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    SubjectRe: [PATCH] kbuild: fix W=1 with gcc 4.3.2
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    Le jeudi 21 avril 2011 à 23:08 +0200, Sam Ravnborg a écrit :
    > Building a kernel using W=1 with gcc 4.3.2 failed like this:
    >
    > cc1: error: unrecognized command line option "-Wpacked-bitfield-compat"
    >
    > Make use of this option dependent on the compiler.
    >
    > Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
    > Cc: Dave Jones <davej@redhat.com>
    > ---
    > I do not see this a stable material - people running stable kernels
    > have less value of W=1.
    >
    > And the amount of warnings are outright silly. We should really
    > divide this up a bit so W=1 is semi usefull.
    >
    > Sam
    >
    > diff --git a/scripts/Makefile.build b/scripts/Makefile.build
    > index d5f925a..b280284 100644
    > --- a/scripts/Makefile.build
    > +++ b/scripts/Makefile.build
    > @@ -73,7 +73,7 @@ KBUILD_EXTRA_WARNINGS += -Wnested-externs
    > KBUILD_EXTRA_WARNINGS += -Wold-style-definition
    > KBUILD_EXTRA_WARNINGS += $(call cc-option, -Woverlength-strings,)
    > KBUILD_EXTRA_WARNINGS += -Wpacked
    > -KBUILD_EXTRA_WARNINGS += -Wpacked-bitfield-compat
    > +KBUILD_EXTRA_WARNINGS += $(call cc-option, -Wpacked-bitfield-compat)
    > KBUILD_EXTRA_WARNINGS += -Wpadded
    > KBUILD_EXTRA_WARNINGS += -Wpointer-arith
    > KBUILD_EXTRA_WARNINGS += -Wredundant-decls
    > --

    Please add same fix for gcc-4.1.2

    cc1: error: unrecognized command line option "-Wlogical-op"





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