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 "$GHC" = ""; then
88 AC_PATH_PROG([GHC], [ghc])
92 dnl ** Booting from .hc files?
93 dnl --------------------------------------------------------------
94 AC_ARG_ENABLE(hc-boot,
95 [AC_HELP_STRING([--enable-hc-boot],
96 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
97 (This option is mostly of interest to porters.) [default=no]])],
98 [ if test x"$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 $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
129 AC_SUBST(ghc_ge_609)dnl
132 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
133 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
134 if test "$WithGhc" = ""; then
135 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
137 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
138 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
140 if test `expr $GhcMinVersion % 2` = "1"; then
141 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
143 $WithGhc is a development snapshot of GHC, version $GhcVersion.
144 Bootstrapping using this version of GHC is not supported, and may not
145 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
146 or --with-ghc to specify a different GHC to use.])
151 # GHC is passed to Cabal, so we need a native path
152 if test "${WithGhc}" != ""
154 ghc_host=`${WithGhc} +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
156 if test "$ghc_host" = "i386-unknown-mingw32"
158 if test "${OSTYPE}" = "msys"
160 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
162 # Canonicalise to <drive>:/path/to/ghc
163 WithGhc=`cygpath -m ${WithGhc}`
165 echo "GHC path canonicalised to: ${WithGhc}"
170 dnl ** Without optimization some INLINE trickery fails for GHCi
173 dnl Allow to specify iconv options to the toplevel configure script
174 dnl so they can be properly passed to sub-builds.
175 dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined
176 dnl to the empty string to allow them to be overridden from the
179 AC_ARG_WITH([iconv-includes],
180 [AC_HELP_STRING([--with-iconv-includes],
181 [directory containing iconv.h])],
182 [ICONV_INCLUDE_DIRS=$withval])
184 AC_ARG_WITH([iconv-libraries],
185 [AC_HELP_STRING([--with-iconv-libraries],
186 [directory containing iconv library])],
187 [ICONV_LIB_DIRS=$withval])
189 AC_SUBST(ICONV_INCLUDE_DIRS)
190 AC_SUBST(ICONV_LIB_DIRS)
192 dnl--------------------------------------------------------------------
193 dnl * Choose host(/target/build) platform
194 dnl--------------------------------------------------------------------
195 dnl We don't use the standard autoconf macros for this, but instead
196 dnl ask the bootstrapping compiler what platform it is for
198 dnl Guess host/target/build platform(s) if necessary.
199 m4_divert_once([HELP_CANON],
202 --build=BUILD configure for building on BUILD [guessed]
203 --host=HOST cross-compile to build programs to run on HOST [guessed]
204 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
206 if test "$build" = ""
208 if test "${WithGhc}" != ""
210 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
211 echo "Build platform inferred as: $build"
213 echo "Can't work out build platform"
220 if test "${WithGhc}" != ""
222 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
223 echo "Host platform inferred as: $host"
225 echo "Can't work out host platform"
230 if test "$target" = ""
232 if test "${WithGhc}" != ""
234 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
235 echo "Target platform inferred as: $target"
237 echo "Can't work out target platform"
246 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
247 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
254 i386-apple-darwin|powerpc-apple-darwin)
256 CFLAGS="$CFLAGS -m32"
257 LDFLAGS="$LDFLAGS -m32"
258 CONF_CC_OPTS="$CONF_CC_OPTS -m32"
259 CONF_LD_OPTS="$CONF_LD_OPTS -m32"
263 CFLAGS="$CFLAGS -m64"
264 LDFLAGS="$LDFLAGS -m64"
265 CONF_CC_OPTS="$CONF_CC_OPTS -m64"
266 CONF_LD_OPTS="$CONF_LD_OPTS -m64"
272 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
275 echo "Unknown arch $1"
283 dec|unknown|hp|apple|next|sun|sgi|ibm)
286 echo "Unknown vendor $1"
294 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
297 echo "Unknown OS '$1'"
304 BuildArch=`echo "$build" | sed 's/-.*//'`
305 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
306 BuildOS=`echo "$build" | sed 's/.*-//'`
307 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
308 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
309 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
310 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
312 checkArch "$BuildArch"
313 checkVendor "$BuildVendor"
317 HostArch=`echo "$host" | sed 's/-.*//'`
318 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
319 HostOS=`echo "$host" | sed 's/.*-//'`
320 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
321 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
322 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
323 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
325 checkArch "$HostArch"
326 checkVendor "$HostVendor"
329 TargetPlatform=$target
330 TargetArch=`echo "$target" | sed 's/-.*//'`
331 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
332 TargetOS=`echo "$target" | sed 's/.*-//'`
333 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
334 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
335 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
336 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
338 checkArch "$TargetArch"
339 checkVendor "$TargetVendor"
342 AC_SUBST(BuildPlatform)
343 AC_SUBST(HostPlatform)
344 AC_SUBST(TargetPlatform)
345 AC_SUBST(HostPlatform_CPP)
346 AC_SUBST(BuildPlatform_CPP)
347 AC_SUBST(TargetPlatform_CPP)
349 AC_SUBST(HostArch_CPP)
350 AC_SUBST(BuildArch_CPP)
351 AC_SUBST(TargetArch_CPP)
354 AC_SUBST(BuildOS_CPP)
355 AC_SUBST(TargetOS_CPP)
357 AC_SUBST(HostVendor_CPP)
358 AC_SUBST(BuildVendor_CPP)
359 AC_SUBST(TargetVendor_CPP)
365 [AC_HELP_STRING([--with-hc=ARG],
366 [Use ARG as the path to the compiler for compiling ordinary
367 Haskell code (default= value of --with-ghc)])],
373 AC_PATH_PROGS(NHC,nhc nhc98)
374 AC_PATH_PROG(HBC,hbc)
376 dnl ** Which gcc to use?
377 dnl --------------------------------------------------------------
379 [AC_HELP_STRING([--with-gcc=ARG],
380 [Use ARG as the path to GCC [default=autodetect]])],
381 [WhatGccIsCalled="$withval"
382 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
383 test "${OSTYPE}" != "msys" && \
384 test "${withval}" != ""
386 # Canonicalise to <drive>:/path/to/gcc
387 withval=`cygpath -m ${withval}`
392 [WhatGccIsCalled="gcc"]
394 AC_SUBST(WhatGccIsCalled)
396 dnl ** Which ld to use?
397 dnl --------------------------------------------------------------
399 [AC_HELP_STRING([--with-ld=ARG],
400 [Use ARG as the path to LD [default=autodetect]])],
401 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
402 test "${OSTYPE}" != "msys" && \
403 test "${withval}" != ""
405 # Canonicalise to <drive>:/path/to/ld
406 withval=`cygpath -m ${withval}`
414 # This uses GHC, so put it after the "GHC is required" check above:
417 dnl ** Enable the construction of Win32 DLLs?
418 dnl --------------------------------------------------------------
420 dnl [ The ability to build the RTS and libraries as separate DLLs used
421 dnl to be supported, but isn't currently (updates to the RTS, compiler
422 dnl and build system would be required to bring it back again.)
423 dnl Hence, exposing it as an option is false advertisement, so better
424 dnl disable it to avoid confusion (but leave it commented-out rather
425 dnl than removed in order to remind ourselves to bring back the
426 dnl feature at some stage.) ]
428 dnl AC_ARG_ENABLE(win32-dlls,
429 dnl [ --enable-win32-dlls
430 dnl If on a Win32 platform running mingw32/cygwin, enable the
431 dnl construction of DLLs containing ghc-compiled code.
434 dnl case $HostOS_CPP in
437 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
441 dnl EnableWin32DLLs=YES
443 dnl [EnableWin32DLLs=NO]
445 dnl AC_SUBST(EnableWin32DLLs)
446 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
447 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
450 dnl ** Mac OS X: explicit deployment target
451 dnl --------------------------------------------------------------
452 AC_ARG_WITH([macosx-deployment-target],
453 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
454 [Build for Mac OS VERSION and higher (default= version of build host)])],
455 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
456 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
457 # ignore everywhere, but on Mac OS
458 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
459 FP_MACOSX_DEPLOYMENT_TARGET=none
461 [FP_MACOSX_DEPLOYMENT_TARGET=none]
463 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
464 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
465 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
467 dnl --------------------------------------------------------------
468 dnl End of configure script option section
469 dnl --------------------------------------------------------------
472 dnl --------------------------------------------------------------
473 dnl * General configuration checks
474 dnl --------------------------------------------------------------
476 dnl ** Can the unix package be built?
477 dnl --------------------------------------------------------------
479 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
484 AC_SUBST([GhcLibsWithUnix])
489 dnl ** look for `perl', but only in /bin on Windows
492 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
493 if test -z "$PerlCmd"; then
494 echo "You must install the version of Perl shipped with GHC"
495 echo "(or a compatible one) in /bin."
500 AC_PATH_PROG(PerlCmd,perl)
501 if test -z "$PerlCmd"; then
502 echo "You must install perl before you can continue"
503 echo "Perhaps it is already installed, but not in your PATH?"
506 FPTOOLS_CHECK_PERL_VERSION
511 dnl ** does #! path/to/perl work? (sometimes it's too long...)
514 dnl ** check for Python
515 AC_PATH_PROG(PythonCmd,python)
517 dnl ** look for GCC and find out which version
518 dnl Figure out which C compiler to use. Gcc is preferred.
519 dnl If gcc, make sure it's at least 2.1
525 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
528 AC_SUBST(CONF_CC_OPTS)
529 AC_SUBST(CONF_LD_OPTS)
531 dnl ** figure out how to do context diffs
534 dnl Let's make sure install-sh is executable here. If we got it from
535 dnl a darcs repo, it might not be (see bug #978).
537 dnl ** figure out how to do a BSD-ish install
540 dnl If you can run configure, you certainly have /bin/sh
541 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
543 dnl ** how to invoke `ar' and `ranlib'
544 FP_PROG_AR_NEEDS_RANLIB
545 FP_PROG_AR_SUPPORTS_INPUT
547 dnl ** Check to see whether ln -s works
551 dnl ** Find the path to sed
552 AC_PATH_PROG(SedCmd,sed)
555 dnl ** check for time command
556 AC_PATH_PROG(TimeCmd,time)
559 dnl if GNU tar is named gtar, look for it first.
560 AC_PATH_PROGS(TarCmd,gtar tar,tar)
562 dnl ** check for patch
563 dnl if GNU patch is named gpatch, look for it first
564 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
566 AC_PATH_PROG(HSCOLOUR,HsColour)
567 # HsColour is passed to Cabal, so we need a native path
568 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
569 test "${OSTYPE}" != "msys" && \
570 test "${HSCOLOUR}" != ""
572 # Canonicalise to <drive>:/path/to/gcc
573 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
576 dnl ** check for DocBook toolchain
583 dnl ** check for ghc-pkg command
586 dnl ** check for installed happy binary + version
587 dnl (don't do it if we're booting from .hc files though.)
588 if test "$BootingFromHc" = "NO"; then
592 dnl ** check for installed alex binary + version
593 dnl (don't do it if we're booting from .hc files though.)
594 if test "$BootingFromHc" = "NO"; then
598 dnl Check we have an acceptable version of windres
601 dnl --------------------------------------------------
602 dnl ### program checking section ends here ###
603 dnl --------------------------------------------------
605 dnl --------------------------------------------------
606 dnl * Platform header file and syscall feature tests
607 dnl ### checking the state of the local header files and syscalls ###
609 dnl ** check for full ANSI header (.h) files
612 dnl ** Enable large file support. NB. do this before testing the type of
613 dnl off_t, because it will affect the result of that test.
616 dnl ** check for specific header (.h) files that we are interested in
617 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
619 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
622 dnl ** do we have long longs?
623 AC_CHECK_TYPES([long long])
625 dnl ** what are the sizes of various types
626 AC_CHECK_SIZEOF(char, 1)
627 AC_CHECK_SIZEOF(double, 8)
628 AC_CHECK_SIZEOF(float, 4)
629 AC_CHECK_SIZEOF(int, 4)
630 AC_CHECK_SIZEOF(long, 4)
631 if test "$ac_cv_type_long_long" = yes; then
632 AC_CHECK_SIZEOF(long long, 8)
634 AC_CHECK_SIZEOF(short, 2)
635 AC_CHECK_SIZEOF(unsigned char, 1)
636 AC_CHECK_SIZEOF(unsigned int, 4)
637 AC_CHECK_SIZEOF(unsigned long, 4)
638 if test "$ac_cv_type_long_long" = yes; then
639 AC_CHECK_SIZEOF(unsigned long long, 8)
641 AC_CHECK_SIZEOF(unsigned short, 2)
642 AC_CHECK_SIZEOF(void *, 4)
644 dnl ** what are alignment constraints on various types
645 FP_CHECK_ALIGNMENT(char)
646 FP_CHECK_ALIGNMENT(double)
647 FP_CHECK_ALIGNMENT(float)
648 FP_CHECK_ALIGNMENT(int)
649 FP_CHECK_ALIGNMENT(long)
650 if test "$ac_cv_type_long_long" = yes; then
651 FP_CHECK_ALIGNMENT(long long)
653 FP_CHECK_ALIGNMENT(short)
654 FP_CHECK_ALIGNMENT(unsigned char)
655 FP_CHECK_ALIGNMENT(unsigned int)
656 FP_CHECK_ALIGNMENT(unsigned long)
657 if test "$ac_cv_type_long_long" = yes; then
658 FP_CHECK_ALIGNMENT(unsigned long long)
660 FP_CHECK_ALIGNMENT(unsigned short)
661 FP_CHECK_ALIGNMENT(void *)
663 FP_CHECK_FUNC([WinExec],
664 [@%:@include <windows.h>], [WinExec("",0)])
666 FP_CHECK_FUNC([GetModuleFileName],
667 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
669 dnl ** check return type of signal handlers
670 dnl Foo: assumes we can use prototypes.
671 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
672 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
673 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
674 dnl #include <signal.h>
678 dnl void (*signal (int, void (*)(int)))(int);
681 dnl [ac_cv_type_signal_handler=void_int],
682 dnl [ac_cv_type_signal_handler=int_void])])
683 dnl if test "$ac_cv_type_signal_handler" = void_int; then
684 dnl AC_DEFINE(VOID_INT_SIGNALS)
687 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
689 if test "$ac_cv_type_signal" = void; then
690 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).])
693 dnl ** check for more functions
694 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
695 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
698 #include <sys/types.h>
699 #include <sys/time.h>
701 struct itimerval tval;
702 tval.it_value.tv_sec = 1;
703 tval.it_value.tv_usec = 0;
704 tval.it_interval = tval.it_value;
705 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
707 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
709 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
710 dnl ** _POSIX_C_SOURCE is defined
711 AC_CHECK_DECLS([ctime_r], , ,
712 [#define _POSIX_SOURCE 1
713 #define _POSIX_C_SOURCE 199506L
716 dnl ** check for mingwex library
717 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
718 AC_SUBST(HaveLibMingwEx)
720 if test $HaveLibMingwEx = YES ; then
721 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
724 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
725 dnl the order of these tests matters: bfd needs liberty
726 AC_CHECK_LIB(iberty, xmalloc)
727 AC_CHECK_LIB(bfd, bfd_init)
729 dnl ** check for math library
730 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
731 if test x"$fp_libm_not_needed" = xdunno; then
732 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
736 dnl ################################################################
737 dnl Check for libraries
738 dnl ################################################################
740 dnl ** check whether we need -ldl to get dlopen()
742 AC_CHECK_LIB(dl, dlopen,
744 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
749 dnl --------------------------------------------------
750 dnl * Miscellaneous feature tests
751 dnl --------------------------------------------------
753 dnl ** can we get alloca?
756 dnl ** Working vfork?
759 dnl ** determine whether or not const works
762 dnl ** are we big endian?
764 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
766 dnl ** check for leading underscores in symbol names
767 FP_LEADING_UNDERSCORE
769 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
773 dnl ** check for Apple-style dead-stripping support
774 dnl (.subsections-via-symbols assembler directive)
777 AC_MSG_CHECKING(for .subsections_via_symbols)
779 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
781 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
782 [Define to 1 if Apple-style dead-stripping is supported.])
786 dnl *** check for GNU non-executable stack note support (ELF only)
787 dnl (.section .note.GNU-stack,"",@progbits)
789 AC_MSG_CHECKING(for GNU non-executable stack support)
791 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
793 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
794 [Define to 1 if GNU non-executable stack notes are supported.])
798 dnl ** check for librt
799 AC_CHECK_LIB(rt, clock_gettime)
800 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
801 FP_CHECK_TIMER_CREATE
803 dnl ** check for Apple's "interesting" long double compatibility scheme
804 AC_MSG_CHECKING(for printf\$LDBLStub)
805 AC_TRY_LINK_FUNC(printf\$LDBLStub,
808 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
809 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
813 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
814 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
818 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
819 if test -n "$GTK_CONFIG"; then
820 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
821 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
823 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
827 AC_SUBST([GTK_CONFIG])
830 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
831 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
832 AC_SUBST(HavePapiLib)
833 AC_SUBST(HavePapiHeader)
835 AC_CHECK_FUNCS(__mingw_vfprintf)
837 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
844 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
845 test "$XsltprocCmd" = ""
847 BUILD_DOCBOOK_HTML=NO
849 BUILD_DOCBOOK_HTML=YES
851 AC_SUBST(BUILD_DOCBOOK_HTML)
853 if test "$DblatexCmd" = ""
859 BUILD_DOCBOOK_PDF=YES
861 AC_SUBST(BUILD_DOCBOOK_PS)
862 AC_SUBST(BUILD_DOCBOOK_PDF)
864 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
865 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
868 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])
869 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
873 # http://savannah.gnu.org/bugs/index.php?1516
874 # $(eval ...) inside conditionals causes errors
875 # with make 3.80, so warn the user if it looks like they're about to
877 # We would use "grep -q" here, but Solaris's grep doesn't support it.
879 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
882 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
883 echo "This version cannot be used to build GHC."
884 echo "Please use GNU make >= 3.81."
892 ----------------------------------------------------------------------
893 Configure completed successfully.
895 Building GHC version : $ProjectVersion
897 Build platform : $BuildPlatform
898 Host platform : $HostPlatform
899 Target platform : $TargetPlatform
902 if test "$BootingFromHc" = "YES"; then
904 Bootstrapping from HC files.
908 Bootstrapping using : $WithGhc
909 which is version : $GhcVersion
914 Using GCC : $WhatGccIsCalled
915 which is version : $GccVersion
918 Happy : $HappyCmd ($HappyVersion)
919 Alex : $AlexCmd ($AlexVersion)
922 dblatex : $DblatexCmd
923 xsltproc : $XsltprocCmd"]
925 if test "$HSCOLOUR" = ""; then
927 HsColour was not found; documentation will not contain source links
936 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
937 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
938 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF"]
940 echo ["----------------------------------------------------------------------
944 For a standard build of GHC (fully optimised with profiling), type (g)make.
946 To make changes to the default build configuration, copy the file
947 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
949 For more information on how to configure your GHC build, see
950 http://hackage.haskell.org/trac/ghc/wiki/Building