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

  // add includes
  #include "/usr/include/calc/align32.h"
  #include "/usr/include/calc/alloc.h"
  #include "/usr/include/calc/args.h"
  #include "/usr/include/calc/blkcpy.h"
  #include "/usr/include/calc/block.h"
  #include "/usr/include/calc/byteswap.h"
  #include "/usr/include/calc/calc.h"
  #include "/usr/include/calc/calcerr.h"
  #include "/usr/include/calc/cmath.h"
  #include "/usr/include/calc/conf.h"
  #include "/usr/include/calc/config.h"
  #include "/usr/include/calc/custom.h"
  #include "/usr/include/calc/decl.h"
  #include "/usr/include/calc/endian_calc.h"
  #include "/usr/include/calc/file.h"
  #include "/usr/include/calc/fposval.h"
  #include "/usr/include/calc/func.h"
  #include "/usr/include/calc/hash.h"
  #include "/usr/include/calc/have_const.h"
  #include "/usr/include/calc/have_fpos.h"
  #include "/usr/include/calc/have_fpos_pos.h"
  #include "/usr/include/calc/have_getpgid.h"
  #include "/usr/include/calc/have_getprid.h"
  #include "/usr/include/calc/have_getsid.h"
  #include "/usr/include/calc/have_gettime.h"
  #include "/usr/include/calc/have_memmv.h"
  #include "/usr/include/calc/have_newstr.h"
  #include "/usr/include/calc/have_offscl.h"
  #include "/usr/include/calc/have_posscl.h"
  #include "/usr/include/calc/have_rusage.h"
  #include "/usr/include/calc/have_stdlib.h"
  #include "/usr/include/calc/have_strdup.h"
  #include "/usr/include/calc/have_string.h"
  #include "/usr/include/calc/have_times.h"
  #include "/usr/include/calc/have_uid_t.h"
  #include "/usr/include/calc/have_unistd.h"
  #include "/usr/include/calc/have_unused.h"
  #include "/usr/include/calc/have_urandom.h"
  #include "/usr/include/calc/have_ustat.h"
  #include "/usr/include/calc/hist.h"
  #include "/usr/include/calc/jump.h"
  #include "/usr/include/calc/label.h"
  #include "/usr/include/calc/lib_calc.h"
  #include "/usr/include/calc/lib_util.h"
  #include "/usr/include/calc/longbits.h"
  #include "/usr/include/calc/nametype.h"
  #include "/usr/include/calc/opcodes.h"
  #include "/usr/include/calc/prime.h"
  #include "/usr/include/calc/qmath.h"
  #include "/usr/include/calc/sha1.h"
  #include "/usr/include/calc/str.h"
  #include "/usr/include/calc/symbol.h"
  #include "/usr/include/calc/terminal.h"
  #include "/usr/include/calc/token.h"
  #include "/usr/include/calc/value.h"
  #include "/usr/include/calc/zmath.h"
  #include "/usr/include/calc/zrand.h"
  #include "/usr/include/calc/zrandom.h"

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

In file included from /tmp/LmYkCemqAK/dump1.h:59:
/usr/include/calc/prime.h:36:11: fatal error: calc/math.h: No such file or directory
   36 | # include <calc/math.h>
      |           ^~~~~~~~~~~~~
compilation terminated.