ipodpatcher: guard platform specific files.

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 libipodpatcher.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31169 a1c6a512-1295-4272-9138-f99709370657
3 files changed