regex.c: In function ‘re_match’:
regex.c:155:45: error: pointer ‘stack_start’ may be used after ‘realloc’ [-Werror=use-after-free]
  155 |         (& (stack_temporary [(stack_pointer - stack_start)]));          \
      |                                             ^
regex.c:874:9: note: in expansion of macro ‘PUSH_FAILURE_POINT’
  874 |         PUSH_FAILURE_POINT ((pattern_pc + offset), match_pc);
      |         ^~~~~~~~~~~~~~~~~~
regex.c:149:11: note: call to ‘realloc’ here
  149 |          (realloc                                                       \
      |          ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |           (stack_start, (stack_length * (sizeof (unsigned char *)))))); \
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
regex.c:874:9: note: in expansion of macro ‘PUSH_FAILURE_POINT’
  874 |         PUSH_FAILURE_POINT ((pattern_pc + offset), match_pc);
      |         ^~~~~~~~~~~~~~~~~~
regex.c:155:45: error: pointer ‘stack_start’ may be used after ‘realloc’ [-Werror=use-after-free]
  155 |         (& (stack_temporary [(stack_pointer - stack_start)]));          \
      |                                             ^
regex.c:982:9: note: in expansion of macro ‘PUSH_FAILURE_POINT’
  982 |         PUSH_FAILURE_POINT (NULL, NULL);
      |         ^~~~~~~~~~~~~~~~~~
regex.c:149:11: note: call to ‘realloc’ here
  149 |          (realloc                                                       \
      |          ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |           (stack_start, (stack_length * (sizeof (unsigned char *)))))); \
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
regex.c:982:9: note: in expansion of macro ‘PUSH_FAILURE_POINT’
  982 |         PUSH_FAILURE_POINT (NULL, NULL);
      |         ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[1]: *** [Makefile:182: regex.o] Error 1
make[1]: Leaving directory '/home/amadorbarragan/mit-scheme-12.0.90/src/microcode'
make: *** [Makefile:753: microcode/scheme] Error 2