Temporary header file '/tmp/8SBTQ2tZPK/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/pgpool2/libpcp_ext.h"
  #include "/usr/include/pgpool2/pcp.h"
  #include "/usr/include/pgpool2/pool_process_reporting.h"
  #include "/usr/include/pgpool2/pool_type.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/8SBTQ2tZPK/dump1.h"

In file included from /usr/include/pgpool2/pcp.h:27,
                 from /tmp/8SBTQ2tZPK/dump1.h:13:
/usr/include/pgpool2/pool_type.h:29:10: fatal error: config.h: No such file or directory
   29 | #include "config.h"
      |          ^~~~~~~~~~
compilation terminated.