Makefile.in: Remove MAYBE_CPPLIB and maybe_cpplib.

Makefile.in: Remove MAYBE_CPPLIB and maybe_cpplib.

        * Makefile.in: Remove MAYBE_CPPLIB and maybe_cpplib.
        * c-decl.c: Remove parse_in declaration.
        * c-lang.c: Similarly.
        * c-lex.c: Similarly.
        * c-parse.in: Similarly.
        * c-pragma.c: Similarly.
        * configure.in: Similarly.
        * cp/Make-lang.in: Similarly.
        * cp/spew.c: Similarly.
        * cp/decl2.c: Remove check for lang-c++ option.
        * cp/lang-specs.h: Remove -lang-c++ from cc1plus command line.
        * cp/lex.c (lang_init_options): With cpp_reader_init, default to C++.
        * c-lex.h: Add declaration of parse_in.
        * cppinit.c: Call set_lang after allocating pfile->pending.
        * configure: Regenerate.

From-SVN: r37754