From 2dc1e771741fd0579a309548c712bbfe3ff6ca92 Mon Sep 17 00:00:00 2001
From: Andrew Johnson <anj@aps.anl.gov>
Date: Thu, 17 Mar 2005 15:29:51 +0000
Subject: [PATCH] Added dbRecordsOnceOnly variable, to allow users to disable
 the ability to define record fields more than once.  Unusual, but
 occasionally useful.

---
 src/dbStatic/dbLexRoutines.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/dbStatic/dbLexRoutines.c b/src/dbStatic/dbLexRoutines.c
index 190264a4b..7e90ed870 100644
--- a/src/dbStatic/dbLexRoutines.c
+++ b/src/dbStatic/dbLexRoutines.c
@@ -40,6 +40,7 @@
 
 /*global declarations*/
 epicsShareDef char *makeDbdDepends=0;
+epicsShareDef int dbRecordsOnceOnly=0;
 
 /*private routines */
 static void yyerrorAbort(char *str);
@@ -914,6 +915,9 @@ static void dbRecordHead(char *recordType,char *name, int visible)
 	    yyerror("already defined for different record type");
 	    duplicate = TRUE;
 	    return;
+	} else if (dbRecordsOnceOnly) {
+	    yyerror("already defined and dbRecordsOnceOnly set");
+	    duplicate = TRUE;
 	}
     } else if(status) {
 	errMessage(status,"new record instance error");