Temporary header file '/tmp/v97_w0OKqs/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/ags/libags-gui.h"
  #include "/usr/include/ags/widget/ags_cartesian.h"
  #include "/usr/include/ags/widget/ags_dial.h"
  #include "/usr/include/ags/widget/ags_expander.h"
  #include "/usr/include/ags/widget/ags_expander_set.h"
  #include "/usr/include/ags/widget/ags_indicator.h"
  #include "/usr/include/ags/widget/ags_led.h"
  #include "/usr/include/ags/widget/ags_led_array.h"
  #include "/usr/include/ags/widget/ags_level.h"
  #include "/usr/include/ags/widget/ags_level_box.h"
  #include "/usr/include/ags/widget/ags_notebook.h"
  #include "/usr/include/ags/widget/ags_piano.h"
  #include "/usr/include/ags/widget/ags_piano_keys.h"
  #include "/usr/include/ags/widget/ags_ruler.h"
  #include "/usr/include/ags/widget/ags_scale.h"
  #include "/usr/include/ags/widget/ags_scale_box.h"
  #include "/usr/include/ags/widget/ags_scrolled_level_box.h"
  #include "/usr/include/ags/widget/ags_scrolled_piano.h"
  #include "/usr/include/ags/widget/ags_scrolled_scale_box.h"
  #include "/usr/include/ags/widget/ags_widget_marshal.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/v97_w0OKqs/dump1.h"

In file included from /usr/include/ags/libags-gui.h:23,
                 from /tmp/v97_w0OKqs/dump1.h:12:
/usr/include/ags/widget/ags_cartesian.h:23:10: fatal error: glib.h: No such file or directory
   23 | #include <glib.h>
      |          ^~~~~~~~
compilation terminated.