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cmake/find/cxx.cmake

36lines · modecode

6 years ago

1	`if (COMPILER_CLANG)`
2	`option (USE_LIBCXX "Use libc++ and libc++abi instead of libstdc++" ON)`
3	`option (USE_INTERNAL_LIBCXX_LIBRARY "Set to FALSE to use system libcxx and libcxxabi libraries instead of bundled" ${NOT_UNBUNDLED})`
4	`endif()`
5
6	`if (USE_LIBCXX)`
7	`set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_LIBCPP_DEBUG=0") # More checks in debug build.`
8
9	`if (NOT USE_INTERNAL_LIBCXX_LIBRARY)`
10	`find_library (LIBCXX_LIBRARY c++)`
11	`find_library (LIBCXXFS_LIBRARY c++fs)`
12	`find_library (LIBCXXABI_LIBRARY c++abi)`
13
14	`set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")`
15
16	`target_link_libraries(global-libs INTERFACE ${EXCEPTION_HANDLING_LIBRARY})`
17	`else ()`
18	`set (LIBCXX_LIBRARY cxx)`
19	`set (LIBCXXABI_LIBRARY cxxabi)`
20	`add_subdirectory(contrib/libcxxabi-cmake)`
21	`add_subdirectory(contrib/libcxx-cmake)`
22
23	`# Exception handling library is embedded into libcxxabi.`
24	`endif ()`
25
26	`target_link_libraries(global-libs INTERFACE ${LIBCXX_LIBRARY} ${LIBCXXABI_LIBRARY} ${LIBCXXFS_LIBRARY})`
27
28	`set (HAVE_LIBCXX 1)`
29
30	`message (STATUS "Using libcxx: ${LIBCXX_LIBRARY}")`
31	`message (STATUS "Using libcxxfs: ${LIBCXXFS_LIBRARY}")`
32	`message (STATUS "Using libcxxabi: ${LIBCXXABI_LIBRARY}")`
33	`else ()`
34	`target_link_libraries(global-libs INTERFACE -l:libstdc++.a -l:libstdc++fs.a) # Always link these libraries as static`
35	`target_link_libraries(global-libs INTERFACE ${EXCEPTION_HANDLING_LIBRARY})`
36	`endif ()`