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Date: Fri, 22 Feb 2008 19:56:48 +0100
From: Sam Ravnborg <sam@ravnborg.org>
To: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Nish Aravamudan <nish.aravamudan@gmail.com>, Len Brown <lenb@kernel.org>,
       Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       linux-acpi@vger.kernel.org, Andy Whitcroft <apw@shadowen.org>
Subject: Re: [BUILD_FAILURE] 2.6.25-rc2-mm1 - Build Failure at acpi_os
Message-ID: <20080222185648.GA6843@uranus.ravnborg.org>
References: <20080216002522.9c4bd0fb.akpm@linux-foundation.org> <47B73DD8.4030405@linux.vnet.ibm.com> <200802210208.47487.lenb@kernel.org> <29495f1d0802211054s26665d3cy1609d3347867cb16@mail.gmail.com> <20080221222245.GB30976@uranus.ravnborg.org> <29495f1d0802211738leb47f9ayf9b3ab6aa51b66cb@mail.gmail.com> <20080222180815.GB6434@uranus.ravnborg.org> <20080222101344.821ea02a.randy.dunlap@oracle.com> <20080222182737.GC6434@uranus.ravnborg.org> <47BF1492.20901@oracle.com>
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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