If we don't have a prototype for crypt() we shouldn't

be calling it.

Casting to the desired pointer return type hides the 
truncation of the return value when sizeof(ptr) > 
sizeof(int) and no prototype was included.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@393365 13f79535-47bb-0310-9956-ffa450edef68