From c908f37a2352876549ec358450bf79a0a12f1565 Mon Sep 17 00:00:00 2001
From: James Booth <boothj5@gmail.com>
Date: Mon, 5 Sep 2016 22:00:16 +0100
Subject: [PATCH] Fail configure when no pthread support

---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 71039dcb..d0f6ee14 100644
--- a/configure.ac
+++ b/configure.ac
@@ -112,7 +112,7 @@ else
 fi
 
 # threading
-ACX_PTHREAD
+ACX_PTHREAD([], [AC_MSG_ERROR([pthread is required])])
 LIBS="$PTHREAD_LIBS $LIBS"
 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 AS_IF([test "x$PTHREAD_CC" != x], [ CC="$PTHREAD_CC" ])