tools/flex/patches/200-build-AC_USE_SYSTEM_EXTENSIONS-in-configure.ac.patch

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