diff --git a/configure/os/CONFIG.Common.V67-ppc604 b/configure/os/CONFIG.Common.V67-ppc604
index 8fcd4b1c9..1ff014fc9 100644
--- a/configure/os/CONFIG.Common.V67-ppc604
+++ b/configure/os/CONFIG.Common.V67-ppc604
@@ -4,3 +4,5 @@ WIND_BASE = /afs/psi.ch/project/vxworks/VxWorks6.7
 NM = $(GNU_DIR)/powerpc-wrs-vxworks/bin/nm
 WIND_HOME=$(WIND_BASE)
 export WIND_HOME
+
+ARCH_DEP_CFLAGS += -fno-strict-aliasing