When I try to compile a program with libpq I get the message /usr/lib/libpq.so: undefined reference to `crypt' I have unistd.h and _XOPEN_SOURCE in my program so what is going on here? Where is the crypt function? -- Matthew Parry <mettw@bowerbird.com.au> <URL:http://www.bowerbird.com.au/> - "There now, didn't I tell you to keep a good count? Well, there's and end of the story. God knows there's no going on with it now." - Sancho Panza.