'properties' is too close of the meson definition and we need to duplicate
the entries for 'c_link_args' and 'cpp_link_args'.
By using 'extra_libs' we have a more functional definition of what we want.
If ccache is availble, use it. It can improve a lot the compilation time.
We do not change the meson_cross_file.txt as, for now, meson doesn't
support ccache when cross-compiling.
We cannot install it on travis (for now ?) and we don't use it anyway.
This have somehow to be fixed as the wine tool will be necessary to test
binaries and we want tests.
Fedora provides a set of (powerfull) tools to correctly pass the right
options to compilation tools (configure, cmake, ...)
This is great but we must not use them as we want to cross-compile from
other distribution (ubuntu).
Now, we do not use those tools and we can easily port cross-compilation to
ubuntu.
Matthieu Gautier