Most of the PKI build dependencies are already specified in the spec file, but there's at least one dependency (i.e. gcc-c++, but there may be more) that is not specified in the spec file because it's assumed that the build system (i.e. Koji) will provide the package by default.

The problem is when someone tries to build PKI on a standard workstation it may fail since the gcc-c++ is not installed by default. And since it's not specified in the spec file it may not be very clear which packages are missing. To fix this all build dependencies not installed by default on a standard workstation should be specified in the spec file.

Steps to reproduce:
1. Prepare a standard workstation
2. Checkout PKI source code
3. Execute yum-builddep pki-core
4. Build PKI

Actual result: Build failed due to missing gcc-c++.

Expected result: All dependencies should be installed automatically with yum-builddep and the build should complete successfully.