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: ${WithGhc}"
178 dnl ** Without optimization some INLINE trickery fails for GHCi
181 dnl--------------------------------------------------------------------
182 dnl * Choose host(/target/build) platform
183 dnl--------------------------------------------------------------------
184 dnl We don't use the standard autoconf macros for this, but instead
185 dnl ask the bootstrapping compiler what platform it is for
187 dnl Guess host/target/build platform(s) if necessary.
188 m4_divert_once([HELP_CANON],
191 --build=BUILD configure for building on BUILD [guessed]
192 --host=HOST cross-compile to build programs to run on HOST [guessed]
193 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
195 if test "$build" = ""
197 if test "${WithGhc}" != ""
199 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
200 echo "Build platform inferred as: $build"
202 echo "Can't work out build platform"
209 if test "${WithGhc}" != ""
211 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
212 echo "Host platform inferred as: $host"
214 echo "Can't work out host platform"
219 if test "$target" = ""
221 if test "${WithGhc}" != ""
223 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
224 echo "Target platform inferred as: $target"
226 echo "Can't work out target platform"
235 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
236 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
243 i386-apple-darwin|powerpc-apple-darwin)
248 CFLAGS="$CFLAGS -m64"
249 LDFLAGS="$LDFLAGS -m64"
250 SRC_CC_OPTS="$SRC_CC_OPTS -m64"
251 SRC_LD_OPTS="$SRC_LD_OPTS -m64"
257 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
260 echo "Unknown arch $1"
268 dec|unknown|hp|apple|next|sun|sgi|ibm)
271 echo "Unknown vendor $1"
279 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
282 echo "Unknown OS '$1'"
289 BuildArch=`echo "$build" | sed 's/-.*//'`
290 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
291 BuildOS=`echo "$build" | sed 's/.*-//'`
292 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
293 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
294 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
295 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
297 checkArch "$BuildArch"
298 checkVendor "$BuildVendor"
302 HostArch=`echo "$host" | sed 's/-.*//'`
303 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
304 HostOS=`echo "$host" | sed 's/.*-//'`
305 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
306 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
307 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
308 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
310 checkArch "$HostArch"
311 checkVendor "$HostVendor"
314 TargetPlatform=$target
315 TargetArch=`echo "$target" | sed 's/-.*//'`
316 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
317 TargetOS=`echo "$target" | sed 's/.*-//'`
318 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
319 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
320 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
321 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
323 checkArch "$TargetArch"
324 checkVendor "$TargetVendor"
327 AC_SUBST(BuildPlatform)
328 AC_SUBST(HostPlatform)
329 AC_SUBST(TargetPlatform)
330 AC_SUBST(HostPlatform_CPP)
331 AC_SUBST(BuildPlatform_CPP)
332 AC_SUBST(TargetPlatform_CPP)
334 AC_SUBST(HostArch_CPP)
335 AC_SUBST(BuildArch_CPP)
336 AC_SUBST(TargetArch_CPP)
339 AC_SUBST(BuildOS_CPP)
340 AC_SUBST(TargetOS_CPP)
342 AC_SUBST(HostVendor_CPP)
343 AC_SUBST(BuildVendor_CPP)
344 AC_SUBST(TargetVendor_CPP)
350 [AC_HELP_STRING([--with-hc=ARG],
351 [Use ARG as the path to the compiler for compiling ordinary
352 Haskell code (default= value of --with-ghc)])],
358 AC_PATH_PROGS(NHC,nhc nhc98)
359 AC_PATH_PROG(HBC,hbc)
361 dnl ** Which gcc to use?
362 dnl --------------------------------------------------------------
364 [AC_HELP_STRING([--with-gcc=ARG],
365 [Use ARG as the path to GCC [default=autodetect]])],
366 [WhatGccIsCalled="$withval"
367 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
368 test "${OSTYPE}" != "msys" && \
369 test "${withval}" != ""
371 # Canonicalise to <drive>:/path/to/gcc
372 withval=`cygpath -m ${withval}`
377 [WhatGccIsCalled="gcc"]
379 AC_SUBST(WhatGccIsCalled)
381 dnl ** Which ld to use?
382 dnl --------------------------------------------------------------
384 [AC_HELP_STRING([--with-ld=ARG],
385 [Use ARG as the path to LD [default=autodetect]])],
386 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
387 test "${OSTYPE}" != "msys" && \
388 test "${withval}" != ""
390 # Canonicalise to <drive>:/path/to/ld
391 withval=`cygpath -m ${withval}`
399 dnl ** Booting from .hc files?
400 dnl --------------------------------------------------------------
401 AC_ARG_ENABLE(hc-boot,
402 [AC_HELP_STRING([--enable-hc-boot],
403 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
404 (This option is mostly of interest to porters.) [default=no]])],
405 [ if test x"$enableval" = x"yes"; then
413 AC_SUBST(BootingFromHc)
415 # This uses GHC, so put it after the "GHC is required" check above:
418 dnl ** Enable the construction of Win32 DLLs?
419 dnl --------------------------------------------------------------
421 dnl [ The ability to build the RTS and libraries as separate DLLs used
422 dnl to be supported, but isn't currently (updates to the RTS, compiler
423 dnl and build system would be required to bring it back again.)
424 dnl Hence, exposing it as an option is false advertisement, so better
425 dnl disable it to avoid confusion (but leave it commented-out rather
426 dnl than removed in order to remind ourselves to bring back the
427 dnl feature at some stage.) ]
429 dnl AC_ARG_ENABLE(win32-dlls,
430 dnl [ --enable-win32-dlls
431 dnl If on a Win32 platform running mingw32/cygwin, enable the
432 dnl construction of DLLs containing ghc-compiled code.
435 dnl case $HostOS_CPP in
438 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
442 dnl EnableWin32DLLs=YES
444 dnl [EnableWin32DLLs=NO]
446 dnl AC_SUBST(EnableWin32DLLs)
447 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
448 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
451 dnl ** Mac OS X: explicit deployment target
452 dnl --------------------------------------------------------------
453 AC_ARG_WITH([macosx-deployment-target],
454 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
455 [Build for Mac OS VERSION and higher (default= version of build host)])],
456 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
457 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
458 # ignore everywhere, but on Mac OS
459 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
460 FP_MACOSX_DEPLOYMENT_TARGET=none
462 [FP_MACOSX_DEPLOYMENT_TARGET=none]
464 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
465 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
466 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
468 dnl --------------------------------------------------------------
469 dnl End of configure script option section
470 dnl --------------------------------------------------------------
473 dnl --------------------------------------------------------------
474 dnl * General configuration checks
475 dnl --------------------------------------------------------------
477 dnl ** Can the unix package be built?
478 dnl --------------------------------------------------------------
480 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
485 AC_SUBST([GhcLibsWithUnix])
490 dnl ** look for `perl', but only in /bin on Windows
493 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
494 if test -z "$PerlCmd"; then
495 echo "You must install the version of Perl shipped with GHC"
496 echo "(or a compatible one) in /bin."
501 AC_PATH_PROG(PerlCmd,perl)
502 if test -z "$PerlCmd"; then
503 echo "You must install perl before you can continue"
504 echo "Perhaps it is already installed, but not in your PATH?"
507 FPTOOLS_CHECK_PERL_VERSION
512 dnl ** does #! path/to/perl work? (sometimes it's too long...)
515 dnl ** check for Python
516 AC_PATH_PROG(PythonCmd,python)
518 dnl ** look for GCC and find out which version
519 dnl Figure out which C compiler to use. Gcc is preferred.
520 dnl If gcc, make sure it's at least 2.1
526 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
529 AC_SUBST(SRC_CC_OPTS)
530 AC_SUBST(SRC_LD_OPTS)
532 dnl ** figure out how to do context diffs
535 dnl Let's make sure install-sh is executable here. If we got it from
536 dnl a darcs repo, it might not be (see bug #978).
538 dnl ** figure out how to do a BSD-ish install
541 dnl If you can run configure, you certainly have /bin/sh
542 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
544 dnl ** how to invoke `ar' and `ranlib'
545 FP_PROG_AR_NEEDS_RANLIB
546 FP_PROG_AR_SUPPORTS_INPUT
548 dnl ** Check to see whether ln -s works
552 dnl ** Find the path to sed
553 AC_PATH_PROG(SedCmd,sed)
556 dnl ** check for time command
557 AC_PATH_PROG(TimeCmd,time)
560 dnl if GNU tar is named gtar, look for it first.
561 AC_PATH_PROGS(TarCmd,gtar tar,tar)
563 dnl ** check for patch
564 dnl if GNU patch is named gpatch, look for it first
565 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
567 AC_PATH_PROG(HSCOLOUR,HsColour)
568 # HsColour is passed to Cabal, so we need a native path
569 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
570 test "${OSTYPE}" != "msys" && \
571 test "${HSCOLOUR}" != ""
573 # Canonicalise to <drive>:/path/to/gcc
574 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
577 dnl ** check for DocBook toolchain
584 dnl ** check for ghc-pkg command
587 dnl ** check for installed happy binary + version
588 dnl (don't do it if we're booting from .hc files though.)
589 if test "$BootingFromHc" = "NO"; then
593 dnl ** check for installed alex binary + version
594 dnl (don't do it if we're booting from .hc files though.)
595 if test "$BootingFromHc" = "NO"; then
599 dnl Check we have an acceptable version of windres
602 dnl --------------------------------------------------
603 dnl ### program checking section ends here ###
604 dnl --------------------------------------------------
606 dnl --------------------------------------------------
607 dnl * Platform header file and syscall feature tests
608 dnl ### checking the state of the local header files and syscalls ###
610 dnl ** check for full ANSI header (.h) files
613 dnl ** Enable large file support. NB. do this before testing the type of
614 dnl off_t, because it will affect the result of that test.
617 dnl ** check for specific header (.h) files that we are interested in
618 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
620 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
623 dnl ** do we have long longs?
624 AC_CHECK_TYPES([long long])
626 dnl ** what are the sizes of various types
627 AC_CHECK_SIZEOF(char, 1)
628 AC_CHECK_SIZEOF(double, 8)
629 AC_CHECK_SIZEOF(float, 4)
630 AC_CHECK_SIZEOF(int, 4)
631 AC_CHECK_SIZEOF(long, 4)
632 if test "$ac_cv_type_long_long" = yes; then
633 AC_CHECK_SIZEOF(long long, 8)
635 AC_CHECK_SIZEOF(short, 2)
636 AC_CHECK_SIZEOF(unsigned char, 1)
637 AC_CHECK_SIZEOF(unsigned int, 4)
638 AC_CHECK_SIZEOF(unsigned long, 4)
639 if test "$ac_cv_type_long_long" = yes; then
640 AC_CHECK_SIZEOF(unsigned long long, 8)
642 AC_CHECK_SIZEOF(unsigned short, 2)
643 AC_CHECK_SIZEOF(void *, 4)
645 dnl ** what are alignment constraints on various types
646 FP_CHECK_ALIGNMENT(char)
647 FP_CHECK_ALIGNMENT(double)
648 FP_CHECK_ALIGNMENT(float)
649 FP_CHECK_ALIGNMENT(int)
650 FP_CHECK_ALIGNMENT(long)
651 if test "$ac_cv_type_long_long" = yes; then
652 FP_CHECK_ALIGNMENT(long long)
654 FP_CHECK_ALIGNMENT(short)
655 FP_CHECK_ALIGNMENT(unsigned char)
656 FP_CHECK_ALIGNMENT(unsigned int)
657 FP_CHECK_ALIGNMENT(unsigned long)
658 if test "$ac_cv_type_long_long" = yes; then
659 FP_CHECK_ALIGNMENT(unsigned long long)
661 FP_CHECK_ALIGNMENT(unsigned short)
662 FP_CHECK_ALIGNMENT(void *)
664 FP_CHECK_FUNC([WinExec],
665 [@%:@include <windows.h>], [WinExec("",0)])
667 FP_CHECK_FUNC([GetModuleFileName],
668 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
670 dnl ** check return type of signal handlers
671 dnl Foo: assumes we can use prototypes.
672 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
673 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
674 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
675 dnl #include <signal.h>
679 dnl void (*signal (int, void (*)(int)))(int);
682 dnl [ac_cv_type_signal_handler=void_int],
683 dnl [ac_cv_type_signal_handler=int_void])])
684 dnl if test "$ac_cv_type_signal_handler" = void_int; then
685 dnl AC_DEFINE(VOID_INT_SIGNALS)
688 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
690 if test "$ac_cv_type_signal" = void; then
691 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).])
694 dnl ** check for more functions
695 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
696 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
699 #include <sys/types.h>
700 #include <sys/time.h>
702 struct itimerval tval;
703 tval.it_value.tv_sec = 1;
704 tval.it_value.tv_usec = 0;
705 tval.it_interval = tval.it_value;
706 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
708 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
710 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
711 dnl ** _POSIX_C_SOURCE is defined
712 AC_CHECK_DECLS([ctime_r], , ,
713 [#define _POSIX_SOURCE 1
714 #define _POSIX_C_SOURCE 199506L
717 dnl ** check for mingwex library
718 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
719 AC_SUBST(HaveLibMingwEx)
721 if test $HaveLibMingwEx = YES ; then
722 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
725 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
726 dnl the order of these tests matters: bfd needs liberty
727 AC_CHECK_LIB(iberty, xmalloc)
728 AC_CHECK_LIB(bfd, bfd_init)
730 dnl ** check for math library
731 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
732 if test x"$fp_libm_not_needed" = xdunno; then
733 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
737 dnl ################################################################
738 dnl Check for libraries
739 dnl ################################################################
741 dnl ** check whether we need -ldl to get dlopen()
743 AC_CHECK_LIB(dl, dlopen,
745 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
750 dnl --------------------------------------------------
751 dnl * Miscellaneous feature tests
752 dnl --------------------------------------------------
754 dnl ** can we get alloca?
757 dnl ** Working vfork?
760 dnl ** determine whether or not const works
763 dnl ** are we big endian?
765 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
767 dnl ** check for leading underscores in symbol names
768 FP_LEADING_UNDERSCORE
770 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
774 dnl ** check for Apple-style dead-stripping support
775 dnl (.subsections-via-symbols assembler directive)
778 AC_MSG_CHECKING(for .subsections_via_symbols)
780 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
782 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
783 [Define to 1 if Apple-style dead-stripping is supported.])
787 dnl *** check for GNU non-executable stack note support (ELF only)
788 dnl (.section .note.GNU-stack,"",@progbits)
790 AC_MSG_CHECKING(for GNU non-executable stack support)
792 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
794 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
795 [Define to 1 if GNU non-executable stack notes are supported.])
799 dnl ** check for librt
800 AC_CHECK_LIB(rt, clock_gettime)
801 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
802 FP_CHECK_TIMER_CREATE
804 dnl ** check for Apple's "interesting" long double compatibility scheme
805 AC_MSG_CHECKING(for printf\$LDBLStub)
806 AC_TRY_LINK_FUNC(printf\$LDBLStub,
809 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
810 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
814 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
815 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
819 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
820 if test -n "$GTK_CONFIG"; then
821 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
822 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
824 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
828 AC_SUBST([GTK_CONFIG])
831 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
832 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
833 AC_SUBST(HavePapiLib)
834 AC_SUBST(HavePapiHeader)
836 AC_CHECK_FUNCS(__mingw_vfprintf)
838 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
845 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
846 test "$XsltprocCmd" = ""
848 BUILD_DOCBOOK_HTML=NO
850 BUILD_DOCBOOK_HTML=YES
852 AC_SUBST(BUILD_DOCBOOK_HTML)
854 if test "$DblatexCmd" = ""
860 BUILD_DOCBOOK_PDF=YES
862 AC_SUBST(BUILD_DOCBOOK_PS)
863 AC_SUBST(BUILD_DOCBOOK_PDF)
865 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
866 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
869 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])
870 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
874 # http://savannah.gnu.org/bugs/index.php?1516
875 # $(eval ...) inside conditionals causes errors
876 # with make 3.80, so warn the user if it looks like they're about to
878 # We would use "grep -q" here, but Solaris's grep doesn't support it.
880 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
883 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
884 echo "This version cannot be used to build GHC."
885 echo "Please use GNU make >= 3.81."
893 ----------------------------------------------------------------------
894 Configure completed successfully.
896 Building GHC version : $ProjectVersion
898 Build platform : $BuildPlatform
899 Host platform : $HostPlatform
900 Target platform : $TargetPlatform
903 if test "$BootingFromHc" = "YES"; then
905 Bootstrapping from HC files.
909 Bootstrapping using : $WithGhc
910 which is version : $GhcVersion
915 Using GCC : $WhatGccIsCalled
916 which is version : $GccVersion
919 Happy : $HappyCmd ($HappyVersion)
920 Alex : $AlexCmd ($AlexVersion)
923 dblatex : $DblatexCmd
924 xsltproc : $XsltprocCmd"]
926 if test "$HSCOLOUR" = ""; then
928 HsColour was not found; documentation will not contain source links
937 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
938 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
939 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF
941 Building shared libraries : $BuildSharedLibs"]
943 echo ["----------------------------------------------------------------------
947 For a standard build of GHC (fully optimised with profiling), type (g)make.
949 To make changes to the default build configuration, copy the file
950 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
952 For more information on how to configure your GHC build, see
953 http://hackage.haskell.org/trac/ghc/wiki/Building