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Features: Enable writing of MSVC compiler feature header.

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Notes:
VS2015 and above are the only MSVC versions to support cxx_final, so remove
usages from the tests, and instead only test for cxx_override.

VS2012 and above to conform to cxx_decltype_incomplete_return_types
proposal, but without support for auto return types the dcl.type.simple
example in the proposal doesn't compile.

VS2013 and above to conform to the updated cxx_contextual_conversions proposal,
but VS2010 and above pass the test.

Compilers such as MSVC have no explicit flags to enable C++11 mode,
it just is always on. So only run the link tests with compilers that require
a flag to specify the language version.
This commit is contained in:
Robert Maynard
2015-01-06 13:19:44 -05:00
committed by Brad King
parent 64c30bdc48
commit f73718c9b8
5 changed files with 48 additions and 7 deletions
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Tests/Module/WriteCompilerDetectionHeader/CMakeLists.txt
+14 -2
View File
@@ -11,7 +11,7 @@ get_property(c_known_features GLOBAL PROPERTY CMAKE_C_KNOWN_FEATURES)
write_compiler_detection_header(
FILE "${CMAKE_CURRENT_BINARY_DIR}/test_compiler_detection.h"
PREFIX TEST
COMPILERS GNU Clang AppleClang
COMPILERS GNU Clang AppleClang MSVC
VERSION 3.1
PROLOG "// something"
EPILOG "// more"
@@ -64,6 +64,18 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"
list(APPEND false_defs EXPECTED_COMPILER_CXX_VARIADIC_TEMPLATES)
endif()
# for msvc the compiler version determines which c++11 features are available.
# Both variadic templates and delegating constructors support exist in
# all versions that we write compile headers for.
if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" AND
";${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")
@@ -81,7 +93,7 @@ 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
COMPILERS GNU Clang AppleClang MSVC
VERSION 3.1
FEATURES
${cxx_known_features} ${c_known_features}