Add a BOTAN_DEPRECATED macro which can provide compile-time

deprecation warnings (at least for GCC and VC++). Use in some places.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/build-data/buildh.in b/src/build-data/buildh.in
index 03f8b8f2e..53c66e133 100644
--- a/src/build-data/buildh.in
+++ b/src/build-data/buildh.in
@@ -57,12 +57,23 @@
 
 %{target_compiler_defines}
 
-#if defined(BOTAN_BUILD_COMPILER_IS_MSVC)
+#if defined(_MSC_VER)
   // 4250: inherits via dominance (diamond inheritence issue)
   // 4251: needs DLL interface (STL DLL exports)
   #pragma warning(disable: 4250 4251)
 #endif
 
+/*
+* Compile-time deprecatation warnings
+*/
+#if defined(__GNUG__)
+  #define BOTAN_DEPRECATED(msg) __attribute__ ((deprecated, warning(why)))
+#elif defined(_MSC_VER)
+  #define BOTAN_DEPRECATED(msg) __declspec(deprecated(why))
+#else
+  #define BOTAN_DEPRECATED(msg)
+#endif
+
 /* Module definitions */
 %{module_defines}