diff --git a/cmake/add_warning.cmake b/cmake/add_warning.cmake
index bc9642c9cc6..e7797fcc7a6 100644
--- a/cmake/add_warning.cmake
+++ b/cmake/add_warning.cmake
@@ -12,13 +12,13 @@ macro (add_warning flag)
     if (SUPPORTS_CXXFLAG_${underscored_flag})
         set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -W${flag}")
     else ()
-        message (WARNING "Flag -W${flag} is unsupported")
+        message (STATUS "Flag -W${flag} is unsupported")
     endif ()
 
     if (SUPPORTS_CFLAG_${underscored_flag})
         set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -W${flag}")
     else ()
-        message (WARNING "Flag -W${flag} is unsupported")
+        message (STATUS "Flag -W${flag} is unsupported")
     endif ()
 
 endmacro ()
@@ -39,7 +39,7 @@ macro (target_add_warning target flag)
     if (SUPPORTS_CXXFLAG_${underscored_flag})
         target_compile_options (${target} PRIVATE "-W${flag}")
     else ()
-        message (WARNING "Flag -W${flag} is unsupported")
+        message (STATUS "Flag -W${flag} is unsupported")
     endif ()
 endmacro ()
 
diff --git a/contrib/protobuf-cmake/CMakeLists.txt b/contrib/protobuf-cmake/CMakeLists.txt
index 82e212417ac..484524f4278 100644
--- a/contrib/protobuf-cmake/CMakeLists.txt
+++ b/contrib/protobuf-cmake/CMakeLists.txt
@@ -211,7 +211,9 @@ add_library(protobuf::libprotoc ALIAS libprotoc)
 
 set(protoc_files ${protobuf_source_dir}/src/google/protobuf/compiler/main.cc)
 
-if (NOT CMAKE_CROSSCOMPILING)
+if (CMAKE_HOST_SYSTEM_NAME STREQUAL CMAKE_SYSTEM_NAME
+    AND CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL CMAKE_SYSTEM_PROCESSOR)
+
     add_executable(protoc ${protoc_files})
     target_link_libraries(protoc libprotoc libprotobuf pthread)
     add_executable(protobuf::protoc ALIAS protoc)