Temporary header file '/tmp/VaFcm1OQl2/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/event.h" // add classes ev_any_watcher* tmp_add_class_0; ev_async* tmp_add_class_1; ev_check* tmp_add_class_2; ev_child* tmp_add_class_3; ev_cleanup* tmp_add_class_4; ev_embed* tmp_add_class_5; ev_fork* tmp_add_class_6; ev_idle* tmp_add_class_7; ev_io* tmp_add_class_8; ev_periodic* tmp_add_class_9; ev_prepare* tmp_add_class_10; ev_signal* tmp_add_class_11; ev_stat* tmp_add_class_12; ev_timer* tmp_add_class_13; ev_watcher* tmp_add_class_14; ev_watcher_list* tmp_add_class_15; ev_watcher_time* tmp_add_class_16; event* tmp_add_class_17; itimerval* tmp_add_class_18; statx_timestamp* tmp_add_class_19; ucontext_t* tmp_add_class_20; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/VaFcm1OQl2/dump1.h"