Date: Thu, 27 Dec 2007 11:09:17 -0800 (PST) From: Doug Barton <dougb@FreeBSD.org> To: Joe Marcus Clarke <marcus@marcuscom.com> Cc: gnome@freebsd.org Subject: Re: In cairo, implicit depenencies on librsvg2 and/or poppler? Message-ID: <alpine.BSF.1.00.0712271059320.878@ync.qbhto.arg> In-Reply-To: <1198709162.11242.8.camel@shumai.marcuscom.com> References: <4772C814.6000302@FreeBSD.org> <1198709162.11242.8.camel@shumai.marcuscom.com>
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On Wed, 26 Dec 2007, Joe Marcus Clarke wrote:
>
> On Wed, 2007-12-26 at 13:31 -0800, Doug Barton wrote:
>> I was doing some stale ports cleanup recently and deleted a bunch of
>> stuff that didn't seem to be needed, including librsvg2 and poppler.
>> Deleting the former caused several of my applications to no longer be
>> able to display svg images. I tracked the problem down to the missing
>> librsvg2 of course, but only after carefully watching the configure
>> output of cairo and noticing that it gave a "can't use svg 'cuz you
>> don't have librsvg2" type message. It gives a similar message for
>> poppler, but AFAIK I don't actually need that.
>>
>> So, short version is that you might want to add OPTIONS for those two
>> libs, and related explicit dependencies for them in the cairo Makefile.
>
> Actually, it's not so simple. I assume the apps that could no longer
> display SVG images were GTK+ apps.
That's where it got interesting. Some of them were GTK, yes. But, firefox
could still render SVG just fine without librsvg2 installed. Weird.
> If so, they get the ability to render SVG images from the SVG GDK image
> loader installed by librsvg2
> (/usr/local/lib/gtk-2.0/2.10.0/loaders/svg_loader.so). This is a
> dlopen'd library, and thus is not really a hard dependency. It's more
> along the lines of, "if you want this functionality, install this port."
Right, which is why I suggested that it be made an OPTION. :)
> Neither gtk20 or cairo can depend on librsvg2, though, or we'd have a
> circular dependency (as librsvg2 needs gtk20 and gtk20 needs cairo).
I don't see the dependency on cairo in gtk20 or glib20, where does it come
in?
Doug
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