Previously, aggressive loop optimizations with a new compiler were not
possible due to undefined behaviour at end of arrays.
A macro "UBFIX" is added to allow ifdefs for fixes which resolve
undefined behavior. For example newer GCC versions will detect various
bugs in the original game code and will otherwise not compile with -Werror.
gcc has this nice option "-print-file-name=" to locate a file
in its search path. This is a more portable way to locate
libgcc.a and libc.a so there is no longer the need to mess around with
devkitARM's path's.
This problem is only going to occur in versions where the palette
buffer isn't aligned to 4 bytes (which it is in a matching pokeemerald).
Since agbcc returns sizeof(PlttData) = 4, it will read words
instead of half words. This causes unnecessary emulator warnings
in the function "BlendPalette".
Aligning the buffers to 4 bytes fixes this.
Michael Panzlaff