diff --git a/eval.cc b/eval.cc
index 636845dd8..2a34deb1e 100644
--- a/eval.cc
+++ b/eval.cc
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: eval.cc,v 1.41 2006/05/17 16:49:30 steve Exp $"
+#ident "$Id: eval.cc,v 1.42 2006/05/19 04:07:24 steve Exp $"
 #endif
 
 # include "config.h"
@@ -153,9 +153,6 @@ verinum* PEConcat::eval_const(const Design*des, NetScope*scope) const
 
 	    verinum*tmp = parms_[idx]->eval_const(des, scope);
 	    if (tmp == 0) {
-		  cerr << get_line() << ": error: "
-		       << "Unable to evaluate constant expression in concat: "
-		       << *parms_[idx] << endl;
 		  delete accum;
 		  return 0;
 	    }
@@ -279,6 +276,9 @@ verinum* PEUnary::eval_const(const Design*des, NetScope*scope) const
 
 /*
  * $Log: eval.cc,v $
+ * Revision 1.42  2006/05/19 04:07:24  steve
+ *  eval_const is not strict.
+ *
  * Revision 1.41  2006/05/17 16:49:30  steve
  *  Error message if concat expression cannot evaluate.
  *