Index: head/graphics/opennurbs/Makefile
===================================================================
--- head/graphics/opennurbs/Makefile
+++ head/graphics/opennurbs/Makefile
@@ -17,13 +17,18 @@
 MAKE_ARGS=	CC="${CC}" CCC="${CXX}"
 
 MAKEFILE=	makefile
-BINEXAMPLESDIR=	${PREFIX}/libexec/openNURBS
-MKFILE=		${EXAMPLESDIR}/bsd.openNURBS.mk
+
+OPTIONS_DEFINE=	EXAMPLES
 
 .include <bsd.port.pre.mk>
 
-.if !exists(${SRC_BASE}/lib/libz)
-IGNORE=	needs SRC_BASE to compile. Install base system sources and try again
+# In r311275 zlib.h was moved to contrib/zlib/zlib.h from lib/libz/zlib.h
+LIBZ=		${SRC_BASE}/contrib/zlib
+.if !exists(${LIBZ}/zlib.h)
+LIBZ:=		${SRC_BASE}/lib/libz
+.  if !exists(${LIBZ}/zlib.h)
+IGNORE=		needs SRC_BASE to compile. Install base system sources and try again
+.  endif
 .endif
 
 .if ${ARCH} != i386
@@ -31,50 +36,25 @@
 .endif
 
 pre-build:
-	${ICONV_CMD} -c -f utf-8 -t ascii ${WRKSRC}/opennurbs_version.h \
-		> ${WRKSRC}/opennurbs_version.h.tmp || ${TRUE}
-	${MV} ${WRKSRC}/opennurbs_version.h.tmp ${WRKSRC}/opennurbs_version.h
-	${MV} ${WRKSRC}/zlib ${WRKSRC}/zlib_
-	${CP} -R ${SRC_BASE}/lib/libz ${WRKSRC}/zlib
+	@${RM} -r ${WRKSRC}/zlib
+	${CP} -R ${LIBZ} ${WRKSRC}/zlib
 
 do-install:
-	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR} \
-		${STAGEDIR}${BINEXAMPLESDIR} \
-		${STAGEDIR}${PREFIX}/include/openNURBS/zlib
+	@${MKDIR} ${STAGEDIR}${PREFIX}/include/openNURBS/zlib
 	${INSTALL_DATA} ${WRKSRC}/libopenNURBS.a ${STAGEDIR}${PREFIX}/lib
+	${INSTALL_DATA} ${WRKSRC}/*.h ${STAGEDIR}${PREFIX}/include/openNURBS
+	${INSTALL_DATA} ${WRKSRC}/zlib/*.h \
+		${STAGEDIR}${PREFIX}/include/openNURBS/zlib
+
+do-install-EXAMPLES-on:
+	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${WRKSRC}/examples_linking_pragmas.h \
 		${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${WRKSRC}/opennurbs.h ${STAGEDIR}${EXAMPLESDIR}
-	${PRINTF} "CFLAGS+=-I${PREFIX}/include/openNURBS -I$$\{.CURDIR\}\n" \
-		> ${STAGEDIR}${MKFILE}
-	@echo "LDADD+=-L${PREFIX}/lib -lm -lopenNURBS" >> ${STAGEDIR}${MKFILE}
-	${PRINTF} ".PATH: $$\{.CURDIR\}/../example_userdata\n" \
-		>> ${STAGEDIR}${MKFILE}
-	echo "NO_MAN=YES" >> ${STAGEDIR}${MKFILE}
-	echo ".include <bsd.prog.mk>" >> ${STAGEDIR}${MKFILE}
-	${PRINTF} "SUBDIR =" > ${STAGEDIR}${EXAMPLESDIR}/Makefile
 .for i in brep read roundtrip userdata write
-	${PRINTF} " example_${i}" >> ${STAGEDIR}${EXAMPLESDIR}/Makefile
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}/example_${i}
-	${INSTALL_DATA} ${WRKSRC}/example_${i}/example_${i}.cpp \
-		${STAGEDIR}${EXAMPLESDIR}/example_${i}/example_${i}.cc
-	echo "PROG_CXX=example_${i}" \
-		> ${STAGEDIR}${EXAMPLESDIR}/example_${i}/Makefile
-	echo "SRCS=example_${i}.cc example_ud.cc" \
-		>> ${STAGEDIR}${EXAMPLESDIR}/example_${i}/Makefile
-	echo ".include \"../bsd.openNURBS.mk\"" \
-		>> ${STAGEDIR}${EXAMPLESDIR}/example_${i}/Makefile
-	${INSTALL_PROGRAM} ${WRKSRC}/example_${i}/example_${i} \
-		${STAGEDIR}${BINEXAMPLESDIR}
+	${INSTALL_PROGRAM} ${WRKSRC}/example_${i}/example_${i} ${STAGEDIR}${EXAMPLESDIR}/example_${i}
+	cd ${WRKSRC}/example_${i} && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR}/example_${i} "-name *\.cpp -or -name *\.h"
 .endfor
-	${INSTALL_DATA} ${WRKSRC}/example_userdata/example_ud.cpp \
-		${STAGEDIR}${EXAMPLESDIR}/example_userdata/example_ud.cc
-	${INSTALL_DATA} ${WRKSRC}/example_userdata/example_ud.h \
-		${STAGEDIR}${EXAMPLESDIR}/example_userdata/example_ud.h
-	${PRINTF} "\n.include <bsd.subdir.mk>\n" \
-		>> ${STAGEDIR}${EXAMPLESDIR}/Makefile
-	${INSTALL_DATA} ${WRKSRC}/*.h ${STAGEDIR}${PREFIX}/include/openNURBS/
-	${INSTALL_DATA} ${WRKSRC}/zlib/*.h \
-		${STAGEDIR}${PREFIX}/include/openNURBS/zlib
 
 .include <bsd.port.post.mk>
Index: head/graphics/opennurbs/files/patch-opennurbs__system.h
===================================================================
--- head/graphics/opennurbs/files/patch-opennurbs__system.h
+++ head/graphics/opennurbs/files/patch-opennurbs__system.h
@@ -1,4 +1,4 @@
---- opennurbs_system.h.orig	2015-08-14 13:19:05 UTC
+--- opennurbs_system.h.orig	2017-02-11 10:13:51 UTC
 +++ opennurbs_system.h
 @@ -219,11 +219,7 @@
  
Index: head/graphics/opennurbs/pkg-plist
===================================================================
--- head/graphics/opennurbs/pkg-plist
+++ head/graphics/opennurbs/pkg-plist
@@ -116,24 +116,17 @@
 include/openNURBS/zlib/zlib.h
 include/openNURBS/zlib/zutil.h
 lib/libopenNURBS.a
-libexec/openNURBS/example_brep
-libexec/openNURBS/example_read
-libexec/openNURBS/example_roundtrip
-libexec/openNURBS/example_userdata
-libexec/openNURBS/example_write
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/bsd.openNURBS.mk
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_brep/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_brep/example_brep.cc
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_read/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_read/example_read.cc
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_roundtrip/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_roundtrip/example_roundtrip.cc
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_ud.cc
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_brep/example_brep
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_brep/example_brep.cpp
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_read/example_read
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_read/example_read.cpp
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_roundtrip/example_roundtrip
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_roundtrip/example_roundtrip.cpp
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_ud.cpp
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_ud.h
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_userdata.cc
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_write/Makefile
-%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_write/example_write.cc
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_userdata
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_userdata/example_userdata.cpp
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_write/example_write
+%%PORTEXAMPLES%%%%EXAMPLESDIR%%/example_write/example_write.cpp
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/examples_linking_pragmas.h
 %%PORTEXAMPLES%%%%EXAMPLESDIR%%/opennurbs.h