transport-helper.c: do not overwrite forced bit

diff --git a/git-compat-util.h b/git-compat-util.h
index 9549de6318147839c73b60b1fc72ceb44d9adb47..7776f126d3bd4facfe987bd844a339c8a17b102a 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -86,7 +86,7 @@
 #define _SGI_SOURCE 1
 
 #if defined(WIN32) && !defined(__CYGWIN__) /* Both MinGW and MSVC */
-# if defined (_MSC_VER)
+# if defined (_MSC_VER) && !defined(_WIN32_WINNT)
 #  define _WIN32_WINNT 0x0502
 # endif
 #define WIN32_LEAN_AND_MEAN  /* stops windows.h including winsock.h */