Gentoo Archives: gentoo-user

From: Philip Webb <purslow@××××××××.net>
To: Gentoo User <gentoo-user@l.g.o>
Subject: [gentoo-user] GCC : another trap for the unwary
Date: Sat, 08 Sep 2012 14:50:36
Message-Id: 20120908144747.GA2892@ca.inter.net
1 My new machine is working & compiles lightning-fast :
2 it feels like the driver of a steam engine hurtling down the tracks
3 (I've just finished a biography of J G Robinson, the UK loco designer).
4
5 I've just recompiled most of the pkgs listed by 'emerge -ep system',
6 but found a few problems :
7
8 (1) Gcc 4.5.4 seems to require USE="cxx", not the previous "-nocxx",
9 which was covered by "-*" at the beginning of my list in make.conf .
10 4.5.4 compiled without "cxx" wouldn't recompile itself with "cxx" (!),
11 but I found I could get around the problem by emerging 4.4.5 ,
12 then using that to recompile 4.5.4 , after which 4.5.4 did recompile itself.
13 It doesn't hurt to have > 1 version of Gcc installed.
14
15 (2) Libxml2 failed : I simply left it till tomorrow to find out why.
16
17 (3) Groff + Openssh have an "X" flag : is this useful ?
18 Python has a "build" flag, which suppressed many deps,
19 but now I'm back in my regular machine
20 'euses' issues a grim warning vs setting it.
21
22 (4) The ancient distinction between 'world' / 'system'
23 seems to have degenerated into chaos :
24 some pkgs which clearly sb part of 'system' aren't,
25 while others -- eg virtuals -- have been added.
26
27 Incidentally, I've found out why the system creates many TTYs :
28 they're the equivalent of GUI workspaces = desktops,
29 allowing someone working without X to view different files etc.
30 I'm continually struck by the genius of those who created UNIX in 1969 ...
31
32 --
33 ========================,,============================================
34 SUPPORT ___________//___, Philip Webb
35 ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto
36 TRANSIT `-O----------O---' purslowatchassdotutorontodotca

Replies

Subject Author
Re: [gentoo-user] GCC : another trap for the unwary Alan McKinnon <alan.mckinnon@×××××.com>
Re: [gentoo-user] GCC : another trap for the unwary Andrea Conti <alyf@××××.net>
Re: [gentoo-user] GCC : another trap for the unwary Walter Dnes <waltdnes@××××××××.org>