aclocal.m4 60.1 KB
Newer Older
1
2
3
4
# Extra autoconf macros for the Glasgow fptools
#
# To be a good autoconf citizen, names of local macros have prefixed with FP_ to
# ensure we don't clash with any pre-supplied autoconf ones.
sof's avatar
sof committed
5

6

7
8
9
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
# FPTOOLS_SET_PLATFORM_VARS
# ----------------------------------
# Set the platform variables
AC_DEFUN([FPTOOLS_SET_PLATFORM_VARS],
[
    # If no argument was given for a configuration variable, then discard
    # the guessed canonical system and use the configuration of the
    # bootstrapping ghc. If an argument was given, map it from gnu format
    # to ghc format.
    #
    # For why we do it this way, see: #3637, #1717, #2951
    #
    # In bindists, we haven't called AC_CANONICAL_{BUILD,HOST,TARGET}
    # so this justs uses $bootstrap_target.

    if test "$build_alias" = ""
    then
        if test "$bootstrap_target" != ""
        then
            build=$bootstrap_target
            echo "Build platform inferred as: $build"
        else
            echo "Can't work out build platform"
            exit 1
        fi

        BuildArch=`echo "$build" | sed 's/-.*//'`
        BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
        BuildOS=`echo "$build" | sed 's/.*-//'`
    else
        GHC_CONVERT_CPU([$build_cpu], [BuildArch])
        GHC_CONVERT_VENDOR([$build_vendor], [BuildVendor])
        GHC_CONVERT_OS([$build_os], [BuildOS])
    fi

    if test "$host_alias" = ""
    then
        if test "$bootstrap_target" != ""
        then
            host=$bootstrap_target
            echo "Host platform inferred as: $host"
        else
            echo "Can't work out host platform"
            exit 1
        fi

        HostArch=`echo "$host" | sed 's/-.*//'`
        HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
        HostOS=`echo "$host" | sed 's/.*-//'`
    else
        GHC_CONVERT_CPU([$host_cpu], [HostArch])
        GHC_CONVERT_VENDOR([$host_vendor], [HostVendor])
        GHC_CONVERT_OS([$host_os], [HostOS])
    fi

    if test "$target_alias" = ""
    then
        if test "$bootstrap_target" != ""
        then
            target=$bootstrap_target
            echo "Target platform inferred as: $target"
        else
            echo "Can't work out target platform"
            exit 1
        fi

        TargetArch=`echo "$target" | sed 's/-.*//'`
        TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
        TargetOS=`echo "$target" | sed 's/.*-//'`
    else
        GHC_CONVERT_CPU([$target_cpu], [TargetArch])
        GHC_CONVERT_VENDOR([$target_vendor], [TargetVendor])
        GHC_CONVERT_OS([$target_os], [TargetOS])
    fi
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102

    windows=NO
    exeext=''
    soext='.so'
    case $host in
    *-unknown-cygwin32)
        AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
        AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
        exit 1
        ;;
    *-unknown-mingw32)
        windows=YES
        exeext='.exe'
        soext='.dll'
        ;;
    i386-apple-darwin|powerpc-apple-darwin)
        soext='.dylib'
        ;;
    x86_64-apple-darwin)
        soext='.dylib'
        ;;
    esac
103

104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
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
    BuildPlatform="$BuildArch-$BuildVendor-$BuildOS"
    BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
    BuildArch_CPP=`    echo "$BuildArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
    BuildVendor_CPP=`  echo "$BuildVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
    BuildOS_CPP=`      echo "$BuildOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`

    HostPlatform="$HostArch-$HostVendor-$HostOS"
    HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
    HostArch_CPP=`    echo "$HostArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
    HostVendor_CPP=`  echo "$HostVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
    HostOS_CPP=`      echo "$HostOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`

    TargetPlatform="$TargetArch-$TargetVendor-$TargetOS"
    TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
    TargetArch_CPP=`    echo "$TargetArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
    TargetVendor_CPP=`  echo "$TargetVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
    TargetOS_CPP=`      echo "$TargetOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`

    echo "GHC build  : $BuildPlatform"
    echo "GHC host   : $HostPlatform"
    echo "GHC target : $TargetPlatform"

    AC_SUBST(BuildPlatform)
    AC_SUBST(HostPlatform)
    AC_SUBST(TargetPlatform)
    AC_SUBST(HostPlatform_CPP)
    AC_SUBST(BuildPlatform_CPP)
    AC_SUBST(TargetPlatform_CPP)

    AC_SUBST(HostArch_CPP)
    AC_SUBST(BuildArch_CPP)
    AC_SUBST(TargetArch_CPP)

    AC_SUBST(HostOS_CPP)
    AC_SUBST(BuildOS_CPP)
    AC_SUBST(TargetOS_CPP)

    AC_SUBST(HostVendor_CPP)
    AC_SUBST(BuildVendor_CPP)
    AC_SUBST(TargetVendor_CPP)

    AC_SUBST(exeext)
    AC_SUBST(soext)
])


# FPTOOLS_SET_HASKELL_PLATFORM_VARS
# ----------------------------------
# Set the Haskell platform variables
AC_DEFUN([FPTOOLS_SET_HASKELL_PLATFORM_VARS],
[
155
156
    checkArch() {
        case [$]1 in
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
        i386)
            test -z "[$]2" || eval "[$]2=ArchX86"
            ;;
        x86_64)
            test -z "[$]2" || eval "[$]2=ArchX86_64"
            ;;
        powerpc)
            test -z "[$]2" || eval "[$]2=ArchPPC"
            ;;
        powerpc64)
            test -z "[$]2" || eval "[$]2=ArchPPC_64"
            ;;
        sparc)
            test -z "[$]2" || eval "[$]2=ArchSPARC"
            ;;
        arm)
            GET_ARM_ISA()
174
            test -z "[$]2" || eval "[$]2=\"ArchARM {armISA = \$ARM_ISA, armISAExt = \$ARM_ISA_EXT}\""
175
            ;;
176
        alpha|mips|mipseb|mipsel|hppa|hppa1_1|ia64|m68k|rs6000|s390|s390x|sparc64|vax)
177
            test -z "[$]2" || eval "[$]2=ArchUnknown"
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
            ;;
        *)
            echo "Unknown arch [$]1"
            exit 1
            ;;
        esac
    }

    checkVendor() {
        case [$]1 in
        dec|unknown|hp|apple|next|sun|sgi|ibm)
            ;;
        *)
            echo "Unknown vendor [$]1"
            exit 1
            ;;
        esac
    }

    checkOS() {
        case [$]1 in
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
        linux)
            test -z "[$]2" || eval "[$]2=OSLinux"
            ;;
        darwin)
            test -z "[$]2" || eval "[$]2=OSDarwin"
            ;;
        solaris2)
            test -z "[$]2" || eval "[$]2=OSSolaris2"
            ;;
        mingw32)
            test -z "[$]2" || eval "[$]2=OSMinGW32"
            ;;
        freebsd)
            test -z "[$]2" || eval "[$]2=OSFreeBSD"
            ;;
214
215
216
        kfreebsdgnu)
            test -z "[$]2" || eval "[$]2=OSKFreeBSD"
            ;;
217
218
219
        openbsd)
            test -z "[$]2" || eval "[$]2=OSOpenBSD"
            ;;
Ian Lynagh's avatar
Ian Lynagh committed
220
221
222
        netbsd)
            test -z "[$]2" || eval "[$]2=OSNetBSD"
            ;;
223
        dragonfly|osf1|osf3|hpux|linuxaout|freebsd2|cygwin32|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix|haiku)
224
            test -z "[$]2" || eval "[$]2=OSUnknown"
225
226
227
228
229
230
            ;;
        *)
            echo "Unknown OS '[$]1'"
            exit 1
            ;;
        esac
231
    }
232

233
234
235
236
237
238
239
240
241
242
243
244
245
246
    dnl ** check for Apple-style dead-stripping support
    dnl    (.subsections-via-symbols assembler directive)

    AC_MSG_CHECKING(for .subsections_via_symbols)
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
        [AC_MSG_RESULT(yes)
         HaskellHaveSubsectionsViaSymbols=True
         AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
                   [Define to 1 if Apple-style dead-stripping is supported.])
        ],
        [HaskellHaveSubsectionsViaSymbols=False
         AC_MSG_RESULT(no)])

247
248
249
250
251
252
253
254
255
256
    dnl ** check for .ident assembler directive

    AC_MSG_CHECKING(whether your assembler supports .ident directive)
    AC_COMPILE_IFELSE(
        [AC_LANG_SOURCE([__asm__ (".ident \"GHC x.y.z\"");])],
        [AC_MSG_RESULT(yes)
         HaskellHaveIdentDirective=True],
        [AC_MSG_RESULT(no)
         HaskellHaveIdentDirective=False])

257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
    dnl *** check for GNU non-executable stack note support (ELF only)
    dnl     (.section .note.GNU-stack,"",@progbits)

    dnl This test doesn't work with "gcc -g" in gcc 4.4 (GHC trac #3889:
    dnl     Error: can't resolve `.note.GNU-stack' {.note.GNU-stack section} - `.Ltext0' {.text section}
    dnl so we empty CFLAGS while running this test
    CFLAGS2="$CFLAGS"
    CFLAGS=
    AC_MSG_CHECKING(for GNU non-executable stack support)
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
        [AC_MSG_RESULT(yes)
         HaskellHaveGnuNonexecStack=True],
        [AC_MSG_RESULT(no)
         HaskellHaveGnuNonexecStack=False])
    CFLAGS="$CFLAGS2"

274
275
276
277
278
279
280
281
282
283
284
285
286
287
    checkArch "$BuildArch" ""
    checkVendor "$BuildVendor"
    checkOS "$BuildOS" ""

    checkArch "$HostArch" ""
    checkVendor "$HostVendor"
    checkOS "$HostOS" ""

    checkArch "$TargetArch" "HaskellTargetArch"
    checkVendor "$TargetVendor"
    checkOS "$TargetOS" "HaskellTargetOs"

    AC_SUBST(HaskellTargetArch)
    AC_SUBST(HaskellTargetOs)
288
    AC_SUBST(HaskellHaveSubsectionsViaSymbols)
289
    AC_SUBST(HaskellHaveIdentDirective)
290
    AC_SUBST(HaskellHaveGnuNonexecStack)
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
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
])


# GET_ARM_ISA
# ----------------------------------
# Get info about the ISA on the Arm arch
AC_DEFUN([GET_ARM_ISA],
[
    AC_COMPILE_IFELSE([
        AC_LANG_PROGRAM(
            [],
            [#if defined(__ARM_ARCH_2__)  || \
                 defined(__ARM_ARCH_3__)  || \
                 defined(__ARM_ARCH_3M__) || \
                 defined(__ARM_ARCH_4__)  || \
                 defined(__ARM_ARCH_4T__) || \
                 defined(__ARM_ARCH_5__)  || \
                 defined(__ARM_ARCH_5T__) || \
                 defined(__ARM_ARCH_5E__) || \
                 defined(__ARM_ARCH_5TE__)
                 return 0;
             #else
                 not pre arm v6
             #endif]
        )],
        [AC_DEFINE(arm_HOST_ARCH_PRE_ARMv6, 1, [ARM pre v6])
         AC_DEFINE(arm_HOST_ARCH_PRE_ARMv7, 1, [ARM pre v7])
         changequote(, )dnl
         ARM_ISA=ARMv5
         ARM_ISA_EXT="[]"
         changequote([, ])dnl
        ],
        [
            AC_COMPILE_IFELSE([
                AC_LANG_PROGRAM(
                    [],
                    [#if defined(__ARM_ARCH_6__)   || \
                         defined(__ARM_ARCH_6J__)  || \
                         defined(__ARM_ARCH_6T2__) || \
                         defined(__ARM_ARCH_6Z__)  || \
                         defined(__ARM_ARCH_6ZK__) || \
                         defined(__ARM_ARCH_6M__)
                         return 0;
                     #else
                         not pre arm v7
                     #endif]
                )],
                [AC_DEFINE(arm_HOST_ARCH_PRE_ARMv7, 1, [ARM pre v7])
                 changequote(, )dnl
                 ARM_ISA=ARMv6
                 ARM_ISA_EXT="[]"
                 changequote([, ])dnl
                ],
                [changequote(, )dnl
                 ARM_ISA=ARMv7
346
                 ARM_ISA_EXT="[VFPv3,NEON]"
347
348
349
                 changequote([, ])dnl
                ])
        ])
350
351
352
353
354
355
356
357
358
359
360
])


# FP_SETTINGS
# ----------------------------------
# Set the variables used in the settings file
AC_DEFUN([FP_SETTINGS],
[
    if test "$windows" = YES
    then
        SettingsCCompilerCommand='$topdir/../mingw/bin/gcc.exe'
361
        SettingsCCompilerFlags="$CONF_CC_OPTS_STAGE2 $CONF_GCC_LINKER_OPTS_STAGE2"
362
        SettingsArCommand='$topdir/../mingw/bin/ar.exe'
363
364
365
        SettingsPerlCommand='$topdir/../perl/perl.exe'
        SettingsDllWrapCommand='$topdir/../mingw/bin/dllwrap.exe'
        SettingsWindresCommand='$topdir/../mingw/bin/windres.exe'
Ian Lynagh's avatar
Ian Lynagh committed
366
        SettingsTouchCommand='$topdir/touchy.exe'
367
368
    else
        SettingsCCompilerCommand="$WhatGccIsCalled"
369
        SettingsCCompilerFlags="$CONF_CC_OPTS_STAGE2 $CONF_GCC_LINKER_OPTS_STAGE2"
370
        SettingsArCommand="$ArCmd"
371
372
373
374
        SettingsPerlCommand="$PerlCmd"
        SettingsDllWrapCommand="/bin/false"
        SettingsWindresCommand="/bin/false"
        SettingsTouchCommand='touch'
375
376
377
378
379
380
381
382
383
384
385
386
        if test -z "$LlcCmd"
        then
          SettingsLlcCommand="llc"
        else
          SettingsLlcCommand="$LlcCmd"
        fi
        if test -z "$OptCmd"
        then
          SettingsOptCommand="opt"
        else
          SettingsOptCommand="$OptCmd"
        fi
387
388
389
    fi
    AC_SUBST(SettingsCCompilerCommand)
    AC_SUBST(SettingsCCompilerFlags)
390
    AC_SUBST(SettingsArCommand)
391
392
393
394
    AC_SUBST(SettingsPerlCommand)
    AC_SUBST(SettingsDllWrapCommand)
    AC_SUBST(SettingsWindresCommand)
    AC_SUBST(SettingsTouchCommand)
395
396
    AC_SUBST(SettingsLlcCommand)
    AC_SUBST(SettingsOptCommand)
397
398
399
])


400
401
# FPTOOLS_SET_C_LD_FLAGS
# ----------------------------------
402
403
# Set the C, LD and CPP flags for a given platform
# $1 is the platform
404
405
406
407
# $2 is the name of the CC flags variable
# $3 is the name of the linker flags variable when linking with gcc
# $4 is the name of the linker flags variable when linking with ld
# $5 is the name of the CPP flags variable
408
409
AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS],
[
410
    AC_MSG_CHECKING([Setting up $2, $3, $4 and $5])
411
    case $$1 in
412
    i386-apple-darwin)
413
414
        $2="$$2 -m32"
        $3="$$3 -m32"
415
        $4="$$4 -arch i386"
416
        $5="$$5 -m32"
417
418
419
        ;;
    x86_64-apple-darwin)
        $2="$$2 -m64"
420
        $3="$$3 -m64"
421
422
        $4="$$4 -arch x86_64"
        $5="$$5 -m64"
423
        ;;
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
    alpha-*)
        # For now, to suppress the gcc warning "call-clobbered
        # register used for global register variable", we simply
        # disable all warnings altogether using the -w flag. Oh well.
        $2="$$2 -w -mieee -D_REENTRANT"
        $3="$$3 -w -mieee -D_REENTRANT"
        $5="$$5 -w -mieee -D_REENTRANT"
        ;;
    hppa*)
        # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
        # (very nice, but too bad the HP /usr/include files don't agree.)
        $2="$$2 -D_HPUX_SOURCE"
        $3="$$3 -D_HPUX_SOURCE"
        $5="$$5 -D_HPUX_SOURCE"
        ;;
439
    esac
440
441
442
443
444
445
446
447

    # If gcc knows about the stack protector, turn it off.
    # Otherwise the stack-smash handler gets triggered.
    echo 'int main(void) {return 0;}' > conftest.c
    if $CC -c conftest.c -fno-stack-protector > /dev/null 2>&1
    then
        $2="$$2 -fno-stack-protector"
    fi
448
449

    # Reduce memory usage when linking. See trac #5240.
450
451
452
453
454
455
456
457
458
459
    if test -n "$LdHashSize31"
    then
        $3="$$3 -Wl,$LdHashSize31"
        $4="$$4     $LdHashSize31"
    fi
    if test -n "$LdReduceMemoryOverheads"
    then
        $3="$$3 -Wl,$LdReduceMemoryOverheads"
        $4="$$4     $LdReduceMemoryOverheads"
    fi
460

Ian Lynagh's avatar
Ian Lynagh committed
461
    rm -f conftest.c conftest.o
Ian Lynagh's avatar
Ian Lynagh committed
462
    AC_MSG_RESULT([done])
463
464
465
])


466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
# FP_VISIBILITY_HIDDEN
# ----------------------------------
# Is the visibility hidden attribute supported?
AC_DEFUN([FP_VISIBILITY_HIDDEN],
[
    AC_MSG_CHECKING([whether __attribute__((visibility("hidden"))) is supported])
    echo '__attribute__((visibility("hidden"))) void foo(void) {}' > conftest.c
    if $CC -Wall -Werror -c conftest.c > /dev/null 2>&1
    then
        AC_MSG_RESULT([yes])
        AC_DEFINE(HAS_VISIBILITY_HIDDEN, 1, [Has visibility hidden])
    else
        AC_MSG_RESULT([no])
    fi
    rm -f conftest.c conftest.o
])


484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
# FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
# ----------------------------------
# Little endian Arm on Linux with some ABIs has big endian word order
# in doubles. Define FLOAT_WORDS_BIGENDIAN if this is the case.
AC_DEFUN([FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN],
  [AC_CACHE_CHECK([whether float word order is big endian], [fptools_cv_float_word_order_bigendian],
    [AC_COMPILE_IFELSE(
      [AC_LANG_PROGRAM(
        [#include <endian.h>],
        [#if defined(__FLOAT_WORD_ORDER) && __FLOAT_WORD_ORDER == BIG_ENDIAN
             return 0;
         #else
             not float word order big endian
         #endif]
      )],
      [fptools_cv_float_word_order_bigendian=yes],
      [fptools_cv_float_word_order_bigendian=no])
    ])
  case $fptools_cv_float_word_order_bigendian in
      yes)
          AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1,
          [Define to 1 if your processor stores words of floats with
           the most significant byte first]) ;;
  esac
])


511
# FP_EVAL_STDERR(COMMAND)
512
# -----------------------
513
514
515
516
517
518
519
520
521
522
523
# Eval COMMAND, save its stderr (without lines resulting from shell tracing)
# into the file conftest.err and the exit status in the variable fp_status.
AC_DEFUN([FP_EVAL_STDERR],
[{ (eval $1) 2>conftest.er1
  fp_status=$?
  grep -v '^ *+' conftest.er1 >conftest.err
  rm -f conftest.er1
  (exit $fp_status); }[]dnl
])# FP_EVAL_STDERR


524
525
526
527
# FP_ARG_WITH_PATH_GNU_PROG
# --------------------
# XXX
#
528
529
# $1 = the variable to set
# $2 = the command to look for
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
#
AC_DEFUN([FP_ARG_WITH_PATH_GNU_PROG],
[
AC_ARG_WITH($2,
[AC_HELP_STRING([--with-$2=ARG],
        [Use ARG as the path to $2 [default=autodetect]])],
[
    if test "$HostOS" = "mingw32"
    then
        AC_MSG_WARN([Request to use $withval will be ignored])
    else
        $1=$withval
    fi
],
[
    if test "$HostOS" != "mingw32"
    then
        AC_PATH_PROG([$1], [$2])
        if test -z "$$1"
        then
            AC_MSG_ERROR([cannot find $2 in your PATH, no idea how to link])
        fi
    fi
]
)
]) # FP_ARG_WITH_PATH_GNU_PROG


558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
# FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL
# --------------------
# XXX
#
# $1 = the variable to set
# $2 = the command to look for
#
AC_DEFUN([FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL],
[
AC_ARG_WITH($2,
[AC_HELP_STRING([--with-$2=ARG],
        [Use ARG as the path to $2 [default=autodetect]])],
[
    if test "$HostOS" = "mingw32"
    then
        AC_MSG_WARN([Request to use $withval will be ignored])
    else
        $1=$withval
    fi
],
[
    if test "$HostOS" != "mingw32"
    then
        AC_PATH_PROG([$1], [$2])
    fi
]
)
]) # FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL

587
588
589
# FP_PROG_CONTEXT_DIFF
# --------------------
# Figure out how to do context diffs. Sets the output variable ContextDiffCmd.
590
591
592
593
#
# Note: NeXTStep thinks diff'ing a file against itself is "trouble".
#
# Used by ghc, glafp-utils/ltx, and glafp-utils/runstdtest.
594
595
596
597
598
AC_DEFUN([FP_PROG_CONTEXT_DIFF],
[AC_CACHE_CHECK([for a working context diff], [fp_cv_context_diff],
[echo foo > conftest1
echo foo > conftest2
fp_cv_context_diff=no
Ian Lynagh's avatar
Ian Lynagh committed
599
for fp_var in '-U 1' '-u1' '-C 1' '-c1'
600
601
602
603
604
605
606
607
608
609
610
611
612
do
  if diff $fp_var conftest1 conftest2 > /dev/null 2>&1; then
    fp_cv_context_diff="diff $fp_var"
    break
  fi
done])
if test x"$fp_cv_context_diff" = xno; then
   AC_MSG_ERROR([cannot figure out how to do context diffs])
fi
AC_SUBST(ContextDiffCmd, [$fp_cv_context_diff])
])# FP_PROG_CONTEXT_DIFF


613
# FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
614
# --------------------------------------------------------
615
616
617
# Assign VARIABLE the value of the compile-time EXPRESSION using INCLUDES for
# compilation. Execute IF-FAILS when unable to determine the value. Works for
# cross-compilation, too.
618
619
620
621
#
# Implementation note: We are lazy and use an internal autoconf macro, but it
# is supported in autoconf versions 2.50 up to the actual 2.57, so there is
# little risk.
622
623
624
625
626
627
628
629
630
631
AC_DEFUN([FP_COMPUTE_INT],
[_AC_COMPUTE_INT([$1], [$2], [$3], [$4])[]dnl
])# FP_COMPUTE_INT


# FP_CHECK_ALIGNMENT(TYPE, [IGNORED], [INCLUDES = DEFAULT-INCLUDES])
# ------------------------------------------------------------------
# A variation of AC_CHECK_SIZEOF for computing the alignment restrictions of a
# given type. Defines ALIGNMENT_TYPE.
AC_DEFUN([FP_CHECK_ALIGNMENT],
632
[AS_LITERAL_IF(m4_translit([[$1]], [*], [p]), [],
633
               [AC_FATAL([$0: requires literal arguments])])[]dnl
634
635
636
AC_CHECK_TYPE([$1], [], [], [$3])[]dnl
m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl
AC_CACHE_CHECK([alignment of $1], [fp_Cache],
637
638
[if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then
  FP_COMPUTE_INT([(long) (&((struct { char c; $1 ty; } *)0)->ty)],
639
                 [fp_Cache],
640
                 [AC_INCLUDES_DEFAULT([$3])],
641
642
                 [AC_MSG_ERROR([cannot compute alignment ($1)
See `config.log' for more details.], [77])])
643
else
644
645
646
647
  fp_Cache=0
fi])[]dnl
AC_DEFINE_UNQUOTED(AS_TR_CPP(alignment_$1), $fp_Cache, [The alignment of a `$1'.])[]dnl
m4_popdef([fp_Cache])[]dnl
648
649
650
])# FP_CHECK_ALIGNMENT


651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
# FP_LEADING_UNDERSCORE
# ---------------------
# Test for determining whether symbol names have a leading underscore. We assume
# that they _haven't_ if anything goes wrong. Sets the output variable
# LeadingUnderscore to YES or NO and defines LEADING_UNDERSCORE correspondingly.
#
# Some nlist implementations seem to try to be compatible by ignoring a leading
# underscore sometimes (eg. FreeBSD). We therefore have to work around this by
# checking for *no* leading underscore first. Sigh.  --SDM
#
# Similarly on OpenBSD, but this test doesn't help. -- dons
AC_DEFUN([FP_LEADING_UNDERSCORE],
[AC_CHECK_LIB([elf], [nlist], [LIBS="-lelf $LIBS"])
AC_CACHE_CHECK([leading underscore in symbol names], [fptools_cv_leading_underscore], [
# Hack!: nlist() under Digital UNIX insist on there being an _,
# but symbol table listings shows none. What is going on here?!?
#
# Another hack: cygwin doesn't come with nlist.h , so we hardwire
# the underscoredness of that "platform"
670
case $HostPlatform in
dons's avatar
dons committed
671
*openbsd*) # x86 openbsd is ELF from 3.4 >, meaning no leading uscore
672
673
674
675
676
677
678
  case $build in
    i386-*2\.@<:@0-9@:>@ | i386-*3\.@<:@0-3@:>@ ) fptools_cv_leading_underscore=yes ;;
    *) fptools_cv_leading_underscore=no ;;
  esac ;;
alpha-dec-osf*) fptools_cv_leading_underscore=no;;
*cygwin32) fptools_cv_leading_underscore=yes;;
*mingw32) fptools_cv_leading_underscore=yes;;
679
680
681
682

    # HACK: Apple doesn't seem to provide nlist in the 64-bit-libraries
x86_64-apple-darwin*) fptools_cv_leading_underscore=yes;;

683
*) AC_RUN_IFELSE([AC_LANG_SOURCE([[#ifdef HAVE_NLIST_H
sof's avatar
sof committed
684
#include <nlist.h>
685
686
struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}};
struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}};
sof's avatar
sof committed
687
688
#endif

689
690
691
int main(argc, argv)
int argc;
char **argv;
sof's avatar
sof committed
692
693
{
#ifdef HAVE_NLIST_H
694
695
696
    if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0)
        exit(1);
    if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0)
697
        exit(0);
sof's avatar
sof committed
698
699
#endif
    exit(1);
700
}]])],[fptools_cv_leading_underscore=yes],[fptools_cv_leading_underscore=no],[fptools_cv_leading_underscore=no])
701
;;
702
703
704
705
706
esac]);
AC_SUBST([LeadingUnderscore], [`echo $fptools_cv_leading_underscore | sed 'y/yesno/YESNO/'`])
if test x"$fptools_cv_leading_underscore" = xyes; then
   AC_DEFINE([LEADING_UNDERSCORE], [1], [Define to 1 if C symbols have a leading underscore added by the compiler.])
fi])# FP_LEADING_UNDERSCORE
sof's avatar
sof committed
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

# FP_COMPARE_VERSIONS(VERSION1, TEST, VERSION2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
# ----------------------------------------------------------------------------------
# Compare dotted version numbers VERSION1 and VERSION2 lexicographically according
# to TEST (one of -eq, -ne, -lt, -le, -gt, or -ge).
AC_DEFUN([FP_COMPARE_VERSIONS],
[fp_version1=$1; fp_version2=$3
fp_save_IFS=$IFS; IFS='.'
while test x"$fp_version1" != x || test x"$fp_version2" != x
do

  set dummy $fp_version1; shift
  fp_num1=""
  test $[@%:@] = 0 || { fp_num1="[$]1"; shift; }
  test x"$fp_num1" = x && fp_num1="0"
  fp_version1="[$]*"

  set dummy $fp_version2; shift
  fp_num2=""
  test $[@%:@] = 0 || { fp_num2="[$]1"; shift; }
  test x"$fp_num2" = x && fp_num2="0"
  fp_version2="[$]*"

  test "$fp_num1" = "$fp_num2" || break;
done
IFS=$fp_save_IFS
AS_IF([test "$fp_num1" $2 "$fp_num2"], [$4], [$5])[]dnl
])# FP_COMPARE_VERSIONS
736
737


reid's avatar
reid committed
738
dnl
739
dnl Check for GreenCard and version.
reid's avatar
reid committed
740
dnl
741
AC_DEFUN([FPTOOLS_GREENCARD],
reid's avatar
reid committed
742
[
743
AC_PATH_PROG(GreenCardCmd,greencard)
reid's avatar
reid committed
744
AC_CACHE_CHECK([for version of greencard], fptools_cv_greencard_version,
reid's avatar
reid committed
745
changequote(, )dnl
746
747
[if test x"$GreenCardCmd" != x; then
   fptools_cv_greencard_version="`$GreenCardCmd --version |
reid's avatar
reid committed
748
			  grep 'version' | sed -e 's/greencard. version \([^ ]*\).*/\1/g'`"
reid's avatar
reid committed
749
750
751
752
753
else
   fptools_cv_greencard_version=""
fi
changequote([, ])dnl
])
754
755
FP_COMPARE_VERSIONS([$fptools_cv_greencard_version],[-lt],[$1],
  [AC_MSG_ERROR([greencard version $1 or later is required (found '$fptools_cv_greencard_version')])])[]dnl
756
757
GreenCardVersion=$fptools_cv_greencard_version
AC_SUBST(GreenCardVersion)
reid's avatar
reid committed
758
759
])

sof's avatar
sof committed
760
dnl
761
dnl Check for Happy and version.  If we're building GHC, then we need
762
dnl at least Happy version 1.14.  If there's no installed Happy, we look
763
764
dnl for a happy source tree and point the build system at that instead.
dnl
765
AC_DEFUN([FPTOOLS_HAPPY],
766
[AC_PATH_PROG(HappyCmd,happy,)
767
768
769
770
771
772
# Happy is passed to Cabal, so we need a native path
if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
   test "${OSTYPE}"      != "msys"                  && \
   test "${HappyCmd}"    != ""
then
    # Canonicalise to <drive>:/path/to/gcc
773
    HappyCmd=`cygpath -m "${HappyCmd}"`
774
775
776
    AC_MSG_NOTICE([normalized happy command to $HappyCmd])
fi

sof's avatar
sof committed
777
AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
sof's avatar
sof committed
778
changequote(, )dnl
779
[if test x"$HappyCmd" != x; then
780
781
   fptools_cv_happy_version=`"$HappyCmd" -v |
			  grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'` ;
sof's avatar
sof committed
782
else
sof's avatar
sof committed
783
   fptools_cv_happy_version="";
sof's avatar
sof committed
784
fi;
785
changequote([, ])dnl
786
])
787
if test ! -f compiler/parser/Parser.hs || test ! -f compiler/cmm/CmmParse.hs || test ! -f compiler/parser/ParserCore.hs
788
then
789
790
    FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.16],
      [AC_MSG_ERROR([Happy version 1.16 or later is required to compile GHC.])])[]
791
fi
792
HappyVersion=$fptools_cv_happy_version;
sof's avatar
sof committed
793
794
795
AC_SUBST(HappyVersion)
])

796
797
dnl
dnl Check for Alex and version.  If we're building GHC, then we need
Ian Lynagh's avatar
Ian Lynagh committed
798
dnl at least Alex version 2.0.1.
799
dnl
800
AC_DEFUN([FPTOOLS_ALEX],
801
[
802
AC_PATH_PROG(AlexCmd,alex,)
803
804
805
806
807
808
# Alex is passed to Cabal, so we need a native path
if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
   test "${OSTYPE}"      != "msys"                  && \
   test "${AlexCmd}"     != ""
then
    # Canonicalise to <drive>:/path/to/gcc
809
    AlexCmd=`cygpath -m "${AlexCmd}"`
810
811
fi

812
813
AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version,
changequote(, )dnl
814
[if test x"$AlexCmd" != x; then
815
816
   fptools_cv_alex_version=`"$AlexCmd" -v |
			  grep 'Alex [Vv]ersion' | sed -e 's/Alex [Vv]ersion \([0-9\.]*\).*/\1/g'` ;
817
818
819
820
821
else
   fptools_cv_alex_version="";
fi;
changequote([, ])dnl
])
822
823
if test ! -f compiler/cmm/CmmLex.hs || test ! -f compiler/parser/Lexer.hs
then
Simon Marlow's avatar
Simon Marlow committed
824
    FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[2.1.0],
825
      [AC_MSG_ERROR([Alex version 2.1.0 or later is required to compile GHC.])])[]
826
827
    FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-ge],[3.0],
      [Alex3=YES],[Alex3=NO])
828
fi
829
830
AlexVersion=$fptools_cv_alex_version;
AC_SUBST(AlexVersion)
831
AC_SUBST(Alex3)
832
833
])

sof's avatar
sof committed
834

835
836
837
838
839
# FP_PROG_LD_FLAG
# ---------------
# Sets the output variable $2 to $1 if ld supports the $1 flag.
# Otherwise the variable's value is empty.
AC_DEFUN([FP_PROG_LD_FLAG],
840
[
841
AC_CACHE_CHECK([whether ld understands $1], [fp_cv_$2],
842
[echo 'foo() {}' > conftest.c
843
${CC-cc} -c conftest.c
844
845
if ${LdCmd} -r $1 -o conftest2.o conftest.o > /dev/null 2>&1; then
   fp_cv_$2=$1
846
else
847
   fp_cv_$2=
848
fi
849
rm -rf conftest*])
850
851
852
853
854
855
856
857
858
859
860
$2=$fp_cv_$2
])# FP_PROG_LD_FLAG


# FP_PROG_LD_X
# ------------
# Sets the output variable LdXFlag to -x if ld supports this flag.
# Otherwise the variable's value is empty.
AC_DEFUN([FP_PROG_LD_X],
[
FP_PROG_LD_FLAG([-x],[LdXFlag])
861
862
863
864
AC_SUBST([LdXFlag])
])# FP_PROG_LD_X


865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
# FP_PROG_LD_HashSize31
# ------------
# Sets the output variable LdHashSize31 to --hash-size=31 if ld supports
# this flag. Otherwise the variable's value is empty.
AC_DEFUN([FP_PROG_LD_HashSize31],
[
FP_PROG_LD_FLAG([--hash-size=31],[LdHashSize31])
])# FP_PROG_LD_HashSize31


# FP_PROG_LD_ReduceMemoryOverheads
# ------------
# Sets the output variable LdReduceMemoryOverheads to
# --reduce-memory-overheads if ld supports this flag.
# Otherwise the variable's value is empty.
AC_DEFUN([FP_PROG_LD_ReduceMemoryOverheads],
[
FP_PROG_LD_FLAG([--reduce-memory-overheads],[LdReduceMemoryOverheads])
])# FP_PROG_LD_ReduceMemoryOverheads


886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
# FP_PROG_LD_BUILD_ID
# ------------

# Sets the output variable LdHasBuildId to YES if ld supports
# --build-id, or NO otherwise.
AC_DEFUN([FP_PROG_LD_BUILD_ID],
[
AC_CACHE_CHECK([whether ld understands --build-id], [fp_cv_ld_build_id],
[echo 'foo() {}' > conftest.c
${CC-cc} -c conftest.c
if ${LdCmd} -r --build-id=none -o conftest2.o conftest.o > /dev/null 2>&1; then
   fp_cv_ld_build_id=yes
else
   fp_cv_ld_build_id=no
fi
rm -rf conftest*])
if test "$fp_cv_ld_build_id" = yes; then
  LdHasBuildId=YES
else
  LdHasBuildId=NO
fi
AC_SUBST([LdHasBuildId])
])# FP_PROG_LD_BUILD_ID


911
912
913
914
915
# FP_PROG_LD_IS_GNU
# -----------------
# Sets the output variable LdIsGNULd to YES or NO, depending on whether it is
# GNU ld or not.
AC_DEFUN([FP_PROG_LD_IS_GNU],
916
[
917
918
919
920
921
922
923
924
AC_CACHE_CHECK([whether ld is GNU ld], [fp_cv_gnu_ld],
[if ${LdCmd} --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
  fp_cv_gnu_ld=yes
else
  fp_cv_gnu_ld=no
fi])
AC_SUBST([LdIsGNULd], [`echo $fp_cv_gnu_ld | sed 'y/yesno/YESNO/'`])
])# FP_PROG_LD_IS_GNU
925

sof's avatar
sof committed
926

927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
# FP_PROG_LD_NO_COMPACT_UNWIND
# ----------------------------

# Sets the output variable LdHasNoCompactUnwind to YES if ld supports
# -no_compact_unwind, or NO otherwise.
AC_DEFUN([FP_PROG_LD_NO_COMPACT_UNWIND],
[
AC_CACHE_CHECK([whether ld understands -no_compact_unwind], [fp_cv_ld_no_compact_unwind],
[echo 'foo() {}' > conftest.c
${CC-cc} -c conftest.c
if ${LdCmd} -r -no_compact_unwind -o conftest2.o conftest.o > /dev/null 2>&1; then
   fp_cv_ld_no_compact_unwind=yes
else
   fp_cv_ld_no_compact_unwind=no
fi
rm -rf conftest*])
if test "$fp_cv_ld_no_compact_unwind" = yes; then
  LdHasNoCompactUnwind=YES
else
  LdHasNoCompactUnwind=NO
fi
AC_SUBST([LdHasNoCompactUnwind])
])# FP_PROG_LD_NO_COMPACT_UNWIND


952
953
954
955
956
957
958
959
# FP_PROG_AR
# ----------
# Sets fp_prog_ar_raw to the full path of ar and fp_prog_ar to a non-Cygwin
# version of it. Exits if no ar can be found
AC_DEFUN([FP_PROG_AR],
[AC_PATH_PROG([fp_prog_ar_raw], [ar])
if test -z "$fp_prog_ar_raw"; then
  AC_MSG_ERROR([cannot find ar in your PATH, no idea how to make a library])
sof's avatar
sof committed
960
fi
Ian Lynagh's avatar
Ian Lynagh committed
961
fp_prog_ar="$fp_prog_ar_raw"
sof's avatar
sof committed
962
case $HostPlatform in
963
  *mingw32) if test x${OSTYPE} != xmsys; then
Ian Lynagh's avatar
Ian Lynagh committed
964
 	      fp_prog_ar="`cygpath -w "${fp_prog_ar_raw}" | sed -e 's@\\\\@/@g'`"
965
966
967
              AC_MSG_NOTICE([normalized ar command to $fp_prog_ar])
            fi
            ;;
sof's avatar
sof committed
968
esac
969
970
971
972
973
974
975
976
977
])# FP_PROG_AR


# FP_PROG_AR_IS_GNU
# -----------------
# Sets fp_prog_ar_is_gnu to yes or no, depending on whether it is GNU ar or not.
AC_DEFUN([FP_PROG_AR_IS_GNU],
[AC_REQUIRE([FP_PROG_AR])
AC_CACHE_CHECK([whether $fp_prog_ar_raw is GNU ar], [fp_cv_prog_ar_is_gnu],
Ian Lynagh's avatar
Ian Lynagh committed
978
[if "$fp_prog_ar_raw" --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
979
980
981
982
983
  fp_cv_prog_ar_is_gnu=yes
else
  fp_cv_prog_ar_is_gnu=no
fi])
fp_prog_ar_is_gnu=$fp_cv_prog_ar_is_gnu
Ian Lynagh's avatar
Ian Lynagh committed
984
AC_SUBST([ArIsGNUAr], [`echo $fp_prog_ar_is_gnu | tr 'a-z' 'A-Z'`])
985
986
987
])# FP_PROG_AR_IS_GNU


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
# FP_PROG_AR_SUPPORTS_ATFILE
# -----------------
# Sets fp_prog_ar_supports_atfile to yes or no, depending on whether
# or not it supports the @file syntax
AC_DEFUN([FP_PROG_AR_SUPPORTS_ATFILE],
[AC_REQUIRE([FP_PROG_AR])
 AC_REQUIRE([FP_PROG_AR_ARGS])
AC_CACHE_CHECK([whether $fp_prog_ar_raw supports @file], [fp_cv_prog_ar_supports_atfile],
[
rm -f conftest*
touch conftest.file
echo conftest.file  > conftest.atfile
echo conftest.file >> conftest.atfile
"$fp_prog_ar_raw" $fp_prog_ar_args conftest.a @conftest.atfile > /dev/null 2>&1
fp_prog_ar_supports_atfile_tmp=`"$fp_prog_ar_raw" t conftest.a 2> /dev/null | grep -c conftest.file`
rm -f conftest*
if test "$fp_prog_ar_supports_atfile_tmp" -eq 2
then
  fp_cv_prog_ar_supports_atfile=yes
else
  fp_cv_prog_ar_supports_atfile=no
fi])
fp_prog_ar_supports_atfile=$fp_cv_prog_ar_supports_atfile
AC_SUBST([ArSupportsAtFile], [`echo $fp_prog_ar_supports_atfile | tr 'a-z' 'A-Z'`])
])# FP_PROG_AR_SUPPORTS_ATFILE

1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
# FP_PROG_AR_ARGS
# ---------------
# Sets fp_prog_ar_args to the arguments for ar and the output variable ArCmd
# to a non-Cygwin invocation of ar including these arguments.
AC_DEFUN([FP_PROG_AR_ARGS],
[AC_REQUIRE([FP_PROG_AR_IS_GNU])
AC_CACHE_CHECK([for ar arguments], [fp_cv_prog_ar_args],
[
# GNU ar needs special treatment: it appears to have problems with
# object files with the same name if you use the 's' modifier, but
# simple 'ar q' works fine, and doesn't need a separate ranlib.
if test $fp_prog_ar_is_gnu = yes; then
  fp_cv_prog_ar_args="q"
else
  touch conftest.dummy
  for fp_var in clqsZ clqs cqs clq cq ; do
     rm -f conftest.a
1031
     if "$fp_prog_ar_raw" $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null; then
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
        fp_cv_prog_ar_args=$fp_var
        break
     fi
  done
  rm -f conftest*
  if test -z "$fp_cv_prog_ar_args"; then
    AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar_raw])
  fi
fi])
fp_prog_ar_args=$fp_cv_prog_ar_args
1042
1043
AC_SUBST([ArCmd], ["$fp_prog_ar"])
AC_SUBST([ArArgs], ["$fp_prog_ar_args"])
1044
1045
1046
1047
1048
1049
1050

])# FP_PROG_AR_ARGS


# FP_PROG_AR_NEEDS_RANLIB
# -----------------------
# Sets the output variable RANLIB to "ranlib" if it is needed and found,
1051
# to "true" otherwise.
1052
1053
1054
AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],
[AC_REQUIRE([FP_PROG_AR_IS_GNU])
AC_REQUIRE([FP_PROG_AR_ARGS])
1055
AC_REQUIRE([AC_PROG_CC])
1056
1057
1058
AC_CACHE_CHECK([whether ranlib is needed], [fp_cv_prog_ar_needs_ranlib],
[if test $fp_prog_ar_is_gnu = yes; then
  fp_cv_prog_ar_needs_ranlib=no
1059
elif echo $TargetPlatform | grep "^.*-apple-darwin$"  > /dev/null 2> /dev/null; then
1060
1061
1062
  # It's quite tedious to check for Apple's crazy timestamps in .a files,
  # so we hardcode it.
  fp_cv_prog_ar_needs_ranlib=yes
1063
1064
1065
1066
1067
1068
1069
elif echo $fp_prog_ar_args | grep "s" > /dev/null 2> /dev/null; then
  fp_cv_prog_ar_needs_ranlib=no
else
  fp_cv_prog_ar_needs_ranlib=yes
fi])
if test $fp_cv_prog_ar_needs_ranlib = yes; then
   AC_PROG_RANLIB
ken's avatar
ken committed
1070
else
1071
  RANLIB="true"
1072
  AC_SUBST([RANLIB])
ken's avatar
ken committed
1073
fi
1074
1075
1076
])# FP_PROG_AR_NEEDS_RANLIB


sof's avatar
sof committed
1077
dnl
sof's avatar
sof committed
1078
dnl AC_SHEBANG_PERL - can we she-bang perl?
sof's avatar
sof committed
1079
dnl
1080
AC_DEFUN([FPTOOLS_SHEBANG_PERL],
sof's avatar
sof committed
1081
[AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
sof's avatar
sof committed
1082
1083
1084
1085
1086
1087
[echo "#!$PerlCmd"'
exit $1;
' > conftest
chmod u+x conftest
(SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
if test $? -ne 69; then
sof's avatar
sof committed
1088
   fptools_cv_shebang_perl=yes
sof's avatar
sof committed
1089
else
sof's avatar
sof committed
1090
   fptools_cv_shebang_perl=no
sof's avatar
sof committed
1091
1092
1093
1094
fi
rm -f conftest
])])

1095

1096
# FP_GCC_VERSION
1097
1098
# -----------
# Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the
1099
# output variable GccVersion.
1100
AC_DEFUN([FP_GCC_VERSION],
1101
[AC_REQUIRE([AC_PROG_CC])
1102
1103
if test -z "$GCC"
then
1104
1105
  AC_MSG_ERROR([gcc is required])
fi
Ian Lynagh's avatar
Ian Lynagh committed
1106
1107
GccLT34=NO
GccLT46=NO
1108
AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
1109
1110
1111
1112
1113
1114
1115
1116
[
    fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`"
    FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.0],
                        [AC_MSG_ERROR([Need at least gcc version 3.0 (3.4+ recommended)])])
    # See #2770: gcc 2.95 doesn't work any more, apparently.  There probably
    # isn't a very good reason for that, but for now just make configure
    # fail.
    FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.4], GccLT34=YES)
Ian Lynagh's avatar
Ian Lynagh committed
1117
    FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [4.6], GccLT46=YES)
1118
])
1119
AC_SUBST([GccVersion], [$fp_cv_gcc_version])
1120
AC_SUBST(GccLT34)
Ian Lynagh's avatar
Ian Lynagh committed
1121
AC_SUBST(GccLT46)
1122
])# FP_GCC_VERSION
1123

1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
dnl Check to see if the C compiler uses an LLVM back end
dnl
AC_DEFUN([FP_CC_LLVM_BACKEND],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING([whether C compiler has an LLVM back end])
$CC -x c /dev/null -dM -E > conftest.txt 2>&1
if grep "__llvm__" conftest.txt >/dev/null 2>&1; then
  AC_SUBST([CC_LLVM_BACKEND], [1])
  AC_MSG_RESULT([yes])
else
  AC_SUBST([CC_LLVM_BACKEND], [0])
  AC_MSG_RESULT([no])
fi
rm -f conftest.txt
])

sof's avatar
sof committed
1140
dnl Small feature test for perl version. Assumes PerlCmd
1141
1142
1143
1144
dnl contains path to perl binary.
dnl
dnl (Perl versions prior to v5.6 does not contain the string "v5";
dnl instead they display version strings such as "version 5.005".)
sof's avatar
sof committed
1145
dnl
1146
AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION],
sof's avatar
sof committed
1147
[$PerlCmd -v >conftest.out 2>&1
1148
   if grep "v5" conftest.out >/dev/null 2>&1; then
dons's avatar
dons committed
1149
1150
      :
   else
1151
      AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.])
dons's avatar
dons committed
1152
   fi
sof's avatar
sof committed
1153
1154
rm -fr conftest*
])
reid's avatar
reid committed
1155

1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170

# FP_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR,
#               [VALUE-IF-NOT-FOUND], [PATH], [REJECT])
# -----------------------------------------------------
# HACK: A small wrapper around AC_CHECK_PROG, setting VARIABLE to the full path
# of PROG-TO-CHECK-FOR when found.
AC_DEFUN([FP_CHECK_PROG],
[AC_CHECK_PROG([$1], [$2], [$as_dir/$ac_word$ac_exec_ext], [$3], [$4], [$5])][]dnl
)# FP_CHECK_PROC


# FP_PROG_FIND
# ------------
# Find a non-WinDoze version of the "find" utility.
AC_DEFUN([FP_PROG_FIND],
Ian Lynagh's avatar
Ian Lynagh committed
1171
[AC_PATH_PROGS([fp_prog_find], [gfind find], find)
1172
1173
1174
1175
echo foo > conftest.txt
$fp_prog_find conftest.txt -print > conftest.out 2>&1
if grep '^conftest.txt$' conftest.out > /dev/null 2>&1 ; then
  # OK, looks like a real "find".
Ian Lynagh's avatar
Ian Lynagh committed
1176
1177
1178
1179
1180
1181
1182
1183
1184
  case $HostPlatform in
    *mingw32)
      if test x${OSTYPE} != xmsys
      then
 	    fp_prog_find="`cygpath --mixed ${fp_prog_find}`"
        AC_MSG_NOTICE([normalized find command to $fp_prog_find])
      fi ;;
    *) ;;
  esac
1185
  FindCmd="$fp_prog_find"
sof's avatar
sof committed
1186
else
1187
1188
1189
  # Found a poor WinDoze version of "find", ignore it.
  AC_MSG_WARN([$fp_prog_find looks like a non-*nix find, ignoring it])
  FP_CHECK_PROG([FindCmd], [find], [], [], [$fp_prog_find])
sof's avatar
sof committed
1190
fi
1191
1192
1193
1194
rm -f conftest.txt conftest.out
AC_SUBST([FindCmd])[]dnl
])# FP_PROG_FIND

sof's avatar
sof committed
1195

sof's avatar
sof committed
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
# FP_PROG_SORT
# ------------
# Find a Unix-like sort
AC_DEFUN([FP_PROG_SORT],
[AC_PATH_PROG([fp_prog_sort], [sort])
echo conwip > conftest.txt
$fp_prog_sort -f conftest.txt > conftest.out 2>&1
if grep 'conwip' conftest.out > /dev/null 2>&1 ; then
  # The goods
  SortCmd="$fp_prog_sort"
else
  # Summink else..pick next one.
  AC_MSG_WARN([$fp_prog_sort looks like a non-*nix sort, ignoring it])
  FP_CHECK_PROG([SortCmd], [sort], [], [], [$fp_prog_sort])
fi
rm -f conftest.txt conftest.out
AC_SUBST([SortCmd])[]dnl
])# FP_PROG_SORT

1215
1216
1217
1218
1219
1220
1221
dnl
dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
dnl values of the second argument to the result of running
dnl the commands given by the third. It does not cache its
dnl result, so it is suitable for checks which should be
dnl run every time.
dnl
1222
AC_DEFUN([FPTOOLS_NOCACHE_CHECK],
1223
1224
1225
1226
1227
[AC_MSG_CHECKING([$1])
 $3
 AC_MSG_RESULT([$][$2])
])

1228
1229
1230
dnl
dnl FPTOOLS_GHC_VERSION(version)
dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
1231
dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
1232
1233
dnl
dnl Test for version of installed ghc.  Uses $GHC.
1234
dnl [original version pinched from c2hs]
1235
dnl
1236
AC_DEFUN([FPTOOLS_GHC_VERSION],
1237
[FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
1238
["${WithGhc-ghc}" --version > conftestghc 2>&1
1239
  cat conftestghc >&AS_MESSAGE_LOG_FD
1240
1241
#Useless Use Of cat award...
  fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
1242
  rm -fr conftest*
1243
  if test "[$]fptools_version_of_ghc" = ""
1244
  then
1245
1246
1247
1248
1249
1250
1251
    fptools_version_of_ghc='unknown'
  fi
fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
#
if test "[$]fptools_version_of_ghc[_pl]" = ""
1252
then
1253
1254
  fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
  fptools_version_of_ghc[_pl]="0"
1255
else
1256
  fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
1257
fi
1258
#
1259
ifelse($#, [1], [dnl
1260
[$1]="[$]fptools_version_of_ghc[_all]"
1261
], $#, [2], [dnl
1262
1263
[$1]="[$]fptools_version_of_ghc[_major]"
[$2]="[$]fptools_version_of_ghc[_minor]"
1264
], $#, [3], [dnl
1265
1266
1267
[$1]="[$]fptools_version_of_ghc[_major]"
[$2]="[$]fptools_version_of_ghc[_minor]"
[$3]="[$]fptools_version_of_ghc[_pl]"
1268
], $#, [4], [dnl
1269
1270
1271
1272
1273
1274
[$1]="[$]fptools_version_of_ghc[_all]"
[$2]="[$]fptools_version_of_ghc[_major]"
[$3]="[$]fptools_version_of_ghc[_minor]"
[$4]="[$]fptools_version_of_ghc[_pl]"
])
])
1275
])dnl
1276
1277


1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
# FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# ---------------------------------------------------------------------------------
# A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the
# additional flexibility of specifying the PROLOGUE and BODY.
AC_DEFUN([FP_CHECK_FUNC],
[AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl
AC_CACHE_CHECK([for $1], fp_func,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],
                [AS_VAR_SET(fp_func, yes)],
                [AS_VAR_SET(fp_func, no)])])
AS_IF([test AS_VAR_GET(fp_func) = yes],
      [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1],
                [Define to 1 if you have the `]$1[' function.]) $4],
      [$5])dnl
AS_VAR_POPDEF([fp_func])dnl
])# FP_CHECK_FUNC


1296
1297
# FP_GEN_DOCBOOK_XML
# ------------------
1298
# Generates a DocBook XML V4.5 document in conftest.xml.
1299
1300
1301
1302
1303
1304
1305
#
# It took a lot of experimentation to find a document that will cause
# xsltproc to fail with an error code when the relevant
# stylesheets/DTDs are not found.  I couldn't make xsltproc fail with
# a single-file document, it seems a multi-file document is needed.
# -- SDM 2009-06-03
#
1306
AC_DEFUN([FP_GEN_DOCBOOK_XML],
1307
[rm -f conftest.xml conftest-book.xml
1308
1309
cat > conftest.xml << EOF
<?xml version="1.0" encoding="iso-8859-1"?>
1310
1311
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [[
1312
1313
<!ENTITY conftest-book SYSTEM "conftest-book.xml">
]]>
1314
<book id="test">
1315
1316
1317
1318
1319
1320
&conftest-book;
</book>
EOF
cat >conftest-book.xml << EOF
<?xml version="1.0" encoding="iso-8859-1"?>
  <title>A DocBook &ldquo;Test Document&rdquo;</title>
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
  <chapter id="id-one">
    <title>A Chapter Title</title>
    <para>This is a paragraph, referencing <xref linkend="id-two"/>.</para>
  </chapter>
  <chapter id="id-two">
    <title>Another Chapter Title</title>
    <para>This is another paragraph, referencing <xref linkend="id-one"/>.</para>
  </chapter>
EOF
]) # FP_GEN_DOCBOOK_XML


1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
# FP_PROG_DBLATEX
# ----------------
# Sets the output variable DblatexCmd to the full path of dblatex,
# which we use for building PDF and PS docs.
# DblatexCmd is empty if dblatex could not be found.
AC_DEFUN([FP_PROG_DBLATEX],
[AC_PATH_PROG([DblatexCmd], [dblatex])
if test -z "$DblatexCmd"; then
  AC_MSG_WARN([cannot find dblatex in your PATH, you will not be able to build the PDF and PS documentation])
fi
])# FP_PROG_DBLATEX


1346
1347
1348
1349
1350
1351
1352
# FP_PROG_XSLTPROC
# ----------------
# Sets the output variable XsltprocCmd to the full path of the XSLT processor
# xsltproc. XsltprocCmd is empty if xsltproc could not be found.
AC_DEFUN([FP_PROG_XSLTPROC],
[AC_PATH_PROG([XsltprocCmd], [xsltproc])
if test -z "$XsltprocCmd"; then
1353
  AC_MSG_WARN([cannot find xsltproc in your PATH, you will not be able to build the HTML documentation])
1354
1355
1356
1357
fi
])# FP_PROG_XSLTPROC


1358
# FP_DOCBOOK_XSL
1359
# ----------------------------
1360
# Check that we can process a DocBook XML document to HTML using xsltproc.
1361
AC_DEFUN([FP_DOCBOOK_XSL],
1362
1363
[AC_REQUIRE([FP_PROG_XSLTPROC])dnl
if test -n "$XsltprocCmd"; then
1364
  AC_CACHE_CHECK([for DocBook XSL stylesheet], fp_cv_dir_docbook_xsl,
1365
1366
  [FP_GEN_DOCBOOK_XML
  fp_cv_dir_docbook_xsl=no
1367
1368
1369
  if $XsltprocCmd --nonet http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl conftest.xml > /dev/null 2>&1; then
     fp_cv_dir_docbook_xsl=yes
  fi
1370
1371
1372
1373
  rm -rf conftest*])
fi
if test x"$fp_cv_dir_docbook_xsl" = xno; then
  AC_MSG_WARN([cannot find DocBook XSL stylesheets, you will not be able to build the documentation])
1374
  HAVE_DOCBOOK_XSL=NO
1375
else
1376
  HAVE_DOCBOOK_XSL=YES
1377
fi
1378
1379
AC_SUBST([HAVE_DOCBOOK_XSL])
])# FP_DOCBOOK_XSL
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400


# FP_PROG_XMLLINT
# ----------------
# Sets the output variable XmllintCmd to the full path of the XSLT processor
# xmllint. XmllintCmd is empty if xmllint could not be found.
AC_DEFUN([FP_PROG_XMLLINT],
[AC_PATH_PROG([XmllintCmd], [xmllint])
if test -z "$XmllintCmd"; then
  AC_MSG_WARN([cannot find xmllint in your PATH, you will not be able to validate your documentation])
fi
])# FP_PROG_XMLLINT


# FP_CHECK_DOCBOOK_DTD
# --------------------
AC_DEFUN([FP_CHECK_DOCBOOK_DTD],
[AC_REQUIRE([FP_PROG_XMLLINT])dnl
if test -n "$XmllintCmd"; then
  AC_MSG_CHECKING([for DocBook DTD])
  FP_GEN_DOCBOOK_XML
1401
  if $XmllintCmd --nonet --valid --noout conftest.xml ; then
1402
1403
1404
    AC_MSG_RESULT([ok])
  else
    AC_MSG_RESULT([failed])
1405
    AC_MSG_WARN([cannot find a DTD for DocBook XML V4.5, you will not be able to validate your documentation])
1406
1407
1408
1409
1410
1411
1412
    AC_MSG_WARN([check your XML_CATALOG_FILES environment variable and/or /etc/xml/catalog])
  fi
  rm -rf conftest*
fi
])# FP_CHECK_DOCBOOK_DTD


1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
# FP_GEN_FO
# ------------------
# Generates a formatting objects document in conftest.fo.
AC_DEFUN([FP_GEN_FO],
[rm -f conftest.fo
cat > conftest.fo << EOF
<?xml version="1.0"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
  <fo:layout-master-set>
    <fo:simple-page-master master-name="blank">
      <fo:region-body/>
    </fo:simple-page-master>
  </fo:layout-master-set>
  <fo:page-sequence master-reference="blank">
    <fo:flow flow-name="xsl-region-body">
      <fo:block>
        Test!
      </fo:block>
    </fo:flow>
  </fo:page-sequence>
</fo:root>
EOF
]) # FP_GEN_FO


# FP_PROG_FOP
# -----------
# Set the output variable 'FopCmd' to the first working 'fop' in the current
# 'PATH'. Note that /usr/bin/fop is broken in SuSE 9.1 (unpatched), so try
# /usr/share/fop/fop.sh in that case (or no 'fop'), too.
AC_DEFUN([FP_PROG_FOP],
claus.reinke@talk21.com's avatar
claus.reinke@talk21.com committed
1444
[AC_PATH_PROGS([FopCmd1], [fop fop.sh])
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
if test -n "$FopCmd1"; then
  AC_CACHE_CHECK([for $FopCmd1 usability], [fp_cv_fop_usability],
    [FP_GEN_FO
    if "$FopCmd1" -fo conftest.fo -ps conftest.ps > /dev/null 2>&1; then
      fp_cv_fop_usability=yes
    else
      fp_cv_fop_usability=no
    fi
    rm -rf conftest*])
  if test x"$fp_cv_fop_usability" = xyes; then
     FopCmd=$FopCmd1
  fi
fi
if test -z "$FopCmd"; then
  AC_PATH_PROGS([FopCmd2], [fop.sh], , [/usr/share/fop])
  FopCmd=$FopCmd2
fi
AC_SUBST([FopCmd])
])# FP_PROG_FOP


1466
1467
1468
# FP_PROG_GHC_PKG
# ----------------
# Try to find a ghc-pkg matching the ghc mentioned in the environment variable
Ian Lynagh's avatar
Ian Lynagh committed
1469
# WithGhc. Sets the output variable GhcPkgCmd.
1470
1471
AC_DEFUN([FP_PROG_GHC_PKG],
[AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg,
Ian Lynagh's avatar
Ian Lynagh committed
1472
1473
1474
1475
1476
1477
1478
1479
[
# If we are told to use ghc-stage2, then we're using an in-tree
# compiler. In this case, we just want ghc-pkg, not ghc-pkg-stage2,
# so we sed off -stage[0-9]$. However, if we are told to use
# ghc-6.12.1 then we want to use ghc-pkg-6.12.1, so we keep any
# other suffix.
fp_ghc_pkg_guess=`echo $WithGhc | sed -e 's/-stage@<:@0-9@:>@$//' -e 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'`
if "$fp_ghc_pkg_guess" list > /dev/null 2>&1; then
1480
  fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
1481
else
Ian Lynagh's avatar
Ian Lynagh committed
1482
  AC_MSG_ERROR([Cannot find matching ghc-pkg])
1483
fi])
Ian Lynagh's avatar
Ian Lynagh committed
1484
1485
1486
GhcPkgCmd=$fp_cv_matching_ghc_pkg
AC_SUBST([GhcPkgCmd])
])# FP_PROG_GHC_PKG
1487

1488

1489
1490
1491
1492
1493
1494
1495
1496
1497
# FP_GCC_EXTRA_FLAGS
# ------------------
# Determine which extra flags we need to pass gcc when we invoke it
# to compile .hc code.
#
# -fwrapv is needed for gcc to emit well-behaved code in the presence of
# integer wrap around. (Trac #952)
#
AC_DEFUN([FP_GCC_EXTRA_FLAGS],
1498
[AC_REQUIRE([FP_GCC_VERSION])
1499
1500
AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_extra_opts],
[fp_cv_gcc_extra_opts=
1501
 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
1502
1503
1504
1505
1506
  [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fwrapv"],
  [])
])
AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts)
])
1507

1508

1509
1510
1511
# FP_SETUP_PROJECT_VERSION
# ---------------------
AC_DEFUN([FP_SETUP_PROJECT_VERSION],
1512
1513
1514
[
if test "$RELEASE" = "NO"; then
    AC_MSG_CHECKING([for GHC version date])
1515
1516
    if test -f VERSION_DATE; then
        PACKAGE_VERSION=${PACKAGE_VERSION}.`cat VERSION_DATE`
Ian Lynagh's avatar
Ian Lynagh committed
1517
        AC_MSG_RESULT(given $PACKAGE_VERSION)
1518
1519
    elif test -d .git; then
        changequote(, )dnl
1520
        ver_date=`git log -n 1 --date=short --pretty=format:%ci | cut -d ' ' -f 1 | tr -d -`
1521
1522
1523
1524
1525
1526
        if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else
        changequote([, ])dnl
                AC_MSG_ERROR([failed to detect version date: check that git is in your path])
        fi
        PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
        AC_MSG_RESULT(inferred $PACKAGE_VERSION)
1527
    elif test -d _darcs; then
1528
        # TODO: Remove this branch after conversion to Git
1529
        changequote(, )dnl
1530
        ver_date=`darcs changes --quiet --no-summary --xml | head -500 | grep 'date=' | sed "s/^.*date='\([0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]\).*$/\1/g" | ${SortCmd} -n | tail -1`
1531
        if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else
1532
        changequote([, ])dnl
1533
1534
                AC_MSG_ERROR([failed to detect version date: check that darcs is in your path])
        fi
1535
        PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
Ian Lynagh's avatar
Ian Lynagh committed
1536
        AC_MSG_RESULT(inferred $PACKAGE_VERSION)
1537
    elif test -f VERSION; then
1538
        PACKAGE_VERSION=`cat VERSION`
Ian Lynagh's avatar
Ian Lynagh committed
1539
        AC_MSG_RESULT(given $PACKAGE_VERSION)
1540
    else
1541
        AC_MSG_WARN([cannot determine snapshot version: no .git or _darcs directory and no VERSION file])
1542
1543
1544
1545
    fi
fi

# Some renamings
sven.panne@aedion.de's avatar
sven.panne@aedion.de committed
1546
AC_SUBST([ProjectName], [$PACKAGE_NAME])
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
AC_SUBST([ProjectVersion], [$PACKAGE_VERSION])

# Split PACKAGE_VERSION into (possibly empty) parts
VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
VERSION_TMP=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
VERSION_MINOR=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
ProjectPatchLevel=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`

# Calculate project version as an integer, using 2 digits for minor version
case $VERSION_MINOR in
  ?) ProjectVersionInt=${VERSION_MAJOR}0${VERSION_MINOR} ;;
  ??) ProjectVersionInt=${VERSION_MAJOR}${VERSION_MINOR} ;;
  *) AC_MSG_ERROR([bad minor version in $PACKAGE_VERSION]) ;;
esac
AC_SUBST([ProjectVersionInt])

# The project patchlevel is zero unless stated otherwise
test -z "$ProjectPatchLevel" && ProjectPatchLevel=0

# Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508
ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'`

AC_SUBST([ProjectPatchLevel])
1570
])# FP_SETUP_PROJECT_VERSION
1571

1572
1573
1574
1575
1576

# Check for a working timer_create().  We need a pretty detailed check
# here, because there exist partially-working implementations of
# timer_create() in certain versions of Linux (see bug #1933).
#
1577
1578
1579
1580
AC_DEFUN([FP_CHECK_TIMER_CREATE],
  [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)], 
    [fptools_cv_timer_create_works],
    [AC_TRY_RUN([
1581
1582
1583
1584
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
1585
1586
1587
1588
1589
1590
1591
1592
1593
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
1594
1595
1596
1597
1598
1599
1600

static volatile int tock = 0;
static void handler(int i)
{
   tock = 1;
}

1601
1602
1603
1604
1605
1606
1607
static void timeout(int i)
{
  // timer_settime() has been known to hang, so just in case
  // we install a 1-second timeout (see #2257)
  exit(99);
}

1608
1609
int main(int argc, char *argv[])
{
1610

1611
1612
    struct sigevent ev;
    timer_t timer;
1613
1614
1615
1616
    struct itimerspec it;
    struct sigaction action;
    int m,n,count = 0;

1617
1618
    ev.sigev_notify = SIGEV_SIGNAL;
    ev.sigev_signo  = SIGVTALRM;
1619
1620
1621
1622
1623
1624
1625
1626
1627

    action.sa_handler = handler;
    action.sa_flags = 0;
    sigemptyset(&action.sa_mask);
    if (sigaction(SIGVTALRM, &action, NULL) == -1) {
        fprintf(stderr,"SIGVTALRM problem\n");
        exit(3);
    }

1628
1629
1630
1631
1632
1633
1634
1635
1636
    action.sa_handler = timeout;
    action.sa_flags = 0;
    sigemptyset(&action.sa_mask);
    if (sigaction(SIGALRM, &action, NULL) == -1) {
      fprintf(stderr,"SIGALRM problem\n");
      exit(3);
    }
    alarm(1);

Simon Marlow's avatar
Simon Marlow committed
1637
    if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
1638
        fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n");
1639
1640
       exit(1);
    }
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660

    it.it_value.tv_sec = 0;
    it.it_value.tv_nsec = 1;
    it.it_interval = it.it_value;
    if (timer_settim