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pylibfdt: compile pylibfdt only when dtoc/binman is necessary

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Currently, pylibfdt is always compiled if swig is installed on your
machine.  It is really annoying because most of targets (excepts
x86, sunxi, rockchip) do not use dtoc or binman.

"checkbinman" and "checkdtoc" are wrong.  It is odd that the final
build stage checks if we have built necessary tools.  If your platform
depends on dtoc/binman, you must be able to build pylibfdt.  If swig
is not installed, it should fail immediately.

I added PYLIBFDT, DTOC, BINMAN entries to Kconfig.  They should be
property select:ed by platforms that need them.  Kbuild will descend
into scripts/dtc/pylibfdt/ only when CONFIG_PYLIBFDT is enabled.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada
2017-10-17 13:42:44 +09:00
committed by Tom Rini
parent 15b97f5c5e
commit d6a0c78a4e
6 changed files with 20 additions and 29 deletions
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2
scripts/dtc/Makefile
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@@ -31,4 +31,4 @@ $(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
clean-files := dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h
# Added for U-Boot
subdir-y += pylibfdt
subdir-$(CONFIG_PYLIBFDT) += pylibfdt