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kbuild: enable -Werror for hostprogs

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The hostprog compilers and linkers do not share the regular compiler flags,
so they are not affected by CONFIG_WERROR or W=e. As hostprogs are used
during the bootstrap of the build, they can't depend on kconfig options.

Enable -Werror unconditionally.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://lore.kernel.org/rust-for-linux/CANiq72k-PdSH2BNgbq=X+FhpyEErifSCKfO5ObXz6bu9_J8+fA@mail.gmail.com/
Link: https://lore.kernel.org/r/20250814-kbuild-werror-v2-6-c01e596309d2@linutronix.de
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Thomas Weißschuh 2025-08-14 12:14:46 +02:00 committed by Nathan Chancellor
parent 3f0ff4cc6f
commit 27758d8c25
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1 changed files with 5 additions and 0 deletions
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scripts/Makefile.extrawarn
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@ -224,3 +224,8 @@ KBUILD_USERLDFLAGS += -Wl,--fatal-warnings
KBUILD_RUSTFLAGS += -Dwarnings
endif
# Hostprog flags are used during build bootstrapping and can not rely on CONFIG_ symbols.
KBUILD_HOSTCFLAGS += -Werror
KBUILD_HOSTLDFLAGS += -Wl,--fatal-warnings
KBUILD_HOSTRUSTFLAGS += -Dwarnings