configure.ac 40.2 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!)
#

Ben Gamari's avatar
Ben Gamari committed
16
AC_INIT([The Glorious Glasgow Haskell Compilation System], [8.3], [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
37
38
39
40
dnl this makes sure `./configure --target=<cross-compile-target>`
dnl works as expected, since we're slightly modifying how Autoconf
dnl interprets build/host/target and how this interacts with $CC tests
test -n "$target_alias" && ac_tool_prefix=$target_alias-

41
dnl ----------------------------------------------------------
42
dnl ** Find unixy sort and find commands,
43
44
45
46
dnl ** which are needed by FP_SETUP_PROJECT_VERSION

dnl ** Find find command (for Win32's benefit)
FP_PROG_FIND
47
FP_PROG_SORT
48
49

dnl ----------------------------------------------------------
50
51
52
53
FP_SETUP_PROJECT_VERSION

# Hmmm, we fix the RPM release number to 1 here... Is this convenient?
AC_SUBST([release], [1])
54

55
# First off, a distrib sanity check..
56
AC_CONFIG_SRCDIR([mk/config.mk.in])
57

Gabor Greif's avatar
Gabor Greif committed
58
dnl * We require autoconf version 2.60
59
60
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
61
62
63
64
dnl Using autoconf 2.59 started to give nonsense like this
dnl  #define SIZEOF_CHAR 0
dnl recently.
AC_PREREQ([2.60])
65

66
67
68
# -------------------------------------------------------------------------
# Prepare to generate the following header files
#
69
70
#
AC_CONFIG_HEADER(mk/config.h)
71

sof's avatar
sof committed
72
# No, semi-sadly, we don't do `--srcdir'...
73
if test x"$srcdir" != 'x.' ; then
74
    echo "This configuration does not support the \`--srcdir' option.."
75
76
77
    exit 1
fi

sof's avatar
sof committed
78
79
80
81
82
83
84
85
86
87
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 --------------------------------------------------------------
88

89
AC_ARG_WITH([ghc],
90
[AC_HELP_STRING([--with-ghc=ARG],
91
92
93
94
  [Use ARG as the path to GHC  [default=autodetect]])],
  [WithGhc="$withval"],
  [if test "$GHC" = ""; then
    AC_PATH_PROG([GHC], [ghc])
95
  fi
96
  WithGhc="$GHC"])
97

98
dnl ** Tell the make system which OS we are using
99
dnl $OSTYPE is set by the operating system to "msys" or "cygwin" or something
100
101
AC_SUBST(OSTYPE)

Ian Lynagh's avatar
Ian Lynagh committed
102
103
104
105
106
107
108
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
)

109
110
111
112
113
114
AC_ARG_ENABLE(tarballs-autodownload,
[AC_HELP_STRING([--enable-tarballs-autodownload],
                [Automatically download Windows distribution binaries if needed.])],
        TarballsAutodownload=YES,
        TarballsAutodownload=NO
)
115
116
117
118
119

dnl CC_STAGE0 is like the "previous" variable CC (inherited by CC_STAGE[123])
dnl but instead used by stage0 for bootstrapping stage1
AC_ARG_VAR(CC_STAGE0, [C compiler command (bootstrap)])

120
121
if test "$WithGhc" != ""; then
  FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
Ian Lynagh's avatar
Ian Lynagh committed
122

123
  if test "$GhcMajVersion" = "unknown" || test "$GhcMinVersion" = "unknown"; then
124
     AC_MSG_ERROR([Cannot determine the version of $WithGhc.  Is it really GHC?])
Ian Lynagh's avatar
Ian Lynagh committed
125
126
  fi

127
128
129
130
  AC_SUBST(GhcVersion)dnl
  AC_SUBST(GhcMajVersion)dnl
  AC_SUBST(GhcMinVersion)dnl
  AC_SUBST(GhcPatchLevel)dnl
131
132
  GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
  GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
133

134
135
136
137
138
  dnl infer CC_STAGE0 from `ghc --info` unless explicitly set by user
  if test -z "$CC_STAGE0"; then
    BOOTSTRAPPING_GHC_INFO_FIELD([CC_STAGE0],[C compiler command])
  fi

139
  BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
140
141
142
  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])
143
144
fi

145
dnl ** Must have GHC to build GHC
ian@well-typed.com's avatar
ian@well-typed.com committed
146
147
148
149
if test "$WithGhc" = ""
then
    AC_MSG_ERROR([GHC is required.])
fi
150
151
FP_COMPARE_VERSIONS([$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
152

ian@well-typed.com's avatar
ian@well-typed.com committed
153
154
155
156
if test `expr $GhcMinVersion % 2` = "1"
then
    if test "$EnableBootstrapWithDevelSnaphost" = "NO"
    then
Simon Marlow's avatar
Simon Marlow committed
157
158
159
160
161
        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
162
163
    fi
fi
164

165
GHC_PACKAGE_DB_FLAG=package-db
ian@well-typed.com's avatar
ian@well-typed.com committed
166
AC_SUBST(GHC_PACKAGE_DB_FLAG)
Simon Marlow's avatar
Simon Marlow committed
167

168
169
170
171
172
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.11],
                    SUPPORTS_THIS_UNIT_ID=NO,
                    SUPPORTS_THIS_UNIT_ID=YES)
AC_SUBST(SUPPORTS_THIS_UNIT_ID)

173
174
175
# GHC is passed to Cabal, so we need a native path
if test "${WithGhc}" != ""
then
176
    ghc_host_os=`"${WithGhc}" +RTS --info | grep 'Host OS' | sed -e 's/.*, "//' -e 's/")//'`
177

178
    if test "$ghc_host_os" = "mingw32"
179
    then
180
181
182
        # Canonicalise to <drive>:/path/to/ghc
        WithGhc=`cygpath -m "${WithGhc}"`

183
184
185
186
187
        echo "GHC path canonicalised to: ${WithGhc}"
    fi
fi
AC_SUBST([WithGhc])

188
189
190
dnl ** Without optimization some INLINE trickery fails for GHCi
SRC_CC_OPTS="-O"

191
192
193
dnl--------------------------------------------------------------------
dnl * Choose host(/target/build) platform
dnl--------------------------------------------------------------------
194
195
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
196

197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
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

213
FPTOOLS_SET_PLATFORM_VARS
214

215
216
# 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
217
218
219
220
221
222
223
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
224

225
226
# Testing if we shall enable shared libs support on Solaris.
# Anything older than SunOS 5.11 aka Solaris 11 (Express) is broken.
227

228
SOLARIS_BROKEN_SHLD=NO
229

230
231
232
233
234
case $host in
     i386-*-solaris2)
     # here we go with the test
     MINOR=`uname -r|cut -d '.' -f 2-`
     if test "$MINOR" -lt "11"; then
235
         SOLARIS_BROKEN_SHLD=YES
236
237
238
     fi
     ;;
esac
239

240
241
AC_SUBST(SOLARIS_BROKEN_SHLD)

242
243
244
dnl ** Do an unregisterised build?
dnl --------------------------------------------------------------
case "$HostArch" in
245
    i386|x86_64|powerpc|powerpc64|powerpc64le|arm)
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
        UnregisterisedDefault=NO
        ;;
    *)
        UnregisterisedDefault=YES
        ;;
esac
AC_ARG_ENABLE(unregisterised,
[AC_HELP_STRING([--enable-unregisterised],
[Build an unregisterised compiler (enabled by default on platforms without registerised support) [default="$UnregisterisedDefault"]])],
[ if test x"$enableval" = x"yes"; then
        Unregisterised=YES
  else
        Unregisterised=NO
  fi
],
[Unregisterised="$UnregisterisedDefault"]
)
AC_SUBST(Unregisterised)

265
266
267
268
269
270
271
272
273
274
275
276
dnl ** Does target have runtime linker support?
dnl --------------------------------------------------------------
case "$target" in
    powerpc64-*|powerpc64le-*|powerpc-ibm-aix*)
        HaskellHaveRTSLinker=NO
        ;;
    *)
        HaskellHaveRTSLinker=YES
        ;;
esac
AC_SUBST(HaskellHaveRTSLinker)

277
278
279
# Requires FPTOOLS_SET_PLATFORM_VARS to be run first.
FP_FIND_ROOT

280
fail() {
281
282
283
284
285
    echo >&2
    echo "$1" >&2
    exit 1
}

286

287
288
if test "$HostOS" = "mingw32"
then
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
    # Find the mingw-w64 7z file to extract.
    # NB. If you update the tarballs to a new version of gcc, don't
    # forget to tweak the paths in driver/gcc/gcc.c.
    if test "$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

304
305
306
307
set_up_tarballs() {
    AC_MSG_NOTICE([Checking for Windows toolchain tarballs...])
    local action
    if test "$TarballsAutodownload" = "NO"
308
    then
309
        action="verify"
310
    else
311
        action="download"
312
    fi
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
    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
338
339
340
341
342
343

    # 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
344
        local base_dir="../ghc-tarballs/${tarball_dest_dir}"
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
        ( cd inplace &&
        find "${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

371
    mingwbin="$hardtop/inplace/mingw/bin/"
372
373
374
    CC="${mingwbin}gcc.exe"
    LD="${mingwbin}ld.exe"
    NM="${mingwbin}nm.exe"
375
    RANLIB="${mingwbin}ranlib.exe"
376
    OBJDUMP="${mingwbin}objdump.exe"
377
378
    Windres="${mingwbin}windres.exe"
    DllWrap="${mingwbin}dllwrap.exe"
Ian Lynagh's avatar
Ian Lynagh committed
379
    fp_prog_ar="${mingwbin}ar.exe"
380

381
    # NB. Download the perl binaries if required
382
383
384
385
386
387
388
389
390
391
392
393
    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
394
395
fi

Ian Lynagh's avatar
Ian Lynagh committed
396
397
FP_ICONV
FP_GMP
398
FP_CURSES
Ian Lynagh's avatar
Ian Lynagh committed
399

400
XCODE_VERSION()
Ian Lynagh's avatar
Ian Lynagh committed
401

402

403
404
405
406
dnl ** Building a cross compiler?
dnl --------------------------------------------------------------
CrossCompiling=NO
# If 'host' and 'target' differ, then this means we are building a cross-compiler.
Tamar Christina's avatar
Tamar Christina committed
407
if test "$TargetPlatform" != "$HostPlatform" ; then
408
409
410
411
412
413
    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
414
if test "$BuildPlatform" != "$HostPlatform" ; then
415
416
417
   AC_MSG_ERROR([
You've selected:

Tamar Christina's avatar
Tamar Christina committed
418
419
420
  BUILD:  $BuildPlatform   (the architecture we're building on)
  HOST:   $HostPlatform    (the architecture the compiler we're building will execute on)
  TARGET: $TargetPlatform  (the architecture the compiler we're building will produce code for)
421

Simon Marlow's avatar
Simon Marlow committed
422
423
424
425
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.
426
427
])
fi
428
429
if test "$CrossCompiling" = "YES"
then
430
431
432
433
  CrossCompilePrefix="${target}-"
else
  CrossCompilePrefix=""
fi
434
435
436
# Despite its similarity in name to TargetPlatform, TargetPlatformFull is used
# in calls to subproject configure scripts and thus must be set to the autoconf
# triple, not the normalized GHC triple that TargetPlatform is set to.
437
438
439
440
441
442
443
444
#
# We use the non-canonicalized triple, target_alias, here since the subproject
# configure scripts will use this triple to construct the names of the toolchain
# executables. If we instead passed down the triple produced by
# AC_CANONICAL_TARGET then it may look for the target toolchain under the wrong
# name (this is a known problem in the case of the Android NDK, which has
# slightly odd triples).
#
Gabor Greif's avatar
Gabor Greif committed
445
# It may be better to just do away with the GHC triples altogether. This would
446
447
448
# all be taken care of for us if we configured the subprojects using
# AC_CONFIG_DIR, but unfortunately Cabal needs to be the one to do the
# configuration.
449
450
451
452
453
454
455
if test -z "${target_alias}"
then
  # --target wasn't given; use result from AC_CANONICAL_TARGET
  TargetPlatformFull="${target}"
else
  TargetPlatformFull="${target_alias}"
fi
Simon Marlow's avatar
Simon Marlow committed
456
AC_SUBST(CrossCompiling)
457
458
459
AC_SUBST(CrossCompilePrefix)
AC_SUBST(TargetPlatformFull)

460
461
462
dnl ** Which gcc to use?
dnl --------------------------------------------------------------

463
464
465
466
467
468
469
470
471
472
473
474
AC_ARG_WITH([gcc],
        AS_HELP_STRING([--with-gcc=ARG], [Use ARG as the path to gcc (obsolete, use CC=ARG instead) [default=autodetect]]),
        AC_MSG_ERROR([--with-gcc=$withval is obsolete (use './configure CC=$withval' or 'CC=$withval ./configure' instead)]))

AC_ARG_WITH([clang],
        AS_HELP_STRING([--with-clang=ARG], [Use ARG as the path to gcc (obsolete, use CC=ARG instead) [default=autodetect]]),
        AC_MSG_ERROR([--with-clang=$withval is obsolete (use './configure CC=$withval' or 'CC=$withval ./configure' instead)]))

dnl detect compiler (prefer gcc over clang) and set $CC (unless CC already set),
dnl later CC is copied to CC_STAGE{1,2,3}
AC_PROG_CC([gcc clang])

475
476
MAYBE_OVERRIDE_STAGE0([ar],[AR_STAGE0])

477
478
479
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS

480
481
482
dnl ** figure out how to invoke the C preprocessor (i.e. `gcc -E`)
AC_PROG_CPP

483
484
# --with-hs-cpp/--with-hs-cpp-flags
FP_CPP_CMD_WITH_ARGS(HaskellCPPCmd, HaskellCPPArgs)
485
486
AC_SUBST([HaskellCPPCmd])
AC_SUBST([HaskellCPPArgs])
487

488
489
490
491
492
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])

493
494
dnl ** Which ld to use?
dnl --------------------------------------------------------------
495
FIND_LD([LdCmd])
496
497
498
499
AC_SUBST([LdCmd])

dnl ** Which nm to use?
dnl --------------------------------------------------------------
500
FP_ARG_WITH_PATH_GNU_PROG([NM], [nm], [nm])
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526

if test "$TargetOS_CPP" = "darwin"
then
    AC_MSG_CHECKING(whether nm program is broken)
    # Some versions of XCode ship a broken version of `nm`. Detect and work
    # around this issue. See : https://ghc.haskell.org/trac/ghc/ticket/11744
    nmver=$(${NM} --version | grep version | sed 's/ //g')
    case "$nmver" in
        LLVMversion7.3.0|LLVMversion7.3.1)
            AC_MSG_RESULT(yes)
            echo "The detected nm program is broken."
            echo
            echo "See: https://ghc.haskell.org/trac/ghc/ticket/11744"
            echo
            echo "Try re-running configure with:"
            echo
            echo '   ./configure --with-nm=$(xcrun --find nm-classic)'
            echo
            exit 1
            ;;
        *)
            AC_MSG_RESULT(no)
            ;;
        esac
fi

527
528
529
NmCmd="$NM"
AC_SUBST([NmCmd])

530
531
532
533
534
535
dnl ** Which objdump to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([OBJDUMP], [objdump], [objdump])
ObjdumpCmd="$OBJDUMP"
AC_SUBST([ObjdumpCmd])

536
537
538
539
540
541
542
543
544
545
546
547
548
549
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"


550
551
552
553
554
555
556
557
558
559
# 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
560

561
562
563
564
# 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.
565
LlvmVersion=3.9
566
AC_SUBST([LlvmVersion])
567
568
sUPPORTED_LLVM_VERSION=$(echo \($LlvmVersion\) | sed 's/\./,/')
AC_DEFINE_UNQUOTED([sUPPORTED_LLVM_VERSION], ${sUPPORTED_LLVM_VERSION}, [The supported LLVM version number])
569

570
571
dnl ** Which LLVM llc to use?
dnl --------------------------------------------------------------
572
FIND_LLVM_PROG([LLC], [llc], [llc], [$LlvmVersion])
573
574
575
576
577
LlcCmd="$LLC"
AC_SUBST([LlcCmd])

dnl ** Which LLVM opt to use?
dnl --------------------------------------------------------------
578
FIND_LLVM_PROG([OPT], [opt], [opt], [$LlvmVersion])
579
580
581
OptCmd="$OPT"
AC_SUBST([OptCmd])

sof's avatar
sof committed
582
583
584
585
586
587
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------


dnl --------------------------------------------------------------
588
589
590
dnl ** Can the unix package be built?
dnl --------------------------------------------------------------

591
592
593
if test "$TargetOS" = "mingw32"
then
    GhcLibsWithUnix=NO
594
else
595
    GhcLibsWithUnix=YES
596
597
598
fi
AC_SUBST([GhcLibsWithUnix])

599
600
dnl ** does #! work?
AC_SYS_INTERPRETER()
sof's avatar
sof committed
601

602
603
# Check for split-objs
SplitObjsBroken=NO
Ian Lynagh's avatar
Ian Lynagh committed
604
dnl ** look for `perl'
rrt's avatar
rrt committed
605
606
case $HostOS_CPP in
cygwin32|mingw32)
607
608
  PerlCmd=$hardtop/inplace/perl/perl
  ;;
rrt's avatar
rrt committed
609
*)
610
    AC_PATH_PROG([PerlCmd],[perl])
Ian Lynagh's avatar
Ian Lynagh committed
611
612
    if test -z "$PerlCmd"
    then
613
614
        AC_MSG_WARN([No Perl on PATH, disabling split object support])
        SplitObjsBroken=YES
Ian Lynagh's avatar
Ian Lynagh committed
615
616
617
618
    else
        FPTOOLS_CHECK_PERL_VERSION
    fi
    ;;
rrt's avatar
rrt committed
619
esac
620
AC_SUBST([SplitObjsBroken])
sof's avatar
sof committed
621

rrt's avatar
rrt committed
622
623
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
624
dnl     If gcc, make sure it's at least 3.0
rrt's avatar
rrt committed
625
dnl
626
FP_GCC_VERSION
627

Ben Gamari's avatar
Ben Gamari committed
628
629
630
dnl ** See whether gcc supports -no-pie
FP_GCC_SUPPORTS_NO_PIE

631
632
633
634
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND

635
636
637
FP_PROG_LD_IS_GNU
FP_PROG_LD_BUILD_ID
FP_PROG_LD_NO_COMPACT_UNWIND
638
FP_PROG_LD_FILELIST
639

640

641
642
643
644
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])
645
# Stage 3 won't be supported by cross-compilation
646

647
FP_GCC_EXTRA_FLAGS
rrt's avatar
rrt committed
648

649
650
# See rules/distdir-way-opts.mk for details.
# Flags passed to the C compiler
651
652
653
AC_SUBST(CONF_CC_OPTS_STAGE0)
AC_SUBST(CONF_CC_OPTS_STAGE1)
AC_SUBST(CONF_CC_OPTS_STAGE2)
654
# Flags passed to the C compiler when we ask it to link
655
656
657
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
658
# Flags passed to the linker when we ask it to link
659
660
661
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
662
# Flags passed to the C preprocessor
663
664
665
AC_SUBST(CONF_CPP_OPTS_STAGE0)
AC_SUBST(CONF_CPP_OPTS_STAGE1)
AC_SUBST(CONF_CPP_OPTS_STAGE2)
666
667
668
669
# Flags passed to the Haskell compiler
AC_SUBST(CONF_HC_OPTS_STAGE0)
AC_SUBST(CONF_HC_OPTS_STAGE1)
AC_SUBST(CONF_HC_OPTS_STAGE2)
rrt's avatar
rrt committed
670

671
672
673
674
675
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

676
dnl ** figure out how to do context diffs
677
FP_PROG_CONTEXT_DIFF
sof's avatar
sof committed
678

679
680
681
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
682
683
dnl ** figure out how to do a BSD-ish install
AC_PROG_INSTALL
sof's avatar
sof committed
684

sof's avatar
sof committed
685
dnl ** how to invoke `ar' and `ranlib'
686
FP_PROG_AR_SUPPORTS_ATFILE
687
FP_PROG_AR_NEEDS_RANLIB
sof's avatar
sof committed
688

689
dnl ** Check to see whether ln -s works
sof's avatar
sof committed
690
691
AC_PROG_LN_S

692
FP_SETTINGS
sof's avatar
sof committed
693
694

dnl ** Find the path to sed
Ian Lynagh's avatar
Ian Lynagh committed
695
AC_PATH_PROGS(SedCmd,gsed sed,sed)
sof's avatar
sof committed
696

sof's avatar
sof committed
697
698

dnl ** check for time command
sof's avatar
sof committed
699
700
AC_PATH_PROG(TimeCmd,time)

sof's avatar
sof committed
701
702
dnl ** check for tar
dnl   if GNU tar is named gtar, look for it first.
703
AC_PATH_PROGS(TarCmd,gnutar gtar tar,tar)
sof's avatar
sof committed
704

705
706
707
708
709
dnl ** check for compressors
AC_PATH_PROGS(Bzip2Cmd,bzip2, bzip2)
AC_PATH_PROGS(GzipCmd,gzip, gzip)
AC_PATH_PROGS(XzCmd,pxz xz, xz)

Ian Lynagh's avatar
Ian Lynagh committed
710
711
712
713
dnl ** check for patch
dnl if GNU patch is named gpatch, look for it first
AC_PATH_PROGS(PatchCmd,gpatch patch, patch)

714
715
716
717
dnl ** check for dtrace (currently only implemented for Mac OS X)
HaveDtrace=NO
AC_PATH_PROG(DtraceCmd,dtrace)
if test -n "$DtraceCmd"; then
718
  if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple" -o "x$TargetOS_CPP-$TargetVendor_CPP" = "xsolaris2-unknown"; then
719
720
721
722
723
    HaveDtrace=YES
  fi
fi
AC_SUBST(HaveDtrace)

724
AC_PATH_PROG(HSCOLOUR,HsColour)
725
# HsColour is passed to Cabal, so we need a native path
726
727
if test "$HostOS"      = "mingw32" && \
   test "${HSCOLOUR}" != ""
728
729
730
then
    # Canonicalise to <drive>:/path/to/gcc
    HSCOLOUR=`cygpath -m ${HSCOLOUR}`
731
fi
732

733
dnl ** check for Sphinx toolchain
734
735
AC_PATH_PROG(SPHINXBUILD,sphinx-build)
AC_CACHE_CHECK([for version of sphinx-build], fp_cv_sphinx_version,
736
737
changequote(, )dnl
[if test -n "$SPHINXBUILD"; then
738
  fp_cv_sphinx_version=`"$SPHINXBUILD" --version 2>&1 | sed 's/Sphinx\( (sphinx-build)\)\? v\?\([0-9]\.[0-9]\.[0-9]\)/\2/' | head -n1`;
739
740
741
fi;
changequote([, ])dnl
])
742
743
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=;])
744
745
746

dnl ** check for xelatex
AC_PATH_PROG(XELATEX,xelatex)
747

reid's avatar
reid committed
748
dnl ** check for ghc-pkg command
749
FP_PROG_GHC_PKG
reid's avatar
reid committed
750

sof's avatar
sof committed
751
dnl ** check for installed happy binary + version
sof's avatar
sof committed
752
FPTOOLS_HAPPY
sof's avatar
sof committed
753

754
755
756
dnl ** check for installed alex binary + version
FPTOOLS_ALEX

sof's avatar
sof committed
757
758
759
dnl --------------------------------------------------
dnl ### program checking section ends here ###
dnl --------------------------------------------------
sof's avatar
sof committed
760

sof's avatar
sof committed
761
762
763
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
764

765
766
dnl ** check for full ANSI header (.h) files
AC_HEADER_STDC
sof's avatar
sof committed
767

768
769
770
771
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

772
dnl ** check for specific header (.h) files that we are interested in
773
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])
774
775
776
777
778
779
780

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
]])
781

782
783
dnl ** check if it is safe to include both <time.h> and <sys/time.h>
AC_HEADER_TIME
sof's avatar
sof committed
784

785
dnl ** do we have long longs?
786
AC_CHECK_TYPES([long long])
787

reid's avatar
reid committed
788
dnl ** what are the sizes of various types
789
790
791
792
793
FP_CHECK_SIZEOF_AND_ALIGNMENT(char)
FP_CHECK_SIZEOF_AND_ALIGNMENT(double)
FP_CHECK_SIZEOF_AND_ALIGNMENT(float)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int)
FP_CHECK_SIZEOF_AND_ALIGNMENT(long)
794
if test "$ac_cv_type_long_long" = yes; then
795
FP_CHECK_SIZEOF_AND_ALIGNMENT(long long)
796
fi
797
798
799
800
FP_CHECK_SIZEOF_AND_ALIGNMENT(short)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned char)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned int)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned long)
801
if test "$ac_cv_type_long_long" = yes; then
802
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned long long)
803
fi
804
805
806
807
808
809
810
811
812
813
814
815
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned short)
FP_CHECK_SIZEOF_AND_ALIGNMENT(void *)

FP_CHECK_SIZEOF_AND_ALIGNMENT(int8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int64_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint64_t)

reid's avatar
reid committed
816

817
818
819
dnl for use in settings.in
WordSize=$ac_cv_sizeof_void_p
AC_SUBST(WordSize)
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
987
988
989
990
991
992
993
994
995
dnl Some platforms (e.g. Android's Bionic) have pthreads support available
dnl without linking against libpthread. Check whether -lpthread is necessary
dnl to use pthreads.
dnl
dnl Note that it is important that this happens before we AC_CHECK_LIB(thread)
AC_MSG_CHECKING(whether -lpthread is needed for pthreads)
AC_CHECK_FUNC(pthread_create,
    [
        AC_MSG_RESULT(no)
        need_lpthread=0
    ],
    [
        AC_CHECK_LIB(pthread, pthread_create,
            [
                AC_MSG_RESULT(yes)
                need_lpthread=1
            ],
            [
                AC_MSG_RESULT([no pthreads support found.])
                need_lpthread=0
            ])
    ])
AC_DEFINE_UNQUOTED([NEED_PTHREAD_LIB], [$need_lpthread],
    [Define 1 if we need to link code using pthreads with -lpthread])

996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
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)
)

1012
1013
1014
1015
dnl ** check for eventfd which is needed by the I/O manager
AC_CHECK_HEADERS([sys/eventfd.h])
AC_CHECK_FUNCS([eventfd])

1016
1017
1018
1019
1020
1021
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)
1022
   AC_DEFINE([CC_SUPPORTS_TLS],[1],[Define to 1 if __thread is supported])
1023
1024
1025
  ],
  [
   AC_MSG_RESULT(no)
1026
   AC_DEFINE([CC_SUPPORTS_TLS],[0],[Define to 1 if __thread is supported])
1027
1028
  ])

1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
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
1042
1043
1044
1045
1046
1047
1048
1049

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
)

1050
1051
use_large_address_space=no
if test "$ac_cv_sizeof_void_p" -eq 8 ; then
1052
1053
1054
    if test "x$EnableLargeAddressSpace" = "xyes" ; then
        if test "$ghc_host_os" = "darwin" ; then
            use_large_address_space=yes
1055
1056
1057
1058
1059
	elif test "$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
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
        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 "$ac_cv_have_decl_MADV_DONTNEED" = "yes" ; then
                    use_large_address_space=yes
            fi
        fi
    fi
1075
1076
1077
1078
1079
fi
if test "$use_large_address_space" = "yes" ; then
   AC_DEFINE([USE_LARGE_ADDRESS_SPACE], [1], [Enable single heap address space support])
fi

1080
1081
1082
1083
dnl ** Use MMAP in the runtime linker?
dnl --------------------------------------------------------------

case ${TargetOS} in
1084
    linux|linux-android|freebsd|dragonfly|netbsd|openbsd|kfreebsdgnu|gnu|solaris2)
1085
1086
        RtsLinkerUseMmap=1
        ;;
1087
    darwin|ios)
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
        # Don't use mmap on powerpc/darwin as the mmap there doesn't support
        # reallocating. Reallocating is needed to allocate jump islands just
        # after each object image. Jumps to these jump islands use relative
        # branches which are limited to offsets that can be represented in
        # 24-bits.
        if test "$TargetArch" != "powerpc" ; then
            RtsLinkerUseMmap=1
        else
            RtsLinkerUseMmap=0
        fi
        ;;
    *)
        # Windows (which doesn't have mmap) and everything else.
        RtsLinkerUseMmap=0
        ;;
    esac

AC_DEFINE_UNQUOTED([RTS_LINKER_USE_MMAP], [$RtsLinkerUseMmap],
                   [Use mmap in the runtime linker])

Ben Gamari's avatar
Ben Gamari committed
1108
1109
dnl ** Have libdw?
dnl --------------------------------------------------------------
1110
1111
1112
UseLibdw=NO
USE_LIBDW=0
AC_ARG_ENABLE(dwarf-unwind,
Ben Gamari's avatar
Ben Gamari committed
1113
1114
    [AC_HELP_STRING([--enable-dwarf-unwind],
        [Enable DWARF unwinding support in the runtime system via elfutils' libdw [default=no]])],
1115
1116
    [AC_CHECK_LIB(dw, dwfl_attach_state, [UseLibdw=YES], [UseLibdw=NO])],
    [UseLibdw=NO]
Ben Gamari's avatar
Ben Gamari committed
1117
)
1118
1119
1120
1121
1122
AC_SUBST(UseLibdw)
if test $UseLibdw = "YES" ; then
	USE_LIBDW=1
fi
AC_DEFINE_UNQUOTED([USE_LIBDW], [$USE_LIBDW], [Set to 1 to use libdw])
1123

Simon Marlow's avatar
Simon Marlow committed
1124
1125
dnl ** Have libnuma?
dnl --------------------------------------------------------------
1126
HaveLibNuma=0
Simon Marlow's avatar
Simon Marlow committed
1127
AC_CHECK_HEADERS([numa.h numaif.h])
1128
1129
1130
1131

if test "$ac_cv_header_numa_h$ac_cv_header_numaif_h" = "yesyes" ; then
    AC_CHECK_LIB(numa, numa_available,HaveLibNuma=1)
fi
1132
AC_DEFINE_UNQUOTED([HAVE_LIBNUMA], [$HaveLibNuma], [Define to 1 if you have libnuma])
Simon Marlow's avatar
Simon Marlow committed
1133

1134
1135
dnl ** Documentation
dnl --------------------------------------------------------------
1136
1137
1138
1139
1140
1141
1142
1143
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
1144
else
1145
1146
1147
    BUILD_MAN=NO
    BUILD_SPHINX_HTML=NO
    BUILD_SPHINX_PDF=NO
1148
fi
1149
1150
1151
AC_SUBST(BUILD_MAN)
AC_SUBST(BUILD_SPHINX_HTML)
AC_SUBST(BUILD_SPHINX_PDF)
1152

1153
LIBRARY_VERSION(base)
1154
LIBRARY_VERSION(Cabal, Cabal/Cabal)
1155
LIBRARY_VERSION(ghc-prim)
1156
LIBRARY_VERSION(ghc-compact)
1157
1158
LIBRARY_ghc_VERSION="$ProjectVersion"
AC_SUBST(LIBRARY_ghc_VERSION)
1159

1160
1161
1162
1163
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

1164
1165
1166
# Create the configuration for the Hadrian build system if it is present
if test -e hadrian/cfg/system.config.in; then
    AC_CONFIG_FILES([hadrian/cfg/system.config])
1167
fi
1168

1169
# We got caught by
1170
1171
1172
1173
#     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.
1174
# We would use "grep -q" here, but Solaris's grep doesn't support it.
1175
print_make_warning=""
1176
checkMake380() {
1177
1178
    make_ver=`$1 --version 2>&1 | head -1`
    if echo "$make_ver" | grep 'GNU Make 3\.80' > /dev/null
1179
    then
1180
1181
1182
1183
1184
1185
        print_make_warning="true"
    fi
    if echo "$make_ver" | grep 'GNU Make' > /dev/null
    then
        MakeCmd=$1
        AC_SUBST(MakeCmd)
1186
1187
1188
1189
1190
1191
    fi
}

checkMake380 make
checkMake380 gmake

1192
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/ghc-boot-th/ghc-boot-th.cabal libraries/ghci/ghci.cabal settings docs/users_guide/ghc_config.py docs/index.html libraries/prologue.txt utils/mkUserGuidePart/mkUserGuidePart.cabal distrib/configure.ac])
1193
AC_OUTPUT
1194
[
1195
1196
1197
1198
1199
1200
1201
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

1202
echo "
Ian Lynagh's avatar
Ian Lynagh committed
1203
1204
1205
1206
----------------------------------------------------------------------
Configure completed successfully.

   Building GHC version  : $ProjectVersion
1207
          Git commit id  : $ProjectGitCommitId
Ian Lynagh's avatar
Ian Lynagh committed
1208
1209
1210
1211

   Build platform        : $BuildPlatform
   Host platform         : $HostPlatform
   Target platform       : $TargetPlatform
1212
"
Ian Lynagh's avatar
Ian Lynagh committed
1213

1214
echo "\
Ian Lynagh's avatar
Ian Lynagh committed
1215
1216
   Bootstrapping using   : $WithGhc
      which is version   : $GhcVersion
1217
"
Ian Lynagh's avatar
Ian Lynagh committed
1218

1219
1220
1221
1222
1223
1224
if test "x$CC_LLVM_BACKEND" = "x1"; then
    if test "x$CC_CLANG_BACKEND" = "x1"; then
        CompilerName="clang        "
    else
        CompilerName="llvm-gcc     "
    fi
1225
else
1226
    CompilerName="gcc          "
1227
1228
fi

1229
echo "\
1230
1231
   Using (for bootstrapping) : $CC_STAGE0
   Using $CompilerName       : $CC
1232
      which is version       : $GccVersion
Simon Marlow's avatar
Simon Marlow committed
1233
   Building a cross compiler : $CrossCompiling
1234
   Unregisterised            : $Unregisterised
1235
1236
1237
   hs-cpp       : $HaskellCPPCmd
   hs-cpp-flags : $HaskellCPPArgs
   ld           : $LdCmd
1238
1239
   nm           : $NmCmd
   objdump      : $ObjdumpCmd
1240
1241
1242
   Happy        : $HappyCmd ($HappyVersion)
   Alex         : $AlexCmd ($AlexVersion)
   Perl         : $PerlCmd
1243
1244
   sphinx-build : $SPHINXBUILD
   xelatex      : $XELATEX
1245
1246
1247

   Using LLVM tools
      llc   : $LlcCmd
1248
      opt   : $OptCmd"
Ian Lynagh's avatar
Ian Lynagh committed
1249
1250

if test "$HSCOLOUR" = ""; then
1251
echo "
Ian Lynagh's avatar
Ian Lynagh committed
1252
   HsColour was not found; documentation will not contain source links
1253
"
Ian Lynagh's avatar
Ian Lynagh committed
1254
else
1255
echo "\
Ian Lynagh's avatar
Ian Lynagh committed
1256
   HsColour : $HSCOLOUR
1257
"
Ian Lynagh's avatar
Ian Lynagh committed
1258
1259
fi

1260
echo "\
1261
   Tools to build Sphinx HTML documentation available: $BUILD_SPHINX_HTML
1262
   Tools to build Sphinx PDF documentation available: $BUILD_SPHINX_PDF"
Ian Lynagh's avatar
Ian Lynagh committed
1263

1264
1265
echo "----------------------------------------------------------------------
"
Ian Lynagh's avatar
Ian Lynagh committed
1266
1267
1268
1269
1270
1271
1272
1273

echo "\
For a standard build of GHC (fully optimised with profiling), type (g)make.

To make changes to the default build configuration, copy the file
mk/build.mk.sample to mk/build.mk, and edit the settings in there.

For more information on how to configure your GHC build, see
1274
   http://ghc.haskell.org/trac/ghc/wiki/Building
1275
"]