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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-09-14 09:33:23 +0300 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-10-04 16:56:01 +0300 |
| commit | 80463f1b7bf9f822fd3495139bcf3ef254fdca10 (patch) | |
| tree | 8cdacffa9330a8026f9f9a6013096cd9f01107a4 /Makefile | |
| parent | 00d78ab2ba756af7b9a4dacd437b7a882bd18a4b (diff) | |
| download | linux-80463f1b7bf9f822fd3495139bcf3ef254fdca10.tar.xz | |
kbuild: add --include-dir flag only for out-of-tree build
The --include-dir flag is used to include check-in Makefiles from
$(objtree) without $(srctree)/ prefix. Obviously, this is unneeded
for in-tree build. Add the flag just before changing the working
directory.
This becomes effective after invoking sub-make. Add a little bit
comments about it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 14 |
1 files changed, 10 insertions, 4 deletions
@@ -15,10 +15,9 @@ NAME = Merciless Moray PHONY := _all _all: -# o Do not use make's built-in rules and variables -# (this increases performance and avoids hard-to-debug behaviour); -# o Look for make include files relative to root of kernel src -MAKEFLAGS += -rR --include-dir=$(CURDIR) +# Do not use make's built-in rules and variables +# (this increases performance and avoids hard-to-debug behaviour) +MAKEFLAGS += -rR # Avoid funny character set dependencies unexport LC_ALL @@ -136,6 +135,13 @@ KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ $(if $(KBUILD_OUTPUT),, \ $(error failed to create output directory "$(saved-output)")) +# Look for make include files relative to root of kernel src +# +# This does not become effective immediately because MAKEFLAGS is re-parsed +# once after the Makefile is read. It is OK since we are going to invoke +# 'sub-make' below. +MAKEFLAGS += --include-dir=$(CURDIR) + PHONY += $(MAKECMDGOALS) sub-make $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |