diff --git a/Help/release/dev/mingw-compile-features-C.rst b/Help/release/dev/mingw-compile-features-C.rst
new file mode 100644
index 000000000..b3f99f1f6
--- /dev/null
+++ b/Help/release/dev/mingw-compile-features-C.rst
@@ -0,0 +1,5 @@
+mingw-compile-features-C
+------------------------
+
+* The :manual:`Compile Features <cmake-compile-features(7)>` functionality
+  is now aware of features supported by GNU C compilers on Windows.
diff --git a/Modules/Compiler/GNU-C.cmake b/Modules/Compiler/GNU-C.cmake
index 89704e648..031ab7364 100644
--- a/Modules/Compiler/GNU-C.cmake
+++ b/Modules/Compiler/GNU-C.cmake
@@ -34,10 +34,10 @@ macro(cmake_record_c_compile_features)
   endmacro()
 
   set(_result 0)
-  if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.6)
+  if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.6)
     _get_gcc_features(${CMAKE_C11_STANDARD_COMPILE_OPTION} CMAKE_C11_COMPILE_FEATURES)
   endif()
-  if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
+  if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
     if (_result EQUAL 0)
       _get_gcc_features(${CMAKE_C99_STANDARD_COMPILE_OPTION} CMAKE_C99_COMPILE_FEATURES)
     endif()