bug#55322: 28.1; :base-uri not working for svg images on mac

[Howard Melman <hmelman@gmail.com>]

On May 10, 2022, at 2:01 PM, Alan Third <alan@idiocy.org> wrote:
> 
> On Tue, May 10, 2022 at 06:17:03PM +0100, Alan Third wrote:
>> On Mon, May 09, 2022 at 09:43:45PM -0400, Howard Melman wrote:
>>> 
>>>> On May 9, 2022, at 5:42 PM, Alan Third <alan@idiocy.org> wrote:
>>>> 
>>>> Try messing with the base-uri, perhaps try setting it to the
>>>> directory, or to foo.svg or something.
>>> 
>>> I had tried using a directory as :base-uri but that didn't help.
>> 
>> Hmm, I tried looking at the librsvg source to see if I could work out
>> whether there's anything funny going on, but it's in rust and I don't
>> understand it, so that didn't help at all. I'm pretty much stumped. If
>> I get a chance I'll see if I can dig the Mac out and see if I can
>> reproduce it.
> 
> I actually just did this while waiting for my dinner, and it works
> fine here using an image I had lying around. I'm trying to upgrade my
> librsvg to the latest version in case mine is too old, but it's taking
> forever.
> 
> Can you please ensure that the image being referenced in the SVG is
> actually there and that Emacs is able to open it directly?

At the time I absolutely verified this.  OSM lets you click around the map
to drop a pin and so those tiles get redrawn with the underllying map and
the pin, just like in the result of a search.  Clicking around showed these
same issues too, which is what convinced me the tile were there and 
drawable.  Also I opened the original tile and it rendered fine.

I can't quite reproduce this now.  I installed a new version from emacsformac
and upgraded osm which does more checks.  I can't quite verify that
the emacsformac build links in librsvg.  I will try the other build you
mentioned, I was unaware of it.

Thanks.

Howard