I installed the libsigc RPM, and then the Gpar RPM. However, although gpar "installs" it does not work, and says it cannot find the libsig object files. After I make a symlink from my lib64 dir to the lib dir where the files are installed, it complains about libgtkmm-2.4.so.1. I tried installing this RPM as well, but it also produces problems.
When I tried installing everything from scratch (Centos5, 64bit AMD), libpar cannot find the libsig files (which I installed form scratch). I tried using the flags to specify where they are. This also does not help.