Temporary header file '/tmp/BKcANPbaIG/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/nanovdb/CNanoVDB.h"
  #include "/usr/include/nanovdb/NanoVDB.h"
  #include "/usr/include/nanovdb/PNanoVDB.h"
  #include "/usr/include/nanovdb/util/CSampleFromVoxels.h"
  #include "/usr/include/nanovdb/util/CudaDeviceBuffer.h"
  #include "/usr/include/nanovdb/util/DitherLUT.h"
  #include "/usr/include/nanovdb/util/ForEach.h"
  #include "/usr/include/nanovdb/util/GridBuilder.h"
  #include "/usr/include/nanovdb/util/GridChecksum.h"
  #include "/usr/include/nanovdb/util/GridHandle.h"
  #include "/usr/include/nanovdb/util/GridStats.h"
  #include "/usr/include/nanovdb/util/GridValidator.h"
  #include "/usr/include/nanovdb/util/HDDA.h"
  #include "/usr/include/nanovdb/util/HostBuffer.h"
  #include "/usr/include/nanovdb/util/IO.h"
  #include "/usr/include/nanovdb/util/Invoke.h"
  #include "/usr/include/nanovdb/util/NanoToOpenVDB.h"
  #include "/usr/include/nanovdb/util/NodeManager.h"
  #include "/usr/include/nanovdb/util/OpenToNanoVDB.h"
  #include "/usr/include/nanovdb/util/Primitives.h"
  #include "/usr/include/nanovdb/util/Range.h"
  #include "/usr/include/nanovdb/util/Ray.h"
  #include "/usr/include/nanovdb/util/Reduce.h"
  #include "/usr/include/nanovdb/util/SampleFromVoxels.h"
  #include "/usr/include/nanovdb/util/Stencils.h"

  // add namespaces
  namespace nanovdb{typedef int tmp_add_type_1;}
  nanovdb::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace nanovdb{namespace io{typedef int tmp_add_type_2;}}
  nanovdb::io::tmp_add_type_2 tmp_add_func_2(){return 0;};

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

In file included from /tmp/BKcANPbaIG/dump1.h:16:
/usr/include/nanovdb/util/CudaDeviceBuffer.h:21:10: fatal error: cuda_runtime_api.h: No such file or directory
   21 | #include <cuda_runtime_api.h> // for cudaMalloc/cudaMallocManaged/cudaFree
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.