[Exim] Warning message when compiling 3.12...

While compiling 3.12 on RedHat Linux 6.0 (2.2.5-22smp i686) I noticed the
following when compiling with PAM (EXTRALIBS = -ldl -lpam) support:

gcc -c -O call_pam.c
call_pam.c: In function `auth_call_pam':
call_pam.c:123: warning: assignment from incompatible pointer type

Everything else seemed to work just fine... This isn't something I need to
worry about is it?

Thanks...

--
Jeff Carnahan - jcarnahan@???