Temporary header file '/tmp/tm0l9e1w7_/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/nspr/nspr.h"
  #include "/usr/include/nspr/obsolete/pralarm.h"
  #include "/usr/include/nspr/obsolete/probslet.h"
  #include "/usr/include/nspr/obsolete/protypes.h"
  #include "/usr/include/nspr/obsolete/prsem.h"
  #include "/usr/include/nspr/plarena.h"
  #include "/usr/include/nspr/plarenas.h"
  #include "/usr/include/nspr/plbase64.h"
  #include "/usr/include/nspr/plerror.h"
  #include "/usr/include/nspr/plgetopt.h"
  #include "/usr/include/nspr/plhash.h"
  #include "/usr/include/nspr/plstr.h"
  #include "/usr/include/nspr/pratom.h"
  #include "/usr/include/nspr/prbit.h"
  #include "/usr/include/nspr/prclist.h"
  #include "/usr/include/nspr/prcmon.h"
  #include "/usr/include/nspr/prcountr.h"
  #include "/usr/include/nspr/prcpucfg.h"
  #include "/usr/include/nspr/prcvar.h"
  #include "/usr/include/nspr/prdtoa.h"
  #include "/usr/include/nspr/prenv.h"
  #include "/usr/include/nspr/prerr.h"
  #include "/usr/include/nspr/prerror.h"
  #include "/usr/include/nspr/prinet.h"
  #include "/usr/include/nspr/prinit.h"
  #include "/usr/include/nspr/prinrval.h"
  #include "/usr/include/nspr/prio.h"
  #include "/usr/include/nspr/pripcsem.h"
  #include "/usr/include/nspr/private/pprio.h"
  #include "/usr/include/nspr/private/pprthred.h"
  #include "/usr/include/nspr/private/prpriv.h"
  #include "/usr/include/nspr/prlink.h"
  #include "/usr/include/nspr/prlock.h"
  #include "/usr/include/nspr/prlog.h"
  #include "/usr/include/nspr/prlong.h"
  #include "/usr/include/nspr/prmem.h"
  #include "/usr/include/nspr/prmon.h"
  #include "/usr/include/nspr/prmwait.h"
  #include "/usr/include/nspr/prnetdb.h"
  #include "/usr/include/nspr/prolock.h"
  #include "/usr/include/nspr/prpdce.h"
  #include "/usr/include/nspr/prprf.h"
  #include "/usr/include/nspr/prproces.h"
  #include "/usr/include/nspr/prrng.h"
  #include "/usr/include/nspr/prrwlock.h"
  #include "/usr/include/nspr/prshm.h"
  #include "/usr/include/nspr/prshma.h"
  #include "/usr/include/nspr/prsystem.h"
  #include "/usr/include/nspr/prthread.h"
  #include "/usr/include/nspr/prtime.h"
  #include "/usr/include/nspr/prtpool.h"
  #include "/usr/include/nspr/prtrace.h"
  #include "/usr/include/nspr/prtypes.h"
  #include "/usr/include/nspr/prvrsion.h"
  #include "/usr/include/nspr/prwin16.h"

  // add classes
  PLArena* tmp_add_class_0;
  PLArenaPool* tmp_add_class_1;
  PLHashAllocOps* tmp_add_class_2;
  PLHashEntry* tmp_add_class_3;
  PLHashTable* tmp_add_class_4;
  PLLongOpt* tmp_add_class_5;
  PLOptState* tmp_add_class_6;
  PRCListStr* tmp_add_class_7;
  PRCallOnceType* tmp_add_class_8;
  PRDirEntry* tmp_add_class_9;
  PRErrorMessage* tmp_add_class_10;
  PRErrorTable* tmp_add_class_11;
  PRExplodedTime* tmp_add_class_12;
  PRFileDesc* tmp_add_class_13;
  PRFileInfo* tmp_add_class_14;
  PRFileInfo64* tmp_add_class_15;
  PRHostEnt* tmp_add_class_16;
  PRIOMethods* tmp_add_class_17;
  PRIOVec* tmp_add_class_18;
  PRIPv6Addr* tmp_add_class_19;
  PRJobIoDesc* tmp_add_class_20;
  PRLibSpec* tmp_add_class_21;
  PRLinger* tmp_add_class_22;
  PRLogModuleInfo* tmp_add_class_23;
  PRMcastRequest* tmp_add_class_24;
  PRMemoryDescriptor* tmp_add_class_25;
  PRNetAddr* tmp_add_class_26;
  PRPollDesc* tmp_add_class_27;
  PRProtoEnt* tmp_add_class_28;
  PRRecvWait* tmp_add_class_29;
  PRSendFileData* tmp_add_class_30;
  PRSocketOptionData* tmp_add_class_31;
  PRStackElemStr* tmp_add_class_32;
  PRStaticLinkTable* tmp_add_class_33;
  PRTimeParameters* tmp_add_class_34;
  PRTraceEntry* tmp_add_class_35;
  PR_fd_set* tmp_add_class_36;
  _G_fpos64_t* tmp_add_class_37;
  _G_fpos_t* tmp_add_class_38;
  _IO_cookie_io_functions_t* tmp_add_class_39;
  addrinfo* tmp_add_class_40;
  cmsghdr* tmp_add_class_41;
  gaicb* tmp_add_class_42;
  group_filter* tmp_add_class_43;
  group_req* tmp_add_class_44;
  group_source_req* tmp_add_class_45;
  hostent* tmp_add_class_46;
  in6_addr* tmp_add_class_47;
  in6_pktinfo* tmp_add_class_48;
  in_addr* tmp_add_class_49;
  in_pktinfo* tmp_add_class_50;
  iovec* tmp_add_class_51;
  ip6_mtuinfo* tmp_add_class_52;
  ip_mreq* tmp_add_class_53;
  ip_mreq_source* tmp_add_class_54;
  ip_mreqn* tmp_add_class_55;
  ip_msfilter* tmp_add_class_56;
  ip_opts* tmp_add_class_57;
  ipv6_mreq* tmp_add_class_58;
  linger* tmp_add_class_59;
  mmsghdr* tmp_add_class_60;
  msghdr* tmp_add_class_61;
  netent* tmp_add_class_62;
  osockaddr* tmp_add_class_63;
  protoent* tmp_add_class_64;
  rpcent* tmp_add_class_65;
  servent* tmp_add_class_66;
  sockaddr* tmp_add_class_67;
  sockaddr_in* tmp_add_class_68;
  sockaddr_in6* tmp_add_class_69;
  sockaddr_storage* tmp_add_class_70;
  statx_timestamp* tmp_add_class_71;
  ucred* tmp_add_class_72;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/tm0l9e1w7_/dump1.h"  -I/usr/include/nspr -I/usr/include/tirpc