5ef569df5b
In 94cee4a4c201bb506377b2c26e072eee8cb19d6f I overlooked that config.h unconditionally sets _FILE_OFFSET_BITS, so it cannot be used to detect MinGW W64 environment. It looks like Emacs folks already found solution; instead of _FILE_OFFSET_BITS use _W64 as suggested in http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00723.html
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. Please look at the GRUB Wiki <http://grub.enbug.org> for testing procedures. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'