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The branch, next has been updated via 1fac2911e1008224c9c0f0676e0e2b90d0cc25d4 (commit) via 998e9c10943ef361785e6f15cab1fa61172b1c24 (commit) via ec31926d24ac2cf9a8aef4cfbcbeaaca0c99b717 (commit) from 03a66cff114687d0d9e71a289b05a66259853d47 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=1fac2911e1008224c9c0f0676e0e2b90d0cc25d4 commit 1fac2911e1008224c9c0f0676e0e2b90d0cc25d4 Merge: 03a66cf 998e9c1 Author: Stephen Kelly <steve...@gmail.com> AuthorDate: Thu Jan 1 12:48:39 2015 -0500 Commit: CMake Topic Stage <kwro...@kitware.com> CommitDate: Thu Jan 1 12:48:39 2015 -0500 Merge topic 'WCDH-thread_local-portability' into next 998e9c10 WCDH: Add feature portability for thread_local. ec31926d CMake Nightly Date Stamp http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=998e9c10943ef361785e6f15cab1fa61172b1c24 commit 998e9c10943ef361785e6f15cab1fa61172b1c24 Author: Stephen Kelly <steve...@gmail.com> AuthorDate: Thu Jan 1 17:56:01 2015 +0100 Commit: Stephen Kelly <steve...@gmail.com> CommitDate: Thu Jan 1 18:20:10 2015 +0100 WCDH: Add feature portability for thread_local. AppleClang does not support the cxx_thread_local feature, even though it is based on a Clang version which does support the feature. http://stackoverflow.com/a/23850891/2428389 A possible reason for that is that thread_local might be used as a variable in existing Apple SDK headers. Extend the WriteCompilerDetectionHeader module to generate a define for that feature with portability fallbacks. For the avoidance of making it easy to write code which looks correct but which has odd runtime behavior, don't set the define symbol at all if no equivalent keyword is known. diff --git a/Help/release/dev/WCDH-thread_local.rst b/Help/release/dev/WCDH-thread_local.rst new file mode 100644 index 0000000..44516a7 --- /dev/null +++ b/Help/release/dev/WCDH-thread_local.rst @@ -0,0 +1,7 @@ +WriteCompilerDetectionHeader thread_local portability +----------------------------------------------------- + +* The :module:`WriteCompilerDetectionHeader` module learned to + create a define for portability of the cxx_thread_local feature. The define + expands to either the C++11 ``thread_local`` keyword, or a + pre-standardization compiler-specific equivalent, as appropriate. diff --git a/Modules/WriteCompilerDetectionHeader.cmake b/Modules/WriteCompilerDetectionHeader.cmake index 36b9706..d61358f 100644 --- a/Modules/WriteCompilerDetectionHeader.cmake +++ b/Modules/WriteCompilerDetectionHeader.cmake @@ -194,6 +194,7 @@ # ``cxx_static_assert`` ``<PREFIX>_STATIC_ASSERT_MSG`` ``static_assert`` # ``cxx_attribute_deprecated`` ``<PREFIX>_DEPRECATED`` ``[[deprecated]]`` # ``cxx_attribute_deprecated`` ``<PREFIX>_DEPRECATED_MSG`` ``[[deprecated]]`` +# ``cxx_thread_local`` ``<PREFIX>_THREAD_LOCAL`` ``thread_local`` # ============================= ================================ ===================== # # A use-case which arises with such deprecation macros is the deprecation @@ -573,6 +574,20 @@ function(write_compiler_detection_header # endif \n") endif() + if (feature STREQUAL cxx_thread_local) + set(def_value "${prefix_arg}_THREAD_LOCAL") + set(file_content "${file_content} +# if ${def_name} +# define ${def_value} thread_local +# elif ${prefix_arg}_COMPILER_IS_GNU || ${prefix_arg}_COMPILER_IS_Clang || ${prefix_arg}_COMPILER_IS_AppleClang +# define ${def_value} __thread +# elif ${prefix_arg}_COMPILER_IS_MSVC +# define ${def_value} __declspec(thread) +# else +// ${def_value} not defined for this configuration. +# endif +\n") + endif() if (feature STREQUAL cxx_attribute_deprecated) set(def_name ${prefix_arg}_${feature_PP}) set(def_value "${prefix_arg}_DEPRECATED") ----------------------------------------------------------------------- Summary of changes: Help/release/dev/WCDH-thread_local.rst | 7 +++++++ Modules/WriteCompilerDetectionHeader.cmake | 15 +++++++++++++++ Source/CMakeVersion.cmake | 2 +- 3 files changed, 23 insertions(+), 1 deletion(-) create mode 100644 Help/release/dev/WCDH-thread_local.rst hooks/post-receive -- CMake _______________________________________________ Cmake-commits mailing list Cmake-commits@cmake.org http://public.kitware.com/mailman/listinfo/cmake-commits