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-dnl $Id$
-
-dnl Copyright 1996 by the Massachusetts Institute of Technology.
-dnl
-dnl Permission to use, copy, modify, and distribute this
-dnl software and its documentation for any purpose and without
-dnl fee is hereby granted, provided that the above copyright
-dnl notice appear in all copies and that both that copyright
-dnl notice and this permission notice appear in supporting
-dnl documentation, and that the name of M.I.T. not be used in
-dnl advertising or publicity pertaining to distribution of the
-dnl software without specific, written prior permission.
-dnl M.I.T. makes no representations about the suitability of
-dnl this software for any purpose.  It is provided "as is"
-dnl without express or implied warranty.
-
-dnl This file provides local macros for packages which use specific
-dnl external libraries.  The public macros are:
-dnl
-dnl	ATHENA_UTIL_COM_ERR
-dnl		Generates error if com_err not found.
-dnl	ATHENA_UTIL_SS
-dnl		Generates error if ss not found.
-dnl	ATHENA_REGEXP
-dnl		Sets REGEX_LIBS if rx library used; ensures POSIX
-dnl		regexp support.
-dnl	ATHENA_MOTIF
-dnl		Sets MOTIF_LIBS and defines HAVE_MOTIF if Motif used.
-dnl	ATHENA_MOTIF_REQUIRED
-dnl		Generates error if Motif not found.
-dnl	ATHENA_AFS
-dnl		Sets AFS_LIBS and defines HAVE_AFS if AFS used.  Pass
-dnl		in an argument giving the desired AFS libraries;
-dnl		AFS_LIBS will be set to that value if AFS is found.
-dnl		AFS_DIR will be set to the prefix given.
-dnl	ATHENA_AFS_REQUIRED
-dnl		Generates error if AFS libraries not found.  AFS_DIR
-dnl		will be set to the prefix given.
-dnl	ATHENA_KRB4
-dnl		Sets KRB4_LIBS and defines HAVE_KRB4 if krb4 used.
-dnl	ATHENA_KRB4_REQUIRED
-dnl		Generates error if krb4 not found.  Sets KRB4_LIBS
-dnl		otherwise.  (Special behavior because krb4 libraries
-dnl		may be different if using krb4 compatibility libraries
-dnl		from krb5.)
-dnl	ATHENA_KRB5
-dnl		Sets KRB5_LIBS and defines HAVE_KRB5 if krb5 used.
-dnl	ATHENA_KRB5_REQUIRED
-dnl		Generates error if krb5 not found.
-dnl	ATHENA_HESIOD
-dnl		Sets HESIOD_LIBS and defines HAVE_HESIOD if Hesiod
-dnl		used.
-dnl	ATHENA_HESIOD_REQUIRED
-dnl		Generates error if Hesiod not found.
-dnl	ATHENA_ARES
-dnl		Sets ARES_LIBS and defines HAVE_ARES if libares
-dnl		used.
-dnl	ATHENA_ARES_REQUIRED
-dnl		Generates error if libares not found.
-dnl
-dnl All of the macros may extend CPPFLAGS and LDFLAGS to let the
-dnl compiler find the requested libraries.  Put ATHENA_UTIL_COM_ERR
-dnl and ATHENA_UTIL_SS before ATHENA_AFS or ATHENA_AFS_REQUIRED; there
-dnl is a com_err library in the AFS libraries which requires -lutil.
-
-dnl ----- com_err -----
-
-AC_DEFUN(ATHENA_UTIL_COM_ERR,
-[AC_ARG_WITH(com_err,
-	[  --with-com_err=PREFIX   Specify location of com_err],
-	[com_err="$withval"], [com_err=yes])
-if test "$com_err" != no; then
-	if test "$com_err" != yes; then
-		CPPFLAGS="$CPPFLAGS -I$com_err/include"
-		LDFLAGS="$LDFLAGS -L$com_err/lib"
-	fi
-	AC_CHECK_LIB(com_err, com_err, :,
-		     [AC_MSG_ERROR(com_err library not found)])
-else
-	AC_MSG_ERROR(This package requires com_err.)
-fi])
-
-dnl ----- ss -----
-
-AC_DEFUN(ATHENA_UTIL_SS,
-[AC_ARG_WITH(ss,
-	[  --with-ss=PREFIX        Specify location of ss (requires com_err)],
-	[ss="$withval"], [ss=yes])
-if test "$ss" != no; then
-	if test "$ss" != yes; then
-		CPPFLAGS="$CPPFLAGS -I$ss/include"
-		LDFLAGS="$LDFLAGS -L$ss/lib"
-	fi
-	AC_CHECK_LIB(ss, ss_perror, :,
-		     [AC_MSG_ERROR(ss library not found)], -lcom_err)
-else
-	AC_MSG_ERROR(This package requires ss.)
-fi])
-
-dnl ----- Regular expressions -----
-
-AC_DEFUN(ATHENA_REGEXP,
-[AC_ARG_WITH(regex,
-	[  --with-regex=PREFIX     Use installed regex library],
-	[regex="$withval"], [regex=no])
-if test "$regex" != no; then
-	if test "$regex" != yes; then
-		CPPFLAGS="$CPPFLAGS -I$regex/include"
-		LDFLAGS="$LDFLAGS -L$regex/lib"
-	fi
-	AC_CHECK_LIB(regex, regcomp, REGEX_LIBS=-lregex,
-		     [AC_MSG_ERROR(regex library not found)])
-else
-	AC_CHECK_FUNC(regcomp, :,
-		      [AC_MSG_ERROR(can't find POSIX regexp support)])
-fi
-AC_SUBST(REGEX_LIBS)])
-
-dnl ----- Motif -----
-
-AC_DEFUN(ATHENA_MOTIF_CHECK,
-[if test "$motif" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$motif/include"
-	LDFLAGS="$LDFLAGS -L$motif/lib"
-fi
-AC_CHECK_LIB(Xm, XmStringFree, :, [AC_MSG_ERROR(Motif library not found)])])
-
-AC_DEFUN(ATHENA_MOTIF,
-[AC_ARG_WITH(motif,
-	[  --with-motif=PREFIX     Use Motif],
-	[motif="$withval"], [motif=no])
-if test "$motif" != no; then
-	ATHENA_MOTIF_CHECK
-	MOTIF_LIBS=-lXm
-	AC_DEFINE(HAVE_MOTIF)
-fi
-AC_SUBST(MOTIF_LIBS)])
-
-AC_DEFUN(ATHENA_MOTIF_REQUIRED,
-[AC_ARG_WITH(motif,
-	[  --with-motif=PREFIX     Specify location of Motif],
-	[motif="$withval"], [motif=yes])
-if test "$motif" != no; then
-	ATHENA_MOTIF_CHECK
-else
-	AC_MSG_ERROR(This package requires Motif.)
-fi])
-
-dnl ----- AFS -----
-
-AC_DEFUN(ATHENA_AFS_CHECK,
-[AC_CHECK_FUNC(insque, :, AC_CHECK_LIB(compat, insque))
-AC_CHECK_FUNC(sigvec, :,
-	      AC_CHECK_LIB(ucb, sigvec,
-			   LIBS="$LIBS -L/usr/ucblib -R/usr/ucblib -lc -lucb",
-			   :, -L/usr/ucblib))
-AC_CHECK_FUNC(gethostbyname, :, AC_CHECK_LIB(nsl, gethostbyname))
-AC_CHECK_FUNC(socket, :, AC_CHECK_LIB(socket, socket))
-if test "$afs" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$afs/include"
-	LDFLAGS="$LDFLAGS -L$afs/lib -L$afs/lib/afs"
-fi
-AC_CHECK_LIB(sys, pioctl, :, [AC_MSG_ERROR(AFS libraries not found)],
-	     -lrx -llwp -lsys)
-AFS_DIR=$afs
-AC_SUBST(AFS_DIR)])
-
-dnl Specify desired AFS libraries as a parameter.
-AC_DEFUN(ATHENA_AFS,
-[AC_ARG_WITH(afs,
-	[  --with-afs=PREFIX       Use AFS libraries],
-	[afs="$withval"], [afs=no])
-if test "$afs" != no; then
-	ATHENA_AFS_CHECK
-	AFS_LIBS=$1
-	AC_DEFINE(HAVE_AFS)
-fi
-AC_SUBST(AFS_LIBS)])
-
-AC_DEFUN(ATHENA_AFS_REQUIRED,
-[AC_ARG_WITH(afs,
-	[  --with-afs=PREFIX       Specify location of AFS libraries],
-	[afs="$withval"], [afs=/usr/afsws])
-if test "$afs" != no; then
-	ATHENA_AFS_CHECK
-else
-	AC_MSG_ERROR(This package requires AFS libraries.)
-fi])
-
-dnl ----- Kerberos 4 -----
-
-AC_DEFUN(ATHENA_KRB4_CHECK,
-[AC_CHECK_FUNC(gethostbyname, :, AC_CHECK_LIB(nsl, gethostbyname))
-AC_CHECK_FUNC(socket, :, AC_CHECK_LIB(socket, socket))
-AC_CHECK_LIB(gen, compile)
-if test "$krb4" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$krb4/include"
-	if test -d "$krb4/include/kerberosIV"; then
-		CPPFLAGS="$CPPFLAGS -I$krb4/include/kerberosIV"
-	fi
-	LDFLAGS="$LDFLAGS -L$krb4/lib"
-elif test -d /usr/include/kerberosIV; then
-	CPPFLAGS="$CPPFLAGS -I/usr/include/kerberosIV"
-fi
-AC_CHECK_LIB(krb4, krb_rd_req,
-	     [KRB4_LIBS="-lkrb4 -ldes425 -lkrb5 -lcrypto -lcom_err"],
-	     [AC_CHECK_LIB(krb, krb_rd_req,
-			   [KRB4_LIBS="-lkrb -ldes"],
-			   [AC_MSG_ERROR(Kerberos 4 libraries not found)],
-			   -ldes)],
-	     -ldes425 -lkrb5 -lcrypto -lcom_err)])
-
-AC_DEFUN(ATHENA_KRB4,
-[AC_ARG_WITH(krb4,
-	[  --with-krb4=PREFIX      Use Kerberos 4],
-	[krb4="$withval"], [krb4=no])
-if test "$krb4" != no; then
-	ATHENA_KRB4_CHECK
-	AC_DEFINE(HAVE_KRB4)
-fi
-AC_SUBST(KRB4_LIBS)])
-
-AC_DEFUN(ATHENA_KRB4_REQUIRED,
-[AC_ARG_WITH(krb4,
-	[  --with-krb4=PREFIX      Specify location of Kerberos 4],
-	[krb4="$withval"], [krb4=yes])
-if test "$afs" != no; then
-	ATHENA_KRB4_CHECK
-	AC_SUBST(KRB4_LIBS)
-else
-	AC_MSG_ERROR(This package requires Kerberos 4.)
-fi])
-
-dnl ----- Kerberos 5 -----
-
-AC_DEFUN(ATHENA_KRB5_CHECK,
-[AC_CHECK_FUNC(gethostbyname, :, AC_CHECK_LIB(nsl, gethostbyname))
-AC_CHECK_FUNC(socket, :, AC_CHECK_LIB(socket, socket))
-AC_CHECK_LIB(gen, compile)
-if test "$krb5" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$krb5/include"
-	LDFLAGS="$LDFLAGS -L$krb5/lib"
-fi
-AC_CHECK_LIB(krb5, krb5_init_context, :,
-	     [AC_MSG_ERROR(Kerberos 5 libraries not found)],
-	     -lcrypto -lcom_err)])
-
-AC_DEFUN(ATHENA_KRB5,
-[AC_ARG_WITH(krb5,
-	[  --with-krb5=PREFIX      Use Kerberos 5],
-	[krb5="$withval"], [krb5=no])
-if test "$krb5" != no; then
-	ATHENA_KRB5_CHECK
-	KRB5_LIBS="-lkrb5 -lcrypto -lcom_err"
-	AC_DEFINE(HAVE_KRB5)
-fi
-AC_SUBST(KRB5_LIBS)])
-
-AC_DEFUN(ATHENA_KRB5_REQUIRED,
-[AC_ARG_WITH(krb5,
-	[  --with-krb5=PREFIX      Specify location of Kerberos 5],
-	[krb5="$withval"], [krb5=yes])
-if test "$krb5" != no; then
-	ATHENA_KRB5_CHECK
-else
-	AC_MSG_ERROR(This package requires Kerberos 5.)
-fi])
-
-dnl ----- Hesiod -----
-
-AC_DEFUN(ATHENA_HESIOD_CHECK,
-[AC_CHECK_FUNC(res_send, :, AC_CHECK_LIB(resolv, res_send))
-if test "$hesiod" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$hesiod/include"
-	LDFLAGS="$LDFLAGS -L$hesiod/lib"
-fi
-AC_CHECK_LIB(hesiod, hes_resolve, :,
-	     [AC_MSG_ERROR(Hesiod library not found)])])
-
-AC_DEFUN(ATHENA_HESIOD,
-[AC_ARG_WITH(hesiod,
-	[  --with-hesiod=PREFIX    Use Hesiod],
-	[hesiod="$withval"], [hesiod=no])
-if test "$hesiod" != no; then
-	ATHENA_HESIOD_CHECK
-	HESIOD_LIBS="-lhesiod"
-	AC_DEFINE(HAVE_HESIOD)
-fi
-AC_SUBST(HESIOD_LIBS)])
-
-AC_DEFUN(ATHENA_HESIOD_REQUIRED,
-[AC_ARG_WITH(hesiod,
-	[  --with-hesiod=PREFIX    Specify location of Hesiod],
-	[hesiod="$withval"], [hesiod=yes])
-if test "$hesiod" != no; then
-	ATHENA_HESIOD_CHECK
-else
-	AC_MSG_ERROR(This package requires Hesiod.)
-fi])
-
-dnl ----- libares -----
-
-AC_DEFUN(ATHENA_ARES_CHECK,
-[AC_CHECK_FUNC(res_send, :, AC_CHECK_LIB(resolv, res_send))
-if test "$ares" != yes; then
-	CPPFLAGS="$CPPFLAGS -I$ares/include"
-	LDFLAGS="$LDFLAGS -L$ares/lib"
-fi
-AC_CHECK_LIB(ares, ares_init, :, [AC_MSG_ERROR(libares not found)])])
-
-AC_DEFUN(ATHENA_ARES,
-[AC_ARG_WITH(ares,
-	[  --with-ares=PREFIX      Use libares],
-	[ares="$withval"], [ares=no])
-if test "$ares" != no; then
-	ATHENA_ARES_CHECK
-	ARES_LIBS="-lares"
-	AC_DEFINE(HAVE_ARES)
-fi
-AC_SUBST(ARES_LIBS)])
-
-AC_DEFUN(ATHENA_ARES_REQUIRED,
-[AC_ARG_WITH(ares,
-	[  --with-ares=PREFIX      Specify location of libares],
-	[ares="$withval"], [ares=yes])
-if test "$ares" != no; then
-	ATHENA_ARES_CHECK
-else
-	AC_MSG_ERROR(This package requires libares.)
-fi])