base/third_party/xdg_mime/compile.patch

--- a/xdgmimecache.c
+++ b/xdgmimecache.c
@@ -40,6 +40,8 @@
 
 #include <netinet/in.h> /* for ntohl/ntohs */
 
+#define HAVE_MMAP 1
+
 #ifdef HAVE_MMAP
 #include <sys/mman.h>
 #else
@@ -1000,5 +1002,3 @@
 	    dump_glob_node (cache, offset + 20 * j, 0);
   }
 }
-
-