#serial 10

dnl Misc lib-related macros for coreutils.

# Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2003, 2004,
# 2005, 2006 Free Software Foundation, Inc.

# This program 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 of the License, or
# (at your option) any later version.

# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

# Written by Jim Meyering.

AC_DEFUN([cu_LIB_CHECK],
[

  # Check for libypsec.a on Dolphin M88K machines.
  AC_CHECK_LIB(ypsec, main)

  # m88k running dgux 5.4 needs this
  AC_CHECK_LIB(ldgc, main)

  # The -lsun library is required for YP support on Irix-4.0.5 systems.
  # m88k/svr3 DolphinOS systems using YP need -lypsec for id.
  AC_SEARCH_LIBS(yp_match, [sun ypsec])

  # SysV needs -lsec, older versions of Linux need -lshadow for
  # shadow passwords.  UnixWare 7 needs -lgen.
  AC_SEARCH_LIBS(getspnam, [shadow sec gen])

  AC_CHECK_HEADERS(shadow.h)

  # Requirements for su.c.
  shadow_includes="\
$ac_includes_default
#if HAVE_SHADOW_H
# include <shadow.h>
#endif
"
  AC_CHECK_MEMBERS([struct spwd.sp_pwdp],,,[$shadow_includes])
  AC_CHECK_FUNCS(getspnam)

  # SCO-ODT-3.0 is reported to need -lufc for crypt.
  # NetBSD needs -lcrypt for crypt.
  cu_saved_libs="$LIBS"
  AC_SEARCH_LIBS(crypt, [ufc crypt],
		 [test "$ac_cv_search_crypt" = "none required" ||
		  LIB_CRYPT="$ac_cv_search_crypt"])
  LIBS="$cu_saved_libs"
  AC_SUBST(LIB_CRYPT)
])