Temporary header file '/tmp/O3qcqJMIJW/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/share/cargo/registry/gtk4-sys-0.3.1/tests/manual.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/O3qcqJMIJW/dump1.h"  -I/usr/include/pango-1.0 -I/usr/include/harfbuzz -I/usr/include/gtk-4.0 -I/usr/include/graphene-1.0 -I/usr/include/glib-2.0 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/cairo -I/lib/arm-linux-gnueabihf/graphene-1.0/include -I/lib/arm-linux-gnueabihf/glib-2.0/include

In file included from /tmp/O3qcqJMIJW/dump1.h:12:
/usr/share/cargo/registry/gtk4-sys-0.3.1/tests/manual.h:3:10: fatal error: gtk/gtk-a11y.h: No such file or directory
    3 | #include <gtk/gtk-a11y.h>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.