server/native_transport/CMakeLists.txt

@@ -26,7 +26,17 @@ add_subdirectory("${GNS_SOURCE_DIR}" "${CMAKE_BINARY_DIR}/gns")
 add_library(commonwealth_online_gns_bridge SHARED co_gns_server_bridge.cpp)
 target_include_directories(commonwealth_online_gns_bridge PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
 target_compile_definitions(commonwealth_online_gns_bridge PRIVATE CO_GNS_BRIDGE_BUILD)
-target_compile_options(commonwealth_online_gns_bridge PRIVATE -Wall -Wextra -Werror)
+# steamnetworkingtypes.h declares several address helpers inline, while the
+# standalone definitions live in isteamnetworkingutils.h. Make that public GNS
+# utility header explicit for this translation unit instead of suppressing the
+# undefined-inline diagnostic.
+target_compile_options(commonwealth_online_gns_bridge PRIVATE
+    -Wall
+    -Wextra
+    -Werror
+    -include
+    steam/isteamnetworkingutils.h
+)
 target_link_libraries(commonwealth_online_gns_bridge PRIVATE GameNetworkingSockets::shared)
 set_target_properties(commonwealth_online_gns_bridge PROPERTIES OUTPUT_NAME "commonwealth_online_gns_bridge")