aclocal.m4 61.9 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
AC_DEFUN([GHC_SELECT_FILE_EXTENSIONS],
[
    $2=''
    $3='.so'
    case $1 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
        $2='.exe'
        $3='.dll'
        ;;
    i386-apple-darwin|powerpc-apple-darwin)
        $3='.dylib'
        ;;
    x86_64-apple-darwin)
        $3='.dylib'
        ;;
28
    arm-apple-darwin10|i386-apple-darwin11)
29 30 31 32 33 34
        $2='.a'
        $3='.dylib'
        ;;
    esac
])

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
# 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([$build_vendor], [BuildVendor])
67
        GHC_CONVERT_OS([$build_os], [$BuildArch], [BuildOS])
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
    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([$host_vendor], [HostVendor])
87
        GHC_CONVERT_OS([$host_os], [$HostArch], [HostOS])
88 89 90 91
    fi

    if test "$target_alias" = ""
    then
Simon Marlow's avatar
Simon Marlow committed
92
        if test "$host_alias" != ""
93
        then
Simon Marlow's avatar
Simon Marlow committed
94 95
            GHC_CONVERT_CPU([$host_cpu], [TargetArch])
            GHC_CONVERT_VENDOR([$host_vendor], [TargetVendor])
96
            GHC_CONVERT_OS([$host_os], [$TargetArch],[TargetOS])
97
        else
Simon Marlow's avatar
Simon Marlow committed
98 99 100 101 102 103 104 105
            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
106

Simon Marlow's avatar
Simon Marlow committed
107 108 109
            TargetArch=`echo "$target" | sed 's/-.*//'`
            TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
            TargetOS=`echo "$target" | sed 's/.*-//'`
110 111 112 113
        fi
    else
        GHC_CONVERT_CPU([$target_cpu], [TargetArch])
        GHC_CONVERT_VENDOR([$target_vendor], [TargetVendor])
114
        GHC_CONVERT_OS([$target_os], [$TargetArch], [TargetOS])
115
    fi
116

117 118
    GHC_SELECT_FILE_EXTENSIONS([$host], [exeext_host], [soext_host])
    GHC_SELECT_FILE_EXTENSIONS([$target], [exeext_target], [soext_target])
119 120 121 122 123 124
    windows=NO
    case $host in
    *-unknown-mingw32)
        windows=YES
        ;;
    esac
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
    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)

167 168 169 170
    AC_SUBST(exeext_host)
    AC_SUBST(exeext_target)
    AC_SUBST(soext_host)
    AC_SUBST(soext_target)
171 172 173 174 175 176 177 178
])


# FPTOOLS_SET_HASKELL_PLATFORM_VARS
# ----------------------------------
# Set the Haskell platform variables
AC_DEFUN([FPTOOLS_SET_HASKELL_PLATFORM_VARS],
[
179 180
    checkArch() {
        case [$]1 in
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197
        i386)
            test -z "[$]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 "[$]2=ArchSPARC"
            ;;
        arm)
            GET_ARM_ISA()
198
            test -z "[$]2" || eval "[$]2=\"ArchARM {armISA = \$ARM_ISA, armISAExt = \$ARM_ISA_EXT, armABI = \$ARM_ABI}\""
199
            ;;
200 201 202 203 204 205 206 207 208 209
        alpha)
            test -z "[$]2" || eval "[$]2=ArchAlpha"
            ;;
        mips|mipseb)
            test -z "[$]2" || eval "[$]2=ArchMipseb"
            ;;
        mipsel)
            test -z "[$]2" || eval "[$]2=ArchMipsel"
            ;;
        hppa|hppa1_1|ia64|m68k|rs6000|s390|s390x|sparc64|vax)
210
            test -z "[$]2" || eval "[$]2=ArchUnknown"
211 212 213 214 215 216 217 218 219 220
            ;;
        *)
            echo "Unknown arch [$]1"
            exit 1
            ;;
        esac
    }

    checkVendor() {
        case [$]1 in
221
        dec|unknown|hp|apple|next|sun|sgi|ibm|montavista|portbld)
222 223 224 225 226 227 228 229 230 231
            ;;
        *)
            echo "Unknown vendor [$]1"
            exit 1
            ;;
        esac
    }

    checkOS() {
        case [$]1 in
232 233 234
        linux)
            test -z "[$]2" || eval "[$]2=OSLinux"
            ;;
235 236 237
        ios)
            test -z "[$]2" || eval "[$]2=OSiOS"
            ;;
238 239 240 241 242 243 244 245 246 247 248 249
        darwin)
            test -z "[$]2" || eval "[$]2=OSDarwin"
            ;;
        solaris2)
            test -z "[$]2" || eval "[$]2=OSSolaris2"
            ;;
        mingw32)
            test -z "[$]2" || eval "[$]2=OSMinGW32"
            ;;
        freebsd)
            test -z "[$]2" || eval "[$]2=OSFreeBSD"
            ;;
250 251 252
        dragonfly)
            test -z "[$]2" || eval "[$]2=OSDragonFly"
            ;;
253 254 255
        kfreebsdgnu)
            test -z "[$]2" || eval "[$]2=OSKFreeBSD"
            ;;
256 257 258
        openbsd)
            test -z "[$]2" || eval "[$]2=OSOpenBSD"
            ;;
Ian Lynagh's avatar
Ian Lynagh committed
259 260 261
        netbsd)
            test -z "[$]2" || eval "[$]2=OSNetBSD"
            ;;
pcapriotti's avatar
pcapriotti committed
262 263 264
        haiku)
            test -z "[$]2" || eval "[$]2=OSHaiku"
            ;;
ian@well-typed.com's avatar
ian@well-typed.com committed
265 266 267
        osf3)
            test -z "[$]2" || eval "[$]2=OSOsf3"
            ;;
268 269 270
        nto-qnx)
            test -z "[$]2" || eval "[$]2=OSQNXNTO"
            ;;
ian@well-typed.com's avatar
ian@well-typed.com committed
271
        dragonfly|osf1|hpux|linuxaout|freebsd2|cygwin32|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
272
            test -z "[$]2" || eval "[$]2=OSUnknown"
273
            ;;
274 275 276
        linux-android)
            test -z "[$]2" || eval "[$]2=OSAndroid"
            ;;
277 278 279 280 281
        *)
            echo "Unknown OS '[$]1'"
            exit 1
            ;;
        esac
282
    }
283

284 285 286 287 288 289 290 291 292 293 294 295 296 297
    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)])

298 299 300 301 302 303 304 305 306 307
    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])

308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
    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"

325
    checkArch "$BuildArch" "HaskellBuildArch"
326 327 328
    checkVendor "$BuildVendor"
    checkOS "$BuildOS" ""

329
    checkArch "$HostArch" "HaskellHostArch"
330 331 332 333 334 335 336 337 338
    checkVendor "$HostVendor"
    checkOS "$HostOS" ""

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

    AC_SUBST(HaskellTargetArch)
    AC_SUBST(HaskellTargetOs)
339
    AC_SUBST(HaskellHaveSubsectionsViaSymbols)
340
    AC_SUBST(HaskellHaveIdentDirective)
341
    AC_SUBST(HaskellHaveGnuNonexecStack)
342 343 344 345 346
])


# GET_ARM_ISA
# ----------------------------------
Gabor Greif's avatar
Gabor Greif committed
347
# Get info about the ISA on the ARM arch
348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390
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])
                 ARM_ISA=ARMv6
391 392 393 394 395 396 397 398 399 400 401
                 AC_COMPILE_IFELSE([
                        AC_LANG_PROGRAM(
                                [],
                                [#if defined(__VFP_FP__)
                                     return 0;
                                #else
                                     no vfp
                                #endif]
                        )],
                        [changequote(, )dnl
                         ARM_ISA_EXT="[VFPv2]"
402 403
                         changequote([, ])dnl
                        ],
404 405
                        [changequote(, )dnl
                         ARM_ISA_EXT="[]"
406 407
                         changequote([, ])dnl
                        ]
408
                )],
409 410
                [changequote(, )dnl
                 ARM_ISA=ARMv7
411
                 ARM_ISA_EXT="[VFPv3,NEON]"
412 413 414
                 changequote([, ])dnl
                ])
        ])
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

        AC_COMPILE_IFELSE(
               [AC_LANG_PROGRAM(
                       [],
                       [#if defined(__SOFTFP__)
                            return 0;
                       #else
                            not softfp
                       #endif]
               )],
               [changequote(, )dnl
                ARM_ABI="SOFT"
                changequote([, ])dnl
               ],
               [AC_COMPILE_IFELSE(
                    [AC_LANG_PROGRAM(
                       [],
                       [#if defined(__ARM_PCS_VFP)
                            return 0;
                       #else
                            no hard float ABI
                       #endif]
                    )],
                    [ARM_ABI="HARD"],
                    [ARM_ABI="SOFTFP"]
               )]
        )
442 443 444 445 446 447 448 449 450 451
])


# FP_SETTINGS
# ----------------------------------
# Set the variables used in the settings file
AC_DEFUN([FP_SETTINGS],
[
    if test "$windows" = YES
    then
452 453
        mingw_bin_prefix=mingw/bin/
        SettingsCCompilerCommand="\$topdir/../${mingw_bin_prefix}gcc.exe"
Simon Marlow's avatar
Simon Marlow committed
454
        SettingsLdCommand="\$topdir/../${mingw_bin_prefix}ld.exe"
455
        SettingsArCommand="\$topdir/../${mingw_bin_prefix}ar.exe"
456
        SettingsPerlCommand='$topdir/../perl/perl.exe'
457 458
        SettingsDllWrapCommand="\$topdir/../${mingw_bin_prefix}dllwrap.exe"
        SettingsWindresCommand="\$topdir/../${mingw_bin_prefix}windres.exe"
Ian Lynagh's avatar
Ian Lynagh committed
459
        SettingsTouchCommand='$topdir/touchy.exe'
460 461
    else
        SettingsCCompilerCommand="$WhatGccIsCalled"
Simon Marlow's avatar
Simon Marlow committed
462
        SettingsLdCommand="$LdCmd"
463
        SettingsArCommand="$ArCmd"
464 465 466
        SettingsPerlCommand="$PerlCmd"
        SettingsDllWrapCommand="/bin/false"
        SettingsWindresCommand="/bin/false"
467
        SettingsLibtoolCommand="libtool"
468
        SettingsTouchCommand='touch'
469 470 471 472 473 474 475 476 477 478 479 480
        if test -z "$LlcCmd"
        then
          SettingsLlcCommand="llc"
        else
          SettingsLlcCommand="$LlcCmd"
        fi
        if test -z "$OptCmd"
        then
          SettingsOptCommand="opt"
        else
          SettingsOptCommand="$OptCmd"
        fi
481
    fi
482 483
    SettingsCCompilerFlags="$CONF_CC_OPTS_STAGE2"
    SettingsCCompilerLinkFlags="$CONF_GCC_LINKER_OPTS_STAGE2"
484
    SettingsLdFlags="$CONF_LD_LINKER_OPTS_STAGE2"
485 486
    AC_SUBST(SettingsCCompilerCommand)
    AC_SUBST(SettingsCCompilerFlags)
487
    AC_SUBST(SettingsCCompilerLinkFlags)
Simon Marlow's avatar
Simon Marlow committed
488
    AC_SUBST(SettingsLdCommand)
489
    AC_SUBST(SettingsLdFlags)
490
    AC_SUBST(SettingsArCommand)
491 492 493
    AC_SUBST(SettingsPerlCommand)
    AC_SUBST(SettingsDllWrapCommand)
    AC_SUBST(SettingsWindresCommand)
494
    AC_SUBST(SettingsLibtoolCommand)
495
    AC_SUBST(SettingsTouchCommand)
496 497
    AC_SUBST(SettingsLlcCommand)
    AC_SUBST(SettingsOptCommand)
498 499 500
])


501 502
# FPTOOLS_SET_C_LD_FLAGS
# ----------------------------------
503 504
# Set the C, LD and CPP flags for a given platform
# $1 is the platform
505 506 507 508
# $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
509 510
AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS],
[
511
    AC_MSG_CHECKING([Setting up $2, $3, $4 and $5])
512
    case $$1 in
513
    i386-*)
514 515 516 517 518
        # Workaround for #7799
        $2="$$2 -U__i686"
        ;;
    esac

519
    case $$1 in
520
    i386-apple-darwin)
521 522
        $2="$$2 -m32"
        $3="$$3 -m32"
523
        $4="$$4 -arch i386"
524
        $5="$$5 -m32"
525 526 527
        ;;
    x86_64-apple-darwin)
        $2="$$2 -m64"
528
        $3="$$3 -m64"
529 530
        $4="$$4 -arch x86_64"
        $5="$$5 -m64"
531
        ;;
532 533 534 535 536 537 538 539 540 541 542 543 544 545 546
    alpha-*)
        # For now, to suppress the gcc warning "call-clobbered
        # register used for global register variable", we simply
        # disable all warnings altogether using the -w flag. Oh well.
        $2="$$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"
        ;;
547
    esac
548 549 550 551 552 553 554 555

    # 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
556

Ian Lynagh's avatar
Ian Lynagh committed
557
    rm -f conftest.c conftest.o
Ian Lynagh's avatar
Ian Lynagh committed
558
    AC_MSG_RESULT([done])
559 560 561
])


562 563 564 565 566 567 568 569 570 571 572 573 574 575 576
AC_DEFUN([FP_PATH_PROG],[
    AC_PATH_PROG($1,$2,$3,$4,$5,$6)
    # If we have a cygwin path for something, and we try to run it
    # from cabal or python, then it'll fail. So we convert to a
    # native path.
    if test "$HostOS"     = "mingw32" && \
       test "${OSTYPE}"  != "msys"    && \
       test "${$1}" != ""
    then
        # Canonicalise to <drive>:/path/to/gcc
        $1=`cygpath -m "${$1}"`
    fi
])


577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594
# 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
])


595 596
# FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
# ----------------------------------
Gabor Greif's avatar
Gabor Greif committed
597
# Little endian ARM on Linux with some ABIs has big endian word order
598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621
# 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
])


622 623
# FP_ARG_WITH_PATH_GNU_PROG
# --------------------
624 625 626 627 628
# Find the specified command on the path or allow a user to set it manually
# with a --with-<command> option. An error will be thrown if the command isn't
# found.
#
# This is ignored on the mingw32 platform.
629
#
630
# $1 = the variable to set
631 632
# $2 = the with option name
# $3 = the command to look for
633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649
#
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 "$HostOS" != "mingw32"
    then
650 651 652 653 654
        if test "$target_alias" = "" ; then
            AC_PATH_PROG([$1], [$3])
        else
            AC_PATH_PROG([$1], [$target_alias-$3])
        fi
655 656
        if test -z "$$1"
        then
Simon Marlow's avatar
Simon Marlow committed
657
            AC_MSG_ERROR([cannot find $3 in your PATH])
658 659 660 661 662 663 664
        fi
    fi
]
)
]) # FP_ARG_WITH_PATH_GNU_PROG


665 666
# FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL
# --------------------
667 668 669 670
# Same as FP_ARG_WITH_PATH_GNU_PROG but no error will be thrown if the command
# isn't found.
#
# This is ignored on the mingw32 platform.
671 672
#
# $1 = the variable to set
673 674
# $2 = the with option name
# $3 = the command to look for
675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691
#
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
692
        AC_PATH_PROG([$1], [$3])
693 694 695 696 697
    fi
]
)
]) # FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL

698 699 700
# FP_PROG_CONTEXT_DIFF
# --------------------
# Figure out how to do context diffs. Sets the output variable ContextDiffCmd.
701 702
#
# Note: NeXTStep thinks diff'ing a file against itself is "trouble".
703 704 705 706 707
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
708
for fp_var in '-U 1' '-u1' '-C 1' '-c1'
709 710 711 712 713 714 715 716 717 718 719 720 721
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


722
# FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
723
# --------------------------------------------------------
724 725 726
# 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.
727 728 729 730
#
# 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.
731 732 733 734 735 736 737 738 739 740
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],
741
[AS_LITERAL_IF(m4_translit([[$1]], [*], [p]), [],
742
               [AC_FATAL([$0: requires literal arguments])])[]dnl
743 744 745
AC_CHECK_TYPE([$1], [], [], [$3])[]dnl
m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl
AC_CACHE_CHECK([alignment of $1], [fp_Cache],
746
[if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then
747
  FP_COMPUTE_INT([offsetof(struct { char c; $1 ty; },ty)],
748
                 [fp_Cache],
749
                 [AC_INCLUDES_DEFAULT([$3])],
750 751
                 [AC_MSG_ERROR([cannot compute alignment ($1)
See `config.log' for more details.], [77])])
752
else
753 754 755 756
  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
757 758 759
])# FP_CHECK_ALIGNMENT


760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778
# 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"
779
case $HostPlatform in
dons's avatar
dons committed
780
*openbsd*) # x86 openbsd is ELF from 3.4 >, meaning no leading uscore
781 782 783 784 785 786
  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;;
787 788
i386-unknown-mingw32) fptools_cv_leading_underscore=yes;;
x86_64-unknown-mingw32) fptools_cv_leading_underscore=no;;
789 790 791

    # HACK: Apple doesn't seem to provide nlist in the 64-bit-libraries
x86_64-apple-darwin*) fptools_cv_leading_underscore=yes;;
792
*-apple-ios) fptools_cv_leading_underscore=yes;;
793

794
*) AC_RUN_IFELSE([AC_LANG_SOURCE([[#ifdef HAVE_NLIST_H
sof's avatar
sof committed
795
#include <nlist.h>
796 797
struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}};
struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}};
sof's avatar
sof committed
798 799
#endif

800 801 802
int main(argc, argv)
int argc;
char **argv;
sof's avatar
sof committed
803 804
{
#ifdef HAVE_NLIST_H
805 806 807
    if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0)
        exit(1);
    if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0)
808
        exit(0);
sof's avatar
sof committed
809 810
#endif
    exit(1);
811
}]])],[fptools_cv_leading_underscore=yes],[fptools_cv_leading_underscore=no],[fptools_cv_leading_underscore=no])
812
;;
813 814 815 816 817
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
818

819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846

# 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
847 848


sof's avatar
sof committed
849
dnl
850
dnl Check for Happy and version.  If we're building GHC, then we need
851
dnl at least Happy version 1.14.  If there's no installed Happy, we look
852 853
dnl for a happy source tree and point the build system at that instead.
dnl
854
AC_DEFUN([FPTOOLS_HAPPY],
855
[FP_PATH_PROG(HappyCmd,happy,)
856

sof's avatar
sof committed
857
AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
sof's avatar
sof committed
858
changequote(, )dnl
859
[if test x"$HappyCmd" != x; then
860 861
   fptools_cv_happy_version=`"$HappyCmd" -v |
			  grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'` ;
sof's avatar
sof committed
862
else
sof's avatar
sof committed
863
   fptools_cv_happy_version="";
sof's avatar
sof committed
864
fi;
865
changequote([, ])dnl
866
])
867
if test ! -f compiler/parser/Parser.hs || test ! -f compiler/cmm/CmmParse.hs || test ! -f compiler/parser/ParserCore.hs
868
then
869 870
    FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.19],
      [AC_MSG_ERROR([Happy version 1.19 or later is required to compile GHC.])])[]
871
fi
872
HappyVersion=$fptools_cv_happy_version;
sof's avatar
sof committed
873 874 875
AC_SUBST(HappyVersion)
])

876 877
dnl
dnl Check for Alex and version.  If we're building GHC, then we need
878
dnl at least Alex version 2.1.1.
879
dnl
880
AC_DEFUN([FPTOOLS_ALEX],
881
[
882
FP_PATH_PROG(AlexCmd,alex,)
883

884 885
AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version,
changequote(, )dnl
886
[if test x"$AlexCmd" != x; then
887 888
   fptools_cv_alex_version=`"$AlexCmd" -v |
			  grep 'Alex [Vv]ersion' | sed -e 's/Alex [Vv]ersion \([0-9\.]*\).*/\1/g'` ;
889 890 891 892 893
else
   fptools_cv_alex_version="";
fi;
changequote([, ])dnl
])
894 895
FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-ge],[3.0],
  [Alex3=YES],[Alex3=NO])
896 897
if test ! -f compiler/cmm/CmmLex.hs || test ! -f compiler/parser/Lexer.hs
then
898 899
    FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[3.1.0],
      [AC_MSG_ERROR([Alex version 3.1.0 or later is required to compile GHC.])])[]
900
fi
901 902 903 904
if test ! -f utils/haddock/src/Haddock/Lex.hs
then
    FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[3.0],
      [AC_MSG_ERROR([Alex version 3.0 or later is required to compile Haddock.])])[]
905
fi
906 907
AlexVersion=$fptools_cv_alex_version;
AC_SUBST(AlexVersion)
908
AC_SUBST(Alex3)
909 910
])

sof's avatar
sof committed
911

912 913 914 915 916
# 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],
917
[
918
AC_CACHE_CHECK([whether ld understands $1], [fp_cv_$2],
919
[echo 'int foo() { return 0; }' > conftest.c
920
${CC-cc} -c conftest.c
921 922
if ${LdCmd} -r $1 -o conftest2.o conftest.o > /dev/null 2>&1; then
   fp_cv_$2=$1
923
else
924
   fp_cv_$2=
925
fi
926
rm -rf conftest*])
927 928 929 930
$2=$fp_cv_$2
])# FP_PROG_LD_FLAG


931 932 933 934 935 936 937 938
# 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],
939
[echo 'int foo() { return 0; }' > conftest.c
940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955
${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


956 957 958 959 960
# 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],
961
[
962 963 964 965 966 967 968 969
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
970

sof's avatar
sof committed
971

972 973 974 975 976 977 978 979
# 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],
980
[echo 'int foo() { return 0; }' > conftest.c
981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
${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


997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028
# FP_PROG_LD_FILELIST
# -------------------

# Sets the output variable LdHasFilelist to YES if ld supports
# -filelist, or NO otherwise.
AC_DEFUN([FP_PROG_LD_FILELIST],
[
AC_CACHE_CHECK([whether ld understands -filelist], [fp_cv_ld_has_filelist],
[
    echo 'int foo() { return 0; }' > conftest1.c
    echo 'int bar() { return 0; }' > conftest2.c
    ${CC-cc} -c conftest1.c
    ${CC-cc} -c conftest2.c
    echo conftest1.o  > conftest.o-files
    echo conftest2.o >> conftest.o-files
    if ${LdCmd} -r -filelist conftest.o-files -o conftest.o > /dev/null 2>&1
    then
        fp_cv_ld_has_filelist=yes
    else
        fp_cv_ld_has_filelist=no
    fi
    rm -rf conftest*
])
if test "$fp_cv_ld_has_filelist" = yes; then
    LdHasFilelist=YES
else
    LdHasFilelist=NO
fi
AC_SUBST([LdHasFilelist])
])# FP_PROG_LD_FILELIST


1029 1030
# FP_PROG_AR
# ----------
Ian Lynagh's avatar
Ian Lynagh committed
1031
# Sets fp_prog_ar to a (non-Cygwin) path to ar. Exits if no ar can be found
1032
AC_DEFUN([FP_PROG_AR],
1033 1034
[FP_PATH_PROG([fp_prog_ar], [ar])
if test -z "$fp_prog_ar"; then
1035
  AC_MSG_ERROR([cannot find ar in your PATH, no idea how to make a library])
sof's avatar
sof committed
1036
fi
1037 1038 1039 1040 1041 1042 1043 1044
])# 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])
Ian Lynagh's avatar
Ian Lynagh committed
1045 1046
AC_CACHE_CHECK([whether $fp_prog_ar is GNU ar], [fp_cv_prog_ar_is_gnu],
[if "$fp_prog_ar" --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
1047 1048 1049 1050 1051
  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
1052
AC_SUBST([ArIsGNUAr], [`echo $fp_prog_ar_is_gnu | tr 'a-z' 'A-Z'`])
1053 1054 1055
])# FP_PROG_AR_IS_GNU


1056 1057 1058 1059 1060 1061 1062
# 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])
Ian Lynagh's avatar
Ian Lynagh committed
1063
AC_CACHE_CHECK([whether $fp_prog_ar supports @file], [fp_cv_prog_ar_supports_atfile],
1064 1065 1066 1067 1068
[
rm -f conftest*
touch conftest.file
echo conftest.file  > conftest.atfile
echo conftest.file >> conftest.atfile
Ian Lynagh's avatar
Ian Lynagh committed
1069 1070
"$fp_prog_ar" $fp_prog_ar_args conftest.a @conftest.atfile > /dev/null 2>&1
fp_prog_ar_supports_atfile_tmp=`"$fp_prog_ar" t conftest.a 2> /dev/null | grep -c conftest.file`
1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081
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

1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
# 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 $fp_prog_ar_is_gnu = yes; then
  fp_cv_prog_ar_args="q"
else
  touch conftest.dummy
  for fp_var in clqsZ clqs cqs clq cq ; do
     rm -f conftest.a
Ian Lynagh's avatar
Ian Lynagh committed
1099
     if "$fp_prog_ar" $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null; then
1100 1101 1102 1103 1104 1105
        fp_cv_prog_ar_args=$fp_var
        break
     fi
  done
  rm -f conftest*
  if test -z "$fp_cv_prog_ar_args"; then
Ian Lynagh's avatar
Ian Lynagh committed
1106
    AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar])
1107 1108 1109
  fi
fi])
fp_prog_ar_args=$fp_cv_prog_ar_args
1110 1111
AC_SUBST([ArCmd], ["$fp_prog_ar"])
AC_SUBST([ArArgs], ["$fp_prog_ar_args"])
1112 1113 1114 1115 1116 1117

])# FP_PROG_AR_ARGS


# FP_PROG_AR_NEEDS_RANLIB
# -----------------------
1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153
# Sets the output variable RANLIB_CMD to "ranlib" if it is needed and
# found, to "true" otherwise. Sets REAL_RANLIB_CMD to the ranlib program,
# even if we don't need ranlib (libffi might still need it).
AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],[
    AC_REQUIRE([FP_PROG_AR_IS_GNU])
    AC_REQUIRE([FP_PROG_AR_ARGS])
    AC_REQUIRE([AC_PROG_CC])

    AC_PROG_RANLIB

    if test $fp_prog_ar_is_gnu = yes
    then
        fp_cv_prog_ar_needs_ranlib=no
    elif test "$TargetOS_CPP" = "darwin"
    then
        # 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
    else
        case $fp_prog_ar_args in
        *s*)
            fp_cv_prog_ar_needs_ranlib=no;;
        *)
            fp_cv_prog_ar_needs_ranlib=yes;;
        esac
    fi

    REAL_RANLIB_CMD="$RANLIB"
    if test $fp_cv_prog_ar_needs_ranlib = yes
    then
        RANLIB_CMD="$RANLIB"
    else
        RANLIB_CMD="true"
    fi
    AC_SUBST([REAL_RANLIB_CMD])
    AC_SUBST([RANLIB_CMD])
1154 1155 1156
])# FP_PROG_AR_NEEDS_RANLIB


1157
# FP_GCC_VERSION
1158 1159
# -----------
# Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the
1160
# output variable GccVersion.
1161
AC_DEFUN([FP_GCC_VERSION],
1162
[AC_REQUIRE([AC_PROG_CC])
1163
if test -z "$CC"
1164
then
1165 1166
  AC_MSG_ERROR([gcc is required])
fi
Ian Lynagh's avatar
Ian Lynagh committed
1167 1168
GccLT34=NO
GccLT46=NO
1169
AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
1170 1171 1172 1173 1174 1175 1176 1177
[
    fp_cv_gcc_version="`$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
1178
    FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [4.6], GccLT46=YES)
1179
])
1180
AC_SUBST([GccVersion], [$fp_cv_gcc_version])
1181
AC_SUBST(GccLT34)
Ian Lynagh's avatar
Ian Lynagh committed
1182
AC_SUBST(GccLT46)
1183
])# FP_GCC_VERSION
1184

1185
dnl Check to see if the C compiler is clang or llvm-gcc
1186
dnl
1187
GccIsClang=NO
1188 1189
AC_DEFUN([FP_CC_LLVM_BACKEND],
[AC_REQUIRE([AC_PROG_CC])
1190
AC_MSG_CHECKING([whether C compiler is clang])
1191
$CC -x c /dev/null -dM -E > conftest.txt 2>&1
1192 1193
if grep "__clang__" conftest.txt >/dev/null 2>&1; then
  AC_SUBST([CC_CLANG_BACKEND], [1])
1194
  AC_SUBST([CC_LLVM_BACKEND], [1])
1195
  GccIsClang=YES
1196 1197 1198
  AC_MSG_RESULT([yes])
else
  AC_MSG_RESULT([no])
1199 1200 1201 1202 1203 1204 1205 1206 1207 1208
  AC_MSG_CHECKING([whether C compiler has an LLVM back end])
  if grep "__llvm__" conftest.txt >/dev/null 2>&1; then
    AC_SUBST([CC_CLANG_BACKEND], [0])
    AC_SUBST([CC_LLVM_BACKEND], [1])
    AC_MSG_RESULT([yes])
  else
    AC_SUBST([CC_CLANG_BACKEND], [0])
    AC_SUBST([CC_LLVM_BACKEND], [0])
    AC_MSG_RESULT([no])
  fi
1209
fi
1210
AC_SUBST(GccIsClang)
1211

1212 1213 1214
rm -f conftest.txt
])

sof's avatar
sof committed
1215
dnl Small feature test for perl version. Assumes PerlCmd
1216 1217 1218 1219
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
1220
dnl
1221
AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION],
sof's avatar
sof committed
1222
[$PerlCmd -v >conftest.out 2>&1
1223
   if grep "v5" conftest.out >/dev/null 2>&1; then
dons's avatar
dons committed
1224 1225
      :
   else
1226
      AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.])
dons's avatar
dons committed
1227
   fi
sof's avatar
sof committed
1228 1229
rm -fr conftest*
])
reid's avatar
reid committed
1230

1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245

# 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
1246
[AC_PATH_PROGS([fp_prog_find], [gfind find], find)
1247 1248 1249 1250
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
1251 1252 1253 1254 1255 1256 1257 1258 1259
  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 $fp_prog_find])
      fi ;;
    *) ;;
  esac
1260
  FindCmd="$fp_prog_find"
sof's avatar
sof committed
1261
else
1262 1263 1264
  # 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
1265
fi
1266 1267 1268 1269
rm -f conftest.txt conftest.out
AC_SUBST([FindCmd])[]dnl
])# FP_PROG_FIND

sof's avatar
sof committed
1270

1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290
# 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


1291 1292 1293 1294 1295 1296 1297
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
1298
AC_DEFUN([FPTOOLS_NOCACHE_CHECK],
1299 1300 1301 1302 1303
[AC_MSG_CHECKING([$1])
 $3
 AC_MSG_RESULT([$][$2])
])

1304 1305 1306
dnl
dnl FPTOOLS_GHC_VERSION(version)
dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
1307
dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
1308 1309
dnl
dnl Test for version of installed ghc.  Uses $GHC.
1310
dnl [original version pinched from c2hs]
1311
dnl
1312
AC_DEFUN([FPTOOLS_GHC_VERSION],
1313
[FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
1314
["${WithGhc-ghc}" --version > conftestghc 2>&1
1315
  cat conftestghc >&AS_MESSAGE_LOG_FD
1316 1317
#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'`
1318
  rm -fr conftest*
1319
  if test "[$]fptools_version_of_ghc" = ""
1320
  then
1321 1322 1323 1324 1325 1326 1327
    fptools_version_of_ghc='unknown'
  fi
fptools_version_of_ghc[_major]=`echo [$]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 "[$]fptools_version_of_ghc[_pl]" = ""
1328
then
1329 1330
  fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
  fptools_version_of_ghc[_pl]="0"
1331
else
1332
  fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
1333
fi
1334
#
1335
ifelse($#, [1], [dnl
1336
[$1]="[$]fptools_version_of_ghc[_all]"
1337
], $#, [2], [dnl
1338 1339
[$1]="[$]fptools_version_of_ghc[_major]"
[$2]="[$]fptools_version_of_ghc[_minor]"
1340
], $#, [3], [dnl
1341 1342 1343
[$1]="[$]fptools_version_of_ghc[_major]"
[$2]="[$]fptools_version_of_ghc[_minor]"
[$3]="[$]fptools_version_of_ghc[_pl]"
1344
], $#, [4], [dnl
1345 1346 1347 1348 1349 1350
[$1]="[$]fptools_version_of_ghc[_all]"
[$2]="[$]fptools_version_of_ghc[_major]"
[$3]="[$]fptools_version_of_ghc[_minor]"
[$4]="[$]fptools_version_of_ghc[_pl]"
])
])
1351
])dnl
1352 1353


1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371
# 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


1372 1373
# FP_GEN_DOCBOOK_XML
# ------------------
1374
# Generates a DocBook XML V4.5 document in conftest.xml.
1375 1376 1377 1378 1379 1380 1381
#
# 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
#
1382
AC_DEFUN([FP_GEN_DOCBOOK_XML],
1383
[rm -f conftest.xml conftest-book.xml
1384 1385
cat > conftest.xml << EOF
<?xml version="1.0" encoding="iso-8859-1"?>
1386 1387
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [[