Как использовать CholmodSupport в Eigen3 под Ubuntu

Я сделал такой крошечный пример:

solver.h

#pragma once

#include <Eigen/Dense>
#include <Eigen/Sparse>
#include <Eigen/CholmodSupport>

typedef Eigen::SparseMatrix<double> SpMat;

class UseCholmodSolver
{
public:
UseCholmodSolver() {}
~UseCholmodSolver() {}
private:
Eigen::CholmodSupernodalLLT<SpMat> cholmod;
};

solver.cpp

#include "solver.h"

main.cpp

#include "solver.h"
int main()
{
return 0;
}

Makefile

CXXFLAGS=-g -O2 -Wall -DNDEBUG -I./ext/eigen -I/usr/include/suitesparse
CXX=g++

all: t1
clean:
rm -f *.o main

main.o: main.cpp solver.h
solver.o: solver.cpp solver.h

t1: main.o
$(CXX) main.o -o main -lcholmod
t2: main.o solver.o
$(CXX) main.o solver.o -o main -lcholmod

Когда я выполняю «make t1», все в порядке.
Однако, когда я набираю «make t2», возникают ошибки переопределения:

g++ main.o solver.o -o main -lcholmod
solver.o: In function `int Eigen::internal::cm_start<long>(cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:177: multiple definition of `int Eigen::internal::cm_start<long>(cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:177: first defined here
solver.o: In function `int Eigen::internal::cm_finish<long>(cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:178: multiple definition of `int Eigen::internal::cm_finish<long>(cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:178: first defined here
solver.o: In function `int Eigen::internal::cm_free_factor<long>(cholmod_factor_struct*&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:180: multiple definition of `int Eigen::internal::cm_free_factor<long>(cholmod_factor_struct*&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:180: first defined here
solver.o: In function `int Eigen::internal::cm_free_dense<long>(cholmod_dense_struct*&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:181: multiple definition of `int Eigen::internal::cm_free_dense<long>(cholmod_dense_struct*&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:181: first defined here
solver.o: In function `int Eigen::internal::cm_free_sparse<long>(cholmod_sparse_struct*&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:182: multiple definition of `int Eigen::internal::cm_free_sparse<long>(cholmod_sparse_struct*&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:182: first defined here
solver.o: In function `cholmod_factor_struct* Eigen::internal::cm_analyze<long>(cholmod_sparse_struct&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:184: multiple definition of `cholmod_factor_struct* Eigen::internal::cm_analyze<long>(cholmod_sparse_struct&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:184: first defined here
solver.o: In function `cholmod_dense_struct* Eigen::internal::cm_solve<long>(int, cholmod_factor_struct&, cholmod_dense_struct&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:187: multiple definition of `cholmod_dense_struct* Eigen::internal::cm_solve<long>(int, cholmod_factor_struct&, cholmod_dense_struct&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:187: first defined here
solver.o: In function `cholmod_sparse_struct* Eigen::internal::cm_spsolve<long>(int, cholmod_factor_struct&, cholmod_sparse_struct&, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:190: multiple definition of `cholmod_sparse_struct* Eigen::internal::cm_spsolve<long>(int, cholmod_factor_struct&, cholmod_sparse_struct&, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:190: first defined here
solver.o: In function `int Eigen::internal::cm_factorize_p<long>(cholmod_sparse_struct*, double*, long*, unsigned long, cholmod_factor_struct*, cholmod_common_struct&)':
/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:195: multiple definition of `int Eigen::internal::cm_factorize_p<long>(cholmod_sparse_struct*, double*, long*, unsigned long, cholmod_factor_struct*, cholmod_common_struct&)'
main.o:/home/xiang/Code/testEigen/./ext/eigen/Eigen/src/CholmodSupport/CholmodSupport.h:195: first defined here
collect2: error: ld returned 1 exit status
Makefile:14: recipe for target 't2' failed
make: *** [t2] Error 1

Кажется, причина в «длинном» типе специализированных шаблонных функций в «CholmodSupport.h». Есть идеи, чтобы решить эту проблему?