on Windows): applied required patches on top of the 4.1.12
  release (will be published as 4.1.12a for Windows)


myisammrg/myrg_open.c:
  - Backport of the patch to fix BUG#10687 (Merge engine fails 
    under Windows): use fn_format to convert pathnames if the files 
    in the merge file have a pathname
mysys/my_getwd.c:
  - Backport of the patch to fix BUG#10687 (Merge engine fails 
    on Windows): Added test to see if FN_LIBCHAR != '/' before
    doing comparison to avoid redundant comparison
sql/ha_myisammrg.cc:
  - Backport of the patch to fix BUG#10687 (Merge engine fails 
    on Windows): added extra debug output