Merge pull request zeromq#245 from emwap/patch-1

benjamg · web-flow · commit ba4230d5d03d · 2021-07-09T11:37:53.000+01:00
Allow building with `-Werror=undef`
diff --git a/src/zmqpp/compatibility.hpp b/src/zmqpp/compatibility.hpp
@@ -33,7 +33,7 @@
 #include <zmq.h>
 
 // Include export file if on windows, generated by cmake only
-#if _WIN32
+#ifdef _WIN32
 	#include "zmqpp_export.h"
 #else
 	#define ZMQPP_EXPORT
