diff --git a/BaseBuild/Basesys/glibc b/BaseBuild/Basesys/glibc
index 2355ef0..9aa3999 100644
--- a/BaseBuild/Basesys/glibc
+++ b/BaseBuild/Basesys/glibc
@@ -119,6 +119,9 @@ mk() {
 			    --disable-profile \
 			    --enable-add-ons \
 			    --enable-kernel=2.6.0 
+	if [ ! ${MK64BIT} == "true" ]; then
+		echo "CFLAGS += -march=$ARCH -mtune=generic -g -O2" >configparms
+	fi
 	make -j $NUMCPU
 	make -j $NUMCPU install_root=$TMPROOT install
 	make -j $NUMCPU install_root=$TMPROOT localedata/install-locales