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- Log -----------------------------------------------------------------
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=0c6d0cc151a17bf9ecd00d7f98881e56810e6325
commit 0c6d0cc151a17bf9ecd00d7f98881e56810e6325
Merge: 042c07c 6286310
Author: Brad King <brad.k...@kitware.com>
AuthorDate: Mon Jun 9 10:27:26 2014 -0400
Commit: CMake Topic Stage <kwro...@kitware.com>
CommitDate: Mon Jun 9 10:27:26 2014 -0400
Merge topic 'WriteCompilerDetectionHeader-deprecated-define' into next
62863106 WCDH: Add compatibility defines for deprecation.
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=62863106f0e03a98d6de2fb8580162dce8702c1a
commit 62863106f0e03a98d6de2fb8580162dce8702c1a
Author: Stephen Kelly <steve...@gmail.com>
AuthorDate: Wed May 14 22:10:10 2014 +0200
Commit: Brad King <brad.k...@kitware.com>
CommitDate: Mon Jun 9 10:28:24 2014 -0400
WCDH: Add compatibility defines for deprecation.
diff --git a/Modules/WriteCompilerDetectionHeader.cmake
b/Modules/WriteCompilerDetectionHeader.cmake
index f80943d..6e64cd2 100644
--- a/Modules/WriteCompilerDetectionHeader.cmake
+++ b/Modules/WriteCompilerDetectionHeader.cmake
@@ -133,16 +133,37 @@
# ``static_assert``, or ignored if using the backward compatibility
# implementation.
#
-# ====================== ================================ ===================
-# Feature Define Symbol
-# ====================== ================================ ===================
-# ``cxx_alignas`` ``<PREFIX>_ALIGNAS`` ``alignas``
-# ``cxx_alignof`` ``<PREFIX>_ALIGNOF`` ``alignof``
-# ``cxx_nullptr`` ``<PREFIX>_NULLPTR`` ``nullptr``
-# ``cxx_static_assert`` ``<PREFIX>_STATIC_ASSERT`` ``static_assert``
-# ``cxx_static_assert`` ``<PREFIX>_STATIC_ASSERT_MSG`` ``static_assert``
-# ====================== ================================ ===================
-
+# The ``cxx_attribute_deprecated`` feature provides a macro definition
+# ``<PREFIX>_DEPRECATED``, which expands to either the standard
+# ``[[deprecated]]`` attribute or a compiler-specific decorator such
+# as ``__attribute__((__deprecated__))`` used by GNU compilers.
+#
+# ============================= ================================
=====================
+# Feature Define Symbol
+# ============================= ================================
=====================
+# ``cxx_alignas`` ``<PREFIX>_ALIGNAS`` ``alignas``
+# ``cxx_alignof`` ``<PREFIX>_ALIGNOF`` ``alignof``
+# ``cxx_nullptr`` ``<PREFIX>_NULLPTR`` ``nullptr``
+# ``cxx_static_assert`` ``<PREFIX>_STATIC_ASSERT``
``static_assert``
+# ``cxx_static_assert`` ``<PREFIX>_STATIC_ASSERT_MSG``
``static_assert``
+# ``cxx_attribute_deprecated`` ``<PREFIX>_DEPRECATED``
``[[deprecated]]``
+# ``cxx_attribute_deprecated`` ``<PREFIX>_DEPRECATED_MSG``
``[[deprecated]]``
+# ============================= ================================
=====================
+#
+# A use-case which arises with such deprecation macros is the deprecation
+# of an entire library. In that case, all public API in the library may
+# be decorated with the ``<PREFIX>_DEPRECATED`` macro. This results in
+# very noisy build output when building the library itself, so the macro
+# may be may be defined to empty in that case when building the deprecated
+# library:
+#
+# .. code-block:: cmake
+#
+# add_library(compat_support ${srcs})
+# target_compile_definitions(compat_support
+# PRIVATE
+# CompatSupport_DEPRECATED=
+# )
#=============================================================================
# Copyright 2014 Stephen Kelly <steve...@gmail.com>
@@ -402,6 +423,27 @@ function(write_compiler_detection_header
# endif
\n")
endif()
+ if (feature STREQUAL cxx_attribute_deprecated)
+ set(def_name ${prefix_arg}_${feature_PP})
+ set(def_value "${prefix_arg}_DEPRECATED")
+ set(file_content "${file_content}
+# ifndef ${def_value}
+# if ${def_name}
+# define ${def_value} [[deprecated]]
+# define ${def_value}_MSG(MSG) [[deprecated(MSG)]]
+# elif defined(__GNUC__) || defined(__clang__)
+# define ${def_value} __attribute__((__deprecated__))
+# define ${def_value}_MSG(MSG) __attribute__((__deprecated__(MSG)))
+# elif defined(_MSC_VER)
+# define ${def_value} __declspec(deprecated)
+# define ${def_value}_MSG(MSG) __declspec(deprecated(MSG))
+# else
+# define ${def_value}
+# define ${def_value}_MSG(MSG)
+# endif
+# endif
+\n")
+ endif()
endforeach()
set(file_content "${file_content}#endif\n")
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