NO_WERROR vs kernel builds

[Andriy Gapon]

on 04/02/2009 21:19 Andriy Gapon said the following:
> It seems that kernel builds ignore NO_WERROR.
> Is this on purpose or by accident?
> 
> I think that this happens because of the following lines in
> sys/conf/kern.pre.mk:
> 
> .if ${CC} != "icc"
> CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
> CFLAGS+= --param inline-unit-growth=100
> CFLAGS+= --param large-function-growth=1000
> .if ${MACHINE_ARCH} == "amd64" || ${MACHINE} == "i386" || \
>     ${MACHINE_ARCH} == "ia64" || ${MACHINE_ARCH} == "powerpc" || \
>     ${MACHINE_ARCH} == "sparc64"
> WERROR?= -Werror
> .endif
> .endif
> 
> I had to specify WERROR= on make's command line to catch a certain kind
> of warnings in bulk instead of one by one. This was not obvious.
> 

Can anybody please explain or comment (or rub my nose into it)?

-- 
Andriy Gapon