Temporary header file '/tmp/pIFJR2v8Nm/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _TIME_BITS 64
#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) 
typedef float _Float32;
typedef long double _Float64;
typedef double _Float32x;

  // add includes
  #include "/usr/include/allegro/base.h"
  #include "/usr/include/allegro/color.h"
  #include "/usr/include/allegro/compiled.h"
  #include "/usr/include/allegro/config.h"
  #include "/usr/include/allegro/datafile.h"
  #include "/usr/include/allegro/debug.h"
  #include "/usr/include/allegro/digi.h"
  #include "/usr/include/allegro/draw.h"
  #include "/usr/include/allegro/file.h"
  #include "/usr/include/allegro/fix.h"
  #include "/usr/include/allegro/fixed.h"
  #include "/usr/include/allegro/fli.h"
  #include "/usr/include/allegro/fmaths.h"
  #include "/usr/include/allegro/font.h"
  #include "/usr/include/allegro/gfx.h"
  #include "/usr/include/allegro/graphics.h"
  #include "/usr/include/allegro/gui.h"
  #include "/usr/include/allegro/internal/alconfig.h"
  #include "/usr/include/allegro/joystick.h"
  #include "/usr/include/allegro/keyboard.h"
  #include "/usr/include/allegro/lzss.h"
  #include "/usr/include/allegro/matrix.h"
  #include "/usr/include/allegro/midi.h"
  #include "/usr/include/allegro/mouse.h"
  #include "/usr/include/allegro/palette.h"
  #include "/usr/include/allegro/platform/aintlnx.h"
  #include "/usr/include/allegro/platform/aintosx.h"
  #include "/usr/include/allegro/platform/aintpsp.h"
  #include "/usr/include/allegro/platform/aintunix.h"
  #include "/usr/include/allegro/platform/astdint.h"
  #include "/usr/include/allegro/platform/macdef.h"
  #include "/usr/include/allegro/quat.h"
  #include "/usr/include/allegro/rle.h"
  #include "/usr/include/allegro/sound.h"
  #include "/usr/include/allegro/stream.h"
  #include "/usr/include/allegro/system.h"
  #include "/usr/include/allegro/text.h"
  #include "/usr/include/allegro/timer.h"
  #include "/usr/include/allegro/unicode.h"
  #include "/usr/include/allegro.h"
  #include "/usr/include/xalleg.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -U__cplusplus -D_Bool="bool" -fpreprocessed -x c++ -fpermissive -w "/tmp/pIFJR2v8Nm/dump1.i"