https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116807
--- Comment #5 from wxy_it at 163 dot com --- (In reply to wxy_it from comment #4) > I obtained the following GCC command from the files generated by CMake. This > command can also reproduce the bug. > g++ -std=c++20 -fmodules-ts -MD -fdeps-format=p1689r5 -xc++ -c b.ixx > g++ -std=c++20 -fmodules-ts -MD -fdeps-format=p1689r5 -xc++ -c a.ixx > g++ -std=c++20 -fmodules-ts -MD -fdeps-format=p1689r5 -c b.cpp > g++ -std=c++20 -fmodules-ts -MD -fdeps-format=p1689r5 -c a.cpp mistake
