Am 14.12.2013 01:04, schrieb Bruce Hill: > On Fri, Dec 13, 2013 at 09:08:54PM +0100, Volker Armin Hemmann wrote: >> well, you won't find it in menuconfig. Or at least I couldn't. You can >> reach that option in xconfig. >> >> On the other hand ZLIB_DEFLATE is turned on by a douzend of other >> options that it is VERY probable you never have to touch it. > xconfig doesn't turn on options that aren't there in menuconfig ... you just > might be able to navigate xconfig's interface better.
I saw the option in xconfig. I did not see it in menuconfig. xconfig has a setting to show options that are only enabled by other options. Show normal options: ZLIB_DEFLATE is hidden Show all options: ZLIB_DEFLATE is visible and can be changed. > > Any time you can't see how to enable a kernel option, just search for it and > look at the Selected By field to see what you need to turn it on: > > Symbol: ZLIB_DEFLATE [=y] > Type : tristate > Defined at lib/Kconfig:198 > Selected by: PPP_DEFLATE [=n] && NETDEVICES [=y] && PPP [=n] || BTRFS_FS > [=n] && BLOCK [=y] || JFFS2_ZLIB [=n] && MISC_FILESYSTEMS [=y] && JFFS2_FS > [=n] || LOGFS [=n] && MISC_FILESYSTEMS [=y] && (MTD [=n] || BLOCK [=y] and you are missing half of it: Selected by: PPP_DEFLATE [=n] && NETDEVICES [=y] && PPP [=n] || BTRFS_FS [=n] && BLOCK [=y] || JFFS2_ZLIB [=n] && MISC_FILESYSTEMS [=y] && JFFS2_FS [=n] || LOGFS [=n] && MISC_FILESYSTEMS [=y] && (MTD [=n] || BLOCK [=y]) || CRYPTO_DEFLATE [=y] && CRYPTO [=y] || CRYPTO_ZLIB [=m] && CRYPTO [=y] oh look: crypto_zlib turns it on too. > My personal preference is nconfig ... easy to navigate, nice colors on black > bgd. but it seems that nconfig is hiding information from you, that xconfig delivers.