1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/ +/g;'"
3 dnl (or some such) to see the outline of this file)
6 # (c) The University of Glasgow 1994-2004
8 # Configure script template for GHC
10 # Process with 'autoreconf' to get a working configure script.
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
16 AC_INIT([The Glorious Glasgow Haskell Compilation System], [6.13], [glasgow-haskell-bugs@haskell.org], [ghc])
18 # Set this to YES for a released version, otherwise NO
21 # The primary version (e.g. 6.7, 6.6.1) is set in the AC_INIT line
22 # above. If this is not a released version, then we will append the
23 # date to the version number (e.g. 6.7.20070204). The date is
24 # constructed by finding the date of the most recent patch in the
25 # darcs repository. If this is a source distribution (not a darcs
26 # checkout), then we ship a file 'VERSION' containing the full version
27 # when the source distribution was created.
29 if test ! -f mk/config.h.in; then
30 echo "mk/config.h.in doesn't exist: perhaps you haven't run 'sh boot'?"
34 AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args])
36 dnl ----------------------------------------------------------
37 dnl ** Find unixy sort and find commands,
38 dnl ** which are needed by FP_SETUP_PROJECT_VERSION
40 dnl ** Find find command (for Win32's benefit)
43 dnl ** Find sort command (for the benefit of Win32 environs)
46 dnl ----------------------------------------------------------
47 FP_SETUP_PROJECT_VERSION
49 # Hmmm, we fix the RPM release number to 1 here... Is this convenient?
50 AC_SUBST([release], [1])
52 # First off, a distrib sanity check..
53 AC_CONFIG_SRCDIR([mk/config.mk.in])
55 dnl * We require autoconf version 2.52
56 dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
57 dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
60 # -------------------------------------------------------------------------
61 # Prepare to generate the following header files
64 AC_CONFIG_HEADER(mk/config.h)
66 # No, semi-sadly, we don't do `--srcdir'...
67 if test x"$srcdir" != 'x.' ; then
68 echo "This configuration does not support the \`--srcdir' option.."
72 dnl --------------------------------------------------------------
73 dnl * Project specific configuration options
74 dnl --------------------------------------------------------------
75 dnl What follows is a bunch of options that can either be configured
76 dnl through command line options to the configure script or by
77 dnl supplying defns in the build tree's mk/build.mk. Having the option to
78 dnl use either is considered a Feature.
80 dnl ** What command to use to compile compiler sources ?
81 dnl --------------------------------------------------------------
84 [AC_HELP_STRING([--with-ghc=ARG],
85 [Use ARG as the path to GHC [default=autodetect]])],
87 [if test "$GHC" = ""; then
88 AC_PATH_PROG([GHC], [ghc])
92 dnl ** Booting from .hc files?
93 dnl --------------------------------------------------------------
94 AC_ARG_ENABLE(hc-boot,
95 [AC_HELP_STRING([--enable-hc-boot],
96 [Boot the Glasgow Haskell Compiler from intermediate .hc files.
97 (This option is mostly of interest to porters.) [default=no]])],
98 [ if test x"$enableval" = x"yes"; then
106 AC_SUBST(BootingFromHc)
108 AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
109 [AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
110 [Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
111 EnableBootstrapWithDevelSnaphost=YES,
112 EnableBootstrapWithDevelSnaphost=NO
115 if test "$WithGhc" != ""; then
116 FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
118 if test "$GhcMajVersion" = "unknown" -o "$GhcMinVersion" = "unknown"; then
119 AC_MSG_ERROR([Cannot determine the version of $WithGhc. Is it really GHC?])
122 AC_SUBST(GhcVersion)dnl
123 AC_SUBST(GhcMajVersion)dnl
124 AC_SUBST(GhcMinVersion)dnl
125 AC_SUBST(GhcPatchLevel)dnl
126 GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
127 GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
128 if test $GhcCanonVersion -ge 609; then ghc_ge_609=YES; else ghc_ge_609=NO; fi
129 FP_COMPARE_VERSIONS($GhcVersion,[-ge],[6.10.2],
130 [ghc_ge_6102=YES], [ghc_ge_6102=NO])
131 if test $GhcCanonVersion -ge 611; then ghc_ge_611=YES; else ghc_ge_611=NO; fi
132 AC_SUBST(ghc_ge_609)dnl
133 AC_SUBST(ghc_ge_6102)dnl
134 AC_SUBST(ghc_ge_611)dnl
137 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
138 if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
139 if test "$WithGhc" = ""; then
140 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
142 FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.8],
143 [AC_MSG_ERROR([GHC version 6.8 or later is required to compile GHC.])])dnl
145 if test `expr $GhcMinVersion % 2` = "1"; then
146 if test "$EnableBootstrapWithDevelSnaphost" = "NO"; then
148 $WithGhc is a development snapshot of GHC, version $GhcVersion.
149 Bootstrapping using this version of GHC is not supported, and may not
150 work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
151 or --with-ghc to specify a different GHC to use.])
156 # GHC is passed to Cabal, so we need a native path
157 if test "${WithGhc}" != ""
159 ghc_host=`"${WithGhc}" +RTS --info | grep 'Host platform' | sed -e 's/.*, "//' -e 's/")//'`
161 if test "$ghc_host" = "i386-unknown-mingw32"
163 if test "${OSTYPE}" = "msys"
165 WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
167 # Canonicalise to <drive>:/path/to/ghc
168 WithGhc=`cygpath -m "${WithGhc}"`
170 echo "GHC path canonicalised to: ${WithGhc}"
175 dnl ** Without optimization some INLINE trickery fails for GHCi
178 dnl Allow to specify iconv options to the toplevel configure script
179 dnl so they can be properly passed to sub-builds.
180 dnl Note: ICONV_LIB_DIRS and ICONV_INCLUDE_DIRS are not predefined
181 dnl to the empty string to allow them to be overridden from the
184 AC_ARG_WITH([iconv-includes],
185 [AC_HELP_STRING([--with-iconv-includes],
186 [directory containing iconv.h])],
187 [ICONV_INCLUDE_DIRS=$withval])
189 AC_ARG_WITH([iconv-libraries],
190 [AC_HELP_STRING([--with-iconv-libraries],
191 [directory containing iconv library])],
192 [ICONV_LIB_DIRS=$withval])
194 AC_SUBST(ICONV_INCLUDE_DIRS)
195 AC_SUBST(ICONV_LIB_DIRS)
197 dnl--------------------------------------------------------------------
198 dnl * Choose host(/target/build) platform
199 dnl--------------------------------------------------------------------
200 dnl We don't use the standard autoconf macros for this, but instead
201 dnl ask the bootstrapping compiler what platform it is for
203 dnl Guess host/target/build platform(s) if necessary.
204 m4_divert_once([HELP_CANON],
207 --build=BUILD configure for building on BUILD [guessed]
208 --host=HOST cross-compile to build programs to run on HOST [guessed]
209 --target=TARGET configure for building compilers for TARGET [guessed]]])dnl
211 if test "$build" = ""
213 if test "${WithGhc}" != ""
215 build=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
216 echo "Build platform inferred as: $build"
218 echo "Can't work out build platform"
225 if test "${WithGhc}" != ""
227 host=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
228 echo "Host platform inferred as: $host"
230 echo "Can't work out host platform"
235 if test "$target" = ""
237 if test "${WithGhc}" != ""
239 target=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
240 echo "Target platform inferred as: $target"
242 echo "Can't work out target platform"
251 AC_MSG_WARN([GHC does not support the Cygwin target at the moment])
252 AC_MSG_WARN([I'm assuming you wanted to build for i386-unknown-mingw32])
259 i386-apple-darwin|powerpc-apple-darwin)
261 CFLAGS="$CFLAGS -m32"
262 LDFLAGS="$LDFLAGS -m32"
263 CONF_CC_OPTS="$CONF_CC_OPTS -m32"
264 CONF_LD_OPTS="$CONF_LD_OPTS -m32"
268 CFLAGS="$CFLAGS -m64"
269 LDFLAGS="$LDFLAGS -m64"
270 CONF_CC_OPTS="$CONF_CC_OPTS -m64"
271 CONF_LD_OPTS="$CONF_LD_OPTS -m64"
277 alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
280 echo "Unknown arch $1"
288 dec|unknown|hp|apple|next|sun|sgi|ibm)
291 echo "Unknown vendor $1"
299 linux|freebsd|netbsd|openbsd|dragonfly|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix)
302 echo "Unknown OS '$1'"
309 BuildArch=`echo "$build" | sed 's/-.*//'`
310 BuildVendor=`echo "$build" | sed -e 's/.*-\(.*\)-.*/\1/'`
311 BuildOS=`echo "$build" | sed 's/.*-//'`
312 BuildPlatform_CPP=`echo "$BuildPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
313 BuildArch_CPP=` echo "$BuildArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
314 BuildVendor_CPP=` echo "$BuildVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
315 BuildOS_CPP=` echo "$BuildOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
317 checkArch "$BuildArch"
318 checkVendor "$BuildVendor"
322 HostArch=`echo "$host" | sed 's/-.*//'`
323 HostVendor=`echo "$host" | sed -e 's/.*-\(.*\)-.*/\1/'`
324 HostOS=`echo "$host" | sed 's/.*-//'`
325 HostPlatform_CPP=`echo "$HostPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
326 HostArch_CPP=` echo "$HostArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
327 HostVendor_CPP=` echo "$HostVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
328 HostOS_CPP=` echo "$HostOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
330 checkArch "$HostArch"
331 checkVendor "$HostVendor"
334 TargetPlatform=$target
335 TargetArch=`echo "$target" | sed 's/-.*//'`
336 TargetVendor=`echo "$target" | sed -e 's/.*-\(.*\)-.*/\1/'`
337 TargetOS=`echo "$target" | sed 's/.*-//'`
338 TargetPlatform_CPP=`echo "$TargetPlatform" | sed -e 's/\./_/g' -e 's/-/_/g'`
339 TargetArch_CPP=` echo "$TargetArch" | sed -e 's/\./_/g' -e 's/-/_/g'`
340 TargetVendor_CPP=` echo "$TargetVendor" | sed -e 's/\./_/g' -e 's/-/_/g'`
341 TargetOS_CPP=` echo "$TargetOS" | sed -e 's/\./_/g' -e 's/-/_/g'`
343 checkArch "$TargetArch"
344 checkVendor "$TargetVendor"
347 AC_SUBST(BuildPlatform)
348 AC_SUBST(HostPlatform)
349 AC_SUBST(TargetPlatform)
350 AC_SUBST(HostPlatform_CPP)
351 AC_SUBST(BuildPlatform_CPP)
352 AC_SUBST(TargetPlatform_CPP)
354 AC_SUBST(HostArch_CPP)
355 AC_SUBST(BuildArch_CPP)
356 AC_SUBST(TargetArch_CPP)
359 AC_SUBST(BuildOS_CPP)
360 AC_SUBST(TargetOS_CPP)
362 AC_SUBST(HostVendor_CPP)
363 AC_SUBST(BuildVendor_CPP)
364 AC_SUBST(TargetVendor_CPP)
370 [AC_HELP_STRING([--with-hc=ARG],
371 [Use ARG as the path to the compiler for compiling ordinary
372 Haskell code (default= value of --with-ghc)])],
378 AC_PATH_PROGS(NHC,nhc nhc98)
379 AC_PATH_PROG(HBC,hbc)
381 # This uses GHC, so put it after the "GHC is required" check above:
384 if test "$HostOS" = "mingw32"
386 CC="$hardtop/inplace/mingw/bin/gcc.exe"
387 LD="$hardtop/inplace/mingw/bin/ld.exe"
388 NM="$hardtop/inplace/mingw/bin/nm.exe"
389 if ! test -d inplace/mingw ||
390 test inplace/mingw -ot ghc-tarballs/mingw/binutils*.tar.gz ||
391 test inplace/mingw -ot ghc-tarballs/mingw/gcc-core*.tar.gz ||
392 test inplace/mingw -ot ghc-tarballs/mingw/libcrypt*.tar.bz2 ||
393 test inplace/mingw -ot ghc-tarballs/mingw/mingw-runtime*.tar.gz ||
394 test inplace/mingw -ot ghc-tarballs/mingw/perl*.tar.bz2 ||
395 test inplace/mingw -ot ghc-tarballs/mingw/w32api*.tar.gz
397 AC_MSG_NOTICE([Making in-tree mingw tree])
403 tar -zxf ../../ghc-tarballs/mingw/binutils*.tar.gz &&
404 tar -zxf ../../ghc-tarballs/mingw/gcc-core*.tar.gz &&
405 tar -jxf ../../ghc-tarballs/mingw/libcrypt*.tar.bz2 &&
406 tar -zxf ../../ghc-tarballs/mingw/mingw-runtime*.tar.gz &&
407 tar -jxf ../../ghc-tarballs/mingw/perl*.tar.bz2 &&
408 tar -zxf ../../ghc-tarballs/mingw/w32api*.tar.gz &&
409 mv bin/gcc.exe bin/realgcc.exe
411 inplace/mingw/bin/realgcc.exe driver/gcc/gcc.c driver/utils/getLocation.c -Idriver/utils -o inplace/mingw/bin/gcc.exe
412 AC_MSG_NOTICE([In-tree mingw tree created])
416 dnl ** Which gcc to use?
417 dnl --------------------------------------------------------------
418 FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc])
420 WhatGccIsCalled="$CC"
421 AC_SUBST(WhatGccIsCalled)
423 dnl ** Which ld to use?
424 dnl --------------------------------------------------------------
425 FP_ARG_WITH_PATH_GNU_PROG([LD], [ld])
429 dnl ** Which nm to use?
430 dnl --------------------------------------------------------------
431 FP_ARG_WITH_PATH_GNU_PROG([NM], [nm])
435 dnl ** Mac OS X: explicit deployment target
436 dnl --------------------------------------------------------------
437 AC_ARG_WITH([macosx-deployment-target],
438 [AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
439 [Build for Mac OS VERSION and higher (default= version of build host)])],
440 [FP_MACOSX_DEPLOYMENT_TARGET="$withval"
441 if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
442 # ignore everywhere, but on Mac OS
443 AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
444 FP_MACOSX_DEPLOYMENT_TARGET=none
446 [FP_MACOSX_DEPLOYMENT_TARGET=none]
448 FP_CHECK_MACOSX_DEPLOYMENT_TARGET
449 AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
450 AC_SUBST(MACOSX_DEPLOYMENT_SDK)
452 dnl --------------------------------------------------------------
453 dnl End of configure script option section
454 dnl --------------------------------------------------------------
457 dnl --------------------------------------------------------------
458 dnl * General configuration checks
459 dnl --------------------------------------------------------------
461 dnl ** Can the unix package be built?
462 dnl --------------------------------------------------------------
464 if test x"$TargetPlatform" = x"i386-unknown-mingw32"; then
469 AC_SUBST([GhcLibsWithUnix])
474 dnl ** look for `perl', but only in /bin on Windows
477 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
478 if test -z "$PerlCmd"; then
479 echo "You must install the version of Perl shipped with GHC"
480 echo "(or a compatible one) in /bin."
485 AC_PATH_PROG(PerlCmd,perl)
486 if test -z "$PerlCmd"; then
487 echo "You must install perl before you can continue"
488 echo "Perhaps it is already installed, but not in your PATH?"
491 FPTOOLS_CHECK_PERL_VERSION
496 dnl ** does #! path/to/perl work? (sometimes it's too long...)
499 dnl ** check for Python
500 AC_PATH_PROG(PythonCmd,python)
502 dnl ** look for GCC and find out which version
503 dnl Figure out which C compiler to use. Gcc is preferred.
504 dnl If gcc, make sure it's at least 2.1
509 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
512 AC_SUBST(CONF_CC_OPTS)
513 AC_SUBST(CONF_LD_OPTS)
515 dnl ** figure out how to do context diffs
518 dnl Let's make sure install-sh is executable here. If we got it from
519 dnl a darcs repo, it might not be (see bug #978).
521 dnl ** figure out how to do a BSD-ish install
524 dnl If you can run configure, you certainly have /bin/sh
525 AC_DEFINE([HAVE_BIN_SH], [1], [Define to 1 if you have /bin/sh.])
527 dnl ** how to invoke `ar' and `ranlib'
528 FP_PROG_AR_NEEDS_RANLIB
529 FP_PROG_AR_SUPPORTS_INPUT
531 dnl ** Check to see whether ln -s works
535 dnl ** Find the path to sed
536 AC_PATH_PROG(SedCmd,sed)
539 dnl ** check for time command
540 AC_PATH_PROG(TimeCmd,time)
543 dnl if GNU tar is named gtar, look for it first.
544 AC_PATH_PROGS(TarCmd,gtar tar,tar)
546 dnl ** check for patch
547 dnl if GNU patch is named gpatch, look for it first
548 AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
550 AC_PATH_PROG(HSCOLOUR,HsColour)
551 # HsColour is passed to Cabal, so we need a native path
552 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
553 test "${OSTYPE}" != "msys" && \
554 test "${HSCOLOUR}" != ""
556 # Canonicalise to <drive>:/path/to/gcc
557 HSCOLOUR=`cygpath -m ${HSCOLOUR}`
560 dnl ** check for DocBook toolchain
567 dnl ** check for ghc-pkg command
570 dnl ** check for installed happy binary + version
571 dnl (don't do it if we're booting from .hc files though.)
572 if test "$BootingFromHc" = "NO"; then
576 dnl ** check for installed alex binary + version
577 dnl (don't do it if we're booting from .hc files though.)
578 if test "$BootingFromHc" = "NO"; then
582 dnl --------------------------------------------------
583 dnl ### program checking section ends here ###
584 dnl --------------------------------------------------
586 dnl --------------------------------------------------
587 dnl * Platform header file and syscall feature tests
588 dnl ### checking the state of the local header files and syscalls ###
590 dnl ** check for full ANSI header (.h) files
593 dnl ** Enable large file support. NB. do this before testing the type of
594 dnl off_t, because it will affect the result of that test.
597 dnl ** check for specific header (.h) files that we are interested in
598 AC_CHECK_HEADERS([bfd.h ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/mman.h sys/resource.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
600 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
603 dnl ** do we have long longs?
604 AC_CHECK_TYPES([long long])
606 dnl ** what are the sizes of various types
607 AC_CHECK_SIZEOF(char, 1)
608 AC_CHECK_SIZEOF(double, 8)
609 AC_CHECK_SIZEOF(float, 4)
610 AC_CHECK_SIZEOF(int, 4)
611 AC_CHECK_SIZEOF(long, 4)
612 if test "$ac_cv_type_long_long" = yes; then
613 AC_CHECK_SIZEOF(long long, 8)
615 AC_CHECK_SIZEOF(short, 2)
616 AC_CHECK_SIZEOF(unsigned char, 1)
617 AC_CHECK_SIZEOF(unsigned int, 4)
618 AC_CHECK_SIZEOF(unsigned long, 4)
619 if test "$ac_cv_type_long_long" = yes; then
620 AC_CHECK_SIZEOF(unsigned long long, 8)
622 AC_CHECK_SIZEOF(unsigned short, 2)
623 AC_CHECK_SIZEOF(void *, 4)
625 dnl ** what are alignment constraints on various types
626 FP_CHECK_ALIGNMENT(char)
627 FP_CHECK_ALIGNMENT(double)
628 FP_CHECK_ALIGNMENT(float)
629 FP_CHECK_ALIGNMENT(int)
630 FP_CHECK_ALIGNMENT(long)
631 if test "$ac_cv_type_long_long" = yes; then
632 FP_CHECK_ALIGNMENT(long long)
634 FP_CHECK_ALIGNMENT(short)
635 FP_CHECK_ALIGNMENT(unsigned char)
636 FP_CHECK_ALIGNMENT(unsigned int)
637 FP_CHECK_ALIGNMENT(unsigned long)
638 if test "$ac_cv_type_long_long" = yes; then
639 FP_CHECK_ALIGNMENT(unsigned long long)
641 FP_CHECK_ALIGNMENT(unsigned short)
642 FP_CHECK_ALIGNMENT(void *)
644 FP_CHECK_FUNC([WinExec],
645 [@%:@include <windows.h>], [WinExec("",0)])
647 FP_CHECK_FUNC([GetModuleFileName],
648 [@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
650 dnl ** check return type of signal handlers
651 dnl Foo: assumes we can use prototypes.
652 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
653 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
654 dnl [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
655 dnl #include <signal.h>
659 dnl void (*signal (int, void (*)(int)))(int);
662 dnl [ac_cv_type_signal_handler=void_int],
663 dnl [ac_cv_type_signal_handler=int_void])])
664 dnl if test "$ac_cv_type_signal_handler" = void_int; then
665 dnl AC_DEFINE(VOID_INT_SIGNALS)
668 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
670 if test "$ac_cv_type_signal" = void; then
671 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).])
674 dnl ** check for more functions
675 dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
676 AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
679 #include <sys/types.h>
680 #include <sys/time.h>
682 struct itimerval tval;
683 tval.it_value.tv_sec = 1;
684 tval.it_value.tv_usec = 0;
685 tval.it_interval = tval.it_value;
686 return setitimer(ITIMER_VIRTUAL, &tval, (void*)0) != 0;
688 ],[AC_DEFINE([HAVE_SETITIMER_VIRTUAL], [1], [Define to 1 if setitimer accepts ITIMER_VIRTUAL, 0 else.])])
690 dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
691 dnl ** _POSIX_C_SOURCE is defined
692 AC_CHECK_DECLS([ctime_r], , ,
693 [#define _POSIX_SOURCE 1
694 #define _POSIX_C_SOURCE 199506L
697 dnl ** check for mingwex library
698 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
699 AC_SUBST(HaveLibMingwEx)
701 if test $HaveLibMingwEx = YES ; then
702 AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
705 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
706 dnl the order of these tests matters: bfd needs liberty
707 AC_CHECK_LIB(iberty, xmalloc)
708 AC_CHECK_LIB(bfd, bfd_init)
710 dnl ** check for math library
711 AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno])
712 if test x"$fp_libm_not_needed" = xdunno; then
713 AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=])
717 dnl ################################################################
718 dnl Check for libraries
719 dnl ################################################################
721 dnl ** check whether we need -ldl to get dlopen()
723 AC_CHECK_LIB(dl, dlopen,
725 AC_DEFINE([HAVE_LIBDL], [1], [Define to 1 if you need -ldl to get dlopen().])
730 dnl --------------------------------------------------
731 dnl * Miscellaneous feature tests
732 dnl --------------------------------------------------
734 dnl ** can we get alloca?
737 dnl ** Working vfork?
740 dnl ** determine whether or not const works
743 dnl ** are we big endian?
745 FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
747 dnl ** check for leading underscores in symbol names
748 FP_LEADING_UNDERSCORE
750 dnl ** check for ld, whether it has an -x option, and if it is GNU ld
754 dnl ** check for Apple-style dead-stripping support
755 dnl (.subsections-via-symbols assembler directive)
758 AC_MSG_CHECKING(for .subsections_via_symbols)
760 [AC_LANG_PROGRAM([], [__asm__ (".subsections_via_symbols");])],
762 AC_DEFINE([HAVE_SUBSECTIONS_VIA_SYMBOLS],[1],
763 [Define to 1 if Apple-style dead-stripping is supported.])
767 dnl *** check for GNU non-executable stack note support (ELF only)
768 dnl (.section .note.GNU-stack,"",@progbits)
770 AC_MSG_CHECKING(for GNU non-executable stack support)
772 [AC_LANG_PROGRAM([__asm__ (".section .note.GNU-stack,\"\",@progbits");], [0])],
774 AC_DEFINE([HAVE_GNU_NONEXEC_STACK],[1],
775 [Define to 1 if GNU non-executable stack notes are supported.])
779 dnl ** check for librt
780 AC_CHECK_LIB(rt, clock_gettime)
781 AC_CHECK_FUNCS(clock_gettime timer_create timer_settime)
782 FP_CHECK_TIMER_CREATE
784 dnl ** check for Apple's "interesting" long double compatibility scheme
785 AC_MSG_CHECKING(for printf\$LDBLStub)
786 AC_TRY_LINK_FUNC(printf\$LDBLStub,
789 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
790 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
794 AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
795 [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
799 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
800 if test -n "$GTK_CONFIG"; then
801 if $GTK_CONFIG gtk+-2.0 --atleast-version=2.0; then
802 GTK_CONFIG="$GTK_CONFIG gtk+-2.0"
804 AC_MSG_WARN([GTK+ not usable, need at least version 2.0])
808 AC_SUBST([GTK_CONFIG])
811 AC_CHECK_LIB(papi, PAPI_library_init, HavePapiLib=YES, HavePapiLib=NO)
812 AC_CHECK_HEADER([papi.h], [HavePapiHeader=YES], [HavePapiHeader=NO])
813 AC_SUBST(HavePapiLib)
814 AC_SUBST(HavePapiHeader)
816 AC_CHECK_FUNCS(__mingw_vfprintf)
818 if test "$HavePapiLib" = "YES" -a "$HavePapiHeader" = "YES"; then
825 if test "$HAVE_DOCBOOK_XSL" = "NO" ||
826 test "$XsltprocCmd" = ""
828 BUILD_DOCBOOK_HTML=NO
830 BUILD_DOCBOOK_HTML=YES
832 AC_SUBST(BUILD_DOCBOOK_HTML)
834 if test "$DblatexCmd" = ""
840 BUILD_DOCBOOK_PDF=YES
842 AC_SUBST(BUILD_DOCBOOK_PS)
843 AC_SUBST(BUILD_DOCBOOK_PDF)
845 if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
846 AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
849 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 distrib/configure-bin.ac])
850 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
854 # http://savannah.gnu.org/bugs/index.php?1516
855 # $(eval ...) inside conditionals causes errors
856 # with make 3.80, so warn the user if it looks like they're about to
858 # We would use "grep -q" here, but Solaris's grep doesn't support it.
860 if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
863 echo "WARNING: It looks like \"$1\" is GNU make 3.80."
864 echo "This version cannot be used to build GHC."
865 echo "Please use GNU make >= 3.81."
873 ----------------------------------------------------------------------
874 Configure completed successfully.
876 Building GHC version : $ProjectVersion
878 Build platform : $BuildPlatform
879 Host platform : $HostPlatform
880 Target platform : $TargetPlatform
883 if test "$BootingFromHc" = "YES"; then
885 Bootstrapping from HC files.
889 Bootstrapping using : $WithGhc
890 which is version : $GhcVersion
895 Using GCC : $WhatGccIsCalled
896 which is version : $GccVersion
899 Happy : $HappyCmd ($HappyVersion)
900 Alex : $AlexCmd ($AlexVersion)
903 dblatex : $DblatexCmd
904 xsltproc : $XsltprocCmd"]
906 if test "$HSCOLOUR" = ""; then
908 HsColour was not found; documentation will not contain source links
917 Building DocBook HTML documentation : $BUILD_DOCBOOK_HTML
918 Building DocBook PS documentation : $BUILD_DOCBOOK_PS
919 Building DocBook PDF documentation : $BUILD_DOCBOOK_PDF"]
921 echo ["----------------------------------------------------------------------
925 For a standard build of GHC (fully optimised with profiling), type (g)make.
927 To make changes to the default build configuration, copy the file
928 mk/build.mk.sample to mk/build.mk, and edit the settings in there.
930 For more information on how to configure your GHC build, see
931 http://hackage.haskell.org/trac/ghc/wiki/Building