Temporary header file '/tmp/CWgsoH2WFJ/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/unity/Exception.h"
  #include "/usr/include/unity/SymbolExport.h"
  #include "/usr/include/unity/UnityExceptions.h"
  #include "/usr/include/unity/api/Version.h"
  #include "/usr/include/unity/shell/application/ApplicationInfoInterface.h"
  #include "/usr/include/unity/shell/application/ApplicationManagerInterface.h"
  #include "/usr/include/unity/shell/application/Mir.h"
  #include "/usr/include/unity/shell/application/MirMousePointerInterface.h"
  #include "/usr/include/unity/shell/application/MirPlatformCursor.h"
  #include "/usr/include/unity/shell/application/MirSurfaceInterface.h"
  #include "/usr/include/unity/shell/application/MirSurfaceItemInterface.h"
  #include "/usr/include/unity/shell/application/MirSurfaceListInterface.h"
  #include "/usr/include/unity/shell/application/SurfaceManagerInterface.h"
  #include "/usr/include/unity/shell/launcher/AppDrawerModelInterface.h"
  #include "/usr/include/unity/shell/launcher/LauncherItemInterface.h"
  #include "/usr/include/unity/shell/launcher/LauncherModelInterface.h"
  #include "/usr/include/unity/shell/launcher/QuickListModelInterface.h"
  #include "/usr/include/unity/shell/notifications/Enums.h"
  #include "/usr/include/unity/shell/notifications/ModelInterface.h"
  #include "/usr/include/unity/shell/notifications/NotificationInterface.h"
  #include "/usr/include/unity/shell/notifications/SourceInterface.h"
  #include "/usr/include/unity/shell/scopes/CategoriesInterface.h"
  #include "/usr/include/unity/shell/scopes/ExpandableFilterWidgetInterface.h"
  #include "/usr/include/unity/shell/scopes/FilterBaseInterface.h"
  #include "/usr/include/unity/shell/scopes/FiltersInterface.h"
  #include "/usr/include/unity/shell/scopes/NavigationInterface.h"
  #include "/usr/include/unity/shell/scopes/OptionSelectorFilterInterface.h"
  #include "/usr/include/unity/shell/scopes/OptionSelectorOptionsInterface.h"
  #include "/usr/include/unity/shell/scopes/PreviewModelInterface.h"
  #include "/usr/include/unity/shell/scopes/PreviewWidgetModelInterface.h"
  #include "/usr/include/unity/shell/scopes/RangeInputFilterInterface.h"
  #include "/usr/include/unity/shell/scopes/ResultsModelInterface.h"
  #include "/usr/include/unity/shell/scopes/ScopeInterface.h"
  #include "/usr/include/unity/shell/scopes/ScopesInterface.h"
  #include "/usr/include/unity/shell/scopes/SettingsModelInterface.h"
  #include "/usr/include/unity/shell/scopes/ValueSliderFilterInterface.h"
  #include "/usr/include/unity/shell/scopes/ValueSliderValuesInterface.h"
  #include "/usr/include/unity/util/Daemon.h"
  #include "/usr/include/unity/util/DefinesPtrs.h"
  #include "/usr/include/unity/util/FileIO.h"
  #include "/usr/include/unity/util/GObjectMemory.h"
  #include "/usr/include/unity/util/GioMemory.h"
  #include "/usr/include/unity/util/GlibMemory.h"
  #include "/usr/include/unity/util/IniParser.h"
  #include "/usr/include/unity/util/NonCopyable.h"
  #include "/usr/include/unity/util/ResourcePtr.h"
  #include "/usr/include/unity/util/SnapPath.h"

  // add namespaces
  namespace unity{typedef int tmp_add_type_1;}
  unity::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace unity{namespace api{typedef int tmp_add_type_2;}}
  unity::api::tmp_add_type_2 tmp_add_func_2(){return 0;};

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/CWgsoH2WFJ/dump1.h"

In file included from /tmp/CWgsoH2WFJ/dump1.h:16:
/usr/include/unity/shell/application/ApplicationInfoInterface.h:22:10: fatal error: QtCore/QObject: No such file or directory
   22 | #include <QtCore/QObject>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.