Hi Malcolm, I have the same OS as you (Ubuntu 18.04) and I could build 9.0 (as well as 9.1.beta0) without any trouble. If I compare the file r-3.6.2.log resulting from the build of R on my system with yours, they are pretty similar until these lines in your r-3.6.2.log:
making pretty.d from pretty.c making uncmin.d from uncmin.c make[7]: Entering directory '/usr/local/CA/sage-9.0/local/var/tmp/sage/build/r-3.6.2/src/src/appl' gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -fopenmp -fpic -g -O2 -c integrate.c -o integrate.o In file included from ../../src/include/R_ext/Applic.h:41:0, from integrate.c:33: ../../src/include/R_ext/BLAS.h:103:55: error: expected declaration specifiers or '...' before ')' token const double *beta, double *y, const int *incy FCLEN); The similar lines in my r-3.6.2.log are making pretty.d from pretty.c making uncmin.d from uncmin.c make[7]: Entering directory '/home/eric/sage/9.0/local/var/tmp/sage/build/r-3.6.2/src/src/appl' gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -fopenmp -fpic -g -O2 -c integrate.c -o integrate.o gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -fopenmp -fpic -g -O2 -c interv.c -o interv.o ... Successfully installed r-3.6.2 Deleting temporary build directory /home/eric/sage/9.0/local/var/tmp/sage/build/r-3.6.2 Finished installing r-3.6.2.spkg A question: are you using the system gfortran (i.e. gfortran coming from the Ubuntu package gfortran) and not Sage's built gfortran? I am using the system one. Best regards, Eric. Le samedi 11 janvier 2020 16:18:37 UTC+1, Malcolm MacCallum a écrit : > > I am using a Dell Inspiron 13, 5000 series, running > Ubuntu Linux 18.01. > > The error in building R as seen in the attached log > led to the overall build failing. I would have liked > to have an updated sage having just changed Linux > distro to Ubuntu. Advice on how to fix this welcomed! > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/ff96bdd5-8b66-4c4b-8392-60a0ae30e2a4%40googlegroups.com.