pkg/47161: Could we add zlib.pc.in from the zlib distro to pkgsrc?

[diro%nixsyspaus.org@localhost]

>Number:         47161
>Category:       pkg
>Synopsis:       Could we add zlib.pc.in from the zlib distro to pkgsrc?
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 06 12:25:00 +0000 2012
>Originator:     diro%nixsyspaus.org@localhost
>Release:        NetBSD 6.0
>Organization:
>Environment:
System: NetBSD nguest 6.0 NetBSD 6.0 (GENERIC) amd64
Architecture: amd64
Machine: amd64
>Description:
        There is no zlib.pc distributed with the pkgsrc version of zlib.
>How-To-Repeat:
        Build a package that's looking for zlib.pc and get tired of the warning
messages.
>Fix:
        Add it and the corresponding PKG_CONFIG_OVERRIDE line to
devel/zlib/Makefile;
        Add lib/pkgconfig/zlib.pc to devel/zlib/PLIST