Starting with commit a684595c0bbd88df71285f43fb27630e3829121e aka
Linux-PAM-1.3.0~14 (Remove "--enable-static-modules" option and support
from Linux-PAM), PAM_SM_* macros have no effect.

 Linux-PAM. It was never official supported and was broken since years.

* configure.ac: Remove --enable-static-modules option.
* doc/man/pam_sm_acct_mgmt.3.xml: Remove PAM_EXTERN.
* doc/man/pam_sm_authenticate.3.xml: Likewise.
* doc/man/pam_sm_chauthtok.3.xml: Likewise.
* doc/man/pam_sm_close_session.3.xml: Likewise.
* doc/man/pam_sm_open_session.3.xml: Likewise.
* doc/man/pam_sm_setcred.3.xml: Likewise.
* libpam/Makefile.am: Remove STATIC_MODULES cases.
* libpam/include/security/pam_modules.h: Remove PAM_STATIC parts.
* libpam/pam_dynamic.c: Likewise.
* libpam/pam_handlers.c: Likewise.
* libpam/pam_private.h: Likewise.
* libpam/pam_static.c: Remove file.
* libpam/pam_static_modules.h: Remove header file.
* modules/pam_access/pam_access.c: Remove PAM_EXTERN and PAM_STATIC parts.
* modules/pam_cracklib/pam_cracklib.c: Likewise.
* modules/pam_debug/pam_debug.c: Likewise.
* modules/pam_deny/pam_deny.c: Likewise.
* modules/pam_echo/pam_echo.c: Likewise.
* modules/pam_env/pam_env.c: Likewise.
* modules/pam_exec/pam_exec.c: Likewise.
* modules/pam_faildelay/pam_faildelay.c: Likewise.
* modules/pam_filter/pam_filter.c: Likewise.
* modules/pam_ftp/pam_ftp.c: Likewise.
* modules/pam_group/pam_group.c: Likewise.
* modules/pam_issue/pam_issue.c: Likewise.
* modules/pam_keyinit/pam_keyinit.c: Likewise.
* modules/pam_lastlog/pam_lastlog.c: Likewise.
* modules/pam_limits/pam_limits.c: Likewise.
* modules/pam_listfile/pam_listfile.c: Likewise.
* modules/pam_localuser/pam_localuser.c: Likewise.
* modules/pam_loginuid/pam_loginuid.c: Likewise.
* modules/pam_mail/pam_mail.c: Likewise.
* modules/pam_mkhomedir/pam_mkhomedir.c: Likewise.
* modules/pam_motd/pam_motd.c: Likewise.
* modules/pam_namespace/pam_namespace.c: Likewise.
* modules/pam_nologin/pam_nologin.c: Likewise.
* modules/pam_permit/pam_permit.c: Likewise.
* modules/pam_pwhistory/pam_pwhistory.c: Likewise.
* modules/pam_rhosts/pam_rhosts.c: Likewise.
* modules/pam_rootok/pam_rootok.c: Likewise.
* modules/pam_securetty/pam_securetty.c: Likewise.
* modules/pam_selinux/pam_selinux.c: Likewise.
* modules/pam_sepermit/pam_sepermit.c: Likewise.
* modules/pam_shells/pam_shells.c: Likewise.
* modules/pam_stress/pam_stress.c: Likewise.
* modules/pam_succeed_if/pam_succeed_if.c: Likewise.
* modules/pam_tally/pam_tally.c: Likewise.
* modules/pam_tally2/pam_tally2.c: Likewise.
* modules/pam_time/pam_time.c: Likewise.
* modules/pam_timestamp/pam_timestamp.c: Likewise.
* modules/pam_tty_audit/pam_tty_audit.c: Likewise.
* modules/pam_umask/pam_umask.c: Likewise.
* modules/pam_userdb/pam_userdb.c: Likewise.
* modules/pam_warn/pam_warn.c: Likewise.
* modules/pam_wheel/pam_wheel.c: Likewise.
* modules/pam_xauth/pam_xauth.c: Likewise.
* modules/pam_unix/Makefile.am: Remove STATIC_MODULES part.
* modules/pam_unix/pam_unix_acct.c: Remove PAM_STATIC part.
* modules/pam_unix/pam_unix_auth.c: Likewise.
* modules/pam_unix/pam_unix_passwd.c: Likewise.
* modules/pam_unix/pam_unix_sess.c: Likewise.
* modules/pam_unix/pam_unix_static.c: Removed.
* modules/pam_unix/pam_unix_static.h: Removed.
* po/POTFILES.in: Remove removed files.
* tests/tst-dlopen.c: Remove PAM_STATIC part.

* modules/pam_warn/pam_warn.c (log_items): Take "flags" argument and
log it using pam_syslog.
(pam_sm_authenticate, pam_sm_setcred, pam_sm_chauthtok,
pam_sm_acct_mgmt, pam_sm_open_session, pam_sm_close_session): Pass
"flags" argument to log_items.

Purpose of commit: cleanup

Commit summary:
---------------
Suppress unused parameters warning (by ldv)

Purpose of commit: new feature

Commit summary:
---------------

Add pam_syslog to unify log messages from PAM modules.

Purpose of commit: bugfix

Commit summary:
---------------

configure should set _GNU_SOURCE/_BSD_SOURCE

Purpose of commit: cleanup

Commit summary:
---------------

Fix all occurrence of dereferencing type-punned pointer will break
strict-aliasing rules warnings

Purpose of commit: cleanup

Commit summary:
---------------
This was a reimplementation of pam_warn to be more useful. I did it in
conjuction with testing the new setcred behavior.