Gentoo Archives: gentoo-user

From: Vaeth <vaeth@××××××××××××××××××××××××.de>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] I am a "f*****g retard". Can you help me?
Date: Mon, 15 Sep 2008 23:35:33
1 > I actually have to admit that, apparently, I suffer the same mental
2 > disability of the poster -that is, I used to believe that using
3 > --resume-skipfirst was harmless.
5 In most cases it is harmless (e.g. if you use recompile your whole system
6 without installing anything new or upgrading anything).
7 Even in other cases a loop as mentiond on the webpage _can_ be used
8 safely - but this requires extreme care and/or a lot of knowledge.
10 The problem is that after failing of a package, portage does
11 not recalculate the dependencies, i.e. it will attempt to install also
12 those packages which depend on the failed package. Unfortunately, this
13 does not mean that the packages depending on this will fail either:
14 Due to the dubious autotools, they might recognize that the failed
15 package is not available (if it was a new packages which failed)
16 and build/install successfully but actually without support for this
17 package (although by the intention of the ebuild author and/or according
18 to your useflags they should support it).
20 The correct solution to the problem of failing compiles e.g. over night
21 is the proper implementation of the --keep-going option where these
22 problems do not arise, because dependencies are recalculated after a
23 failure. However, in the absence of this option, the above mentioned
24 loop was the _only_ available workaround. For the reason explained above
25 it _might_ give you an inconsistent system (although the chances for this
26 are not very likely) unless _you_ check/know the dependencies and if in
27 doubt recompile those packages which were "falsely" successfully installed
28 after the failed package.
29 So - as all workarounds - the above mentioned loop had pros and cons
30 (the pro is of course that, usually, your machine would compile through
31 the night, and if you are lucky and e.g. only one package fails and you
32 _know_ that nothing depends on it, you have not wasted the whole night
33 of compiling).
34 In the presence of a --keep-going option, it is now fortunately not
35 necessary anymore to weight the pros and cons. Of course, to insult
36 somebody just because he weighted the pros and cons differently is beyond
37 any acceptable limit.


Subject Author
Re: [gentoo-user] I am a "f*****g retard". Can you help me? Neil Bothwick <neil@××××××××××.uk>
Re: [gentoo-user] I am a "f*****g retard". Can you help me? "b.n." <brullonulla@×××××.com>
Re: [gentoo-user] I am a "f*****g retard". Can you help me? Matthias Bethke <matthias@×××××××.de>