From 8853a406febe10854a973b598712b0e69076d0d7 Mon Sep 17 00:00:00 2001
From: Andrew Caudwell <acaudwell@gmail.com>
Date: Thu, 26 Jan 2023 09:44:06 +1300
Subject: [PATCH] Call AC_PROG_SED to define SED used for variable substitution
 in man page

Was previously defined as a side effect of the old version of ax_check_gl.m4
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index b220fb9..382fa7e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,6 +12,7 @@ AM_INIT_AUTOMAKE([dist-bzip2 foreign subdir-objects])
 AC_CANONICAL_HOST
 
 # Checks for programs.
+AC_PROG_SED
 AC_PROG_CXX
 AC_LANG(C++)