Index: devel/p4/Makefile
===================================================================
--- devel/p4/Makefile	(revision 495790)
+++ devel/p4/Makefile	(working copy)
@@ -29,6 +29,8 @@
 # p4 links libssl and libcrypto statically, so specify :build
 USES=		ssl:build
 
+CFLAGS+=	-I${OPENSSLINC}
+
 PLIST_FILES=	bin/p4
 
 .include <bsd.port.pre.mk>