[PATCH 1/2] makedep: Add support for using parent makefile variables.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  tools/makedep.c | 49 +++++++++++++++++++++++++++++++++++++++++++------
  1 file changed, 43 insertions(+), 6 deletions(-)