'Twas brillig, and Patrick Shirkey at 08/08/09 12:16 did gyre and gimble: > What is the correct prefix for installing the 64 bit compile? There is no right answer here. Personally when I build my own package of *anything* I pick a custom prefix for it so as not to interfere with my system packages... Usually I'll checkout/clone into a new folder e.g. /home/colin/Development/foobar And when I build/configure I'll typically use: /home/colin/Development/foobar/build and when I pick a prefix, I usually choose: /home/colin/Development/foobar/prefix. When I want to run said app, I just set LD_LIBRARY_PATH and PATH appropriately and knock myself out. Distro provided packages are typically held in a /usr prefix with libdir sometimes set to /usr/lib64 for 64 bit systems (that's how we do it on Mandriva but not sure about other distros). > I have the > libs in /usr/lib64. Where should the include files go? Well, I think you're trying to manually copy things about here which doesn't sound like a very wise thing to do to be honest. I'd either use a custom prefix that wont clobber your system packages or I'd just build the source as an RPM that you can easily remove/upgrade etc later. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]