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* configure.ac: Add additional warning flags. * configure: Regenerate. * io/write.c (calculate_G_format): Remove unused parameter. (output_float): Remove unused parameter. (write_float): Change callers. (nml_write_obj): Avoid signed warning. Make variable const to support -Wwrite-strings. * io/unix.c (fd_alloc, mmap_open, mmap_sfree, mem_sfree, mem_truncate): Mark argument as unused. * io/unit.c (get_unit): Mark argument as unused. (init_units): Avoid warning about signed comparision. * io/transfer.c (next_record_r): Remove unused parameter. (next_record_w): Remove unused parameter. (next_record): Change callers. (iolength_transfer): Mark arguments as unused. * io/open.c: Add initializer. * io/list_read.c (read_character): Mark argument as unused. (nml_match_name): Add const to make compile with -Wwrite-strings. * io/format.c: Add initializer. From-SVN: r99839
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