On 04/06/10 01:25, Fabian Groffen wrote: > On 05-04-2010 23:18:35 -0500, Johan Hattne wrote: >> On 30 Mar 2010, at 03:13, Fabian Groffen wrote: >> >>> On 30-03-2010 07:19:02 +0200, Markus Duft wrote: >>>> just to chime in on the movability: i successfully moved whole prefix >>>> installations to other directories, and they worked fine (hint: i used >>>> chpathtool to adjust paths) the only limitation is, that the path has to >>>> be the exact same length (or less long, but that one didn't work for me >>>> yet, but that could be fixable). of course this is not really >>>> convenient, but it should be possibly for you to create >>>> >>>> "/home/user/prefix-with-long-path1" >>>> and >>>> "/cluster/disk25/user/prefix-short" >>>> >>>> those would be exchangeable. Of course chpathtool is possibly still not >>>> perfect, and i observed the one or the other segfault with certain files >>>> (none of those lately though). However you're free to fix it ;) >>> >>> That could match chpathtool's changes that it got recently. Instead of >>> trying to shorten paths, it now pads them with leading slashes, e.g.: >>> >>> original prefix: /path/to/my/long/prefix >>> target prefix: ////////my/short/prefix >>> >>> As a result, the target prefix is always as long as the original prefix, >>> be it somewhat ugly. We found that this solves misc issues that you get >>> when you suddenly make a string smaller ;) >> >> Apologies for resurrecting this topic, and I just realised I've >> probably been confusing chpathtool with chrpath during all previous >> discussions, but I haven't seen any mention of patchelf. I got the >> Intel compiler running in a Linux-prefixed-portage last week. > > What can patchelf do that you needed to get it going?
It can set (grow or shrink) the rpath. It can also set the run-time linker, but I didn't seem to need that for this exercise. ebuild attached. // Cheers; Johan
# Copyright 1999-2010 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header:$ EAPI="3" DESCRIPTION="A small utility to modify the dynamic linker and RPATH of ELF executables" HOMEPAGE="http://nixos.org/patchelf.html"; SRC_URI="http://hydra.nixos.org/build/114505/download/2/${PN}-${PV}.tar.bz2"; KEYWORDS="~x86-linux" LICENSE="GPL-3" SLOT="0" src_configure() { econf --docdir="${EROOT}/usr/share/doc/${PN}-${PV}" \ || die "configure failed" } src_install() { emake install DESTDIR="${D}" || die "make install failed" }
