Temporary header file '/tmp/FN5hR9Vwnl/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 // add includes #include "/usr/include/speech-dispatcher/libspeechd.h" #include "/usr/include/speech-dispatcher/libspeechd_version.h" #include "/usr/include/speech-dispatcher/spd_audio_plugin.h" #include "/usr/include/speech-dispatcher/speechd_defines.h" #include "/usr/include/speech-dispatcher/speechd_types.h" #include "/usr/include/libspeechd.h" #include "/usr/include/libspeechd_version.h" #include "/usr/include/spd_audio_plugin.h" #include "/usr/include/speechd_defines.h" #include "/usr/include/speechd_types.h" // 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; spd_audio_plugin* tmp_add_class_3; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/FN5hR9Vwnl/dump1.h"