Temporary header file '/tmp/8QE8rlpMfz/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) 
typedef float _Float32;
typedef long double _Float64;
typedef double _Float32x;

  // add includes
  #include "/usr/include/tcl8.6/tk-private/compat/stdlib.h"
  #include "/usr/include/tcl8.6/tk-private/compat/unistd.h"
  #include "/usr/include/tcl8.6/tk-private/unix/tkUnixDefault.h"
  #include "/usr/include/tcl8.6/tk-private/unix/tkUnixInt.h"
  #include "/usr/include/tcl8.6/tk-private/unix/tkUnixPort.h"
  #include "/usr/include/tcl8.6/tk-private/unix/tkUuid.h"
  #include "/usr/include/tcl8.6/tk.h"
  #include "/usr/include/tcl8.6/tkDecls.h"
  #include "/usr/include/tcl8.6/tkPlatDecls.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -U__cplusplus -D_Bool="bool" -fpreprocessed -x c++ -fpermissive -w "/tmp/8QE8rlpMfz/dump1.i"  -I/usr/include/tcl8.6 -I/usr/include/tcl8.6/tk-private/unix -I/usr/include/tcl8.6/tk-private/generic

