On 02/07/2014 08:47 AM, Winston Smith wrote: > Hello, > > My apologies it this has been answered before. > > I am looking for a way to specifically turn on or off a single configuration option from the command line. There is the 'config' make target, but this will go through each and every configuration item. I am looking for something like > > make V=2 O=../linux-3.6.3-build CONFIG_OPTION=y config > > whereby make (or a config program) would then go and switch on or off or modularise all dependent configuration options (or warn if the attempted setting requires another configuration to be changed). > > I see there is scripts/kconfig/merge_config.sh. Is this the right way to go? > > Thanks, > Winston -- I don't know of anything in the kernel itself, but a simple ex script should work, try something like: ex -s -c "%s/^.*CONFIG_OPTION.*$/CONFIG_OPTION=x/" -c "wq" .config Replace CONFIG_OPTION with the option you want to set, and x with the value. It should work for most of the options, but will have issues with ones that are found in the name of another option (for example, setting CONFIG_CMDLINE won't work because there are at least 2 other options that start with CONFIG_CMDLINE_). It also won't handle dependencies (you need to run make oldconfig to do that) or options in optional sub-menus (the sub-menu needs to be already selected in the config). -- To unsubscribe from this list: send the line "unsubscribe linux-config" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
