Well, there are no X-es on this machine, but it is ready to use png
backend with or without cairo when compiled with freetype on host:
> capabilities()
jpeg png tiff tcltk X11 aqua http/ftp sockets
TRUE TRUE TRUE TRUE FALSE FALSE TRUE TRUE
libxml fifo cledit iconv NLS profmem cairo
TRUE TRUE TRUE TRUE TRUE FALSE TRUE
I don't care much about X11 there, I'm actually testing this to do R
trough Sage Cell server for one of courses I teach. When I enter
capabilities inside Sage, I get "false" almost everywhere, but the
"unable to load shared object" shows up as well.
On Fri, Apr 12, 2013 at 3:33 PM, Volker Braun <vbraun.n...@gmail.com> wrote:
> Can you use the Xlib backend in R?
>
> sage: print r.eval('capabilities()')
> jpeg png tiff tcltk X11 aqua http/ftp sockets
> libxml fifo cledit
> FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE
> TRUE TRUE TRUE
> iconv NLS profmem cairo
> TRUE TRUE FALSE FALSE
>
> You need more than just the Sage minimal requirements for R graphics. At
> least X11 development, ideally a working cairo. I think we should just
> disable our own freetype if the OS provides a working freetype (with
> headers). Otherwise you need a pretty large stack, cairo + freetype +
> harfbuzz + ... to produce high-quality plots.
>
>
>
>
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