Fix build for systems that don't provide POSIX.1-2001 by default

[empserver] / src / client / configure.ac

diff --git a/src/client/configure.ac b/src/client/configure.ac
index 00aac39ec46c0efa034a83a10f4a5a039aeb93c3..76268544322adde27c317a22fb4dc67e6bab886d 100644 (file)
--- a/src/client/configure.ac
+++ b/src/client/configure.ac
@@ -44,6 +44,9 @@ AC_INIT([Wolfpack Empire Client],
 AC_CONFIG_SRCDIR([empire.6])
 AC_CONFIG_HEADERS([config.h])
 
+AC_DEFINE([_XOPEN_SOURCE], [600],
+         [Request POSIX-1.2001 with XSI Extension])
+
 
 ### Checks for programs.
 AC_PROG_CC