Date: Wed, 16 Feb 2005 11:34:05 +1100 From: Sam Lawrance <boris@brooknet.com.au> To: Paul Schmehl <pauls@utdallas.edu> Cc: ports@freebsd.org Subject: Re: mysqltcl Message-ID: <1108514045.686.27.camel@dirk.no.domain> In-Reply-To: <D092F82A556664A2F9A9F06C@utd49554.utdallas.edu> References: <D092F82A556664A2F9A9F06C@utd49554.utdallas.edu>
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On Tue, 2005-02-15 at 18:10 -0600, Paul Schmehl wrote:
> I have two questions. I'm trying to create a new port, and I need to
> indicate a dependency for mysqltcl. What I've tried fails:
>
> mysqltcl:${PORTSDIR}/databases/mysqltcl
>
> Second question - RUN_DEPENDS+=
> ${LOCALBASE}/bin/dtplite:${PORTSDIR}/devel/tcllib worked.
Be careful. If you only use RUN_DEPENDS, make sure your port can be
built without tcllib installed (because RUN_DEPENDS are checked and
installed after the build).
> In the interest of teaching a man to fish rather than feeding him, how did
> you figure this out? How do you figure out what library name or executable
> to use in the first tuple of DEPENDS? I've been doing it by trial and
> error, and that's obviously time consuming and inefficient.
>
> Is there a db somewhere that you can look this stuff up in? Is it in the
> docs somewhere? Tea leaves?
All the _DEPENDS variables are looking for something - an executable,
file or library - to verify that a particular port is installed.
What they look for and how they look for it depends on the type of
dependency. The porter's handbook at
http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook has a
reasonably extensive explanation.
When you are trying to find the right file or library name to use in
your _DEPENDS variable, look through the pkg-plist of the dependency to
see what it installs.
ports/Mk/bsd.port.mk has all the answers, even if you have to read for a
while before you get to them.
-Sam
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