1libc {
2  GLIBC_2.0 {
3    # global variables
4    __ctype_b; __ctype32_b; __ctype_tolower; __ctype_toupper;
5    _tolower; _toupper;
6
7    # i*
8    isalnum; isalpha; isascii; isblank; iscntrl; isdigit; isgraph; islower;
9    isprint; ispunct; isspace; isupper; isxdigit;
10
11    # t*
12    toascii; tolower; toupper;
13  }
14  GLIBC_2.2 {
15    # global variables
16    __ctype32_tolower; __ctype32_toupper;
17  }
18  GLIBC_2.3 {
19    isctype; __isctype;
20
21    # functions used by optimized macros in ctype.h
22    __ctype_b_loc; __ctype_tolower_loc; __ctype_toupper_loc;
23  }
24  GLIBC_PRIVATE {
25    __ctype_init;
26  }
27}
28