Change to Boost_LIBS instead of Boost_Libraries

See if that solves linker errror

src/CMakeLists.txt

@@ -30,7 +30,7 @@ set_target_properties(sisso++
     LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
     RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
 )
-target_link_libraries(sisso++  ${LAPACK_LIBRARIES} ${MPI_LIBRARIES} -Wl,--rpath=${Boost_LIB_DIR} -Wl,--rpath=${LAPACK_DIR} ${Boost_LIBRARIES})
+target_link_libraries(sisso++  ${LAPACK_LIBRARIES} ${MPI_LIBRARIES} -Wl,--rpath=${Boost_LIB_DIR} -Wl,--rpath=${LAPACK_DIR} ${Boost_LIBS})
 install(TARGETS sisso++ DESTINATION ${CMAKE_CURRENT_LIST_DIR}/../bin/)
 
 if(USE_PYTHON)
@@ -59,8 +59,8 @@ if(USE_PYTHON)
         PREFIX ""
         SUFFIX ".so"
     )
-    # target_link_libraries(_sisso ${MPI_LIBRARIES} -Wl,--rpath=${PYTHON_PREFIX}/lib/ ${PYTHON_LAPACK_LIBRARIES} ${PYTHON_LIBRARIES}  -Wl,--rpath=${Boost_LIB_DIR} ${Boost_LIBRARIES})
-    target_link_libraries(_sisso ${MPI_LIBRARIES} -Wl,--rpath=${PYTHON_PREFIX}/lib/ ${LAPACK_LIBRARIES} ${PYTHON_LIBRARIES}  -Wl,--rpath=${Boost_LIB_DIR} ${Boost_LIBRARIES} ${Boost_PYTHON_LIBRARIES})
+    # target_link_libraries(_sisso ${MPI_LIBRARIES} -Wl,--rpath=${PYTHON_PREFIX}/lib/ ${PYTHON_LAPACK_LIBRARIES} ${PYTHON_LIBRARIES}  -Wl,--rpath=${Boost_LIB_DIR} ${Boost_LIBS})
+    target_link_libraries(_sisso ${MPI_LIBRARIES} -Wl,--rpath=${PYTHON_PREFIX}/lib/ ${LAPACK_LIBRARIES} ${PYTHON_LIBRARIES}  -Wl,--rpath=${Boost_LIB_DIR} ${Boost_LIBS} ${Boost_PYTHON_LIBRARIES})
     install(TARGETS _sisso DESTINATION "${PYTHON_INSTDIR}/sisso")
     install(DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/python/ DESTINATION ${PYTHON_INSTDIR}/sisso
         FILES_MATCHING PATTERN "*.py"