diff options
| -rw-r--r-- | Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst | 5 | ||||
| -rw-r--r-- | Modules/Compiler/GNU-CXX-FeatureTests.cmake | 2 | ||||
| -rw-r--r-- | Source/cmMakefile.cxx | 1 | ||||
| -rw-r--r-- | Tests/CompileFeatures/cxx_extern_templates.cpp | 12 |
4 files changed, 20 insertions, 0 deletions
diff --git a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst index 0a2f23c..6c4bc15 100644 --- a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst +++ b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst @@ -52,6 +52,11 @@ The features known to this version of CMake are: .. _N2437: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf +``cxx_extern_templates`` + Extern templates, as defined in N1987_. + + .. _N1987: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm + ``cxx_final`` Override control ``final`` keyword, as defined in N2928_. diff --git a/Modules/Compiler/GNU-CXX-FeatureTests.cmake b/Modules/Compiler/GNU-CXX-FeatureTests.cmake index bd3e96e..ee7f2e4 100644 --- a/Modules/Compiler/GNU-CXX-FeatureTests.cmake +++ b/Modules/Compiler/GNU-CXX-FeatureTests.cmake @@ -53,4 +53,6 @@ set(GNU43_CXX11 "${_oldestSupported} && __cplusplus >= 201103L") set(_cmake_feature_test_cxx_decltype "${GNU43_CXX11}") set(_cmake_feature_test_cxx_rvalue_references "${GNU43_CXX11}") set(_cmake_feature_test_cxx_static_assert "${GNU43_CXX11}") +# TODO: Should be supported since GNU 3.4? +set(_cmake_feature_test_cxx_extern_templates "${_oldestSupported} && __cplusplus >= 201103L") set(_oldestSupported) diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx index aa9b7c7..1803afe 100644 --- a/Source/cmMakefile.cxx +++ b/Source/cmMakefile.cxx @@ -50,6 +50,7 @@ F(cxx_delegating_constructors) \ F(cxx_deleted_functions) \ F(cxx_explicit_conversions) \ + F(cxx_extern_templates) \ F(cxx_final) \ F(cxx_inheriting_constructors) \ F(cxx_lambdas) \ diff --git a/Tests/CompileFeatures/cxx_extern_templates.cpp b/Tests/CompileFeatures/cxx_extern_templates.cpp new file mode 100644 index 0000000..9fa4aa4 --- /dev/null +++ b/Tests/CompileFeatures/cxx_extern_templates.cpp @@ -0,0 +1,12 @@ + +template<typename T> +void someFunc() +{ +} + +extern template void someFunc<int>(); + +void otherFunc() +{ + someFunc<int>(); +} |