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 \(egcs-\)*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 20 \\\< \2 \\\* 10 + \3/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
+ echo '/(\S+(\/|\\)cpp)/ && print "[$]1";' > conftest.pl
+ ac_cv_gnu_cpp="`eval $PerlCmd -n conftest.pl conftest.out | tr '\\\' / `"
+ 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)
])