configure.ac 37.3 KB
Newer Older
1
dnl == autoconf source for the Glasgow FP tools ==
2
dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/   +/g;'"
sof's avatar
sof committed
3
dnl  (or some such) to see the outline of this file)
4 5
dnl
#
6
# (c) The University of Glasgow 1994-2012
7
#
8
# Configure script template for GHC
9
#
10
# Process with 'autoreconf' to get a working configure script.
11
#
sof's avatar
sof committed
12 13 14 15
# For the generated configure script, do "./configure --help" to
# see what flags are available. (Better yet, read the documentation!)
#

16
AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.1], [glasgow-haskell-bugs@haskell.org], [ghc-AC_PACKAGE_VERSION])
17

18
# Set this to YES for a released version, otherwise NO
19
: ${RELEASE=NO}
20

21
# The primary version (e.g. 7.5, 7.4.1) is set in the AC_INIT line
22
# above.  If this is not a released version, then we will append the
23
# date to the version number (e.g. 7.4.20111220).  The date is
24
# constructed by finding the date of the most recent patch in the
25
# git repository.  If this is a source distribution (not a git
26 27 28
# checkout), then we ship a file 'VERSION' containing the full version
# when the source distribution was created.

29
if test ! -f mk/config.h.in; then
30
   echo "mk/config.h.in doesn't exist: perhaps you haven't run 'perl boot'?"
31 32 33
   exit 1
fi

34 35
AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args])

36
dnl ----------------------------------------------------------
37
dnl ** Find unixy sort and find commands,
38 39 40 41
dnl ** which are needed by FP_SETUP_PROJECT_VERSION

dnl ** Find find command (for Win32's benefit)
FP_PROG_FIND
42
FP_PROG_SORT
43 44

dnl ----------------------------------------------------------
45 46 47 48
FP_SETUP_PROJECT_VERSION

# Hmmm, we fix the RPM release number to 1 here... Is this convenient?
AC_SUBST([release], [1])
49

50
# First off, a distrib sanity check..
51
AC_CONFIG_SRCDIR([mk/config.mk.in])
52

Gabor Greif's avatar
Gabor Greif committed
53
dnl * We require autoconf version 2.60
54 55
dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
Gabor Greif's avatar
Gabor Greif committed
56 57 58 59
dnl Using autoconf 2.59 started to give nonsense like this
dnl  #define SIZEOF_CHAR 0
dnl recently.
AC_PREREQ([2.60])
60

61 62 63
# -------------------------------------------------------------------------
# Prepare to generate the following header files
#
64 65
#
AC_CONFIG_HEADER(mk/config.h)
66

sof's avatar
sof committed
67
# No, semi-sadly, we don't do `--srcdir'...
68
if test x"$srcdir" != 'x.' ; then
69
    echo "This configuration does not support the \`--srcdir' option.."
70 71 72
    exit 1
fi

sof's avatar
sof committed
73 74 75 76 77 78 79 80 81 82
dnl --------------------------------------------------------------
dnl * Project specific configuration options
dnl --------------------------------------------------------------
dnl What follows is a bunch of options that can either be configured
dnl through command line options to the configure script or by
dnl supplying defns in the build tree's mk/build.mk. Having the option to
dnl use either is considered a Feature.

dnl ** What command to use to compile compiler sources ?
dnl --------------------------------------------------------------
83

84
AC_ARG_WITH([ghc],
85
[AC_HELP_STRING([--with-ghc=ARG],
86 87 88 89
  [Use ARG as the path to GHC  [default=autodetect]])],
  [WithGhc="$withval"],
  [if test "$GHC" = ""; then
    AC_PATH_PROG([GHC], [ghc])
90
  fi
91
  WithGhc="$GHC"])
92

93
dnl ** Tell the make system which OS we are using
94
dnl $OSTYPE is set by the operating system to "msys" or "cygwin" or something
95 96
AC_SUBST(OSTYPE)

Ian Lynagh's avatar
Ian Lynagh committed
97 98 99 100 101 102 103
AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
[AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
                [Allow bootstrapping using a development snapshot of GHC.  This is not guaranteed to work.])],
        EnableBootstrapWithDevelSnaphost=YES,
        EnableBootstrapWithDevelSnaphost=NO
)

104 105 106 107 108 109
AC_ARG_ENABLE(tarballs-autodownload,
[AC_HELP_STRING([--enable-tarballs-autodownload],
                [Automatically download Windows distribution binaries if needed.])],
        TarballsAutodownload=YES,
        TarballsAutodownload=NO
)
110 111
if test "$WithGhc" != ""; then
  FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
Ian Lynagh's avatar
Ian Lynagh committed
112

113 114
  if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
     AC_MSG_ERROR([Cannot determine the version of $WithGhc.  Is it really GHC?])
Ian Lynagh's avatar
Ian Lynagh committed
115 116
  fi

117 118 119 120
  AC_SUBST(GhcVersion)dnl
  AC_SUBST(GhcMajVersion)dnl
  AC_SUBST(GhcMinVersion)dnl
  AC_SUBST(GhcPatchLevel)dnl
121 122
  GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
  GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
123

124
  BOOTSTRAPPING_GHC_INFO_FIELD([CC_STAGE0],[C compiler command])
125
  BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
126 127 128
  BOOTSTRAPPING_GHC_INFO_FIELD([AR_STAGE0],[ar command])
  BOOTSTRAPPING_GHC_INFO_FIELD([AR_OPTS_STAGE0],[ar flags])
  BOOTSTRAPPING_GHC_INFO_FIELD([ArSupportsAtFile_STAGE0],[ar supports at file])
129 130
fi

131
dnl ** Must have GHC to build GHC
ian@well-typed.com's avatar
ian@well-typed.com committed
132 133 134 135
if test "$WithGhc" = ""
then
    AC_MSG_ERROR([GHC is required.])
fi
136 137
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.10],
    [AC_MSG_ERROR([GHC version 7.10 or later is required to compile GHC.])])
Simon Marlow's avatar
Simon Marlow committed
138

ian@well-typed.com's avatar
ian@well-typed.com committed
139 140 141 142
if test `expr $GhcMinVersion % 2` = "1"
then
    if test "$EnableBootstrapWithDevelSnaphost" = "NO"
    then
Simon Marlow's avatar
Simon Marlow committed
143 144 145 146 147
        AC_MSG_ERROR([
     $WithGhc is a development snapshot of GHC, version $GhcVersion.
     Bootstrapping using this version of GHC is not supported, and may not
     work.  Use --enable-bootstrap-with-devel-snapshot to try it anyway,
     or --with-ghc to specify a different GHC to use.])
ian@well-typed.com's avatar
ian@well-typed.com committed
148 149
    fi
fi
150

151
GHC_PACKAGE_DB_FLAG=package-db
ian@well-typed.com's avatar
ian@well-typed.com committed
152
AC_SUBST(GHC_PACKAGE_DB_FLAG)
Simon Marlow's avatar
Simon Marlow committed
153

154 155 156 157 158
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.11],
                    SUPPORTS_THIS_UNIT_ID=NO,
                    SUPPORTS_THIS_UNIT_ID=YES)
AC_SUBST(SUPPORTS_THIS_UNIT_ID)

159 160 161
# GHC is passed to Cabal, so we need a native path
if test "${WithGhc}" != ""
then
162
    ghc_host_os=`"${WithGhc}" +RTS --info | grep 'Host OS' | sed -e 's/.*, "//' -e 's/")//'`
163

164
    if test "$ghc_host_os" = "mingw32"
165 166 167 168 169 170
    then
        if test "${OSTYPE}" = "msys"
        then
            WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
        else
            # Canonicalise to <drive>:/path/to/ghc
171
            WithGhc=`cygpath -m "${WithGhc}"`
172 173 174 175 176 177
        fi
        echo "GHC path canonicalised to: ${WithGhc}"
    fi
fi
AC_SUBST([WithGhc])

178 179 180
dnl ** Without optimization some INLINE trickery fails for GHCi
SRC_CC_OPTS="-O"

181 182 183
dnl--------------------------------------------------------------------
dnl * Choose host(/target/build) platform
dnl--------------------------------------------------------------------
184 185
dnl If we aren't explicitly told what values to use with configure flags,
dnl we ask the bootstrapping compiler what platform it is for
186

187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202
if test "${WithGhc}" != ""
then
        bootstrap_host=`"${WithGhc}" +RTS --info | grep '^ ,("Host platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
        bootstrap_target=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
        if test "$bootstrap_host" != "$bootstrap_target"
        then
                echo "Bootstrapping GHC is a cross compiler. This probably isn't going to work"
        fi
fi

# We have to run these unconditionally, but we may discard their
# results in the following code
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET

203
FPTOOLS_SET_PLATFORM_VARS
204

205 206
# Verify that the installed (bootstrap) GHC is capable of generating
# code for the requested build platform.
ian@well-typed.com's avatar
ian@well-typed.com committed
207 208 209 210 211 212 213
if test "$BuildPlatform" != "$bootstrap_target"
then
    echo "This GHC (${WithGhc}) does not generate code for the build platform"
    echo "   GHC target platform    : $bootstrap_target"
    echo "   Desired build platform : $BuildPlatform"
    exit 1
fi
214

215 216
# Testing if we shall enable shared libs support on Solaris.
# Anything older than SunOS 5.11 aka Solaris 11 (Express) is broken.
217

218
SOLARIS_BROKEN_SHLD=NO
219

220 221 222 223 224
case $host in
     i386-*-solaris2)
     # here we go with the test
     MINOR=`uname -r|cut -d '.' -f 2-`
     if test "$MINOR" -lt "11"; then
225
         SOLARIS_BROKEN_SHLD=YES
226 227 228
     fi
     ;;
esac
229

230 231
AC_SUBST(SOLARIS_BROKEN_SHLD)

232 233 234
dnl ** Do an unregisterised build?
dnl --------------------------------------------------------------
case "$HostArch" in
235
    i386|x86_64|powerpc|powerpc64|powerpc64le|arm)
236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254
        UnregisterisedDefault=NO
        ;;
    *)
        UnregisterisedDefault=YES
        ;;
esac
AC_ARG_ENABLE(unregisterised,
[AC_HELP_STRING([--enable-unregisterised],
[Build an unregisterised compiler (enabled by default on platforms without registerised support) [default="$UnregisterisedDefault"]])],
[ if test x"$enableval" = x"yes"; then
        Unregisterised=YES
  else
        Unregisterised=NO
  fi
],
[Unregisterised="$UnregisterisedDefault"]
)
AC_SUBST(Unregisterised)

255 256 257
# Requires FPTOOLS_SET_PLATFORM_VARS to be run first.
FP_FIND_ROOT

258
fail() {
259 260 261 262 263
    echo >&2
    echo "$1" >&2
    exit 1
}

264

265 266
if test "$HostOS" = "mingw32"
then
267 268 269 270 271 272 273 274 275 276 277 278 279 280 281
    # Find the mingw-w64 7z file to extract.
    # NB. If you update the tarballs to a new version of gcc, don't
    # forget to tweak the paths in driver/gcc/gcc.c.
    if test "$HostArch" = "i386"
    then
        mingw_arch="i686"
        tarball_dest_dir="mingw-w64/x86"
        tarball_mingw_dir="mingw32"
    else
        mingw_arch="x86_64"
        tarball_dest_dir="mingw-w64/x86_64"
        tarball_mingw_dir="mingw64"
    fi
fi

282 283 284 285
set_up_tarballs() {
    AC_MSG_NOTICE([Checking for Windows toolchain tarballs...])
    local action
    if test "$TarballsAutodownload" = "NO"
286
    then
287
        action="verify"
288
    else
289
        action="download"
290
    fi
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
    mk/get-win32-tarballs.sh $action $HostArch > missing-win32-tarballs
    case $? in
        0)
           rm missing-win32-tarballs
           ;;
        2)
           echo
           echo "Error:"
           echo "Needed msys2 tarballs are missing. You have a few options to get them,"
           echo
           echo "  * run configure with the --enable-tarballs-autodownload option"
           echo
           echo "  * run mk/get-win32-tarballs.sh download ${HostArch}"
           echo
           echo "  * manually download the files listed in ./missing-win32-tarballs and place"
           echo "    them in the ghc-tarballs directory."
           echo
           exit 1
           ;;
        *)
           echo
           echo "Error fetching msys2 tarballs; see errors above."
           exit 1
           ;;
    esac
316 317 318 319 320 321

    # Extract all the tarballs in one go
    if ! test -d inplace/mingw
    then
        AC_MSG_NOTICE([Extracting Windows toolchain from archives (may take a while)...])
        rm -rf inplace/mingw
322
        local base_dir="../ghc-tarballs/${tarball_dest_dir}"
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
        ( cd inplace &&
        find "${base_dir}" -name "*.tar.xz" -exec tar xfJ {} \; &&
        rm ".MTREE" &&
        rm ".PKGINFO" &&
        cd .. ) || fail "Error: Could not extract Windows toolchains."

        mv "inplace/${tarball_mingw_dir}" inplace/mingw &&
        touch inplace/mingw

        # NB. Now since the GCC is hardcoded to use /mingw32 we need to
        # make a wrapper around it to give it the proper paths
        mv inplace/mingw/bin/gcc.exe inplace/mingw/bin/realgcc.exe
        PATH=`pwd`/inplace/mingw/bin:$PATH
        inplace/mingw/bin/realgcc.exe driver/gcc/gcc.c driver/utils/cwrapper.c driver/utils/getLocation.c -Idriver/utils -o inplace/mingw/bin/gcc.exe

        AC_MSG_NOTICE([In-tree MingW-w64 tree created])
    fi
}

if test "$HostOS" = "mingw32"
then
    test -d inplace || mkdir inplace

    # NB. Download and extract the MingW-w64 distribution if required
    set_up_tarballs

349
    mingwbin="$hardtop/inplace/mingw/bin/"
350 351 352
    CC="${mingwbin}gcc.exe"
    LD="${mingwbin}ld.exe"
    NM="${mingwbin}nm.exe"
353
    RANLIB="${mingwbin}ranlib.exe"
354
    OBJDUMP="${mingwbin}objdump.exe"
Ian Lynagh's avatar
Ian Lynagh committed
355
    fp_prog_ar="${mingwbin}ar.exe"
356

357
    # NB. Download the perl binaries if required
358 359 360 361 362 363 364 365 366 367 368 369
    if ! test -d inplace/perl ||
         test inplace/perl -ot ghc-tarballs/perl/ghc-perl*.tar.gz
    then
        AC_MSG_NOTICE([Making in-tree perl tree])
        rm -rf inplace/perl
        mkdir inplace/perl
        (
            cd inplace/perl &&
            tar -zxf ../../ghc-tarballs/perl/ghc-perl*.tar.gz
        )
        AC_MSG_NOTICE([In-tree perl tree created])
    fi
370 371
fi

Ian Lynagh's avatar
Ian Lynagh committed
372 373
FP_ICONV
FP_GMP
374
FP_CURSES
Ian Lynagh's avatar
Ian Lynagh committed
375

376
XCODE_VERSION()
Ian Lynagh's avatar
Ian Lynagh committed
377 378 379 380 381 382 383 384 385 386

SplitObjsBroken=NO
if test "$TargetOS_CPP" = "darwin"
then
    # Split objects is broken (#4013) with XCode < 3.2
    if test "$XCodeVersion1" -lt 3
    then
        SplitObjsBroken=YES
    else
        if test "$XCodeVersion1" -eq 3
387
        then
Ian Lynagh's avatar
Ian Lynagh committed
388
            if test "$XCodeVersion2" -lt 2
389
            then
Ian Lynagh's avatar
Ian Lynagh committed
390
                SplitObjsBroken=YES
391
            fi
392
        fi
393 394 395 396
    fi
fi
AC_SUBST([SplitObjsBroken])

397 398 399 400
dnl ** Building a cross compiler?
dnl --------------------------------------------------------------
CrossCompiling=NO
# If 'host' and 'target' differ, then this means we are building a cross-compiler.
Simon Marlow's avatar
Simon Marlow committed
401
if test "$target" != "$host" ; then
402 403 404 405 406 407 408 409 410 411
    CrossCompiling=YES
    cross_compiling=yes   # This tells configure that it can accept just 'target',
                          # otherwise you get
                          #   configure: error: cannot run C compiled programs.
                          #   If you meant to cross compile, use `--host'.
fi
if test "$build" != "$host" ; then
   AC_MSG_ERROR([
You've selected:

Simon Marlow's avatar
Simon Marlow committed
412 413 414
  BUILD:  $build   (the architecture we're building on)
  HOST:   $host    (the architecture the compiler we're building will execute on)
  TARGET: $target  (the architecture the compiler we're building will produce code for)
415

Simon Marlow's avatar
Simon Marlow committed
416 417 418 419
BUILD must equal HOST; that is, we do not support building GHC itself
with a cross-compiler.  To cross-compile GHC itself, set TARGET: stage
1 will be a cross-compiler, and stage 2 will be the cross-compiled
GHC.
420 421
])
fi
422 423
if test "$CrossCompiling" = "YES"
then
424 425 426 427 428
  CrossCompilePrefix="${target}-"
else
  CrossCompilePrefix=""
fi
TargetPlatformFull="${target}"
Simon Marlow's avatar
Simon Marlow committed
429
AC_SUBST(CrossCompiling)
430 431 432
AC_SUBST(CrossCompilePrefix)
AC_SUBST(TargetPlatformFull)

433 434
dnl ** Which gcc to use?
dnl --------------------------------------------------------------
435 436 437
FIND_GCC([WhatGccIsCalled], [gcc], [gcc])
CC="$WhatGccIsCalled"
export CC
438

439 440 441 442 443
# If --with-gcc was used, and we're not cross-compiling, then it also
# applies to the stage0 compiler.
MAYBE_OVERRIDE_STAGE0([gcc],[CC_STAGE0])
MAYBE_OVERRIDE_STAGE0([ar],[AR_STAGE0])

444 445 446
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS

thomie's avatar
thomie committed
447 448 449
dnl ** figure out how to invoke the C preprocessor (i.e. `gcc -E`)
AC_PROG_CPP

450 451
# --with-hs-cpp/--with-hs-cpp-flags
FP_CPP_CMD_WITH_ARGS(HaskellCPPCmd, HaskellCPPArgs)
thomie's avatar
thomie committed
452 453
AC_SUBST([HaskellCPPCmd])
AC_SUBST([HaskellCPPArgs])
454

455 456 457 458 459
FP_SET_CFLAGS_C99([CC],[CFLAGS],[CPPFLAGS])
FP_SET_CFLAGS_C99([CC_STAGE0],[CONF_CC_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])

460 461
dnl ** Which ld to use?
dnl --------------------------------------------------------------
462
FIND_LD([LdCmd])
463 464 465 466
AC_SUBST([LdCmd])

dnl ** Which nm to use?
dnl --------------------------------------------------------------
467
FP_ARG_WITH_PATH_GNU_PROG([NM], [nm], [nm])
468 469 470
NmCmd="$NM"
AC_SUBST([NmCmd])

471 472 473 474 475 476
dnl ** Which objdump to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([OBJDUMP], [objdump], [objdump])
ObjdumpCmd="$OBJDUMP"
AC_SUBST([ObjdumpCmd])

477 478 479 480 481 482 483 484 485 486 487 488 489 490
dnl ** Which ar to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([AR], [ar], [ar])
ArCmd="$AR"
fp_prog_ar="$AR"
AC_SUBST([ArCmd])

dnl ** Which ranlib to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([RANLIB], [ranlib], [ranlib])
RanlibCmd="$RANLIB"
RANLIB="$RanlibCmd"


491 492 493 494 495 496 497 498 499 500
# Note: we may not have objdump on OS X, and we only need it on Windows (for DLL checks)
case $HostOS_CPP in
cygwin32|mingw32)
    dnl ** Which objdump to use?
    dnl --------------------------------------------------------------
    FP_ARG_WITH_PATH_GNU_PROG([OBJDUMP], [objdump], [objdump])
    ObjdumpCmd="$OBJDUMP"
    AC_SUBST([ObjdumpCmd])
    ;;
esac
501

502 503 504 505
# Here is where we re-target which specific version of the LLVM
# tools we are looking for. In the past, GHC supported a number of
# versions of LLVM simultaneously, but that stopped working around
# 3.5/3.6 release of LLVM.
506
LlvmVersion=3.7
507
AC_SUBST([LlvmVersion])
508 509
sUPPORTED_LLVM_VERSION=$(echo \($LlvmVersion\) | sed 's/\./,/')
AC_DEFINE_UNQUOTED([sUPPORTED_LLVM_VERSION], ${sUPPORTED_LLVM_VERSION}, [The supported LLVM version number])
510

511 512
dnl ** Which LLVM llc to use?
dnl --------------------------------------------------------------
513
FIND_LLVM_PROG([LLC], [llc], [llc], [$LlvmVersion])
514 515 516 517 518
LlcCmd="$LLC"
AC_SUBST([LlcCmd])

dnl ** Which LLVM opt to use?
dnl --------------------------------------------------------------
519
FIND_LLVM_PROG([OPT], [opt], [opt], [$LlvmVersion])
520 521 522
OptCmd="$OPT"
AC_SUBST([OptCmd])

sof's avatar
sof committed
523 524 525 526 527 528 529 530
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------


dnl --------------------------------------------------------------
dnl * General configuration checks
dnl --------------------------------------------------------------
sof's avatar
sof committed
531

532 533 534 535 536 537 538 539 540
dnl ** Bug 9439: Some GHC 7.8 releases had broken LLVM code generator.
dnl Unfortunately we don't know whether the user is going to request a
dnl build with the LLVM backend as this is only given in build.mk.
dnl
dnl Instead, we try to do as much work as possible here, checking
dnl whether -fllvm is the stage 0 compiler's default. If so we
dnl fail. If not, we check whether -fllvm is affected explicitly and
dnl if so set a flag. The build system will later check this flag
dnl after the desired build flags are known.
541 542 543 544 545 546 547 548 549 550 551 552

dnl This problem is further complicated by the fact that the llvm
dnl version used by the bootstrap compiler may be different from the
dnl version we arre trying to compile GHC against. Therefore, we need
dnl to find the boostrap compiler's `settings` file then check to see
dnl if the `opt` and `llc` command strings are non-empty and if these
dnl programs exist. Only if they exist to we test for bug #9439.

FIND_GHC_BOOTSTRAP_PROG([BootstrapLlcCmd], [${WithGhc}], "LLVM llc command")
FIND_GHC_BOOTSTRAP_PROG([BootstrapOptCmd], [${WithGhc}], "LLVM opt command")

if test -n "$BootstrapLlcCmd" && test -n "$BootstrapOptCmd"
553 554 555 556 557
then
    AC_MSG_CHECKING(whether bootstrap compiler is affected by bug 9439)
    echo "main = putStrLn \"%function\"" > conftestghc.hs

    # Check whether LLVM backend is default for this platform
558
    "${WithGhc}" -pgmlc="${BootstrapLlcCmd}" -pgmlo="${BootstrapOptCmd}" conftestghc.hs 2>&1 >/dev/null
559
    res=`./conftestghc`
tuncer's avatar
tuncer committed
560
    if test "x$res" = "x%object"
561 562 563 564 565 566 567 568 569 570 571 572 573 574
    then
        AC_MSG_RESULT(yes)
        echo "Buggy bootstrap compiler"
        echo ""
        echo "The stage 0 compiler $WithGhc is affected by GHC Bug \#9439"
        echo "and therefore will miscompile the LLVM backend if -fllvm is"
        echo "used."
        echo
        echo "Please use another bootstrap compiler"
        exit 1
    fi

    # -fllvm is not the default, but set a flag so the Makefile can check
    # -for it in the build flags later on
575
    "${WithGhc}" -fforce-recomp -pgmlc="${BootstrapLlcCmd}" -pgmlo="${BootstrapOptCmd}" -fllvm conftestghc.hs 2>&1 >/dev/null
tuncer's avatar
tuncer committed
576
    if test $? = 0
577 578
    then
        res=`./conftestghc`
tuncer's avatar
tuncer committed
579
        if test "x$res" = "x%object"
580 581 582
        then
            AC_MSG_RESULT(yes)
            GHC_LLVM_AFFECTED_BY_9439=1
tuncer's avatar
tuncer committed
583
        elif test "x$res" = "x%function"
584 585 586 587 588 589 590 591 592 593 594 595
        then
            AC_MSG_RESULT(no)
            GHC_LLVM_AFFECTED_BY_9439=0
        else
            AC_MSG_WARN(unexpected output $res)
        fi
    else
        AC_MSG_RESULT(failed to compile, assuming no)
    fi
fi
AC_SUBST([GHC_LLVM_AFFECTED_BY_9439])

596 597 598
dnl ** Can the unix package be built?
dnl --------------------------------------------------------------

599 600 601
if test "$TargetOS" = "mingw32"
then
    GhcLibsWithUnix=NO
602
else
603
    GhcLibsWithUnix=YES
604 605 606
fi
AC_SUBST([GhcLibsWithUnix])

607 608
dnl ** does #! work?
AC_SYS_INTERPRETER()
sof's avatar
sof committed
609

Ian Lynagh's avatar
Ian Lynagh committed
610
dnl ** look for `perl'
rrt's avatar
rrt committed
611 612
case $HostOS_CPP in
cygwin32|mingw32)
Ian Lynagh's avatar
Ian Lynagh committed
613 614
    PerlCmd=$hardtop/inplace/perl/perl
    ;;
rrt's avatar
rrt committed
615
*)
Ian Lynagh's avatar
Ian Lynagh committed
616 617 618 619 620 621 622 623 624 625
    AC_PATH_PROG(PerlCmd,perl)
    if test -z "$PerlCmd"
    then
        echo "You must install perl before you can continue"
        echo "Perhaps it is already installed, but not in your PATH?"
        exit 1
    else
        FPTOOLS_CHECK_PERL_VERSION
    fi
    ;;
rrt's avatar
rrt committed
626
esac
sof's avatar
sof committed
627

rrt's avatar
rrt committed
628 629
dnl ** look for GCC and find out which version
dnl     Figure out which C compiler to use.  Gcc is preferred.
Gabor Greif's avatar
Gabor Greif committed
630
dnl     If gcc, make sure it's at least 3.0
rrt's avatar
rrt committed
631
dnl
632
FP_GCC_VERSION
633

634 635 636 637
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND

638 639 640
FP_PROG_LD_IS_GNU
FP_PROG_LD_BUILD_ID
FP_PROG_LD_NO_COMPACT_UNWIND
641
FP_PROG_LD_FILELIST
642

643

644 645 646 647
FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS],[IGNORE_LINKER_LD_FLAGS],[CPPFLAGS])
FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_GCC_LINKER_OPTS_STAGE0],[CONF_LD_LINKER_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_GCC_LINKER_OPTS_STAGE1],[CONF_LD_LINKER_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_GCC_LINKER_OPTS_STAGE2],[CONF_LD_LINKER_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
648
# Stage 3 won't be supported by cross-compilation
649

650
FP_GCC_EXTRA_FLAGS
rrt's avatar
rrt committed
651

652 653 654
AC_SUBST(CONF_CC_OPTS_STAGE0)
AC_SUBST(CONF_CC_OPTS_STAGE1)
AC_SUBST(CONF_CC_OPTS_STAGE2)
655 656 657 658 659 660
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
661 662 663
AC_SUBST(CONF_CPP_OPTS_STAGE0)
AC_SUBST(CONF_CPP_OPTS_STAGE1)
AC_SUBST(CONF_CPP_OPTS_STAGE2)
rrt's avatar
rrt committed
664

665 666 667 668 669
dnl ** Set up the variables for the platform in the settings file.
dnl May need to use gcc to find platform details.
dnl --------------------------------------------------------------
FPTOOLS_SET_HASKELL_PLATFORM_VARS

670
dnl ** figure out how to do context diffs
671
FP_PROG_CONTEXT_DIFF
sof's avatar
sof committed
672

673 674 675
dnl Let's make sure install-sh is executable here.  If we got it from
dnl a darcs repo, it might not be (see bug #978).
chmod +x install-sh
676 677
dnl ** figure out how to do a BSD-ish install
AC_PROG_INSTALL
sof's avatar
sof committed
678

sof's avatar
sof committed
679
dnl ** how to invoke `ar' and `ranlib'
680
FP_PROG_AR_SUPPORTS_ATFILE
681
FP_PROG_AR_NEEDS_RANLIB
sof's avatar
sof committed
682

683
dnl ** Check to see whether ln -s works
sof's avatar
sof committed
684 685
AC_PROG_LN_S

686
FP_SETTINGS
sof's avatar
sof committed
687 688

dnl ** Find the path to sed
Ian Lynagh's avatar
Ian Lynagh committed
689
AC_PATH_PROGS(SedCmd,gsed sed,sed)
sof's avatar
sof committed
690

sof's avatar
sof committed
691 692

dnl ** check for time command
sof's avatar
sof committed
693 694
AC_PATH_PROG(TimeCmd,time)

sof's avatar
sof committed
695 696
dnl ** check for tar
dnl   if GNU tar is named gtar, look for it first.
697
AC_PATH_PROGS(TarCmd,gnutar gtar tar,tar)
sof's avatar
sof committed
698

Ian Lynagh's avatar
Ian Lynagh committed
699 700 701 702
dnl ** check for patch
dnl if GNU patch is named gpatch, look for it first
AC_PATH_PROGS(PatchCmd,gpatch patch, patch)

703 704 705 706
dnl ** check for dtrace (currently only implemented for Mac OS X)
HaveDtrace=NO
AC_PATH_PROG(DtraceCmd,dtrace)
if test -n "$DtraceCmd"; then
707
  if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple" -o "x$TargetOS_CPP-$TargetVendor_CPP" = "xsolaris2-unknown"; then
708 709 710 711 712
    HaveDtrace=YES
  fi
fi
AC_SUBST(HaveDtrace)

713
AC_PATH_PROG(HSCOLOUR,HsColour)
714
# HsColour is passed to Cabal, so we need a native path
715 716 717
if test "$HostOS"      = "mingw32" && \
   test "${OSTYPE}"   != "msys"    && \
   test "${HSCOLOUR}" != ""
718 719 720
then
    # Canonicalise to <drive>:/path/to/gcc
    HSCOLOUR=`cygpath -m ${HSCOLOUR}`
721
fi
722

723
dnl ** check for Sphinx toolchain
724 725
AC_PATH_PROG(SPHINXBUILD,sphinx-build)
AC_CACHE_CHECK([for version of sphinx-build], fp_cv_sphinx_version,
726 727
changequote(, )dnl
[if test -n "$SPHINXBUILD"; then
728
  fp_cv_sphinx_version=`"$SPHINXBUILD" --version 2>&1 | sed 's/Sphinx\( (sphinx-build)\)\? v\?\([0-9]\.[0-9]\.[0-9]\)/\2/' | head -n1`;
729 730 731
fi;
changequote([, ])dnl
])
732 733
FP_COMPARE_VERSIONS([$fp_cv_sphinx_version],-lt,1.0.0,
    [AC_MSG_WARN([Sphinx version 1.0.0 or later is required to build documentation]); SPHINXBUILD=;])
734 735 736

dnl ** check for xelatex
AC_PATH_PROG(XELATEX,xelatex)
737

reid's avatar
reid committed
738
dnl ** check for ghc-pkg command
739
FP_PROG_GHC_PKG
reid's avatar
reid committed
740

sof's avatar
sof committed
741
dnl ** check for installed happy binary + version
sof's avatar
sof committed
742
FPTOOLS_HAPPY
sof's avatar
sof committed
743

744 745 746
dnl ** check for installed alex binary + version
FPTOOLS_ALEX

sof's avatar
sof committed
747 748 749
dnl --------------------------------------------------
dnl ### program checking section ends here ###
dnl --------------------------------------------------
sof's avatar
sof committed
750

sof's avatar
sof committed
751 752 753
dnl --------------------------------------------------
dnl * Platform header file and syscall feature tests
dnl ### checking the state of the local header files and syscalls ###
sof's avatar
sof committed
754

755 756
dnl ** check for full ANSI header (.h) files
AC_HEADER_STDC
sof's avatar
sof committed
757

758 759 760 761
dnl ** Enable large file support.  NB. do this before testing the type of
dnl    off_t, because it will affect the result of that test.
AC_SYS_LARGEFILE

762
dnl ** check for specific header (.h) files that we are interested in
763
AC_CHECK_HEADERS([ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/param.h sys/mman.h sys/resource.h sys/select.h sys/time.h sys/timeb.h sys/timerfd.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
764 765 766 767 768 769 770

dnl sys/cpuset.h needs sys/param.h to be included first on FreeBSD 9.1; #7708
AC_CHECK_HEADERS([sys/cpuset.h], [], [],
[[#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
]])
771

772 773
dnl ** check if it is safe to include both <time.h> and <sys/time.h>
AC_HEADER_TIME
sof's avatar
sof committed
774

775
dnl ** do we have long longs?
776
AC_CHECK_TYPES([long long])
777

reid's avatar
reid committed
778
dnl ** what are the sizes of various types
779
AC_CHECK_SIZEOF(char,               1)
780 781
AC_CHECK_SIZEOF(double,             8)
AC_CHECK_SIZEOF(float,              4)
782 783
AC_CHECK_SIZEOF(int,                4)
AC_CHECK_SIZEOF(long,               4)
784
if test "$ac_cv_type_long_long" = yes; then
785
AC_CHECK_SIZEOF(long long,          8)
786 787 788 789 790
fi
AC_CHECK_SIZEOF(short,              2)
AC_CHECK_SIZEOF(unsigned char,      1)
AC_CHECK_SIZEOF(unsigned int,       4)
AC_CHECK_SIZEOF(unsigned long,      4)
791
if test "$ac_cv_type_long_long" = yes; then
792 793
AC_CHECK_SIZEOF(unsigned long long, 8)
fi
794
AC_CHECK_SIZEOF(unsigned short,     2)
795
AC_CHECK_SIZEOF(void *,             4)
reid's avatar
reid committed
796

797 798 799 800
dnl for use in settings.in
WordSize=$ac_cv_sizeof_void_p
AC_SUBST(WordSize)

reid's avatar
reid committed
801
dnl ** what are alignment constraints on various types
802 803 804 805 806 807 808
FP_CHECK_ALIGNMENT(char)
FP_CHECK_ALIGNMENT(double)
FP_CHECK_ALIGNMENT(float)
FP_CHECK_ALIGNMENT(int)
FP_CHECK_ALIGNMENT(long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_ALIGNMENT(long long)
809
fi
810 811 812 813 814 815
FP_CHECK_ALIGNMENT(short)
FP_CHECK_ALIGNMENT(unsigned char)
FP_CHECK_ALIGNMENT(unsigned int)
FP_CHECK_ALIGNMENT(unsigned long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_ALIGNMENT(unsigned long long)
816
fi
817 818
FP_CHECK_ALIGNMENT(unsigned short)
FP_CHECK_ALIGNMENT(void *)
reid's avatar
reid committed
819

820 821
FP_CHECK_FUNC([WinExec],
  [@%:@include <windows.h>], [WinExec("",0)])
reid's avatar
reid committed
822

823 824
FP_CHECK_FUNC([GetModuleFileName],
  [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
reid's avatar
reid committed
825 826

dnl ** check for more functions
827
dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
828
AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
829

rl@cse.unsw.edu.au's avatar
rl@cse.unsw.edu.au committed
830 831 832 833 834 835 836
dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
dnl ** _POSIX_C_SOURCE is defined
AC_CHECK_DECLS([ctime_r], , ,
[#define _POSIX_SOURCE 1
#define _POSIX_C_SOURCE 199506L
#include <time.h>])

837 838 839 840 841
dnl ** check for mingwex library
AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
AC_SUBST(HaveLibMingwEx)

if test $HaveLibMingwEx = YES ; then
842
  AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
843 844
fi

sebc's avatar
sebc committed
845
dnl ** check for math library
846 847 848
dnl    Keep that check as early as possible.
dnl    as we need to know whether we need libm
dnl    for math functions or not
849
dnl    (see http://ghc.haskell.org/trac/ghc/ticket/3730)
850 851 852 853 854
AC_CHECK_LIB(m, atan, HaveLibM=YES, HaveLibM=NO)
if test $HaveLibM = YES
then
  AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])
fi
sebc's avatar
sebc committed
855

856
FP_BFD_SUPPORT
857

reid's avatar
reid committed
858 859 860 861
dnl ################################################################
dnl Check for libraries
dnl ################################################################

862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909
# system libffi

AC_ARG_WITH([system-libffi],
[AC_HELP_STRING([--with-system-libffi],
  [Use system provided libffi for RTS [default=no]])
])

AS_IF([test "x$with_system_libffi" = "xyes"],
  [UseSystemLibFFI="YES"], [UseSystemLibFFI="NO"]
)


AC_SUBST(UseSystemLibFFI)

AC_ARG_WITH([ffi-includes],
[AC_HELP_STRING([--with-ffi-includes=ARG],
  [Find includes for libffi in ARG [default=system default]])
],
[
 if test "x$UseSystemLibFFI" != "xYES"; then
    AC_MSG_WARN([--with-ffi-includes will be ignored, --with-system-libffi not set])
 else
    FFIIncludeDir="$withval"
    LIBFFI_CFLAGS="-I$withval"
 fi
])

AC_SUBST(FFIIncludeDir)

AC_ARG_WITH([ffi-libraries],
[AC_HELP_STRING([--with-ffi-libraries=ARG],
  [Find libffi in ARG [default=system default]])
],
[
 if test "x$UseSystemLibFFI" != "xYES"; then
    AC_MSG_WARN([--with-ffi-libraries will be ignored, --with-system-libffi not set])
 else
    FFILibDir="$withval" LIBFFI_LDFLAGS="-L$withval"
 fi
])

AC_SUBST(FFILibDir)

AS_IF([test "$UseSystemLibFFI" = "YES"], [
 CFLAGS2="$CFLAGS"
 CFLAGS="$LIBFFI_CFLAGS $CFLAGS"
 LDFLAGS2="$LDFLAGS"
 LDFLAGS="$LIBFFI_LDFLAGS $LDFLAGS"
910 911 912 913 914 915 916 917 918
 if test "$HostOS" = "openbsd";
 then
   # OpenBSD's libffi is not directly linked to the libpthread but
   # still requires pthread functionality. This means that any client
   # binary which links with libffi also needs to link with
   # libpthread. If it does not, then linking fails with unresolved
   # symbols.
   LDFLAGS="$LDFLAGS -lpthread"
 fi
919 920 921 922 923 924 925 926
 AC_CHECK_LIB(ffi, ffi_call,
  [AC_CHECK_HEADERS([ffi.h], [break], [])
   AC_DEFINE([HAVE_LIBFFI], [1], [Define to 1 if you have libffi.])],
  [AC_MSG_ERROR([Cannot find system libffi])])
 CFLAGS="$CFLAGS2"
 LDFLAGS="$LDFLAGS2"
])

ross's avatar
ross committed
927
dnl ** check whether we need -ldl to get dlopen()
928
AC_CHECK_LIB(dl, dlopen)
929

930
dnl --------------------------------------------------
sof's avatar
sof committed
931 932 933
dnl * Miscellaneous feature tests
dnl --------------------------------------------------

sof's avatar
sof committed
934
dnl ** can we get alloca?
935
AC_FUNC_ALLOCA
sof's avatar
sof committed
936

937
dnl ** working vfork?
938
AC_FUNC_FORK
939

940 941
dnl ** determine whether or not const works
AC_C_CONST
sof's avatar
sof committed
942

943 944
dnl ** are we big endian?
AC_C_BIGENDIAN
945
FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
sof's avatar
sof committed
946

947
dnl ** check for leading underscores in symbol names
948
FP_LEADING_UNDERSCORE
949

950 951
FP_VISIBILITY_HIDDEN

952 953
dnl ** check for librt
AC_CHECK_LIB(rt, clock_gettime)
954
AC_CHECK_FUNCS(clock_gettime timer_settime)
955
FP_CHECK_TIMER_CREATE
956

957
dnl ** check for Apple's "interesting" long double compatibility scheme
958 959
AC_MSG_CHECKING(for printf\$LDBLStub)
AC_TRY_LINK_FUNC(printf\$LDBLStub,
960 961 962 963 964 965 966 967 968 969 970
    [
        AC_MSG_RESULT(yes)
        AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
            [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
    ],
    [
        AC_MSG_RESULT(no)
        AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
            [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
    ])

971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986
dnl ** pthread_setname_np is a recent addition to glibc, and OS X has
dnl    a different single-argument version.
AC_CHECK_LIB(pthread, pthread_setname_np)
AC_MSG_CHECKING(for pthread_setname_np)
AC_TRY_LINK(
[
#define _GNU_SOURCE
#include <pthread.h>
],
[pthread_setname_np(pthread_self(), "name");],
    AC_MSG_RESULT(yes)
    AC_DEFINE([HAVE_PTHREAD_SETNAME_NP], [1],
      [Define to 1 if you have the glibc version of pthread_setname_np]),
    AC_MSG_RESULT(no)
)

987 988 989 990
dnl ** check for eventfd which is needed by the I/O manager
AC_CHECK_HEADERS([sys/eventfd.h])
AC_CHECK_FUNCS([eventfd])

991 992 993 994 995 996
dnl ** Check for __thread support in the compiler
AC_MSG_CHECKING(for __thread support)
AC_COMPILE_IFELSE(
  [ AC_LANG_SOURCE([[__thread int tester = 0;]]) ],
  [
   AC_MSG_RESULT(yes)
997
   AC_DEFINE([CC_SUPPORTS_TLS],[1],[Define to 1 if __thread is supported])
998 999 1000
  ],
  [
   AC_MSG_RESULT(no)
1001
   AC_DEFINE([CC_SUPPORTS_TLS],[0],[Define to 1 if __thread is supported])
1002 1003
  ])

1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
dnl large address space support (see includes/rts/storage/MBlock.h)
dnl
dnl Darwin has vm_allocate/vm_protect
dnl Linux has mmap(MAP_NORESERVE)/madv(MADV_DONTNEED)
dnl FreeBSD, Solaris and maybe other have MAP_NORESERVE/MADV_FREE
dnl (They also have MADV_DONTNEED, but it means something else!)
dnl
dnl Windows has VirtualAlloc MEM_RESERVE/MEM_COMMIT, however
dnl it counts page-table space as committed memory, and so quickly
dnl runs out of paging file when we have multiple processes reserving
dnl 1TB of address space, we get the following error:
dnl    VirtualAlloc MEM_RESERVE 1099512676352 bytes failed: The paging file is too small for this operation to complete.
dnl
1017 1018 1019 1020 1021 1022 1023 1024

AC_ARG_ENABLE(large-address-space,
    [AC_HELP_STRING([--enable-large-address-space],
        [Use a single large address space on 64 bit systems (enabled by default on 64 bit platforms)])],
    EnableLargeAddressSpace=$enableval,
    EnableLargeAddressSpace=yes
)

1025 1026
use_large_address_space=no
if test "$ac_cv_sizeof_void_p" -eq 8 ; then
1027 1028 1029
    if test "x$EnableLargeAddressSpace" = "xyes" ; then
        if test "$ghc_host_os" = "darwin" ; then
            use_large_address_space=yes
1030 1031 1032 1033 1034
	elif test "$ghc_host_os" = "openbsd" ; then
	    # as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE.
	    # The flag MAP_NORESERVE is supported for source compatibility reasons,
	    # but is completely ignored by OS mmap
            use_large_address_space=no
1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049
        else
            AC_CHECK_DECLS([MAP_NORESERVE, MADV_FREE, MADV_DONTNEED],[],[],
                [
                #include <unistd.h>
                #include <sys/types.h>
                #include <sys/mman.h>
                #include <fcntl.h>
            ])
            if test "$ac_cv_have_decl_MAP_NORESERVE" = "yes" &&
                test "$ac_cv_have_decl_MADV_FREE" = "yes" ||
                test "$ac_cv_have_decl_MADV_DONTNEED" = "yes" ; then
                    use_large_address_space=yes
            fi
        fi
    fi
1050 1051 1052 1053 1054
fi
if test "$use_large_address_space" = "yes" ; then
   AC_DEFINE([USE_LARGE_ADDRESS_SPACE], [1], [Enable single heap address space support])
fi

Ben Gamari's avatar
Ben Gamari committed
1055 1056 1057 1058 1059 1060 1061 1062
dnl ** Have libdw?
dnl --------------------------------------------------------------
AC_ARG_ENABLE(libdw,
    [AC_HELP_STRING([--enable-dwarf-unwind],
        [Enable DWARF unwinding support in the runtime system via elfutils' libdw [default=no]])],
    [AC_CHECK_LIB(dw, dwfl_attach_state, [HaveLibdw=YES], [HaveLibdw=NO])],
    [HaveLibdw=NO]
)
1063 1064
AC_SUBST(HaveLibdw)

1065 1066 1067 1068 1069 1070 1071 1072
if test -n "$SPHINXBUILD"; then
    BUILD_MAN=YES
    BUILD_SPHINX_HTML=YES
    if test -n "$XELATEX"; then
        BUILD_SPHINX_PDF=YES
    else
        BUILD_SPHINX_PDF=NO
    fi
1073
else
1074 1075 1076
    BUILD_MAN=NO
    BUILD_SPHINX_HTML=NO
    BUILD_SPHINX_PDF=NO
1077
fi
1078 1079 1080
AC_SUBST(BUILD_MAN)
AC_SUBST(BUILD_SPHINX_HTML)
AC_SUBST(BUILD_SPHINX_PDF)
1081

1082
LIBRARY_VERSION(base)
1083
LIBRARY_VERSION(Cabal, Cabal/Cabal)
1084
LIBRARY_VERSION(ghc-prim)
1085 1086
LIBRARY_ghc_VERSION="$ProjectVersion"
AC_SUBST(LIBRARY_ghc_VERSION)
1087

1088 1089 1090 1091
if grep '	' compiler/ghc.cabal.in 2>&1 >/dev/null; then
   AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
fi

1092
# Create the configuration for the Shake-based build system if it is present
1093 1094
if test -e shake-build/cfg/system.config.in; then
    AC_CONFIG_FILES([shake-build/cfg/system.config])
1095
fi
1096

1097
# We got caught by
1098 1099 1100 1101
#     http://savannah.gnu.org/bugs/index.php?1516
#     $(eval ...) inside conditionals causes errors
# with make 3.80, so warn the user if it looks like they're about to
# try to use it.
1102
# We would use "grep -q" here, but Solaris's grep doesn't support it.
1103
print_make_warning=""
1104
checkMake380() {
1105 1106
    make_ver=`$1 --version 2>&1 | head -1`
    if echo "$make_ver" | grep 'GNU Make 3\.80' > /dev/null
1107
    then
1108 1109 1110 1111 1112 1113
        print_make_warning="true"
    fi
    if echo "$make_ver" | grep 'GNU Make' > /dev/null
    then
        MakeCmd=$1
        AC_SUBST(MakeCmd)
1114 1115 1116 1117 1118 1119
    fi
}

checkMake380 make
checkMake380 gmake

1120 1121 1122 1123 1124 1125 1126 1127 1128 1129
AC_CONFIG_FILES([mk/config.mk mk/install.mk mk/project.mk compiler/ghc.cabal ghc/ghc-bin.cabal utils/runghc/runghc.cabal libraries/ghc-boot/ghc-boot.cabal libraries/ghci/ghci.cabal settings docs/users_guide/ghc_config.py docs/index.html libraries/prologue.txt distrib/configure.ac])
AC_OUTPUT

if test "$print_make_warning" = "true"; then
   echo
   echo "WARNING: It looks like \"$MakeCmd\" is GNU make 3.80."
   echo "This version cannot be used to build GHC."
   echo "Please use GNU make >= 3.81."
fi

Ian Lynagh's avatar
Ian Lynagh committed
1130 1131 1132 1133 1134
echo ["
----------------------------------------------------------------------
Configure completed successfully.

   Building GHC version  : $ProjectVersion
1135
          Git commit id  : $ProjectGitCommitId
Ian Lynagh's avatar
Ian Lynagh committed
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146

   Build platform        : $BuildPlatform
   Host platform         : $HostPlatform
   Target platform       : $TargetPlatform
"]

echo ["\
   Bootstrapping using   : $WithGhc
      which is version   : $GhcVersion
"]

1147 1148 1149 1150 1151 1152
if test "x$CC_LLVM_BACKEND" = "x1"; then
    if test "x$CC_CLANG_BACKEND" = "x1"; then
        CompilerName="clang        "
    else
        CompilerName="llvm-gcc     "
    fi
1153
else
1154
    CompilerName="gcc          "
1155 1156
fi

Ian Lynagh's avatar
Ian Lynagh committed
1157
echo ["\
1158
   Using $CompilerName       : $WhatGccIsCalled
1159
      which is version       : $GccVersion
Simon Marlow's avatar
Simon Marlow committed
1160
   Building a cross compiler : $CrossCompiling
thomie's avatar
thomie committed
1161 1162 1163
   hs-cpp       : $HaskellCPPCmd
   hs-cpp-flags : $HaskellCPPArgs
   ld           : $LdCmd
1164 1165
   nm           : $NmCmd
   objdump      : $ObjdumpCmd
thomie's avatar
thomie committed
1166 1167 1168
   Happy        : $HappyCmd ($HappyVersion)
   Alex         : $AlexCmd ($AlexVersion)
   Perl         : $PerlCmd
1169 1170
   sphinx-build : $SPHINXBUILD
   xelatex      : $XELATEX
1171 1172 1173 1174

   Using LLVM tools
      llc   : $LlcCmd
      opt   : $OptCmd"]
Ian Lynagh's avatar
Ian Lynagh committed