nginx-0.1.13-RELEASE import

    *) Feature: the server_names_hash and server_names_hash_threshold
       directives.

    *) Bugfix: the *.domain.tld names in the "server_name" directive did
       not work.

    *) Bugfix: the %request_length log parameter logged the incorrect
       length.
diff --git a/auto/options b/auto/options
index 834ca01..30ec352 100644
--- a/auto/options
+++ b/auto/options
@@ -209,9 +209,7 @@
 fi
 
 
-if test -z "$NGX_PREFIX"; then
-    NGX_PREFIX=/usr/local/nginx
-fi
+NGX_PREFIX=${NGX_PREFIX:-/usr/local/nginx}
 
 
 case ".$NGX_SBIN_PATH" in