Bump version to 7.1
[ghc.git] / configure.ac
1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/   +/g;'"
3 dnl  (or some such) to see the outline of this file)
4 dnl
5 #
6 # (c) The University of Glasgow 1994-2004
7 #
8 # Configure script template for GHC
9 #
10 # Process with 'autoreconf' to get a working configure script.
11 #
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
14 #
15
16 AC_INIT([The Glorious Glasgow Haskell Compilation System], [7.1], [glasgow-haskell-bugs@haskell.org], [ghc])
17
18 # Set this to YES for a released version, otherwise NO
19 : ${RELEASE=NO}
20
21 # The primary version (e.g. 6.7, 6.6.1) is set in the AC_INIT line
22 # above.  If this is not a released version, then we will append the
23 # date to the version number (e.g. 6.7.20070204).  The date is
24 # constructed by finding the date of the most recent patch in the
25 # darcs repository.  If this is a source distribution (not a darcs
26 # checkout), then we ship a file 'VERSION' containing the full version
27 # when the source distribution was created.
28
29 if test ! -f mk/config.h.in; then
30    echo "mk/config.h.in doesn't exist: perhaps you haven't run 'perl boot'?"
31    exit 1
32 fi
33
34 AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args])
35
36 dnl ----------------------------------------------------------
37 dnl ** Find unixy sort and find commands, 
38 dnl ** which are needed by FP_SETUP_PROJECT_VERSION
39
40 dnl ** Find find command (for Win32's benefit)
41 FP_PROG_FIND
42
43 dnl ** Find sort command (for the benefit of Win32 environs)
44 FP_PROG_SORT
45
46 dnl ----------------------------------------------------------
47 FP_SETUP_PROJECT_VERSION
48
49 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
50 AC_SUBST([release], [1])
51
52 # First off, a distrib sanity check..
53 AC_CONFIG_SRCDIR([mk/config.mk.in])
54
55 dnl * We require autoconf version 2.52
56 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
57 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
58 AC_PREREQ([2.52])
59
60 # -------------------------------------------------------------------------
61 # Prepare to generate the following header files
62 #
63 #
64 AC_CONFIG_HEADER(mk/config.h)
65
66 # No, semi-sadly, we don't do `--srcdir'...
67 if test x"$srcdir" != 'x.' ; then
68     echo "This configuration does not support the \`--srcdir' option.."
69     exit 1
70 fi
71
72 dnl --------------------------------------------------------------
73 dnl * Project specific configuration options
74 dnl --------------------------------------------------------------
75 dnl What follows is a bunch of options that can either be configured
76 dnl through command line options to the configure script or by
77 dnl supplying defns in the build tree's mk/build.mk. Having the option to
78 dnl use either is considered a Feature.
79
80 dnl ** What command to use to compile compiler sources ?
81 dnl --------------------------------------------------------------
82
83 AC_ARG_WITH([ghc],
84 [AC_HELP_STRING([--with-ghc=ARG],
85   [Use ARG as the path to GHC  [default=autodetect]])],
86   [WithGhc="$withval"],
87   [if test "$GHC" = ""; then
88     AC_PATH_PROG([GHC], [ghc])
89   fi
90   WithGhc="$GHC"])
91
92 dnl ** Booting from .hc files?
93 dnl --------------------------------------------------------------
94 AC_ARG_ENABLE(hc-boot,
95 [AC_HELP_STRING([--enable-hc-boot],
96 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
97  (This option is mostly of interest to porters.) [default=no]])],
98 [ if test x"$enableval" = x"yes"; then
99         BootingFromHc=YES
100   else
101         BootingFromHc=NO
102   fi
103 ],
104 [BootingFromHc=NO]
105 )
106 AC_SUBST(BootingFromHc)
107
108 AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
109 [AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
110                 [Allow bootstrapping using a development snapshot of GHC.  This is not guaranteed to work.])],
111         EnableBootstrapWithDevelSnaphost=YES,
112         EnableBootstrapWithDevelSnaphost=NO
113 )
114
115 if test "$WithGhc" != ""; then
116   FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
117
118   if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
119      AC_MSG_ERROR([Cannot determine the version of $WithGhc.  Is it really GHC?])
120   fi
121
122   AC_SUBST(GhcVersion)dnl
123   AC_SUBST(GhcMajVersion)dnl
124   AC_SUBST(GhcMinVersion)dnl
125   AC_SUBST(GhcPatchLevel)dnl
126   GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
127   GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
128   FP_COMPARE_VERSIONS($GhcVersion,[-ge],[6.10.2],
129                       [ghc_ge_6102=YES], [ghc_ge_6102=NO])
130   if test $GhcCanonVersion -ge 611; then ghc_ge_611=YES; else ghc_ge_611=NO; fi
131   if test $GhcCanonVersion -ge 613; then ghc_ge_613=YES; else ghc_ge_613=NO; fi
132   AC_SUBST(ghc_ge_6102)dnl
133   AC_SUBST(ghc_ge_611)dnl
134   AC_SUBST(ghc_ge_613)dnl
135 fi
136
137 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
138 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
139   if test "$WithGhc" = ""; then
140      AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
141   fi
142   FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.10],
143     [AC_MSG_ERROR([GHC version 6.10 or later is required to compile GHC.])])dnl
144
145   if test `expr $GhcMinVersion % 2` = "1"; then
146      if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
147         AC_MSG_ERROR([
148      $WithGhc is a development snapshot of GHC, version $GhcVersion.
149      Bootstrapping using this version of GHC is not supported, and may not
150      work.  Use --enable-bootstrap-with-devel-snapshot to try it anyway,
151      or --with-ghc to specify a different GHC to use.])
152      fi
153   fi
154 fi;
155
156 # GHC is passed to Cabal, so we need a native path
157 if test "${WithGhc}" != ""
158 then
159     ghc_host=`"${WithGhc}" +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
160
161     if test "$ghc_host" = "i386-unknown-mingw32"
162     then
163         if test "${OSTYPE}" = "msys"
164         then
165             WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
166         else
167             # Canonicalise to <drive>:/path/to/ghc
168             WithGhc=`cygpath -m "${WithGhc}"`
169         fi
170         echo "GHC path canonicalised to: ${WithGhc}"
171     fi
172 fi
173 AC_SUBST([WithGhc])
174
175 dnl ** Without optimization some INLINE trickery fails for GHCi
176 SRC_CC_OPTS="-O"
177
178 dnl Allow to specify iconv options to the toplevel configure script
179 dnl so they can be properly passed to sub-builds.
180 dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined
181 dnl to the empty string to allow them to be overridden from the
182 dnl environment.
183
184 AC_ARG_WITH([iconv-includes],
185   [AC_HELP_STRING([--with-iconv-includes],
186     [directory containing iconv.h])],
187     [ICONV_INCLUDE_DIRS=$withval])
188
189 AC_ARG_WITH([iconv-libraries],
190   [AC_HELP_STRING([--with-iconv-libraries],
191     [directory containing iconv library])],
192     [ICONV_LIB_DIRS=$withval])
193
194 AC_SUBST(ICONV_INCLUDE_DIRS)
195 AC_SUBST(ICONV_LIB_DIRS)
196
197 dnl Allow to specify gmp options to the toplevel configure script
198 dnl so they can be properly passed to sub-builds.
199
200 AC_ARG_WITH([gmp-includes],
201   [AC_HELP_STRING([--with-gmp-includes],
202     [directory containing gmp.h])],
203     [GMP_INCLUDE_DIRS=$withval])
204
205 AC_ARG_WITH([gmp-libraries],
206   [AC_HELP_STRING([--with-gmp-libraries],
207     [directory containing gmp library])],
208     [GMP_LIB_DIRS=$withval])
209
210 AC_SUBST(GMP_INCLUDE_DIRS)
211 AC_SUBST(GMP_LIB_DIRS)
212
213 dnl--------------------------------------------------------------------
214 dnl * Choose host(/target/build) platform
215 dnl--------------------------------------------------------------------
216 dnl If we aren't explicitly told what values to use with configure flags,
217 dnl we ask the bootstrapping compiler what platform it is for
218
219 if test "${WithGhc}" != ""
220 then
221         bootstrap_host=`"${WithGhc}" +RTS --info | grep '^ ,("Host platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
222         bootstrap_target=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
223         if test "$bootstrap_host" != "$bootstrap_target"
224         then
225                 echo "Bootstrapping GHC is a cross compiler. This probably isn't going to work"
226         fi
227 fi
228
229 # We have to run these unconditionally, but we may discard their
230 # results in the following code
231 AC_CANONICAL_BUILD
232 AC_CANONICAL_HOST
233 AC_CANONICAL_TARGET
234
235 # If no argument was given for a configuration variable, then discard
236 # the guessed canonical system and use the configuration of the
237 # bootstrapping ghc. If an argument was given, map it from gnu format
238 # to ghc format.
239 #
240 # For why we do it this way, see: #3637, #1717, #2951
241
242 if test "$build_alias" = ""
243 then
244     if test "${WithGhc}" != ""
245     then
246         build=$bootstrap_target
247         echo "Build platform inferred as: $build"
248     else
249         echo "Can't work out build platform"
250         exit 1
251     fi
252
253     BuildArch=`echo "$build" | sed 's/-.*//'`
254     BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
255     BuildOS=`echo "$build" | sed 's/.*-//'`
256 else
257     GHC_CONVERT_CPU([$build_cpu], [BuildArch])
258     GHC_CONVERT_VENDOR([$build_vendor], [BuildVendor])
259     GHC_CONVERT_OS([$build_os], [BuildOS])
260 fi
261
262 if test "$host_alias" = ""
263 then
264     if test "${WithGhc}" != ""
265     then
266         host=$bootstrap_target
267         echo "Host platform inferred as: $host"
268     else
269         echo "Can't work out host platform"
270         exit 1
271     fi
272
273     HostArch=`echo "$host" | sed 's/-.*//'`
274     HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
275     HostOS=`echo "$host" | sed 's/.*-//'`
276 else
277     GHC_CONVERT_CPU([$host_cpu], [HostArch])
278     GHC_CONVERT_VENDOR([$host_vendor], [HostVendor])
279     GHC_CONVERT_OS([$host_os], [HostOS])
280 fi
281
282 if test "$target_alias" = ""
283 then
284     if test "${WithGhc}" != ""
285     then
286         target=$bootstrap_target
287         echo "Target platform inferred as: $target"
288     else
289         echo "Can't work out target platform"
290         exit 1
291     fi
292
293     TargetArch=`echo "$target" | sed 's/-.*//'`
294     TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
295     TargetOS=`echo "$target" | sed 's/.*-//'`
296 else
297     GHC_CONVERT_CPU([$target_cpu], [TargetArch])
298     GHC_CONVERT_VENDOR([$target_vendor], [TargetVendor])
299     GHC_CONVERT_OS([$target_os], [TargetOS])
300 fi
301
302 exeext=''
303 soext='.so'
304 case $host in
305 *-unknown-cygwin32)
306     AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
307     AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
308     exit 1
309     ;;
310 *-unknown-mingw32)
311     exeext='.exe'
312     soext='.dll'
313     ;;
314 i386-apple-darwin|powerpc-apple-darwin)
315     soext='.dylib'
316     ;;
317 x86_64-apple-darwin)
318     soext='.dylib'
319     ;;
320 esac
321
322 checkArch() {
323     case $1 in
324     alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
325         ;;
326     *)
327         echo "Unknown arch $1"
328         exit 1
329         ;;
330     esac
331 }
332
333 checkVendor() {
334     case $1 in
335     dec|unknown|hp|apple|next|sun|sgi|ibm)
336         ;;
337     *)
338         echo "Unknown vendor $1"
339         exit 1
340         ;;
341     esac
342 }
343
344 checkOS() {
345     case $1 in
346     linux|freebsd|netbsd|openbsd|dragonfly|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix|haiku)
347         ;;
348     *)
349         echo "Unknown OS '$1'"
350         exit 1
351         ;;
352     esac
353 }
354
355 BuildPlatform="$BuildArch-$BuildVendor-$BuildOS"
356 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
357 BuildArch_CPP=`    echo "$BuildArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
358 BuildVendor_CPP=`  echo "$BuildVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
359 BuildOS_CPP=`      echo "$BuildOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`
360
361 checkArch "$BuildArch"
362 checkVendor "$BuildVendor"
363 checkOS "$BuildOS"
364
365 HostPlatform="$HostArch-$HostVendor-$HostOS"
366 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
367 HostArch_CPP=`    echo "$HostArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
368 HostVendor_CPP=`  echo "$HostVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
369 HostOS_CPP=`      echo "$HostOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`
370
371 checkArch "$HostArch"
372 checkVendor "$HostVendor"
373 checkOS "$HostOS"
374
375 TargetPlatform="$TargetArch-$TargetVendor-$TargetOS"
376 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
377 TargetArch_CPP=`    echo "$TargetArch"     | sed -e 's/\./_/g' -e 's/-/_/g'`
378 TargetVendor_CPP=`  echo "$TargetVendor"   | sed -e 's/\./_/g' -e 's/-/_/g'`
379 TargetOS_CPP=`      echo "$TargetOS"       | sed -e 's/\./_/g' -e 's/-/_/g'`
380
381 checkArch "$TargetArch"
382 checkVendor "$TargetVendor"
383 checkOS "$TargetOS"
384
385 AC_SUBST(BuildPlatform)
386 AC_SUBST(HostPlatform)
387 AC_SUBST(TargetPlatform)
388 AC_SUBST(HostPlatform_CPP)
389 AC_SUBST(BuildPlatform_CPP)
390 AC_SUBST(TargetPlatform_CPP)
391
392 AC_SUBST(HostArch_CPP)
393 AC_SUBST(BuildArch_CPP)
394 AC_SUBST(TargetArch_CPP)
395
396 AC_SUBST(HostOS_CPP)
397 AC_SUBST(BuildOS_CPP)
398 AC_SUBST(TargetOS_CPP)
399
400 AC_SUBST(HostVendor_CPP)
401 AC_SUBST(BuildVendor_CPP)
402 AC_SUBST(TargetVendor_CPP)
403
404 AC_SUBST(exeext)
405 AC_SUBST(soext)
406
407 AC_ARG_WITH(hc,
408 [AC_HELP_STRING([--with-hc=ARG],
409         [Use ARG as the path to the compiler for compiling ordinary
410          Haskell code  (default= value of --with-ghc)])],
411 [WithHc="$withval"],
412 [WithHc=$WithGhc]
413 )
414 AC_SUBST(WithHc)
415
416 AC_PATH_PROGS(NHC,nhc nhc98)
417 AC_PATH_PROG(HBC,hbc)
418
419 # This uses GHC, so put it after the "GHC is required" check above:
420 FP_FIND_ROOT
421
422 if test "$HostOS" = "mingw32"
423 then
424     CC="$hardtop/inplace/mingw/bin/gcc.exe"
425     LD="$hardtop/inplace/mingw/bin/ld.exe"
426     NM="$hardtop/inplace/mingw/bin/nm.exe"
427     fp_prog_ar_raw="$hardtop/inplace/mingw/bin/ar.exe"
428     if ! test -d inplace/mingw ||
429          test inplace/mingw -ot ghc-tarballs/mingw/binutils*.tar.lzma  ||
430          test inplace/mingw -ot ghc-tarballs/mingw/gcc-core*.tar.lzma  ||
431          test inplace/mingw -ot ghc-tarballs/mingw/gcc-c++*.tar.lzma   ||
432          test inplace/mingw -ot ghc-tarballs/mingw/libgmp*.tar.gz      ||
433          test inplace/mingw -ot ghc-tarballs/mingw/libmpc*.tar.gz      ||
434          test inplace/mingw -ot ghc-tarballs/mingw/libmpfr*.tar.gz     ||
435          test inplace/mingw -ot ghc-tarballs/mingw/mingwrt*-dev.tar.gz ||
436          test inplace/mingw -ot ghc-tarballs/mingw/mingwrt*-dll.tar.gz ||
437          test inplace/mingw -ot ghc-tarballs/mingw/w32api*.tar.lzma
438     then
439         AC_MSG_NOTICE([Making in-tree mingw tree])
440         rm -rf inplace/mingw
441         mkdir inplace
442         mkdir inplace/mingw
443         (
444             cd inplace/mingw &&
445             tar --lzma -xf ../../ghc-tarballs/mingw/binutils*.tar.lzma  &&
446             tar --lzma -xf ../../ghc-tarballs/mingw/gcc-core*.tar.lzma  &&
447             tar --lzma -xf ../../ghc-tarballs/mingw/gcc-c++*.tar.lzma   &&
448             tar --lzma -xf ../../ghc-tarballs/mingw/libgmp*.tar.lzma    &&
449             tar --lzma -xf ../../ghc-tarballs/mingw/libmpc*.tar.lzma    &&
450             tar --lzma -xf ../../ghc-tarballs/mingw/libmpfr*.tar.lzma   &&
451             tar -z     -xf ../../ghc-tarballs/mingw/mingwrt*-dev.tar.gz &&
452             tar -z     -xf ../../ghc-tarballs/mingw/mingwrt*-dll.tar.gz &&
453             tar --lzma -xf ../../ghc-tarballs/mingw/w32api*.tar.lzma    &&
454             mv bin/gcc.exe bin/realgcc.exe
455         )
456         PATH=`pwd`/inplace/mingw/bin:$PATH inplace/mingw/bin/realgcc.exe driver/gcc/gcc.c driver/utils/cwrapper.c driver/utils/getLocation.c -Idriver/utils -o inplace/mingw/bin/gcc.exe
457         if ! test -e inplace/mingw/bin/gcc.exe
458         then
459             AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
460         fi
461         AC_MSG_NOTICE([In-tree mingw tree created])
462     fi
463     if ! test -d inplace/perl ||
464          test inplace/perl -ot ghc-tarballs/perl/ghc-perl*.tar.gz
465     then
466         AC_MSG_NOTICE([Making in-tree perl tree])
467         rm -rf inplace/perl
468         mkdir inplace
469         mkdir inplace/perl
470         (
471             cd inplace/perl &&
472             tar -zxf ../../ghc-tarballs/perl/ghc-perl*.tar.gz
473         )
474         AC_MSG_NOTICE([In-tree perl tree created])
475     fi
476 fi
477
478 dnl ** Which gcc to use?
479 dnl --------------------------------------------------------------
480 FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc])
481 export CC
482 WhatGccIsCalled="$CC"
483 AC_SUBST(WhatGccIsCalled)
484
485 dnl ** Which ld to use?
486 dnl --------------------------------------------------------------
487 FP_ARG_WITH_PATH_GNU_PROG([LD], [ld])
488 LdCmd="$LD"
489 AC_SUBST([LdCmd])
490
491 dnl ** Which nm to use?
492 dnl --------------------------------------------------------------
493 FP_ARG_WITH_PATH_GNU_PROG([NM], [nm])
494 NmCmd="$NM"
495 AC_SUBST([NmCmd])
496
497 dnl ** Mac OS X: explicit deployment target
498 dnl --------------------------------------------------------------
499 AC_ARG_WITH([macosx-deployment-target],
500 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
501         [Build for Mac OS VERSION and higher  (default= version of build host)])],
502 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
503  if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
504    # ignore everywhere, but on Mac OS
505    AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
506    FP_MACOSX_DEPLOYMENT_TARGET=none
507  fi],
508 [FP_MACOSX_DEPLOYMENT_TARGET=none]
509 )
510 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
511 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
512 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
513
514 dnl --------------------------------------------------------------
515 dnl End of configure script option section
516 dnl --------------------------------------------------------------
517
518
519 dnl --------------------------------------------------------------
520 dnl * General configuration checks
521 dnl --------------------------------------------------------------
522
523 dnl ** Can the unix package be built?
524 dnl --------------------------------------------------------------
525
526 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
527    GhcLibsWithUnix=NO
528 else
529    GhcLibsWithUnix=YES
530 fi
531 AC_SUBST([GhcLibsWithUnix])
532
533 dnl ** does #! work?
534 AC_SYS_INTERPRETER()
535
536 dnl ** look for `perl', but only in /bin on Windows
537 case $HostOS_CPP in
538 cygwin32|mingw32)
539       AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
540       if test -z "$PerlCmd"; then
541          echo "You must install the version of Perl shipped with GHC"
542          echo "(or a compatible one) in /bin."
543          exit 1
544       fi
545    ;;
546 *)
547    AC_PATH_PROG(PerlCmd,perl)
548    if test -z "$PerlCmd"; then
549       echo "You must install perl before you can continue"
550       echo "Perhaps it is already installed, but not in your PATH?"
551       exit 1
552    else
553    FPTOOLS_CHECK_PERL_VERSION
554    fi
555    ;;
556 esac
557
558 dnl ** does #! path/to/perl work? (sometimes it's too long...)
559 FPTOOLS_SHEBANG_PERL
560
561 dnl ** check for Python
562 AC_PATH_PROG(PythonCmd,python)
563
564 dnl ** look for GCC and find out which version
565 dnl     Figure out which C compiler to use.  Gcc is preferred.
566 dnl     If gcc, make sure it's at least 2.1
567 dnl
568 FP_HAVE_GCC
569
570 FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS])
571 FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_LD_OPTS_STAGE0])
572 FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_LD_OPTS_STAGE1])
573 # Stage 3 won't be supported by cross-compilation
574 FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_LD_OPTS_STAGE2])
575
576 FP_GCC_EXTRA_FLAGS
577
578 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
579 AC_PROG_CPP
580
581 AC_SUBST(CONF_CC_OPTS_STAGE0)
582 AC_SUBST(CONF_CC_OPTS_STAGE1)
583 AC_SUBST(CONF_CC_OPTS_STAGE2)
584 AC_SUBST(CONF_LD_OPTS_STAGE0)
585 AC_SUBST(CONF_LD_OPTS_STAGE1)
586 AC_SUBST(CONF_LD_OPTS_STAGE2)
587
588 dnl ** figure out how to do context diffs
589 FP_PROG_CONTEXT_DIFF
590
591 dnl Let's make sure install-sh is executable here.  If we got it from
592 dnl a darcs repo, it might not be (see bug #978).
593 chmod +x install-sh
594 dnl ** figure out how to do a BSD-ish install
595 AC_PROG_INSTALL
596
597 dnl If you can run configure, you certainly have /bin/sh
598 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
599
600 dnl ** how to invoke `ar' and `ranlib'
601 FP_PROG_AR_SUPPORTS_ATFILE
602 FP_PROG_AR_NEEDS_RANLIB
603 FP_PROG_AR_SUPPORTS_INPUT
604
605 dnl ** Check to see whether ln -s works
606 AC_PROG_LN_S
607
608
609 dnl ** Find the path to sed
610 AC_PATH_PROGS(SedCmd,gsed sed,sed)
611
612
613 dnl ** check for time command
614 AC_PATH_PROG(TimeCmd,time)
615
616 dnl ** check for tar
617 dnl   if GNU tar is named gtar, look for it first.
618 AC_PATH_PROGS(TarCmd,gnutar gtar tar,tar)
619
620 dnl ** check for patch
621 dnl if GNU patch is named gpatch, look for it first
622 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
623
624 dnl ** check for dtrace (currently only implemented for Mac OS X)
625 HaveDtrace=NO
626 AC_PATH_PROG(DtraceCmd,dtrace)
627 if test -n "$DtraceCmd"; then
628   if test "x$TargetOS_CPP-$TargetVendor_CPP" == "xdarwin-apple"; then
629     HaveDtrace=YES
630   fi
631 fi
632 AC_SUBST(HaveDtrace)
633
634 AC_PATH_PROG(HSCOLOUR,HsColour)
635 # HsColour is passed to Cabal, so we need a native path
636 if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
637    test "${OSTYPE}"      != "msys"                  && \
638    test "${HSCOLOUR}"    != ""
639 then
640     # Canonicalise to <drive>:/path/to/gcc
641     HSCOLOUR=`cygpath -m ${HSCOLOUR}`
642 fi
643
644 dnl ** check for DocBook toolchain
645 FP_CHECK_DOCBOOK_DTD
646 FP_DOCBOOK_XSL
647 FP_PROG_DBLATEX
648
649 FP_PROG_HSTAGS
650
651 dnl ** check for ghc-pkg command
652 FP_PROG_GHC_PKG
653
654 dnl ** check for installed happy binary + version
655 dnl    (don't do it if we're booting from .hc files though.)
656 if test "$BootingFromHc" = "NO"; then
657 FPTOOLS_HAPPY
658 fi;
659
660 dnl ** check for installed alex binary + version
661 dnl    (don't do it if we're booting from .hc files though.)
662 if test "$BootingFromHc" = "NO"; then
663 FPTOOLS_ALEX
664 fi;
665
666 dnl --------------------------------------------------
667 dnl ### program checking section ends here ###
668 dnl --------------------------------------------------
669
670 dnl --------------------------------------------------
671 dnl * Platform header file and syscall feature tests
672 dnl ### checking the state of the local header files and syscalls ###
673
674 dnl ** check for full ANSI header (.h) files
675 AC_HEADER_STDC
676
677 dnl ** Enable large file support.  NB. do this before testing the type of
678 dnl    off_t, because it will affect the result of that test.
679 AC_SYS_LARGEFILE
680
681 dnl ** check for specific header (.h) files that we are interested in
682 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/cpuset.h sys/mman.h sys/resource.h sys/select.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
683
684 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
685 AC_HEADER_TIME
686
687 dnl ** do we have long longs?
688 AC_CHECK_TYPES([long long])
689
690 dnl ** what are the sizes of various types
691 AC_CHECK_SIZEOF(char,               1)
692 AC_CHECK_SIZEOF(double,             8)
693 AC_CHECK_SIZEOF(float,              4)
694 AC_CHECK_SIZEOF(int,                4)
695 AC_CHECK_SIZEOF(long,               4)
696 if test "$ac_cv_type_long_long" = yes; then
697 AC_CHECK_SIZEOF(long long,          8)
698 fi
699 AC_CHECK_SIZEOF(short,              2)
700 AC_CHECK_SIZEOF(unsigned char,      1)
701 AC_CHECK_SIZEOF(unsigned int,       4)
702 AC_CHECK_SIZEOF(unsigned long,      4)
703 if test "$ac_cv_type_long_long" = yes; then
704 AC_CHECK_SIZEOF(unsigned long long, 8)
705 fi
706 AC_CHECK_SIZEOF(unsigned short,     2)
707 AC_CHECK_SIZEOF(void *,             4)
708
709 dnl ** what are alignment constraints on various types
710 FP_CHECK_ALIGNMENT(char)
711 FP_CHECK_ALIGNMENT(double)
712 FP_CHECK_ALIGNMENT(float)
713 FP_CHECK_ALIGNMENT(int)
714 FP_CHECK_ALIGNMENT(long)
715 if test "$ac_cv_type_long_long" = yes; then
716 FP_CHECK_ALIGNMENT(long long)
717 fi
718 FP_CHECK_ALIGNMENT(short)
719 FP_CHECK_ALIGNMENT(unsigned char)
720 FP_CHECK_ALIGNMENT(unsigned int)
721 FP_CHECK_ALIGNMENT(unsigned long)
722 if test "$ac_cv_type_long_long" = yes; then
723 FP_CHECK_ALIGNMENT(unsigned long long)
724 fi
725 FP_CHECK_ALIGNMENT(unsigned short)
726 FP_CHECK_ALIGNMENT(void *)
727
728 FP_CHECK_FUNC([WinExec],
729   [@%:@include <windows.h>], [WinExec("",0)])
730
731 FP_CHECK_FUNC([GetModuleFileName],
732   [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
733
734 dnl ** check return type of signal handlers
735 dnl Foo: assumes we can use prototypes.
736 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
737 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
738 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
739 dnl #include <signal.h>
740 dnl #ifdef signal
741 dnl #undef signal
742 dnl #endif
743 dnl void (*signal (int, void (*)(int)))(int);
744 dnl ]],
745 dnl [[int i;]])],
746 dnl [ac_cv_type_signal_handler=void_int],
747 dnl [ac_cv_type_signal_handler=int_void])])
748 dnl if test "$ac_cv_type_signal_handler" = void_int; then
749 dnl AC_DEFINE(VOID_INT_SIGNALS)
750 dnl fi
751
752 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
753 AC_TYPE_SIGNAL
754 if test "$ac_cv_type_signal" = void; then
755   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).])
756 fi
757
758 dnl ** check for more functions
759 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
760 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
761
762 AC_TRY_RUN([
763 #include <sys/types.h>
764 #include <sys/time.h>
765 int main(void) {
766   struct itimerval tval;
767   tval.it_value.tv_sec = 1;
768   tval.it_value.tv_usec = 0;
769   tval.it_interval = tval.it_value;
770   return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
771 }
772 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
773
774 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
775 dnl ** _POSIX_C_SOURCE is defined
776 AC_CHECK_DECLS([ctime_r], , ,
777 [#define _POSIX_SOURCE 1
778 #define _POSIX_C_SOURCE 199506L
779 #include <time.h>])
780
781 dnl ** check for mingwex library
782 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
783 AC_SUBST(HaveLibMingwEx)
784
785 if test $HaveLibMingwEx = YES ; then
786   AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
787 fi
788
789 dnl ** check for math library
790 dnl    Keep that check as early as possible.
791 dnl    as we need to know whether we need libm
792 dnl    for math functions or not
793 dnl    (see http://hackage.haskell.org/trac/ghc/ticket/3730)
794 AC_CHECK_LIB(m, atan, HaveLibM=YES, HaveLibM=NO)
795 if test $HaveLibM = YES
796 then
797   AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])
798 fi
799
800 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
801 dnl    the order of these tests matters: bfd needs liberty
802 AC_CHECK_LIB(iberty, xmalloc)
803 AC_CHECK_LIB(bfd,    bfd_init)
804
805 dnl ################################################################
806 dnl Check for libraries
807 dnl ################################################################
808
809 dnl ** check whether we need -ldl to get dlopen()
810
811 AC_CHECK_LIB(dl, dlopen,
812     [HaveLibDL=YES
813      AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
814      LIBS="$LIBS -ldl"],
815     [HaveLibDL=NO])
816 AC_SUBST(HaveLibDL)
817
818 dnl --------------------------------------------------
819 dnl * Miscellaneous feature tests
820 dnl --------------------------------------------------
821
822 dnl ** can we get alloca?
823 AC_FUNC_ALLOCA
824
825 dnl ** Working vfork?
826 AC_FUNC_FORK
827
828 dnl ** determine whether or not const works
829 AC_C_CONST
830
831 dnl ** are we big endian?
832 AC_C_BIGENDIAN
833 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
834
835 dnl ** check for leading underscores in symbol names
836 FP_LEADING_UNDERSCORE
837
838 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
839 FP_PROG_LD_X
840 FP_PROG_LD_IS_GNU
841
842 dnl ** check for Apple-style dead-stripping support
843 dnl    (.subsections-via-symbols assembler directive)
844
845
846 AC_MSG_CHECKING(for .subsections_via_symbols)
847 AC_COMPILE_IFELSE(
848     [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
849     [AC_MSG_RESULT(yes)
850      AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
851                [Define to 1 if Apple-style dead-stripping is supported.])
852     ],
853     [AC_MSG_RESULT(no)])
854
855 dnl *** check for GNU non-executable stack note support (ELF only)
856 dnl     (.section .note.GNU-stack,"",@progbits)
857
858 dnl This test doesn't work with "gcc -g" in gcc 4.4 (GHC trac #3889:
859 dnl     Error: can't resolve `.note.GNU-stack' {.note.GNU-stack section} - `.Ltext0' {.text section}
860 dnl so we empty CFLAGS while running this test
861 CFLAGS2="$CFLAGS"
862 CFLAGS=
863 AC_MSG_CHECKING(for GNU non-executable stack support)
864 AC_COMPILE_IFELSE(
865     [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
866     [AC_MSG_RESULT(yes)
867      AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
868                [Define to 1 if GNU non-executable stack notes are supported.])
869     ],
870     [AC_MSG_RESULT(no)])
871 CFLAGS="$CFLAGS2"
872
873 dnl ** check for librt
874 AC_CHECK_LIB(rt, clock_gettime)
875 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
876 FP_CHECK_TIMER_CREATE
877
878 dnl ** check for Apple's "interesting" long double compatibility scheme
879 AC_MSG_CHECKING(for printf\$LDBLStub)
880 AC_TRY_LINK_FUNC(printf\$LDBLStub,
881     [
882         AC_MSG_RESULT(yes)
883         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
884             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
885     ],
886     [
887         AC_MSG_RESULT(no)
888         AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
889             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
890     ])
891
892 dnl ** check for eventfd which is needed by the I/O manager
893 AC_CHECK_HEADERS([sys/eventfd.h])
894 AC_CHECK_FUNCS([eventfd])
895
896 # test for GTK+
897 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
898 if test -n "$GTK_CONFIG"; then
899   if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
900     GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
901   else
902     AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
903     GTK_CONFIG=
904   fi
905 fi
906 AC_SUBST([GTK_CONFIG])
907
908 #Checking for PAPI
909 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
910 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
911 AC_SUBST(HavePapiLib)
912 AC_SUBST(HavePapiHeader)
913
914 AC_CHECK_FUNCS(__mingw_vfprintf)
915
916 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
917    HavePapi=YES
918 else
919    HavePapi=NO
920 fi
921 AC_SUBST(HavePapi)
922
923 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
924    test "$XsltprocCmd" = ""
925 then
926     BUILD_DOCBOOK_HTML=NO
927 else
928     BUILD_DOCBOOK_HTML=YES
929 fi
930 AC_SUBST(BUILD_DOCBOOK_HTML)
931
932 if test "$DblatexCmd" = ""
933 then
934     BUILD_DOCBOOK_PS=NO
935     BUILD_DOCBOOK_PDF=NO
936 else
937     BUILD_DOCBOOK_PS=YES
938     BUILD_DOCBOOK_PDF=YES
939 fi
940 AC_SUBST(BUILD_DOCBOOK_PS)
941 AC_SUBST(BUILD_DOCBOOK_PDF)
942
943 LIBRARY_VERSION(base)
944 LIBRARY_VERSION(Cabal)
945 LIBRARY_VERSION(ghc-prim)
946 LIBRARY_ghc_VERSION="$ProjectVersion"
947 AC_SUBST(LIBRARY_ghc_VERSION)
948
949 if grep '       ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
950    AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
951 fi
952
953 AC_CONFIG_FILES([mk/config.mk mk/install.mk mk/project.mk compiler/ghc.cabal ghc/ghc-bin.cabal ghc.spec extra-gcc-opts docs/users_guide/ug-book.xml docs/users_guide/ug-ent.xml docs/index.html libraries/prologue.txt distrib/ghc.iss distrib/configure.ac])
954 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
955 AC_OUTPUT
956
957 # We get caught by
958 #     http://savannah.gnu.org/bugs/index.php?1516
959 #     $(eval ...) inside conditionals causes errors
960 # with make 3.80, so warn the user if it looks like they're about to
961 # try to use it.
962 # We would use "grep -q" here, but Solaris's grep doesn't support it.
963 checkMake380() {
964     if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
965     then
966         echo
967         echo "WARNING: It looks like \"$1\" is GNU make 3.80."
968         echo "This version cannot be used to build GHC."
969         echo "Please use GNU make >= 3.81."
970     fi
971 }
972
973 checkMake380 make
974 checkMake380 gmake
975
976 echo ["
977 ----------------------------------------------------------------------
978 Configure completed successfully.
979
980    Building GHC version  : $ProjectVersion
981
982    Build platform        : $BuildPlatform
983    Host platform         : $HostPlatform
984    Target platform       : $TargetPlatform
985 "]
986
987 if test "$BootingFromHc" = "YES"; then
988 echo ["\
989    Bootstrapping from HC files.
990 "]
991 else
992 echo ["\
993    Bootstrapping using   : $WithGhc
994       which is version   : $GhcVersion
995 "]
996 fi
997
998 echo ["\
999    Using GCC             : $WhatGccIsCalled
1000       which is version   : $GccVersion
1001
1002    ld       : $LdCmd
1003    Happy    : $HappyCmd ($HappyVersion)
1004    Alex     : $AlexCmd ($AlexVersion)
1005    Python   : $PythonCmd
1006    Perl     : $PerlCmd
1007    dblatex  : $DblatexCmd
1008    xsltproc : $XsltprocCmd"]
1009
1010 if test "$HSCOLOUR" = ""; then
1011 echo ["
1012    HsColour was not found; documentation will not contain source links
1013 "]
1014 else
1015 echo ["\
1016    HsColour : $HSCOLOUR
1017 "]
1018 fi
1019
1020 echo ["\
1021    Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
1022    Building DocBook PS documentation   : $BUILD_DOCBOOK_PS
1023    Building DocBook PDF documentation  : $BUILD_DOCBOOK_PDF"]
1024
1025 echo ["----------------------------------------------------------------------
1026 "]
1027
1028 echo "\
1029 For a standard build of GHC (fully optimised with profiling), type (g)make.
1030
1031 To make changes to the default build configuration, copy the file
1032 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
1033
1034 For more information on how to configure your GHC build, see
1035    http://hackage.haskell.org/trac/ghc/wiki/Building
1036 "