--- //depot/vendor/freebsd_6/src/sys/conf/kmod.mk	2006/09/13 02:28:28
+++ //depot/yahoo/ybsd_6/src/sys/conf/kmod.mk	2007/06/16 08:03:34
@@ -81,6 +82,11 @@
 CFLAGS+=	-D_KERNEL
 CFLAGS+=	-DKLD_MODULE
 
+ISPAE!= sysctl -n kern.features.pae 2>&1 || true
+.if ${ISPAE} == 1
+CFLAGS+=	-DPAE
+.endif
+
 # Don't use any standard or source-relative include directories.
 .if ${CC} == "icc"
 NOSTDINC=	-X