On Tue, Oct 10, 2017 at 7:51 PM, Jesse H <jhamer90...@gmail.com> wrote: > Greetings, > > I have been trying to use the function "homfly_polynomial()" from the Link > package in Sage, but it requires an optional package "libhomfly": > http://files.sagemath.org/spkg/upstream/libhomfly/index.html. > > Unfortunately, when I try to install libhomfly ("sage -i libhomfly") the > build always fails (see attached log file). > > One of the dependencies for libhomfly is Boehm GC, but when I try to install > this package ("sage -i boehm_gc"), it is not even found on Sage's list of > optional packages (even though it's displayed on the > website:http://mirrors-usa.go-parts.com/sage/sagemath/spkg/upstream/boehm_gc/index.html). > I'm not sure if this is indeed the issue, but it's just something I came > across. > > For what it's worth, I'm running SageMath 8.0 and MacOS 10.12.6 on a mid > 2012 MacBook Pro with a 2.3 GHz i7 processor and 8GB RAM. > > Any help is much appreciated.
This looks like a bug in libhomfly. Just looking at the sources it has some messy handling of extern variable declarations vs. definitions, and many global variables are actually being defined in multiple modules. I haven't run into this problem myself building libhomfly but maybe my compiler is more forgiving. Regardless it definitely looks wrong to me. I could see if I can reproduce on OSX now that I have shiny new access to a big OSX machine :) Erik -- 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 post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
