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kbuild: uapi: fail header test on compiler warnings

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Compiler warnings also indicate issues with the headers.

Make sure they don't go unnoticed.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://lore.kernel.org/r/20250813-kbuild-hdrtest-fixes-v2-2-8a7921ca3a03@linutronix.de
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
This commit is contained in:
Thomas Weißschuh 2025-08-13 08:16:57 +02:00 • committed by Nathan Chancellor
parent d4b7080be2
commit 3788d69db1
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1 changed files with 1 additions and 1 deletions
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2
usr/include/Makefile
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@ -80,7 +80,7 @@ always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/
# Include the header twice to detect missing include guard.
quiet_cmd_hdrtest = HDRTEST $<
cmd_hdrtest = \
$(CC) $(c_flags) -fsyntax-only -x c /dev/null \
$(CC) $(c_flags) -fsyntax-only -Werror -x c /dev/null \
$(if $(filter-out $(no-header-test), $*.h), -include $< -include $<); \
$(PERL) $(src)/headers_check.pl $(obj) $<; \
touch $@