I have a program whose PACKAGE and PACKAGE_NAME are the same; compiling cmdline.c gives:

cmdline.c: In function ‘cmdline_parser_print_version’:
cmdline.c:98:73: warning: this condition has identical branches [-Wduplicated-branches]
   98 |      (strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : CMDLINE_PARSER_PACKAGE),
      |                                                                         ^
cmdline.c: In function ‘cmdline_parser_required’:
cmdline.c:321:1: warning: function might be candidate for attribute ‘const’ [-Wsuggest-attribute=const]
  321 | cmdline_parser_required (struct gengetopt_args_info *args_info, const char *prog_name)
      | ^~~~~~~~~~~~~~~~~~~~~~~

This is obviously a minor annoyance, but it would be nice to fix if it were easy, either by adding a GCC pragma to disable the warning (a little hacky), or by detecting this case and avoiding emitting the test (perhaps a bit harder?).