tech-pkg: don't build (or attempt install) if same version is installed

Subject: don't build (or attempt install) if same version is installed
To: None <tech-pkg@netbsd.org>
From: Jeremy C. Reed <reed@reedmedia.net>
List: tech-pkg
Date: 09/10/2007 08:32:21

Any option for pkgsrc to not extract, build or attempt install if same 
version is already installed?
So if a variable is defined then check:
 pkg_info -e `make show-var VARNAME=PKGNAME`
And just say "foo-version is already installed."
Maybe have that enabled by default unless PKG_DEVELOPER.
 Jeremy C. Reed