gnu patch: mode to ignore whitespaces

Yakov <[email protected]>
Newsgroups gmane.comp.gnu.utils
Organization http://groups.google.com
Message-ID <8a446885-a264-4cd8-bd23-bcbfbb76ba69@c33g2000hsd.googlegroups.com> 
Does gnu patch have a option to ignore the whitespace ? (when
comparing surrounding lines for context doff, like diff -w/-b) ?
Thanks
Yakov
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