Temporary header file '/tmp/7n0p3H6M4W/dump1.h' with the following content will be compiled to create GCC translation unit dump: // add defines #define __STDC_VERSION__ 201710L #define _GXX_NULLPTR_T #define CLUTTER_ENABLE_COMPOSITOR_API 1 #define _REGEX_NELTS(n) #define _Atomic #define PACKED #define getaddrinfo_a(a,b,c,d) // add includes #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitx5qt6dbusaddons_export.h" #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtcontrollerproxy.h" #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtdbustypes.h" #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtinputcontextproxy.h" #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtinputmethodproxy.h" #include "/usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtwatcher.h" #include "/usr/include/Fcitx5Qt6/fcitx5qt6dbusaddons_version.h" The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/7n0p3H6M4W/dump1.h" In file included from /tmp/7n0p3H6M4W/dump1.h:13: /usr/include/Fcitx5Qt6/Fcitx5Qt6DBusAddons/fcitxqtcontrollerproxy.h:14:10: fatal error: QtCore/QObject: No such file or directory 14 | #include | ^~~~~~~~~~~~~~~~ compilation terminated.