--- /usr/portage/sci-libs/vtk/vtk-8.1.0-r1.ebuild	2018-02-28 20:08:53.000000000 +0100
+++ /usr/local/portage/sci-libs/vtk/vtk-8.1.0-r1.ebuild	2018-07-24 08:25:28.277018760 +0200
@@ -289,6 +289,10 @@
 src_install() {
 	use web && webapp_src_preinst
 
+	for x in constantly expat freetype hdf5 hyperlink incremental jpeg jsoncpp libharu libxml2 lz4 netcdf oggtheora png tiff Twisted txaio zlib ZopeInterface; do
+		mkdir ${BUILD_DIR}/Wrapping/Python/${x}
+	done
+
 	cmake-utils_src_install
 
 	use java && java-pkg_regjar "${ED%/}"/usr/$(get_libdir)/${PN}.jar