[Osi-tickets] [COIN-OR Open Solver Interface] #95: Have osi load solvers libraries at runtime rather than linking to them

[COIN-OR Open Solver Interface]

#95: Have osi load solvers libraries at runtime rather than linking to them
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  Reporter:  chm.duquesne    |      Owner:  mjs
      Type:  defect          |     Status:  new
  Priority:  major           |  Milestone:
 Component:  Osi Base Class  |    Version:  0.100.2
Resolution:                  |   Keywords:
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Comment (by chm.duquesne):

 The patch runtime_library_discovery.patch​ applies to trunk.

 How to test:
 1) apply the patch
 2) run BuildTools/run_autotools from trunk (you should have the right
 version of the autotools installed. If you don't, use the patch I wrote
 for the BuildTools project - see ticket 95 in their bugtracker [1])
 3) install lazylpsolverlibs [2]
 4) run ./configure --prefix /usr/local; make (prefixing is optional. To be
 sure this works, I installed my version full time on my system so that I
 am the first to experiment bugs)
 5) replace the files osi-cplex.pc, osi-xpress.pc, osi-gurobi.pc with the
 ones I attached in the archive pkgconfig.tar.gz (sorry I could not
 generate these files properly using the autotools macros)
 6) (sudo) sudo make install
 7) compile the test case I attached in osi_solver.tar.gz, run ./solver:
 - if you don't specify where the solvers are, no problem should be solved.
 - otherwise if you give the full path to the proper library to
 lazylpsolverlibs through one of the variables
 LAZYLPSOLVERLIBS_CPLEX_LIB_PATH, LAZYLPSOLVERLIBS_XPRESS_LIB_PATH or
 LAZYLPSOLVERLIBS_GUROBI_LIB_PATH, it will solve the problem.

 [1]: https://projects.coin-or.org/BuildTools/ticket/95
 [2]: https://code.google.com/p/lazylpsolverlibs/

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Ticket URL: <https://projects.coin-or.org/ticket/95#comment:1>
COIN-OR Open Solver Interface <http://projects.coin-or.org/Osi>
An API for a variety of LP and MIP solvers (and more).