This option enables the elimination of redundant pathname information in file paths. This option is valid for Windows systems only.
Windows systems impose a 260 character limit on file paths.
Where relative pathnames exist whose absolute names expand to longer
than 260 characters, you can use the --reduce_paths option
to reduce absolute pathname length by matching up directories with
corresponding instances of .. and eliminating
the directory/.. sequences in pairs.
Note
ARM recommends that you avoid using long and deeply nested
file paths, in preference to minimizing path lengths using the --reduce_paths option.
See also--reduce_paths, --no_reduce_paths in the Compiler Reference.
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