[libstdc++] Add --disable-hosted-libstdcxx, clean up conditionals

[Bill Wendling]

Also sprach Gabriel Dos Reis:
} Bill Wendling <wendling@ncsa.uiuc.edu> writes:
} 
} | Also sprach Gabriel Dos Reis:
} | } 
} | } Are you also proposing we should say --enable-languages=cxx instead of
} | } the straight --enable-languages=c++?  Atre you also proposinig we
} | } rename the compiler from g++ to gxx?
} | } 
} | Please don't be ridiculous.
} 
} That consistently follows from your previous elaborations.  If it shound
} ridiculous to you, then it certainly says something about your
} elaborations. 
} 
My previous statements said nothing about program names nor did it
mention anything about parameters to flags passed into configure. It only
mentioned configure flags.

Sorry for the confusion.

-- 
|| Bill Wendling            "Real Programmers have a Snoopy Calendar
|| wendling@ncsa.uiuc.edu    of '69 hanging on their wall"
|| Coding Simian                       -- Toon Moene