linux-kernel - [PATCH 14/15] fixup: kbuild: add support for ensuring headers are self-contained

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Date:   Tue,  4 Jun 2019 19:14:08 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        David Howells <dhowells@...hat.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Jani Nikula <jani.nikula@...el.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 14/15] fixup: kbuild: add support for ensuring headers are self-contained

This is needed to avoid regeneration of header-test C files.

This will go away when Jani send v2.

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

 scripts/Makefile.build | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 2b4d56483c2e..067e98628664 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -298,10 +298,9 @@ $(obj)/%.lst: $(src)/%.c FORCE
 # ---------------------------------------------------------------------------
 
 quiet_cmd_header_test = HDRTEST $@
-      cmd_header_test = echo "\#include \"$(<F)\"" > $@
+      cmd_header_test = echo "\#include \"$*.h\"" > $@
 
-# FIXME: would be nice to be able to limit this implicit rule to header-test-y
-$(obj)/%.header_test.c: $(src)/%.h FORCE
+$(obj)/%.header_test.c:
 	$(call if_changed,header_test)
 
 # Compile assembler sources (.S)
-- 
2.17.1