diff -ru a/trunk/Makefile b/trunk/Makefile
--- a/trunk/Makefile	2009-11-20 11:51:37.870130591 +0200
+++ b/trunk/Makefile	2009-11-20 11:54:22.031130942 +0200
@@ -184,7 +184,7 @@
 NSISDIR=misc/nsis
 SDLHDIR=$(MOUNT_DIR)/SDL12
 LIBSDIR=$(MOUNT_DIR)/libs
-TEMPDIR=/tmp
+TEMPDIR?=/tmp
 
 bin_path=$(shell which $(1) 2> /dev/null)