I have set up Hudson to take builds of C++ projects. I have to build my projects
in different OS and compiler combinations. Matrix project seems like a good
solution, but I need to be able to select which combinations will actually be
built instead of an exhaustive build of all combinations.

A matrix table with checkboxes in each cell may be a solution.

I will try to write down my scenario here. If there's another way to solve this
with current matrix project settings, I would be glad to hear it.

I set up my Slave Label's like this:

Windows Slave - Labels: Windows
Fedora10 Slave - Labels: Fedora10
Solaris Slave - Labels: Solaris

Now what I want to do is, build for both CC (SunStudio) and GCC compilers in
Solaris, but only Solaris labels.