Temporary header file '/tmp/33Ia_KVC0P/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
#ifdef __cplusplus
// C17 compat layer
#define _Alignof(type) alignof(type)
#endif
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/libqxp-0.0/libqxp/QXPDocument.h"
  #include "/usr/include/libqxp-0.0/libqxp/QXPPathResolver.h"
  #include "/usr/include/libqxp-0.0/libqxp/libqxp.h"
  #include "/usr/include/libqxp-0.0/libqxp/libqxp_api.h"

  // add namespaces
  namespace libqxp{typedef int tmp_add_type_1;}
  libqxp::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace librevenge{typedef int tmp_add_type_2;}
  librevenge::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/33Ia_KVC0P/dump1.h"  -I/usr/include/librevenge-0.0