Temporary header file '/tmp/E1tWqbz9XG/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/svxlink/AsyncCppApplication.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/E1tWqbz9XG/dump1.h"

In file included from /tmp/E1tWqbz9XG/dump1.h:12:
/usr/include/svxlink/AsyncCppApplication.h:45:10: fatal error: sigc++/sigc++.h: No such file or directory
   45 | #include <sigc++/sigc++.h>
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.

