dtc: Implement -d option to write out a dependency file
This will allow callers to rebuild .dtb files when any of the /include/d
.dtsi files are modified, not just the top-level .dts file.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/dtc/srcpos.h b/scripts/dtc/srcpos.h
index bd7966e..ce980ca 100644
--- a/scripts/dtc/srcpos.h
+++ b/scripts/dtc/srcpos.h
@@ -30,6 +30,7 @@
struct srcfile_state *prev;
};
+extern FILE *depfile; /* = NULL */
extern struct srcfile_state *current_srcfile; /* = NULL */
FILE *srcfile_relative_open(const char *fname, char **fullnamep);