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Allow Python packages to be dropped
When building in a portage chroot, we do not have the environment needed to build pylibfdt. It is instead build as a separate package. Provide a build option to tell U-Boot to skip this part of the build. We still need it to use binman, etc. but don't need it to build its dependencies. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Mike Frysinger <vapier@chromium.org> [s/build bytes/builds bytes in tools.rst] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
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9
Makefile
9
Makefile
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@ -485,6 +485,15 @@ export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
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export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
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--exclude CVS --exclude .pc --exclude .hg --exclude .git
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export PYTHON_ENABLE
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# This is y if U-Boot should not build any Python tools or libraries. Typically
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# you would need to set this if those tools/libraries (typically binman and
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# pylibfdt) cannot be built by your environment and are provided separately.
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ifeq ($(NO_PYTHON),)
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PYTHON_ENABLE=y
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endif
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# ===========================================================================
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# Rules shared between *config targets and build targets
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9
doc/build/tools.rst
vendored
9
doc/build/tools.rst
vendored
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@ -45,3 +45,12 @@ Launch the MSYS2 shell of the MSYS2 environment, and do the following::
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$ make tools-only_defconfig
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$ make tools-only
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Building without Python
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-----------------------
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The tools-only builds bytes pylibfdt by default. To disable this, use the
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NO_PYTHON variable::
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NO_PYTHON=1 make tools-only_defconfig tools-only
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@ -19,4 +19,6 @@ HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
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$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
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# Added for U-Boot
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ifeq ($(PYTHON_ENABLE),y)
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subdir-$(CONFIG_PYLIBFDT) += pylibfdt
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endif
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