configure.ac 30.8 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!)
#

Ian Lynagh's avatar
Ian Lynagh committed
16
AC_INIT([The Glorious Glasgow Haskell Compilation System], [7.7], [glasgow-haskell-bugs@haskell.org], [ghc])
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
41
dnl ----------------------------------------------------------
dnl ** Find unixy sort and find commands, 
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
94
95
96
dnl ** Tell the make system which OS we are using
dnl $OSTYPE is set by the operating system to "msys" or "cygwin" or something 
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
if test "$WithGhc" != ""; then
  FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
Ian Lynagh's avatar
Ian Lynagh committed
106

107
108
  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
109
110
  fi

111
112
113
114
  AC_SUBST(GhcVersion)dnl
  AC_SUBST(GhcMajVersion)dnl
  AC_SUBST(GhcMinVersion)dnl
  AC_SUBST(GhcPatchLevel)dnl
115
116
  GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
  GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
117

118
119
  BOOTSTRAPPING_GHC_INFO_FIELD([OS_STAGE0],[target os])
  BOOTSTRAPPING_GHC_INFO_FIELD([CC_STAGE0],[C compiler command])
Simon Marlow's avatar
Simon Marlow committed
120
121
122
  dnl ToDo, once "ld command" is reliably available.
  dnl Then, we can remove the LD_STAGE0 hack in mk/build-package-date.mk
  dnl BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
123
  if test "x$OS_STAGE0" != "xOSDarwin"; then
124
125
126
    BOOTSTRAPPING_GHC_INFO_FIELD([AR_STAGE0],[ar command])
    BOOTSTRAPPING_GHC_INFO_FIELD([AR_OPTS_STAGE0],[ar flags])
    BOOTSTRAPPING_GHC_INFO_FIELD([ArSupportsAtFile_STAGE0],[ar supports at file])
127
128
129
130
131
  else
    AR_STAGE0='$(AR)'
    AR_OPTS_STAGE0='$(AR_OPTS)'
    ArSupportsAtFile_STAGE0='$(ArSupportsAtFile)'
  fi
132
133
fi

134
dnl ** Must have GHC to build GHC
ian@well-typed.com's avatar
ian@well-typed.com committed
135
136
137
138
139
if test "$WithGhc" = ""
then
    AC_MSG_ERROR([GHC is required.])
fi
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.4],
140
    [AC_MSG_ERROR([GHC version 7.4 or later is required to compile GHC.])])dnl
Simon Marlow's avatar
Simon Marlow committed
141

ian@well-typed.com's avatar
ian@well-typed.com committed
142
143
144
145
if test `expr $GhcMinVersion % 2` = "1"
then
    if test "$EnableBootstrapWithDevelSnaphost" = "NO"
    then
Simon Marlow's avatar
Simon Marlow committed
146
147
148
149
150
        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
151
152
    fi
fi
153

ian@well-typed.com's avatar
ian@well-typed.com committed
154
155
156
GHC_PACKAGE_DB_FLAG=package-db
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.5],GHC_PACKAGE_DB_FLAG=package-conf)
AC_SUBST(GHC_PACKAGE_DB_FLAG)
Simon Marlow's avatar
Simon Marlow committed
157

158
159
160
# GHC is passed to Cabal, so we need a native path
if test "${WithGhc}" != ""
then
161
    ghc_host_os=`"${WithGhc}" +RTS --info | grep 'Host OS' | sed -e 's/.*, "//' -e 's/")//'`
162

163
    if test "$ghc_host_os" = "mingw32"
164
165
166
167
168
169
    then
        if test "${OSTYPE}" = "msys"
        then
            WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
        else
            # Canonicalise to <drive>:/path/to/ghc
170
            WithGhc=`cygpath -m "${WithGhc}"`
171
172
173
174
175
176
        fi
        echo "GHC path canonicalised to: ${WithGhc}"
    fi
fi
AC_SUBST([WithGhc])

177
178
179
dnl ** Without optimization some INLINE trickery fails for GHCi
SRC_CC_OPTS="-O"

180
181
182
dnl--------------------------------------------------------------------
dnl * Choose host(/target/build) platform
dnl--------------------------------------------------------------------
183
184
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
185

186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
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

202
FPTOOLS_SET_PLATFORM_VARS
203

204
205
# 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
206
207
208
209
210
211
212
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
213

214
215
# Testing if we shall enable shared libs support on Solaris.
# Anything older than SunOS 5.11 aka Solaris 11 (Express) is broken.
216

217
SOLARIS_BROKEN_SHLD=NO
218

219
220
221
222
223
224
225
226
227
case $host in
     i386-*-solaris2)
     # here we go with the test
     MINOR=`uname -r|cut -d '.' -f 2-`
     if test "$MINOR" -lt "11"; then
     	SOLARIS_BROKEN_SHLD=YES
     fi
     ;;
esac
228

229
230
AC_SUBST(SOLARIS_BROKEN_SHLD)

231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
dnl ** Do an unregisterised build?
dnl --------------------------------------------------------------
case "$HostArch" in
    i386|x86_64|powerpc|arm)
        UnregisterisedDefault=NO
        ;;
    *)
        UnregisterisedDefault=YES
        ;;
esac
AC_ARG_ENABLE(unregisterised,
[AC_HELP_STRING([--enable-unregisterised],
[Build an unregisterised compiler (enabled by default on platforms without registerised support) [default="$UnregisterisedDefault"]])],
[ if test x"$enableval" = x"yes"; then
        Unregisterised=YES
  else
        Unregisterised=NO
  fi
],
[Unregisterised="$UnregisterisedDefault"]
)
AC_SUBST(Unregisterised)

254
255
256
257
258
259
260
261
262
AC_ARG_WITH(hc,
[AC_HELP_STRING([--with-hc=ARG],
        [Use ARG as the path to the compiler for compiling ordinary
         Haskell code  (default= value of --with-ghc)])],
[WithHc="$withval"],
[WithHc=$WithGhc]
)
AC_SUBST(WithHc)

263
# This uses GHC, so put it after the "GHC is required" check above:
264
FP_INTREE_GHC_PWD
265
266
267
268
FP_FIND_ROOT

if test "$HostOS" = "mingw32"
then
269
270
    test -d inplace || mkdir inplace

Ian Lynagh's avatar
Ian Lynagh committed
271
    if test "$HostArch" = "i386"
272
    then
273
274
275
276
277
278
279
280
281
282
283
284
285
286
        # 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 -d inplace/mingw ||
             test inplace/mingw -ot ghc-tarballs/mingw/binutils*.tar.lzma  ||
             test inplace/mingw -ot ghc-tarballs/mingw/gcc-core*.tar.lzma  ||
             test inplace/mingw -ot ghc-tarballs/mingw/gcc-c++*.tar.lzma   ||
             test inplace/mingw -ot ghc-tarballs/mingw/libgcc*.tar.gz      ||
             test inplace/mingw -ot ghc-tarballs/mingw/libgmp*.tar.gz      ||
             test inplace/mingw -ot ghc-tarballs/mingw/libmpc*.tar.gz      ||
             test inplace/mingw -ot ghc-tarballs/mingw/libmpfr*.tar.gz     ||
             test inplace/mingw -ot ghc-tarballs/mingw/libstdc*.tar.lzma   ||
             test inplace/mingw -ot ghc-tarballs/mingw/mingwrt*-dev.tar.gz ||
             test inplace/mingw -ot ghc-tarballs/mingw/mingwrt*-dll.tar.gz ||
             test inplace/mingw -ot ghc-tarballs/mingw/w32api*.tar.lzma
287
        then
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
            AC_MSG_NOTICE([Making in-tree mingw tree])
            rm -rf inplace/mingw
            mkdir inplace/mingw
            (
                cd inplace/mingw &&
                tar --lzma -xf ../../ghc-tarballs/mingw/binutils*.tar.lzma  &&
                tar --lzma -xf ../../ghc-tarballs/mingw/gcc-core*.tar.lzma  &&
                tar --lzma -xf ../../ghc-tarballs/mingw/gcc-c++*.tar.lzma   &&
                tar --lzma -xf ../../ghc-tarballs/mingw/libgcc*.tar.lzma    &&
                tar --lzma -xf ../../ghc-tarballs/mingw/libgmp*.tar.lzma    &&
                tar --lzma -xf ../../ghc-tarballs/mingw/libmpc*.tar.lzma    &&
                tar --lzma -xf ../../ghc-tarballs/mingw/libmpfr*.tar.lzma   &&
                tar --lzma -xf ../../ghc-tarballs/mingw/libstdc*.tar.lzma   &&
                tar -z     -xf ../../ghc-tarballs/mingw/mingwrt*-dev.tar.gz &&
                tar -z     -xf ../../ghc-tarballs/mingw/mingwrt*-dll.tar.gz &&
                tar --lzma -xf ../../ghc-tarballs/mingw/w32api*.tar.lzma    &&
                mv bin/gcc.exe 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 tree created])
308
        fi
309
310
311
312
    else
        # 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 -d inplace/mingw ||
313
             test inplace/mingw -ot ghc-tarballs/mingw64/*.tar.bz2
314
315
316
317
318
319
        then
            AC_MSG_NOTICE([Making in-tree mingw tree])
            rm -rf inplace/mingw
            mkdir inplace/mingw
            (
                cd inplace/mingw &&
320
                tar -jxf ../../ghc-tarballs/mingw64/*.tar.bz2
321
322
323
            )
            AC_MSG_NOTICE([In-tree mingw tree created])
        fi
324
    fi
325

326
    mingwbin="$hardtop/inplace/mingw/bin/"
327
328
329
    CC="${mingwbin}gcc.exe"
    LD="${mingwbin}ld.exe"
    NM="${mingwbin}nm.exe"
330
    OBJDUMP="${mingwbin}objdump.exe"
Ian Lynagh's avatar
Ian Lynagh committed
331
    fp_prog_ar="${mingwbin}ar.exe"
332

333
334
335
336
337
338
339
340
341
342
343
344
    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
345
346
fi

Ian Lynagh's avatar
Ian Lynagh committed
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
# 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 $LDFLAGS"
 AC_CHECK_LIB(ffi, ffi_call,
  [AC_CHECK_HEADERS([ffi.h], [break], [])
   AC_DEFINE([HAVE_LIBFFI], [1], [Define to 1 if you have libffi.])],
  [AC_MSG_ERROR([Cannot find system libffi])])
 CFLAGS="$CFLAGS2"
 LDFLAGS="$LDFLAGS2"
])

FP_ICONV
FP_GMP

406
XCODE_VERSION()
Ian Lynagh's avatar
Ian Lynagh committed
407
408
409
410
411
412
413
414
415
416

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 "$XCodeVersion1" -eq 3
417
        then
Ian Lynagh's avatar
Ian Lynagh committed
418
            if test "$XCodeVersion2" -lt 2
419
            then
Ian Lynagh's avatar
Ian Lynagh committed
420
                SplitObjsBroken=YES
421
            fi
422
        fi
423
424
425
426
    fi
fi
AC_SUBST([SplitObjsBroken])

427
428
429
430
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
431
if test "$target" != "$host" ; then
432
433
434
435
436
437
438
439
440
441
    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
442
443
444
  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)
445

Simon Marlow's avatar
Simon Marlow committed
446
447
448
449
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.
450
451
])
fi
452
453
if test "$CrossCompiling" = "YES"
then
454
455
456
457
458
  CrossCompilePrefix="${target}-"
else
  CrossCompilePrefix=""
fi
TargetPlatformFull="${target}"
Simon Marlow's avatar
Simon Marlow committed
459
AC_SUBST(CrossCompiling)
460
461
462
AC_SUBST(CrossCompilePrefix)
AC_SUBST(TargetPlatformFull)

463
464
dnl ** Which gcc to use?
dnl --------------------------------------------------------------
465
466
467
FIND_GCC([WhatGccIsCalled], [gcc], [gcc])
CC="$WhatGccIsCalled"
export CC
468
469
470

dnl ** Which ld to use?
dnl --------------------------------------------------------------
471
FP_ARG_WITH_PATH_GNU_PROG([LD], [ld], [ld])
472
473
474
475
476
LdCmd="$LD"
AC_SUBST([LdCmd])

dnl ** Which nm to use?
dnl --------------------------------------------------------------
477
FP_ARG_WITH_PATH_GNU_PROG([NM], [nm], [nm])
478
479
480
NmCmd="$NM"
AC_SUBST([NmCmd])

481
482
483
484
485
486
487
488
489
490
# 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
491

492
493
dnl ** Which LLVM llc to use?
dnl --------------------------------------------------------------
494
FIND_LLVM_PROG([LLC], [llc], [llc])
495
496
497
498
499
LlcCmd="$LLC"
AC_SUBST([LlcCmd])

dnl ** Which LLVM opt to use?
dnl --------------------------------------------------------------
500
FIND_LLVM_PROG([OPT], [opt], [opt])
501
502
503
OptCmd="$OPT"
AC_SUBST([OptCmd])

sof's avatar
sof committed
504
505
506
507
508
509
510
511
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------


dnl --------------------------------------------------------------
dnl * General configuration checks
dnl --------------------------------------------------------------
sof's avatar
sof committed
512

513
514
515
dnl ** Can the unix package be built?
dnl --------------------------------------------------------------

516
517
518
if test "$TargetOS" = "mingw32"
then
    GhcLibsWithUnix=NO
519
else
520
    GhcLibsWithUnix=YES
521
522
523
fi
AC_SUBST([GhcLibsWithUnix])

524
525
dnl ** does #! work?
AC_SYS_INTERPRETER()
sof's avatar
sof committed
526

Ian Lynagh's avatar
Ian Lynagh committed
527
dnl ** look for `perl'
rrt's avatar
rrt committed
528
529
case $HostOS_CPP in
cygwin32|mingw32)
Ian Lynagh's avatar
Ian Lynagh committed
530
531
    PerlCmd=$hardtop/inplace/perl/perl
    ;;
rrt's avatar
rrt committed
532
*)
Ian Lynagh's avatar
Ian Lynagh committed
533
534
535
536
537
538
539
540
541
542
    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
543
esac
sof's avatar
sof committed
544

rrt's avatar
rrt committed
545
546
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
547
dnl     If gcc, make sure it's at least 3.0
rrt's avatar
rrt committed
548
dnl
549
FP_GCC_VERSION
550

551
552
553
554
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND

555
556
FP_PROG_LD_HashSize31
FP_PROG_LD_ReduceMemoryOverheads
557
558
559
560
FP_PROG_LD_IS_GNU
FP_PROG_LD_BUILD_ID
FP_PROG_LD_NO_COMPACT_UNWIND

561

562
563
564
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])
565
# Stage 3 won't be supported by cross-compilation
566
FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_GCC_LINKER_OPTS_STAGE2],[CONF_LD_LINKER_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
567

568
FP_GCC_EXTRA_FLAGS
rrt's avatar
rrt committed
569
570
571

dnl ** figure out how to invoke cpp directly (gcc -E is no good)
AC_PROG_CPP
572

573
574
575
AC_SUBST(CONF_CC_OPTS_STAGE0)
AC_SUBST(CONF_CC_OPTS_STAGE1)
AC_SUBST(CONF_CC_OPTS_STAGE2)
576
577
578
579
580
581
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)
582
583
584
AC_SUBST(CONF_CPP_OPTS_STAGE0)
AC_SUBST(CONF_CPP_OPTS_STAGE1)
AC_SUBST(CONF_CPP_OPTS_STAGE2)
rrt's avatar
rrt committed
585

586
587
588
589
590
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

591
dnl ** figure out how to do context diffs
592
FP_PROG_CONTEXT_DIFF
sof's avatar
sof committed
593

594
595
596
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
597
598
dnl ** figure out how to do a BSD-ish install
AC_PROG_INSTALL
sof's avatar
sof committed
599

reid's avatar
reid committed
600
dnl If you can run configure, you certainly have /bin/sh
601
AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
reid's avatar
reid committed
602

sof's avatar
sof committed
603
dnl ** how to invoke `ar' and `ranlib'
604
FP_PROG_AR_SUPPORTS_ATFILE
605
FP_PROG_AR_NEEDS_RANLIB
sof's avatar
sof committed
606

607
dnl ** Check to see whether ln -s works
sof's avatar
sof committed
608
609
AC_PROG_LN_S

610
FP_SETTINGS
sof's avatar
sof committed
611
612

dnl ** Find the path to sed
Ian Lynagh's avatar
Ian Lynagh committed
613
AC_PATH_PROGS(SedCmd,gsed sed,sed)
sof's avatar
sof committed
614

sof's avatar
sof committed
615
616

dnl ** check for time command
sof's avatar
sof committed
617
618
AC_PATH_PROG(TimeCmd,time)

sof's avatar
sof committed
619
620
dnl ** check for tar
dnl   if GNU tar is named gtar, look for it first.
621
AC_PATH_PROGS(TarCmd,gnutar gtar tar,tar)
sof's avatar
sof committed
622

Ian Lynagh's avatar
Ian Lynagh committed
623
624
625
626
dnl ** check for patch
dnl if GNU patch is named gpatch, look for it first
AC_PATH_PROGS(PatchCmd,gpatch patch, patch)

627
628
629
630
dnl ** check for dtrace (currently only implemented for Mac OS X)
HaveDtrace=NO
AC_PATH_PROG(DtraceCmd,dtrace)
if test -n "$DtraceCmd"; then
631
  if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple" -o "x$TargetOS_CPP-$TargetVendor_CPP" = "xsolaris2-unknown"; then
632
633
634
635
636
    HaveDtrace=YES
  fi
fi
AC_SUBST(HaveDtrace)

637
AC_PATH_PROG(HSCOLOUR,HsColour)
638
# HsColour is passed to Cabal, so we need a native path
639
640
641
if test "$HostOS"      = "mingw32" && \
   test "${OSTYPE}"   != "msys"    && \
   test "${HSCOLOUR}" != ""
642
643
644
then
    # Canonicalise to <drive>:/path/to/gcc
    HSCOLOUR=`cygpath -m ${HSCOLOUR}`
645
fi
646

647
648
dnl ** check for DocBook toolchain
FP_CHECK_DOCBOOK_DTD
649
FP_DOCBOOK_XSL
650
651
FP_PROG_DBLATEX

reid's avatar
reid committed
652
dnl ** check for ghc-pkg command
653
FP_PROG_GHC_PKG
reid's avatar
reid committed
654

sof's avatar
sof committed
655
dnl ** check for installed happy binary + version
sof's avatar
sof committed
656
FPTOOLS_HAPPY
sof's avatar
sof committed
657

658
659
660
dnl ** check for installed alex binary + version
FPTOOLS_ALEX

sof's avatar
sof committed
661
662
663
dnl --------------------------------------------------
dnl ### program checking section ends here ###
dnl --------------------------------------------------
sof's avatar
sof committed
664

sof's avatar
sof committed
665
666
667
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
668

669
670
dnl ** check for full ANSI header (.h) files
AC_HEADER_STDC
sof's avatar
sof committed
671

672
673
674
675
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

676
dnl ** check for specific header (.h) files that we are interested in
677
678
679
680
681
682
683
684
AC_CHECK_HEADERS([bfd.h 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/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])

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
]])
685

686
687
dnl ** check if it is safe to include both <time.h> and <sys/time.h>
AC_HEADER_TIME
sof's avatar
sof committed
688

689
dnl ** do we have long longs?
690
AC_CHECK_TYPES([long long])
691

reid's avatar
reid committed
692
dnl ** what are the sizes of various types
693
AC_CHECK_SIZEOF(char,               1)
694
695
AC_CHECK_SIZEOF(double,             8)
AC_CHECK_SIZEOF(float,              4)
696
697
AC_CHECK_SIZEOF(int,                4)
AC_CHECK_SIZEOF(long,               4)
698
if test "$ac_cv_type_long_long" = yes; then
699
AC_CHECK_SIZEOF(long long,          8)
700
701
702
703
704
fi
AC_CHECK_SIZEOF(short,              2)
AC_CHECK_SIZEOF(unsigned char,      1)
AC_CHECK_SIZEOF(unsigned int,       4)
AC_CHECK_SIZEOF(unsigned long,      4)
705
if test "$ac_cv_type_long_long" = yes; then
706
707
AC_CHECK_SIZEOF(unsigned long long, 8)
fi
708
AC_CHECK_SIZEOF(unsigned short,     2)
709
AC_CHECK_SIZEOF(void *,             4)
reid's avatar
reid committed
710

711
712
713
714
dnl for use in settings.in
WordSize=$ac_cv_sizeof_void_p
AC_SUBST(WordSize)

reid's avatar
reid committed
715
dnl ** what are alignment constraints on various types
716
717
718
719
720
721
722
FP_CHECK_ALIGNMENT(char)
FP_CHECK_ALIGNMENT(double)
FP_CHECK_ALIGNMENT(float)
FP_CHECK_ALIGNMENT(int)
FP_CHECK_ALIGNMENT(long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_ALIGNMENT(long long)
723
fi
724
725
726
727
728
729
FP_CHECK_ALIGNMENT(short)
FP_CHECK_ALIGNMENT(unsigned char)
FP_CHECK_ALIGNMENT(unsigned int)
FP_CHECK_ALIGNMENT(unsigned long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_ALIGNMENT(unsigned long long)
730
fi
731
732
FP_CHECK_ALIGNMENT(unsigned short)
FP_CHECK_ALIGNMENT(void *)
reid's avatar
reid committed
733

734
735
FP_CHECK_FUNC([WinExec],
  [@%:@include <windows.h>], [WinExec("",0)])
reid's avatar
reid committed
736

737
738
FP_CHECK_FUNC([GetModuleFileName],
  [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
reid's avatar
reid committed
739
740
741
742
743

dnl ** check return type of signal handlers
dnl Foo: assumes we can use prototypes.
dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
744
dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
reid's avatar
reid committed
745
746
747
748
749
dnl #include <signal.h>
dnl #ifdef signal
dnl #undef signal
dnl #endif
dnl void (*signal (int, void (*)(int)))(int);
750
751
752
753
dnl ]],
dnl [[int i;]])],
dnl [ac_cv_type_signal_handler=void_int],
dnl [ac_cv_type_signal_handler=int_void])])
reid's avatar
reid committed
754
755
756
757
758
759
760
dnl if test "$ac_cv_type_signal_handler" = void_int; then
dnl AC_DEFINE(VOID_INT_SIGNALS)
dnl fi

dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
AC_TYPE_SIGNAL
if test "$ac_cv_type_signal" = void; then
761
  AC_DEFINE([VOID_INT_SIGNALS], [1], [Define to 1 if signal handlers have type void (*)(int). Otherwise, they're assumed to have type int (*)(void).])
reid's avatar
reid committed
762
763
764
fi

dnl ** check for more functions
765
dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
766
AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
767

rl@cse.unsw.edu.au's avatar
rl@cse.unsw.edu.au committed
768
769
770
771
772
773
774
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>])

775
776
777
778
779
dnl ** check for mingwex library
AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
AC_SUBST(HaveLibMingwEx)

if test $HaveLibMingwEx = YES ; then
780
  AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
781
782
fi

sebc's avatar
sebc committed
783
dnl ** check for math library
784
785
786
787
dnl    Keep that check as early as possible.
dnl    as we need to know whether we need libm
dnl    for math functions or not
dnl    (see http://hackage.haskell.org/trac/ghc/ticket/3730)
788
789
790
791
792
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
793

794
795
dnl ** check whether this machine has BFD and libiberty installed (used for debugging)
dnl    the order of these tests matters: bfd needs libiberty
796
AC_CHECK_LIB(iberty, xmalloc)
797
AC_CHECK_LIB(bfd,    bfd_uncompress_section_contents)
798

reid's avatar
reid committed
799
800
801
802
dnl ################################################################
dnl Check for libraries
dnl ################################################################

ross's avatar
ross committed
803
dnl ** check whether we need -ldl to get dlopen()
804

Ian Lynagh's avatar
Ian Lynagh committed
805
AC_CHECK_LIB(dl, dlopen,
806
807
    [HaveLibDL=YES
     AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
Ian Lynagh's avatar
Ian Lynagh committed
808
     LIBS="$LIBS -ldl"],
809
810
811
    [HaveLibDL=NO])
AC_SUBST(HaveLibDL)

812
dnl --------------------------------------------------
sof's avatar
sof committed
813
814
815
dnl * Miscellaneous feature tests
dnl --------------------------------------------------

sof's avatar
sof committed
816
dnl ** can we get alloca?
817
AC_FUNC_ALLOCA
sof's avatar
sof committed
818

819
dnl ** working vfork?
820
AC_FUNC_FORK
821

822
823
dnl ** determine whether or not const works
AC_C_CONST
sof's avatar
sof committed
824

825
826
dnl ** are we big endian?
AC_C_BIGENDIAN
827
FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
sof's avatar
sof committed
828

829
dnl ** check for leading underscores in symbol names
830
FP_LEADING_UNDERSCORE
831

832
833
FP_VISIBILITY_HIDDEN

834
835
dnl ** check for librt
AC_CHECK_LIB(rt, clock_gettime)
836
AC_CHECK_FUNCS(clock_gettime timer_settime)
837
FP_CHECK_TIMER_CREATE
838

839
dnl ** check for Apple's "interesting" long double compatibility scheme
840
841
AC_MSG_CHECKING(for printf\$LDBLStub)
AC_TRY_LINK_FUNC(printf\$LDBLStub,
842
843
844
845
846
847
848
849
850
851
852
    [
        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).])
    ])

853
854
855
856
dnl ** check for eventfd which is needed by the I/O manager
AC_CHECK_HEADERS([sys/eventfd.h])
AC_CHECK_FUNCS([eventfd])

857
# checking for PAPI
858
859
860
861
862
AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
AC_SUBST(HavePapiLib)
AC_SUBST(HavePapiHeader)

863
864
AC_CHECK_FUNCS(__mingw_vfprintf)

865
if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
866
867
868
   HavePapi=YES
else
   HavePapi=NO
869
fi
870
AC_SUBST(HavePapi)
871

Simon Marlow's avatar
Simon Marlow committed
872
if test "$HAVE_DOCBOOK_XSL" = "NO" ||
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
   test "$XsltprocCmd" = ""
then
    BUILD_DOCBOOK_HTML=NO
else
    BUILD_DOCBOOK_HTML=YES
fi
AC_SUBST(BUILD_DOCBOOK_HTML)

if test "$DblatexCmd" = ""
then
    BUILD_DOCBOOK_PS=NO
    BUILD_DOCBOOK_PDF=NO
else
    BUILD_DOCBOOK_PS=YES
    BUILD_DOCBOOK_PDF=YES
fi
AC_SUBST(BUILD_DOCBOOK_PS)
AC_SUBST(BUILD_DOCBOOK_PDF)

892
LIBRARY_VERSION(base)
893
LIBRARY_VERSION(Cabal, Cabal/Cabal)
894
LIBRARY_VERSION(ghc-prim)
895
896
LIBRARY_ghc_VERSION="$ProjectVersion"
AC_SUBST(LIBRARY_ghc_VERSION)
897

898
899
900
901
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

902
AC_CONFIG_FILES([mk/config.mk mk/install.mk mk/project.mk compiler/ghc.cabal ghc/ghc-bin.cabal utils/runghc/runghc.cabal ghc.spec settings docs/users_guide/ug-book.xml docs/users_guide/ug-ent.xml docs/index.html libraries/prologue.txt distrib/ghc.iss distrib/configure.ac])
903
904
AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
AC_OUTPUT
905

906
# We got caught by
907
908
909
910
#     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.
911
# We would use "grep -q" here, but Solaris's grep doesn't support it.
912
checkMake380() {
913
    if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
914
915
916
917
918
919
920
921
922
923
924
    then
        echo
        echo "WARNING: It looks like \"$1\" is GNU make 3.80."
        echo "This version cannot be used to build GHC."
        echo "Please use GNU make >= 3.81."
    fi
}

checkMake380 make
checkMake380 gmake

Ian Lynagh's avatar
Ian Lynagh committed
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
echo ["
----------------------------------------------------------------------
Configure completed successfully.

   Building GHC version  : $ProjectVersion

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

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

941
942
943
944
945
946
if test "x$CC_LLVM_BACKEND" = "x1"; then
    if test "x$CC_CLANG_BACKEND" = "x1"; then
        CompilerName="clang        "
    else
        CompilerName="llvm-gcc     "
    fi
947
else
948
    CompilerName="gcc          "
949
950
fi

Ian Lynagh's avatar
Ian Lynagh committed
951
echo ["\
952
   Using $CompilerName       : $WhatGccIsCalled
953
      which is version       : $GccVersion
Simon Marlow's avatar
Simon Marlow committed
954
   Building a cross compiler : $CrossCompiling
Ian Lynagh's avatar
Ian Lynagh committed
955
956

   ld       : $LdCmd
957
958
959
960
   Happy    : $HappyCmd ($HappyVersion)
   Alex     : $AlexCmd ($AlexVersion)
   Perl     : $PerlCmd
   dblatex  : $DblatexCmd
961
962
963
964
965
   xsltproc : $XsltprocCmd

   Using LLVM tools
      llc   : $LlcCmd
      opt   : $OptCmd"]
Ian Lynagh's avatar
Ian Lynagh committed
966
967
968
969
970
971
972
973
974
975
976

if test "$HSCOLOUR" = ""; then
echo ["
   HsColour was not found; documentation will not contain source links
"]
else
echo ["\
   HsColour : $HSCOLOUR
"]
fi

977
978
979
echo ["\
   Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
   Building DocBook PS documentation   : $BUILD_DOCBOOK_PS
980
   Building DocBook PDF documentation  : $BUILD_DOCBOOK_PDF"]
Ian Lynagh's avatar
Ian Lynagh committed
981
982
983
984
985
986
987
988
989
990
991
992
993

echo ["----------------------------------------------------------------------
"]

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
   http://hackage.haskell.org/trac/ghc/wiki/Building
"