diff -r db3984e4eb97 -r 6f8f7a5449f6 common/autoconf/configure.ac
--- a/common/autoconf/configure.ac	Thu Jan 10 12:20:16 2013 +0100
+++ b/common/autoconf/configure.ac	Fri Jan 11 10:46:59 2013 +0100
@@ -83,6 +83,9 @@
 BASIC_SETUP_PATHS
 BASIC_SETUP_LOGGING
 
+# Check if it's a pure open build or if custom sources are to be used.
+JDKOPT_SETUP_OPEN_OR_CUSTOM
+
 # These are needed to be able to create a configuration name (and thus the output directory)
 JDKOPT_SETUP_JDK_VARIANT
 JDKOPT_SETUP_JVM_VARIANTS