configure.sh 38 KB
Newer Older
1
#!/bin/sh
John Koleszar's avatar
John Koleszar committed
2
##
3
##  configure.sh
John Koleszar's avatar
John Koleszar committed
4
##
5 6 7 8 9
##  This script is sourced by the main configure script and contains
##  utility functions and other common bits that aren't strictly libvpx
##  related.
##
##  This build system is based in part on the FFmpeg configure script.
John Koleszar's avatar
John Koleszar committed
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
##


#
# Logging / Output Functions
#
die_unknown(){
    echo "Unknown option \"$1\"."
    echo "See $0 --help for available options."
    clean_temp_files
    exit 1
}


die() {
    echo "$@"
    echo
    echo "Configuration failed. This could reflect a misconfiguration of your"
    echo "toolchains, improper options selected, or another problem. If you"
    echo "don't see any useful error messages above, the next step is to look"
    echo "at the configure error log file ($logfile) to determine what"
    echo "configure was trying to do when it died."
    clean_temp_files
    exit 1
}


log(){
    echo "$@" >>$logfile
}


log_file(){
    log BEGIN $1
44
    cat -n $1 >>$logfile
John Koleszar's avatar
John Koleszar committed
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
    log END $1
}


log_echo() {
    echo "$@"
    log "$@"
}


fwrite () {
    outfile=$1
    shift
    echo "$@" >> ${outfile}
}


show_help_pre(){
    for opt in ${CMDLINE_SELECT}; do
        opt2=`echo $opt | sed -e 's;_;-;g'`
        if enabled $opt; then
            eval "toggle_${opt}=\"--disable-${opt2}\""
        else
            eval "toggle_${opt}=\"--enable-${opt2} \""
        fi
    done

    cat <<EOF
Usage: configure [options]
Options:

Build options:
  --help                      print this message
78
  --log=yes|no|FILE           file configure log is written to [config.log]
John Koleszar's avatar
John Koleszar committed
79 80
  --target=TARGET             target platform tuple [generic-gnu]
  --cpu=CPU                   optimize for a specific cpu rather than a family
Attila Nagy's avatar
Attila Nagy committed
81
  --extra-cflags=ECFLAGS      add ECFLAGS to CFLAGS [$CFLAGS]
John Koleszar's avatar
John Koleszar committed
82 83 84 85
  ${toggle_extra_warnings}    emit harmless warnings (always non-fatal)
  ${toggle_werror}            treat warnings as errors, if possible
                              (not available with all compilers)
  ${toggle_optimizations}     turn on/off compiler optimization flags
86
  ${toggle_pic}               turn on/off Position Independent Code
John Koleszar's avatar
John Koleszar committed
87 88 89 90
  ${toggle_ccache}            turn on/off compiler cache
  ${toggle_debug}             enable/disable debug mode
  ${toggle_gprof}             enable/disable gprof profiling instrumentation
  ${toggle_gcov}              enable/disable gcov coverage instrumentation
91
  ${toggle_thumb}             enable/disable building arm assembly in thumb mode
John Koleszar's avatar
John Koleszar committed
92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124

Install options:
  ${toggle_install_docs}      control whether docs are installed
  ${toggle_install_bins}      control whether binaries are installed
  ${toggle_install_libs}      control whether libraries are installed
  ${toggle_install_srcs}      control whether sources are installed


EOF
}


show_help_post(){
    cat <<EOF


NOTES:
    Object files are built at the place where configure is launched.

    All boolean options can be negated. The default value is the opposite
    of that shown above. If the option --disable-foo is listed, then
    the default value for foo is enabled.

Supported targets:
EOF
  show_targets ${all_platforms}
  echo
  exit 1
}


show_targets() {
    while [ -n "$*" ]; do
125 126
        if [ "${1%%-*}" = "${2%%-*}" ]; then
            if [ "${2%%-*}" = "${3%%-*}" ]; then
John Koleszar's avatar
John Koleszar committed
127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
                printf "    %-24s %-24s %-24s\n" "$1" "$2" "$3"
                shift; shift; shift
            else
                printf "    %-24s %-24s\n" "$1" "$2"
                shift; shift
            fi
        else
            printf "    %-24s\n" "$1"
            shift
        fi
    done
}


show_help() {
    show_help_pre
    show_help_post
}

#
# List Processing Functions
#
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}


is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}


add_cflags() {
    CFLAGS="${CFLAGS} $@"
John Koleszar's avatar
John Koleszar committed
170 171 172 173 174 175 176 177 178 179 180
    CXXFLAGS="${CXXFLAGS} $@"
}


add_cflags_only() {
    CFLAGS="${CFLAGS} $@"
}


add_cxxflags_only() {
    CXXFLAGS="${CXXFLAGS} $@"
John Koleszar's avatar
John Koleszar committed
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
}


add_ldflags() {
    LDFLAGS="${LDFLAGS} $@"
}


add_asflags() {
    ASFLAGS="${ASFLAGS} $@"
}


add_extralibs() {
    extralibs="${extralibs} $@"
}

#
# Boolean Manipulation Functions
#
201
enable_feature(){
John Koleszar's avatar
John Koleszar committed
202 203 204
    set_all yes $*
}

205
disable_feature(){
John Koleszar's avatar
John Koleszar committed
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
    set_all no $*
}

enabled(){
    eval test "x\$$1" = "xyes"
}

disabled(){
    eval test "x\$$1" = "xno"
}


soft_enable() {
    for var in $*; do
        if ! disabled $var; then
            log_echo "  enabling $var"
222
            enable_feature $var
John Koleszar's avatar
John Koleszar committed
223 224 225 226 227 228 229 230
        fi
    done
}

soft_disable() {
    for var in $*; do
        if ! enabled $var; then
            log_echo "  disabling $var"
231
            disable_feature $var
John Koleszar's avatar
John Koleszar committed
232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253
        fi
    done
}


#
# Text Processing Functions
#
toupper(){
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}


tolower(){
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}


#
# Temporary File Functions
#
source_path=${0%/*}
254
enable_feature source_path_used
John Koleszar's avatar
John Koleszar committed
255 256
if test -z "$source_path" -o "$source_path" = "." ; then
    source_path="`pwd`"
257
    disable_feature source_path_used
John Koleszar's avatar
John Koleszar committed
258 259 260 261 262 263 264 265 266
fi

if test ! -z "$TMPDIR" ; then
    TMPDIRx="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIRx="${TEMPDIR}"
else
    TMPDIRx="/tmp"
fi
267 268 269 270 271 272 273
RAND=$(awk 'BEGIN { srand(); printf "%d\n",(rand() * 32768)}')
TMP_H="${TMPDIRx}/vpx-conf-$$-${RAND}.h"
TMP_C="${TMPDIRx}/vpx-conf-$$-${RAND}.c"
TMP_CC="${TMPDIRx}/vpx-conf-$$-${RAND}.cc"
TMP_O="${TMPDIRx}/vpx-conf-$$-${RAND}.o"
TMP_X="${TMPDIRx}/vpx-conf-$$-${RAND}.x"
TMP_ASM="${TMPDIRx}/vpx-conf-$$-${RAND}.asm"
John Koleszar's avatar
John Koleszar committed
274 275

clean_temp_files() {
276
    rm -f ${TMP_C} ${TMP_CC} ${TMP_H} ${TMP_O} ${TMP_X} ${TMP_ASM}
277
    enabled gcov && rm -f ${TMP_C%.c}.gcno ${TMP_CC%.cc}.gcno
John Koleszar's avatar
John Koleszar committed
278 279 280 281 282 283
}

#
# Toolchain Check Functions
#
check_cmd() {
284
    enabled external_build && return
John Koleszar's avatar
John Koleszar committed
285 286 287 288 289 290 291 292 293 294 295
    log "$@"
    "$@" >>${logfile} 2>&1
}

check_cc() {
    log check_cc "$@"
    cat >${TMP_C}
    log_file ${TMP_C}
    check_cmd ${CC} ${CFLAGS} "$@" -c -o ${TMP_O} ${TMP_C}
}

John Koleszar's avatar
John Koleszar committed
296 297
check_cxx() {
    log check_cxx "$@"
298 299 300
    cat >${TMP_CC}
    log_file ${TMP_CC}
    check_cmd ${CXX} ${CXXFLAGS} "$@" -c -o ${TMP_O} ${TMP_CC}
John Koleszar's avatar
John Koleszar committed
301 302
}

John Koleszar's avatar
John Koleszar committed
303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320
check_cpp() {
    log check_cpp "$@"
    cat > ${TMP_C}
    log_file ${TMP_C}
    check_cmd ${CC} ${CFLAGS} "$@" -E -o ${TMP_O} ${TMP_C}
}

check_ld() {
    log check_ld "$@"
    check_cc $@ \
        && check_cmd ${LD} ${LDFLAGS} "$@" -o ${TMP_X} ${TMP_O} ${extralibs}
}

check_header(){
    log check_header "$@"
    header=$1
    shift
    var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
321 322
    disable_feature $var
    check_cpp "$@" <<EOF && enable_feature $var
John Koleszar's avatar
John Koleszar committed
323 324 325 326 327 328 329 330
#include "$header"
int x;
EOF
}


check_cflags() {
    log check_cflags "$@"
331
    check_cc -Werror "$@" <<EOF
John Koleszar's avatar
John Koleszar committed
332 333 334 335
int x;
EOF
}

John Koleszar's avatar
John Koleszar committed
336 337 338 339 340
check_cxxflags() {
    log check_cxxflags "$@"

    # Catch CFLAGS that trigger CXX warnings
    case "$CXX" in
341
      *c++-analyzer|*clang++|*g++*) check_cxx -Werror "$@" <<EOF
John Koleszar's avatar
John Koleszar committed
342 343 344
int x;
EOF
      ;;
345
      *) check_cxx -Werror "$@" <<EOF
John Koleszar's avatar
John Koleszar committed
346 347 348 349 350 351
int x;
EOF
      ;;
    esac
}

John Koleszar's avatar
John Koleszar committed
352
check_add_cflags() {
John Koleszar's avatar
John Koleszar committed
353 354
    check_cxxflags "$@" && add_cxxflags_only "$@"
    check_cflags "$@" && add_cflags_only "$@"
John Koleszar's avatar
John Koleszar committed
355 356 357 358 359 360 361 362 363 364 365 366
}

check_add_asflags() {
    log add_asflags "$@"
    add_asflags "$@"
}

check_add_ldflags() {
    log add_ldflags "$@"
    add_ldflags "$@"
}

367 368 369 370 371 372 373 374 375 376 377 378 379 380 381
check_asm_align() {
    log check_asm_align "$@"
    cat >${TMP_ASM} <<EOF
section .rodata
align 16
EOF
    log_file ${TMP_ASM}
    check_cmd ${AS} ${ASFLAGS} -o ${TMP_O} ${TMP_ASM}
    readelf -WS ${TMP_O} >${TMP_X}
    log_file ${TMP_X}
    if ! grep -q '\.rodata .* 16$' ${TMP_X}; then
        die "${AS} ${ASFLAGS} does not support section alignment (nasm <=2.08?)"
    fi
}

382 383 384 385 386 387 388 389 390 391 392 393 394
# tests for -m$1 toggling the feature given in $2. If $2 is empty $1 is used.
check_gcc_machine_option() {
    local opt="$1"
    local feature="$2"
    [ -n "$feature" ] || feature="$opt"

    if enabled gcc && ! disabled "$feature" && ! check_cflags "-m$opt"; then
        RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature "
    else
        soft_enable "$feature"
    fi
}

John Koleszar's avatar
John Koleszar committed
395
write_common_config_banner() {
John Koleszar's avatar
John Koleszar committed
396 397
    print_webm_license config.mk "##" ""
    echo '# This file automatically generated by configure. Do not edit!' >> config.mk
John Koleszar's avatar
John Koleszar committed
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421
    echo "TOOLCHAIN := ${toolchain}" >> config.mk

    case ${toolchain} in
        *-linux-rvct)
            echo "ALT_LIBC := ${alt_libc}" >> config.mk
            ;;
    esac
}

write_common_config_targets() {
    for t in ${all_targets}; do
        if enabled ${t}; then
            if enabled universal || enabled child; then
                fwrite config.mk "ALL_TARGETS += ${t}-${toolchain}"
            else
                fwrite config.mk "ALL_TARGETS += ${t}"
            fi
        fi
    true;
    done
true
}

write_common_target_config_mk() {
422 423
    local CC="${CC}"
    local CXX="${CXX}"
John Koleszar's avatar
John Koleszar committed
424
    enabled ccache && CC="ccache ${CC}"
John Koleszar's avatar
John Koleszar committed
425 426
    enabled ccache && CXX="ccache ${CXX}"
    print_webm_license $1 "##" ""
John Koleszar's avatar
John Koleszar committed
427

John Koleszar's avatar
John Koleszar committed
428
    cat >> $1 << EOF
John Koleszar's avatar
John Koleszar committed
429 430 431 432 433 434
# This file automatically generated by configure. Do not edit!
SRC_PATH="$source_path"
SRC_PATH_BARE=$source_path
BUILD_PFX=${BUILD_PFX}
TOOLCHAIN=${toolchain}
ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl}
435
GEN_VCPROJ=${gen_vcproj_cmd}
436
MSVS_ARCH_DIR=${msvs_arch_dir}
John Koleszar's avatar
John Koleszar committed
437 438

CC=${CC}
John Koleszar's avatar
John Koleszar committed
439
CXX=${CXX}
John Koleszar's avatar
John Koleszar committed
440 441 442 443 444 445
AR=${AR}
LD=${LD}
AS=${AS}
STRIP=${STRIP}
NM=${NM}

446
CFLAGS  = ${CFLAGS}
John Koleszar's avatar
John Koleszar committed
447
CXXFLAGS  = ${CXXFLAGS}
John Koleszar's avatar
John Koleszar committed
448 449 450 451 452
ARFLAGS = -rus\$(if \$(quiet),c,v)
LDFLAGS = ${LDFLAGS}
ASFLAGS = ${ASFLAGS}
extralibs = ${extralibs}
AS_SFX    = ${AS_SFX:-.asm}
John Koleszar's avatar
John Koleszar committed
453
EXE_SFX   = ${EXE_SFX}
454
VCPROJ_SFX = ${VCPROJ_SFX}
455
RTCD_OPTIONS = ${RTCD_OPTIONS}
John Koleszar's avatar
John Koleszar committed
456 457 458
EOF

    if enabled rvct; then cat >> $1 << EOF
459
fmt_deps = sed -e 's;^__image.axf;\${@:.d=.o} \$@;' #hide
John Koleszar's avatar
John Koleszar committed
460 461
EOF
    else cat >> $1 << EOF
462
fmt_deps = sed -e 's;^\([a-zA-Z0-9_]*\)\.o;\${@:.d=.o} \$@;'
John Koleszar's avatar
John Koleszar committed
463 464 465 466 467 468 469 470 471 472 473 474 475 476
EOF
    fi

    print_config_mk ARCH   "${1}" ${ARCH_LIST}
    print_config_mk HAVE   "${1}" ${HAVE_LIST}
    print_config_mk CONFIG "${1}" ${CONFIG_LIST}
    print_config_mk HAVE   "${1}" gnu_strip

    enabled msvs && echo "CONFIG_VS_VERSION=${vs_version}" >> "${1}"

}


write_common_target_config_h() {
John Koleszar's avatar
John Koleszar committed
477 478
    print_webm_license ${TMP_H} "/*" " */"
    cat >> ${TMP_H} << EOF
John Koleszar's avatar
John Koleszar committed
479
/* This file automatically generated by configure. Do not edit! */
480 481
#ifndef VPX_CONFIG_H
#define VPX_CONFIG_H
John Koleszar's avatar
John Koleszar committed
482
#define RESTRICT    ${RESTRICT}
483
#define INLINE      ${INLINE}
John Koleszar's avatar
John Koleszar committed
484 485 486 487
EOF
    print_config_h ARCH   "${TMP_H}" ${ARCH_LIST}
    print_config_h HAVE   "${TMP_H}" ${HAVE_LIST}
    print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
488
    echo "#endif /* VPX_CONFIG_H */" >> ${TMP_H}
John Koleszar's avatar
John Koleszar committed
489 490 491 492 493 494 495 496
    mkdir -p `dirname "$1"`
    cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
}

process_common_cmdline() {
    for opt in "$@"; do
        optval="${opt#*=}"
        case "$opt" in
497
        --child) enable_feature child
John Koleszar's avatar
John Koleszar committed
498 499 500 501 502 503 504 505 506 507 508
        ;;
        --log*)
        logging="$optval"
        if ! disabled logging ; then
            enabled logging || logfile="$logging"
        else
            logfile=/dev/null
        fi
        ;;
        --target=*) toolchain="${toolchain:-${optval}}"
        ;;
509
        --force-target=*) toolchain="${toolchain:-${optval}}"; enable_feature force_toolchain
John Koleszar's avatar
John Koleszar committed
510 511 512 513 514
        ;;
        --cpu)
        ;;
        --cpu=*) tune_cpu="$optval"
        ;;
Attila Nagy's avatar
Attila Nagy committed
515 516 517
        --extra-cflags=*)
        extra_cflags="${optval}"
        ;;
John Koleszar's avatar
John Koleszar committed
518 519
        --enable-?*|--disable-?*)
        eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
520
        if echo "${ARCH_EXT_LIST}" | grep "^ *$option\$" >/dev/null; then
Johann's avatar
Johann committed
521
            [ $action = "disable" ] && RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${option} "
John Koleszar's avatar
John Koleszar committed
522 523 524 525 526 527
        elif [ $action = "disable" ] && ! disabled $option ; then
          echo "${CMDLINE_SELECT}" | grep "^ *$option\$" >/dev/null ||
            die_unknown $opt
        elif [ $action = "enable" ] && ! enabled $option ; then
          echo "${CMDLINE_SELECT}" | grep "^ *$option\$" >/dev/null ||
            die_unknown $opt
528
        fi
529
        ${action}_feature $option
530 531 532 533 534 535 536 537
        ;;
        --require-?*)
        eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
        if echo "${ARCH_EXT_LIST}" none | grep "^ *$option\$" >/dev/null; then
            RTCD_OPTIONS="${RTCD_OPTIONS}${opt} "
        else
            die_unknown $opt
        fi
John Koleszar's avatar
John Koleszar committed
538 539 540
        ;;
        --force-enable-?*|--force-disable-?*)
        eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'`
541
        ${action}_feature $option
John Koleszar's avatar
John Koleszar committed
542 543 544
        ;;
        --libc=*)
        [ -d "${optval}" ] || die "Not a directory: ${optval}"
545
        disable_feature builtin_libc
John Koleszar's avatar
John Koleszar committed
546 547
        alt_libc="${optval}"
        ;;
548 549 550 551 552
        --as=*)
        [ "${optval}" = yasm -o "${optval}" = nasm -o "${optval}" = auto ] \
            || die "Must be yasm, nasm or auto: ${optval}"
        alt_as="${optval}"
        ;;
553 554 555 556 557 558
        --prefix=*)
        prefix="${optval}"
        ;;
        --libdir=*)
        libdir="${optval}"
        ;;
John Koleszar's avatar
John Koleszar committed
559 560 561 562 563
        --sdk-path=*)
        [ -d "${optval}" ] || die "Not a directory: ${optval}"
        sdk_path="${optval}"
        ;;
        --libc|--as|--prefix|--libdir|--sdk-path)
John Koleszar's avatar
John Koleszar committed
564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
        die "Option ${opt} requires argument"
        ;;
        --help|-h) show_help
        ;;
        *) die_unknown $opt
        ;;
        esac
    done
}

process_cmdline() {
    for opt do
        optval="${opt#*=}"
        case "$opt" in
        *) process_common_cmdline $opt
        ;;
        esac
    done
}

584 585 586 587 588 589

post_process_common_cmdline() {
    prefix="${prefix:-/usr/local}"
    prefix="${prefix%/}"
    libdir="${libdir:-${prefix}/lib}"
    libdir="${libdir%/}"
590
    if [ "${libdir#${prefix}}" = "${libdir}" ]; then
591 592 593 594 595
        die "Libdir ${libdir} must be a subdirectory of ${prefix}"
    fi
}


John Koleszar's avatar
John Koleszar committed
596 597 598 599 600 601
post_process_cmdline() {
    true;
}

setup_gnu_toolchain() {
        CC=${CC:-${CROSS}gcc}
John Koleszar's avatar
John Koleszar committed
602
        CXX=${CXX:-${CROSS}g++}
John Koleszar's avatar
John Koleszar committed
603 604 605 606 607 608
        AR=${AR:-${CROSS}ar}
        LD=${LD:-${CROSS}${link_with_cc:-ld}}
        AS=${AS:-${CROSS}as}
    STRIP=${STRIP:-${CROSS}strip}
    NM=${NM:-${CROSS}nm}
        AS_SFX=.s
John Koleszar's avatar
John Koleszar committed
609
        EXE_SFX=
John Koleszar's avatar
John Koleszar committed
610 611 612
}

process_common_toolchain() {
613
    if [ -z "$toolchain" ]; then
John Koleszar's avatar
John Koleszar committed
614
        gcctarget="${CHOST:-$(gcc -dumpmachine 2> /dev/null)}"
615 616

        # detect tgt_isa
617
        case "$gcctarget" in
John Koleszar's avatar
John Koleszar committed
618 619 620
            armv6*)
                tgt_isa=armv6
                ;;
621 622 623 624
            armv7*-hardfloat*)
                tgt_isa=armv7
                float_abi=hard
                ;;
John Koleszar's avatar
John Koleszar committed
625 626
            armv7*)
                tgt_isa=armv7
627
                float_abi=softfp
John Koleszar's avatar
John Koleszar committed
628 629 630 631
                ;;
            armv5te*)
                tgt_isa=armv5te
                ;;
632
            *x86_64*|*amd64*)
633 634 635 636 637
                tgt_isa=x86_64
                ;;
            *i[3456]86*)
                tgt_isa=x86
                ;;
638 639 640 641 642 643
            *powerpc64*)
                tgt_isa=ppc64
                ;;
            *powerpc*)
                tgt_isa=ppc32
                ;;
644 645 646
            *sparc*)
                tgt_isa=sparc
                ;;
647 648 649
        esac

        # detect tgt_os
650 651
        case "$gcctarget" in
            *darwin8*)
652 653 654
                tgt_isa=universal
                tgt_os=darwin8
                ;;
655
            *darwin9*)
656 657 658
                tgt_isa=universal
                tgt_os=darwin9
                ;;
659 660 661 662
            *darwin10*)
                tgt_isa=x86_64
                tgt_os=darwin10
                ;;
John Koleszar's avatar
John Koleszar committed
663 664 665 666 667 668 669 670
            *darwin11*)
                tgt_isa=x86_64
                tgt_os=darwin11
                ;;
            *darwin12*)
                tgt_isa=x86_64
                tgt_os=darwin12
                ;;
671 672 673 674
            *darwin13*)
                tgt_isa=x86_64
                tgt_os=darwin13
                ;;
675 676 677
            x86_64*mingw32*)
                tgt_os=win64
                ;;
678
            *mingw32*|*cygwin*)
679
                [ -z "$tgt_isa" ] && tgt_isa=x86
680 681
                tgt_os=win32
                ;;
682
            *linux*|*bsd*)
683 684
                tgt_os=linux
                ;;
685 686 687
            *solaris2.10)
                tgt_os=solaris
                ;;
John Koleszar's avatar
John Koleszar committed
688 689 690
            *os2*)
                tgt_os=os2
                ;;
691 692 693 694 695 696 697
        esac

        if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then
            toolchain=${tgt_isa}-${tgt_os}-gcc
        fi
    fi

John Koleszar's avatar
John Koleszar committed
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
    toolchain=${toolchain:-generic-gnu}

    is_in ${toolchain} ${all_platforms} || enabled force_toolchain \
        || die "Unrecognized toolchain '${toolchain}'"

    enabled child || log_echo "Configuring for target '${toolchain}'"

    #
    # Set up toolchain variables
    #
    tgt_isa=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $1}')
    tgt_os=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $2}')
    tgt_cc=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $3}')

    # Mark the specific ISA requested as enabled
    soft_enable ${tgt_isa}
714 715
    enable_feature ${tgt_os}
    enable_feature ${tgt_cc}
John Koleszar's avatar
John Koleszar committed
716 717 718

    # Enable the architecture family
    case ${tgt_isa} in
719 720
        arm*) enable_feature arm;;
        mips*) enable_feature mips;;
John Koleszar's avatar
John Koleszar committed
721 722
    esac

723 724 725
    # PIC is probably what we want when building shared libs
    enabled shared && soft_enable pic

John Koleszar's avatar
John Koleszar committed
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
    # Handle darwin variants. Newer SDKs allow targeting older
    # platforms, so find the newest SDK available.
    case ${toolchain} in
        *-darwin*)
            if [ -z "${DEVELOPER_DIR}" ]; then
                DEVELOPER_DIR=`xcode-select -print-path 2> /dev/null`
                [ $? -ne 0 ] && OSX_SKIP_DIR_CHECK=1
            fi
            if [ -z "${OSX_SKIP_DIR_CHECK}" ]; then
                OSX_SDK_ROOTS="${DEVELOPER_DIR}/SDKs"
                OSX_SDK_VERSIONS="MacOSX10.4u.sdk MacOSX10.5.sdk MacOSX10.6.sdk"
                OSX_SDK_VERSIONS="${OSX_SDK_VERSIONS} MacOSX10.7.sdk"
                for v in ${OSX_SDK_VERSIONS}; do
                    if [ -d "${OSX_SDK_ROOTS}/${v}" ]; then
                        osx_sdk_dir="${OSX_SDK_ROOTS}/${v}"
                    fi
                done
            fi
            ;;
    esac

    if [ -d "${osx_sdk_dir}" ]; then
        add_cflags  "-isysroot ${osx_sdk_dir}"
        add_ldflags "-isysroot ${osx_sdk_dir}"
    fi

John Koleszar's avatar
John Koleszar committed
752
    case ${toolchain} in
753
        *-darwin8-*)
John Koleszar's avatar
John Koleszar committed
754 755 756
            add_cflags  "-mmacosx-version-min=10.4"
            add_ldflags "-mmacosx-version-min=10.4"
            ;;
757
        *-darwin9-*)
John Koleszar's avatar
John Koleszar committed
758 759 760
            add_cflags  "-mmacosx-version-min=10.5"
            add_ldflags "-mmacosx-version-min=10.5"
            ;;
761 762 763 764
        *-darwin10-*)
            add_cflags  "-mmacosx-version-min=10.6"
            add_ldflags "-mmacosx-version-min=10.6"
            ;;
765 766 767 768
        *-darwin11-*)
            add_cflags  "-mmacosx-version-min=10.7"
            add_ldflags "-mmacosx-version-min=10.7"
            ;;
John Koleszar's avatar
John Koleszar committed
769 770 771 772
        *-darwin12-*)
            add_cflags  "-mmacosx-version-min=10.8"
            add_ldflags "-mmacosx-version-min=10.8"
            ;;
773 774 775 776
        *-darwin13-*)
            add_cflags  "-mmacosx-version-min=10.9"
            add_ldflags "-mmacosx-version-min=10.9"
            ;;
777 778 779 780 781 782 783
        *-iphonesimulator-*)
            add_cflags  "-miphoneos-version-min=5.0"
            add_ldflags "-miphoneos-version-min=5.0"
            osx_sdk_dir="$(xcrun --sdk iphonesimulator --show-sdk-path)"
            add_cflags  "-isysroot ${osx_sdk_dir}"
            add_ldflags "-isysroot ${osx_sdk_dir}"
            ;;
John Koleszar's avatar
John Koleszar committed
784 785
    esac

786 787
    # Handle Solaris variants. Solaris 10 needs -lposix4
    case ${toolchain} in
788 789
        sparc-solaris-*)
            add_extralibs -lposix4
790
            disable_feature fast_unaligned
791
            ;;
792 793 794 795 796
        *-solaris-*)
            add_extralibs -lposix4
            ;;
    esac

John Koleszar's avatar
John Koleszar committed
797 798
    # Process ARM architecture variants
    case ${toolchain} in
John Koleszar's avatar
John Koleszar committed
799 800 801
    arm*)
        # on arm, isa versions are supersets
        case ${tgt_isa} in
802 803 804
        armv8)
            soft_enable neon
            ;;
805
        armv7|armv7s)
John Koleszar's avatar
John Koleszar committed
806
            soft_enable neon
807
            soft_enable neon_asm
John Koleszar's avatar
John Koleszar committed
808 809 810 811 812 813 814 815 816 817 818
            soft_enable media
            soft_enable edsp
            soft_enable fast_unaligned
            ;;
        armv6)
            soft_enable media
            soft_enable edsp
            soft_enable fast_unaligned
            ;;
        armv5te)
            soft_enable edsp
819
            disable_feature fast_unaligned
John Koleszar's avatar
John Koleszar committed
820 821
            ;;
        esac
John Koleszar's avatar
John Koleszar committed
822

John Koleszar's avatar
John Koleszar committed
823
        asm_conversion_cmd="cat"
John Koleszar's avatar
John Koleszar committed
824 825 826

        case ${tgt_cc} in
        gcc)
John Koleszar's avatar
John Koleszar committed
827
            CROSS=${CROSS:-arm-none-linux-gnueabi-}
John Koleszar's avatar
John Koleszar committed
828 829 830 831 832 833
            link_with_cc=gcc
            setup_gnu_toolchain
            arch_int=${tgt_isa##armv}
            arch_int=${arch_int%%te}
            check_add_asflags --defsym ARCHITECTURE=${arch_int}
            tune_cflags="-mtune="
834
            if [ ${tgt_isa} = "armv7" ] || [ ${tgt_isa} = "armv7s" ]; then
835 836 837 838 839 840 841
                if [ -z "${float_abi}" ]; then
                    check_cpp <<EOF && float_abi=hard || float_abi=softfp
#ifndef __ARM_PCS_VFP
#error "not hardfp"
#endif
EOF
                fi
842 843
                check_add_cflags  -march=armv7-a -mfloat-abi=${float_abi}
                check_add_asflags -march=armv7-a -mfloat-abi=${float_abi}
John Koleszar's avatar
John Koleszar committed
844

Johann's avatar
Johann committed
845
                if enabled neon || enabled neon_asm
John Koleszar's avatar
John Koleszar committed
846 847 848 849 850 851 852 853
                then
                    check_add_cflags -mfpu=neon #-ftree-vectorize
                    check_add_asflags -mfpu=neon
                fi

                if [ -z "${tune_cpu}" ]; then
                    tune_cpu=cortex-a8
                fi
John Koleszar's avatar
John Koleszar committed
854 855 856 857
            else
                check_add_cflags -march=${tgt_isa}
                check_add_asflags -march=${tgt_isa}
            fi
John Koleszar's avatar
John Koleszar committed
858

Attila Nagy's avatar
Attila Nagy committed
859
            enabled debug && add_asflags -g
John Koleszar's avatar
John Koleszar committed
860
            asm_conversion_cmd="${source_path}/build/make/ads2gas.pl"
861 862 863 864 865
            if enabled thumb; then
                asm_conversion_cmd="$asm_conversion_cmd -thumb"
                check_add_cflags -mthumb
                check_add_asflags -mthumb -mimplicit-it=always
            fi
John Koleszar's avatar
John Koleszar committed
866
            ;;
867 868 869 870
        vs*)
            asm_conversion_cmd="${source_path}/build/make/ads2armasm_ms.pl"
            AS_SFX=.s
            msvs_arch_dir=arm-msvs
871 872
            disable_feature multithread
            disable_feature unit_tests
873 874 875 876 877 878 879
            vs_version=${tgt_cc##vs}
            if [ $vs_version -ge 12 ]; then
                # MSVC 2013 doesn't allow doing plain .exe projects for ARM,
                # only "AppContainerApplication" which requires an AppxManifest.
                # Therefore disable the examples, just build the library.
                disable_feature examples
            fi
John Koleszar's avatar
John Koleszar committed
880 881 882 883 884
            ;;
        rvct)
            CC=armcc
            AR=armar
            AS=armasm
885
            LD="${source_path}/build/make/armlink_adapter.sh"
John Koleszar's avatar
John Koleszar committed
886 887 888 889 890
            STRIP=arm-none-linux-gnueabi-strip
            NM=arm-none-linux-gnueabi-nm
            tune_cflags="--cpu="
            tune_asflags="--cpu="
            if [ -z "${tune_cpu}" ]; then
891
                if [ ${tgt_isa} = "armv7" ]; then
Johann's avatar
Johann committed
892
                    if enabled neon || enabled neon_asm
John Koleszar's avatar
John Koleszar committed
893 894 895 896 897 898
                    then
                        check_add_cflags --fpu=softvfp+vfpv3
                        check_add_asflags --fpu=softvfp+vfpv3
                    fi
                    check_add_cflags --cpu=Cortex-A8
                    check_add_asflags --cpu=Cortex-A8
John Koleszar's avatar
John Koleszar committed
899 900 901 902 903 904 905 906
                else
                    check_add_cflags --cpu=${tgt_isa##armv}
                    check_add_asflags --cpu=${tgt_isa##armv}
                fi
            fi
            arch_int=${tgt_isa##armv}
            arch_int=${arch_int%%te}
            check_add_asflags --pd "\"ARCHITECTURE SETA ${arch_int}\""
Attila Nagy's avatar
Attila Nagy committed
907
            enabled debug && add_asflags -g
908 909 910
            add_cflags --gnu
            add_cflags --enum_is_int
            add_cflags --wchar32
John Koleszar's avatar
John Koleszar committed
911 912 913 914
        ;;
        esac

        case ${tgt_os} in
915
        none*)
916 917
            disable_feature multithread
            disable_feature os_support
918
            ;;
John Koleszar's avatar
John Koleszar committed
919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948

        android*)
            SDK_PATH=${sdk_path}
            COMPILER_LOCATION=`find "${SDK_PATH}" \
                               -name "arm-linux-androideabi-gcc*" -print -quit`
            TOOLCHAIN_PATH=${COMPILER_LOCATION%/*}/arm-linux-androideabi-
            CC=${TOOLCHAIN_PATH}gcc
            CXX=${TOOLCHAIN_PATH}g++
            AR=${TOOLCHAIN_PATH}ar
            LD=${TOOLCHAIN_PATH}gcc
            AS=${TOOLCHAIN_PATH}as
            STRIP=${TOOLCHAIN_PATH}strip
            NM=${TOOLCHAIN_PATH}nm

            if [ -z "${alt_libc}" ]; then
                alt_libc=`find "${SDK_PATH}" -name arch-arm -print | \
                          awk '{n = split($0,a,"/"); \
                                split(a[n-1],b,"-"); \
                                print $0 " " b[2]}' | \
                          sort -g -k 2 | \
                          awk '{ print $1 }' | tail -1`
            fi

            add_cflags "--sysroot=${alt_libc}"
            add_ldflags "--sysroot=${alt_libc}"

            # linker flag that routes around a CPU bug in some
            # Cortex-A8 implementations (NDK Dev Guide)
            add_ldflags "-Wl,--fix-cortex-a8"

949
            enable_feature pic
John Koleszar's avatar
John Koleszar committed
950
            soft_enable realtime_only
951
            if [ ${tgt_isa} = "armv7" ]; then
John Koleszar's avatar
John Koleszar committed
952 953 954 955 956 957 958
                soft_enable runtime_cpu_detect
            fi
            if enabled runtime_cpu_detect; then
                add_cflags "-I${SDK_PATH}/sources/android/cpufeatures"
            fi
          ;;

John Koleszar's avatar
John Koleszar committed
959
        darwin*)
Johann's avatar
Johann committed
960 961 962 963 964 965 966 967 968 969

            XCRUN_FIND="xcrun --sdk iphoneos -find"
            CXX="$(${XCRUN_FIND} clang++)"
            CC="$(${XCRUN_FIND} clang)"
            AR="$(${XCRUN_FIND} ar)"
            LD="$(${XCRUN_FIND} ld)"
            AS="$(${XCRUN_FIND} as)"
            STRIP="$(${XCRUN_FIND} strip)"
            NM="$(${XCRUN_FIND} nm)"
            RANLIB="$(${XCRUN_FIND} ranlib)"
John Koleszar's avatar
John Koleszar committed
970 971 972 973 974
            AS_SFX=.s

            # ASFLAGS is written here instead of using check_add_asflags
            # because we need to overwrite all of ASFLAGS and purge the
            # options that were put in above
Johann's avatar
Johann committed
975
            ASFLAGS="-arch ${tgt_isa} -g"
John Koleszar's avatar
John Koleszar committed
976

Johann's avatar
Johann committed
977 978 979
            alt_libc="$(xcrun --sdk iphoneos --show-sdk-path)"
            add_cflags -arch ${tgt_isa} -isysroot ${alt_libc}
            add_ldflags -arch ${tgt_isa} -ios_version_min 7.0
John Koleszar's avatar
John Koleszar committed
980

981
            for d in lib usr/lib usr/lib/system; do
John Koleszar's avatar
John Koleszar committed
982 983 984 985 986 987 988 989
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
            done

            asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl"
         ;;

        linux*)
990
            enable_feature linux
John Koleszar's avatar
John Koleszar committed
991
            if enabled rvct; then
992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
                # Check if we have CodeSourcery GCC in PATH. Needed for
                # libraries
                hash arm-none-linux-gnueabi-gcc 2>&- || \
                  die "Couldn't find CodeSourcery GCC from PATH"

                # Use armcc as a linker to enable translation of
                # some gcc specific options such as -lm and -lpthread.
                LD="armcc --translate_gcc"

                # create configuration file (uses path to CodeSourcery GCC)
                armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg

                add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
                add_asflags --no_hide_all --apcs=/interwork
                add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
                enabled pic && add_cflags --apcs=/fpic
                enabled pic && add_asflags --apcs=/fpic
                enabled shared && add_cflags --shared
John Koleszar's avatar
John Koleszar committed
1010 1011 1012 1013 1014 1015 1016 1017 1018
            fi
        ;;

        esac
    ;;
    mips*)
        link_with_cc=gcc
        setup_gnu_toolchain
        tune_cflags="-mtune="
John Koleszar's avatar
John Koleszar committed
1019 1020
        if enabled dspr2; then
            check_add_cflags -mips32r2 -mdspr2
1021
            disable_feature fast_unaligned
John Koleszar's avatar
John Koleszar committed
1022
        fi
John Koleszar's avatar
John Koleszar committed
1023
        check_add_cflags -march=${tgt_isa}
John Koleszar's avatar
John Koleszar committed
1024 1025
        check_add_asflags -march=${tgt_isa}
        check_add_asflags -KPIC
John Koleszar's avatar
John Koleszar committed
1026 1027
    ;;
    ppc*)
1028
        enable_feature ppc
John Koleszar's avatar
John Koleszar committed
1029 1030 1031 1032 1033
        bits=${tgt_isa##ppc}
        link_with_cc=gcc
        setup_gnu_toolchain
        add_asflags -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
        soft_enable altivec
1034
        enabled altivec && add_cflags -maltivec
John Koleszar's avatar
John Koleszar committed
1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045

        case "$tgt_os" in
        linux*)
            add_asflags -maltivec -mregnames -I"\$(dir \$<)linux"
        ;;
        darwin*)
            darwin_arch="-arch ppc"
            enabled ppc64 && darwin_arch="${darwin_arch}64"
            add_cflags  ${darwin_arch} -m${bits} -fasm-blocks
            add_asflags ${darwin_arch} -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
            add_ldflags ${darwin_arch} -m${bits}
1046
            enabled altivec && add_cflags -faltivec
John Koleszar's avatar
John Koleszar committed
1047 1048 1049 1050 1051 1052
        ;;
        esac
    ;;
    x86*)
        bits=32
        enabled x86_64 && bits=64
John Koleszar's avatar
John Koleszar committed
1053 1054 1055 1056 1057
        check_cpp <<EOF && bits=x32
#ifndef __ILP32__
#error "not x32"
#endif
EOF
John Koleszar's avatar
John Koleszar committed
1058 1059

        case  ${tgt_os} in
1060 1061 1062
            win*)
                enabled gcc && add_cflags -fno-common
                ;;
John Koleszar's avatar
John Koleszar committed
1063 1064
            solaris*)
                CC=${CC:-${CROSS}gcc}
John Koleszar's avatar
John Koleszar committed
1065
                CXX=${CXX:-${CROSS}g++}
John Koleszar's avatar
John Koleszar committed
1066 1067 1068
                LD=${LD:-${CROSS}gcc}
                CROSS=${CROSS:-g}
                ;;
John Koleszar's avatar
John Koleszar committed
1069 1070 1071
            os2)
                AS=${AS:-nasm}
                ;;
John Koleszar's avatar
John Koleszar committed
1072 1073
        esac

1074
        AS="${alt_as:-${AS:-auto}}"
John Koleszar's avatar
John Koleszar committed
1075 1076 1077 1078 1079
        case  ${tgt_cc} in
            icc*)
                CC=${CC:-icc}
                LD=${LD:-icc}
                setup_gnu_toolchain
1080 1081 1082 1083 1084
                add_cflags -use-msasm  # remove -use-msasm too?
                # add -no-intel-extensions to suppress warning #10237
                # refer to http://software.intel.com/en-us/forums/topic/280199
                add_ldflags -i-static -no-intel-extensions
                enabled x86_64 && add_cflags -ipo -static -O3 -no-prec-div
1085
                enabled x86_64 && AR=xiar
1086 1087 1088 1089 1090 1091 1092 1093 1094
                case ${tune_cpu} in
                    atom*)
                        tune_cflags="-x"
                        tune_cpu="SSE3_ATOM"
                    ;;
                    *)
                        tune_cflags="-march="
                    ;;
                esac
John Koleszar's avatar
John Koleszar committed
1095
            ;;
John Koleszar's avatar
John Koleszar committed
1096
            gcc*)
John Koleszar's avatar
John Koleszar committed
1097
                add_cflags -m${bits}
John Koleszar's avatar
John Koleszar committed
1098 1099
                add_ldflags -m${bits}
                link_with_cc=gcc
1100
                tune_cflags="-march="
1101
                setup_gnu_toolchain
1102
                #for 32 bit x86 builds, -O3 did not turn on this flag
1103
                enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer
John Koleszar's avatar
John Koleszar committed
1104 1105 1106 1107 1108 1109
            ;;
            vs*)
                # When building with Microsoft Visual Studio the assembler is
                # invoked directly. Checking at configure time is unnecessary.
                # Skip the check by setting AS arbitrarily
                AS=msvs
1110
                msvs_arch_dir=x86-msvs
1111 1112
                vc_version=${tgt_cc##vs}
                case $vc_version in
1113
                    7|8|9|10)
1114 1115 1116 1117 1118 1119
                         echo "${tgt_cc} does not support avx/avx2, disabling....."
                         RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx --disable-avx2 "
                         soft_disable avx
                         soft_disable avx2
                    ;;
                esac
John Koleszar's avatar
John Koleszar committed
1120
            ;;
John Koleszar's avatar
John Koleszar committed
1121 1122
        esac

1123
        soft_enable runtime_cpu_detect
1124 1125
        # We can't use 'check_cflags' until the compiler is configured and CC is
        # populated.
1126 1127 1128 1129
        check_gcc_machine_option mmx
        check_gcc_machine_option sse
        check_gcc_machine_option sse2
        check_gcc_machine_option sse3
James Zern's avatar
James Zern committed
1130
        check_gcc_machine_option ssse3
1131 1132 1133
        check_gcc_machine_option sse4 sse4_1
        check_gcc_machine_option avx
        check_gcc_machine_option avx2
1134

1135 1136 1137 1138 1139 1140
        case "${AS}" in
            auto|"")
                which nasm >/dev/null 2>&1 && AS=nasm
                which yasm >/dev/null 2>&1 && AS=yasm
                [ "${AS}" = auto -o -z "${AS}" ] \
                    && die "Neither yasm nor nasm have been found"
John Koleszar's avatar
John Koleszar committed
1141
            ;;
1142 1143 1144
        esac
        log_echo "  using $AS"
        [ "${AS##*/}" = nasm ] && add_asflags -Ox
John Koleszar's avatar
John Koleszar committed
1145 1146
        AS_SFX=.asm
        case  ${tgt_os} in
John Koleszar's avatar
John Koleszar committed
1147 1148 1149
            win32)
                add_asflags -f win32
                enabled debug && add_asflags -g cv8
1150
                EXE_SFX=.exe
John Koleszar's avatar
John Koleszar committed
1151 1152 1153
            ;;
            win64)
                add_asflags -f x64
1154
                enabled debug && add_asflags -g cv8
1155
                EXE_SFX=.exe
John Koleszar's avatar
John Koleszar committed
1156
            ;;
1157
            linux*|solaris*|android*)
John Koleszar's avatar
John Koleszar committed
1158
                add_asflags -f elf${bits}
1159 1160 1161
                enabled debug && [ "${AS}" = yasm ] && add_asflags -g dwarf2
                enabled debug && [ "${AS}" = nasm ] && add_asflags -g
                [ "${AS##*/}" = nasm ] && check_asm_align
John Koleszar's avatar
John Koleszar committed
1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173
            ;;
            darwin*)
                add_asflags -f macho${bits}
                enabled x86 && darwin_arch="-arch i386" || darwin_arch="-arch x86_64"
                add_cflags  ${darwin_arch}
                add_ldflags ${darwin_arch}
                # -mdynamic-no-pic is still a bit of voodoo -- it was required at
                # one time, but does not seem to be now, and it breaks some of the
                # code that still relies on inline assembly.
                # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic
                enabled icc && ! enabled pic && add_cflags -fno-pic
            ;;
1174
            iphonesimulator)
1175 1176
                add_asflags -f macho${bits}
                enabled x86 && sim_arch="-arch i386" || sim_arch="-arch x86_64"
1177 1178 1179
                add_cflags  ${sim_arch}
                add_ldflags ${sim_arch}
           ;;
John Koleszar's avatar
John Koleszar committed
1180 1181 1182 1183 1184
            os2)
                add_asflags -f aout
                enabled debug && add_asflags -g
                EXE_SFX=.exe
            ;;
1185
            *) log "Warning: Unknown os $tgt_os while setting up $AS flags"
John Koleszar's avatar
John Koleszar committed
1186 1187 1188 1189 1190
            ;;
        esac
    ;;
    universal*|*-gcc|generic-gnu)
        link_with_cc=gcc
1191
        enable_feature gcc
John Koleszar's avatar
John Koleszar committed
1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215
    setup_gnu_toolchain
    ;;
    esac

    # Try to enable CPU specific tuning
    if [ -n "${tune_cpu}" ]; then
        if [ -n "${tune_cflags}" ]; then
            check_add_cflags ${tune_cflags}${tune_cpu} || \
                die "Requested CPU '${tune_cpu}' not supported by compiler"
        fi
    if [ -n "${tune_asflags}" ]; then
            check_add_asflags ${tune_asflags}${tune_cpu} || \
                die "Requested CPU '${tune_cpu}' not supported by assembler"
        fi
    if [ -z "${tune_cflags}${tune_asflags}" ]; then
            log_echo "Warning: CPU tuning not supported by this toolchain"
        fi
    fi

    enabled debug && check_add_cflags -g && check_add_ldflags -g
    enabled gprof && check_add_cflags -pg && check_add_ldflags -pg
    enabled gcov &&
        check_add_cflags -fprofile-arcs -ftest-coverage &&
        check_add_ldflags -fprofile-arcs -ftest-coverage
1216

1217
    if enabled optimizations; then
1218 1219 1220 1221 1222
        if enabled rvct; then
            enabled small && check_add_cflags -Ospace || check_add_cflags -Otime
        else
            enabled small && check_add_cflags -O2 ||  check_add_cflags -O3
        fi
John Koleszar's avatar
John Koleszar committed
1223 1224
    fi

1225
    # default use_x86inc to yes if pic is no or 64bit or we are not on darwin
1226 1227
    if [ ${tgt_isa} = x86_64 -o ! "$pic" = "yes" -o \
         "${tgt_os#darwin}" = "${tgt_os}"  ]; then
1228 1229 1230
      soft_enable use_x86inc
    fi

1231
    # Position Independent Code (PIC) support, for building relocatable
John Koleszar's avatar
John Koleszar committed
1232 1233 1234
    # shared objects
    enabled gcc && enabled pic && check_add_cflags -fPIC

1235 1236
    # Work around longjmp interception on glibc >= 2.11, to improve binary
    # compatibility. See http://code.google.com/p/webm/issues/detail?id=166
1237
    enabled linux && check_add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
1238

John Koleszar's avatar
John Koleszar committed
1239
    # Check for strip utility variant
1240
    ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable_feature gnu_strip
John Koleszar's avatar
John Koleszar committed
1241 1242 1243 1244 1245 1246

    # Try to determine target endianness
    check_cc <<EOF
    unsigned int e = 'O'<<24 | '2'<<16 | 'B'<<8 | 'E';
EOF
    [ -f "${TMP_O}" ] && od -A n -t x1 "${TMP_O}" | tr -d '\n' |
1247
        grep '4f *32 *42 *45' >/dev/null 2>&1 && enable_feature big_endian
John Koleszar's avatar
John Koleszar committed
1248

1249 1250 1251 1252
    # Try to find which inline keywords are supported
    check_cc <<EOF && INLINE="inline"
    static inline function() {}
EOF
1253
    check_cc <<EOF && INLINE="__inline__ __attribute__((always_inline))"
1254 1255 1256
    static __attribute__((always_inline)) function() {}
EOF

John Koleszar's avatar
John Koleszar committed
1257 1258 1259
    # Almost every platform uses pthreads.
    if enabled multithread; then
        case ${toolchain} in
John Koleszar's avatar
John Koleszar committed
1260 1261
            *-win*-vs*);;
            *-android-gcc);;
John Koleszar's avatar
John Koleszar committed
1262 1263 1264 1265
            *) check_header pthread.h && add_extralibs -lpthread
        esac
    fi

John Koleszar's avatar
John Koleszar committed
1266 1267 1268 1269 1270 1271
    # only for MIPS platforms
    case ${toolchain} in
        mips*)
            if enabled dspr2; then
                if enabled big_endian; then
                    echo "dspr2 optimizations are available only for little endian platforms"
1272
                    disable_feature dspr2
John Koleszar's avatar
John Koleszar committed
1273 1274 1275 1276 1277
                fi
            fi
        ;;
    esac

John Koleszar's avatar
John Koleszar committed
1278 1279
    # glibc needs these
    if enabled linux; then
1280 1281
        add_cflags -D_LARGEFILE_SOURCE
        add_cflags -D_FILE_OFFSET_BITS=64
John Koleszar's avatar
John Koleszar committed
1282
    fi
Attila Nagy's avatar
Attila Nagy committed
1283 1284

    # append any user defined extra cflags
1285 1286 1287 1288
    if [ -n "${extra_cflags}" ] ; then
        check_add_cflags ${extra_cflags} || \
        die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
    fi
John Koleszar's avatar
John Koleszar committed
1289 1290 1291 1292 1293 1294 1295
}

process_toolchain() {
    process_common_toolchain
}

print_config_mk() {
1296 1297
    local prefix=$1
    local makefile=$2
John Koleszar's avatar
John Koleszar committed
1298 1299 1300
    shift 2
    for cfg; do
        if enabled $cfg; then
1301
            upname="`toupper $cfg`"
John Koleszar's avatar
John Koleszar committed
1302 1303 1304 1305 1306 1307
            echo "${prefix}_${upname}=yes" >> $makefile
        fi
    done
}

print_config_h() {
1308 1309
    local prefix=$1
    local header=$2
John Koleszar's avatar
John Koleszar committed
1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320
    shift 2
    for cfg; do
        upname="`toupper $cfg`"
        if enabled $cfg; then
            echo "#define ${prefix}_${upname} 1" >> $header
        else
            echo "#define ${prefix}_${upname} 0" >> $header
        fi
    done
}

John Koleszar's avatar
John Koleszar committed
1321 1322
print_webm_license() {
    local destination=$1
1323 1324
    local prefix="$2"
    local suffix="$3"
John Koleszar's avatar
John Koleszar committed
1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336
    shift 3
    cat <<EOF > ${destination}
${prefix} Copyright (c) 2011 The WebM project authors. All Rights Reserved.${suffix}
${prefix} ${suffix}
${prefix} Use of this source code is governed by a BSD-style license${suffix}
${prefix} that can be found in the LICENSE file in the root of the source${suffix}
${prefix} tree. An additional intellectual property rights grant can be found${suffix}
${prefix} in the file PATENTS.  All contributing project authors may${suffix}
${prefix} be found in the AUTHORS file in the root of the source tree.${suffix}
EOF
}

John Koleszar's avatar
John Koleszar committed
1337 1338 1339 1340 1341 1342 1343 1344
process_targets() {
    true;
}

process_detect() {
    true;
}

1345
enable_feature logging
1346
logfile="config.log"
John Koleszar's avatar
John Koleszar committed
1347 1348 1349 1350 1351 1352 1353 1354 1355
self=$0
process() {
    cmdline_args="$@"
    process_cmdline "$@"
    if enabled child; then
        echo "# ${self} $@" >> ${logfile}
    else
        echo "# ${self} $@" > ${logfile}
    fi
1356
    post_process_common_cmdline
John Koleszar's avatar
John Koleszar committed
1357 1358 1359 1360 1361 1362 1363 1364 1365
    post_process_cmdline
    process_toolchain
    process_detect
    process_targets

    OOT_INSTALLS="${OOT_INSTALLS}"
    if enabled source_path_used; then
    # Prepare the PWD for building.
    for f in ${OOT_INSTALLS}; do
1366
            install -D "${source_path}/$f" "$f"
John Koleszar's avatar
John Koleszar committed
1367 1368
    done
    fi
1369
    cp "${source_path}/build/make/Makefile" .
John Koleszar's avatar
John Koleszar committed
1370 1371 1372 1373

    clean_temp_files
    true
}