* Richard Fish <[EMAIL PROTECTED]> [18/06/05 17:02]: > > Moshe Kaminsky wrote: > > > Hi, > > > > I've noticed that after merging every package, portage runs ldconfig > > (the 'Regenerating /etc/ld.so.cache...' message). This takes a long > > time, and as far as I understand, for most packages is unnecessary. I > > looked in portage.py, and it appears that portage indeed checks whether > > the relevant directories where modified during the merge. However, this > > check is ignored if ldconfig should create links (ie, run without the -X > > flag). Can someone explain it? as far as I understand, links are only > > created to files in the same directories that are checked, so if they > > were not modified, no links should be created, right? > > > Well, regarding when ldconfig should be run, the answer is after > anything that installs libraries or updates /etc/ld.so.conf. > > As to when portage runs ldconfig, well, it seems it will run it in the > following circumstances: > > 1. If an ebuild specifically calls out env-update. > > 2. After each ebuild, unless the package has been downgraded, in which > case makelinks is set to 'False'. I'm not sure I understand this logic... >
So, assuming the package is not downgraded, this is usually (or at least in many of the cases) unneeded. For example, when installing perl modules, etc. And portage actually checks whether libraries were installed, but then the makelinks flag basically causes the check to be ignored. > 3. After packages are unmerged > > 4. In a very specific case after all packages are emerged...the logic is > a bit too much for me to decipher without stepping through with a > debugger, or adding a bunch of print statements. > > > So, I have a question for you...what exactly do you mean by "takes a > long time"? On my system, ldconfig completes in under 10 seconds after > a fresh boot, and almost instantaneously after that. On my system it takes a bit longer, I think maybe 20 seconds, and I didn't notice any difference between calling it immediately after a boot or after that. My machine is quiet old, though (800Mhz Duron with with 128MB RAM). I agree it's not much after emerging openoffice or mozilla, but it is much if you need to install ten perl modules, which consists basically of copying some files, and ldconfig is run after every one of them for nothing. I think I'm just going to try and remove this makelinks condition, and see what happens. Thanks, Moshe > > -Richard > > -- > [email protected] mailing list > -- I love deadlines. I like the whooshing sound they make as they fly by. -- Douglas Adams Moshe Kaminsky <[EMAIL PROTECTED]> Home: 08-9456841
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