# This file is part of GNU Pies.  -*- autoconf -*-
# Copyright (C) 2009-2016 Sergey Poznyakoff
#
# GNU Pies is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Pies is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Pies.  If not, see <http://www.gnu.org/licenses/>.

AC_PREREQ([2.63])
AC_INIT([GNU Pies], [1.2.92], [bug-pies@gnu.org.ua])
AC_CONFIG_SRCDIR([src/pies.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 std-options silent-rules])

# Enable silent rules by default:
AM_SILENT_RULES([yes])

# Checks for programs.
AC_PROG_CC
gl_EARLY
AC_PROG_MAKE_SET
AC_PROG_RANLIB
AC_PROG_YACC
AC_PROG_LEX

# Checks for libraries.
AC_CHECK_LIB(crypt, crypt)

# Checks for header files.
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdint.h stdlib.h\
 string.h sys/socket.h sys/time.h syslog.h unistd.h utmp.h utmpx.h\
 crypt.h shadow.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_SIGNAL

IU_CHECK_MEMBERS([struct msghdr.msg_control, struct msghdr.msg_accrights], , ,
                 [#include <sys/types.h>
	          #include <sys/socket.h>])

IU_CHECK_MEMBERS([struct utmp.ut_tv, struct utmp.ut_name,
                  struct utmp.ut_user, struct utmp.ut_time,
		  struct utmp.ut_host], , ,
		  [#include <utmp.h>])
		    
if test "$ac_cv_header_utmpx_h" = yes; then		  
  IU_CHECK_MEMBERS([struct utmpx.ut_tv, struct utmpx.ut_name,
                    struct utmpx.ut_user, struct utmpx.ut_time,
		    struct utmpx.ut_host], , ,
		    [#include <utmpx.h>])
fi
		  
# Checks for library functions.
AC_FUNC_CHOWN
AC_FUNC_FORK
AC_CHECK_FUNCS([alarm dup2 gethostbyname memmove memset select setenv socket strchr strcspn strtol strtoul sysconf getdtablesize vsyslog])

# Gnulib
gl_INIT

# Grecs
GRECS_SETUP([grecs],[tests git2chg getopt json sockaddr-list parser-meta1])
GRECS_HOST_PROJECT_INCLUDES='-I$(top_srcdir)/gnu -I$(top_builddir)/gnu'

# Test for setproctitle
MF_PROCTITLE

# Gettext.
AM_ICONV
AM_GNU_GETTEXT([external], [need-formatstring-macros])
AM_GNU_GETTEXT_VERSION([0.19])

# PAM
status_pam=maybe
AC_ARG_ENABLE([pam],
              AC_HELP_STRING([--enable-pam],
                             [enable PAM]),
              [
case "${enableval}" in
  yes) status_pam=yes ;;
  no)  status_pam=no ;;
  *)   AC_MSG_ERROR([bad value ${enableval} for --enable-pam]) ;;
esac],[status_pam=maybe])

AC_SUBST(PAM_LIBS)
if test "$status_pam" != "no"; then
  AC_CHECK_HEADERS(security/pam_appl.h)
  if test "$ac_cv_header_security_pam_appl_h" = "yes"; then
    AC_CHECK_LIB(dl, dlopen, [PAM_LIBS="-ldl"])
    AC_CHECK_LIB(pam, pam_start,
	         [status_pam=yes
		  PAM_LIBS="-lpam $PAM_LIBS"],
	         [status_pam=no], $PAM_LIBS)
  else
    status_pam=no
  fi
fi

AM_CONDITIONAL([PAM_COND], [test $status_pam = yes])
if test $status_pam = yes; then
    AC_DEFINE_UNQUOTED(WITH_PAM, 1, [PAM support enabled])
fi    

# Build inetd
AC_ARG_ENABLE([inetd],
              AC_HELP_STRING([--enable-inetd],
	                     [build and install a replacement for SBINDIR/inetd]),
	      [case $enableval in
	       yes) AC_SUBST([INETD], [inetd]);;
	       no)  ;;
	       esac])

AH_BOTTOM([
# ifndef ATTRIBUTE_NORETURN
#  define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
# endif
])

AC_SUBST([DEFAULT_PIES_CONTROL_URL],['unix:///tmp/$${PIES_INSTANCE}.ctl'])
AC_ARG_VAR([DEFAULT_PIES_CONTROL_URL],
           [URL of the default control socket])
AC_SUBST([DEFAULT_INIT_CONTROL_URL],['unix:///dev/init.ctl'])
AC_ARG_VAR([DEFAULT_INIT_CONTROL_URL],
           [URL of the default control socket])

IMPRIMATUR_INIT

AC_CONFIG_FILES([Makefile
                 gnu/Makefile
                 lib/Makefile
                 src/Makefile
		 ident/Makefile
                 doc/Makefile
		 po/Makefile.in])
AC_OUTPUT