Temporary header file '/tmp/EMLgQ0HxDs/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/libnetfilter_conntrack/libnetfilter_conntrack.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_dccp.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_icmp.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_ipv4.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_ipv6.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_sctp.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_tcp.h"
  #include "/usr/include/libnetfilter_conntrack/libnetfilter_conntrack_udp.h"
  #include "/usr/include/libnetfilter_conntrack/linux_nf_conntrack_common.h"
  #include "/usr/include/libnetfilter_conntrack/linux_nfnetlink_conntrack.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;
  linger* tmp_add_class_16;
  mmsghdr* tmp_add_class_17;
  msghdr* tmp_add_class_18;
  nfattr* tmp_add_class_19;
  nfct_attr_grp_addr* tmp_add_class_20;
  nfct_attr_grp_ctrs* tmp_add_class_21;
  nfct_attr_grp_icmp* tmp_add_class_22;
  nfct_attr_grp_ipv4* tmp_add_class_23;
  nfct_attr_grp_ipv6* tmp_add_class_24;
  nfct_attr_grp_port* tmp_add_class_25;
  nfct_filter_dump_mark* tmp_add_class_26;
  nfct_filter_ipv4* tmp_add_class_27;
  nfct_filter_ipv6* tmp_add_class_28;
  nfct_filter_proto* tmp_add_class_29;
  nfgenmsg* tmp_add_class_30;
  nfnl_callback* tmp_add_class_31;
  nfnlhdr* tmp_add_class_32;
  nl_mmap_hdr* tmp_add_class_33;
  nl_mmap_req* tmp_add_class_34;
  nl_pktinfo* tmp_add_class_35;
  nla_bitfield32* tmp_add_class_36;
  nlattr* tmp_add_class_37;
  nlmsgerr* tmp_add_class_38;
  nlmsghdr* tmp_add_class_39;
  osockaddr* tmp_add_class_40;
  sockaddr* tmp_add_class_41;
  sockaddr_in* tmp_add_class_42;
  sockaddr_in6* tmp_add_class_43;
  sockaddr_nl* tmp_add_class_44;
  sockaddr_storage* tmp_add_class_45;
  ucred* tmp_add_class_46;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/EMLgQ0HxDs/dump1.h"

