update dx cuda-link

src/backends/dx/xmake.lua

@@ -1,31 +1,34 @@
 target("lc-backend-dx")
 _config_project({
-	project_kind = "shared",
-	batch_size = 8
+    project_kind = "shared",
+    batch_size = 8
 })
 add_deps("lc-runtime", "lc-vstl", "lc-hlsl-builtin")
 add_files("**.cpp", "../common/hlsl/*.cpp")
-add_headerfiles("**.h", "../common/default_binary_io.h",
-				"../common/hlsl/*.h")
+add_headerfiles("**.h", "../common/default_binary_io.h", "../common/hlsl/*.h")
 add_includedirs("./")
 add_syslinks("D3D12", "dxgi")
 if is_plat("windows") then
-	add_defines("UNICODE", "_CRT_SECURE_NO_WARNINGS")
+    add_defines("UNICODE", "_CRT_SECURE_NO_WARNINGS")
 end
 on_load(function(target)
-	local cuda_path = os.getenv("CUDA_PATH")
-	if cuda_path then
-		target:add("includedirs", path.join(cuda_path, "include/"))
-		target:add("linkdirs", path.join(cuda_path, "lib/x64/"))
-		target:add("links", "nvrtc", "cudart", "cuda")
-		target:add("defines", "LCDX_ENABLE_CUDA")
-		if is_plat("windows") then
-			target:add("syslinks", "Cfgmgr32", "Advapi32")
-		end
-	end
+    if get_config("cuda_backend") then
+        local cuda_path = os.getenv("CUDA_PATH")
+        if cuda_path then
+            target:add("includedirs", path.join(cuda_path, "include/"))
+            target:add("linkdirs", path.join(cuda_path, "lib/x64/"))
+            target:add("links", "nvrtc_static", "nvrtc-builtins_static", "cudart_static", "cuda")
+            target:add("defines", "LCDX_ENABLE_CUDA")
+            if is_plat("windows") then
+                target:add("syslinks", "Cfgmgr32", "Advapi32")
+            end
+        end
+    end
 end)
 set_pcxxheader("pch.h")
-add_rules('lc_install_sdk', {libnames = {'dx_sdk'}})
+add_rules('lc_install_sdk', {
+    libnames = {'dx_sdk'}
+})
 add_packages("zlib", {
     public = false,
     inherit = false