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Features: Record C++11 dialect switch only for GNU 4.7 and later. 

Previous versions of GNU are not currently supported by this
CMake feature.
This commit is contained in:
Stephen Kelly 2014-11-19 09:37:21 +01:00
parent 598a316154
commit c03c184be0
1 changed files with 3 additions and 4 deletions
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7
Modules/Compiler/GNU-CXX.cmake
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@ -11,7 +11,8 @@ else()
endif() endif()
endif() endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.3) if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
# Supported since 4.3
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98") set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98") set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
endif() endif()
@ -19,9 +20,7 @@ endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7) if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11") set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11") set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.3) # 4.3 supports 0x variants
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
endif() endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8) if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)