Avoid locale specific ctype routines.

libraries/libldap/addentry.c

libraries/libldap/disptmpl.c

libraries/libldap/dn.c

libraries/libldap/dsparse.c

libraries/libldap/free.c

libraries/libldap/friendly.c

libraries/libldap/getattr.c

libraries/libldap/getentry.c

libraries/libldap/getfilter.c

libraries/libldap/messages.c

libraries/libldap/references.c

libraries/libldap/schema.c

libraries/libldap/search.c

libraries/libldap/sortctrl.c

libraries/libldap/ufn.c

libraries/libldap/url.c

libraries/libldap/vlvctrl.c