1From ffa886a580929f26fd5e5a40c9c5334955c48553 Mon Sep 17 00:00:00 2001
2From: Explorer09 <explorer09@gmail.com>
3Date: Mon, 4 Sep 2017 10:47:33 +0800
4Subject: [PATCH] build: AC_USE_SYSTEM_EXTENSIONS in configure.ac.
5
6This would, e.g. define _GNU_SOURCE in config.h, enabling the
7reallocarray() prototype in glibc 2.26+ on Linux systems with that
8version of glibc.
9
10Fixes #241.
11
12Backported from: 24fd0551333e7eded87b64dd36062da3df2f6380
13Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
14---
15 configure.ac | 2 ++
16 1 file changed, 2 insertions(+)
17
18diff --git a/configure.ac b/configure.ac
19index 55e774b..c879fe1 100644
20--- a/configure.ac
21+++ b/configure.ac
22@@ -25,8 +25,10 @@
23 # autoconf requirements and initialization
24
25 AC_INIT([the fast lexical analyser generator],[2.6.4],[flex-help@lists.sourceforge.net],[flex])
26+AC_PREREQ([2.60])
27 AC_CONFIG_SRCDIR([src/scan.l])
28 AC_CONFIG_AUX_DIR([build-aux])
29+AC_USE_SYSTEM_EXTENSIONS
30 LT_INIT
31 AM_INIT_AUTOMAKE([1.11.3 -Wno-portability foreign check-news std-options dist-lzip parallel-tests subdir-objects])
32 AC_CONFIG_HEADER([src/config.h])
33--
342.14.1
35
36