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], [$ac_configure_args])
36 dnl ----------------------------------------------------------
37 dnl ** Find unixy sort and find commands,
38 dnl ** which are needed by FP_SETUP_PROJECT_VERSION
40 dnl ** Find find command (for Win32's benefit)
43 dnl ** Find sort command (for the benefit of Win32 environs)
46 dnl ----------------------------------------------------------
47 FP_SETUP_PROJECT_VERSION
49 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
50 AC_SUBST([release], [1])
52 # First off, a distrib sanity check..
53 AC_CONFIG_SRCDIR([mk/config.mk.in])
55 dnl * We require autoconf version 2.52
56 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
57 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
60 # -------------------------------------------------------------------------
61 # Prepare to generate the following header files
64 AC_CONFIG_HEADER(mk/config.h)
66 # No, semi-sadly, we don't do `--srcdir'...
67 if test x"$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 "$GHC" = ""; then
88 AC_PATH_PROG([GHC], [ghc])
92 dnl ** Booting from unregisterised .hc files?
93 dnl --------------------------------------------------------------
94 AC_ARG_ENABLE(hc-boot-unregisterised,
95 [AC_HELP_STRING([--enable-hc-boot-unregisterised],
96 [ With --enable-hc-boot, treat the intermediate .hc files as
97 unregisterised rather than registerised code.
98 (This option is mostly of interest to porters.) [default=no]])],
99 [ if test x"$enableval" = x"yes"; then
100 BootingFromUnregisterisedHc=YES
102 BootingFromUnregisterisedHc=NO
105 [BootingFromUnregisterisedHc=NO]
107 AC_SUBST(BootingFromUnregisterisedHc)
109 if test "$BootingFromHc" = "NO"; then
110 if test "$BootingFromUnregisterisedHc" = "YES"; then
111 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
115 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
116 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
117 if test "$WithGhc" = ""; then
118 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
120 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
121 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
123 if test `expr $GhcMinVersion % 2` = "1"; then
124 echo $EnableBootstrapWithDevelSnaphost
125 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
127 $WithGhc is a development snapshot of GHC, version $GhcVersion.
128 Bootstrapping using this version of GHC is not supported, and may not
129 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
130 or --with-ghc to specify a different GHC to use.])
135 AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
136 [AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
137 [Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
138 EnableBootstrapWithDevelSnaphost=YES,
139 EnableBootstrapWithDevelSnaphost=NO
142 if test "$WithGhc" != ""; then
143 FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
145 if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
146 AC_MSG_ERROR([Cannot determine the version of $WithGhc. Is it really GHC?])
149 AC_SUBST(GhcVersion)dnl
150 AC_SUBST(GhcMajVersion)dnl
151 AC_SUBST(GhcMinVersion)dnl
152 AC_SUBST(GhcPatchLevel)dnl
153 GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
154 GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
155 if test $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
156 AC_SUBST(ghc_ge_609)dnl
159 # GHC is passed to Cabal, so we need a native path
160 if test "${WithGhc}" != ""
162 ghc_host=`${WithGhc} +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
164 if test "$ghc_host" = "i386-unknown-mingw32"
166 if test "${OSTYPE}" = "msys"
168 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
170 # Canonicalise to <drive>:/path/to/ghc
171 WithGhc=`cygpath -m ${WithGhc}`
173 echo "GHC path canonicalised to: ${WithGhc}"
178 dnl--------------------------------------------------------------------
179 dnl * Choose host(/target/build) platform
180 dnl--------------------------------------------------------------------
181 dnl We don't use the standard autoconf macros for this, but instead
182 dnl ask the bootstrapping compiler what platform it is for
184 dnl Guess host/target/build platform(s) if necessary.
185 m4_divert_once([HELP_CANON],
188 --build=BUILD configure for building on BUILD [guessed]
189 --host=HOST cross-compile to build programs to run on HOST [guessed]
190 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
192 if test "$build" = ""
194 if test "${WithGhc}" != ""
196 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
197 echo "Build platform inferred as: $build"
199 echo "Can't work out build platform"
206 if test "${WithGhc}" != ""
208 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
209 echo "Host platform inferred as: $host"
211 echo "Can't work out host platform"
216 if test "$target" = ""
218 if test "${WithGhc}" != ""
220 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
221 echo "Target platform inferred as: $target"
223 echo "Can't work out target platform"
232 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
233 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
240 i386-apple-darwin|powerpc-apple-darwin)
245 CFLAGS="$CFLAGS -m64"
246 LDFLAGS="$LDFLAGS -m64"
252 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
255 echo "Unknown arch $1"
263 dec|unknown|hp|apple|next|sun|sgi|ibm)
266 echo "Unknown vendor $1"
274 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
277 echo "Unknown OS '$1'"
284 BuildArch=`echo "$build" | sed 's/-.*//'`
285 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
286 BuildOS=`echo "$build" | sed 's/.*-//'`
287 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
288 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
289 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
290 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
292 checkArch "$BuildArch"
293 checkVendor "$BuildVendor"
297 HostArch=`echo "$host" | sed 's/-.*//'`
298 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
299 HostOS=`echo "$host" | sed 's/.*-//'`
300 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
301 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
302 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
303 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
305 checkArch "$HostArch"
306 checkVendor "$HostVendor"
309 TargetPlatform=$target
310 TargetArch=`echo "$target" | sed 's/-.*//'`
311 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
312 TargetOS=`echo "$target" | sed 's/.*-//'`
313 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
314 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
315 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
316 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
318 checkArch "$TargetArch"
319 checkVendor "$TargetVendor"
322 AC_SUBST(BuildPlatform)
323 AC_SUBST(HostPlatform)
324 AC_SUBST(TargetPlatform)
325 AC_SUBST(HostPlatform_CPP)
326 AC_SUBST(BuildPlatform_CPP)
327 AC_SUBST(TargetPlatform_CPP)
329 AC_SUBST(HostArch_CPP)
330 AC_SUBST(BuildArch_CPP)
331 AC_SUBST(TargetArch_CPP)
334 AC_SUBST(BuildOS_CPP)
335 AC_SUBST(TargetOS_CPP)
337 AC_SUBST(HostVendor_CPP)
338 AC_SUBST(BuildVendor_CPP)
339 AC_SUBST(TargetVendor_CPP)
345 [AC_HELP_STRING([--with-hc=ARG],
346 [Use ARG as the path to the compiler for compiling ordinary
347 Haskell code (default= value of --with-ghc)])],
353 AC_PATH_PROGS(NHC,nhc nhc98)
354 AC_PATH_PROG(HBC,hbc)
356 dnl ** Which gcc to use?
357 dnl --------------------------------------------------------------
359 [AC_HELP_STRING([--with-gcc=ARG],
360 [Use ARG as the path to GCC [default=autodetect]])],
361 [WhatGccIsCalled="$withval"
362 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
363 test "${OSTYPE}" != "msys" && \
364 test "${withval}" != ""
366 # Canonicalise to <drive>:/path/to/gcc
367 withval=`cygpath -m ${withval}`
372 [WhatGccIsCalled="gcc"]
374 AC_SUBST(WhatGccIsCalled)
376 dnl ** Which ld to use?
377 dnl --------------------------------------------------------------
379 [AC_HELP_STRING([--with-ld=ARG],
380 [Use ARG as the path to LD [default=autodetect]])],
381 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
382 test "${OSTYPE}" != "msys" && \
383 test "${withval}" != ""
385 # Canonicalise to <drive>:/path/to/ld
386 withval=`cygpath -m ${withval}`
394 dnl ** Build shared and/or static libs?
395 dnl --------------------------------------------------------------
396 AC_ARG_ENABLE(shared,
397 [AC_HELP_STRING([--enable-shared],
398 [Build shared libraries, if available (EXPERIMENTAL, non-working). [default=no]])],
399 [ if test x"$enableval" = x"yes"; then
400 AC_MSG_WARN([--enable-shared is experimental and not fully supported at this time])
408 AC_SUBST(BuildSharedLibs)
411 # AC_ARG_ENABLE(static,
412 # [AC_HELP_STRING([--enable-static],
413 # [Build static libraries. [default=yes]])],
414 # [ if test x"$enableval" = x"yes"; then
415 # BuildStaticLibs=YES
420 # [BuildStaticLibs=YES]
422 # AC_SUBST(BuildStaticLibs)
424 dnl ** Booting from .hc files?
425 dnl --------------------------------------------------------------
426 AC_ARG_ENABLE(hc-boot,
427 [AC_HELP_STRING([--enable-hc-boot],
428 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
429 (This option is mostly of interest to porters.) [default=no]])],
430 [ if test x"$enableval" = x"yes"; then
438 AC_SUBST(BootingFromHc)
440 # This uses GHC, so put it after the "GHC is required" check above:
443 dnl ** Enable the construction of Win32 DLLs?
444 dnl --------------------------------------------------------------
446 dnl [ The ability to build the RTS and libraries as separate DLLs used
447 dnl to be supported, but isn't currently (updates to the RTS, compiler
448 dnl and build system would be required to bring it back again.)
449 dnl Hence, exposing it as an option is false advertisement, so better
450 dnl disable it to avoid confusion (but leave it commented-out rather
451 dnl than removed in order to remind ourselves to bring back the
452 dnl feature at some stage.) ]
454 dnl AC_ARG_ENABLE(win32-dlls,
455 dnl [ --enable-win32-dlls
456 dnl If on a Win32 platform running mingw32/cygwin, enable the
457 dnl construction of DLLs containing ghc-compiled code.
460 dnl case $HostOS_CPP in
463 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
467 dnl EnableWin32DLLs=YES
469 dnl [EnableWin32DLLs=NO]
471 dnl AC_SUBST(EnableWin32DLLs)
472 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
473 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
476 dnl ** Mac OS X: explicit deployment target
477 dnl --------------------------------------------------------------
478 AC_ARG_WITH([macosx-deployment-target],
479 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
480 [Build for Mac OS VERSION and higher (default= version of build host)])],
481 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
482 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
483 # ignore everywhere, but on Mac OS
484 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
485 FP_MACOSX_DEPLOYMENT_TARGET=none
487 [FP_MACOSX_DEPLOYMENT_TARGET=none]
489 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
490 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
491 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
493 dnl --------------------------------------------------------------
494 dnl End of configure script option section
495 dnl --------------------------------------------------------------
498 dnl --------------------------------------------------------------
499 dnl * General configuration checks
500 dnl --------------------------------------------------------------
502 dnl ** Can the unix package be built?
503 dnl --------------------------------------------------------------
505 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
510 AC_SUBST([GhcLibsWithUnix])
515 dnl ** look for `perl', but only in /bin on Windows
518 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
519 if test -z "$PerlCmd"; then
520 echo "You must install the version of Perl shipped with GHC"
521 echo "(or a compatible one) in /bin."
526 AC_PATH_PROG(PerlCmd,perl)
527 if test -z "$PerlCmd"; then
528 echo "You must install perl before you can continue"
529 echo "Perhaps it is already installed, but not in your PATH?"
532 FPTOOLS_CHECK_PERL_VERSION
537 dnl ** does #! path/to/perl work? (sometimes it's too long...)
540 dnl ** check for Python
541 AC_PATH_PROG(PythonCmd,python)
543 dnl ** look for GCC and find out which version
544 dnl Figure out which C compiler to use. Gcc is preferred.
545 dnl If gcc, make sure it's at least 2.1
551 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
554 dnl ** Without optimization some INLINE trickery fails for GHCi
557 SRC_CC_OPTS="$SRC_CC_OPTS $CFLAGS"
558 SRC_LD_OPTS="$SRC_LD_OPTS $LDFLAGS"
560 AC_SUBST(SRC_CC_OPTS)
561 AC_SUBST(SRC_LD_OPTS)
563 dnl ** figure out how to do context diffs
566 dnl Let's make sure install-sh is executable here. If we got it from
567 dnl a darcs repo, it might not be (see bug #978).
569 dnl ** figure out how to do a BSD-ish install
572 dnl If you can run configure, you certainly have /bin/sh
573 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
575 dnl ** how to invoke `ar' and `ranlib'
576 FP_PROG_AR_NEEDS_RANLIB
577 FP_PROG_AR_SUPPORTS_INPUT
579 dnl ** Check to see whether ln -s works
583 dnl ** Find the path to sed
584 AC_PATH_PROG(SedCmd,sed)
587 dnl ** check for time command
588 AC_PATH_PROG(TimeCmd,time)
591 dnl if GNU tar is named gtar, look for it first.
592 AC_PATH_PROGS(TarCmd,gtar tar,tar)
594 dnl ** check for patch
595 dnl if GNU patch is named gpatch, look for it first
596 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
598 AC_PATH_PROG(HSCOLOUR,HsColour)
599 # HsColour is passed to Cabal, so we need a native path
600 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
601 test "${OSTYPE}" != "msys" && \
602 test "${HSCOLOUR}" != ""
604 # Canonicalise to <drive>:/path/to/gcc
605 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
608 dnl ** check for DocBook toolchain
615 dnl ** check for ghc-pkg command
618 dnl ** check for installed happy binary + version
619 dnl (don't do it if we're booting from .hc files though.)
620 if test "$BootingFromHc" = "NO"; then
624 dnl ** check for installed alex binary + version
625 dnl (don't do it if we're booting from .hc files though.)
626 if test "$BootingFromHc" = "NO"; then
630 dnl Check we have an acceptable version of windres
633 dnl --------------------------------------------------
634 dnl ### program checking section ends here ###
635 dnl --------------------------------------------------
637 dnl --------------------------------------------------
638 dnl * Platform header file and syscall feature tests
639 dnl ### checking the state of the local header files and syscalls ###
641 dnl ** check for full ANSI header (.h) files
644 dnl ** Enable large file support. NB. do this before testing the type of
645 dnl off_t, because it will affect the result of that test.
648 dnl ** check for specific header (.h) files that we are interested in
649 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
651 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
654 dnl ** do we have long longs?
655 AC_CHECK_TYPES([long long])
657 dnl ** what are the sizes of various types
658 AC_CHECK_SIZEOF(char, 1)
659 AC_CHECK_SIZEOF(double, 8)
660 AC_CHECK_SIZEOF(float, 4)
661 AC_CHECK_SIZEOF(int, 4)
662 AC_CHECK_SIZEOF(long, 4)
663 if test "$ac_cv_type_long_long" = yes; then
664 AC_CHECK_SIZEOF(long long, 8)
666 AC_CHECK_SIZEOF(short, 2)
667 AC_CHECK_SIZEOF(unsigned char, 1)
668 AC_CHECK_SIZEOF(unsigned int, 4)
669 AC_CHECK_SIZEOF(unsigned long, 4)
670 if test "$ac_cv_type_long_long" = yes; then
671 AC_CHECK_SIZEOF(unsigned long long, 8)
673 AC_CHECK_SIZEOF(unsigned short, 2)
674 AC_CHECK_SIZEOF(void *, 4)
676 dnl ** what are alignment constraints on various types
677 FP_CHECK_ALIGNMENT(char)
678 FP_CHECK_ALIGNMENT(double)
679 FP_CHECK_ALIGNMENT(float)
680 FP_CHECK_ALIGNMENT(int)
681 FP_CHECK_ALIGNMENT(long)
682 if test "$ac_cv_type_long_long" = yes; then
683 FP_CHECK_ALIGNMENT(long long)
685 FP_CHECK_ALIGNMENT(short)
686 FP_CHECK_ALIGNMENT(unsigned char)
687 FP_CHECK_ALIGNMENT(unsigned int)
688 FP_CHECK_ALIGNMENT(unsigned long)
689 if test "$ac_cv_type_long_long" = yes; then
690 FP_CHECK_ALIGNMENT(unsigned long long)
692 FP_CHECK_ALIGNMENT(unsigned short)
693 FP_CHECK_ALIGNMENT(void *)
695 FP_CHECK_FUNC([WinExec],
696 [@%:@include <windows.h>], [WinExec("",0)])
698 FP_CHECK_FUNC([GetModuleFileName],
699 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
701 dnl ** check return type of signal handlers
702 dnl Foo: assumes we can use prototypes.
703 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
704 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
705 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
706 dnl #include <signal.h>
710 dnl void (*signal (int, void (*)(int)))(int);
713 dnl [ac_cv_type_signal_handler=void_int],
714 dnl [ac_cv_type_signal_handler=int_void])])
715 dnl if test "$ac_cv_type_signal_handler" = void_int; then
716 dnl AC_DEFINE(VOID_INT_SIGNALS)
719 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
721 if test "$ac_cv_type_signal" = void; then
722 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).])
725 dnl ** check for more functions
726 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
727 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
730 #include <sys/types.h>
731 #include <sys/time.h>
733 struct itimerval tval;
734 tval.it_value.tv_sec = 1;
735 tval.it_value.tv_usec = 0;
736 tval.it_interval = tval.it_value;
737 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
739 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
741 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
742 dnl ** _POSIX_C_SOURCE is defined
743 AC_CHECK_DECLS([ctime_r], , ,
744 [#define _POSIX_SOURCE 1
745 #define _POSIX_C_SOURCE 199506L
748 dnl ** check for mingwex library
749 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
750 AC_SUBST(HaveLibMingwEx)
752 if test $HaveLibMingwEx = YES ; then
753 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
756 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
757 dnl the order of these tests matters: bfd needs liberty
758 AC_CHECK_LIB(iberty, xmalloc)
759 AC_CHECK_LIB(bfd, bfd_init)
761 dnl ** check for math library
762 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
763 if test x"$fp_libm_not_needed" = xdunno; then
764 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
768 dnl ################################################################
769 dnl Check for libraries
770 dnl ################################################################
772 dnl ** check whether we need -ldl to get dlopen()
774 AC_CHECK_LIB(dl, dlopen,
776 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
781 dnl --------------------------------------------------
782 dnl * Miscellaneous feature tests
783 dnl --------------------------------------------------
785 dnl ** can we get alloca?
788 dnl ** Working vfork?
791 dnl ** determine whether or not const works
794 dnl ** are we big endian?
796 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
798 dnl ** check for leading underscores in symbol names
799 FP_LEADING_UNDERSCORE
801 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
805 dnl ** check for Apple-style dead-stripping support
806 dnl (.subsections-via-symbols assembler directive)
809 AC_MSG_CHECKING(for .subsections_via_symbols)
811 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
813 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
814 [Define to 1 if Apple-style dead-stripping is supported.])
818 dnl *** check for GNU non-executable stack note support (ELF only)
819 dnl (.section .note.GNU-stack,"",@progbits)
821 AC_MSG_CHECKING(for GNU non-executable stack support)
823 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
825 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
826 [Define to 1 if GNU non-executable stack notes are supported.])
830 dnl ** check for librt
831 AC_CHECK_LIB(rt, clock_gettime)
832 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
833 FP_CHECK_TIMER_CREATE
835 dnl ** check for Apple's "interesting" long double compatibility scheme
836 AC_MSG_CHECKING(for printf\$LDBLStub)
837 AC_TRY_LINK_FUNC(printf\$LDBLStub,
840 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
841 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
845 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
846 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
850 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
851 if test -n "$GTK_CONFIG"; then
852 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
853 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
855 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
859 AC_SUBST([GTK_CONFIG])
862 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
863 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
864 AC_SUBST(HavePapiLib)
865 AC_SUBST(HavePapiHeader)
867 AC_CHECK_FUNCS(__mingw_vfprintf)
869 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
876 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
877 test "$XsltprocCmd" = ""
879 BUILD_DOCBOOK_HTML=NO
881 BUILD_DOCBOOK_HTML=YES
883 AC_SUBST(BUILD_DOCBOOK_HTML)
885 if test "$DblatexCmd" = ""
891 BUILD_DOCBOOK_PDF=YES
893 AC_SUBST(BUILD_DOCBOOK_PS)
894 AC_SUBST(BUILD_DOCBOOK_PDF)
896 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
897 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
900 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])
901 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
905 # http://savannah.gnu.org/bugs/index.php?1516
906 # $(eval ...) inside conditionals causes errors
907 # with make 3.80, so warn the user if it looks like they're about to
909 # We would use "grep -q" here, but Solaris's grep doesn't support it.
911 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
914 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
915 echo "This version cannot be used to build GHC."
916 echo "Please use GNU make >= 3.81."
924 ----------------------------------------------------------------------
925 Configure completed successfully.
927 Building GHC version : $ProjectVersion
929 Build platform : $BuildPlatform
930 Host platform : $HostPlatform
931 Target platform : $TargetPlatform
934 if test "$BootingFromHc" = "YES"; then
936 Bootstrapping from HC files.
940 Bootstrapping using : $WithGhc
941 which is version : $GhcVersion
946 Using GCC : $WhatGccIsCalled
947 which is version : $GccVersion
950 Happy : $HappyCmd ($HappyVersion)
951 Alex : $AlexCmd ($AlexVersion)
954 dblatex : $DblatexCmd
955 xsltproc : $XsltprocCmd"]
957 if test "$HSCOLOUR" = ""; then
959 HsColour was not found; documentation will not contain source links
968 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
969 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
970 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF
972 Building shared libraries : $BuildSharedLibs"]
974 echo ["----------------------------------------------------------------------
978 For a standard build of GHC (fully optimised with profiling), type (g)make.
980 To make changes to the default build configuration, copy the file
981 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
983 For more information on how to configure your GHC build, see
984 http://hackage.haskell.org/trac/ghc/wiki/Building