windows-cmake: optional cuda enabled

Signed-off-by: Michael Hirsch <michael@scivision.dev>

contrib/windows-cmake/CMakeLists.txt

@@ -79,6 +79,20 @@ if(OpenCL_FOUND)
     set(HWLOC_HAVE_OPENCL 1)
 endif()
 
+set(HAVE_CUDA)
+set(HAVE_CUDA_H)
+set(HAVE_CUDA_RUNTIME_API_H)
+set(HWLOC_HAVE_CUDART)
+if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.17)
+find_package(CUDAToolkit)
+if(CUDAToolkit_FOUND)
+    set(HAVE_CUDA 1)
+    set(HAVE_CUDA_H 1)
+    set(HAVE_CUDA_RUNTIME_API_H 1)
+    set(HWLOC_HAVE_CUDART 1)
+endif()
+endif()
+
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/private_config.h.in include/private/autogen/config.h)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/static-components.h.in include/static-components.h)
 
@@ -109,11 +123,13 @@ add_library(hwloc
     ${TOPDIR}/hwloc/topology-x86.c
     $<$<BOOL:${HWLOC_HAVE_LIBXML2}>:${TOPDIR}/hwloc/topology-xml-libxml.c>
     $<$<BOOL:${HWLOC_HAVE_OPENCL}>:${TOPDIR}/hwloc/topology-opencl.c>
+    $<$<BOOL:${HAVE_CUDA}>:${TOPDIR}/hwloc/topology-cuda.c>
 )
 
 target_link_libraries(hwloc PRIVATE
     $<$<BOOL:${HWLOC_HAVE_LIBXML2}>:LibXml2::LibXml2>
     $<$<BOOL:${HWLOC_HAVE_OPENCL}>:OpenCL::OpenCL>
+    "$<$<BOOL:${HAVE_CUDA}>:CUDA::cudart;CUDA::cuda_driver>"
 )
 
 if(BUILD_SHARED_LIBS)

contrib/windows-cmake/private_config.h.in

@@ -43,13 +43,13 @@
 /* #undef HAVE_CPUSET_SETID */
 
 /* Define to 1 if we have -lcuda */
-/* #undef HAVE_CUDA */
+#cmakedefine HAVE_CUDA @HAVE_CUDA@
 
 /* Define to 1 if you have the <cuda.h> header file. */
-/* #undef HAVE_CUDA_H */
+#cmakedefine HAVE_CUDA_H @HAVE_CUDA_H@
 
 /* Define to 1 if you have the <cuda_runtime_api.h> header file. */
-/* #undef HAVE_CUDA_RUNTIME_API_H */
+#cmakedefine HAVE_CUDA_RUNTIME_API_H @HAVE_CUDA_RUNTIME_API_H@
 
 /* Define to 1 if you have the declaration of `CL_DEVICE_TOPOLOGY_AMD', and to
    0 if you don't. */
@@ -448,7 +448,7 @@
 /* #undef HWLOC_HAVE_CPU_SET_S */
 
 /* Define to 1 if you have the `cudart' SDK. */
-/* #undef HWLOC_HAVE_CUDART */
+#cmakedefine HWLOC_HAVE_CUDART @HWLOC_HAVE_CUDART@
 
 /* Define to 1 if function `clz' is declared by system headers */
 /* #undef HWLOC_HAVE_DECL_CLZ */