More flexible toolset matching in conditional requirements?

Conditional toolset requirements require an exact match, f.ex. `gcc-4.4.7:no`, but this is quite inconvenient as the full names are often illogical (the autodetected ones on Travis are `gcc-4.4.7`, `gcc-4.6`, `gcc-4.7`, `gcc-4.8` and then `gcc-4.9.4` again for some reason) and subject to constant change after minor upgrades. And the names on the test matrix are really creative.

Would it be possible to have a way to match against f.ex. `gcc` version 4.anything, or 4.4.anything? Even a simple prefix match (`gcc-4.4*`, `gcc-5*`) would work well in practice. (In principle `name-1*` would match both version 1 and version 14, but we don't have any such.)