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Allow the user to set the C++ standard to use

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This is useful to test the library at different standard levels. Currently
doesn't search for C++14 in 'auto' mode. Can enable in the future
This commit is contained in:
Matt Clarkson 2015-04-30 14:40:37 +01:00
parent 8b5016034f
commit 3314aa43c2
1 changed files with 6 additions and 8 deletions
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14
CMakeLists.txt
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@ -18,18 +18,16 @@ message("-- Version: ${VERSION}")
set(GENERIC_LIB_VERSION ${VERSION})
string(SUBSTRING ${VERSION} 0 1 GENERIC_LIB_SOVERSION)
# Try and enable C++11. Don't use C++14 because it doesn't work in some
# configurations.
# Import our CMake modules
include(CheckCXXCompilerFlag)
include(AddCXXCompilerFlag)
include(CXXFeatureCheck)
check_cxx_compiler_flag(-std=c++11 HAVE_FLAG_CXX_11)
check_cxx_compiler_flag(-std=c++0x HAVE_FLAG_CXX_0X)
if (HAVE_FLAG_CXX_11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
elseif (HAVE_FLAG_CXX_0X)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
# Try and enable C++11. Don't use C++14 because it doesn't work in some
# configurations.
add_cxx_compiler_flag(-std=c++11)
if (NOT HAVE_CXX_FLAG_STD_CXX11)
add_cxx_compiler_flag(-std=c++0x)
endif()
# Turn compiler warnings up to 11