On 30 May 1999, Matthias Scheler wrote:

: > It doesn't work as expected. "pkg_add" e.g. honors a single "@cwd"
: > command but not multiple. I'm working on a fix.
: 
: After thinking about it again I came to the conclusion that neither
: yours nor Christos's method will work with binary packages.

However, I later posted about the correct way that postfix should do what it
needs to do, to wit:

share/doc/postfix/LICENSE
share/postfix/postfix-script
@exec mkdir -p /etc/postfix
@exec ln -sf %D/share/postfix/postfix-script
@unexec rm -f /etc/postfix/postfix-script

-- 
-- Todd Vierling (Personal tv@pobox.com; Bus. todd_vierling@xn.xerox.com)