* choose-temp.c: Prototype mkstemps() when IN_GCC.
* cplus-dem.c (consume_count): Cast argument of ctype macro to
`unsigned char'.
(cplus_demangle_opname): Cast the result of `strlen' to (int) when
comparing against one.
(cplus_mangle_opname): Likewise.
(demangle_integral_value): Cast argument of ctype macro to
`unsigned char'.
(demangle_template_value_parm): Likewise.
(demangle_template): Initialize variable `bindex'. Cast the
result of `strlen' to (int) when comparing against one. Remove
unused variable `start_of_value_parm'.
(demangle_class_name): Cast the result of `strlen' to (int) when
comparing against one.
(demangle_prefix): Cast argument of ctype macro to `unsigned char'.
(gnu_special): Likewise. Cast the result of `strlen' to (int)
when comparing against one.
(demangle_qualified): Cast argument of ctype macro to `unsigned char'.
(get_count): Likewise.
(do_type): Likewise. Cast the result of `strlen' to (int) when
comparing against one.
(demangle_fund_type): Cast argument of ctype macro to `unsigned char'.
(demangle_function_name): Cast the result of `strlen' to (int)
when comparing against one.
* mkstemp.c (mkstemps): Cast variable `len' to (int) when
comparing against one.