I just bought a dual processor Opteron a week or two ago and am still trying to get all the wrinkles worked out on it. I am trying to develop some software to run on it, but I am using some proprietary libraries that are only in i386 format. When I try to link those libraries in with the FC2 libraries such as TCL or Open Motif, it exits because they are incompatible. If it is a 32 bit app, then the TCL libraries can't be found. If it is 64 bit, then the proprietary libraries can't be found.
My question is, how does one setup a machine that would allow me to develop both 32bit and 64bit applications? I would need to have both 32bit and 64bit versions of most/all of the libraries, but that doesn't seem to be included with FC2. Do I have to install everything twice, by myself? And if I tried to do that, would the 32 bit and 64 bit rpms try to uninstall each other?