dnl
dnl "$Id: cups-pam.m4 11342 2013-10-18 20:36:01Z msweet $"
dnl
dnl   PAM stuff for CUPS.
dnl
dnl Copyright 2007-2013 by Apple Inc.
dnl Copyright 1997-2005 by Easy Software Products, all rights reserved.
dnl
dnl These coded instructions, statements, and computer programs are the
dnl property of Apple Inc. and are protected by Federal copyright
dnl law.  Distribution and use rights are outlined in the file "LICENSE.txt"
dnl which should have been included with this file.  If this file is
dnl file is missing or damaged, see the license at "http://www.cups.org/".
dnl

AC_ARG_ENABLE(pam, [  --disable-pam           disable PAM support])
AC_ARG_WITH(pam_module, [  --with-pam-module       specify the PAM module to use])

PAMDIR=""
PAMFILE="pam.std"
PAMLIBS=""
PAMMOD="pam_unknown.so"
PAMMODAUTH="pam_unknown.so"

if test x$enable_pam != xno; then
	SAVELIBS="$LIBS"

	AC_CHECK_LIB(dl,dlopen)
	AC_CHECK_LIB(pam,pam_start)
	AC_CHECK_LIB(pam,pam_set_item,AC_DEFINE(HAVE_PAM_SET_ITEM))
	AC_CHECK_LIB(pam,pam_setcred,AC_DEFINE(HAVE_PAM_SETCRED))
	AC_CHECK_HEADER(security/pam_appl.h)
	if test x$ac_cv_header_security_pam_appl_h != xyes; then
		AC_CHECK_HEADER(pam/pam_appl.h,
			AC_DEFINE(HAVE_PAM_PAM_APPL_H))
	fi

	if test x$ac_cv_lib_pam_pam_start != xno; then
		# Set the necessary libraries for PAM...
		if test x$ac_cv_lib_dl_dlopen != xno; then
			PAMLIBS="-lpam -ldl"
		else
			PAMLIBS="-lpam"
		fi

		# Find the PAM configuration directory, if any...
		for dir in /private/etc/pam.d /etc/pam.d; do
			if test -d $dir; then
				PAMDIR=$dir
				break;
			fi
		done
	fi

	LIBS="$SAVELIBS"

	case "$uname" in
		Darwin*)
			# Darwin/OS X
			if test "x$with_pam_module" != x; then
				PAMFILE="pam.$with_pam_module"
			elif test -f /usr/lib/pam/pam_opendirectory.so.2; then
				PAMFILE="pam.opendirectory"
			else
				PAMFILE="pam.securityserver"
			fi
			;;

		*)
			# All others; this test might need to be updated
			# as Linux distributors move things around...
			if test "x$with_pam_module" != x; then
				PAMMOD="pam_${with_pam_module}.so"
			elif test -f /lib/security/pam_unix2.so; then
				PAMMOD="pam_unix2.so"
			elif test -f /lib/security/pam_unix.so; then
				PAMMOD="pam_unix.so"
			fi

			if test "x$PAMMOD" = xpam_unix.so; then
				PAMMODAUTH="$PAMMOD shadow nodelay"
			else
				PAMMODAUTH="$PAMMOD nodelay"
			fi
			;;
	esac
fi

AC_SUBST(PAMDIR)
AC_SUBST(PAMFILE)
AC_SUBST(PAMLIBS)
AC_SUBST(PAMMOD)
AC_SUBST(PAMMODAUTH)

dnl
dnl End of "$Id: cups-pam.m4 11342 2013-10-18 20:36:01Z msweet $".
dnl
