And what linker do you use by default? This error is because libstdc++ is not explicitly included in the linking line. It wouldn’t be a problem if g++ was used for linking but here gcc is used. So it means that libzmq.so is underlinked with regards to libstdc++ or that your linker requires explicit linking (I believe the later is getting more common because a default has been changed in ld).
I don’t expect using sage’s gcc to improve the situation if it is a linker issue. François > On 20/02/2015, at 23:30, Jori Mantysalo <[email protected]> wrote: > > FYI when trying to make Sage[math] 6.5 on Fedora 21 I got > > - - - - > > gcc build/temp.linux-x86_64-2.7/scratch/vers.o > -L/home/jm58660/sage-6.5/local/lib -Wl,-R/home/jm58660/sage-6.5/local/lib > -lzmq -lrt -o build/temp.linux-x86_64-2.7/scratch/vers > /home/jm58660/sage-6.5/local/lib/libzmq.so: undefined reference to > `std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20' > collect2: error: ld returned 1 exit status > > error: command 'gcc' failed with exit status 1 > > Fatal: Falling back on bundled libzmq, but setup.cfg has explicitly > prohibited building the libzmq extension. > > real 0m0.512s > user 0m0.261s > sys 0m0.085s > ************************************************************************ > Error installing package pyzmq-14.3.0 > > - - - > > I will continue with SAGE_INSTALL=GCC=yes, but the error message might be of > interest to someone. > > -- > Jori Mäntysalo This email may be confidential and subject to legal privilege, it may not reflect the views of the University of Canterbury, and it is not guaranteed to be virus free. If you are not an intended recipient, please notify the sender immediately and erase all copies of the message and any attachments. Please refer to http://www.canterbury.ac.nz/emaildisclaimer for more information. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
