On Sun, 2008-05-04 at 09:10 +0200, Sam Ravnborg wrote: > Today we have two ways to express/solve dependencies. > > Top-down we have "depends on" > and bottom up we have "select". > > The "depends on" dependencies at the same > time impact the visibility of a symbol. > A symbol with "depends on" not satisfied are not > visible and thus not shown in menuconfig. Perhaps this is problem: The menu item shouldn't be selectable for sure but it may well be visible (and I'm purposely ignoring details of "how to grey out" for the different user interfaces). If it's visible (but not selectable) the user interface can provide the auto-generated requirements (derived from the "depends on" chains) as part of the "help" or where ever it seems useful. And the user at least knows where to look further. > The "select" method is a way to forcefully > set the selected symbol to the same value > as the one where the select are stated. Which makes sense from the usability point of view for typical library functions (e.g. zlib, CRC, ...). But that ("which CONFIG_ variables actually selected this CONFIG_ variable" and/or "which CONFIG_ variables will selected this CONFIG_ variable") could also be automatically generated and displayed. Bernd -- Firmix Software GmbH http://www.firmix.at/ mobil: +43 664 4416156 fax: +43 1 7890849-55 Embedded Linux Development and Services -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html