Don't create native-cuda folder without CUDA

Author: chillenzer

examples/CMakeLists.txt

@@ -12,13 +12,22 @@ add_subdirectory(
     ${CMAKE_BINARY_DIR}/examples/getAvailableSlots
 )
 
-add_subdirectory(
+check_language(CUDA)
+if (CMAKE_CUDA_COMPILER AND alpaka_ACC_GPU_CUDA_ENABLE)
+  add_subdirectory(
     ${CMAKE_CURRENT_LIST_DIR}/native-cuda
     ${CMAKE_BINARY_DIR}/examples/native-cuda
-)
+  )
 
-add_custom_target(
+  add_custom_target(
     mallocMCExamples
     DEPENDS mallocMCExampleVectorAdd mallocMCExampleGetAvailableSlots mallocMCExampleNativeCuda
     COMMENT "Shortcut for building all examples."
-)
+  )
+else()
+  add_custom_target(
+    mallocMCExamples
+    DEPENDS mallocMCExampleVectorAdd mallocMCExampleGetAvailableSlots
+    COMMENT "Shortcut for building all examples."
+  )
+endif()

examples/native-cuda/CMakeLists.txt

@@ -1,34 +1,31 @@
 cmake_minimum_required(VERSION 3.14...3.22)
 
-check_language(CUDA)
-if (CMAKE_CUDA_COMPILER)
-  project(mallocMCExampleNativeCuda LANGUAGES CXX CUDA)
+project(mallocMCExampleNativeCuda LANGUAGES CXX CUDA)
 
-  # --- Import tools ----
+# --- Import tools ----
 
-  include(${CMAKE_CURRENT_LIST_DIR}/../../cmake/tools.cmake)
+include(${CMAKE_CURRENT_LIST_DIR}/../../cmake/tools.cmake)
 
-  # ---- Dependencies ----
+# ---- Dependencies ----
 
-  include(${CMAKE_CURRENT_LIST_DIR}/../../cmake/CPM_0.40.2.cmake)
-  CPMUsePackageLock(${CMAKE_CURRENT_LIST_DIR}/../../cmake/package-lock.cmake)
+include(${CMAKE_CURRENT_LIST_DIR}/../../cmake/CPM_0.40.2.cmake)
+CPMUsePackageLock(${CMAKE_CURRENT_LIST_DIR}/../../cmake/package-lock.cmake)
 
-  if(NOT TARGET mallocMC)
-    CPMAddPackage(NAME mallocMC SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
-  endif()
+if(NOT TARGET mallocMC)
+  CPMAddPackage(NAME mallocMC SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
+endif()
 
-  # ---- Create standalone executable ----
+# ---- Create standalone executable ----
 
-  add_executable(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/source/main.cu)
+add_executable(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/source/main.cu)
 
-  set_target_properties(${PROJECT_NAME}
+set_target_properties(${PROJECT_NAME}
     PROPERTIES
         CXX_STANDARD 20
         OUTPUT_NAME ${PROJECT_NAME}
         CXX_STANDARD_REQUIRED ON
         CXX_EXTENSIONS OFF
   )
 
-  target_link_libraries(${PROJECT_NAME} mallocMC::mallocMC ${CUDA_LIBRARIES})
-  add_test(NAME ${PROJECT_NAME} COMMAND ${PROJECT_NAME})
-endif()
+target_link_libraries(${PROJECT_NAME} mallocMC::mallocMC ${CUDA_LIBRARIES})
+add_test(NAME ${PROJECT_NAME} COMMAND ${PROJECT_NAME})