On OS X, Sage by default should use the system's "gcc" (which is actually clang), so it's okay to not have a symlink connecting gcc-9 to gcc in /usr/local/bin. What you really need is /usr/local/bin/gfortan, and homebrew should provide that.
John On Tuesday, October 8, 2019 at 3:56:24 PM UTC-7, Zachary Scherr wrote: > > Hi Dima, > > I have, but I noticed something interesting which is that gcc and g++ > are no longer symlinked in my /usr/local/bin. I have gcc-9 and g++-9 in > there, but when I try "which gcc" and "which g++" I get /usr/bin/gcc and > /usr/bin/g++ which are the versions installed by command line tools. This > is making me even more confused because sage didn't even attempt to build > with the version of gcc installed by homebrew. > > I'm currently retesting with gcc and g++ symlinked to the new version. > I'll let you know if I have any success. > > Thanks, > Zach > > On Tuesday, October 8, 2019 at 4:25:23 PM UTC-4, Dima Pasechnik wrote: >> >> did you try updating homebrew? >> >> I think that what ultimately helped Ben to get a working gfortran, and >> correctly build whatever scipy's dependency is causing the problem. >> >> >> On Tue, Oct 8, 2019 at 3:17 PM Zachary Scherr <zsc...@gmail.com> wrote: >> >>> In an attempt to add openssl to sage I ran: sage -i openssl && sage -f >>> python2 (which I've done successfully in every previous version of Sage >>> 8.x). >>> >>> The sage -f python2 failed while trying to build scipy-1.2.0. This may >>> be related to Ben's post >>> https://groups.google.com/forum/#!topic/sage-devel/40E66JVHhW8 since it >>> also failed with the message >>> >>> ld: library not found for -lSystem >>> >>> I too have gcc installed through homebrew, but I also tried removing it >>> and installing gfortran separately and ended up with the same error. I've >>> attached the log file, anyone know what's going on? >>> >>> >>> >>> -- >>> 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/5a356d10-a069-487a-a75c-ace33ba11f07%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/sage-devel/5a356d10-a069-487a-a75c-ace33ba11f07%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/2c09ac1e-466b-49e2-828b-01e24cdb31f9%40googlegroups.com.
