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 $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
129 FP_COMPARE_VERSIONS($GhcVersion,[-ge],[6.10.2],
130 [ghc_ge_6102=YES], [ghc_ge_6102=NO])
131 AC_SUBST(ghc_ge_609)dnl
132 AC_SUBST(ghc_ge_6102)dnl
135 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
136 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
137 if test "$WithGhc" = ""; then
138 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
140 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
141 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
143 if test `expr $GhcMinVersion % 2` = "1"; then
144 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
146 $WithGhc is a development snapshot of GHC, version $GhcVersion.
147 Bootstrapping using this version of GHC is not supported, and may not
148 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
149 or --with-ghc to specify a different GHC to use.])
154 # GHC is passed to Cabal, so we need a native path
155 if test "${WithGhc}" != ""
157 ghc_host=`${WithGhc} +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
159 if test "$ghc_host" = "i386-unknown-mingw32"
161 if test "${OSTYPE}" = "msys"
163 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
165 # Canonicalise to <drive>:/path/to/ghc
166 WithGhc=`cygpath -m ${WithGhc}`
168 echo "GHC path canonicalised to: ${WithGhc}"
173 dnl ** Without optimization some INLINE trickery fails for GHCi
176 dnl Allow to specify iconv options to the toplevel configure script
177 dnl so they can be properly passed to sub-builds.
178 dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined
179 dnl to the empty string to allow them to be overridden from the
182 AC_ARG_WITH([iconv-includes],
183 [AC_HELP_STRING([--with-iconv-includes],
184 [directory containing iconv.h])],
185 [ICONV_INCLUDE_DIRS=$withval])
187 AC_ARG_WITH([iconv-libraries],
188 [AC_HELP_STRING([--with-iconv-libraries],
189 [directory containing iconv library])],
190 [ICONV_LIB_DIRS=$withval])
192 AC_SUBST(ICONV_INCLUDE_DIRS)
193 AC_SUBST(ICONV_LIB_DIRS)
195 dnl--------------------------------------------------------------------
196 dnl * Choose host(/target/build) platform
197 dnl--------------------------------------------------------------------
198 dnl We don't use the standard autoconf macros for this, but instead
199 dnl ask the bootstrapping compiler what platform it is for
201 dnl Guess host/target/build platform(s) if necessary.
202 m4_divert_once([HELP_CANON],
205 --build=BUILD configure for building on BUILD [guessed]
206 --host=HOST cross-compile to build programs to run on HOST [guessed]
207 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
209 if test "$build" = ""
211 if test "${WithGhc}" != ""
213 build=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
214 echo "Build platform inferred as: $build"
216 echo "Can't work out build platform"
223 if test "${WithGhc}" != ""
225 host=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
226 echo "Host platform inferred as: $host"
228 echo "Can't work out host platform"
233 if test "$target" = ""
235 if test "${WithGhc}" != ""
237 target=`${WithGhc} +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
238 echo "Target platform inferred as: $target"
240 echo "Can't work out target platform"
249 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
250 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
257 i386-apple-darwin|powerpc-apple-darwin)
259 CFLAGS="$CFLAGS -m32"
260 LDFLAGS="$LDFLAGS -m32"
261 CONF_CC_OPTS="$CONF_CC_OPTS -m32"
262 CONF_LD_OPTS="$CONF_LD_OPTS -m32"
266 CFLAGS="$CFLAGS -m64"
267 LDFLAGS="$LDFLAGS -m64"
268 CONF_CC_OPTS="$CONF_CC_OPTS -m64"
269 CONF_LD_OPTS="$CONF_LD_OPTS -m64"
275 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
278 echo "Unknown arch $1"
286 dec|unknown|hp|apple|next|sun|sgi|ibm)
289 echo "Unknown vendor $1"
297 linux|freebsd|netbsd|openbsd|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
300 echo "Unknown OS '$1'"
307 BuildArch=`echo "$build" | sed 's/-.*//'`
308 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
309 BuildOS=`echo "$build" | sed 's/.*-//'`
310 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
311 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
312 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
313 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
315 checkArch "$BuildArch"
316 checkVendor "$BuildVendor"
320 HostArch=`echo "$host" | sed 's/-.*//'`
321 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
322 HostOS=`echo "$host" | sed 's/.*-//'`
323 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
324 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
325 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
326 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
328 checkArch "$HostArch"
329 checkVendor "$HostVendor"
332 TargetPlatform=$target
333 TargetArch=`echo "$target" | sed 's/-.*//'`
334 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
335 TargetOS=`echo "$target" | sed 's/.*-//'`
336 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
337 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
338 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
339 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
341 checkArch "$TargetArch"
342 checkVendor "$TargetVendor"
345 AC_SUBST(BuildPlatform)
346 AC_SUBST(HostPlatform)
347 AC_SUBST(TargetPlatform)
348 AC_SUBST(HostPlatform_CPP)
349 AC_SUBST(BuildPlatform_CPP)
350 AC_SUBST(TargetPlatform_CPP)
352 AC_SUBST(HostArch_CPP)
353 AC_SUBST(BuildArch_CPP)
354 AC_SUBST(TargetArch_CPP)
357 AC_SUBST(BuildOS_CPP)
358 AC_SUBST(TargetOS_CPP)
360 AC_SUBST(HostVendor_CPP)
361 AC_SUBST(BuildVendor_CPP)
362 AC_SUBST(TargetVendor_CPP)
368 [AC_HELP_STRING([--with-hc=ARG],
369 [Use ARG as the path to the compiler for compiling ordinary
370 Haskell code (default= value of --with-ghc)])],
376 AC_PATH_PROGS(NHC,nhc nhc98)
377 AC_PATH_PROG(HBC,hbc)
379 dnl ** Which gcc to use?
380 dnl --------------------------------------------------------------
382 [AC_HELP_STRING([--with-gcc=ARG],
383 [Use ARG as the path to GCC [default=autodetect]])],
384 [WhatGccIsCalled="$withval"
385 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
386 test "${OSTYPE}" != "msys" && \
387 test "${withval}" != ""
389 # Canonicalise to <drive>:/path/to/gcc
390 withval=`cygpath -m ${withval}`
395 [WhatGccIsCalled="gcc"]
397 AC_SUBST(WhatGccIsCalled)
399 dnl ** Which ld to use?
400 dnl --------------------------------------------------------------
402 [AC_HELP_STRING([--with-ld=ARG],
403 [Use ARG as the path to LD [default=autodetect]])],
404 [if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
405 test "${OSTYPE}" != "msys" && \
406 test "${withval}" != ""
408 # Canonicalise to <drive>:/path/to/ld
409 withval=`cygpath -m ${withval}`
417 # This uses GHC, so put it after the "GHC is required" check above:
420 dnl ** Enable the construction of Win32 DLLs?
421 dnl --------------------------------------------------------------
423 dnl [ The ability to build the RTS and libraries as separate DLLs used
424 dnl to be supported, but isn't currently (updates to the RTS, compiler
425 dnl and build system would be required to bring it back again.)
426 dnl Hence, exposing it as an option is false advertisement, so better
427 dnl disable it to avoid confusion (but leave it commented-out rather
428 dnl than removed in order to remind ourselves to bring back the
429 dnl feature at some stage.) ]
431 dnl AC_ARG_ENABLE(win32-dlls,
432 dnl [ --enable-win32-dlls
433 dnl If on a Win32 platform running mingw32/cygwin, enable the
434 dnl construction of DLLs containing ghc-compiled code.
437 dnl case $HostOS_CPP in
440 dnl *) echo "Unrecognised win32 platform: $HostPlatform"
444 dnl EnableWin32DLLs=YES
446 dnl [EnableWin32DLLs=NO]
448 dnl AC_SUBST(EnableWin32DLLs)
449 dnl if test x"$EnableWin32DLLs" = "xYES" ; then
450 dnl AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
453 dnl ** Mac OS X: explicit deployment target
454 dnl --------------------------------------------------------------
455 AC_ARG_WITH([macosx-deployment-target],
456 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
457 [Build for Mac OS VERSION and higher (default= version of build host)])],
458 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
459 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
460 # ignore everywhere, but on Mac OS
461 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
462 FP_MACOSX_DEPLOYMENT_TARGET=none
464 [FP_MACOSX_DEPLOYMENT_TARGET=none]
466 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
467 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
468 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
470 dnl --------------------------------------------------------------
471 dnl End of configure script option section
472 dnl --------------------------------------------------------------
475 dnl --------------------------------------------------------------
476 dnl * General configuration checks
477 dnl --------------------------------------------------------------
479 dnl ** Can the unix package be built?
480 dnl --------------------------------------------------------------
482 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
487 AC_SUBST([GhcLibsWithUnix])
492 dnl ** look for `perl', but only in /bin on Windows
495 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
496 if test -z "$PerlCmd"; then
497 echo "You must install the version of Perl shipped with GHC"
498 echo "(or a compatible one) in /bin."
503 AC_PATH_PROG(PerlCmd,perl)
504 if test -z "$PerlCmd"; then
505 echo "You must install perl before you can continue"
506 echo "Perhaps it is already installed, but not in your PATH?"
509 FPTOOLS_CHECK_PERL_VERSION
514 dnl ** does #! path/to/perl work? (sometimes it's too long...)
517 dnl ** check for Python
518 AC_PATH_PROG(PythonCmd,python)
520 dnl ** look for GCC and find out which version
521 dnl Figure out which C compiler to use. Gcc is preferred.
522 dnl If gcc, make sure it's at least 2.1
528 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
531 AC_SUBST(CONF_CC_OPTS)
532 AC_SUBST(CONF_LD_OPTS)
534 dnl ** figure out how to do context diffs
537 dnl Let's make sure install-sh is executable here. If we got it from
538 dnl a darcs repo, it might not be (see bug #978).
540 dnl ** figure out how to do a BSD-ish install
543 dnl If you can run configure, you certainly have /bin/sh
544 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
546 dnl ** how to invoke `ar' and `ranlib'
547 FP_PROG_AR_NEEDS_RANLIB
548 FP_PROG_AR_SUPPORTS_INPUT
550 dnl ** Check to see whether ln -s works
554 dnl ** Find the path to sed
555 AC_PATH_PROG(SedCmd,sed)
558 dnl ** check for time command
559 AC_PATH_PROG(TimeCmd,time)
562 dnl if GNU tar is named gtar, look for it first.
563 AC_PATH_PROGS(TarCmd,gtar tar,tar)
565 dnl ** check for patch
566 dnl if GNU patch is named gpatch, look for it first
567 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
569 AC_PATH_PROG(HSCOLOUR,HsColour)
570 # HsColour is passed to Cabal, so we need a native path
571 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
572 test "${OSTYPE}" != "msys" && \
573 test "${HSCOLOUR}" != ""
575 # Canonicalise to <drive>:/path/to/gcc
576 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
579 dnl ** check for DocBook toolchain
586 dnl ** check for ghc-pkg command
589 dnl ** check for installed happy binary + version
590 dnl (don't do it if we're booting from .hc files though.)
591 if test "$BootingFromHc" = "NO"; then
595 dnl ** check for installed alex binary + version
596 dnl (don't do it if we're booting from .hc files though.)
597 if test "$BootingFromHc" = "NO"; then
601 dnl Check we have an acceptable version of windres
604 dnl --------------------------------------------------
605 dnl ### program checking section ends here ###
606 dnl --------------------------------------------------
608 dnl --------------------------------------------------
609 dnl * Platform header file and syscall feature tests
610 dnl ### checking the state of the local header files and syscalls ###
612 dnl ** check for full ANSI header (.h) files
615 dnl ** Enable large file support. NB. do this before testing the type of
616 dnl off_t, because it will affect the result of that test.
619 dnl ** check for specific header (.h) files that we are interested in
620 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
622 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
625 dnl ** do we have long longs?
626 AC_CHECK_TYPES([long long])
628 dnl ** what are the sizes of various types
629 AC_CHECK_SIZEOF(char, 1)
630 AC_CHECK_SIZEOF(double, 8)
631 AC_CHECK_SIZEOF(float, 4)
632 AC_CHECK_SIZEOF(int, 4)
633 AC_CHECK_SIZEOF(long, 4)
634 if test "$ac_cv_type_long_long" = yes; then
635 AC_CHECK_SIZEOF(long long, 8)
637 AC_CHECK_SIZEOF(short, 2)
638 AC_CHECK_SIZEOF(unsigned char, 1)
639 AC_CHECK_SIZEOF(unsigned int, 4)
640 AC_CHECK_SIZEOF(unsigned long, 4)
641 if test "$ac_cv_type_long_long" = yes; then
642 AC_CHECK_SIZEOF(unsigned long long, 8)
644 AC_CHECK_SIZEOF(unsigned short, 2)
645 AC_CHECK_SIZEOF(void *, 4)
647 dnl ** what are alignment constraints on various types
648 FP_CHECK_ALIGNMENT(char)
649 FP_CHECK_ALIGNMENT(double)
650 FP_CHECK_ALIGNMENT(float)
651 FP_CHECK_ALIGNMENT(int)
652 FP_CHECK_ALIGNMENT(long)
653 if test "$ac_cv_type_long_long" = yes; then
654 FP_CHECK_ALIGNMENT(long long)
656 FP_CHECK_ALIGNMENT(short)
657 FP_CHECK_ALIGNMENT(unsigned char)
658 FP_CHECK_ALIGNMENT(unsigned int)
659 FP_CHECK_ALIGNMENT(unsigned long)
660 if test "$ac_cv_type_long_long" = yes; then
661 FP_CHECK_ALIGNMENT(unsigned long long)
663 FP_CHECK_ALIGNMENT(unsigned short)
664 FP_CHECK_ALIGNMENT(void *)
666 FP_CHECK_FUNC([WinExec],
667 [@%:@include <windows.h>], [WinExec("",0)])
669 FP_CHECK_FUNC([GetModuleFileName],
670 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
672 dnl ** check return type of signal handlers
673 dnl Foo: assumes we can use prototypes.
674 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
675 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
676 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
677 dnl #include <signal.h>
681 dnl void (*signal (int, void (*)(int)))(int);
684 dnl [ac_cv_type_signal_handler=void_int],
685 dnl [ac_cv_type_signal_handler=int_void])])
686 dnl if test "$ac_cv_type_signal_handler" = void_int; then
687 dnl AC_DEFINE(VOID_INT_SIGNALS)
690 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
692 if test "$ac_cv_type_signal" = void; then
693 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).])
696 dnl ** check for more functions
697 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
698 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
701 #include <sys/types.h>
702 #include <sys/time.h>
704 struct itimerval tval;
705 tval.it_value.tv_sec = 1;
706 tval.it_value.tv_usec = 0;
707 tval.it_interval = tval.it_value;
708 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
710 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
712 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
713 dnl ** _POSIX_C_SOURCE is defined
714 AC_CHECK_DECLS([ctime_r], , ,
715 [#define _POSIX_SOURCE 1
716 #define _POSIX_C_SOURCE 199506L
719 dnl ** check for mingwex library
720 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
721 AC_SUBST(HaveLibMingwEx)
723 if test $HaveLibMingwEx = YES ; then
724 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
727 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
728 dnl the order of these tests matters: bfd needs liberty
729 AC_CHECK_LIB(iberty, xmalloc)
730 AC_CHECK_LIB(bfd, bfd_init)
732 dnl ** check for math library
733 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
734 if test x"$fp_libm_not_needed" = xdunno; then
735 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
739 dnl ################################################################
740 dnl Check for libraries
741 dnl ################################################################
743 dnl ** check whether we need -ldl to get dlopen()
745 AC_CHECK_LIB(dl, dlopen,
747 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
752 dnl --------------------------------------------------
753 dnl * Miscellaneous feature tests
754 dnl --------------------------------------------------
756 dnl ** can we get alloca?
759 dnl ** Working vfork?
762 dnl ** determine whether or not const works
765 dnl ** are we big endian?
767 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
769 dnl ** check for leading underscores in symbol names
770 FP_LEADING_UNDERSCORE
772 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
776 dnl ** check for Apple-style dead-stripping support
777 dnl (.subsections-via-symbols assembler directive)
780 AC_MSG_CHECKING(for .subsections_via_symbols)
782 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
784 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
785 [Define to 1 if Apple-style dead-stripping is supported.])
789 dnl *** check for GNU non-executable stack note support (ELF only)
790 dnl (.section .note.GNU-stack,"",@progbits)
792 AC_MSG_CHECKING(for GNU non-executable stack support)
794 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
796 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
797 [Define to 1 if GNU non-executable stack notes are supported.])
801 dnl ** check for librt
802 AC_CHECK_LIB(rt, clock_gettime)
803 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
804 FP_CHECK_TIMER_CREATE
806 dnl ** check for Apple's "interesting" long double compatibility scheme
807 AC_MSG_CHECKING(for printf\$LDBLStub)
808 AC_TRY_LINK_FUNC(printf\$LDBLStub,
811 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
812 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
816 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
817 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
821 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
822 if test -n "$GTK_CONFIG"; then
823 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
824 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
826 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
830 AC_SUBST([GTK_CONFIG])
833 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
834 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
835 AC_SUBST(HavePapiLib)
836 AC_SUBST(HavePapiHeader)
838 AC_CHECK_FUNCS(__mingw_vfprintf)
840 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
847 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
848 test "$XsltprocCmd" = ""
850 BUILD_DOCBOOK_HTML=NO
852 BUILD_DOCBOOK_HTML=YES
854 AC_SUBST(BUILD_DOCBOOK_HTML)
856 if test "$DblatexCmd" = ""
862 BUILD_DOCBOOK_PDF=YES
864 AC_SUBST(BUILD_DOCBOOK_PS)
865 AC_SUBST(BUILD_DOCBOOK_PDF)
867 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
868 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
871 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])
872 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
876 # http://savannah.gnu.org/bugs/index.php?1516
877 # $(eval ...) inside conditionals causes errors
878 # with make 3.80, so warn the user if it looks like they're about to
880 # We would use "grep -q" here, but Solaris's grep doesn't support it.
882 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
885 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
886 echo "This version cannot be used to build GHC."
887 echo "Please use GNU make >= 3.81."
895 ----------------------------------------------------------------------
896 Configure completed successfully.
898 Building GHC version : $ProjectVersion
900 Build platform : $BuildPlatform
901 Host platform : $HostPlatform
902 Target platform : $TargetPlatform
905 if test "$BootingFromHc" = "YES"; then
907 Bootstrapping from HC files.
911 Bootstrapping using : $WithGhc
912 which is version : $GhcVersion
917 Using GCC : $WhatGccIsCalled
918 which is version : $GccVersion
921 Happy : $HappyCmd ($HappyVersion)
922 Alex : $AlexCmd ($AlexVersion)
925 dblatex : $DblatexCmd
926 xsltproc : $XsltprocCmd"]
928 if test "$HSCOLOUR" = ""; then
930 HsColour was not found; documentation will not contain source links
939 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
940 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
941 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF"]
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