Temporary header file '/tmp/JoUsO0PTj_/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/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/glib-enum-types.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rb-gobject-introspection.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rb-pango-conversions.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rb-pango.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgcompat.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgdk.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgdkconversions.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbglib.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbglib2conversions.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbglibdeprecated.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgobject.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgtk.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgtkconversions.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgtkmacros.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgutil.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgutil_list.h"
  #include "/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/rbgutildeprecated.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/JoUsO0PTj_/dump1.h"  -I/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0 -I/usr/include/ruby-3.1.0 -I/usr/include/arm-linux-gnueabihf/ruby-3.1.0

In file included from /tmp/JoUsO0PTj_/dump1.h:12:
/usr/lib/arm-linux-gnueabihf/ruby/vendor_ruby/3.1.0/glib-enum-types.h:7:10: fatal error: glib-object.h: No such file or directory
    7 | #include <glib-object.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.