dependency tracking for coreboot

Obviously compile time increases slightly because more work has to be done, but
I'm sure the benefit of having to rm -rf build less often is worth it :-)

Other small changes:
* be a bit more verbose on some of the created files
* move -O2 from compiler rule into bootblock_romccflags
* drop rule needed for util/*.c -> build/*.o as x86emu no longer lives in util.

Signed-off-by: Stefan Reinauer <>
Acked-by: Myles Watson <>

git-svn-id: svn:// 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
5 files changed
tree: a4b0218493bdd119399ade8009d8120f62e4fa8f
  1. documentation/
  2. payloads/
  3. src/
  4. util/
  6. Makefile