From: Guus Sliepen <guus@meshlink.io>
Date: Fri, 2 Apr 2021 18:59:13 +0000 (+0200)
Subject: Fix warnings from autoconf 2.71.
X-Git-Url: http://git.meshlink.io/?p=meshlink;a=commitdiff_plain;h=88c7869efa0a3054544f0a5bd9386a0e15aeab66

Fix warnings from autoconf 2.71.

This fixes the use of deprecated functions. Also bump the minimum required
version of autoconf to 2.69.
---

diff --git a/configure.ac b/configure.ac
index deea2922..592fb15d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.61)
+AC_PREREQ(2.69)
 AC_INIT([MeshLink], [0.1])
 DX_PS_FEATURE(OFF)
 DX_INIT_DOXYGEN([MeshLink], [$(top_srcdir)/Doxyfile])
@@ -19,12 +19,12 @@ AC_DEFINE([_POSIX_C_SOURCE], 200809L, [Enable POSIX features])
 dnl Checks for programs.
 AM_PROG_CC_C_O
 AM_PROG_AR
-AC_PROG_CC_C99
+AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
-AC_PROG_LIBTOOL
+LT_INIT
 AX_PTHREAD
 
 dnl Check and set OS
@@ -126,7 +126,6 @@ MeshLink_ATTRIBUTE(__malloc__)
 MeshLink_ATTRIBUTE(__warn_unused_result__)
 
 dnl Checks for library functions.
-AC_TYPE_SIGNAL
 AC_CHECK_FUNCS([asprintf fchmod fork gettimeofday random pselect select setns strdup usleep getifaddrs freeifaddrs],
   [], [], [#include "$srcdir/src/have.h"]
 )