On Fri, May 2, 2014 at 2:38 PM, leif <not.rea...@online.de> wrote: > William Stein wrote: >> >> I just spent a while trying to figure out how to get R png graphics to >> work again in Sage-6.2rc0 on Ubuntu 14.04. Note that graphics worked >> fine with Sage-6.2beta1 on Ubuntu 12.04. Karl Dieter's many random >> posts around the web asking about this problem were helpful, though in >> this case the problem is new in sage-6.2rc0 due to trac #15742, and >> will kill R usage for a lot of people if we release sage-6.2.rc0 as >> is... >> >> I tracked the problem down to pkg-config being in Sage-6.2rc0, whereas >> it is not in Sage-6.2beta1. >> >> This is because of http://trac.sagemath.org/ticket/15742, which is >> very important to getting Sage to build at all on some wonky systems. >> But on a mainstream modern Linux OS this ticket leads to problems. >> Wouldn't it be better to only build/install pkgconfig on systems that >> don't have a good one already? >> >> My solution to deal with this R problem is: >> >> cd $SAGE_ROOT/local/bin && mv pkg-config pkg-config.orig && ln -s >> /usr/bin/pkg-config . >> sage -f r > > > Could someone elaborate the problem(s), i.e., give an example of what > exactly broke? (Such that I could check the proposed solution at [1].)
On SageMathCloud (at least the nodes running Ubuntu 14.04, but I bet the same is true of 12.04) with sage-6.2.rc1, if you do sage -sh pkg-config cairo echo $? you get 1. If you do /usr/bin/pkg-config cairo echo $? 0 you get 0. This is the only specific reported issue, but it is easy to reproduce. Cairo is some graphics package that is needed for R to make images with X11. -- William > > Also, are there issues (regressions) on systems that *don't have* a > system-wide pkg-config installed at all? > > > -leif > > [1] http://trac.sagemath.org/ticket/16274 > > > >> Of course, I have to wonder what other components of Sage got built >> incorrectly due to Sage's pkg-config returning misleading results >> (e.g., saying that a system-wide library isn't available even though >> it is)... >> >> William > > > -- > () The ASCII Ribbon Campaign > /\ Help Cure HTML E-Mail > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. -- William Stein Professor of Mathematics University of Washington http://wstein.org -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
