* configure.ac: Fix the test for cross-compiling.
* genmk.rb (Program): Use `$(CC)' instead of `$(BUILD_CC)'. Don't
define GRUB_UTIL anymore.
* util/powerpc/ieee1275/grub-mkimage.c (load_note): Endian fixes
so this function works on other systems than just big endian.
(load_modules): Likewise.
(add_segments): Likewise.