Snippets for abook 0.6.2 from FreeBSD 150arm64

Sourced from https://pkg-status.freebsd.org/ampere5/data/latest-per-pkg/abook/0.6.2/150arm64-default.log.

• database.c:740:7: warning: call to undeclared library function 'isalnum' with type 'int (int)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    740 |                 if (isalnum (*str)) *(p++) = *str;
        |                     ^
  

• ./getopt.h:109:13: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C23, conflicting with a previous declaration [-Wdeprecated-non-prototype]
    109 |         extern int getopt();
        |                    ^
  

• filter.c:1961:26: warning: unused variable 'custom_fieldsl' [-Wunused-variable]
   1961 |         abook_field_list *cur, *custom_fieldsl;
        |                                 ^~~~~~~~~~~~~~
  

• getopt.c:217:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    217 |      my_index(str, chr)
        |      ^
  

• getopt.c:294:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    294 |      exchange(argv)
        |      ^
  

• getopt.c:356:6: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    356 |      _getopt_initialize(argc, argv, optstring)
        |      ^
  

• getopt.c:369:26: warning: passing arguments to 'getenv' without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    369 |         posixly_correct = getenv("POSIXLY_CORRECT");
        |                                 ^
  

• getopt.c:469:5: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    469 |     _getopt_internal(argc, argv, optstring, longopts, longind, long_only)
        |     ^
  

• getopt.c:532:26: warning: call to undeclared library function 'strcmp' with type 'int (const char *, const char *)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    532 |                 if (optind != argc && !strcmp(argv[optind], "--"))
        |                                        ^
  

• getopt.c:608:9: warning: call to undeclared library function 'strncmp' with type 'int (const char *, const char *, unsigned long)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    608 |                         if (!strncmp(p->name, nextchar, nameend - nextchar))
        |                              ^
  

• getopt.c:611:27: warning: call to undeclared library function 'strlen' with type 'unsigned long (const char *)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    611 |                                     == (unsigned int) strlen(p->name))
        |                                                       ^
  

• getopt.c:924:5: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
    924 |     getopt(argc, argv, optstring)
        |     ^
  

• ./getopt.h:109:13: warning: a function declaration without a prototype is deprecated in all versions of C and is treated as a zero-parameter prototype in C23, conflicting with a subsequent definition [-Wdeprecated-non-prototype]
    109 |         extern int getopt();
        |                    ^
  

• getopt1.c:67:5: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
     67 |     getopt_long(argc, argv, options, long_options, opt_index)
        |     ^
  

• getopt1.c:83:5: warning: a function definition without a prototype is deprecated in all versions of C and is not supported in C23 [-Wdeprecated-non-prototype]
     83 |     getopt_long_only(argc, argv, options, long_options, opt_index)
        |     ^
  

• remap.c:26:9: warning: returning 'const char *' from a function with result type 'char *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
     26 |         return _("remap key out of range");
        |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• ui.c:308:31: warning: array subscript is of type 'char' [-Wchar-subscripts]
    308 |                         helpline[i-1] = remap_table[helpline[i-1]];
        |                                                    ^~~~~~~~~~~~~~