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