#12220: Updated CBC spkg
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Reporter: ncohen | Owner: ncohen
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: linear programming | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Nathann Cohen
Merged: | Dependencies:
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Comment(by john_perry):
I got somewhere. I can get past the compilation stage if I rearrange the
declarations so that `OsiClpSolverInterface` is declared before
`CbcModel`, and also `OsiSolverInterface` is declared before
`OsiClpSolverInterface`. (I still don't understand why; that seems
bizarre.)
However, linking then fails. The last few lines of output are:
{{{
g++ -L/Applications/sage_bugs/sage-4.8.alpha0/local/lib -bundle -undefined
dynamic_lookup
build/temp.macosx-10.6-i386-2.6/sage/numerical/backends/coin_backend.o
-L/Applications/sage_bugs/sage-4.8.alpha0/local/lib -lcsage -lcsage
-lstdc++ -lCbc
-lCgl -lCbcSolver -lClp -lCoinUtils -lOsiClp -lOsi -lrt -lstdc++ -lntl -o
build/lib.macosx-10.6-i386-2.6/sage/numerical/backends/coin_backend.so
ld: library not found for -lrt
collect2: ld returned 1 exit status
error: command 'g++' failed with exit status 1
sage: There was an error installing modified sage library code.
}}}
There is, indeed, no `librt` in the directory specified. Is that supposed
to be linked?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12220#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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