Temporary header file '/tmp/M8tFnHFg7a/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _FILE_OFFSET_BITS 64
#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/stdint.h"
  #include "/usr/include/tweeny/dispatcher.h"
  #include "/usr/include/tweeny/easing.h"
  #include "/usr/include/tweeny/easingresolve.h"
  #include "/usr/include/tweeny/int2type.h"
  #include "/usr/include/tweeny/tween.h"
  #include "/usr/include/tweeny/tweenpoint.h"
  #include "/usr/include/tweeny/tweentraits.h"
  #include "/usr/include/tweeny/tweeny.h"

  // add namespaces
  namespace tweeny{typedef int tmp_add_type_1;}
  tweeny::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace tweeny{namespace detail{typedef int tmp_add_type_2;}}
  tweeny::detail::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/M8tFnHFg7a/dump1.h"