Temporary header file '/tmp/cz3T1Ywcvn/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/netgen/mydefs.hpp"
  #include "/usr/include/netgen/nginterface.h"
  #include "/usr/include/netgen/nginterface_v2.hpp"
  #include "/usr/include/netgen/nglib.h"
  #include "/usr/include/netgen/soldata.hpp"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/cz3T1Ywcvn/dump1.h"

In file included from /tmp/cz3T1Ywcvn/dump1.h:13:
/usr/include/netgen/nginterface.h:14:10: fatal error: ../core/ngcore.hpp: No such file or directory
   14 | #include "../core/ngcore.hpp"
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.