The source project of this merge request has been removed.
Do not run tests on gcc 4.8 build.
(Warning: Flamewar commit)
It appears that support for gcc 4.8 has be effectively given up, since the tests have been unstable for many months now.
This MR does not remove full support for gcc48; it still verifies it compiles, but watching these tests fail over and over is not informative.