On Tuesday 11 March 2008 17:22, Curtis Olson wrote: > On Tue, Mar 11, 2008 at 12:06 PM, Melchior FRANZ wrote: > > No, you can leave that. Just install plib somewhere else (e.g. > > in your home dir), and point sg and fg to it via > > --with-plib=... plib is (supposed to be) linked statically, so > > it's not needed at runtime and can be anywhere. > > Just be careful ... multiple versions of libs can coexist just > fine in different places on your hard drive, but if in a couple > months, you forget how you set it up, or just lose focus > momentarily, you could end up building against the wrong version > of the package (or even headers from one version and libs from > another, etc.) and end up with some weirdness ... so it's always > best to recognize your own limitations and weaknesses and decide > if you want more than one version of a lib on your system at one > time. :-) > > There are many ways to make this easier or harder on yourself ... > I won't get into all the sysadmin details, but as a general rule > of thumb, I personally try to avoid having pre-packaged versions > of software installed on the same system as a different version > built from source ... as long as I can sidestep the dependency > hell of the linux packaging system to remove a particular > package. > > Regards, > > Curt.
Yup, that's exactly what was going through my mind. Luckily, I don't have anything other than FG that's dependant on plib so I can uninstall the packaged version without problems - phew:) It's just that I have seven machines to maintain, each with two entirely separate O/S copies on them, for testing, resilience & recovery reasons, the second copy on each machine being a 'held-back' known-to-be-working stable version of the first. It means fourteen systems, at two different s/w levels to maintain and keep track of, which isn't trivial. Heh:) - when I was running Debian 'unstable' I had three systems on each machine, because upgrade breakages were quite common. However, since switching to 'stable' I've been able to reduce it to two:) Just in case anyone's wondering, I usually only have three or four systems running for FG stuff - one or two 'workstations', a server and a gateway/firewall. The others only really get used for distributed 3d rendering and upgrade installation testing, although every system has a copy of the the server data and gateway/firewall configs backed up on to it so I can quickly swap a system in/out if there's a serious h/w problem anywhere. LeeE ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
