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)
6 # (c) The University of Glasgow 1994-2004
8 # Configure script template for GHC
10 # Process with 'autoreconf' to get a working configure script.
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
16 AC_INIT([The Glorious Glasgow Haskell Compilation System], [6.11], [glasgow-haskell-bugs@haskell.org], [ghc])
18 # Set this to YES for a released version, otherwise NO
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.
29 if test ! -f mk/config.h.in; then
30 echo "mk/config.h.in doesn't exist: perhaps you haven't run 'sh boot'?"
34 AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args])
36 FP_SETUP_PROJECT_VERSION
38 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
39 AC_SUBST([release], [1])
41 # First off, a distrib sanity check..
42 AC_CONFIG_SRCDIR([mk/config.mk.in])
44 dnl * We require autoconf version 2.52
45 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
46 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
49 # -------------------------------------------------------------------------
50 # Prepare to generate the following header files
53 AC_CONFIG_HEADER(mk/config.h)
55 # No, semi-sadly, we don't do `--srcdir'...
56 if test x"$srcdir" != 'x.' ; then
57 echo "This configuration does not support the \`--srcdir' option.."
61 dnl --------------------------------------------------------------
62 dnl * Project specific configuration options
63 dnl --------------------------------------------------------------
64 dnl What follows is a bunch of options that can either be configured
65 dnl through command line options to the configure script or by
66 dnl supplying defns in the build tree's mk/build.mk. Having the option to
67 dnl use either is considered a Feature.
69 dnl ** What command to use to compile compiler sources ?
70 dnl --------------------------------------------------------------
73 [AC_HELP_STRING([--with-ghc=ARG],
74 [Use ARG as the path to GHC [default=autodetect]])],
76 [if test "$GHC" = ""; then
77 AC_PATH_PROG([GHC], [ghc])
81 dnl ** Booting from unregisterised .hc files?
82 dnl --------------------------------------------------------------
83 AC_ARG_ENABLE(hc-boot-unregisterised,
84 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
85 [ With --enable-hc-boot, treat the intermediate .hc files as
86 unregisterised rather than registerised code.
87 (This option is mostly of interest to porters.) [default=no]])],
88 [ if test x"$enableval" = x"yes"; then
89 BootingFromUnregisterisedHc=YES
91 BootingFromUnregisterisedHc=NO
94 [BootingFromUnregisterisedHc=NO]
96 AC_SUBST(BootingFromUnregisterisedHc)
98 if test "$BootingFromHc" = "NO"; then
99 if test "$BootingFromUnregisterisedHc" = "YES"; then
100 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
104 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
105 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
106 if test "$WithGhc" = ""; then
107 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
109 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
110 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
112 if test `expr $GhcMinVersion % 2` = "1"; then
113 echo $EnableBootstrapWithDevelSnaphost
114 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
116 $WithGhc is a development snapshot of GHC, version $GhcVersion.
117 Bootstrapping using this version of GHC is not supported, and may not
118 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
119 or --with-ghc to specify a different GHC to use.])
124 AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
125 [AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
126 [Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
127 EnableBootstrapWithDevelSnaphost=YES,
128 EnableBootstrapWithDevelSnaphost=NO
131 if test "$WithGhc" != ""; then
132 FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
134 if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
135 AC_MSG_ERROR([Cannot determine the version of $WithGhc. Is it really GHC?])
138 AC_SUBST(GhcVersion)dnl
139 AC_SUBST(GhcMajVersion)dnl
140 AC_SUBST(GhcMinVersion)dnl
141 AC_SUBST(GhcPatchLevel)dnl
142 GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
143 GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
144 if test $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
145 AC_SUBST(ghc_ge_609)dnl
148 # GHC is passed to Cabal, so we need a native path
149 if test "${WithGhc}" != ""
151 ghc_host=`${WithGhc} +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
153 if test "$ghc_host" = "i386-unknown-mingw32"
155 if test "${OSTYPE}" = "msys"
157 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
159 # Canonicalise to <drive>:/path/to/ghc
160 WithGhc=`cygpath -m ${WithGhc}`
162 echo "GHC path canonicalised to: ${WithGhc}"
167 dnl--------------------------------------------------------------------
168 dnl * Choose host(/target/build) platform
169 dnl--------------------------------------------------------------------
170 dnl We don't use the standard autoconf macros for this, but instead
171 dnl ask the bootstrapping compiler what platform it is for
173 dnl Guess host/target/build platform(s) if necessary.
174 m4_divert_once([HELP_CANON],
177 --build=BUILD configure for building on BUILD [guessed]
178 --host=HOST cross-compile to build programs to run on HOST [guessed]
179 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
181 if test "$build" = ""
183 if test "${WithGhc}" != ""
185 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//'`
186 echo "Build platform inferred as: $build"
188 echo "Can't work out build platform"
195 if test "${WithGhc}" != ""
197 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//'`
198 echo "Host platform inferred as: $host"
200 echo "Can't work out host platform"
205 if test "$target" = ""
207 if test "${WithGhc}" != ""
209 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//'`
210 echo "Target platform inferred as: $target"
212 echo "Can't work out target platform"
221 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
222 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
229 i386-apple-darwin|powerpc-apple-darwin)
234 CFLAGS="$CFLAGS -m64"
235 LDFLAGS="$LDFLAGS -m64"
241 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
244 echo "Unknown arch $1"
252 dec|unknown|hp|apple|next|sun|sgi|ibm)
255 echo "Unknown vendor $1"
263 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
273 BuildArch=`echo "$build" | sed 's/-.*//'`
274 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
275 BuildOS=`echo "$build" | sed 's/.*-//'`
276 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
277 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
278 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
279 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
281 checkArch "$BuildArch"
282 checkVendor "$BuildVendor"
286 HostArch=`echo "$host" | sed 's/-.*//'`
287 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
288 HostOS=`echo "$host" | sed 's/.*-//'`
289 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
290 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
291 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
292 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
294 checkArch "$HostArch"
295 checkVendor "$HostVendor"
298 TargetPlatform=$target
299 TargetArch=`echo "$target" | sed 's/-.*//'`
300 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
301 TargetOS=`echo "$target" | sed 's/.*-//'`
302 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
303 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
304 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
305 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
307 checkArch "$TargetArch"
308 checkVendor "$TargetVendor"
311 AC_SUBST(BuildPlatform)
312 AC_SUBST(HostPlatform)
313 AC_SUBST(TargetPlatform)
314 AC_SUBST(HostPlatform_CPP)
315 AC_SUBST(BuildPlatform_CPP)
316 AC_SUBST(TargetPlatform_CPP)
318 AC_SUBST(HostArch_CPP)
319 AC_SUBST(BuildArch_CPP)
320 AC_SUBST(TargetArch_CPP)
323 AC_SUBST(BuildOS_CPP)
324 AC_SUBST(TargetOS_CPP)
326 AC_SUBST(HostVendor_CPP)
327 AC_SUBST(BuildVendor_CPP)
328 AC_SUBST(TargetVendor_CPP)
334 [AC_HELP_STRING([--with-hc=ARG],
335 [Use ARG as the path to the compiler for compiling ordinary
336 Haskell code (default= value of --with-ghc)])],
342 AC_PATH_PROGS(NHC,nhc nhc98)
343 AC_PATH_PROG(HBC,hbc)
345 dnl ** Which gcc to use?
346 dnl --------------------------------------------------------------
348 [AC_HELP_STRING([--with-gcc=ARG],
349 [Use ARG as the path to GCC [default=autodetect]])],
350 [WhatGccIsCalled="$withval"
351 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
352 test "${OSTYPE}" != "msys" && \
353 test "${withval}" != ""
355 # Canonicalise to <drive>:/path/to/gcc
356 withval=`cygpath -m ${withval}`
361 [WhatGccIsCalled="gcc"]
363 AC_SUBST(WhatGccIsCalled)
365 dnl ** Which ld to use?
366 dnl --------------------------------------------------------------
368 [AC_HELP_STRING([--with-ld=ARG],
369 [Use ARG as the path to LD [default=autodetect]])],
370 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
371 test "${OSTYPE}" != "msys" && \
372 test "${withval}" != ""
374 # Canonicalise to <drive>:/path/to/ld
375 withval=`cygpath -m ${withval}`
383 dnl ** Build shared and/or static libs?
384 dnl --------------------------------------------------------------
385 AC_ARG_ENABLE(shared,
386 [AC_HELP_STRING([--enable-shared],
387 [Build shared libraries, if available (EXPERIMENTAL, non-working). [default=no]])],
388 [ if test x"$enableval" = x"yes"; then
389 AC_MSG_WARN([--enable-shared is experimental and not fully supported at this time])
397 AC_SUBST(BuildSharedLibs)
400 # AC_ARG_ENABLE(static,
401 # [AC_HELP_STRING([--enable-static],
402 # [Build static libraries. [default=yes]])],
403 # [ if test x"$enableval" = x"yes"; then
404 # BuildStaticLibs=YES
409 # [BuildStaticLibs=YES]
411 # AC_SUBST(BuildStaticLibs)
413 dnl ** Booting from .hc files?
414 dnl --------------------------------------------------------------
415 AC_ARG_ENABLE(hc-boot,
416 [AC_HELP_STRING([--enable-hc-boot],
417 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
418 (This option is mostly of interest to porters.) [default=no]])],
419 [ if test x"$enableval" = x"yes"; then
427 AC_SUBST(BootingFromHc)
429 # This uses GHC, so put it after the "GHC is required" check above:
432 dnl ** Enable the construction of Win32 DLLs?
433 dnl --------------------------------------------------------------
435 dnl [ The ability to build the RTS and libraries as separate DLLs used
436 dnl to be supported, but isn't currently (updates to the RTS, compiler
437 dnl and build system would be required to bring it back again.)
438 dnl Hence, exposing it as an option is false advertisement, so better
439 dnl disable it to avoid confusion (but leave it commented-out rather
440 dnl than removed in order to remind ourselves to bring back the
441 dnl feature at some stage.) ]
443 dnl AC_ARG_ENABLE(win32-dlls,
444 dnl [ --enable-win32-dlls
445 dnl If on a Win32 platform running mingw32/cygwin, enable the
446 dnl construction of DLLs containing ghc-compiled code.
449 dnl case $HostOS_CPP in
452 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
456 dnl EnableWin32DLLs=YES
458 dnl [EnableWin32DLLs=NO]
460 dnl AC_SUBST(EnableWin32DLLs)
461 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
462 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
465 dnl ** Mac OS X: explicit deployment target
466 dnl --------------------------------------------------------------
467 AC_ARG_WITH([macosx-deployment-target],
468 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
469 [Build for Mac OS VERSION and higher (default= version of build host)])],
470 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
471 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
472 # ignore everywhere, but on Mac OS
473 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
474 FP_MACOSX_DEPLOYMENT_TARGET=none
476 [FP_MACOSX_DEPLOYMENT_TARGET=none]
478 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
479 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
480 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
482 dnl --------------------------------------------------------------
483 dnl End of configure script option section
484 dnl --------------------------------------------------------------
487 dnl --------------------------------------------------------------
488 dnl * General configuration checks
489 dnl --------------------------------------------------------------
491 dnl ** Can the unix package be built?
492 dnl --------------------------------------------------------------
494 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
499 AC_SUBST([GhcLibsWithUnix])
504 dnl ** look for `perl', but only in /bin on Windows
507 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
508 if test -z "$PerlCmd"; then
509 echo "You must install the version of Perl shipped with GHC"
510 echo "(or a compatible one) in /bin."
515 AC_PATH_PROG(PerlCmd,perl)
516 if test -z "$PerlCmd"; then
517 echo "You must install perl before you can continue"
518 echo "Perhaps it is already installed, but not in your PATH?"
521 FPTOOLS_CHECK_PERL_VERSION
526 dnl ** does #! path/to/perl work? (sometimes it's too long...)
529 dnl ** check for Python
530 AC_PATH_PROG(PythonCmd,python)
532 dnl ** look for GCC and find out which version
533 dnl Figure out which C compiler to use. Gcc is preferred.
534 dnl If gcc, make sure it's at least 2.1
540 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
543 dnl ** Without optimization some INLINE trickery fails for GHCi
546 SRC_CC_OPTS="$SRC_CC_OPTS $CFLAGS"
547 SRC_LD_OPTS="$SRC_LD_OPTS $LDFLAGS"
549 AC_SUBST(SRC_CC_OPTS)
550 AC_SUBST(SRC_LD_OPTS)
552 dnl ** figure out how to do context diffs
555 dnl ** Find find command (for Win32's benefit)
558 dnl ** Find sort command (for the benefit of Win32 environs)
561 dnl Let's make sure install-sh is executable here. If we got it from
562 dnl a darcs repo, it might not be (see bug #978).
564 dnl ** figure out how to do a BSD-ish install
567 dnl If you can run configure, you certainly have /bin/sh
568 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
570 dnl ** how to invoke `ar' and `ranlib'
571 FP_PROG_AR_NEEDS_RANLIB
572 FP_PROG_AR_SUPPORTS_INPUT
574 dnl ** Check to see whether ln -s works
578 dnl ** Find the path to sed
579 AC_PATH_PROG(SedCmd,sed)
582 dnl ** check for time command
583 AC_PATH_PROG(TimeCmd,time)
586 dnl if GNU tar is named gtar, look for it first.
587 AC_PATH_PROGS(TarCmd,gtar tar,tar)
589 dnl ** check for patch
590 dnl if GNU patch is named gpatch, look for it first
591 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
593 AC_PATH_PROG(HSCOLOUR,HsColour)
594 # HsColour is passed to Cabal, so we need a native path
595 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
596 test "${OSTYPE}" != "msys" && \
597 test "${HSCOLOUR}" != ""
599 # Canonicalise to <drive>:/path/to/gcc
600 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
603 dnl ** check for DocBook toolchain
610 dnl ** check for ghc-pkg command
613 dnl ** check for installed happy binary + version
614 dnl (don't do it if we're booting from .hc files though.)
615 if test "$BootingFromHc" = "NO"; then
619 dnl ** check for installed alex binary + version
620 dnl (don't do it if we're booting from .hc files though.)
621 if test "$BootingFromHc" = "NO"; then
625 dnl Check we have an acceptable version of windres
628 dnl --------------------------------------------------
629 dnl ### program checking section ends here ###
630 dnl --------------------------------------------------
632 dnl --------------------------------------------------
633 dnl * Platform header file and syscall feature tests
634 dnl ### checking the state of the local header files and syscalls ###
636 dnl ** check for full ANSI header (.h) files
639 dnl ** Enable large file support. NB. do this before testing the type of
640 dnl off_t, because it will affect the result of that test.
643 dnl ** check for specific header (.h) files that we are interested in
644 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
646 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
649 dnl ** do we have long longs?
650 AC_CHECK_TYPES([long long])
652 dnl ** what are the sizes of various types
653 AC_CHECK_SIZEOF(char, 1)
654 AC_CHECK_SIZEOF(double, 8)
655 AC_CHECK_SIZEOF(float, 4)
656 AC_CHECK_SIZEOF(int, 4)
657 AC_CHECK_SIZEOF(long, 4)
658 if test "$ac_cv_type_long_long" = yes; then
659 AC_CHECK_SIZEOF(long long, 8)
661 AC_CHECK_SIZEOF(short, 2)
662 AC_CHECK_SIZEOF(unsigned char, 1)
663 AC_CHECK_SIZEOF(unsigned int, 4)
664 AC_CHECK_SIZEOF(unsigned long, 4)
665 if test "$ac_cv_type_long_long" = yes; then
666 AC_CHECK_SIZEOF(unsigned long long, 8)
668 AC_CHECK_SIZEOF(unsigned short, 2)
669 AC_CHECK_SIZEOF(void *, 4)
671 dnl ** what are alignment constraints on various types
672 FP_CHECK_ALIGNMENT(char)
673 FP_CHECK_ALIGNMENT(double)
674 FP_CHECK_ALIGNMENT(float)
675 FP_CHECK_ALIGNMENT(int)
676 FP_CHECK_ALIGNMENT(long)
677 if test "$ac_cv_type_long_long" = yes; then
678 FP_CHECK_ALIGNMENT(long long)
680 FP_CHECK_ALIGNMENT(short)
681 FP_CHECK_ALIGNMENT(unsigned char)
682 FP_CHECK_ALIGNMENT(unsigned int)
683 FP_CHECK_ALIGNMENT(unsigned long)
684 if test "$ac_cv_type_long_long" = yes; then
685 FP_CHECK_ALIGNMENT(unsigned long long)
687 FP_CHECK_ALIGNMENT(unsigned short)
688 FP_CHECK_ALIGNMENT(void *)
690 FP_CHECK_FUNC([WinExec],
691 [@%:@include <windows.h>], [WinExec("",0)])
693 FP_CHECK_FUNC([GetModuleFileName],
694 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
696 dnl ** check return type of signal handlers
697 dnl Foo: assumes we can use prototypes.
698 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
699 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
700 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
701 dnl #include <signal.h>
705 dnl void (*signal (int, void (*)(int)))(int);
708 dnl [ac_cv_type_signal_handler=void_int],
709 dnl [ac_cv_type_signal_handler=int_void])])
710 dnl if test "$ac_cv_type_signal_handler" = void_int; then
711 dnl AC_DEFINE(VOID_INT_SIGNALS)
714 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
716 if test "$ac_cv_type_signal" = void; then
717 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).])
720 dnl ** check for more functions
721 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
722 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
725 #include <sys/types.h>
726 #include <sys/time.h>
728 struct itimerval tval;
729 tval.it_value.tv_sec = 1;
730 tval.it_value.tv_usec = 0;
731 tval.it_interval = tval.it_value;
732 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
734 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
736 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
737 dnl ** _POSIX_C_SOURCE is defined
738 AC_CHECK_DECLS([ctime_r], , ,
739 [#define _POSIX_SOURCE 1
740 #define _POSIX_C_SOURCE 199506L
743 dnl ** check for mingwex library
744 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
745 AC_SUBST(HaveLibMingwEx)
747 if test $HaveLibMingwEx = YES ; then
748 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
751 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
752 dnl the order of these tests matters: bfd needs liberty
753 AC_CHECK_LIB(iberty, xmalloc)
754 AC_CHECK_LIB(bfd, bfd_init)
756 dnl ** check for math library
757 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
758 if test x"$fp_libm_not_needed" = xdunno; then
759 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
763 dnl ################################################################
764 dnl Check for libraries
765 dnl ################################################################
767 dnl ** check whether we need -ldl to get dlopen()
769 AC_CHECK_LIB(dl, dlopen,
771 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
776 dnl --------------------------------------------------
777 dnl * Miscellaneous feature tests
778 dnl --------------------------------------------------
780 dnl ** can we get alloca?
783 dnl ** Working vfork?
786 dnl ** determine whether or not const works
789 dnl ** are we big endian?
791 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
793 dnl ** check for leading underscores in symbol names
794 FP_LEADING_UNDERSCORE
796 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
800 dnl ** check for Apple-style dead-stripping support
801 dnl (.subsections-via-symbols assembler directive)
804 AC_MSG_CHECKING(for .subsections_via_symbols)
806 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
808 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
809 [Define to 1 if Apple-style dead-stripping is supported.])
813 dnl *** check for GNU non-executable stack note support (ELF only)
814 dnl (.section .note.GNU-stack,"",@progbits)
816 AC_MSG_CHECKING(for GNU non-executable stack support)
818 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
820 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
821 [Define to 1 if GNU non-executable stack notes are supported.])
825 dnl ** check for librt
826 AC_CHECK_LIB(rt, clock_gettime)
827 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
828 FP_CHECK_TIMER_CREATE
830 dnl ** check for Apple's "interesting" long double compatibility scheme
831 AC_MSG_CHECKING(for printf\$LDBLStub)
832 AC_TRY_LINK_FUNC(printf\$LDBLStub,
835 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
836 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
840 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
841 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
845 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
846 if test -n "$GTK_CONFIG"; then
847 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
848 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
850 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
854 AC_SUBST([GTK_CONFIG])
857 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
858 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
859 AC_SUBST(HavePapiLib)
860 AC_SUBST(HavePapiHeader)
862 AC_CHECK_FUNCS(__mingw_vfprintf)
864 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
871 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
872 test "$XsltprocCmd" = ""
874 BUILD_DOCBOOK_HTML=NO
876 BUILD_DOCBOOK_HTML=YES
878 AC_SUBST(BUILD_DOCBOOK_HTML)
880 if test "$DblatexCmd" = ""
886 BUILD_DOCBOOK_PDF=YES
888 AC_SUBST(BUILD_DOCBOOK_PS)
889 AC_SUBST(BUILD_DOCBOOK_PDF)
891 AC_CONFIG_FILES([mk/config.mk mk/project.mk compiler/ghc.cabal ghc/ghc-bin.cabal ghc.spec extra-gcc-opts docs/users_guide/ug-book.xml distrib/ghc.iss])
892 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
896 # http://savannah.gnu.org/bugs/index.php?1516
897 # $(eval ...) inside conditionals causes errors
898 # with make 3.80, so warn the user if it looks like they're about to
900 # We would use "grep -q" here, but Solaris's grep doesn't support it.
902 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
905 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
906 echo "This version cannot be used to build GHC."
907 echo "Please use GNU make >= 3.81."
915 ----------------------------------------------------------------------
916 Configure completed successfully.
918 Building GHC version : $ProjectVersion
920 Build platform : $BuildPlatform
921 Host platform : $HostPlatform
922 Target platform : $TargetPlatform
925 if test "$BootingFromHc" = "YES"; then
927 Bootstrapping from HC files.
931 Bootstrapping using : $WithGhc
932 which is version : $GhcVersion
937 Using GCC : $WhatGccIsCalled
938 which is version : $GccVersion
941 Happy : $HappyCmd ($HappyVersion)
942 Alex : $AlexCmd ($AlexVersion)
945 dblatex : $DblatexCmd
946 xsltproc : $XsltprocCmd"]
948 if test "$HSCOLOUR" = ""; then
950 HsColour was not found; documentation will not contain source links
959 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
960 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
961 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF
963 Building shared libraries : $BuildSharedLibs"]
965 echo ["----------------------------------------------------------------------
969 For a standard build of GHC (fully optimised with profiling), type (g)make.
971 To make changes to the default build configuration, copy the file
972 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
974 For more information on how to configure your GHC build, see
975 http://hackage.haskell.org/trac/ghc/wiki/Building