Re: [gentoo-user] /usr/lib/ccache/bin does not exist, big deal?

[laurent]

daid kahl a écrit :
>> I'm emergin system and world after a little while, maybe 4 months, I got
>> directory does not exist /usr/lib/ccache/bin
>>
>> I search a bit, and it seems that ccache accelerate compiling.
>> So it's seems to emerge anyway in a good way.
>> What should I do to kinda make it better ? Just create that folder??
>>
>>
>
> The short answer is to edit make.conf and create a new directory.  For
> example, here is a copy from my make.conf of the relevant location
> (sorry for the line numbers):
>
> FEATURES="collision-protect sandbox ccache userpriv usersandbox buildpkg"
> # features for the cowboy in you
> #FEATURES="-collision-protect -protect-owned sandbox ccache"
> CCACHE_DIR="/var/tmp/ccache/"
> CCACHE_SIZE="2G"
>
> You need to add the FEATURE ccache (don't worry about the rest of
> mine, but you should have some FEATURES I hope!), define the
> CCACHE_DIR & CCACHE_SIZE variables, and make sure the CCACHE_DIR is
> created.
>
> For more information, you can check the gentoo wiki:
> http://en.gentoo-wiki.com/wiki/Ccache
>
> Personally, right above the FEATURES declaration in make.conf, I have
> a stack of comments so I can remember what features are available and
> remember how to use them:
>
> # Notes of all possible FEATURES and the respective effects
> #  'assume-digests'
> #                when commiting work to cvs with repoman(1), assume that all
> #                existing SRC_URI digests are correct.  This feature also
> #                affects digest generation via ebuild(1) and emerge(1) (emerge
> #                generates digests only when the 'digest' feature is enabled).
> #  'autoaddcvs'  causes portage to automatically try to add files to cvs
> #                that will have to be added later. Done at generation times
> #                and only has an effect when 'cvs' is also set.
> #  'buildpkg'    causes binary packages to be created of all packages that
> #                are being merged.
> #  'ccache'      enables ccache support via CC.
> #  'confcache'   enable confcache support; speeds up autotool based configure
> #                calls
> #  'collision-protect'
> #                prevents packages from overwriting files that are owned by
> #                another package or by no package at all.
> #  'cvs'         causes portage to enable all cvs features (commits, adds),
> #                and to apply all USE flags in SRC_URI for digests -- for
> #                developers only.
> #  'digest'      autogenerate digests for packages when running the emerge(1)
> #                command.  If the 'assume-digests' feature is also enabled then
> #                existing SRC_URI digests will be reused whenever they are
> #                available.
> #  'distcc'      enables distcc support via CC.
> #  'distlocks'   enables distfiles locking using fcntl or hardlinks. This
> #                is enabled by default. Tools exist to help clean the locks
> #                after crashes: /usr/lib/portage/bin/clean_locks.
> #  'fixpackages' allows portage to fix binary packages that are stored in
> #                PKGDIR. This can consume a lot of time. 'fixpackages' is
> #                also a script that can be run at any given time to force
> #                the same actions.
> #  'gpg'         enables basic verification of Manifest files using gpg.
> #                This features is UNDER DEVELOPMENT and reacts to features
> #                of strict and severe. Heavy use of gpg sigs is coming.
> #  'keeptemp'    prevents the clean phase from deleting the temp files ($T)
> #                from a merge.
> #  'keepwork'    prevents the clean phase from deleting the WORKDIR.
> #  'test'        causes ebuilds to perform testing phases if they are capable
> #                of it. Some packages support this automaticaly via makefiles.
> #  'metadata-transfer'
> #                automatically perform a metadata transfer when `emerge --sync`
> #                is run.
> #  'noauto'      causes ebuild to perform only the action requested and
> #                not any other required actions like clean or unpack -- for
> #                debugging purposes only.
> #  'noclean'     prevents portage from removing the source and temporary files
> #                after a merge -- for debugging purposes only.
> #  'nostrip'     prevents the stripping of binaries.
> #  'notitles'    disables xterm titlebar updates (which contain status info).
> #  'parallel-fetch'
> #                do fetching in parallel to compilation
> #  'sandbox'     enables sandboxing when running emerge and ebuild.
> #  'strict'      causes portage to react strongly to conditions that are
> #                potentially dangerous, like missing/incorrect Manifest files.
> #  'userfetch'   when portage is run as root, drop privileges to
> #                portage:portage during the fetching of package sources.
> #  'userpriv'    allows portage to drop root privileges while it is compiling,
> #                as a security measure.  As a side effect this can remove
> #                sandbox access violations for users.
> #  'usersandbox' enables sandboxing while portage is running under userpriv.
>
> Regards,
> daid
>
>
>
>
Thank you daid!
Laurent