Use the preprocessor to make platform specific files compile as empty files if
built for a different platform. This removes the need to distinguish in the
Makefile and simplifies creating a libsansapatcher.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31143 a1c6a512-1295-4272-9138-f99709370657
Both patchers use the same function name with one being removed when
building for rbutil. This gets in the way trying to move the patchers to
libraries, and it also results a linking dependency of sansapatcher on
ipodpatcher. Renaming the function makes both more self-contained and
avoids potential issues if the functions happen to not do the same.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23568 a1c6a512-1295-4272-9138-f99709370657
