Temporary header file '/tmp/q_RGLyB_5Y/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _TIME_BITS 64
#define _FILE_OFFSET_BITS 64
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED

  // add includes
  #include "/usr/include/libxml++-2.6/libxml++/attribute.h"
  #include "/usr/include/libxml++-2.6/libxml++/attributedeclaration.h"
  #include "/usr/include/libxml++-2.6/libxml++/attributenode.h"
  #include "/usr/include/libxml++-2.6/libxml++/document.h"
  #include "/usr/include/libxml++-2.6/libxml++/dtd.h"
  #include "/usr/include/libxml++-2.6/libxml++/exceptions/exception.h"
  #include "/usr/include/libxml++-2.6/libxml++/exceptions/internal_error.h"
  #include "/usr/include/libxml++-2.6/libxml++/exceptions/parse_error.h"
  #include "/usr/include/libxml++-2.6/libxml++/exceptions/validity_error.h"
  #include "/usr/include/libxml++-2.6/libxml++/exceptions/wrapped_exception.h"
  #include "/usr/include/libxml++-2.6/libxml++/io/istreamparserinputbuffer.h"
  #include "/usr/include/libxml++-2.6/libxml++/io/ostreamoutputbuffer.h"
  #include "/usr/include/libxml++-2.6/libxml++/io/outputbuffer.h"
  #include "/usr/include/libxml++-2.6/libxml++/io/parserinputbuffer.h"
  #include "/usr/include/libxml++-2.6/libxml++/keepblanks.h"
  #include "/usr/include/libxml++-2.6/libxml++/libxml++.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/cdatanode.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/commentnode.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/contentnode.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/element.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/entitydeclaration.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/entityreference.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/node.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/processinginstructionnode.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/textnode.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/xincludeend.h"
  #include "/usr/include/libxml++-2.6/libxml++/nodes/xincludestart.h"
  #include "/usr/include/libxml++-2.6/libxml++/noncopyable.h"
  #include "/usr/include/libxml++-2.6/libxml++/parsers/domparser.h"
  #include "/usr/include/libxml++-2.6/libxml++/parsers/parser.h"
  #include "/usr/include/libxml++-2.6/libxml++/parsers/saxparser.h"
  #include "/usr/include/libxml++-2.6/libxml++/parsers/textreader.h"
  #include "/usr/include/libxml++-2.6/libxml++/relaxngschema.h"
  #include "/usr/include/libxml++-2.6/libxml++/schema.h"
  #include "/usr/include/libxml++-2.6/libxml++/schemabase.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/dtdvalidator.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/relaxngvalidator.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/schemavalidator.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/schemavalidatorbase.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/validator.h"
  #include "/usr/include/libxml++-2.6/libxml++/validators/xsdvalidator.h"
  #include "/usr/include/libxml++-2.6/libxml++/xsdschema.h"
  #include "/usr/lib/arm-linux-gnueabihf/libxml++-2.6/include/libxml++config.h"

  // add namespaces
  namespace Glib{typedef int tmp_add_type_1;}
  Glib::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace Glib{namespace Ascii{typedef int tmp_add_type_2;}}
  Glib::Ascii::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace Glib{namespace Unicode{typedef int tmp_add_type_3;}}
  Glib::Unicode::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace xmlpp{typedef int tmp_add_type_4;}
  xmlpp::tmp_add_type_4 tmp_add_func_4(){return 0;};

  // add classes
  _GArray* tmp_add_class_0;
  _GByteArray* tmp_add_class_1;
  _GCompletion* tmp_add_class_2;
  _GCond* tmp_add_class_3;
  _GDate* tmp_add_class_4;
  _GDebugKey* tmp_add_class_5;
  _GDoubleIEEE754* tmp_add_class_6;
  _GError* tmp_add_class_7;
  _GFloatIEEE754* tmp_add_class_8;
  _GHashTableIter* tmp_add_class_9;
  _GHook* tmp_add_class_10;
  _GHookList* tmp_add_class_11;
  _GIOChannel* tmp_add_class_12;
  _GIOFuncs* tmp_add_class_13;
  _GList* tmp_add_class_14;
  _GLogField* tmp_add_class_15;
  _GMarkupParser* tmp_add_class_16;
  _GMemVTable* tmp_add_class_17;
  _GMutex* tmp_add_class_18;
  _GNode* tmp_add_class_19;
  _GOnce* tmp_add_class_20;
  _GOptionEntry* tmp_add_class_21;
  _GPollFD* tmp_add_class_22;
  _GPrivate* tmp_add_class_23;
  _GPtrArray* tmp_add_class_24;
  _GQueue* tmp_add_class_25;
  _GRWLock* tmp_add_class_26;
  _GRecMutex* tmp_add_class_27;
  _GSList* tmp_add_class_28;
  _GScanner* tmp_add_class_29;
  _GScannerConfig* tmp_add_class_30;
  _GSource* tmp_add_class_31;
  _GSourceCallbackFuncs* tmp_add_class_32;
  _GSourceFuncs* tmp_add_class_33;
  _GStaticPrivate* tmp_add_class_34;
  _GStaticRWLock* tmp_add_class_35;
  _GStaticRecMutex* tmp_add_class_36;
  _GString* tmp_add_class_37;
  _GThread* tmp_add_class_38;
  _GThreadFunctions* tmp_add_class_39;
  _GThreadPool* tmp_add_class_40;
  _GTimeVal* tmp_add_class_41;
  _GTokenValue* tmp_add_class_42;
  _GTrashStack* tmp_add_class_43;
  _GTuples* tmp_add_class_44;
  _GUriParamsIter* tmp_add_class_45;
  _GVariantBuilder* tmp_add_class_46;
  _GVariantDict* tmp_add_class_47;
  _GVariantIter* tmp_add_class_48;
  _G_fpos64_t* tmp_add_class_49;
  _G_fpos_t* tmp_add_class_50;
  _IO_cookie_io_functions_t* tmp_add_class_51;
  ucontext_t* tmp_add_class_52;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/q_RGLyB_5Y/dump1.h"  -I/usr/lib/arm-linux-gnueabihf/libxml\+\+-2.6/include -I/usr/include/libxml\+\+-2.6 -I/usr/include/glibmm-2.4 -I/usr/include/glib-2.0 -I/lib/arm-linux-gnueabihf/glibmm-2.4/include -I/lib/arm-linux-gnueabihf/glib-2.0/include