Temporary header file '/tmp/XcFiQ4JfVu/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/md2.h"
  #include "/usr/include/md4.h"
  #include "/usr/include/md5.h"
  #include "/usr/include/ripemd.h"
  #include "/usr/include/rmd160.h"
  #include "/usr/include/sha.h"
  #include "/usr/include/sha1.h"
  #include "/usr/include/sha2.h"
  #include "/usr/include/sha256.h"
  #include "/usr/include/sha512.h"

  // add classes
  MD2Context* tmp_add_class_0;
  MD4Context* tmp_add_class_1;
  MD5Context* tmp_add_class_2;
  RMD160Context* tmp_add_class_3;
  _SHA2_CTX* tmp_add_class_4;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/XcFiQ4JfVu/dump1.h"