XER support


git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@365 59561ff5-6e30-0410-9f3c-9617f08c8826
diff --git a/skeletons/constraints.c b/skeletons/constraints.c
index 862d8f1..d95e3cb 100644
--- a/skeletons/constraints.c
+++ b/skeletons/constraints.c
@@ -1,3 +1,4 @@
+#include <asn_internal.h>
 #include <constraints.h>
 #include <constr_TYPE.h>