Fellow users, I'm running into some rather odd behavior trying to compile some software, and would like to know if there is maybe a fix or if I should revert back to a 32-bit version of Centos. I'm trying to compile NCAR Graphics, as well as some other weather related software on this machine which is running the Centos 4.1 x86-64 version. It's a dual Xeon processor. I've installed all the required rpms, i.e., xdevel, xaw, etc. The problem I'm seeing is during linking of the various packages, where I get messages of "skipping incompatible /usr/X11R6/lib/libXaw.so when searching for -lXaw". I see similar other messages when trying to link to -L X11, and so forth and so on. I've got the correct paths set in the makefiles, but not sure I understand why the libs are being shown as incompatible. If any of you have built ncarg on the x86-64 OS, I'd sure like to hear from you, and what you did to effect the compile. Thanks.. Sam -- Snowman