--- gio/xdgmime/xdgmime.c.orig	2018-05-22 06:42:46.000000000 -0500
+++ gio/xdgmime/xdgmime.c	2018-05-25 22:07:10.000000000 -0500
@@ -255,7 +255,7 @@
 
   xdg_data_dirs = getenv ("XDG_DATA_DIRS");
   if (xdg_data_dirs == NULL)
-    xdg_data_dirs = "/usr/local/share/:/usr/share/";
+    xdg_data_dirs = "@PREFIX@/share/:/usr/share/";
 
   ptr = xdg_data_dirs;