Rosegarden build here without error -- but I'm cheating with --fpermissive:
fpermissive only instructs the compiler to be more permissive when parsing the code; it does nothing to the linker, which is where Darrell is experiencing the problem.
I suspect a problem with 64 bit Slackware 14 at this point, not something in TDE.
I added similar comments to the bug report. :-)
Slackware 14 is not yet official and likely at least a few weeks away from release candidate status. cmake 2.8.8 is being used, although the same version is in the 32-bit version. Which package provides the linker? gcc?
Darrell