vsnprintf() must be _vsnprintf() for MSVC

diff --git a/winboard/config.h b/winboard/config.h
index 4ec13b0..f6542c4 100644 (file)
--- a/winboard/config.h
+++ b/winboard/config.h
@@ -154,4 +154,5 @@
 \r
 #ifdef _MSC_VER\r
 #define snprintf _snprintf\r
+#define vsnprintf _vsnprintf\r
 #endif\r