Cygwin: version.h: document API_VERSION of the first 64 bit build

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

diff --git a/winsup/cygwin/include/cygwin/version.h b/winsup/cygwin/include/cygwin/version.h
index c8b19fc095a1393a078bdcb34c204eea0c0f90ab..8f37f4b25d3b686e8387e65b1d818376e435c874 100644 (file)
--- a/winsup/cygwin/include/cygwin/version.h
+++ b/winsup/cygwin/include/cygwin/version.h
@@ -34,6 +34,9 @@ details. */
 #define CYGWIN_VERSION_USER_API_VERSION_COMBINED \
   CYGWIN_VERSION_PER_PROCESS_API_VERSION_COMBINED (user_data)
 
+/* Please note that the first API_VERSION of the 64 bit build was 0.263.
+   For macros checking for older versions, bisect the git repo. */
+
 #define CYGWIN_VERSION_CHECK_FOR_EXTRA_TM_MEMBERS \
   (CYGWIN_VERSION_USER_API_VERSION_COMBINED >= 272)