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SubjectRe: Documentation of kconfig language differs from implementation regarding existence of symbols
Dne 10.10.2012 02:17, Martin Walch napsal(a):
> The file linux/Documentation/kbuild/kconfig-language.txt says:
>
>> The following two methods produce the same kconfig symbol
>> dependencies but differ greatly in kconfig symbol existence
>> (production) in the generated config file.
>>
>> case 1:
>>
>> config FOO tristate "about foo" depends on BAR
>>
>> vs. case 2:
>>
>> if BAR config FOO tristate "about foo" endif
>>
>> In case 1, the symbol FOO will always exist in the config file
>> (given no other dependencies). In case 2, the symbol FOO will
>> only exist in the config file if BAR is enabled.
>
> However, I can not reproduce this. The attached file contains both
> cases. When running make menuconfig, setting BAR0 and BAR1 both to
> n, and saving the configuration, there is neither FOO0 nor FOO1 in
> the resulting configuration file.

Indeed, that paragraph seems wrong. I think we should revert commit
64b81ed. Randy, Arnaud?

Thanks,
Michal



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