Temporary header file '/tmp/RWPJcr32fo/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/squizz/align/clustal.h"
  #include "/usr/include/squizz/align/fasta2.h"
  #include "/usr/include/squizz/align/mega.h"
  #include "/usr/include/squizz/align/msf.h"
  #include "/usr/include/squizz/align/nexusi.h"
  #include "/usr/include/squizz/align/phylipi.h"
  #include "/usr/include/squizz/align/phylips.h"
  #include "/usr/include/squizz/align/stock.h"
  #include "/usr/include/squizz/align.h"
  #include "/usr/include/squizz/sequence/codata.h"
  #include "/usr/include/squizz/sequence/embl.h"
  #include "/usr/include/squizz/sequence/fasta.h"
  #include "/usr/include/squizz/sequence/gcg.h"
  #include "/usr/include/squizz/sequence/gde.h"
  #include "/usr/include/squizz/sequence/genbank.h"
  #include "/usr/include/squizz/sequence/ig.h"
  #include "/usr/include/squizz/sequence/nbrf.h"
  #include "/usr/include/squizz/sequence/raw.h"
  #include "/usr/include/squizz/sequence/sprot.h"
  #include "/usr/include/squizz/sequence.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;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/RWPJcr32fo/dump1.h"  -I/usr/include/squizz