[Bug libstdc++/47275] ofstream::put(255) results in bad stream when built with -fsigned-char on platforms that default to unsigned char

[schwab@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47275

--- Comment #4 from Andreas Schwab <schwab@linux-m68k.org> 2011-01-13 16:56:55 UTC ---
By changing the signedness of char you change the ABI and everything must use
the same ABI.