diff -ruN /usr/ports/net/xrdp/Makefile net/xrdp/Makefile
--- /usr/ports/net/xrdp/Makefile	2013-01-09 07:46:44.000000000 +0000
+++ net/xrdp/Makefile	2013-01-29 18:20:28.138608920 +0000
@@ -27,6 +27,7 @@
 CONFIGURE_ARGS=	--localstatedir=/var
 LDFLAGS+=	-L${LOCALBASE}/lib
 CPPFLAGS+=	-I${LOCALBASE}/include
+CONFLICTS=	xrdp-devel-[0-9]*
 
 USE_LDCONFIG=	${PREFIX}/lib/xrdp