I switched from master to develop and tried building with "make". I am running Ubuntu 14.04 with a 64-bit Intel i7-5600U processor
Error building Sage. The following package(s) may have failed to build (not necessarily during this run of 'make all'): Here is the relevant part of the log file: ./openblas_utest ./openblas_utest: error while loading shared libraries: libgfortran.so.3: cannot open shared object file: No such file or directory make[4]: *** [run_test] Error 127 make[4]: Leaving directory `/home/amri/sage/local/var/tmp/sage/build/openblas-0. 2.19/src/utest' make[3]: *** [tests] Error 2 make[3]: Leaving directory `/home/amri/sage/local/var/tmp/sage/build/openblas-0. 2.19/src' Error building OpenBLAS -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.