From 2daa261772870bceb3cf7a616469659da8719948 Mon Sep 17 00:00:00 2001
From: Joseph Smith <joe@uwcreations.com>
Date: Thu, 26 Apr 2018 13:06:04 -0500
Subject: [PATCH] Don't generate interpreter data files if gencode is false

---
 tool/src/org/antlr/v4/Tool.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tool/src/org/antlr/v4/Tool.java b/tool/src/org/antlr/v4/Tool.java
index 5bf4eaaf0..d2c95f525 100644
--- a/tool/src/org/antlr/v4/Tool.java
+++ b/tool/src/org/antlr/v4/Tool.java
@@ -397,7 +397,7 @@ public class Tool {
 
 		if ( generate_ATN_dot ) generateATNs(g);
 
-		if ( g.tool.getNumErrors()==0 ) generateInterpreterData(g);
+		if (gencode && g.tool.getNumErrors()==0 ) generateInterpreterData(g);
 
 		// PERFORM GRAMMAR ANALYSIS ON ATN: BUILD DECISION DFAs
 		AnalysisPipeline anal = new AnalysisPipeline(g);