Thanks to all those who replied, especially Eric. It seems clear the issue is/was with gfortran. I had not installed the system gfortran so I was using the sage one. I now have the system one (7.4.0, same as Eric). I'm not entirely sure how to ensure sage uses the system version (in principle I view the self-containedness of sage as one of its major virtues). Using make build -j4 has built a sage 9.0 that starts up OK (not fully tested yet), and since I don't use R that should be fine.
On Sunday, January 12, 2020 at 5:00:23 PM UTC, Eric Gourgoulhon wrote: > > Le dimanche 12 janvier 2020 16:40:21 UTC+1, Dima Pasechnik a écrit : >> >> we have seen this already, it is a known bug/feature of gfortran (certain >> versions) found by R people. >> > > Ah yes: > > https://developer.r-project.org/Blog/public/2019/05/15/gfortran-issues-with-lapack/ > > In my case, gfortran --version returns > GNU Fortran (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 > > Eric. > > >> On Sun, 12 Jan 2020, 15:36 Eric Gourgoulhon, <egourg...@gmail.com> wrote: >> >>> From the log files, a difference between your system and mine is that >>> your Linux kernel is 5.0.0-37-generic, while mine is 4.15.0-72-generic >>> (which is the standard for Ubuntu 18.04.3, I think). I don't know is this >>> could be the root of the difference in the building of R. >>> >>> Best regards, >>> >>> Eric. >>> >>> Le dimanche 12 janvier 2020 15:19:59 UTC+1, Eric Gourgoulhon a écrit : >>>> >>>> PS: I am attaching my log file for R. >>>> >>>> -- >>> 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-...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/sage-devel/3175f829-2d80-4bbb-b1ef-800052dda26c%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/sage-devel/3175f829-2d80-4bbb-b1ef-800052dda26c%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- 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/4a5d668b-31f2-457b-b216-a14390238d65%40googlegroups.com.
