linux-kernel - Re: [BUILD_FAILURE] 2.6.25-rc2-mm1

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Date:	Fri, 22 Feb 2008 19:56:48 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	Nish Aravamudan <nish.aravamudan@...il.com>,
	Len Brown <lenb@...nel.org>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	Andy Whitcroft <apw@...dowen.org>
Subject: Re: [BUILD_FAILURE] 2.6.25-rc2-mm1 - Build Failure at acpi_os

On Fri, Feb 22, 2008 at 10:29:38AM -0800, Randy Dunlap wrote:
> Sam Ravnborg wrote:
> >>Is there a way to generate (in Kconfig language) the boolean
> >>CONFIG_ACPI_CUSTOM_DSDT based on whether CONFIG_ACPI_CUSTOM_DSDT_FILE
> >>== "" or != "" ?  I tried to muck around with that last night but
> >>couldn't get it to work.  I.e., just present the ACPI_CUSTOM_DSDT_FILE
> >>config symbol to the user and then generate the ACPI_CUSTOM_DSDT bool
> >>based on the string value.
> >
> >Something following this example?
> >
> >config STRING
> >        string
> >        prompt "What string"
> >        default ""
> >
> >config STRING_IS_NOT_EMPTY
> >        bool
> >        default STRING != ""
> >
> >
> >But that seems too easy - were you trying to do something
> >more complex than this?
> 
> Yes, that's almost what I had.  I used def_bool n on the second config 
> symbol,
> but the bool value never changed when I changed the string value.
> I'll be glad to look at it again though.
I tested that above in a small Kconfig file and it
works as expected. When I set the string to something
STRING_IS_NOT_EMPTY is equal to y.

	Sam
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