dnl
dnl File:        configure.in
dnl Revision:    $Id: configure.ac,v 1.4 2010/06/11 12:04:29 j-nijhof Exp $
dnl Created:     2010/06/09
dnl Author:      Jeroen Nijhof <jeroen@jeroennijhof.nl>
dnl              Benoit Donneaux <benoit.donneaux@gmail.com>
dnl
dnl Process this file with autoconf to produce a configure script
dnl You need autoconf 2.59 or better!
dnl
dnl ---------------------------------------------------------------------------

AC_PREREQ(2.59)
AC_COPYRIGHT([
See the included file: COPYING for copyright information.
])
AC_INIT(pam_tacplus, 1.3.9, [jeroen@jeroennijhof.nl,pawel.krawczyk@hush.com])

AC_CONFIG_AUX_DIR(config)
AM_INIT_AUTOMAKE([foreign])
AC_CONFIG_SRCDIR([pam_tacplus.c])
AC_CONFIG_HEADER([config.h])
AC_CONFIG_MACRO_DIR([config])

dnl --------------------------------------------------------------------
dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AM_PROG_LIBTOOL
AM_PROG_CC_C_O

dnl --------------------------------------------------------------------
dnl Checks for libraries.
AC_CHECK_LIB(pam, pam_start)
AC_CHECK_LIB(tac, tac_connect)

case "$host" in
	sparc-* | sparc64-*)
		LIBS="$LIBS -lresolv";;
esac

dnl --------------------------------------------------------------------
dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdlib.h string.h strings.h sys/socket.h sys/time.h syslog.h unistd.h])
AC_CHECK_HEADER(security/pam_appl.h, [], [AC_MSG_ERROR([PAM libraries missing. Install with "yum install pam-devel" or "apt-get install libpam-dev".])] )

dnl --------------------------------------------------------------------
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_HEADER_TIME

for flag in -fstack-protector-all -Wl,-z,relro -Wl,-z,now -fPIE -pie -D_FORTIFY_SOURCE=2; do
	my_save_cflags="$CFLAGS"
	CFLAGS=$flag
	AC_MSG_CHECKING([whether CC supports $flag])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
	    [AC_MSG_RESULT([yes])]
	    [AM_CFLAGS="$AM_CFLAGS $flag"]
	    [AM_LDFLAGS="$AM_LDFLAGS $flag"],
	    [AC_MSG_RESULT([no])]
	)
	CFLAGS="$my_save_cflags"
	AC_SUBST([AM_CFLAGS])
	AC_SUBST([AM_LDFLAGS])
done

dnl --------------------------------------------------------------------
dnl Checks for library functions.
AC_FUNC_REALLOC
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([bzero gethostbyname gettimeofday inet_ntoa select socket])

dnl --------------------------------------------------------------------
dnl Switch for pam module dir
AC_ARG_ENABLE([pamdir], [AS_HELP_STRING([--enable-pamdir],
              [Location to install the pam module ($libdir/security)])],
              [pamdir=$enableval], [pamdir=$libdir/security])
AC_SUBST(pamdir)


dnl --------------------------------------------------------------------
dnl Generate made files
AC_CONFIG_FILES([Makefile
		 libtac.pc
                 pam_tacplus.spec])
AC_OUTPUT