tree 82ffe9ff7bdedca4b4131a4e016a75591ad17a60
parent 07a2fd6af6a74df278be9d4b757e4ad037fd1687
author Yann Gautier <yann.gautier@st.com> 1536050640 +0200
committer Yann Gautier <yann.gautier@st.com> 1538141333 +0200

MAKE_DTB: dependencies on device tree source files

Fixes the dependencies issue for DTB image build.

Use -MT $(DTBS) -MMD -MF $(DTSDEP) to generate the precompilation
dependencies on DTS file(s).
"-MT $(DTBS)" builds a dependency for the target DTS file.
"-MMD" includes header file dependencies but not on system header files.
"-MF $(DTSDEP)" generates a Makefile script to define the dependencies
 which is included afterward.

This change renames existing variable DEP into DTBDEP.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>