From b1c72389c326aa4280e95848b24e5e2e4281ce11 Mon Sep 17 00:00:00 2001
From: matthieu <matthieu@openbsd.org>
Date: Sun, 14 Oct 2012 08:58:45 +0000
Subject: [PATCH] Link Xorg with -lpthread, for the llvm-pipe drm. Requested by
 mpi@

Tested that it doesn't have any performance impact. ok ajacoutot@,
matthew@ (some months ago).
---
 xserver/configure.ac | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/xserver/configure.ac b/xserver/configure.ac
index 426834300..773b9dbf9 100644
--- a/xserver/configure.ac
+++ b/xserver/configure.ac
@@ -1144,6 +1144,14 @@ if test "x$DRI2" = xyes; then
 fi
 AM_CONDITIONAL(DRI2_AIGLX, test "x$DRI2_AIGLX" = xyes)
 
+# link Xorg with pthreads for llvm-pipe driver on OpenBSD
+if test "x$DRI2" = xyes; then
+	case $host_os in
+	openbsd*)
+		XORG_SYS_LIBS="-lpthread"
+		;;
+	esac
+fi
 
 AM_CONDITIONAL(XINERAMA, [test "x$XINERAMA" = xyes])
 if test "x$XINERAMA" = xyes; then