Apply ProtoBuf Atomic patch

Author: Lord-Grey

dependencies/CMakeLists.txt

@@ -465,8 +465,15 @@ if(ENABLE_PROTOBUF_SERVER)
 			set(protobuf_BUILD_PROTOC_BINARIES OFF CACHE BOOL "Build protobuf libraries and protoc compiler")
 		endif()
 
+		include(FetchContent)
+
 		# Add Protobuf directory to the build
-		add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/external/protobuf")
+		FetchContent_Declare(
+			protobuf
+			SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/protobuf"
+			PATCH_COMMAND git apply "${CMAKE_CURRENT_SOURCE_DIR}/protobuf/atomic.diff"
+		)
+		FetchContent_MakeAvailable(protobuf)
 
 		if(CMAKE_CROSSCOMPILING)
 			if(IMPORT_PROTOC)
@@ -479,6 +486,7 @@ if(ENABLE_PROTOBUF_SERVER)
 					PREFIX				${CMAKE_BINARY_DIR}/dependencies/external/protoc-host
 					BUILD_ALWAYS		OFF
 					DOWNLOAD_COMMAND	""
+					PATCH_COMMAND		git apply "${CMAKE_CURRENT_SOURCE_DIR}/protobuf/atomic.diff"
 					INSTALL_COMMAND     ""
 					SOURCE_DIR			${CMAKE_CURRENT_SOURCE_DIR}/external/protobuf
 					CMAKE_ARGS          -Dprotobuf_BUILD_LIBPROTOC:BOOL=OFF

dependencies/protobuf/atomic.diff

@@ -0,0 +1,15 @@
+diff --git a/cmake/protobuf-configure-target.cmake b/cmake/protobuf-configure-target.cmake
+index c67c57056..171e0a8f0 100644
+--- a/cmake/protobuf-configure-target.cmake
++++ b/cmake/protobuf-configure-target.cmake
+@@ -7,8 +7,8 @@
+ 
+ # Refactors configuration options set on all Protobuf targets
+ function(protobuf_configure_target target)
+-    if(protobuf_LINK_LIBATOMIC)
+-        target_link_libraries(libprotobuf PRIVATE atomic)
++    if(protobuf_LINK_LIBATOMIC AND "${target}" STREQUAL "libprotobuf")
++        target_link_libraries("${target}" PRIVATE atomic)
+     endif()
+ 
+     target_compile_features("${target}" PUBLIC cxx_std_17)