Increase the number of buckets in the shared string hash table.
diff -U8 fontconfig-2.8.0/src/fcpat.c fontconfig-2.8.0/src/fcpat.c
--- fontconfig-2.8.0/src/fcpat.c	2010-03-03 19:05:43.000000000 +1300
+++ fontconfig-2.8.0/src/fcpat.c	2010-03-03 19:30:05.000000000 +1300
@@ -1018,17 +1018,17 @@
     }
     return ret;
 
 bail0:
     FcPatternDestroy (ret);
     return NULL;
 }
 
-#define OBJECT_HASH_SIZE    31
+#define OBJECT_HASH_SIZE    251
 static struct objectBucket {
     struct objectBucket	*next;
     FcChar32		hash;
     int			ref_count;
 } *FcObjectBuckets[OBJECT_HASH_SIZE];
 
 FcBool
 FcSharedStrFree (const FcChar8 *name)