if (NOT LIBCXX_INSTALL_SUPPORT_HEADERS) set(LIBCXX_SUPPORT_HEADER_PATTERN PATTERN "support" EXCLUDE) endif() install(DIRECTORY . DESTINATION include/c++/v1 FILES_MATCHING PATTERN "*" PATTERN "CMakeLists.txt" EXCLUDE PATTERN ".svn" EXCLUDE ${LIBCXX_SUPPORT_HEADER_PATTERN} PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ )