AC_INIT(libzvt/libzvt.h)

# Making releases:
#   ZVT_MICRO_VERSION += 1;
#   ZVT_INTERFACE_AGE += 1;
#   ZVT_BINARY_AGE += 1;
# if any functions have been added, set ZVT_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set ZVT_BINARY_AGE _and_ ZVT_INTERFACE_AGE to 0.
#
ZVT_MAJOR_VERSION=2
ZVT_MINOR_VERSION=0
ZVT_MICRO_VERSION=1
ZVT_INTERFACE_AGE=1
ZVT_BINARY_AGE=1
ZVT_VERSION=$ZVT_MAJOR_VERSION.$ZVT_MINOR_VERSION.$ZVT_MICRO_VERSION

AC_SUBST(ZVT_MAJOR_VERSION)
AC_SUBST(ZVT_MINOR_VERSION)
AC_SUBST(ZVT_MICRO_VERSION)
AC_SUBST(ZVT_VERSION)
AC_SUBST(ZVT_INTERFACE_AGE)
AC_SUBST(ZVT_BINARY_AGE)

# libtool versioning
LT_RELEASE=$ZVT_MAJOR_VERSION.$ZVT_MINOR_VERSION
LT_CURRENT=`expr $ZVT_MICRO_VERSION - $ZVT_INTERFACE_AGE`
LT_REVISION=$ZVT_INTERFACE_AGE
LT_AGE=`expr $ZVT_BINARY_AGE - $ZVT_INTERFACE_AGE`
LT_CURRENT_MINUS_AGE=`expr $LT_CURRENT - $LT_AGE`
AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
AC_SUBST(LT_CURRENT_MINUS_AGE)

VERSION=$ZVT_VERSION

AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(libzvt, $VERSION)

AM_MAINTAINER_MODE

AC_ISC_POSIX
AC_PROG_CC
AC_STDC_HEADERS
AM_PROG_LIBTOOL

dnl
dnl zvt checks
dnl
AC_CHECK_HEADERS(sys/select.h sys/time.h sys/un.h paths.h sys/syslimits.h sys/fsuid.h)

dnl
dnl check for -D_SOCKADDR_LEN, which is required on Tru64 UNIX
dnl
AC_MSG_CHECKING([for sa_len in struct sockaddr])
AC_TRY_COMPILE(
    [#include <sys/socket.h>],
    [struct sockaddr s; s.sa_len;],
    [sa_len_ok=yes],
    [sa_len_ok=no])
AC_MSG_RESULT($sa_len_ok)
if test x$sa_len_ok = xno; then
    AC_MSG_CHECKING([for sa_len with -D_SOCKADDR_LEN])
    xCPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS -D_SOCKADDR_LEN"
    AC_TRY_COMPILE(
	[#include <sys/socket.h>],
	[struct sockaddr s; s.sa_len;],
	[AC_DEFINE(_SOCKADDR_LEN)
	 sa_len_ok=yes],
	[sa_len_ok=no])
    CPPFLAGS="$xCPPFLAGS"
fi
AC_MSG_RESULT($sa_len_ok)

dnl
dnl gnome-pty-support checks
dnl

AC_MSG_CHECKING([for Unix98 sendmsg])
AC_TRY_LINK([
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
],[
struct msghdr hdr;
hdr.msg_control = NULL;
hdr.msg_controllen = 0;
sendmsg (0, &hdr, 0);
],[
AC_DEFINE(HAVE_SENDMSG)
AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])

AC_CHECK_UTMP
dnl AC_CHECK_LASTLOG

AC_CHECK_HEADERS(pty.h util.h libutil.h ttyent.h)

AC_CHECK_LIB(util, openpty,
    [
    AC_CHECK_LIB(util, login_tty, [AC_DEFINE(HAVE_LOGIN_TTY)])
    AC_DEFINE(HAVE_OPENPTY)
    AC_DEFINE(HAVE_LIBUTIL)
    UTIL_LIBS="-lutil"
    AC_SUBST(UTIL_LIBS)
    ])

AC_CHECK_FUNCS(grantpt utmpxname utmpname getutmpx getutent getttyent)
AC_CHECK_FUNCS(updwtmpx updwtmp fcntl flock strrchr seteuid setreuid setresuid)

AC_CHECK_HEADERS(stropts.h)

# this seems like a decent way to do this
PTY_HELPER_UID=root
PTY_HELPER_GID=root
case "$host" in
	*-*-darwin*)
	  PTY_HELPER_GID=admin
	  ;;
esac
AC_SUBST(PTY_HELPER_UID)
AC_SUBST(PTY_HELPER_GID)

PKG_CHECK_MODULES(ZVT,
[
	glib-2.0 >= 1.3.11
	gmodule-2.0 >= 1.3.11
	gtk+-2.0 >= 1.3.11
	libart-2.0 >= 2.3.5
])

AC_SUBST(ZVT_LIBS)
AC_SUBST(ZVT_CFLAGS)

if test x$ac_cv_func_grantpt = xyes; then
	:
else
	AC_CHECK_LIB(pt, grantpt)
fi

AC_OUTPUT([
Makefile
libzvt/Makefile
libzvt/libzvt-2.0.pc
])