** Info from CMake:
** The OLD behavior for this policy is to place definition values given to add_definitions directly in the generated build rules without attempting to escape anything.
** The NEW behavior for this policy is to generate correct escapes for all native build tools automatically.
If this breaks build, let us know on irc : irc.rizon.net/#trinity
-Wwrite-strings is default enabled when -Wall is set in clang/gcc, hence removed.
-Woverloaded-virtual is now enabled for C++-code only, this removes the useless warnings when dabbling with C-only code.
