Description of problem:
Build of nc appears to success but actually just bundles up existing installed nc files rather than freshly compiled files because no BuildRoot set in spec file.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. rpmbuild -v -ba nc.spec
Old binary in generated rpm
New binary should be in rpm
This is a good test of your build procedure. The fact is that you haven't picked this up during regular builds.
BuildRoot tag has been deprecated since Fedora 10, see the Packaging guidelines . I haven't experienced this on Fedora 15 and it certainly doesn't happen in Koji.
If you're sure your environment isn't borked, file a bug with rpm[build].