diff --git a/mozilla/configure b/mozilla/configure
index 4d4c8845d29..e61111a75dc 100755
--- a/mozilla/configure
+++ b/mozilla/configure
@@ -9051,7 +9051,7 @@ fi
 echo "$ac_t""$ac_cv_func_memcmp_clean" 1>&6
 test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
 
-for ac_func in random strerror lchown fchmod snprintf statvfs memmove rint
+for ac_func in random strerror lchown fchmod snprintf statvfs memmove rint stat64 lstat64
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
 echo "configure:9058: checking for $ac_func" >&5