> > 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? Sam - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html