+ifneq ($(COPY_INFO_IMAGES),)
+# only Info docs are installed (not HTML nor PDF),
+# so images should be copied
+
+install-info-images:
+# remove $(infodir)/$(INFO_IMAGES_DIR) in case it is a symlink
+ -rm -f $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR)
+ $(INSTALL) -d $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR)
+ rsync -r --include '[0-9a-f][0-9a-f]' --include '*.png' --exclude '*' $(outdir)/ $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR)
+
+uninstall-info-images:
+ rm -f $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR) || rm -rf $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR)
+
+else # if HTML and PDF docs are installed too, symlink image directories
+install-info-images: uninstall-info-images
+ cd $(DESTDIR)$(infodir) && ln -sf $$($(PYTHON) $(buildscript-dir)/relative $(DESTDIR)$(webdir)/$(DEST_INFO_IMAGES_SUBDIR)) $(INFO_IMAGES_DIR)
+
+uninstall-info-images:
+ rm -f $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR) || rm -rf $(DESTDIR)$(infodir)/$(INFO_IMAGES_DIR)
+endif # copying info images
+
+
+ifneq ($(patsubst %/local,%,$(DESTDIR)$(prefix)),/usr)
+## install-info can't do all its job for binary packages' build systems.
+## Best we can do is to notify the builder or packager.