[Cmake-commits] CMake branch, next, updated. v3.1.0-2215-g7b307f3
Robert Maynard
robert.maynard at kitware.com
Mon Jan 19 15:50:45 EST 2015
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http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=7b307f3eb0a5cbc044370754a6b5883bf22c7e07
commit 7b307f3eb0a5cbc044370754a6b5883bf22c7e07
Merge: 4bb9d1e d275eb1
Author: Robert Maynard <robert.maynard at kitware.com>
AuthorDate: Mon Jan 19 15:50:44 2015 -0500
Commit: CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Mon Jan 19 15:50:44 2015 -0500
Merge topic 'feature-record-msvc' into next
d275eb11 Features: Record for MSVC 2010-2015.
9ab6fd96 Features: Exclude MSVC from Link Feature tests.
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d275eb11df7a090b5fb42882690783b5296619c6
commit d275eb11df7a090b5fb42882690783b5296619c6
Author: Robert Maynard <robert.maynard at kitware.com>
AuthorDate: Mon Jan 19 15:49:06 2015 -0500
Commit: Robert Maynard <robert.maynard at kitware.com>
CommitDate: Mon Jan 19 15:49:06 2015 -0500
Features: Record for MSVC 2010-2015.
Co-Author: Stephen Kelly <steveire at gmail.com>
Notes:
Initializer lists are only properly supported in 2015 and above.
Previous Visual Studio releases said they supported initializer lists
VS2012 and above to conform to cxx_decltype_incomplete_return_types
proposal, but without support for auto return types, the feature is unusable
so only state support in VS2015 and above.
VS2010 and above to conform to the updated cxx_contextual_conversions proposal.
diff --git a/Modules/Compiler/MSVC-CXX-FeatureTests.cmake b/Modules/Compiler/MSVC-CXX-FeatureTests.cmake
new file mode 100644
index 0000000..476f244
--- /dev/null
+++ b/Modules/Compiler/MSVC-CXX-FeatureTests.cmake
@@ -0,0 +1,100 @@
+
+# Reference: http://msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx
+# http://blogs.msdn.com/b/vcblog/archive/2013/06/28/c-11-14-stl-features-fixes-and-breaking-changes-in-vs-2013.aspx
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+# http://www.visualstudio.com/en-us/news/vs2015-preview-vs.aspx
+
+
+set(_cmake_oldestSupported "_MSC_VER >= 1600")
+
+set(MSVC_2015 "_MSC_VER >= 1900")
+set(_cmake_feature_test_cxx_alignas "${MSVC_2015}")
+set(_cmake_feature_test_cxx_alignof "${MSVC_2015}")
+set(_cmake_feature_test_cxx_binary_literals "${MSVC_2015}")
+set(_cmake_feature_test_cxx_decltype_auto "${MSVC_2015}")
+# In theory decltype incomplete return types was added in 2012
+# but without support for decltype_auto and return type deduction this
+# feature is unusable
+set(_cmake_feature_test_cxx_decltype_incomplete_return_types "${MSVC_2015}")
+set(_cmake_feature_test_cxx_digit_separators "${MSVC_2015}")
+set(_cmake_feature_test_cxx_func_identifier "${MSVC_2015}")
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+# Note 1. While previous version of VisualStudio said they supported this
+# they silently produced bad code, and are now marked as having partial
+# support
+set(_cmake_feature_test_cxx_generalized_initializers "${MSVC_2015}")
+set(_cmake_feature_test_cxx_generic_lambdas "${MSVC_2015}")
+set(_cmake_feature_test_cxx_inheriting_constructors "${MSVC_2015}")
+set(_cmake_feature_test_cxx_inline_namespaces "${MSVC_2015}")
+set(_cmake_feature_test_cxx_lambda_init_captures "${MSVC_2015}")
+set(_cmake_feature_test_cxx_noexcept "${MSVC_2015}")
+set(_cmake_feature_test_cxx_return_type_deduction "${MSVC_2015}")
+set(_cmake_feature_test_cxx_sizeof_member "${MSVC_2015}")
+set(_cmake_feature_test_cxx_thread_local "${MSVC_2015}")
+set(_cmake_feature_test_cxx_unicode_literals "${MSVC_2015}")
+set(_cmake_feature_test_cxx_unrestricted_unions "${MSVC_2015}")
+set(_cmake_feature_test_cxx_user_literals "${MSVC_2015}")
+
+set(MSVC_2013 "_MSC_VER >= 1800")
+set(_cmake_feature_test_cxx_alias_templates "${MSVC_2013}")
+set(_cmake_feature_test_cxx_default_function_template_args "${MSVC_2013}")
+set(_cmake_feature_test_cxx_defaulted_functions "${MSVC_2013}")
+set(_cmake_feature_test_cxx_delegating_constructors "${MSVC_2013}")
+set(_cmake_feature_test_cxx_deleted_functions "${MSVC_2013}")
+set(_cmake_feature_test_cxx_explicit_conversions "${MSVC_2013}")
+set(_cmake_feature_test_cxx_nonstatic_member_init "${MSVC_2013}")
+set(_cmake_feature_test_cxx_raw_string_literals "${MSVC_2013}")
+set(_cmake_feature_test_cxx_uniform_initialization "${MSVC_2013}")
+# Possibly broken:
+# http://thread.gmane.org/gmane.comp.lib.boost.devel/244986/focus=245333
+set(_cmake_feature_test_cxx_variadic_templates "${MSVC_2013}")
+
+set(MSVC_2012 "_MSC_VER >= 1700")
+set(_cmake_feature_test_cxx_enum_forward_declarations "${MSVC_2012}")
+set(_cmake_feature_test_cxx_final "${MSVC_2012}")
+set(_cmake_feature_test_cxx_range_for "${MSVC_2012}")
+set(_cmake_feature_test_cxx_strong_enums "${MSVC_2012}")
+
+set(MSVC_2010 "_MSC_VER >= 1600")
+set(_cmake_feature_test_cxx_auto_function "${MSVC_2010}")
+set(_cmake_feature_test_cxx_auto_type "${MSVC_2010}")
+# Microsoft now states they support contextual conversions
+# see footnote 6 at:
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+set(_cmake_feature_test_cxx_contextual_conversions "${MSVC_2010}")
+set(_cmake_feature_test_cxx_decltype "${MSVC_2010}")
+set(_cmake_feature_test_cxx_extended_friend_declarations "${MSVC_2010}")
+set(_cmake_feature_test_cxx_extern_templates "${MSVC_2010}")
+set(_cmake_feature_test_cxx_lambdas "${MSVC_2010}")
+set(_cmake_feature_test_cxx_local_type_template_args "${MSVC_2010}")
+set(_cmake_feature_test_cxx_long_long_type "${MSVC_2010}")
+set(_cmake_feature_test_cxx_nullptr "${MSVC_2010}")
+set(_cmake_feature_test_cxx_override "${MSVC_2010}")
+set(_cmake_feature_test_cxx_right_angle_brackets "${MSVC_2010}")
+set(_cmake_feature_test_cxx_rvalue_references "${MSVC_2010}")
+set(_cmake_feature_test_cxx_static_assert "${MSVC_2010}")
+set(_cmake_feature_test_cxx_template_template_parameters "${MSVC_2010}")
+set(_cmake_feature_test_cxx_trailing_return_types "${MSVC_2010}")
+set(_cmake_feature_test_cxx_variadic_macros "${MSVC_2010}")
+
+# Currently unsupported:
+# http://herbsutter.com/2013/11/18/visual-c-compiler-november-2013-ctp/
+# http://blogs.msdn.com/b/vcblog/archive/2014/11/17/c-11-14-17-features-in-vs-2015-preview.aspx
+
+# set(_cmake_feature_test_cxx_reference_qualified_functions )
+# set(_cmake_feature_test_cxx_constexpr )
+# set(_cmake_feature_test_cxx_attributes )
+# set(_cmake_feature_test_cxx_aggregate_default_initializers )
+# set(_cmake_feature_test_cxx_attribute_deprecated )
+# set(_cmake_feature_test_cxx_defaulted_move_initializers )
+# set(_cmake_feature_test_cxx_nonstatic_member_init )
+# set(_cmake_feature_test_cxx_relaxed_constexpr )
+# set(_cmake_feature_test_cxx_variable_templates )
+
+
+# Unset all the variables that we don't need exposed.
+# _cmake_oldestSupported is required by WriteCompilerDetectionHeader
+set(MSVC_2015)
+set(MSVC_2013)
+set(MSVC_2012)
+set(MSVC_2010)
diff --git a/Modules/Platform/Windows-MSVC-CXX.cmake b/Modules/Platform/Windows-MSVC-CXX.cmake
index 0e85005..ad56f68 100644
--- a/Modules/Platform/Windows-MSVC-CXX.cmake
+++ b/Modules/Platform/Windows-MSVC-CXX.cmake
@@ -4,3 +4,12 @@ if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
set(_FS_CXX " /FS")
endif()
__windows_compiler_msvc(CXX)
+
+# No version of MSVC has full conformance to C++11. Therefore the
+# __cplusplus macro always evaluates to 98 even if the compilers come with
+# C++11/14/+ features enabled.
+set(CMAKE_CXX_STANDARD_DEFAULT 98)
+
+macro(cmake_record_cxx_compile_features)
+ record_compiler_features(CXX "" CMAKE_CXX_COMPILE_FEATURES)
+endmacro()
diff --git a/Modules/WriteCompilerDetectionHeader.cmake b/Modules/WriteCompilerDetectionHeader.cmake
index e81bc08..5642c99 100644
--- a/Modules/WriteCompilerDetectionHeader.cmake
+++ b/Modules/WriteCompilerDetectionHeader.cmake
@@ -36,7 +36,7 @@
# PREFIX ClimbingStats
# OUTPUT_FILES_VAR support_files
# OUTPUT_DIR compilers
-# COMPILERS GNU Clang
+# COMPILERS GNU Clang MSVC
# FEATURES cxx_variadic_templates
# )
# install(FILES
@@ -100,7 +100,7 @@
# write_compiler_detection_header(
# FILE climbingstats_compiler_detection.h
# PREFIX ClimbingStats
-# COMPILERS GNU Clang AppleClang
+# COMPILERS GNU Clang AppleClang MSVC
# FEATURES cxx_variadic_templates
# )
#
@@ -321,6 +321,7 @@ function(write_compiler_detection_header
GNU
Clang
AppleClang
+ MSVC
SunPro
)
diff --git a/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt b/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt
index b5e46c0..43e89ab 100644
--- a/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt
+++ b/Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt
@@ -11,7 +11,7 @@ get_property(c_known_features GLOBAL PROPERTY CMAKE_C_KNOWN_FEATURES)
write_compiler_detection_header(
FILE "${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection.h"
PREFIX TEST
- COMPILERS GNU Clang AppleClang SunPro
+ COMPILERS GNU Clang AppleClang MSVC SunPro
VERSION 3.1
PROLOG "// something"
EPILOG "// more"
@@ -67,6 +67,18 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
list(APPEND false_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
endif()
+# for msvc the compiler version determines which c++11 features are available.
+# Both variadic templates and delegating constructors support exist in
+# all versions that we write compile headers for.
+if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND
+ ";${CMAKE_CXX_COMPILE_FEATURES};" MATCHES ";cxx_delegating_constructors;")
+ list(APPEND true_defs EXPECTED_COMPILER_CXX_DELEGATING_CONSTRUCTORS)
+ list(APPEND true_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
+else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+ list(APPEND false_defs EXPECTED_COMPILER_CXX_DELEGATING_CONSTRUCTORS)
+ list(APPEND false_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
+endif()
+
if (CMAKE_C_COMPILER_ID STREQUAL "GNU"
OR CMAKE_C_COMPILER_ID STREQUAL "Clang"
OR CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
@@ -84,7 +96,7 @@ write_compiler_detection_header(
PREFIX MULTI
OUTPUT_FILES_VAR multi_files
OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/compiler_multi_files/compiler_support"
- COMPILERS GNU Clang AppleClang SunPro
+ COMPILERS GNU Clang AppleClang MSVC SunPro
VERSION 3.1
FEATURES
${cxx_known_features} ${c_known_features}
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=9ab6fd968501383f1ab3e54a28ab3c51b84b47ac
commit 9ab6fd968501383f1ab3e54a28ab3c51b84b47ac
Author: Robert Maynard <robert.maynard at kitware.com>
AuthorDate: Mon Jan 19 12:50:24 2015 -0500
Commit: Robert Maynard <robert.maynard at kitware.com>
CommitDate: Mon Jan 19 15:41:42 2015 -0500
Features: Exclude MSVC from Link Feature tests.
Compilers such as MSVC have no explicit flags to enable C++11/14/17 mode,
instead the compiler comes with a set list of supported features. This combined
with the fact that MSVC has no C++ ABI compatibility means that this test is
not needed for MSVC.
diff --git a/Tests/RunCMake/CompileFeatures/RunCMakeTest.cmake b/Tests/RunCMake/CompileFeatures/RunCMakeTest.cmake
index 1892a5c..f890f24 100644
--- a/Tests/RunCMake/CompileFeatures/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CompileFeatures/RunCMakeTest.cmake
@@ -27,8 +27,10 @@ if (NOT CXX_FEATURES)
run_cmake(NoSupportedCxxFeatures)
run_cmake(NoSupportedCxxFeaturesGenex)
else()
- run_cmake(LinkImplementationFeatureCycle)
- run_cmake(LinkImplementationFeatureCycleSolved)
+ if(NOT MSVC)
+ run_cmake(LinkImplementationFeatureCycle)
+ run_cmake(LinkImplementationFeatureCycleSolved)
+ endif()
if (";${CXX_FEATURES};" MATCHES ";cxx_final;")
set(RunCMake_TEST_OPTIONS "-DHAVE_FINAL=1")
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