William Roberts <williamr@symbian.org> [Fri, 15 Oct 2010 09:56:49 +0100] rev 49
Add support for -D_DEBUG to turn on debugging in syborg_stem_rom.oby, and remove debug_stem_rom.oby
This is "sensible debugging", selected by using DEBUG_DIR instead of BUILD_DIR in the oby file - as per the ancient buildrom conventions.