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![Masahiro Yamada](/assets/img/avatar_default.png)
Currently, the Kbuild core manipulates header search paths in a crazy
way [1].
To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.
Having whitespaces after -I does not matter since commit 48f6e3cf5b
("kbuild: do not drop -I without parameter").
[1]: https://patchwork.kernel.org/patch/9632347/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
38 lines
1.1 KiB
Makefile
38 lines
1.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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hostprogs-y := genksyms
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always := $(hostprogs-y)
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genksyms-objs := genksyms.o parse.tab.o lex.lex.o
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# FIXME: fix the ambiguous grammar in parse.y and delete this hack
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#
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# Suppress shift/reduce, reduce/reduce conflicts warnings
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# unless W=1 is specified.
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#
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# Just in case, run "$(YACC) --version" without suppressing stderr
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# so that 'bison: not found' will be displayed if it is missing.
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ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
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quiet_cmd_bison_no_warn = $(quiet_cmd_bison)
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cmd_bison_no_warn = $(YACC) --version >/dev/null; \
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$(cmd_bison) 2>/dev/null
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$(obj)/parse.tab.c: $(src)/parse.y FORCE
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$(call if_changed,bison_no_warn)
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quiet_cmd_bison_h_no_warn = $(quiet_cmd_bison_h)
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cmd_bison_h_no_warn = $(YACC) --version >/dev/null; \
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$(cmd_bison_h) 2>/dev/null
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$(obj)/parse.tab.h: $(src)/parse.y FORCE
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$(call if_changed,bison_h_no_warn)
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endif
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# -I needed for generated C source (shipped source)
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HOSTCFLAGS_parse.tab.o := -I $(srctree)/$(src)
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HOSTCFLAGS_lex.lex.o := -I $(srctree)/$(src)
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# dependencies on generated files need to be listed explicitly
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$(obj)/lex.lex.o: $(obj)/parse.tab.h
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