This prevents the creation of a temporary file outside the root directory

--- ./configure~	2007-08-27 18:53:31.000000000 +0200
+++ ./configure	2007-08-27 18:54:52.000000000 +0200
@@ -3557,6 +3557,8 @@
     ac_cv_sys_long_file_names=no
     rm -rf $ac_xdir 2>/dev/null
     break
+  else
+    break
   fi
   rm -rf $ac_xdir 2>/dev/null
 done