This is something which has confused me in the past. The issue is that there are two shared object libraries with the exact same name. If we compile with -L$SAGE_LOCAL/lib are we guaranteed that this will be searched before /usr/lib at runtime.
Josh On Nov 8, 6:22 pm, mabshoff <[EMAIL PROTECTED] dortmund.de> wrote: > On Nov 9, 3:14 am, Joshua Kantor <[EMAIL PROTECTED]> wrote: > > Hi Josh, > > > Yeah. the missing symbol is because its linking against libblas in / > > usr/lib, which was compiled with some other probably older fortran > > (why oh why can't all the fortrans get along). > > > I'm curious about what people think is a good solution here. > > If they have a libblas in /usr/lib thats broken like this (it > > requires special additional libraries but we can't deduce that at > > compile time) > > We are guaranteed a BLAS in $SAGE_LOCAL/lib because we compile it > ourselves. So just add -L $SAGE_LOCAL/lib to the flags at the right > point and the problem is gone. > > > then as far as I know, the only way to avoid linking against their > > blas is to change the name of our blas library > > i.e. libsage_blas and link against that. Or do something like set > > LD_LIBRARY_PATH=$SAGE_LOCAL (but thats not a good way to solve the > > problem). > > Nope, I agree that this is not a solution. And we do add $SAGE_LOCAL/ > lib to LD_LIBRARY_PATH which causes the problem in the first place. > > > > > Thoughts? > > :) > > Off to the airport > > > Josh > > Michael > > > > > On Nov 8, 1:11 pm, mabshoff <[EMAIL PROTECTED] > > > dortmund.de> wrote: > > > On Nov 8, 9:50 pm, Kate <[EMAIL PROTECTED]> wrote: > > > > > Michael, > > > > <SNIP> > > > > > sage -t devel/sage-main/sage/numerical/test.py > > > > ********************************************************************** > > > > File "test.py", line 4: > > > > : from cvxopt.base import * > > > > Exception raised: > > > > Traceback (most recent call last): > > > > File "/home/kate/sage/sage-2.8.12-ia64-Linux/local/lib/python2.5/ > > > > doctest.py", line 1212, in __run > > > > compileflags, 1) in test.globs > > > > File "<doctest __main__.example_0[0]>", line 1, in <module> > > > > from cvxopt.base import *###line 4: > > > > : from cvxopt.base import * > > > > ImportError: /usr/lib/libblas.so.3: undefined symbol: e_wsfe > > > > ********************************************************************** > > > > Sorry to reply to myself so quickly: here we are pulling in the > > > "local" blas and not the one we compiled with Sage. So that should be > > > easily fixable. > > > > Note to self: Need more sleep. > > > > Cheers, > > > > Michael --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
