[LTP] [PATCH 1/1] travis: use various gcc and clang versions + using containers

[Petr Vorel]

Hi Cyril,

> $ export COMPILER=clang-3.9
> $ export CC=clang

> $ clang --version
> clang version 3.4 (tags/RELEASE_34/final)

> Shouldn't we set the compiler: to clang-3.9 as well, export
> CC=clang-3.9 or something?
It's not like that, travis sets CC itself, so I'm setting COMPILER variable and pass it to
make (see and of the patch).

I just need fix it to v2 as I'm passing CXX - wrong variable, as we have C not, C++. Now
it's really not working :-(.
I'll explain it more in v2.


Kind regards,
Petr