vulkaninfo: Check if NOMINMAX is already defined

diff --git a/vulkaninfo/vulkaninfo.h b/vulkaninfo/vulkaninfo.h
index 43446c1..21a83cb 100644 (file)
--- a/vulkaninfo/vulkaninfo.h
+++ b/vulkaninfo/vulkaninfo.h
@@ -57,7 +57,9 @@
 #if defined(_WIN32)
 #include <fcntl.h>
 #include <io.h>
+#ifndef NOMINMAX
 #define NOMINMAX
+#endif
 #include <windows.h>
 #if _MSC_VER == 1900
 #pragma warning(disable : 4800)