+# $Id: aclocal.m4,v 1.20 1998/03/03 19:04:48 reid Exp $
#
# Extra autoconf macros for the Glasgow fptools
#
#
+# Are we running under the GNU libc? Need -D_GNU_SOURCE to get
+# caddr_t and such.
+#
+AC_DEFUN(AC_GNU_LIBC,
+[AC_CACHE_CHECK([GNU libc], ac_cv_gnu_libc,
+[AC_EGREP_CPP(yes,
+[#include <features.h>
+#ifdef __GLIBC__
+yes
+#endif
+], ac_cv_gnu_libc=yes, ac_cv_gnu_libc=no)])
+if test "$ac_cv_gnu_libc" = yes; then
+ AC_DEFINE(_GNU_SOURCE)
+fi
+])
+
+#
# Has timezone the type time_t or long (HP-UX 10.20 apparently
# has `long'..)
#
AC_DEFUN(AC_UNDERSCORE,
[AC_CHECK_LIB(elf, nlist, LIBS="-lelf $LIBS")dnl
AC_CACHE_CHECK([leading underscore in symbol names], ac_cv_lead_uscore,
-[#
+#
# Hack!: nlist() under Digital UNIX insist on there being an _,
# but symbol table listings show none. What is going on here?!?
#
-if test $HostPlatform = "alpha-dec-osf1"; then
- ac_cv_lead_uscore='no'
-else
+changequote(<<, >>)dnl
+<<
+case $HostPlatform in
+alpha-dec-osf*) ac_cv_lead_uscore='no';;
+*) >>
+changequote([, ])dnl
AC_TRY_RUN([#ifdef HAVE_NLIST_H
#include <nlist.h>
changequote(<<, >>)dnl
#endif
exit(1);
}], ac_cv_lead_uscore=yes, ac_cv_lead_uscore=no, ac_cv_lead_uscore=NO)
-fi
-])
+;;
+esac);
LeadingUnderscore=`echo $ac_cv_lead_uscore | sed 'y/yesno/YESNO/'`
AC_SUBST(LeadingUnderscore)
])
else
ac_cv_happy_version="";
fi;
+if expr "$ac_cv_happy_version" "<" 1.4 > /dev/null 2>&1; then
+ echo
+ echo "Happy version 1.4 or later is required to compile GHC."
+ exit 1;
+fi;
])
HappyVersion=$ac_cv_happy_version;
AC_SUBST(HappyVersion)
ac_cv_have_gcc='no'
else
changequote(, )dnl
- cmd_string="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \1 \\\* 10 + \2/g' `"
+ cmd_string="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \1 \\\* 10 + \2/g' `"
changequote([, ])dnl
if test `eval $cmd_string 2>/dev/null` != "1"; then
echo ''
# Substitutes: GNUCPP and RAWCPP (latter is 'GNUCPP -traditional')
#
AC_DEFUN(AC_PROG_GNUCPP,
-[AC_CACHE_CHECK([how to invoke cpp directly], ac_cv_gnu_cpp,
-[if echo $CPP | grep gcc >/dev/null 2>&1; then
- echo > conftest.c
- gcc -v -E conftest.c >/dev/null 2>conftest.out
- echo '/(\S+(\/|\\\\)cpp)/ && print "[$]1";' > conftest.pl
- # GNUCPP: used in jmake.c (GnuCppCmd) and in mkdependC
- # (where we could do with the usual pre-#defines)
- ac_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
- rm -fr conftest*
-else
- # It is likely that this will go terribly wrong..
- ac_cv_gnu_cpp='cc -E'
-fi
+[AC_CACHE_CHECK([how to invoke GNU cpp directly], ac_cv_gnu_cpp,
+[if test "$HaveGcc" = "YES"; then
+ echo > conftest.c
+ gcc -v -E conftest.c >/dev/null 2>conftest.out
+ # \x5c = backslash
+ echo 'tr/\x5c/\//; /(\S+\/cpp)/ && print "[$]1";' > conftest.pl
+ ac_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out`"
+ rm -fr conftest*
+ else
+ # We need to be able to invoke CPP directly, preferably
+ # with input from stdin (mkdependHS and hscpp depend on
+ # this at the moment).
+ # Take a guess at what to use, this probably won't work.
+ echo Warning: GNU cpp not found, using $CPP
+ ac_cv_gnu_cpp = $CPP
+ fi
])
GNUCPP=$ac_cv_gnu_cpp
-if test "$GNUCPP" = "cc -E"; then
- RAWCPP="$GNUCPP"
-else
- RAWCPP="$GNUCPP -traditional"
-fi
+RAWCPP="$GNUCPP -traditional"
AC_SUBST(GNUCPP)
AC_SUBST(RAWCPP)
])
fi
rm -fr conftest*
])
+
+dnl ** figure out whether types can be word-aligned
+dnl (test based on test in smalltalk-1.1.5 configuration)
+dnl (required SIZEOF test but AC_CHECK_SIZEOF doesn't call PROVIDE
+dnl so we can't call REQUIRE)
+
+dnl GHC_CHECK_ALIGNMENT(TYPE)
+AC_DEFUN(GHC_CHECK_ALIGNMENT,
+[changequote(<<, >>)dnl
+dnl The name to #define.
+define(<<AC_TYPE_NAME>>, translit(alignment_$1, [a-z *], [A-Z_P]))dnl
+dnl The cache variable name.
+define(<<AC_CV_NAME>>, translit(ac_cv_alignment_$1, [ *], [_p]))dnl
+dnl The name of the corresponding size.
+define(<<AC_CV_SIZEOF_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
+changequote([, ])dnl
+AC_MSG_CHECKING(alignment of $1)
+AC_CACHE_VAL(AC_CV_NAME,
+[AC_TRY_RUN([
+main()
+{
+ unsigned int vec[3];
+ $1 test, *testptr;
+
+ test = *($1 *)&vec[1];
+ testptr = ($1 *)&vec[1];
+ *testptr = test;
+
+ exit(0);
+}
+],
+AC_CV_NAME=$ac_cv_sizeof_unsigned_int,
+AC_CV_NAME=$AC_CV_SIZEOF_NAME,
+AC_CV_NAME=$AC_CV_SIZEOF_NAME)])
+AC_MSG_RESULT($AC_CV_NAME)
+AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME)
+AC_PROVIDE($AC_TYPE_NAME)
+undefine([AC_TYPE_NAME])dnl
+undefine([AC_CV_NAME])dnl
+undefine([AC_CV_SIZEOF_NAME])dnl
+])
+
projects / ghc-hetmet.git / blobdiff