cmake: use C++14 when available

Libtorrent does the same and we have to follow since
its ABI depends on the C++ standard version.

Partially closes #9485.
This commit is contained in:
Eugene Shalygin 2018-09-16 18:29:15 +02:00
parent 487ea36782
commit 141af072b9

View file

@ -1,5 +1,13 @@
set(CMAKE_CXX_STANDARD_REQUIRED True)
set(CMAKE_CXX_STANDARD "11")
# If C++14 is available, use it as libtorent ABI depends on 11/14 version
if (cxx_std_14 IN_LIST CMAKE_CXX_COMPILE_FEATURES)
message(STATUS "Building in C++14 mode")
set(CMAKE_CXX_STANDARD "14")
else()
message(STATUS "Building in C++11 mode")
set(CMAKE_CXX_STANDARD "11")
endif()
include(MacroQbtCompilerSettings)
qbt_set_compiler_options()