prog.cpp: In instantiation of 'wheels::detail::alignment_type<8u>':
prog.cpp:13:8: instantiated from here
prog.cpp:7:88: error: requested alignment is not a constant
prog.cpp: In instantiation of 'wheels::detail::alignment_type<2u>':
prog.cpp:17:5: instantiated from here
prog.cpp:7:88: error: requested alignment is not a constant
prog.cpp:20:1: error: static assertion failed: ""
prog.cpp:22:1: error: static assertion failed: ""