--- fontconfig-2.3.95/src/fccache.c.fix-page-size-overflow	2006-08-11 13:34:08.000000000 -0400
+++ fontconfig-2.3.95/src/fccache.c	2006-08-11 13:34:08.000000000 -0400
@@ -39,6 +39,7 @@
 #define MACHINE_SIGNATURE_SIZE (9 + 5*20 + 1)
 /* for when we don't have sysconf: */
 #define FC_HARDCODED_PAGESIZE 8192 
+#define FC_MAX_PAGESIZE 0xfffff
 
 #ifndef O_BINARY
 #define O_BINARY 0
@@ -1536,10 +1537,28 @@
     static char buf[MACHINE_SIGNATURE_SIZE];
     int32_t magic = ENDIAN_TEST;
     char * m = (char *)&magic;
+    long page_size;
 
-    sprintf (buf, "%2x%2x%2x%2x "
+#if defined (HAVE_SYSCONF)
+    page_size = sysconf(_SC_PAGESIZE);
+#else
+    page_size = -1;
+#endif
+
+    if (page_size < 0)
+	    page_size = FC_HARDCODED_PAGESIZE;
+
+    if (page_size > FC_MAX_PAGESIZE)
+    {
+	    page_size = FC_MAX_PAGESIZE;
+	    fprintf (stderr, "system page size is bigger than expected\n");
+    }
+
+    snprintf (buf, 
+	      sizeof (buf),
+	     "%2x%2x%2x%2x "
 	     "%4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x %4x "
-	     "%4x %4x %4x %4x %4x %4x %4x %4x\n", 
+	     "%4x %4x %4x %4x %4x %4x %4x%5x\n", 
 	     m[0], m[1], m[2], m[3],
 	     (unsigned int)sizeof (char),
 	     (unsigned int)sizeof (char *),
@@ -1560,11 +1579,7 @@
 	     (unsigned int)sizeof (FcCharLeaf),
 	     (unsigned int)sizeof (FcChar32),
 	     (unsigned int)sizeof (FcCache),
-#if defined (HAVE_SYSCONF)
-	     (unsigned int)sysconf(_SC_PAGESIZE));
-#else
-	     (unsigned int)FC_HARDCODED_PAGESIZE);
-#endif
+	     (unsigned int)page_size);
 
     return buf;
 }