-dnl $Id: aclocal.m4,v 1.48 2000/05/31 00:55:10 chak Exp $
+dnl $Id: aclocal.m4,v 1.52 2000/06/30 09:34:09 simonmar Exp $
dnl
dnl Extra autoconf macros for the Glasgow fptools
dnl
])
+dnl *** Does libc contain GNU regex? ***
+dnl
+AC_DEFUN(FPTOOLS_REGEX_IN_LIBC,
+[AC_CACHE_CHECK([for GNU regex in libc], fptools_cv_have_regex,
+[AC_TRY_LINK([#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <regex.h>
+],[ struct re_pattern_buffer patbuf; re_compile_pattern("",0,&patbuf); ],
+fptools_cv_have_regex=yes, fptools_cv_have_regex=no)])
+if test "$fptools_cv_have_regex" = yes; then
+ HaveRegex=YES
+else
+ HaveRegex=NO
+fi
+AC_SUBST(HaveRegex)
+])
+
+
dnl ** check for leading underscores in symbol names
dnl
dnl Test for determining whether symbol names have a leading
rm -fr conftest*
])
+dnl Test for version of installed ghc. Uses $GHC. Largely pinched from c2hs.
+dnl
+AC_DEFUN(FPTOOLS_GHC_VERSION,
+[ AC_CACHE_CHECK([version of ghc], fptools_cv_ghc_version, [
+ fptools_cv_ghc_version=`$GHC --version 2>&1 | sed -e 's/.*\([[0-9]]\)\.\([[0-9]]*\)\([[.-]]\([[0-9]]*\)\)\?.*/\1.\2.\4/'`
+ ])
+ ghc_maj_vers=`echo $fptools_cv_ghc_version | sed -e 's/^\([[0-9]]\).*/\1/'`
+ ghc_min_vers=`echo $fptools_cv_ghc_version | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
+ ghc_patch_level=`echo $fptools_cv_ghc_version | sed -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/'`
+
+ if test "$ghc_patch_level" = ""; then
+ GhcVersion=$ghc_maj_vers.$ghc_min_vers
+ ghc_patch_level="0"
+ else
+ GhcVersion=$ghc_maj_vers.$ghc_min_vers.$ghc_patch_level
+ fi
+
+ GhcMajVersion=$ghc_maj_vers
+ GhcMinVersion=$ghc_min_vers
+ GhcPatchLevel=$ghc_patch_level
+
+ AC_SUBST(GhcVersion)
+ AC_SUBST(GhcMajVersion)
+ AC_SUBST(GhcMinVersion)
+ AC_SUBST(GhcPatchLevel)
+])
+
dnl ** figure out the alignment restriction of a type
dnl (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
dnl so we can't call REQUIRE)
undefine([AC_CV_SIZEOF_NAME])dnl
])
+dnl ** Map an arithmetic C type to a Haskell type.
+dnl Based on autconf's AC_CHECK_SIZEOF.
+
+dnl FPTOOLS_CHECK_HTYPE(TYPE [, DEFAULT_VALUE, [, VALUE-FOR-CROSS-COMPILATION])
+AC_DEFUN(FPTOOLS_CHECK_HTYPE,
+[changequote(<<, >>)dnl
+dnl The name to #define.
+define(<<AC_TYPE_NAME>>, translit(htype_$1, [a-z *], [A-Z_P]))dnl
+dnl The cache variable name.
+define(<<AC_CV_NAME>>, translit(fptools_cv_htype_$1, [ *], [_p]))dnl
+changequote([, ])dnl
+AC_MSG_CHECKING(Haskell type for $1)
+AC_CACHE_VAL(AC_CV_NAME,
+[AC_TRY_RUN([#include <stdio.h>
+#include <stddef.h>
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+
+typedef $1 testing;
+
+main() {
+ FILE *f=fopen("conftestval", "w");
+ if (!f) exit(1);
+ if (((testing)((int)((testing)1.4))) == ((testing)1.4)) {
+ fprintf(f, "%s%d\n",
+ ((testing)(-1) < (testing)0) ? "Int" : "Word",
+ sizeof(testing)*8);
+ } else {
+ fprintf(f,"%s\n",
+ (sizeof(testing) > sizeof(double)) ? "LDouble" :
+ (sizeof(testing) == sizeof(double)) ? "Double" : "Float");
+ }
+ fclose(f);
+ exit(0);
+}], AC_CV_NAME=`cat conftestval`,
+ifelse([$2], , AC_CV_NAME=NotReallyAType, AC_CV_NAME=$2),
+ifelse([$3], , AC_CV_NAME=NotReallyATypeCross, AC_CV_NAME=$3))]) dnl
+AC_MSG_RESULT($AC_CV_NAME)
+AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
+undefine([AC_TYPE_NAME])dnl
+undefine([AC_CV_NAME])dnl
+])
+
dnl ** figure out whether C compiler supports 'long long's
dnl (Closely based on Andreas Zeller's macro for testing
dnl for this under C++)