Temporary header file '/tmp/z0c6kLi9lV/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/adios.h"
  #include "/usr/include/adios_error.h"
  #include "/usr/include/adios_link.h"
  #include "/usr/include/adios_mpi.h"
  #include "/usr/include/adios_query.h"
  #include "/usr/include/adios_read.h"
  #include "/usr/include/adios_read_ext.h"
  #include "/usr/include/adios_read_v1.h"
  #include "/usr/include/adios_read_v1_defs.h"
  #include "/usr/include/adios_read_v2.h"
  #include "/usr/include/adios_read_v2_fwd.h"
  #include "/usr/include/adios_schema.h"
  #include "/usr/include/adios_selection.h"
  #include "/usr/include/adios_transform_methods.h"
  #include "/usr/include/adios_types.h"
  #include "/usr/include/adios_version.h"
  #include "/usr/include/adiost_callback_api.h"
  #include "/usr/include/mpidummy.h"

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/z0c6kLi9lV/dump1.h"

In file included from /usr/include/adios.h:14,
                 from /tmp/z0c6kLi9lV/dump1.h:12:
/usr/include/adios_mpi.h:16:13: fatal error: mpi.h: No such file or directory
   16 | #   include "mpi.h"
      |             ^~~~~~~
compilation terminated.