Use SETTINGS to set compiler.libcxx

This commit is contained in:
Sebastian Messmer 2020-06-30 20:18:50 -07:00
parent 3b0d46e01e
commit f8c0bb8b97

View File

@ -6,20 +6,12 @@ macro(setup_conan)
CONANFILE conanfile.py
BUILD missing)
else()
# We're using set(_GLIBCXX_USE_CXX11_ABI 1), because conan_cmake_run looks at that variable
# to set conan to libstdc++11 instead of libstdc++. This would also work by passing in
# a "SETTINGS compiler.libcxx=libstdc++11" to conan_cmake_run, but for some reason the logs
# then show that conan ran with both "-s compiler.libcxx=libstdc++ -s compiler.libcxx=libstdc++11"
# which seems wrong. Using the set() approach instead, that command line only has the correct
# "-s compiler.libcxx=libstdc++11".
# See https://github.com/conan-io/cmake-conan/issues/255
# We're using set() instead of add_definitions() because of https://github.com/conan-io/cmake-conan/issues/256
set(_GLIBCXX_USE_CXX11_ABI 1)
conan_cmake_run(
CONANFILE conanfile.py
# We'd like to use "BUILD missing" but that doesn't work because conan sometimes seems to download prebuilt packages with compiler.libcxx=libstdc++ even though we specify compiler.libcxx=libstdc++11.
# see https://github.com/cryfs/cryfs/issues/336 and https://github.com/conan-io/conan/issues/7264
BUILD all)
BUILD all
SETTINGS compiler.libcxx=libstdc++11)
endif()
conan_basic_setup(TARGETS SKIP_STD)