Temporary header file '/tmp/myyfHjsOri/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/indicator-transfer/transfer/model.h"
  #include "/usr/include/indicator-transfer/transfer/source.h"
  #include "/usr/include/indicator-transfer/transfer/transfer.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/myyfHjsOri/dump1.h"  -I/usr/include/indicator-transfer

In file included from /usr/include/indicator-transfer/transfer/model.h:23,
                 from /tmp/myyfHjsOri/dump1.h:12:
/usr/include/indicator-transfer/transfer/transfer.h:23:10: fatal error: core/property.h: No such file or directory
   23 | #include <core/property.h> // parent class
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.