[llvm] [offload] Add Windows offload support (PR #187006)

[Michael Kruse via llvm-commits]

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@@ -9,11 +9,19 @@ add_public_tablegen_target(PluginErrcodes)
 
 # NOTE: Don't try to build `PluginInterface` using `add_llvm_library` because we
 # don't want to export `PluginInterface` while `add_llvm_library` requires that.
+
+# Use platform-specific RPC implementation
+if(WIN32)
+  set(RPC_SOURCE src/RPC_Windows.cpp)
+else()
+  set(RPC_SOURCE src/RPC.cpp)
+endif()
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Meinersbur wrote:

Did you consider following the method already used by LLVM?:

https://github.com/llvm/llvm-project/blob/c7c9b25e8b4efd338aadaa3c2ad744faa6422964/llvm/lib/Support/Process.cpp#L120-L126

https://github.com/llvm/llvm-project/pull/187006