Add link to libscopmath in neuron as well

CMake/OpenAccHelper.cmake

@@ -66,12 +66,11 @@ if(CORENRN_ENABLE_GPU)
   # linking. Without this, we had problems with linking between the explicit CUDA (.cu) device code
   # and offloaded OpenACC/OpenMP code. Using -cuda when compiling seems to improve error messages in
   # some cases, and to be recommended by NVIDIA. We pass -gpu=cudaX.Y to ensure that OpenACC/OpenMP
-  # code is compiled with the same CUDA version as the explicit CUDA code.
-  # TODO nordc option is added based on the recommendation from:
-  #        https://forums.developer.nvidia.com/t/separate-compilation-of-mixed-cuda-openacc-code/192701
-  #      but as discussed in
-  #        https://github.com/BlueBrain/CoreNeuron/issues/141#issuecomment-1086742194
-  #      this is still not completely solving underlying link issue.
+  # code is compiled with the same CUDA version as the explicit CUDA code. TODO nordc option is
+  # added based on the recommendation from:
+  # https://forums.developer.nvidia.com/t/separate-compilation-of-mixed-cuda-openacc-code/192701 but
+  # as discussed in https://github.com/BlueBrain/CoreNeuron/issues/141#issuecomment-1086742194 this
+  # is still not completely solving underlying link issue.
   set(NVHPC_ACC_COMP_FLAGS "-cuda -gpu=cuda${CORENRN_CUDA_VERSION_SHORT},lineinfo")
   # Make sure that OpenACC code is generated for the same compute capabilities as the explicit CUDA
   # code. Otherwise there may be confusing linker errors. We cannot rely on nvcc and nvc++ using the
@@ -108,11 +107,11 @@ if(CORENRN_ENABLE_GPU)
     GLOBAL
     PROPERTY
       CORENEURON_LIB_LINK_FLAGS
-      "${NVHPC_ACC_COMP_FLAGS} -rdynamic -lrt -Wl,--whole-archive -L${CMAKE_HOST_SYSTEM_PROCESSOR} -lcorenrnmech -L$(libdir) -lcoreneuron -Wl,--no-whole-archive"
+      "${NVHPC_ACC_COMP_FLAGS} -rdynamic -lrt -Wl,--whole-archive -L${CMAKE_HOST_SYSTEM_PROCESSOR} -lcorenrnmech -lscopmath -L$(libdir) -lcoreneuron -Wl,--no-whole-archive"
   )
 else()
   set_property(GLOBAL PROPERTY CORENEURON_LIB_LINK_FLAGS
-                               "-L${CMAKE_HOST_SYSTEM_PROCESSOR} -lcorenrnmech")
+                               "-L${CMAKE_HOST_SYSTEM_PROCESSOR} -lcorenrnmech -lscopmath")
 endif(CORENRN_ENABLE_GPU)
 
 if(CORENRN_HAVE_NVHPC_COMPILER)