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kbuild: fix comment about missing include guard detection

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The keyword here is 'twice' to explain the trick.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2020-04-09 03:29:19 +09:00
parent a0d1c951ef
commit 00d76a0c19
1 changed files with 1 additions and 1 deletions
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2
usr/include/Makefile
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@ -93,7 +93,7 @@ no-header-test += asm-generic/%
extra-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null)) extra-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
# Include the header to detect missing include guard. # Include the header twice to detect missing include guard.
quiet_cmd_hdrtest = HDRTEST $< quiet_cmd_hdrtest = HDRTEST $<
cmd_hdrtest = \ cmd_hdrtest = \
$(CC) $(c_flags) -S -o /dev/null -x c /dev/null \ $(CC) $(c_flags) -S -o /dev/null -x c /dev/null \