From 9af3df4e9d1ecfc070fe79d0cd20e035986b33b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Revol?= <revol@free.fr>
Date: Tue, 22 Jul 2014 21:59:31 +0200
Subject: [PATCH] Simplify network libraries detection with AC_SEARCH_LIBS

AC_SEARCH_LIBS first tries to link without any lib, then tries each
library, and sets $LIBS correctly in any case.

cf.
https://www.flameeyes.eu/autotools-mythbuster/autoconf/finding.html
---
 configure.ac | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2a7bee0d..360af621 100644
--- a/configure.ac
+++ b/configure.ac
@@ -197,17 +197,9 @@ case "$host_os" in
 esac
 
 
-AC_CHECK_FUNC(socket, [], [
-	AC_CHECK_LIB(socket, socket, [
-		LIBS="$LIBS -lsocket"
-	])
-])
+AC_SEARCH_LIBS([socket], [socket])
 
-AC_CHECK_FUNC(inet_addr, [], [
-	AC_CHECK_LIB(nsl, inet_addr, [
-		LIBS="$LIBS -lnsl"
-	])
-])
+AC_SEARCH_LIBS([inet_addr], [nsl])
 
 dnl * gcc specific options
 if test "x$ac_cv_prog_gcc" = "xyes"; then