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