mxcl/homebrew — pull request #8929 by waltarix (2011-12-02 05:03:47+00:00)
Title: git: add "--with-pcre" option

The git's subcommand "grep" has a "-P" option to use Perl-compatible regexp(PCRE) patterns.
But it requires git to be linked against libpcre.

So this patch makes it possible to use it by linking against libpcre.