Temporary header file '/tmp/Xj5BzvSxNm/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/drumstick/alsaclient.h"
  #include "/usr/include/drumstick/alsaevent.h"
  #include "/usr/include/drumstick/alsaport.h"
  #include "/usr/include/drumstick/alsaqueue.h"
  #include "/usr/include/drumstick/alsatimer.h"
  #include "/usr/include/drumstick/backendmanager.h"
  #include "/usr/include/drumstick/configurationdialogs.h"
  #include "/usr/include/drumstick/macros.h"
  #include "/usr/include/drumstick/pianokeybd.h"
  #include "/usr/include/drumstick/pianopalette.h"
  #include "/usr/include/drumstick/playthread.h"
  #include "/usr/include/drumstick/qsmf.h"
  #include "/usr/include/drumstick/qwrk.h"
  #include "/usr/include/drumstick/rmid.h"
  #include "/usr/include/drumstick/rtmidiinput.h"
  #include "/usr/include/drumstick/rtmidioutput.h"
  #include "/usr/include/drumstick/sequencererror.h"
  #include "/usr/include/drumstick/settingsfactory.h"
  #include "/usr/include/drumstick/subscription.h"
  #include "/usr/include/drumstick.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/Xj5BzvSxNm/dump1.h"

In file included from /tmp/Xj5BzvSxNm/dump1.h:12:
/usr/include/drumstick/alsaclient.h:22:10: fatal error: QObject: No such file or directory
   22 | #include <QObject>
      |          ^~~~~~~~~
compilation terminated.