configure.sh 27 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
2
#!/bin/bash
##
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
44
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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
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
##


#
# 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
    pr -n -t $1 >>$logfile
    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
  --log=yes|no|FILE           file configure log is written to [config.err]
  --target=TARGET             target platform tuple [generic-gnu]
  --cpu=CPU                   optimize for a specific cpu rather than a family
  ${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
  ${toggle_pic}               turn on/off Position Independant Code
  ${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

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 "$*" ]; do
123
124
        if [ "${1%%-*}" = "${2%%-*}" ]; then
            if [ "${2%%-*}" = "${3%%-*}" ]; then
John Koleszar's avatar
John Koleszar committed
125
126
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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
                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} $@"
}


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


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


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

#
# Boolean Manipulation Functions
#
enable(){
    set_all yes $*
}

disable(){
    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"
            enable $var
        fi
    done
}

soft_disable() {
    for var in $*; do
        if ! enabled $var; then
            log_echo "  disabling $var"
            disable $var
        fi
    done
}


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


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


#
# Temporary File Functions
#
source_path=${0%/*}
enable source_path_used
if test -z "$source_path" -o "$source_path" = "." ; then
    source_path="`pwd`"
    disable source_path_used
fi

if test ! -z "$TMPDIR" ; then
    TMPDIRx="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIRx="${TEMPDIR}"
else
    TMPDIRx="/tmp"
fi
TMP_H="${TMPDIRx}/vpx-conf-$$-${RANDOM}.h"
TMP_C="${TMPDIRx}/vpx-conf-$$-${RANDOM}.c"
TMP_O="${TMPDIRx}/vpx-conf-$$-${RANDOM}.o"
TMP_X="${TMPDIRx}/vpx-conf-$$-${RANDOM}.x"
Jan Kratochvil's avatar
Jan Kratochvil committed
258
TMP_ASM="${TMPDIRx}/vpx-conf-$$-${RANDOM}.asm"
John Koleszar's avatar
John Koleszar committed
259
260

clean_temp_files() {
Jan Kratochvil's avatar
Jan Kratochvil committed
261
    rm -f ${TMP_C} ${TMP_H} ${TMP_O} ${TMP_X} ${TMP_ASM}
John Koleszar's avatar
John Koleszar committed
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
}

#
# Toolchain Check Functions
#
check_cmd() {
    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}
}

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'`
    disable $var
    check_cpp "$@" <<EOF && enable $var
#include "$header"
int x;
EOF
}


check_cflags() {
    log check_cflags "$@"
    check_cc "$@" <<EOF
int x;
EOF
}

check_add_cflags() {
    check_cflags "$@" && add_cflags "$@"
}

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

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

Jan Kratochvil's avatar
Jan Kratochvil committed
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
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
}

John Koleszar's avatar
John Koleszar committed
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
write_common_config_banner() {
    echo '# This file automatically generated by configure. Do not edit!' > config.mk
    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() {
    local CC=${CC}
    enabled ccache && CC="ccache ${CC}"

    cat > $1 << EOF
# This file automatically generated by configure. Do not edit!
SRC_PATH="$source_path"
SRC_PATH_BARE=$source_path
BUILD_PFX=${BUILD_PFX}
TOOLCHAIN=${toolchain}
ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl}

CC=${CC}
AR=${AR}
LD=${LD}
AS=${AS}
STRIP=${STRIP}
NM=${NM}

385
CFLAGS  = ${CFLAGS}
John Koleszar's avatar
John Koleszar committed
386
387
388
389
390
391
392
393
394
395
396
ARFLAGS = -rus\$(if \$(quiet),c,v)
LDFLAGS = ${LDFLAGS}
ASFLAGS = ${ASFLAGS}
extralibs = ${extralibs}
AS_SFX    = ${AS_SFX:-.asm}
EOF

    if enabled rvct; then cat >> $1 << EOF
fmt_deps = sed -e 's;^__image.axf;\$(dir \$@)\$(notdir \$<).o \$@;' #hide
EOF
    else cat >> $1 << EOF
397
fmt_deps = sed -e 's;^\([a-zA-Z0-9_]*\)\.o;\$(dir \$@)\1\$(suffix \$<).o \$@;'
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
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
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() {
    cat > ${TMP_H} << EOF
/* This file automatically generated by configure. Do not edit! */
#define RESTRICT    ${RESTRICT}
EOF
    print_config_h ARCH   "${TMP_H}" ${ARCH_LIST}
    print_config_h HAVE   "${TMP_H}" ${HAVE_LIST}
    print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
    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 "$opt" in
        --child) enable child
        ;;
        --log*)
        logging="$optval"
        if ! disabled logging ; then
            enabled logging || logfile="$logging"
        else
            logfile=/dev/null
        fi
        ;;
        --target=*) toolchain="${toolchain:-${optval}}"
        ;;
        --force-target=*) toolchain="${toolchain:-${optval}}"; enable force_toolchain
        ;;
        --cpu)
        ;;
        --cpu=*) tune_cpu="$optval"
        ;;
        --enable-?*|--disable-?*)
        eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
        echo "${CMDLINE_SELECT} ${ARCH_EXT_LIST}" | grep "^ *$option\$" >/dev/null || die_unknown $opt
        $action $option
        ;;
        --force-enable-?*|--force-disable-?*)
        eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'`
        $action $option
        ;;
        --libc=*)
        [ -d "${optval}" ] || die "Not a directory: ${optval}"
        disable builtin_libc
        alt_libc="${optval}"
        ;;
Jan Kratochvil's avatar
Jan Kratochvil committed
459
460
461
462
463
        --as=*)
        [ "${optval}" = yasm -o "${optval}" = nasm -o "${optval}" = auto ] \
            || die "Must be yasm, nasm or auto: ${optval}"
        alt_as="${optval}"
        ;;
464
465
466
467
468
469
        --prefix=*)
        prefix="${optval}"
        ;;
        --libdir=*)
        libdir="${optval}"
        ;;
Jan Kratochvil's avatar
Jan Kratochvil committed
470
        --libc|--as|--prefix|--libdir)
John Koleszar's avatar
John Koleszar committed
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
        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
}

491
492
493
494
495
496

post_process_common_cmdline() {
    prefix="${prefix:-/usr/local}"
    prefix="${prefix%/}"
    libdir="${libdir:-${prefix}/lib}"
    libdir="${libdir%/}"
497
    if [ "${libdir#${prefix}}" = "${libdir}" ]; then
498
499
500
501
502
        die "Libdir ${libdir} must be a subdirectory of ${prefix}"
    fi
}


John Koleszar's avatar
John Koleszar committed
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
post_process_cmdline() {
    true;
}

setup_gnu_toolchain() {
        CC=${CC:-${CROSS}gcc}
        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
}

process_common_toolchain() {
518
    if [ -z "$toolchain" ]; then
519
        gcctarget="$(gcc -dumpmachine 2> /dev/null)"
520
521

        # detect tgt_isa
522
        case "$gcctarget" in
523
            *x86_64*|*amd64*)
524
525
526
527
528
                tgt_isa=x86_64
                ;;
            *i[3456]86*)
                tgt_isa=x86
                ;;
529
530
531
532
533
534
            *powerpc64*)
                tgt_isa=ppc64
                ;;
            *powerpc*)
                tgt_isa=ppc32
                ;;
535
536
537
            *sparc*)
                tgt_isa=sparc
                ;;
538
539
540
        esac

        # detect tgt_os
541
542
        case "$gcctarget" in
            *darwin8*)
543
544
545
                tgt_isa=universal
                tgt_os=darwin8
                ;;
546
            *darwin9*)
547
548
549
                tgt_isa=universal
                tgt_os=darwin9
                ;;
John Koleszar's avatar
John Koleszar committed
550
            *mingw32*|*cygwin*)
551
                [ -z "$tgt_isa" ] && tgt_isa=x86
552
553
                tgt_os=win32
                ;;
554
            *linux*|*bsd*)
555
556
                tgt_os=linux
                ;;
557
558
559
            *solaris2.10)
                tgt_os=solaris
                ;;
560
561
562
563
564
565
566
        esac

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

John Koleszar's avatar
John Koleszar committed
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
    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}
    enable ${tgt_os}
    enable ${tgt_cc}

    # Enable the architecture family
    case ${tgt_isa} in
        arm*|iwmmxt*) enable arm;;
    mips*)        enable mips;;
    esac

592
593
594
    # PIC is probably what we want when building shared libs
    enabled shared && soft_enable pic

John Koleszar's avatar
John Koleszar committed
595
596
    # Handle darwin variants
    case ${toolchain} in
597
        *-darwin8-*)
John Koleszar's avatar
John Koleszar committed
598
599
600
601
602
            add_cflags  "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
            add_cflags  "-mmacosx-version-min=10.4"
            add_ldflags "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
            add_ldflags "-mmacosx-version-min=10.4"
            ;;
603
        *-darwin9-*)
John Koleszar's avatar
John Koleszar committed
604
605
606
607
608
609
610
            add_cflags  "-isysroot /Developer/SDKs/MacOSX10.5.sdk"
            add_cflags  "-mmacosx-version-min=10.5"
            add_ldflags "-isysroot /Developer/SDKs/MacOSX10.5.sdk"
            add_ldflags "-mmacosx-version-min=10.5"
            ;;
    esac

611
612
613
614
615
616
617
    # Handle Solaris variants. Solaris 10 needs -lposix4
    case ${toolchain} in
        *-solaris-*)
            add_extralibs -lposix4
            ;;
    esac

John Koleszar's avatar
John Koleszar committed
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
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
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
    # Process ARM architecture variants
    case ${toolchain} in
    arm*|iwmmxt*)
    # on arm, isa versions are supersets
    enabled armv7a && soft_enable armv7 ### DEBUG
    enabled armv7 && soft_enable armv6
    enabled armv6 && soft_enable armv5te
    enabled armv6 && soft_enable fast_unaligned
    enabled iwmmxt2 && soft_enable iwmmxt
    enabled iwmmxt && soft_enable armv5te

    asm_conversion_cmd="cat"

        case ${tgt_cc} in
        gcc)
        if enabled iwmmxt || enabled iwmmxt2
            then
                CROSS=${CROSS:-arm-iwmmxt-linux-gnueabi-}
            elif enabled symbian; then
                CROSS=${CROSS:-arm-none-symbianelf-}
            else
                CROSS=${CROSS:-arm-none-linux-gnueabi-}
            fi
            link_with_cc=gcc
            setup_gnu_toolchain
            arch_int=${tgt_isa##armv}
            arch_int=${arch_int%%te}
            check_add_asflags --defsym ARCHITECTURE=${arch_int}
            tune_cflags="-mtune="
        if enabled iwmmxt || enabled iwmmxt2
            then
                check_add_asflags -mcpu=${tgt_isa}
            elif enabled armv7
            then
                check_add_cflags -march=armv7-a -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp  #-ftree-vectorize
        check_add_asflags -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp  #-march=armv7-a
            else
                check_add_cflags -march=${tgt_isa}
                check_add_asflags -march=${tgt_isa}
            fi

            asm_conversion_cmd="${source_path}/build/make/ads2gas.pl"
            ;;
        rvct)
            CC=armcc
            AR=armar
            AS=armasm
            LD=${source_path}/build/make/armlink_adapter.sh
            STRIP=arm-none-linux-gnueabi-strip
            NM=arm-none-linux-gnueabi-nm
            tune_cflags="--cpu="
            tune_asflags="--cpu="
            if [ -z "${tune_cpu}" ]; then
            if enabled armv7
                then
                    check_add_cflags --cpu=Cortex-A8 --fpu=softvfp+vfpv3
                    check_add_asflags --cpu=Cortex-A8 --fpu=none
                else
                    check_add_cflags --cpu=${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}\""
        ;;
        esac

        case ${tgt_os} in
        darwin*)
            SDK_PATH=/Developer/Platforms/iPhoneOS.platform/Developer
            TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
            CC=${TOOLCHAIN_PATH}/gcc
            AR=${TOOLCHAIN_PATH}/ar
            LD=${TOOLCHAIN_PATH}/arm-apple-darwin9-gcc-4.2.1
            AS=${TOOLCHAIN_PATH}/as
            STRIP=${TOOLCHAIN_PATH}/strip
            NM=${TOOLCHAIN_PATH}/nm
            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
            ASFLAGS="-version -arch ${tgt_isa} -g"

            add_cflags -arch ${tgt_isa}
            add_ldflags -arch_only ${tgt_isa}

            add_cflags  "-isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk"

            # This should be overridable
            alt_libc=${SDK_PATH}/SDKs/iPhoneOS3.1.sdk

            # Add the paths for the alternate libc
#            for d in usr/include usr/include/gcc/darwin/4.0/; do
            for d in usr/include usr/include/gcc/darwin/4.0/ usr/lib/gcc/arm-apple-darwin9/4.0.1/include/; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
            done

            for d in lib usr/lib; do
                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*)
            enable linux
            if enabled rvct; then
                # Compiling with RVCT requires an alternate libc (glibc) when
                # targetting linux.
                disabled builtin_libc \
                    || die "Must supply --libc when targetting *-linux-rvct"

                # Set up compiler
                add_cflags --gnu
                add_cflags --enum_is_int
                add_cflags --library_interface=aeabi_glibc
                add_cflags --no_hide_all
                add_cflags --wchar32
                add_cflags --dwarf2
                add_cflags --gnu

                # Set up linker
                add_ldflags --sysv --no_startup --no_ref_cpp_init
                add_ldflags --entry=_start
                add_ldflags --keep '"*(.init)"' --keep '"*(.fini)"'
                add_ldflags --keep '"*(.init_array)"' --keep '"*(.fini_array)"'
                add_ldflags --dynamiclinker=/lib/ld-linux.so.3
                add_extralibs libc.so.6 -lc_nonshared crt1.o crti.o crtn.o

                # Add the paths for the alternate libc
                for d in usr/include; do
                    try_dir="${alt_libc}/${d}"
                    [ -d "${try_dir}" ] && add_cflags -J"${try_dir}"
                done
                add_cflags -J"${RVCT31INC}"
                for d in lib usr/lib; do
                    try_dir="${alt_libc}/${d}"
                    [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
                done


                # glibc has some struct members named __align, which is a
                # storage modifier in RVCT. If we need to use this modifier,
                # we'll have to #undef it in our code. Note that this must
                # happen AFTER all libc inclues.
                add_cflags -D__align=x_align_x
            fi
        ;;

        symbian*)
            enable symbian
            # Add the paths for the alternate libc
            for d in include/libc; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
            done
            for d in release/armv5/urel; do
                try_dir="${alt_libc}/${d}"
                [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
            done
            add_cflags -DIMPORT_C=

        esac
    ;;
    mips*)
        CROSS=${CROSS:-mipsel-linux-uclibc-}
        link_with_cc=gcc
        setup_gnu_toolchain
        tune_cflags="-mtune="
        check_add_cflags -march=${tgt_isa}
    check_add_asflags -march=${tgt_isa}
    check_add_asflags -KPIC
    ;;
    ppc*)
        enable ppc
        bits=${tgt_isa##ppc}
        link_with_cc=gcc
        setup_gnu_toolchain
        add_asflags -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
        soft_enable altivec
802
        enabled altivec && add_cflags -maltivec
John Koleszar's avatar
John Koleszar committed
803
804
805
806
807
808
809
810
811
812
813

        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}
814
            enabled altivec && add_cflags -faltivec
John Koleszar's avatar
John Koleszar committed
815
816
817
818
819
820
821
822
823
824
825
826
827
828
        ;;
        esac
    ;;
    x86*)
        bits=32
        enabled x86_64 && bits=64
        soft_enable runtime_cpu_detect
        soft_enable mmx
        soft_enable sse
        soft_enable sse2
        soft_enable sse3
        soft_enable ssse3

        case  ${tgt_os} in
John Koleszar's avatar
John Koleszar committed
829
830
831
            win*)
                enabled gcc && add_cflags -fno-common
                ;;
John Koleszar's avatar
John Koleszar committed
832
833
834
835
836
837
838
            solaris*)
                CC=${CC:-${CROSS}gcc}
                LD=${LD:-${CROSS}gcc}
                CROSS=${CROSS:-g}
                ;;
        esac

Jan Kratochvil's avatar
Jan Kratochvil committed
839
        AS="${alt_as:-${AS:-auto}}"
John Koleszar's avatar
John Koleszar committed
840
841
842
843
844
845
846
        case  ${tgt_cc} in
            icc*)
                CC=${CC:-icc}
                LD=${LD:-icc}
                setup_gnu_toolchain
                add_cflags -use-msasm -use-asm
                add_ldflags -i-static
847
848
                enabled x86_64 && add_cflags -ipo -no-prec-div -static -xSSE3 -axSSE3
                enabled x86_64 && AR=xiar
Fritz Koenig's avatar
Fritz Koenig committed
849
850
851
852
853
854
855
856
857
                case ${tune_cpu} in
                    atom*)
                        tune_cflags="-x"
                        tune_cpu="SSE3_ATOM"
                    ;;
                    *)
                        tune_cflags="-march="
                    ;;
                esac
John Koleszar's avatar
John Koleszar committed
858
859
860
861
862
                ;;
            gcc*)
                add_cflags  -m${bits}
                add_ldflags -m${bits}
                link_with_cc=gcc
Fritz Koenig's avatar
Fritz Koenig committed
863
                tune_cflags="-march="
John Koleszar's avatar
John Koleszar committed
864
865
866
867
            setup_gnu_toolchain
                ;;
        esac

Jan Kratochvil's avatar
Jan Kratochvil committed
868
869
870
871
872
873
874
875
876
877
        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"
                ;;
        esac
        log_echo "  using $AS"
        [ "${AS##*/}" = nasm ] && add_asflags -Ox
John Koleszar's avatar
John Koleszar committed
878
879
880
881
882
883
884
885
        AS_SFX=.asm
        case  ${tgt_os} in
            win*)
                add_asflags -f win${bits}
                enabled debug && add_asflags -g dwarf2
            ;;
            linux*|solaris*)
                add_asflags -f elf${bits}
Jan Kratochvil's avatar
Jan Kratochvil committed
886
887
888
                enabled debug && [ "${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
889
890
891
892
893
894
895
896
897
898
899
900
            ;;
            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
            ;;
Jan Kratochvil's avatar
Jan Kratochvil committed
901
            *) log "Warning: Unknown os $tgt_os while setting up $AS flags"
John Koleszar's avatar
John Koleszar committed
902
903
904
905
906
            ;;
        esac
    ;;
    universal*|*-gcc|generic-gnu)
        link_with_cc=gcc
907
        enable gcc
John Koleszar's avatar
John Koleszar committed
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
    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
John Koleszar's avatar
John Koleszar committed
932
933
934
    if enabled optimizations; then
        enabled rvct && check_add_cflags -Otime
        enabled small && check_add_cflags -O2 || check_add_cflags -O3
John Koleszar's avatar
John Koleszar committed
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
    fi

    # Position Independant Code (PIC) support, for building relocatable
    # shared objects
    enabled gcc && enabled pic && check_add_cflags -fPIC

    # Check for strip utility variant
    ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable gnu_strip

    # 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' |
        grep '4f *32 *42 *45' >/dev/null 2>&1 && enable big_endian

    # Almost every platform uses pthreads.
    if enabled multithread; then
        case ${toolchain} in
            *-win*);;
            *) check_header pthread.h && add_extralibs -lpthread
        esac
    fi

    # glibc needs these
    if enabled linux; then
961
962
        add_cflags -D_LARGEFILE_SOURCE
        add_cflags -D_FILE_OFFSET_BITS=64
John Koleszar's avatar
John Koleszar committed
963
964
965
966
967
968
969
970
    fi
}

process_toolchain() {
    process_common_toolchain
}

print_config_mk() {
971
972
    local prefix=$1
    local makefile=$2
John Koleszar's avatar
John Koleszar committed
973
974
975
976
977
978
979
980
981
982
    shift 2
    for cfg; do
        upname="`toupper $cfg`"
        if enabled $cfg; then
            echo "${prefix}_${upname}=yes" >> $makefile
        fi
    done
}

print_config_h() {
983
984
    local prefix=$1
    local header=$2
John Koleszar's avatar
John Koleszar committed
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
    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
}

process_targets() {
    true;
}

process_detect() {
    true;
}

enable logging
logfile="config.err"
self=$0
process() {
    cmdline_args="$@"
    process_cmdline "$@"
    if enabled child; then
        echo "# ${self} $@" >> ${logfile}
    else
        echo "# ${self} $@" > ${logfile}
    fi
1015
    post_process_common_cmdline
John Koleszar's avatar
John Koleszar committed
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
    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
            install -D ${source_path}/$f $f
    done
    fi
    cp ${source_path}/build/make/Makefile .

    clean_temp_files
    true
}