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    SubjectRe: Kconfig troubles when using menuconfig - Was: [patch]Re: [linux-usb-devel] linux-2.6.22-rc5-gf1518a0 build #300 failed in zc0301_core.c
    Hi,

    On Fri, 22 Jun 2007, Mauro Carvalho Chehab wrote:

    > Hi Roman,
    >
    > Several instabilities on Kconfig started to happen after replacing
    > Kconfig menus to use menuconfig, as this one, reported by Oliver:
    >
    > Em Qui, 2007-06-21 às 13:50 +0200, Oliver Neukum escreveu:
    > > Am Donnerstag, 21. Juni 2007 schrieb Toralf Förster:
    > > > Right, but IMHO this issue is typical for a problem with the Kconfig definitions of this module.
    > > >
    > > > I'll set USB devs as Cc: therefore.

    There is too little context here, what was the exact error?
    I'm assuming it's the module vs. builtin problem?

    > In this specific case, all V4L USB drivers depends on V4L_USB_DRIVERS,
    > that depends, in turn, on USB. So, if USB is not selected,
    > V4L_USB_DRIVERS should be unselected, unselecting zc0301.
    >
    > Unfortunately, the Kernel building system is not properly handling it.
    >
    > This is the (snipped) media/video/Kconfig:
    >
    > menuconfig V4L_USB_DRIVERS
    > bool "V4L USB devices"
    > depends on USB
    > default y
    >

    The menuconfig patches were a little aggressive here, it created a config
    symbol where there was none before and in this case it even changed
    dependencies (it turns USB into a bool).
    I'm also a little irritated by the "default y", if I enable V4L I'm very
    tempted to check what other useless stuff has been automatically enabled,
    which I have to turn off again.

    bye, Roman
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