Enable compiler warnings by default
Enable compiler warnings by default

Works on both MSVC and GCC. Other compilers are welcome.

Credits: https://stackoverflow.com/questions/2368811/how-to-set-warning-level-in-cmake/3818084

Signed-off-by: Francis Giraldeau <77d47d63cdc62b1abf82e61d5db643cf34b1cc3a@gmail.com>

beltoforion/muparser,beltoforion/muparser