Disable _XOPEN_SOURCE on NetBSD 1.x.
diff --git a/Misc/NEWS b/Misc/NEWS
index 9b8fc27..2d790f2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -201,6 +201,8 @@
Build
-----
+- Disable _XOPEN_SOURCE on NetBSD 1.x.
+
- Bug #1578513: Cross compilation was broken by a change to configure.
Repair so that it's back to how it was in 2.4.3.
diff --git a/configure b/configure
index 8b4e544..3f8459d 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 52455 .
+# From configure.in Revision: 52457 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.59 for python 2.5.
#
@@ -1555,6 +1555,11 @@
# Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
OpenBSD/2.* | OpenBSD/3.[0123456789] | OpenBSD/4.[0])
define_xopen_source=no;;
+ # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
+ # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
+ # Marc Recht
+ NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6A-S)
+ define_xopen_source=no;;
# On Solaris 2.6, sys/wait.h is inconsistent in the usage
# of union __?sigval. Reported by Stuart Bishop.
SunOS/5.6)
diff --git a/configure.in b/configure.in
index cd9161b..9d446c6 100644
--- a/configure.in
+++ b/configure.in
@@ -203,6 +203,11 @@
# Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0@:>@)
define_xopen_source=no;;
+ # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
+ # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
+ # Marc Recht
+ NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6[A-S])
+ define_xopen_source=no;;
# On Solaris 2.6, sys/wait.h is inconsistent in the usage
# of union __?sigval. Reported by Stuart Bishop.
SunOS/5.6)