Temporary header file '/tmp/NLsQVDHVQw/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/lip/forest.h"
  #include "/usr/include/lip/interpol.h"
  #include "/usr/include/lip/liblip.h"
  #include "/usr/include/lip/memblock.h"

  // add namespaces
  namespace TNT{typedef int tmp_add_type_1;}
  TNT::tmp_add_type_1 tmp_add_func_1(){return 0;};

  // add classes
  Forest* tmp_add_class_0;
  HeadStruc* tmp_add_class_1;
  Interpolant* tmp_add_class_2;
  STCInterpolant* tmp_add_class_3;
  SVSetNode* tmp_add_class_4;
  _G_fpos64_t* tmp_add_class_5;
  _G_fpos_t* tmp_add_class_6;
  _IO_cookie_io_functions_t* tmp_add_class_7;
  mallinfo2* tmp_add_class_8;
  support_vector* tmp_add_class_9;

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

In file included from /usr/include/lip/interpol.h:93,
                 from /tmp/NLsQVDHVQw/dump1.h:13:
/usr/include/lip/forest.h:105:12: error: redefinition of ‘const double Infinity’
  105 | const real Infinity  = 1.0e16;
      |            ^~~~~~~~
In file included from /tmp/NLsQVDHVQw/dump1.h:12:
/usr/include/lip/forest.h:105:12: note: ‘const double Infinity’ previously defined here
  105 | const real Infinity  = 1.0e16;
      |            ^~~~~~~~
/usr/include/lip/forest.h:106:12: error: redefinition of ‘const double SInfinity’
  106 | const real SInfinity = 1.0e7; // "small infinity" for boundary points (to avoid loss of precision when taking 1-x[i])
      |            ^~~~~~~~~
/usr/include/lip/forest.h:106:12: note: ‘const double SInfinity’ previously defined here
  106 | const real SInfinity = 1.0e7; // "small infinity" for boundary points (to avoid loss of precision when taking 1-x[i])
      |            ^~~~~~~~~
/usr/include/lip/forest.h:153:7: error: redefinition of ‘class support_vector’
  153 | class support_vector {
      |       ^~~~~~~~~~~~~~
/usr/include/lip/forest.h:153:7: note: previous definition of ‘class support_vector’
  153 | class support_vector {
      |       ^~~~~~~~~~~~~~
/usr/include/lip/forest.h:185:7: error: redefinition of ‘class SVSetNode’
  185 | class SVSetNode {
      |       ^~~~~~~~~
/usr/include/lip/forest.h:185:7: note: previous definition of ‘class SVSetNode’
  185 | class SVSetNode {
      |       ^~~~~~~~~
/usr/include/lip/forest.h:274:8: error: redefinition of ‘struct HeadStruc’
  274 | struct HeadStruc {
      |        ^~~~~~~~~
/usr/include/lip/forest.h:274:8: note: previous definition of ‘struct HeadStruc’
  274 | struct HeadStruc {
      |        ^~~~~~~~~
/usr/include/lip/forest.h:279:7: error: redefinition of ‘class Forest’
  279 | class Forest {
      |       ^~~~~~
/usr/include/lip/forest.h:279:7: note: previous definition of ‘class Forest’
  279 | class Forest {
      |       ^~~~~~
/tmp/NLsQVDHVQw/dump1.h:30:3: error: ‘mallinfo2’ does not name a type
   30 |   mallinfo2* tmp_add_class_8;
      |   ^~~~~~~~~