| if (CMAKE_VERSION VERSION_LESS 3.26) |
| message(WARNING "The libc++ modules won't be available because the CMake version is too old. Update to CMake 3.26 or later.") |
| return() |
| endif() |
| |
| # The headers of Table 24: C++ library headers [tab:headers.cpp] |
| # and the headers of Table 25: C++ headers for C library facilities [tab:headers.cpp.c] |
| set(LIBCXX_MODULE_STD_SOURCES |
| std/algorithm.inc |
| std/any.inc |
| std/array.inc |
| std/atomic.inc |
| std/barrier.inc |
| std/bit.inc |
| std/bitset.inc |
| std/cassert.inc |
| std/cctype.inc |
| std/cerrno.inc |
| std/cfenv.inc |
| std/cfloat.inc |
| std/charconv.inc |
| std/chrono.inc |
| std/cinttypes.inc |
| std/climits.inc |
| std/clocale.inc |
| std/cmath.inc |
| std/codecvt.inc |
| std/compare.inc |
| std/complex.inc |
| std/concepts.inc |
| std/condition_variable.inc |
| std/coroutine.inc |
| std/csetjmp.inc |
| std/csignal.inc |
| std/cstdarg.inc |
| std/cstddef.inc |
| std/cstdint.inc |
| std/cstdio.inc |
| std/cstdlib.inc |
| std/cstring.inc |
| std/ctime.inc |
| std/cuchar.inc |
| std/cwchar.inc |
| std/cwctype.inc |
| std/deque.inc |
| std/exception.inc |
| std/execution.inc |
| std/expected.inc |
| std/filesystem.inc |
| std/flat_map.inc |
| std/flat_set.inc |
| std/format.inc |
| std/forward_list.inc |
| std/fstream.inc |
| std/functional.inc |
| std/future.inc |
| std/generator.inc |
| std/hazard_pointer.inc |
| std/initializer_list.inc |
| std/iomanip.inc |
| std/ios.inc |
| std/iosfwd.inc |
| std/iostream.inc |
| std/istream.inc |
| std/iterator.inc |
| std/latch.inc |
| std/limits.inc |
| std/list.inc |
| std/locale.inc |
| std/map.inc |
| std/mdspan.inc |
| std/memory.inc |
| std/memory_resource.inc |
| std/mutex.inc |
| std/new.inc |
| std/numbers.inc |
| std/numeric.inc |
| std/optional.inc |
| std/ostream.inc |
| std/print.inc |
| std/queue.inc |
| std/random.inc |
| std/ranges.inc |
| std/ratio.inc |
| std/rcu.inc |
| std/regex.inc |
| std/scoped_allocator.inc |
| std/semaphore.inc |
| std/set.inc |
| std/shared_mutex.inc |
| std/source_location.inc |
| std/span.inc |
| std/spanstream.inc |
| std/sstream.inc |
| std/stack.inc |
| std/stacktrace.inc |
| std/stdexcept.inc |
| std/stdfloat.inc |
| std/stop_token.inc |
| std/streambuf.inc |
| std/string.inc |
| std/string_view.inc |
| std/strstream.inc |
| std/syncstream.inc |
| std/system_error.inc |
| std/text_encoding.inc |
| std/thread.inc |
| std/tuple.inc |
| std/type_traits.inc |
| std/typeindex.inc |
| std/typeinfo.inc |
| std/unordered_map.inc |
| std/unordered_set.inc |
| std/utility.inc |
| std/valarray.inc |
| std/variant.inc |
| std/vector.inc |
| std/version.inc |
| ) |
| |
| # TODO MODULES the CMakeLists.txt in the install directory is only temporary |
| # When that is removed the configured file can use the substitution |
| # LIBCXX_GENERATED_INCLUDE_TARGET_DIR avoiding this set. |
| # Also clean up the parts needed to generate the install version. |
| # - LIBCXX_GENERATED_INCLUDE_DIR contains the libc++ headers |
| # - LIBCXX_GENERATED_INCLUDE_TARGET_DIR contains the libc++ site config |
| if ("${LIBCXX_GENERATED_INCLUDE_DIR}" STREQUAL "${LIBCXX_GENERATED_INCLUDE_TARGET_DIR}") |
| # This typically happens when the target is not installed. |
| set(LIBCXX_CONFIGURED_INCLUDE_DIRS "${LIBCXX_GENERATED_INCLUDE_DIR}") |
| else() |
| # It's important that the arch directory be included first so that its header files |
| # which interpose on the default include dir be included instead of the default ones. |
| set(LIBCXX_CONFIGURED_INCLUDE_DIRS |
| "${LIBCXX_GENERATED_INCLUDE_TARGET_DIR};${LIBCXX_GENERATED_INCLUDE_DIR}" |
| ) |
| endif() |
| configure_file( |
| "CMakeLists.txt.in" |
| "${LIBCXX_GENERATED_MODULE_DIR}/CMakeLists.txt" |
| @ONLY |
| ) |
| |
| set(LIBCXX_MODULE_STD_INCLUDE_SOURCES) |
| foreach(file ${LIBCXX_MODULE_STD_SOURCES}) |
| set( |
| LIBCXX_MODULE_STD_INCLUDE_SOURCES |
| "${LIBCXX_MODULE_STD_INCLUDE_SOURCES}#include \"${file}\"\n" |
| ) |
| endforeach() |
| |
| configure_file( |
| "std.cppm.in" |
| "${LIBCXX_GENERATED_MODULE_DIR}/std.cppm" |
| @ONLY |
| ) |
| |
| set(_all_modules) |
| list(APPEND _all_modules "${LIBCXX_GENERATED_MODULE_DIR}/CMakeLists.txt") |
| list(APPEND _all_modules "${LIBCXX_GENERATED_MODULE_DIR}/std.cppm") |
| foreach(file ${LIBCXX_MODULE_STD_SOURCES}) |
| set(src "${CMAKE_CURRENT_SOURCE_DIR}/${file}") |
| set(dst "${LIBCXX_GENERATED_MODULE_DIR}/${file}") |
| add_custom_command(OUTPUT ${dst} |
| DEPENDS ${src} |
| COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst} |
| COMMENT "Copying CXX module ${file}") |
| list(APPEND _all_modules "${dst}") |
| endforeach() |
| |
| add_custom_target(generate-cxx-modules |
| ALL DEPENDS |
| ${_all_modules} |
| ) |
