invalid conversion from ‘int’ to ‘Eigen::ComputationInfo’ [-fpermissive]

[zhenglongyu]

When I compiled efusion using the order: make slambench APPS=efusion, it appears. And I don't know how to resolve it. I have tried different versions of eigen such as 3.3.7,3.3.6 and 3.3.3, but all gets the same error. My system is ubuntu 16.04 and the output is here:
[ 81%] Built target benchmark_loader
make[3]: Entering directory '/home/jade/project/slambench2/build'
make[3]: Leaving directory '/home/jade/project/slambench2/build'
make[3]: Entering directory '/home/jade/project/slambench2/build'
[ 82%] Building CXX object benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/efusion_library.cpp.o
In file included from /usr/include/X11/Xlib.h:44:0,
from /home/jade/project/slambench2/benchmarks/efusion/src/original/context_helper.h:10,
from /home/jade/project/slambench2/benchmarks/efusion/src/original/efusion_library.cpp:19:
/usr/local/include/eigen3/Eigen/src/IterativeLinearSolvers/BasicPreconditioners.h: In member function ‘Eigen::ComputationInfo Eigen::IdentityPreconditioner::info()’:
/usr/local/include/eigen3/Eigen/src/IterativeLinearSolvers/BasicPreconditioners.h:221:37: error: invalid conversion from ‘int’ to ‘Eigen::ComputationInfo’ [-fpermissive]
ComputationInfo info() { return Success; }
^
/home/jade/project/slambench2/benchmarks/efusion/src/original/efusion_library.cpp: At global scope:
/home/jade/project/slambench2/benchmarks/efusion/src/original/efusion_library.cpp:275:48: warning: unused parameter ‘slam_settings’ [-Wunused-parameter]
bool sb_update_frame (SLAMBenchLibraryHelper * slam_settings, slambench::io::SL
^
/home/jade/project/slambench2/benchmarks/efusion/src/original/efusion_library.cpp:302:49: warning: unused parameter ‘slam_settings’ [-Wunused-parameter]
bool sb_process_once (SLAMBenchLibraryHelper * slam_settings) {
^
benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/build.make:540: recipe for target 'benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/efusion_library.cpp.o' failed
make[3]: *** [benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/efusion_library.cpp.o] Error 1
make[3]: Leaving directory '/home/jade/project/slambench2/build'
CMakeFiles/Makefile2:1076: recipe for target 'benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/all' failed
make[2]: *** [benchmarks/efusion/src/original/CMakeFiles/efusion-cuda.dir/all] Error 2
make[2]: Leaving directory '/home/jade/project/slambench2/build'
Makefile:127: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/home/jade/project/slambench2/build'
Makefile:188: recipe for target 'slambench' failed
make: *** [slambench] Error 2