Index: LMDZ5/trunk/makelmdz
===================================================================
--- LMDZ5/trunk/makelmdz	(revision 2743)
+++ LMDZ5/trunk/makelmdz	(revision 2746)
@@ -38,4 +38,5 @@
 # guess a default 'arch'
 arch="local" # start with assuming we're on a local machine with local arch file
+arch_defined="TRUE" # and thus also set arch_defined to true 
 ## try to recognise machine and infer arch from it
 machine=`hostname`