changes to add cbc suport for osx

setup.py

@@ -40,6 +40,7 @@ problems.
       package_data = {'pulp' : ["AUTHORS","LICENSE",
                                 "pulp.cfg.linux",
                                 "pulp.cfg.win",
+                                "pulp.cfg.osx",
                                 "LICENSE.CoinMP.txt",
                                 "AUTHORS.CoinMP.txt",
                                 "README.CoinMP.txt",

src/pulp/pulp.cfg.osx

@@ -0,0 +1,18 @@
+# The configuration file that holds locations for 3rd party solvers
+# This is an appropriate configuration file for linux uses and in this case is assuming that the
+# needed libraries are in the same directory as the config file (note this is not ideal and
+# may change in later versions)
+# Libraries are ordered in the needed order to resolve dependancies and CoinMP is loaded last
+# a windows specific configuation file is pulp.cfg.win
+#$Id: pulp.cfg 1704 2007-12-20 21:56:14Z smit023 $
+[locations]
+CplexPath = /usr/ilog/cplex/bin/x86_rhel4.0_3.4/libcplex110.so
+#note the recommended gurobi changes must be made to your PATH
+#and LD_LIBRARY_PATH environment variables
+GurobiPath = /opt/gurobi201/linux32/lib/python2.5
+CbcPath = cbc
+GlpkPath = glpsol
+PulpCbcPath = %(here)s/solverdir/cbc-osx
+[licenses]
+ilm_cplex_license = "LICENSE your-enterprise\nRUNTIME NEVER ..."
+ilm_cplex_license_signature = 0

src/pulp/solvers.py

@@ -102,6 +102,8 @@ def initialize(filename):
 PULPCFGFILE = "pulp.cfg"
 if sys.platform in ['win32', 'cli']:
     PULPCFGFILE += ".win"
+elif sys.platform in ['darwin']:
+    PULPCFGFILE += ".osx"
 else:
     PULPCFGFILE += ".linux"