Temporary header file '/tmp/GbZvKESMSi/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/arm-linux-gnueabihf/s6/accessrules.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/auto.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/compat.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/config.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/fdholder.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/ftrigr.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/ftrigw.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/lock.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/s6.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/servicedir.h"
  #include "/usr/include/arm-linux-gnueabihf/s6/supervise.h"

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

In file included from /tmp/GbZvKESMSi/dump1.h:12:
/usr/include/arm-linux-gnueabihf/s6/accessrules.h:7:10: fatal error: skalibs/cdb.h: No such file or directory
    7 | #include <skalibs/cdb.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.