Code review comment for lp:~vanvugt/mir/fix-1350674

129 +class GLProgramFamily
130 +{
131 +public:
132 + GLuint add_program(const char* vshader, const char* fshader);
133 + ~GLProgramFamily();

The destructor ought to be noexcept.

Also, I don't think it is useful to support copy/assign semantics.