pcre in base system

[Sergey Lyubka]

So it will.
If regex(3) will be decoupled from libc, one can remap
libregex to pcre, for example.

> > greater reliance on ports.  An interesting approach could be to
> > break out regex(3) from libc and allow base utilities to use shared
> > libraries from ports - this would allow someone to install the pcre
> > port and have the base sed(1) use it.
> 
> Uh, no.  /usr/src should be self-contained.