Add CUDA_STATIC_MATH_LIBRARIES (#4526)

Usage of the CUDA math libraries is independent of the CUDA runtime. Make their static/shared status separately controllable.

Contributes to rapidsai/build-planning#35

Authors:
  - Kyle Edwards (https://github.com/KyleFromNVIDIA)

Approvers:
  - Robert Maynard (https://github.com/robertmaynard)
  - Vyas Ramasubramani (https://github.com/vyasr)

URL: #4526

cpp/libcugraph_etl/CMakeLists.txt

@@ -53,13 +53,14 @@ option(BUILD_SHARED_LIBS "Build cuGraph shared libraries" ON)
 option(BUILD_CUGRAPH_ETL_MG_TESTS "Build cuGraph multigpu algorithm tests" OFF)
 option(CMAKE_CUDA_LINEINFO "Enable the -lineinfo option for nvcc (useful for cuda-memcheck / profiler" OFF)
 option(BUILD_TESTS "Configure CMake to build tests" ON)
-option(CUDA_STATIC_RUNTIME "Statically link the CUDA toolkit runtime and libraries" OFF)
+option(CUDA_STATIC_RUNTIME "Statically link the CUDA runtime" OFF)
+option(CUDA_STATIC_MATH_LIBRARIES "Statically link the CUDA math libraries" OFF)
 
 ################################################################################
 # - compiler options -----------------------------------------------------------
 
 set(_ctk_static_suffix "")
-if(CUDA_STATIC_RUNTIME)
+if(CUDA_STATIC_MATH_LIBRARIES)
   set(_ctk_static_suffix "_static")
 endif()