On Thursday 24 January 2013, Alexander Neundorf wrote: > On Thursday 24 January 2013, Brad King wrote: > > On 01/24/2013 12:39 PM, Alexander Neundorf wrote: > > > Also, it could have been installed into the symlink, but be found via > > > the non- symlink path. > > > > Right, it is not possible to handle installing into a symlink because we > > cannot know that when computing paths ahead of time. > > > > The two competing goals are: > > > > * Relocatable package. This is for binary tarball distributions and we > > > > can assume there will be no symlink mess because we control the > > tarball. If someone extracts it in a system prefix then they are on > > their own. > > > > * Distro-maintained package. This has a fixed install path and should > > > > simply use full paths. > > > > I do not think we should try to handle cross-prefix symlinks at the same > > time as relocatable packages. The remaining issue is how to know which > > one the current build wants. Ideas? > > Symlinks could appear in any prefix. > But do we have to care about that, or is it good enough if we try to make > the /lib[64]/ symlinks related to the ongoing /usr-move work ? > > Gentoo just wants to symlink files, which would be ok for cmake: > http://wiki.gentoo.org/wiki//usr_move > > Fedora, ArchLinux, Mageia symlink the directories: > https://fedoraproject.org/wiki/Features/UsrMove > https://wiki.mageia.org/en/Feature:UsrMove > https://wiki.archlinux.org/index.php/DeveloperWiki:UsrMove > > The CONFIGURE_PACKAGE_CONFIG_FILE() macro could check its > INSTALL_DESTINATION argument, whether it is /lib[64]/ or /usr/lib[64]/ and > use full paths in that case. > > I'll play around a bit with the macro.
There is now the PackageConfigHelper_UsrMove branch on stage. If the Config.cmake will be installed to /lib(64) or /usr/lib(64), it will use full absolute paths. Building a package with this should help with the /usr-move changes. I haven't merged it yet. If there are no objections or better ideas, I'll merge it tomorrow. We should then try to convince /usr-move distributions to use this new version of cmake as soon as possible. Alex -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
