Command explanations
--enable-static-libpam : This command
builds static PAM libraries as well as the dynamic libraries.
--with-mailspool=/var/mail : This command
makes the mailspool directory FHS compliant.
--enable-both-confs : This command lets
the local administrator choose which configuration file setup to
use.
mv /lib/libpam.a /lib/libpam_misc.a /lib/libpamc.a
/usr/lib : This command move the static libraries to
/usr/lib to comply with FHS.