Index: head/science/libkml/Makefile
===================================================================
--- head/science/libkml/Makefile	(revision 462292)
+++ head/science/libkml/Makefile	(revision 462293)
@@ -1,44 +1,44 @@
 # Created by: Wen Heping <wen@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	libkml
 PORTVERSION=	1.3.0
 PORTREVISION=	7
 CATEGORIES=	science
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Reference implementation of OGC KML 2.2
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_powerpc64=	fails to compile: iomem_simple.h: redefinition of typedef 'open_file_func'
 
 BUILD_DEPENDS=	boost-libs>=1.44.0:devel/boost-libs \
 		googletest>=1.7.0:devel/googletest \
 		minizip>=1.2.8:archivers/minizip
 LIB_DEPENDS=	libboost_thread.so:devel/boost-libs \
 		libexpat.so:textproc/expat2 \
 		libgtest.so:devel/googletest \
 		libminizip.so:archivers/minizip \
 		liburiparser.so:net/uriparser
 
 OPTIONS_DEFINE=	EXAMPLES
 
 CMAKE_OFF=	WITH_JAVA WITH_PYTHON WITH_SWIG
 USE_CXXSTD=	gnu++98
 USE_LDCONFIG=	yes
 USES=		cmake pathfix
 
 PORTEXAMPLES=	*
 
 USE_GITHUB=	yes
 
-EXAMPLES_CMAKE_OFF=	-DBUILD_EXAMPLES=OFF -DINSTALL_EXAMPLES=OFF
-EXAMPLES_CMAKE_ON=	-DBUILD_EXAMPLES=ON -DINSTALL_EXAMPLES=ON -DKML_EXAMPLES_DIR=${EXAMPLESDIR}
+EXAMPLES_CMAKE_BOOL=	BUILD_EXAMPLES INSTALL_EXAMPLES
+EXAMPLES_CMAKE_ON=	-DKML_EXAMPLES_DIR=${EXAMPLESDIR}
 EXAMPLES_LIB_DEPENDS=	libcurl.so:ftp/curl
 
 post-patch-EXAMPLES-on:
 	@${REINPLACE_CMD} -e 's|DESTINATION examples/|DESTINATION $${KML_EXAMPLES_DIR}/|' ${WRKSRC}/examples/*/CMakeLists.txt
 
 .include <bsd.port.mk>