Hi Fotis,
On Jul 25, 2015, at 11:32 AM, Fotis Georgatos <[email protected]> wrote:
>
> Hi Pieter,
>
>>> For libpng-1.6.17 and freetype-2.6 I had to create new easyconfigs and
>>> patches as these libs contain bugs and some R packages fail to compile with
>>> the plain vanilla libs.
>
> Can you show your output, within R, of capabilities(),
R> capabilities()
jpeg png tiff tcltk X11 aqua
TRUE FALSE TRUE TRUE FALSE FALSE
http/ftp sockets libxml fifo cledit iconv
TRUE TRUE TRUE TRUE TRUE TRUE
NLS profmem cairo ICU long.double libcurl
TRUE FALSE TRUE TRUE TRUE FALSE
> along with the output of lsb_release -a ?
$> lsb_release -a
-bash: lsb_release: command not found
But I guess this is more or less what you were looking for:
$> cat /etc/redhat-release
Scientific Linux release 6.6 (Carbon)
> A bug on Stefano’s side still persists and we need to understand some
> cause-effect chains...
> ...namely, the png capability should be expected to be at TRUE value, correct?
It's ... complicated. AFAIK there are many ways to create PNG images with R. In
order to get png = TRUE from capabilities() you need X11, which is missing on
many "headless" cluster nodes. In order to create PNG images without a
dependency on X11 you can use Cairo Graphics. There are (at least?) two R
packages to create PNGs with Cairo: Cairo and cairoDevice. I'm using Cairo
which happily creates PNGs with png = FALSE from capabilities().
See also
http://r.789695.n4.nabble.com/How-to-get-R-to-compile-with-PNG-support-td3457938.html
and https://gist.github.com/wch/2096726
Cheers,
Pi
> tia,
> Fotis
>
>
> --
> echo "sysadmin know better bash than english" | sed s/min/mins/ \
> | sed 's/better bash/bash better/' # signal detected in a CERN forum
>
>
>
>
>
>
>
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