--- src/Makefile.orig	2014-04-04 23:24:59.000000000 +0200
+++ src/Makefile	2014-05-06 14:31:07.000000000 +0200
@@ -24,6 +24,15 @@
 stdarg.h:
 	@ln -s machine/stdarg.h stdarg.h
 
+SRCS+=		opt_global.h
+.if ${MACHINE_ARCH} == "i386" && !defined(KERNBUILDDIR)
+PAE!=		sed -n '/define NV_SUPPORT_PAE/p' nv-freebsd.h
+.if !empty(PAE)
+opt_global.h:
+		echo "#define PAE 1" > ${.TARGET}
+.endif
+.endif
+
 *.c: stdarg.h
 
 beforeinstall:	${KMOD}.ko