--- grub-0.97/acinclude.m4.prototypes	2005-12-12 19:07:24.000000000 -0500
+++ grub-0.97/acinclude.m4	2005-12-12 19:07:56.000000000 -0500
@@ -44,6 +44,8 @@
 [AC_MSG_CHECKING([whether ${OBJCOPY} works for absolute addresses])
 AC_CACHE_VAL(grub_cv_prog_objcopy_absolute,
 [cat > conftest.c <<\EOF
+void cmain(void);
+
 void
 cmain (void)
 {