# HG changeset patch
# User Chris Cannam
# Date 1381926540 -3600
# Node ID 5f88f517b637e6c2a9b66ae4b9a380a40014832e
# Parent  ef42b60d01004e163e6fe289dc2e36bf20b32ebb
Error if no thread implementation selected

diff -r ef42b60d0100 -r 5f88f517b637 thread/Thread.h
--- a/thread/Thread.h	Wed Oct 16 12:52:44 2013 +0100
+++ b/thread/Thread.h	Wed Oct 16 13:29:00 2013 +0100
@@ -15,6 +15,8 @@
 #else /* !_WIN32 */
 #ifdef USE_PTHREADS
 #include <pthread.h>
+#else
+#error Must have either _WIN32 or USE_PTHREADS defined
 #endif /* USE_PTHREADS */
 #endif /* !_WIN32 */