--- configure.ac.orig	2008-07-28 16:48:19.000000000 +0200
+++ configure.ac	2008-07-28 16:54:53.000000000 +0200
@@ -22,6 +22,8 @@
 FIND_TOOL([UNZIP], [unzip])
 FIND_TOOL([CPIO], [cpio])
 FIND_TOOL([FILE], [file])
+ALT_OPT_CFLAGS="$(rpm --eval '%optflags' | sed -e 's/-mtune=generic//1')"
+AC_SUBST([ALT_OPT_CFLAGS])
 AC_CHECK_TOOLS([FASTJAR], [fastjar jar])
 if test "x$FASTJAR" = x; then
 	AC_MSG_ERROR([Can't find fastjar or jar])