From 7ffc0a6534fb66ad27d22984e25bd0789f4404b6 Mon Sep 17 00:00:00 2001
From: Jan Maria Matejka <mq@ucw.cz>
Date: Tue, 14 Aug 2018 14:36:44 +0200
Subject: Bison: A bit more verbose error messages in config.

---
 aclocal.m4 | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'aclocal.m4')

diff --git a/aclocal.m4 b/aclocal.m4
index 28a632c8..c401d447 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -185,9 +185,11 @@ AC_DEFUN([BIRD_CHECK_BISON_VERSION],
       ;;
     2.*)
       bird_bison_synclines=no
+      bird_bison_enhanced_error=no
       ;;
     3.* | 4.* | 5.* | 6.* | 7.* | 8.* | 9.*)
       bird_bison_synclines=yes
+      bird_bison_enhanced_error=yes
       ;;
     *)
       AC_MSG_ERROR([Couldn't parse Bison version $$1. Call the developers for help.])
-- 
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