From b4b302fe5d54720b58a23568a4270e04ee1ca216 Mon Sep 17 00:00:00 2001
From: Alexei Sheplyakov <varg@theor.jinr.ru>
Date: Fri, 22 Aug 2008 02:42:17 +0400
Subject: [PATCH] Bail out if both autogen and autogen'erated file(s) are
 missing.

This makes the error message(s) more helpful.
---
 ginac/Makefile.am | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ginac/Makefile.am b/ginac/Makefile.am
index 0570fde2..17b272f2 100644
--- a/ginac/Makefile.am
+++ b/ginac/Makefile.am
@@ -45,6 +45,7 @@ $(srcdir)/parser/builtin_fcns.cpp: $(srcdir)/parser/builtin_fcns.def $(srcdir)/p
 	else \
 		echo "*** ERROR: the \"$@\" file does not exist, and AutoGen is not installed on your system"; \
 		echo "***        Please install AutoGen (http://www.gnu.org/software/autogen)"; \
+		exit 1; \
 	fi
 		
 
-- 
2.44.0