diff -up perftest-2.0/configure.ac.cflags perftest-2.0/configure.ac
--- perftest-2.0/configure.ac.cflags	2013-12-02 16:56:54.570298258 -0500
+++ perftest-2.0/configure.ac	2013-12-02 16:55:33.043984859 -0500
@@ -42,6 +42,5 @@ fi
 
 AC_SUBST([LIBUMAD])
 AC_SUBST([LIBMATH])
-CFLAGS="-g -Wall -D_GNU_SOURCE -O2"
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT