Index: head/Mk/Uses/localbase.mk
===================================================================
--- head/Mk/Uses/localbase.mk	(revision 394860)
+++ head/Mk/Uses/localbase.mk	(revision 394861)
@@ -1,18 +1,22 @@
 # $FreeBSD$
 #
 # handle enforcing localbase in path
 #
 # Feature:	localbase
 # Usage:	USES=localbase
 # Valid ARGS:	none
 #
 # MAINTAINER:	portmgr@FreeBSD.org
 
 .if !defined(_INCLUDE_USES_LOCALBASE_MK)
 _INCLUDE_USES_LOCALBASE_MK=	yes
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 CFLAGS+=	-I${LOCALBASE}/include
 CXXFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
+
+# Use CONFIGURE_ENV instead of CMAKE_ARGS because devel/cmake itself also needs
+# this, and CMAKE_ARGS is not used when bootstrapping CMake.
+CONFIGURE_ENV+=	CMAKE_PREFIX_PATH="${LOCALBASE}"
 .endif