tree 7ebd46f8e150824102e18c7a6d7e7722b4ae229e
parent 596b0474d3d9b1242eab713f84d8873f9887d980
author Masahiro Yamada <masahiroy@kernel.org> 1599598557 +0900
committer Masahiro Yamada <masahiroy@kernel.org> 1600961809 +0900

kbuild: do not create built-in objects for external module builds

'make M=/path/to/your/external/module' creates a pointless built-in.a
in the top of the external module directory because KBUILD_BUILTIN is
set to 1.

Clear KBUILD_BUILTIN when we are building external modules so that
'make M=...' and 'make M=... modules' work equivalently.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>