--- a/Makefile	Mon Jan 17 15:17:59 2011 +0200
+++ b/Makefile	Mon Jan 17 21:40:36 2011 +0200
@@ -2,6 +2,17 @@
 #
 # You can do anything with this file without any warranty.
 
+SHELL = /bin/sh
+
+# Disable built in pattern rules.
+MAKEFLAGS += -r
+# Disable built in variables.
+MAKEFLAGS += -R
+# Disable built in suffix rules.
+.SUFFIXES:
+# Default target.
+.DEFAULT_GOAL = all
+
 ################################################################
 # Helper definition.