tree fa60dc1484fb53ac7fc661f792170ad1ca0c6eb2
parent 56c53f6b4828be84ff84308163fd6c204e540ed7
author Masahiro Yamada <yamada.masahiro@socionext.com> 1482387785 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1483583959 +0900

Build: add -MP option to add dummy rules to *.d files

This adds a phony target for each dependency other than the main
file, causing each to depend on nothing.

Without this, the incremental build will fail when a header file
is removed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>