diff --git a/src/include/microhttpd.h b/src/include/microhttpd.h
index a9c5a440..b97652c9 100644
--- a/src/include/microhttpd.h
+++ b/src/include/microhttpd.h
@@ -198,6 +198,7 @@ typedef SOCKET MHD_socket;
  */
 #ifdef MHD_NO_DEPRECATION
 #define _MHD_DEPR_MACRO(msg)
+#define _MHD_DEPR_FUNC(msg)
 #endif /* MHD_NO_DEPRECATION */
 
 #ifndef _MHD_DEPR_MACRO
@@ -221,6 +222,24 @@ typedef SOCKET MHD_socket;
 #endif
 #endif /* _MHD_DEPR_MACRO */
 
+#ifndef _MHD_DEPR_FUNC
+#if defined(_MSC_FULL_VER) && _MSC_VER+0 >= 1400
+#define _MHD_DEPR_FUNC(msg) __declspec(deprecated(msg))
+#elif defined(_MSC_FULL_VER) && _MSC_VER+0 >= 1310
+/* VS .NET 2003 deprecation do not support custom messages */
+#define _MHD_DEPR_FUNC(msg) __declspec(deprecated)
+#elif defined (__clang__) && \
+  (__clang_major__+0 >= 4 || (!defined(__apple_build_version__) && __clang_major__+0 >= 3))
+#define _MHD_DEPR_FUNC(msg) __attribute__((deprecated(msg)))
+#elif defined (__clang__) || __GNUC__+0 > 3 || (__GNUC__+0 == 3 && __GNUC_MINOR__+0 >= 1)
+/* GCC-style deprecation do not support custom messages */
+#define _MHD_DEPR_FUNC(msg) __attribute__((__deprecated__))
+/* #elif defined(SOMEMACRO) */ /* add compiler-specific macros here if required */
+#else /* other compilers */
+#define _MHD_DEPR_FUNC(msg)
+#endif
+#endif /* _MHD_DEPR_FUNC */
+
 /**
  * Not all architectures and `printf()`'s support the `long long` type.
  * This gives the ability to replace `long long` with just a `long`,