455                         [ -f "${d##-I}/$header" ] && result=true && break
 456                     done
 457                     ${result:-true}
 458             esac && enable $var
 459         }
 460         check_ld() {
 461             true
 462         }
 463     fi
 464     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 465     check_ld <<EOF || die "Toolchain is unable to link executables"
 466 int main(void) {return 0;}
 467 EOF
 468     # check system headers
 469     check_header stdint.h
 470     check_header pthread.h
 471     check_header sys/mman.h
 472
 473     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 474 }
 475
 476 process_toolchain() {
 477     process_common_toolchain
 478
 479     # Handle universal binaries for this architecture
 480     case $toolchain in
 481         universal-darwin*)
 482             local darwin_ver=${tgt_os##darwin}
 483             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 484
 485             # Intel
 486             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 487             if [ $darwin_ver -gt 8 ]; then
 488                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 489             fi
 490             ;;
 491     esac
 492
 493
 494     # Enable some useful compiler flags
 495     if enabled gcc; then
 496         enabled werror && check_add_cflags -Werror
 497         check_add_cflags -Wall
 498         check_add_cflags -Wdeclaration-after-statement
 499         check_add_cflags -Wdisabled-optimization
 500         check_add_cflags -Wpointer-arith
 501         check_add_cflags -Wtype-limits
 502         check_add_cflags -Wcast-qual
 503         enabled extra_warnings || check_add_cflags -Wno-unused-function
 504     fi
 505
 506     if enabled icc; then
 507         enabled werror && check_add_cflags -Werror
 508         check_add_cflags -Wall
 509         check_add_cflags -Wpointer-arith
 510
 511         # ICC has a number of floating point optimizations that we disable
 512         # in favor of deterministic output WRT to other compilers
 513         add_cflags -fp-model precise
 514     fi
 515
 516     # Enable extra, harmless warnings. These might provide additional insight
 517     # to what the compiler is doing and why, but in general, but they shouldn't
 518     # be treated as fatal, even if we're treating warnings as errors.
 519     GCC_EXTRA_WARNINGS="
 520         -Wdisabled-optimization
 521         -Winline
 522     "
 523     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 524     RVCT_EXTRA_WARNINGS="
 525         --remarks
 526     "
 527     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 528     if enabled extra_warnings; then
 529         for w in ${EXTRA_WARNINGS}; do
 530             check_add_cflags ${w}
 531             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 532         done
 533     fi
 534
 535     # ccache only really works on gcc toolchains
 536     enabled gcc || soft_disable ccache
 537     if enabled mips; then
 538         enable dequant_tokens
 539         enable dc_recon
 540     fi
 541
 542     # Enable the postbuild target if building for visual studio.
 543     case "$tgt_cc" in
 544         vs*) enable msvs
 545              enable solution
 546              vs_version=${tgt_cc##vs}
 547              all_targets="${all_targets} solution"
 548         ;;
 549     esac
 550
 551     # Other toolchain specific defaults
 552     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 553
 554     if enabled postproc_visualizer; then
 555         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 556     fi
 557 }
 558
 559
 560 ##
 561 ## END APPLICATION SPECIFIC CONFIGURATION
 562 ##
 563 CONFIGURE_ARGS="$@"
 564 process "$@"
 565 cat <<EOF > ${BUILD_PFX}vpx_config.c
 566 static const char* const cfg = "$CONFIGURE_ARGS";
 567 const char *vpx_codec_build_config(void) {return cfg;}
 568 EOF