check_public.c: In function ‘parse_display_pass’:
check_public.c:32:32: error: passing argument 1 of ‘putenv’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
   32 |                         putenv("DISPLAY=");
      |                                ^~~~~~~~~~
In file included from check_public.c:4:
/usr/include/stdlib.h:148:19: note: expected ‘char *’ but argument is of type ‘const char *’
  148 | extern int putenv(char *);
      |                   ^~~~~~
check_public.c:57:16: error: passing argument 1 of ‘putenv’ discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
   57 |         putenv("DISPLAY=");
      |                ^~~~~~~~~~
/usr/include/stdlib.h:148:19: note: expected ‘char *’ but argument is of type ‘const char *’
  148 | extern int putenv(char *);
      |                   ^~~~~~
check_public.c: In function ‘parse_display_fail...