Temporary header file '/tmp/v9LlgiNeUE/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/clipper/ccp4/ccp4_map_io.h"
  #include "/usr/include/clipper/ccp4/ccp4_mtz_io.h"
  #include "/usr/include/clipper/ccp4/ccp4_mtz_types.h"
  #include "/usr/include/clipper/ccp4/ccp4_utils.h"
  #include "/usr/include/clipper/cif/cif_data_io.h"
  #include "/usr/include/clipper/clipper-ccp4.h"
  #include "/usr/include/clipper/clipper-cctbx.h"
  #include "/usr/include/clipper/clipper-cif.h"
  #include "/usr/include/clipper/clipper-cns.h"
  #include "/usr/include/clipper/clipper-contrib.h"
  #include "/usr/include/clipper/clipper-minimol.h"
  #include "/usr/include/clipper/clipper-mmdb.h"
  #include "/usr/include/clipper/clipper-phs.h"
  #include "/usr/include/clipper/clipper.h"
  #include "/usr/include/clipper/cns/cns_hkl_io.h"
  #include "/usr/include/clipper/cns/cns_map_io.h"
  #include "/usr/include/clipper/contrib/convolution_search.h"
  #include "/usr/include/clipper/contrib/edcalc.h"
  #include "/usr/include/clipper/contrib/fffear.h"
  #include "/usr/include/clipper/contrib/function_object_bases.h"
  #include "/usr/include/clipper/contrib/mapfilter.h"
  #include "/usr/include/clipper/contrib/originmatch.h"
  #include "/usr/include/clipper/contrib/sfcalc.h"
  #include "/usr/include/clipper/contrib/sfcalc_obs.h"
  #include "/usr/include/clipper/contrib/sfscale.h"
  #include "/usr/include/clipper/contrib/sfweight.h"
  #include "/usr/include/clipper/contrib/skeleton.h"
  #include "/usr/include/clipper/contrib/test_contrib.h"
  #include "/usr/include/clipper/core/atomsf.h"
  #include "/usr/include/clipper/core/cell.h"
  #include "/usr/include/clipper/core/clipper_instance.h"
  #include "/usr/include/clipper/core/clipper_memory.h"
  #include "/usr/include/clipper/core/clipper_message.h"
  #include "/usr/include/clipper/core/clipper_precision.h"
  #include "/usr/include/clipper/core/clipper_stats.h"
  #include "/usr/include/clipper/core/clipper_sysdep.h"
  #include "/usr/include/clipper/core/clipper_test.h"
  #include "/usr/include/clipper/core/clipper_thread.h"
  #include "/usr/include/clipper/core/clipper_types.h"
  #include "/usr/include/clipper/core/clipper_util.h"
  #include "/usr/include/clipper/core/container.h"
  #include "/usr/include/clipper/core/container_hkl.h"
  #include "/usr/include/clipper/core/container_map.h"
  #include "/usr/include/clipper/core/container_types.h"
  #include "/usr/include/clipper/core/coords.h"
  #include "/usr/include/clipper/core/derivs.h"
  #include "/usr/include/clipper/core/fftmap.h"
  #include "/usr/include/clipper/core/fftmap_sparse.h"
  #include "/usr/include/clipper/core/hkl_compute.h"
  #include "/usr/include/clipper/core/hkl_data.h"
  #include "/usr/include/clipper/core/hkl_datatypes.h"
  #include "/usr/include/clipper/core/hkl_info.h"
  #include "/usr/include/clipper/core/hkl_lookup.h"
  #include "/usr/include/clipper/core/hkl_operators.h"
  #include "/usr/include/clipper/core/map_interp.h"
  #include "/usr/include/clipper/core/map_utils.h"
  #include "/usr/include/clipper/core/nxmap.h"
  #include "/usr/include/clipper/core/nxmap_operator.h"
  #include "/usr/include/clipper/core/ramachandran.h"
  #include "/usr/include/clipper/core/resol_basisfn.h"
  #include "/usr/include/clipper/core/resol_fn.h"
  #include "/usr/include/clipper/core/resol_targetfn.h"
  #include "/usr/include/clipper/core/rotation.h"
  #include "/usr/include/clipper/core/spacegroup.h"
  #include "/usr/include/clipper/core/spacegroup_data.h"
  #include "/usr/include/clipper/core/symop.h"
  #include "/usr/include/clipper/core/test_core.h"
  #include "/usr/include/clipper/core/test_data.h"
  #include "/usr/include/clipper/core/xmap.h"
  #include "/usr/include/clipper/minimal-clipper-hkl.h"
  #include "/usr/include/clipper/minimal-clipper-map.h"
  #include "/usr/include/clipper/minimol/container_minimol.h"
  #include "/usr/include/clipper/minimol/minimol.h"
  #include "/usr/include/clipper/minimol/minimol_data.h"
  #include "/usr/include/clipper/minimol/minimol_io.h"
  #include "/usr/include/clipper/minimol/minimol_seq.h"
  #include "/usr/include/clipper/minimol/minimol_utils.h"
  #include "/usr/include/clipper/mmdb/clipper_mmdb.h"
  #include "/usr/include/clipper/phs/phs_io.h"

  // add namespaces
  namespace clipper{typedef int tmp_add_type_1;}
  clipper::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace clipper{namespace data{typedef int tmp_add_type_2;}}
  clipper::data::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace clipper{namespace data32{typedef int tmp_add_type_3;}}
  clipper::data32::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace clipper{namespace data64{typedef int tmp_add_type_4;}}
  clipper::data64::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace clipper{namespace datatypes{typedef int tmp_add_type_5;}}
  clipper::datatypes::tmp_add_type_5 tmp_add_func_5(){return 0;};

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/v9LlgiNeUE/dump1.h"

In file included from /tmp/v9LlgiNeUE/dump1.h:18:
/usr/include/clipper/clipper-cctbx.h:7:10: fatal error: clipper/cctbx/clipper_cctbx.h: No such file or directory
    7 | #include "clipper/cctbx/clipper_cctbx.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.