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