Add brief comments.

[apitrace] / compat.h

diff --git a/compat.h b/compat.h
index d49955bf4d5750a7c58f471b4708f481c15c868f..e98f746b30b65042a54c123bd38757627fd56196 100644 (file)
--- a/compat.h
+++ b/compat.h
@@ -25,6 +25,10 @@
  *
  **************************************************************************/
 
+/*
+ * MinGW compatability macros to allow using recent's DXSDK headers.
+ */
+
 #ifdef __MINGW32__
 #define __in /**/
 #define __out /**/