* choose-temp.c (choose_temp_base): Restore original variant of
        this function for compatibility.
        (make_temp_file): This is the new, preferred interface to create
        temporary files.
        * collect2.c (choose_temp_base): Delete declaration.
        (make_temp_file): Declare.
        (temp_filename_length, temp_filename): Delete.
        (main): Use make_temp_file to get temporary files.  Use --lang-c
        to force the resulting ctort/dtor file to be compiled with the C
        compiler.  Make sure to remove temporary files on all exit paths.
        * gcc.c (make_temp_file): Provide prototype if MKTEMP_EACH_FILE is
        defined.
        (choose_temp_base): Only provide prototype if MKTEMP_EACH_FILE is
        not defined.
        (do_spec): Use make_temp_file if MKTEMP_EACH_FILE is defined.

From-SVN: r20784