1 files changed, 2 insertions, 0 deletions
diff --git a/example.c b/example.c
index cc021e4..da01d7a 100644
--- a/example.c
+++ b/example.c
@@ -315,6 +315,8 @@ int main(int argc,char** argv)
   /* this is the blocking event loop, i.e. it never returns */
   /* 40000 are the microseconds, i.e. 0.04 seconds */
   rfbRunEventLoop(rfbScreen,40000,FALSE);
+#elif !defined(HAVE_PTHREADS)
+#error "I need pthreads for that."
 #endif
 
   /* this is the non-blocking event loop; a background thread is started */