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], [6.13], [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], [$ac_configure_args])
36 dnl ----------------------------------------------------------
37 dnl ** Find unixy sort and find commands,
38 dnl ** which are needed by FP_SETUP_PROJECT_VERSION
40 dnl ** Find find command (for Win32's benefit)
43 dnl ** Find sort command (for the benefit of Win32 environs)
46 dnl ----------------------------------------------------------
47 FP_SETUP_PROJECT_VERSION
49 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
50 AC_SUBST([release], [1])
52 # First off, a distrib sanity check..
53 AC_CONFIG_SRCDIR([mk/config.mk.in])
55 dnl * We require autoconf version 2.52
56 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
57 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
60 # -------------------------------------------------------------------------
61 # Prepare to generate the following header files
64 AC_CONFIG_HEADER(mk/config.h)
66 # No, semi-sadly, we don't do `--srcdir'...
67 if test x"$srcdir" != 'x.' ; then
68 echo "This configuration does not support the \`--srcdir' option.."
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.
80 dnl ** What command to use to compile compiler sources ?
81 dnl --------------------------------------------------------------
84 [AC_HELP_STRING([--with-ghc=ARG],
85 [Use ARG as the path to GHC [default=autodetect]])],
87 [if test "$GHC" = ""; then
88 AC_PATH_PROG([GHC], [ghc])
92 dnl ** Booting from .hc files?
93 dnl --------------------------------------------------------------
94 AC_ARG_ENABLE(hc-boot,
95 [AC_HELP_STRING([--enable-hc-boot],
96 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
97 (This option is mostly of interest to porters.) [default=no]])],
98 [ if test x"$enableval" = x"yes"; then
106 AC_SUBST(BootingFromHc)
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
115 if test "$WithGhc" != ""; then
116 FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
118 if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
119 AC_MSG_ERROR([Cannot determine the version of $WithGhc. Is it really GHC?])
122 AC_SUBST(GhcVersion)dnl
123 AC_SUBST(GhcMajVersion)dnl
124 AC_SUBST(GhcMinVersion)dnl
125 AC_SUBST(GhcPatchLevel)dnl
126 GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
127 GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
128 if test $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
129 FP_COMPARE_VERSIONS($GhcVersion,[-ge],[6.10.2],
130 [ghc_ge_6102=YES], [ghc_ge_6102=NO])
131 if test $GhcCanonVersion -ge 611; then ghc_ge_611=YES; else ghc_ge_611=NO; fi
132 AC_SUBST(ghc_ge_609)dnl
133 AC_SUBST(ghc_ge_6102)dnl
134 AC_SUBST(ghc_ge_611)dnl
137 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
138 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
139 if test "$WithGhc" = ""; then
140 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
142 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
143 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
145 if test `expr $GhcMinVersion % 2` = "1"; then
146 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
148 $WithGhc is a development snapshot of GHC, version $GhcVersion.
149 Bootstrapping using this version of GHC is not supported, and may not
150 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
151 or --with-ghc to specify a different GHC to use.])
156 # GHC is passed to Cabal, so we need a native path
157 if test "${WithGhc}" != ""
159 ghc_host=`${WithGhc} +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
161 if test "$ghc_host" = "i386-unknown-mingw32"
163 if test "${OSTYPE}" = "msys"
165 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
167 # Canonicalise to <drive>:/path/to/ghc
168 WithGhc=`cygpath -m ${WithGhc}`
170 echo "GHC path canonicalised to: ${WithGhc}"
175 dnl ** Without optimization some INLINE trickery fails for GHCi
178 dnl Allow to specify iconv options to the toplevel configure script
179 dnl so they can be properly passed to sub-builds.
180 dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined
181 dnl to the empty string to allow them to be overridden from the
184 AC_ARG_WITH([iconv-includes],
185 [AC_HELP_STRING([--with-iconv-includes],
186 [directory containing iconv.h])],
187 [ICONV_INCLUDE_DIRS=$withval])
189 AC_ARG_WITH([iconv-libraries],
190 [AC_HELP_STRING([--with-iconv-libraries],
191 [directory containing iconv library])],
192 [ICONV_LIB_DIRS=$withval])
194 AC_SUBST(ICONV_INCLUDE_DIRS)
195 AC_SUBST(ICONV_LIB_DIRS)
197 dnl--------------------------------------------------------------------
198 dnl * Choose host(/target/build) platform
199 dnl--------------------------------------------------------------------
200 dnl We don't use the standard autoconf macros for this, but instead
201 dnl ask the bootstrapping compiler what platform it is for
203 dnl Guess host/target/build platform(s) if necessary.
204 m4_divert_once([HELP_CANON],
207 --build=BUILD configure for building on BUILD [guessed]
208 --host=HOST cross-compile to build programs to run on HOST [guessed]
209 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
211 if test "$build" = ""
213 if test "${WithGhc}" != ""
215 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
216 echo "Build platform inferred as: $build"
218 echo "Can't work out build platform"
225 if test "${WithGhc}" != ""
227 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
228 echo "Host platform inferred as: $host"
230 echo "Can't work out host platform"
235 if test "$target" = ""
237 if test "${WithGhc}" != ""
239 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
240 echo "Target platform inferred as: $target"
242 echo "Can't work out target platform"
251 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
252 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
259 i386-apple-darwin|powerpc-apple-darwin)
261 CFLAGS="$CFLAGS -m32"
262 LDFLAGS="$LDFLAGS -m32"
263 CONF_CC_OPTS="$CONF_CC_OPTS -m32"
264 CONF_LD_OPTS="$CONF_LD_OPTS -m32"
268 CFLAGS="$CFLAGS -m64"
269 LDFLAGS="$LDFLAGS -m64"
270 CONF_CC_OPTS="$CONF_CC_OPTS -m64"
271 CONF_LD_OPTS="$CONF_LD_OPTS -m64"
277 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
280 echo "Unknown arch $1"
288 dec|unknown|hp|apple|next|sun|sgi|ibm)
291 echo "Unknown vendor $1"
299 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
302 echo "Unknown OS '$1'"
309 BuildArch=`echo "$build" | sed 's/-.*//'`
310 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
311 BuildOS=`echo "$build" | sed 's/.*-//'`
312 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
313 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
314 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
315 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
317 checkArch "$BuildArch"
318 checkVendor "$BuildVendor"
322 HostArch=`echo "$host" | sed 's/-.*//'`
323 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
324 HostOS=`echo "$host" | sed 's/.*-//'`
325 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
326 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
327 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
328 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
330 checkArch "$HostArch"
331 checkVendor "$HostVendor"
334 TargetPlatform=$target
335 TargetArch=`echo "$target" | sed 's/-.*//'`
336 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
337 TargetOS=`echo "$target" | sed 's/.*-//'`
338 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
339 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
340 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
341 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
343 checkArch "$TargetArch"
344 checkVendor "$TargetVendor"
347 AC_SUBST(BuildPlatform)
348 AC_SUBST(HostPlatform)
349 AC_SUBST(TargetPlatform)
350 AC_SUBST(HostPlatform_CPP)
351 AC_SUBST(BuildPlatform_CPP)
352 AC_SUBST(TargetPlatform_CPP)
354 AC_SUBST(HostArch_CPP)
355 AC_SUBST(BuildArch_CPP)
356 AC_SUBST(TargetArch_CPP)
359 AC_SUBST(BuildOS_CPP)
360 AC_SUBST(TargetOS_CPP)
362 AC_SUBST(HostVendor_CPP)
363 AC_SUBST(BuildVendor_CPP)
364 AC_SUBST(TargetVendor_CPP)
370 [AC_HELP_STRING([--with-hc=ARG],
371 [Use ARG as the path to the compiler for compiling ordinary
372 Haskell code (default= value of --with-ghc)])],
378 AC_PATH_PROGS(NHC,nhc nhc98)
379 AC_PATH_PROG(HBC,hbc)
381 dnl ** Which gcc to use?
382 dnl --------------------------------------------------------------
384 [AC_HELP_STRING([--with-gcc=ARG],
385 [Use ARG as the path to GCC [default=autodetect]])],
386 [WhatGccIsCalled="$withval"
387 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
388 test "${OSTYPE}" != "msys" && \
389 test "${withval}" != ""
391 # Canonicalise to <drive>:/path/to/gcc
392 withval=`cygpath -m ${withval}`
397 [WhatGccIsCalled="gcc"]
399 AC_SUBST(WhatGccIsCalled)
401 dnl ** Which ld to use?
402 dnl --------------------------------------------------------------
404 [AC_HELP_STRING([--with-ld=ARG],
405 [Use ARG as the path to LD [default=autodetect]])],
406 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
407 test "${OSTYPE}" != "msys" && \
408 test "${withval}" != ""
410 # Canonicalise to <drive>:/path/to/ld
411 withval=`cygpath -m ${withval}`
419 # This uses GHC, so put it after the "GHC is required" check above:
422 dnl ** Enable the construction of Win32 DLLs?
423 dnl --------------------------------------------------------------
425 dnl [ The ability to build the RTS and libraries as separate DLLs used
426 dnl to be supported, but isn't currently (updates to the RTS, compiler
427 dnl and build system would be required to bring it back again.)
428 dnl Hence, exposing it as an option is false advertisement, so better
429 dnl disable it to avoid confusion (but leave it commented-out rather
430 dnl than removed in order to remind ourselves to bring back the
431 dnl feature at some stage.) ]
433 dnl AC_ARG_ENABLE(win32-dlls,
434 dnl [ --enable-win32-dlls
435 dnl If on a Win32 platform running mingw32/cygwin, enable the
436 dnl construction of DLLs containing ghc-compiled code.
439 dnl case $HostOS_CPP in
442 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
446 dnl EnableWin32DLLs=YES
448 dnl [EnableWin32DLLs=NO]
450 dnl AC_SUBST(EnableWin32DLLs)
451 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
452 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
455 dnl ** Mac OS X: explicit deployment target
456 dnl --------------------------------------------------------------
457 AC_ARG_WITH([macosx-deployment-target],
458 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
459 [Build for Mac OS VERSION and higher (default= version of build host)])],
460 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
461 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
462 # ignore everywhere, but on Mac OS
463 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
464 FP_MACOSX_DEPLOYMENT_TARGET=none
466 [FP_MACOSX_DEPLOYMENT_TARGET=none]
468 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
469 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
470 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
472 dnl --------------------------------------------------------------
473 dnl End of configure script option section
474 dnl --------------------------------------------------------------
477 dnl --------------------------------------------------------------
478 dnl * General configuration checks
479 dnl --------------------------------------------------------------
481 dnl ** Can the unix package be built?
482 dnl --------------------------------------------------------------
484 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
489 AC_SUBST([GhcLibsWithUnix])
494 dnl ** look for `perl', but only in /bin on Windows
497 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
498 if test -z "$PerlCmd"; then
499 echo "You must install the version of Perl shipped with GHC"
500 echo "(or a compatible one) in /bin."
505 AC_PATH_PROG(PerlCmd,perl)
506 if test -z "$PerlCmd"; then
507 echo "You must install perl before you can continue"
508 echo "Perhaps it is already installed, but not in your PATH?"
511 FPTOOLS_CHECK_PERL_VERSION
516 dnl ** does #! path/to/perl work? (sometimes it's too long...)
519 dnl ** check for Python
520 AC_PATH_PROG(PythonCmd,python)
522 dnl ** look for GCC and find out which version
523 dnl Figure out which C compiler to use. Gcc is preferred.
524 dnl If gcc, make sure it's at least 2.1
530 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
533 AC_SUBST(CONF_CC_OPTS)
534 AC_SUBST(CONF_LD_OPTS)
536 dnl ** figure out how to do context diffs
539 dnl Let's make sure install-sh is executable here. If we got it from
540 dnl a darcs repo, it might not be (see bug #978).
542 dnl ** figure out how to do a BSD-ish install
545 dnl If you can run configure, you certainly have /bin/sh
546 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
548 dnl ** how to invoke `ar' and `ranlib'
549 FP_PROG_AR_NEEDS_RANLIB
550 FP_PROG_AR_SUPPORTS_INPUT
552 dnl ** Check to see whether ln -s works
556 dnl ** Find the path to sed
557 AC_PATH_PROG(SedCmd,sed)
560 dnl ** check for time command
561 AC_PATH_PROG(TimeCmd,time)
564 dnl if GNU tar is named gtar, look for it first.
565 AC_PATH_PROGS(TarCmd,gtar tar,tar)
567 dnl ** check for patch
568 dnl if GNU patch is named gpatch, look for it first
569 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
571 AC_PATH_PROG(HSCOLOUR,HsColour)
572 # HsColour is passed to Cabal, so we need a native path
573 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
574 test "${OSTYPE}" != "msys" && \
575 test "${HSCOLOUR}" != ""
577 # Canonicalise to <drive>:/path/to/gcc
578 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
581 dnl ** check for DocBook toolchain
588 dnl ** check for ghc-pkg command
591 dnl ** check for installed happy binary + version
592 dnl (don't do it if we're booting from .hc files though.)
593 if test "$BootingFromHc" = "NO"; then
597 dnl ** check for installed alex binary + version
598 dnl (don't do it if we're booting from .hc files though.)
599 if test "$BootingFromHc" = "NO"; then
603 dnl Check we have an acceptable version of windres
606 dnl --------------------------------------------------
607 dnl ### program checking section ends here ###
608 dnl --------------------------------------------------
610 dnl --------------------------------------------------
611 dnl * Platform header file and syscall feature tests
612 dnl ### checking the state of the local header files and syscalls ###
614 dnl ** check for full ANSI header (.h) files
617 dnl ** Enable large file support. NB. do this before testing the type of
618 dnl off_t, because it will affect the result of that test.
621 dnl ** check for specific header (.h) files that we are interested in
622 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
624 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
627 dnl ** do we have long longs?
628 AC_CHECK_TYPES([long long])
630 dnl ** what are the sizes of various types
631 AC_CHECK_SIZEOF(char, 1)
632 AC_CHECK_SIZEOF(double, 8)
633 AC_CHECK_SIZEOF(float, 4)
634 AC_CHECK_SIZEOF(int, 4)
635 AC_CHECK_SIZEOF(long, 4)
636 if test "$ac_cv_type_long_long" = yes; then
637 AC_CHECK_SIZEOF(long long, 8)
639 AC_CHECK_SIZEOF(short, 2)
640 AC_CHECK_SIZEOF(unsigned char, 1)
641 AC_CHECK_SIZEOF(unsigned int, 4)
642 AC_CHECK_SIZEOF(unsigned long, 4)
643 if test "$ac_cv_type_long_long" = yes; then
644 AC_CHECK_SIZEOF(unsigned long long, 8)
646 AC_CHECK_SIZEOF(unsigned short, 2)
647 AC_CHECK_SIZEOF(void *, 4)
649 dnl ** what are alignment constraints on various types
650 FP_CHECK_ALIGNMENT(char)
651 FP_CHECK_ALIGNMENT(double)
652 FP_CHECK_ALIGNMENT(float)
653 FP_CHECK_ALIGNMENT(int)
654 FP_CHECK_ALIGNMENT(long)
655 if test "$ac_cv_type_long_long" = yes; then
656 FP_CHECK_ALIGNMENT(long long)
658 FP_CHECK_ALIGNMENT(short)
659 FP_CHECK_ALIGNMENT(unsigned char)
660 FP_CHECK_ALIGNMENT(unsigned int)
661 FP_CHECK_ALIGNMENT(unsigned long)
662 if test "$ac_cv_type_long_long" = yes; then
663 FP_CHECK_ALIGNMENT(unsigned long long)
665 FP_CHECK_ALIGNMENT(unsigned short)
666 FP_CHECK_ALIGNMENT(void *)
668 FP_CHECK_FUNC([WinExec],
669 [@%:@include <windows.h>], [WinExec("",0)])
671 FP_CHECK_FUNC([GetModuleFileName],
672 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
674 dnl ** check return type of signal handlers
675 dnl Foo: assumes we can use prototypes.
676 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
677 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
678 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
679 dnl #include <signal.h>
683 dnl void (*signal (int, void (*)(int)))(int);
686 dnl [ac_cv_type_signal_handler=void_int],
687 dnl [ac_cv_type_signal_handler=int_void])])
688 dnl if test "$ac_cv_type_signal_handler" = void_int; then
689 dnl AC_DEFINE(VOID_INT_SIGNALS)
692 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
694 if test "$ac_cv_type_signal" = void; then
695 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).])
698 dnl ** check for more functions
699 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
700 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
703 #include <sys/types.h>
704 #include <sys/time.h>
706 struct itimerval tval;
707 tval.it_value.tv_sec = 1;
708 tval.it_value.tv_usec = 0;
709 tval.it_interval = tval.it_value;
710 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
712 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
714 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
715 dnl ** _POSIX_C_SOURCE is defined
716 AC_CHECK_DECLS([ctime_r], , ,
717 [#define _POSIX_SOURCE 1
718 #define _POSIX_C_SOURCE 199506L
721 dnl ** check for mingwex library
722 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
723 AC_SUBST(HaveLibMingwEx)
725 if test $HaveLibMingwEx = YES ; then
726 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
729 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
730 dnl the order of these tests matters: bfd needs liberty
731 AC_CHECK_LIB(iberty, xmalloc)
732 AC_CHECK_LIB(bfd, bfd_init)
734 dnl ** check for math library
735 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
736 if test x"$fp_libm_not_needed" = xdunno; then
737 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
741 dnl ################################################################
742 dnl Check for libraries
743 dnl ################################################################
745 dnl ** check whether we need -ldl to get dlopen()
747 AC_CHECK_LIB(dl, dlopen,
749 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
754 dnl --------------------------------------------------
755 dnl * Miscellaneous feature tests
756 dnl --------------------------------------------------
758 dnl ** can we get alloca?
761 dnl ** Working vfork?
764 dnl ** determine whether or not const works
767 dnl ** are we big endian?
769 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
771 dnl ** check for leading underscores in symbol names
772 FP_LEADING_UNDERSCORE
774 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
778 dnl ** check for Apple-style dead-stripping support
779 dnl (.subsections-via-symbols assembler directive)
782 AC_MSG_CHECKING(for .subsections_via_symbols)
784 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
786 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
787 [Define to 1 if Apple-style dead-stripping is supported.])
791 dnl *** check for GNU non-executable stack note support (ELF only)
792 dnl (.section .note.GNU-stack,"",@progbits)
794 AC_MSG_CHECKING(for GNU non-executable stack support)
796 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
798 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
799 [Define to 1 if GNU non-executable stack notes are supported.])
803 dnl ** check for librt
804 AC_CHECK_LIB(rt, clock_gettime)
805 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
806 FP_CHECK_TIMER_CREATE
808 dnl ** check for Apple's "interesting" long double compatibility scheme
809 AC_MSG_CHECKING(for printf\$LDBLStub)
810 AC_TRY_LINK_FUNC(printf\$LDBLStub,
813 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
814 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
818 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
819 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
823 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
824 if test -n "$GTK_CONFIG"; then
825 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
826 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
828 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
832 AC_SUBST([GTK_CONFIG])
835 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
836 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
837 AC_SUBST(HavePapiLib)
838 AC_SUBST(HavePapiHeader)
840 AC_CHECK_FUNCS(__mingw_vfprintf)
842 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
849 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
850 test "$XsltprocCmd" = ""
852 BUILD_DOCBOOK_HTML=NO
854 BUILD_DOCBOOK_HTML=YES
856 AC_SUBST(BUILD_DOCBOOK_HTML)
858 if test "$DblatexCmd" = ""
864 BUILD_DOCBOOK_PDF=YES
866 AC_SUBST(BUILD_DOCBOOK_PS)
867 AC_SUBST(BUILD_DOCBOOK_PDF)
869 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
870 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
873 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 distrib/ghc.iss])
874 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
878 # http://savannah.gnu.org/bugs/index.php?1516
879 # $(eval ...) inside conditionals causes errors
880 # with make 3.80, so warn the user if it looks like they're about to
882 # We would use "grep -q" here, but Solaris's grep doesn't support it.
884 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
887 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
888 echo "This version cannot be used to build GHC."
889 echo "Please use GNU make >= 3.81."
897 ----------------------------------------------------------------------
898 Configure completed successfully.
900 Building GHC version : $ProjectVersion
902 Build platform : $BuildPlatform
903 Host platform : $HostPlatform
904 Target platform : $TargetPlatform
907 if test "$BootingFromHc" = "YES"; then
909 Bootstrapping from HC files.
913 Bootstrapping using : $WithGhc
914 which is version : $GhcVersion
919 Using GCC : $WhatGccIsCalled
920 which is version : $GccVersion
923 Happy : $HappyCmd ($HappyVersion)
924 Alex : $AlexCmd ($AlexVersion)
927 dblatex : $DblatexCmd
928 xsltproc : $XsltprocCmd"]
930 if test "$HSCOLOUR" = ""; then
932 HsColour was not found; documentation will not contain source links
941 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
942 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
943 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF"]
945 echo ["----------------------------------------------------------------------
949 For a standard build of GHC (fully optimised with profiling), type (g)make.
951 To make changes to the default build configuration, copy the file
952 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
954 For more information on how to configure your GHC build, see
955 http://hackage.haskell.org/trac/ghc/wiki/Building