fix compile on mingw-w64.

diff --git a/ext/solv_xfopen.h b/ext/solv_xfopen.h
index 24b68252317e9a19bc4212f430fe4fd177cd5157..92255361ad40a574cd7e88c41fa39af1fb648020 100644 (file)
--- a/ext/solv_xfopen.h
+++ b/ext/solv_xfopen.h
@@ -10,7 +10,7 @@
 
 #include <stddef.h>
 
-#ifdef _WIN32
+#ifdef _MSC_VER
   #include <BaseTsd.h>
   typedef SSIZE_T ssize_t;
 #else