From 9399d58c13257849179d3c2b3698a2b43bc1b2a0 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Thu, 1 Sep 2022 10:39:23 -0700
Subject: [PATCH] configure: Check for readline() function instead of main

main is not a function found in libreadline, its better to check for a
function thats provided by it.

Upstream-Status: Backport
[https://github.com/FRRouting/frr/commit/9399d58c13257849179d3c2b3698a2b43bc1b2a0]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index b7e17d356..8c1fab0ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1372,7 +1372,7 @@ case "${enable_vtysh}" in
   AC_DEFINE([VTYSH], [1], [VTY shell])
 
   prev_libs="$LIBS"
-  AC_CHECK_LIB([readline], [main], [
+  AC_CHECK_LIB([readline], [readline], [
     LIBREADLINE="-lreadline"
   ], [
     dnl readline failed - it might be incorrectly linked and missing its
-- 
2.37.3