From a3e3d734a7d138d8bae6014a71cdda07a70901a5 Mon Sep 17 00:00:00 2001
From: Chris Packham <judge.packham@gmail.com>
Date: Wed, 8 Jun 2022 20:43:29 +1200
Subject: configure.ac: bison is required for kconf

Make the requirement for bison harder (but not strict). The system bison
will be used to build kconf. If the system bison is not GNU bison 2.7 or
later crosstool-ng will build GNU bison as a companion tool if necessary
(for glibc 2.29 or newer).

Fixes #1621
Signed-off-by: Chris Packham <judge.packham@gmail.com>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 312f5e58..9d0df964 100644
--- a/configure.ac
+++ b/configure.ac
@@ -267,7 +267,7 @@ CTNG_PROG_VERSION([PYTHON],
     [^Python 3\.([4-9]|[1-9][0-9]+)\.],
     [python_3_4_or_newer])
 
-CTNG_PROG_VERSION([BISON],
+CTNG_PROG_VERSION_REQ_ANY([BISON],
     [bison >= 2.7],
     [bison],
     [bison],
-- 
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