* choose-temp.c (choose_temp_base): Remove MPW bits.  Use mkstemp
        instead of mktemp.
        * gcc.c (MKTEMP_EACH_FILE): Define.
        (main): No need to call choose_temp_base if we are going to
        use choose_temp_base to create each file later.
        * mkstemp.c: New file.  Adapted from glibc.
        * Makefile.in (xgcc, colect2, protoize, unprotoize): Link in mkstemp.o
        (mkstemp.o): Add dependencies.

From-SVN: r20746