--- frontend/gtkmm/CMakeLists.txt.orig	2019-12-10 18:37:37 UTC
+++ frontend/gtkmm/CMakeLists.txt
@@ -168,9 +168,9 @@ if (NOT INSTALL_TARGETS_ONLY)
 	install(FILES    ${CADABRA_IMAGES_DIR}/256x256/cadabra2-gtk.png   DESTINATION ${ICON_PREFIX}/share/icons/hicolor/256x256/apps)
 	install(FILES    ${CADABRA_IMAGES_DIR}/cadabra2-gtk.svg           DESTINATION ${ICON_PREFIX}/share/icons/hicolor/scalable/apps)
 	install(FILES    ${CADABRA_ROOT_DIR}/config/cadabra2-gtk.desktop  DESTINATION ${ICON_PREFIX}/share/applications)
-	install(CODE     "execute_process(COMMAND touch ${ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor/icon-theme.cache)")
-	install(CODE     "execute_process(COMMAND gtk-update-icon-cache-3.0 {ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor)")
-	install(CODE     "execute_process(COMMAND chmod go+r ${ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor/icon-theme.cache)")
+	#install(CODE     "execute_process(COMMAND touch ${ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor/icon-theme.cache)")
+	#install(CODE     "execute_process(COMMAND gtk-update-icon-cache-3.0 {ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor)")
+	#install(CODE     "execute_process(COMMAND chmod go+r ${ICON_PREFIX_WITH_DESTDIR}/share/icons/hicolor/icon-theme.cache)")
 
 	# Install shared libraries on Windows. 
 	# https://stackoverflow.com/questions/32662215/how-do-you-install-gtk-3-0-on-windows