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The new non-GNU grep in FreeBSD 9 was designed to be compatible with GNU grep (pedantically, with GNU grep configured with --disable-perl-regexp as it has been
by jasomill 14y ago
The new non-GNU grep in FreeBSD 9 was designed to be compatible with GNU grep (pedantically, with GNU grep configured with --disable-perl-regexp as it has been in previous FreeBSD releases) because lots of ports depend on GNU grep behavior. The fear of God is not a sufficient reason to break ports.