diff -ur gnumach-20040222/aclocal.m4 gnumach-20040222-ac-fixed/aclocal.m4
--- gnumach-20040222/aclocal.m4	1999-04-30 17:34:20.000000000 -0700
+++ gnumach-20040222-ac-fixed/aclocal.m4	2004-02-28 16:59:31.000000000 -0800
@@ -12,10 +12,9 @@
 fi
 
 AC_PROG_CC_WORKS_LOCAL
-AC_PROG_CC_GNU
+AC_PROG_CC
 
-if test $ac_cv_prog_gcc = yes; then
-  GCC=yes
+if test "$GCC" == "yes"; then
 dnl Check whether -g works, even if CFLAGS is set, in case the package
 dnl plays around with CFLAGS (such as to build both debugging and
 dnl normal versions of a library), tasteless as that idea is.
@@ -56,7 +55,7 @@
 [AC_MSG_CHECKING([whether the C compiler ($CC $CFLAGS $LDFLAGS) works])
 AC_LANG_SAVE
 AC_LANG_C
-AC_TRY_COMPILER([main(){return(0);}], ac_cv_prog_cc_works, ac_cv_prog_cc_cross)
+AC_TRY_COMPILE([], [main(){return(0);}], [ac_cv_prog_cc_works=yes], [ac_cv_prog_cc_works=no] )
 AC_LANG_RESTORE
 AC_MSG_RESULT($ac_cv_prog_cc_works)
 if test $ac_cv_prog_cc_works = no; then