Fixing umfpack when EIGEN is not present

src/CMakeLists.txt

@@ -36,6 +36,7 @@ if(PETSC_FOUND)
 	target_include_directories (numerics PUBLIC ${PETSC_INCLUDES})
 	target_link_libraries(numerics ${PETSC_LIBRARIES})
 endif()
+message("CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC ${SUITESPARSE_LIBRARIES}")
 if(SUITESPARSE_FOUND)
         target_include_directories (numerics PUBLIC ${SUITESPARSE_INCLUDE_DIRS})
         target_link_libraries(numerics ${SUITESPARSE_LIBRARIES})

src/Solvers/umfpack_solver.hpp

@@ -151,6 +151,12 @@ public:
 	{
 		std::cerr << __FILE__ << ":" << __LINE__ << " Error Umfpack only support double precision" << "/n";
 	}
+
+	//! stub solve
+	static Vector<double,EIGEN_BASE> try_solve(SparseMatrix<double,int,EIGEN_BASE> & A, const Vector<double,EIGEN_BASE> & b, size_t opt = UMFPACK_NONE)
+	{
+		std::cerr << __FILE__ << ":" << __LINE__ << " Error Umfpack only support double precision" << "/n";
+	}
 };
 
 //! stub when library compiled without eigen
@@ -175,6 +181,12 @@ public:
 	{
 		std::cerr << __FILE__ << ":" << __LINE__ << " Error in order to use umfpack you must compile OpenFPM with linear algebra support" << "/n";
 	}
+
+	//! stub solve
+	static Vector<double,EIGEN_BASE> try_solve(SparseMatrix<double,int,EIGEN_BASE> & A, const Vector<double,EIGEN_BASE> & b, size_t opt = UMFPACK_NONE)
+	{
+		std::cerr << __FILE__ << ":" << __LINE__ << " Error in order to use umfpack you must compile OpenFPM with linear algebra support" << "/n";
+	}
 };
 
 #endif