Ticket #465: 561cac8fe04f.patch

CMakeLists.txt

@@ -61 +61 @@
 
 FIND_PACKAGE(Doxygen)
 FIND_PACKAGE(Ghostscript)
-FIND_PACKAGE(GLPK 4.33)
-FIND_PACKAGE(CPLEX)
-FIND_PACKAGE(COIN)
+
+SET(LEMON_ENABLE_GLPK YES CACHE STRING "Enable GLPK solver backend.")
+SET(LEMON_ENABLE_CPLEX YES CACHE STRING "Enable CPLEX solver backend.")
+SET(LEMON_ENABLE_COIN YES CACHE STRING "Enable COIN solver backend.")
+
+IF(LEMON_ENABLE_GLPK) 
+  FIND_PACKAGE(GLPK 4.33)
+ENDIF(LEMON_ENABLE_GLPK)
+IF(LEMON_ENABLE_CPLEX)
+  FIND_PACKAGE(CPLEX)
+ENDIF(LEMON_ENABLE_CPLEX)
+IF(LEMON_ENABLE_COIN)
+  FIND_PACKAGE(COIN)
+ENDIF(LEMON_ENABLE_COIN)
+
+IF(GLPK_FOUND)
+  SET(LEMON_HAVE_LP TRUE)
+  SET(LEMON_HAVE_MIP TRUE)
+  SET(LEMON_HAVE_GLPK TRUE)
+ENDIF(GLPK_FOUND)
+IF(CPLEX_FOUND)
+  SET(LEMON_HAVE_LP TRUE)
+  SET(LEMON_HAVE_MIP TRUE)
+  SET(LEMON_HAVE_CPLEX TRUE)
+ENDIF(CPLEX_FOUND)
+IF(COIN_FOUND)
+  SET(LEMON_HAVE_LP TRUE)
+  SET(LEMON_HAVE_MIP TRUE)
+  SET(LEMON_HAVE_CLP TRUE)
+  SET(LEMON_HAVE_CBC TRUE)
+ENDIF(COIN_FOUND)
+
+IF(CPLEX_FOUND)
+  SET(DEFAULT_LP "CPLEX")
+  SET(DEFAULT_MIP "CPLEX")
+ELSEIF(COIN_FOUND)
+  SET(DEFAULT_LP "CLP")
+  SET(DEFAULT_MIP "CBC")
+ELSEIF(GLPK_FOUND)
+  SET(DEFAULT_LP "GLPK")
+  SET(DEFAULT_MIP "GLPK")
+ENDIF()
+
+IF(NOT LEMON_DEFAULT_LP OR
+    (NOT CPLEX_FOUND AND (LEMON_DEFAULT_LP STREQUAL "CPLEX")) OR
+    (NOT COIN_FOUND AND (LEMON_DEFAULT_LP STREQUAL "CLP")) OR
+    (NOT GLPK_FOUND AND (LEMON_DEFAULT_LP STREQUAL "GLPK")))
+  SET(LEMON_DEFAULT_LP ${DEFAULT_LP} CACHE STRING
+    "Default LP solver backend (GLPK, CPLEX or CLP)" FORCE)
+ENDIF()
+IF(NOT LEMON_DEFAULT_MIP OR
+    (NOT CPLEX_FOUND AND (LEMON_DEFAULT_MIP STREQUAL "CPLEX")) OR
+    (NOT COIN_FOUND AND (LEMON_DEFAULT_MIP STREQUAL "CBC")) OR
+    (NOT GLPK_FOUND AND (LEMON_DEFAULT_MIP STREQUAL "GLPK")))
+  SET(LEMON_DEFAULT_MIP ${DEFAULT_MIP} CACHE STRING
+    "Default MIP solver backend (GLPK, CPLEX or CBC)" FORCE)
+ENDIF()
+
 
 IF(DEFINED ENV{LEMON_CXX_WARNING})
   SET(CXX_WARNING $ENV{LEMON_CXX_WARNING})

INSTALL

@@ -134 +134 @@
   See http://docs.mathjax.org/en/latest/installation.html for more details.
 
   
+-DLEMON_ENABLE_GLPK=NO
+-DLEMON_ENABLE_COIN=NO
+-DLEMON_ENABLE_CPLEX=NO
+
+  Enable optional third party libraries. They are all enabled by default. 
+
+-DLEMON_DEFAULT_LP=GLPK
+
+  Sets the default LP solver backend. The supported values are
+  CPLEX, CLP and GLPK. By default, it is set to the first one which
+  is enabled and succesfully discovered.
+
+-DLEMON_DEFAULT_MIP=GLPK
+
+  Sets the default MIP solver backend. The supported values are
+  CPLEX, CBC and GLPK. By default, it is set to the first one which
+  is enabled and succesfully discovered.
+
 -DGLPK_ROOT_DIR=DIRECTORY
 -DCOIN_ROOT_DIR=DIRECTORY
 -DCPLEX_ROOT_DIR=DIRECTORY
 
-  Install root directory prefixes of optional third party libraries.
+  Root directory prefixes of optional third party libraries.
 
 Makefile Variables
 ==================

cmake/FindCOIN.cmake

@@ -108 +108 @@
   COIN_ZLIB_LIBRARY
   COIN_BZ2_LIBRARY
 )
-
-IF(COIN_FOUND)
-  SET(LEMON_HAVE_LP TRUE)
-  SET(LEMON_HAVE_MIP TRUE)
-  SET(LEMON_HAVE_CLP TRUE)
-  SET(LEMON_HAVE_CBC TRUE)
-ENDIF(COIN_FOUND)

cmake/FindCPLEX.cmake

@@ -32 +32 @@
 ENDIF(CPLEX_FOUND)
 
 MARK_AS_ADVANCED(CPLEX_LIBRARY CPLEX_INCLUDE_DIR CPLEX_BIN_DIR)
-
-IF(CPLEX_FOUND)
-  SET(LEMON_HAVE_LP TRUE)
-  SET(LEMON_HAVE_MIP TRUE)
-  SET(LEMON_HAVE_CPLEX TRUE)
-ENDIF(CPLEX_FOUND)

cmake/FindGLPK.cmake

@@ -53 +53 @@
 ENDIF(GLPK_FOUND)
 
 MARK_AS_ADVANCED(GLPK_LIBRARY GLPK_INCLUDE_DIR GLPK_BIN_DIR)
-
-IF(GLPK_FOUND)
-  SET(LEMON_HAVE_LP TRUE)
-  SET(LEMON_HAVE_MIP TRUE)
-  SET(LEMON_HAVE_GLPK TRUE)
-ENDIF(GLPK_FOUND)

lemon/cbc.h

@@ -16 +16 @@
  *
  */
 
-// -*- C++ -*-
 #ifndef LEMON_CBC_H
 #define LEMON_CBC_H
 

lemon/config.h.in

@@ -6 +6 @@
 #cmakedefine LEMON_HAVE_CPLEX 1
 #cmakedefine LEMON_HAVE_CLP 1
 #cmakedefine LEMON_HAVE_CBC 1
+#cmakedefine LEMON_DEFAULT_LP @LEMON_DEFAULT_LP@
+#cmakedefine LEMON_DEFAULT_MIP @LEMON_DEFAULT_MIP@
 #cmakedefine LEMON_USE_PTHREAD 1
 #cmakedefine LEMON_USE_WIN32_THREADS 1

lemon/lp.h

@@ -59 +59 @@
   ///The default MIP solver identifier.
   ///\ingroup lp_group
   ///
-  ///Currently, the possible values are \c GLPK or \c CPLEX
+  ///Currently, the possible values are \c GLPK, \c CPLEX or \c CBC
 #define LEMON_DEFAULT_MIP SOLVER
   ///The default MIP solver.
 
   ///The default MIP solver.
   ///\ingroup lp_group
   ///
-  ///Currently, it is either \c GlpkMip or \c CplexMip
+  ///Currently, it is either \c GlpkMip, \c CplexMip , \c CbcMip
   typedef GlpkMip Mip;
 #else
-#ifdef LEMON_HAVE_GLPK
-# define LEMON_DEFAULT_LP GLPK
+#if LEMON_DEFAULT_LP == GLPK
   typedef GlpkLp Lp;
-# define LEMON_DEFAULT_MIP GLPK
-  typedef GlpkMip Mip;
-#elif LEMON_HAVE_CPLEX
-# define LEMON_DEFAULT_LP CPLEX
+#elif LEMON_DEFAULT_LP == CPLEX
   typedef CplexLp Lp;
-# define LEMON_DEFAULT_MIP CPLEX
+#elif LEMON_DEFAULT_LP == SOPLEX
+  typedef SoplexLp Lp;
+#elif LEMON_DEFAULT_LP == CLP
+  typedef ClpLp Lp;
+#endif
+#if LEMON_DEFAULT_MIP == GLPK
+  typedef GlpkLp Mip;
+#elif LEMON_DEFAULT_MIP == CPLEX
   typedef CplexMip Mip;
-#elif LEMON_HAVE_SOPLEX
-# define DEFAULT_LP SOPLEX
-  typedef SoplexLp Lp;
-#elif LEMON_HAVE_CLP
-# define DEFAULT_LP CLP
-  typedef ClpLp Lp;
+#elif LEMON_DEFAULT_MIP == CBC
+  typedef CbcMip Mip;
 #endif
 #endif
 

test/lp_test.cc

@@ -240 +240 @@
 
   {
     LP::DualExpr e,f,g;
-    LP::Row p1 = INVALID, p2 = INVALID, p3 = INVALID,
-      p4 = INVALID, p5 = INVALID;
+    LP::Row p1 = INVALID, p2 = INVALID;
 
     e[p1]=2;
     e[p1]+=2;