Fix startup issues with >=librsvg-2.42.3
https://bugs.gentoo.org/697514
https://bugs.launchpad.net/gweled/+bug/1869038
--- a/src/sge_utils.c
+++ b/src/sge_utils.c
@@ -19,4 +19,5 @@
  */
 
+#include <gio/gio.h>
 #include <gtk/gtk.h>
 #include <librsvg/rsvg.h>
@@ -30,5 +31,6 @@
 	gchar *full_pathname;
 	GdkPixbuf *pixbuf = NULL;
-	GError *error;
+	GError *error = NULL;
+	GFile *file;
 
 	full_pathname = g_strconcat(DATADIR "/pixmaps/",
@@ -38,11 +40,23 @@
 		pixbuf = rsvg_pixbuf_from_file_at_size (full_pathname, width,
 						   height, &error);
-		g_free (full_pathname);
+		if (pixbuf == NULL) {
+			// Some versions of librsvg need URI instead of path.
+			// https://gitlab.gnome.org/GNOME/librsvg/issues/198
+			g_clear_error (&error);
+			file = g_file_new_for_path (full_pathname);
+			g_free (full_pathname);
+			full_pathname = g_file_get_uri (file);
+			g_object_unref (file);
+			pixbuf = rsvg_pixbuf_from_file_at_size (full_pathname, width,
+							   height, &error);
+		}
 		if (pixbuf == NULL)
-			g_free (error);
+			g_error_free (error);
 
 	} else
 		g_warning ("%s not found", filename);
 
+	g_free (full_pathname);
+
 	return pixbuf;
 }