Temporary header file '/tmp/J41Et6YpEb/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _FILE_OFFSET_BITS 64
#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/UnitTest++/AssertException.h"
  #include "/usr/include/UnitTest++/CheckMacros.h"
  #include "/usr/include/UnitTest++/Checks.h"
  #include "/usr/include/UnitTest++/CompositeTestReporter.h"
  #include "/usr/include/UnitTest++/Config.h"
  #include "/usr/include/UnitTest++/CurrentTest.h"
  #include "/usr/include/UnitTest++/DeferredTestReporter.h"
  #include "/usr/include/UnitTest++/DeferredTestResult.h"
  #include "/usr/include/UnitTest++/ExceptionMacros.h"
  #include "/usr/include/UnitTest++/ExecuteTest.h"
  #include "/usr/include/UnitTest++/HelperMacros.h"
  #include "/usr/include/UnitTest++/MemoryOutStream.h"
  #include "/usr/include/UnitTest++/Posix/SignalTranslator.h"
  #include "/usr/include/UnitTest++/Posix/TimeHelpers.h"
  #include "/usr/include/UnitTest++/ReportAssert.h"
  #include "/usr/include/UnitTest++/ReportAssertImpl.h"
  #include "/usr/include/UnitTest++/RequireMacros.h"
  #include "/usr/include/UnitTest++/RequiredCheckException.h"
  #include "/usr/include/UnitTest++/RequiredCheckTestReporter.h"
  #include "/usr/include/UnitTest++/Test.h"
  #include "/usr/include/UnitTest++/TestDetails.h"
  #include "/usr/include/UnitTest++/TestList.h"
  #include "/usr/include/UnitTest++/TestMacros.h"
  #include "/usr/include/UnitTest++/TestReporter.h"
  #include "/usr/include/UnitTest++/TestReporterStdout.h"
  #include "/usr/include/UnitTest++/TestResults.h"
  #include "/usr/include/UnitTest++/TestRunner.h"
  #include "/usr/include/UnitTest++/TestSuite.h"
  #include "/usr/include/UnitTest++/ThrowingTestReporter.h"
  #include "/usr/include/UnitTest++/TimeConstraint.h"
  #include "/usr/include/UnitTest++/TimeHelpers.h"
  #include "/usr/include/UnitTest++/UnitTest++.h"
  #include "/usr/include/UnitTest++/UnitTestPP.h"
  #include "/usr/include/UnitTest++/XmlTestReporter.h"

  // add namespaces
  namespace UnitTest{typedef int tmp_add_type_1;}
  UnitTest::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace UnitTest{namespace CurrentTest{typedef int tmp_add_type_2;}}
  UnitTest::CurrentTest::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace UnitTest{namespace Detail{typedef int tmp_add_type_3;}}
  UnitTest::Detail::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace UnitTest{namespace TimeHelpers{typedef int tmp_add_type_4;}}
  UnitTest::TimeHelpers::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace UnitTestSuite{typedef int tmp_add_type_5;}
  UnitTestSuite::tmp_add_type_5 tmp_add_func_5(){return 0;};

  // add classes
  _G_fpos64_t* tmp_add_class_0;
  _G_fpos_t* tmp_add_class_1;
  _IO_cookie_io_functions_t* tmp_add_class_2;
  itimerval* tmp_add_class_3;
  ucontext_t* tmp_add_class_4;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/J41Et6YpEb/dump1.h"