Travis Notes

These are notes (to remind me!) of the various issues when trying to use Travis for this project. Setting up Travis for modern C++1y is a PITA.

Out of date Trusty packages

Default clang and GCC compiler versions are old. Need to update and explicitly specify versions using matrix include options. See complex example.

Mixed C++11 feature support

E.g. <codecvt> Unicode support. This is implemented on libc++, but varies on libstdc++.

• libc++ - the new library effort by LLVM to write C++ standard library in C++1y.
• libstdc++ - the older C++03 C++ standard library.

OSX has very good C++1y support through AppleClang. Linux is spotty in some areas. Trying to mix the two is problematic and I think causes link errors.

Travis command conflicts

• addons conflicts with install - cannot have both.