1*387f9dfdSAndroid Build Coastguard Worker# only turn on static-libstdc++ if also linking statically against clang 2*387f9dfdSAndroid Build Coastguard Workerstring(REGEX MATCH ".*[.]a$" LIBCLANG_ISSTATIC "${libclangBasic}") 3*387f9dfdSAndroid Build Coastguard Worker# if gcc 4.9 or higher is used, static libstdc++ is a good option 4*387f9dfdSAndroid Build Coastguard Workerif (CMAKE_COMPILER_IS_GNUCC AND LIBCLANG_ISSTATIC AND (NOT ENABLE_LLVM_SHARED OR libclang-shared STREQUAL "libclang-shared-NOTFOUND")) 5*387f9dfdSAndroid Build Coastguard Worker execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION) 6*387f9dfdSAndroid Build Coastguard Worker if (GCC_VERSION VERSION_GREATER 4.9 OR GCC_VERSION VERSION_EQUAL 4.9) 7*387f9dfdSAndroid Build Coastguard Worker execute_process(COMMAND ${CMAKE_C_COMPILER} -print-libgcc-file-name OUTPUT_VARIABLE GCC_LIB) 8*387f9dfdSAndroid Build Coastguard Worker get_filename_component(GCC_DIR "${GCC_LIB}" DIRECTORY) 9*387f9dfdSAndroid Build Coastguard Worker find_library(GCC_LIBSTDCPP libstdc++.a PATHS "${GCC_DIR}" NO_DEFAULT_PATH) 10*387f9dfdSAndroid Build Coastguard Worker if (GCC_LIBSTDCPP) 11*387f9dfdSAndroid Build Coastguard Worker message(STATUS "Using static-libstdc++") 12*387f9dfdSAndroid Build Coastguard Worker set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static-libstdc++") 13*387f9dfdSAndroid Build Coastguard Worker endif() 14*387f9dfdSAndroid Build Coastguard Worker endif() 15*387f9dfdSAndroid Build Coastguard Workerendif() 16