libldap_r/rq.c uses undefined ch_calloc() (ITS#2510)

[h.b.furuseth@usit.uio.no]

Full_Name: Hallvard B. Furuseth
Version: HEAD
OS: Solaris
URL: 
Submission from: (NULL) (129.240.186.42)


libldap_r/rq.c uses ch_calloc() and ch_free().
However, these are slapd functions, they are not defined in libldap_r.
That may cause linker errors.