Temporary header file '/tmp/FhsWfqw1x7/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/libknet.h" // add classes cmsghdr* tmp_add_class_0; group_filter* tmp_add_class_1; group_req* tmp_add_class_2; group_source_req* tmp_add_class_3; in6_addr* tmp_add_class_4; in6_pktinfo* tmp_add_class_5; in_addr* tmp_add_class_6; in_pktinfo* tmp_add_class_7; iovec* tmp_add_class_8; ip6_mtuinfo* tmp_add_class_9; ip_mreq* tmp_add_class_10; ip_mreq_source* tmp_add_class_11; ip_mreqn* tmp_add_class_12; ip_msfilter* tmp_add_class_13; ip_opts* tmp_add_class_14; ipv6_mreq* tmp_add_class_15; knet_compress_info* tmp_add_class_16; knet_crypto_info* tmp_add_class_17; knet_handle_compress_cfg* tmp_add_class_18; knet_handle_crypto_cfg* tmp_add_class_19; knet_handle_stats* tmp_add_class_20; knet_host_status* tmp_add_class_21; knet_link_stats* tmp_add_class_22; knet_link_status* tmp_add_class_23; knet_log_msg* tmp_add_class_24; knet_transport_info* tmp_add_class_25; linger* tmp_add_class_26; mmsghdr* tmp_add_class_27; msghdr* tmp_add_class_28; osockaddr* tmp_add_class_29; sockaddr* tmp_add_class_30; sockaddr_in* tmp_add_class_31; sockaddr_in6* tmp_add_class_32; sockaddr_storage* tmp_add_class_33; ucred* tmp_add_class_34; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/FhsWfqw1x7/dump1.h"