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234 lines
8.2 KiB
Plaintext
234 lines
8.2 KiB
Plaintext
/* This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details. */
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AC_DEFUN(ACX_WITH_GSSAPI,[
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#
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# Use --with-gssapi[=DIR] to enable GSSAPI support.
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#
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# defaults to enabled with DIR in default list below
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#
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# Search for /SUNHEA/ and read the comments about this default below.
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#
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AC_ARG_WITH([gssapi],
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[ --with-gssapi=value GSSAPI directory],
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[acx_gssapi_withgssapi=$withval], [acx_gssapi_withgssapi=yes])dnl
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dnl
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dnl FIXME - cache withval and obliterate later cache values when options change
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dnl
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#
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# Try to locate a GSSAPI installation if no location was specified, assuming
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# GSSAPI was enabled (the default).
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#
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if test -n "$acx_gssapi_cv_gssapi"; then
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# Granted, this is a slightly ugly way to print this info, but the
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# AC_CHECK_HEADER used in the search for a GSSAPI installation makes using
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# AC_CACHE_CHECK worse
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AC_MSG_CHECKING([for GSSAPI])
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else :; fi
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AC_CACHE_VAL([acx_gssapi_cv_gssapi], [
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if test x$acx_gssapi_withgssapi = xyes; then
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# --with but no location specified
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# assume a gssapi.h or gssapi/gssapi.h locates our install.
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#
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# This isn't always strictly true. For instance Solaris 7's SUNHEA (header)
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# package installs gssapi.h whether or not the necessary libraries are
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# installed. I'm still not sure whether to consider this a bug. The long
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# way around is to not consider GSSPAI installed unless gss_import_name is
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# found, but that brings up a lot of other hassles, like continuing to let
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# gcc & ld generate the error messages when the user uses --with-gssapi=dir
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# as a debugging aid. The short way around is to disable GSSAPI by default,
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# but I think Sun users have been faced with this for awhile and I haven't
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# heard many complaints.
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acx_gssapi_save_CPPFLAGS=$CPPFLAGS
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for acx_gssapi_cv_gssapi in yes /usr/kerberos /usr/cygnus/kerbnet no; do
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if test x$acx_gssapi_cv_gssapi = xno; then
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break
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fi
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if test x$acx_gssapi_cv_gssapi = xyes; then
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AC_CHECKING([for GSSAPI])
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else
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CPPFLAGS="$acx_gssapi_save_CPPFLAGS -I$acx_gssapi_cv_gssapi/include"
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AC_CHECKING([for GSSAPI in $acx_gssapi_cv_gssapi])
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fi
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unset ac_cv_header_gssapi_h
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unset ac_cv_header_gssapi_gssapi_h
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unset ac_cv_header_krb5_h
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AC_CHECK_HEADERS([gssapi.h gssapi/gssapi.h krb5.h])
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if (test "$ac_cv_header_gssapi_h" = yes ||
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test "$ac_cv_header_gssapi_gssapi_h" = yes) &&
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test "$ac_cv_header_krb5_h" = yes; then
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break
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fi
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done
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CPPFLAGS=$acx_gssapi_save_CPPFLAGS
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else
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acx_gssapi_cv_gssapi=$acx_gssapi_withgssapi
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fi
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AC_MSG_CHECKING([for GSSAPI])
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])dnl
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AC_MSG_RESULT([$acx_gssapi_cv_gssapi])
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#
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# Set up GSSAPI includes for later use. We don't bother to check for
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# $acx_gssapi_cv_gssapi=no here since that will be caught later.
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#
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if test x$acx_gssapi_cv_gssapi = yes; then
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# no special includes necessary
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GSSAPI_INCLUDES=""
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else
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# GSSAPI at $acx_gssapi_cv_gssapi (could be 'no')
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GSSAPI_INCLUDES=" -I$acx_gssapi_cv_gssapi/include"
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fi
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#
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# Get the rest of the information CVS needs to compile with GSSAPI support
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#
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if test x$acx_gssapi_cv_gssapi != xno; then
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# define HAVE_GSSAPI and set up the includes
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AC_DEFINE([HAVE_GSSAPI],, [Define if you have GSSAPI with Kerberos version 5 available.])
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includeopt=$includeopt$GSSAPI_INCLUDES
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# locate any other headers
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acx_gssapi_save_CPPFLAGS=$CPPFLAGS
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CPPFLAGS=$CPPFLAGS$GSSAPI_INCLUDES
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dnl We don't use HAVE_KRB5_H anywhere, but including it here might make it
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dnl easier to spot errors by reading configure output
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AC_CHECK_HEADERS([gssapi.h gssapi/gssapi.h gssapi/gssapi_generic.h krb5.h])
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# And look through them for GSS_C_NT_HOSTBASED_SERVICE or its alternatives
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AC_CACHE_CHECK([for GSS_C_NT_HOSTBASED_SERVICE], [acx_gssapi_cv_gss_c_nt_hostbased_service],
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[acx_gssapi_cv_gss_c_nt_hostbased_service=no
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if test "$ac_cv_header_gssapi_h" = "yes"; then
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AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service=yes],
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AC_EGREP_HEADER([gss_nt_service_name], [gssapi.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
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fi
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if test $acx_gssapi_cv_gss_c_nt_hostbased_service = no &&
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test "$ac_cv_header_gssapi_gssapi_h" = "yes"; then
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AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi/gssapi.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service],
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AC_EGREP_HEADER([gss_nt_service_name], [gssapi/gssapi.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
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fi
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if test $acx_gssapi_cv_gss_c_nt_hostbased_service = no &&
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test "$ac_cv_header_gssapi_gssapi_generic_h" = "yes"; then
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AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi/gssapi_generic.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service],
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AC_EGREP_HEADER([gss_nt_service_name], [gssapi/gssapi_generic.h],
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[acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
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fi])
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if test $acx_gssapi_cv_gss_c_nt_hostbased_service != yes &&
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test $acx_gssapi_cv_gss_c_nt_hostbased_service != no; then
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# don't define for yes since that means it already means something and
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# don't define for no since we'd rather the compiler catch the error
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AC_DEFINE_UNQUOTED([GSS_C_NT_HOSTBASED_SERVICE], [$acx_gssapi_cv_gss_c_nt_hostbased_service],
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[Define to an alternative value if GSS_C_NT_HOSTBASED_SERVICE isn't defined
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in the gssapi.h header file. MIT Kerberos 1.2.1 requires this. Only relevant
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when using GSSAPI.])
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fi
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CPPFLAGS=$acx_gssapi_save_CPPFLAGS
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# Expect the libs to be installed parallel to the headers
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#
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# We could try once with and once without, but I'm not sure it's worth the
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# trouble.
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if test x$acx_gssapi_cv_gssapi != xyes; then
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if test -z "$LIBS"; then
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LIBS="-L$acx_gssapi_cv_gssapi/lib"
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else
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LIBS="-L$acx_gssapi_cv_gssapi/lib $LIBS"
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fi
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else :; fi
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dnl What happens if we want to enable, say, krb5 and some other GSSAPI
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dnl authentication method at the same time?
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#
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# Some of the order below is particular due to library dependencies
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#
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#
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# des Heimdal K 0.3d, but Heimdal seems to be set up such
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# that it could have been installed from elsewhere.
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#
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AC_SEARCH_LIBS([des_set_odd_parity], [des])
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#
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# com_err Heimdal K 0.3d
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#
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# com_err MIT K5 v1.2.2-beta1
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#
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AC_SEARCH_LIBS([com_err], [com_err])
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#
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# asn1 Heimdal K 0.3d -lcom_err
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#
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AC_SEARCH_LIBS([initialize_asn1_error_table_r], [asn1])
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#
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# resolv required, but not installed by Heimdal K 0.3d
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#
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# resolv MIT K5 1.2.2-beta1
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# Linux 2.2.17
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#
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AC_SEARCH_LIBS([__dn_expand], [resolv])
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#
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# roken Heimdal K 0.3d -lresolv
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#
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AC_SEARCH_LIBS([roken_gethostbyaddr], [roken])
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#
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# k5crypto MIT K5 v1.2.2-beta1
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#
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AC_SEARCH_LIBS([valid_enctype], [k5crypto])
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#
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# gen ? ? ? Needed on Irix 5.3 with some
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# Irix 5.3 version of Kerberos. I'm not
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# sure which since Irix didn't
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# get any testing this time
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# around. Original comment:
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#
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# This is necessary on Irix 5.3, in order to link against libkrb5 --
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# there, an_to_ln.o refers to things defined only in -lgen.
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#
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AC_SEARCH_LIBS([compile], [gen])
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#
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# krb5 ? ? ? -lgen -l???
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# Irix 5.3
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#
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# krb5 MIT K5 v1.1.1
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#
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# krb5 MIT K5 v1.2.2-beta1 -lcrypto -lcom_err
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# Linux 2.2.17
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#
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# krb5 MIT K5 v1.2.2-beta1 -lcrypto -lcom_err -lresolv
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#
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# krb5 Heimdal K 0.3d -lasn1 -lroken -ldes
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#
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AC_SEARCH_LIBS([krb5_free_context], [krb5])
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#
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# gssapi_krb5 Only lib needed with MIT K5 v1.2.1, so find it first in
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# order to prefer MIT Kerberos. If both MIT & Heimdal
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# Kerberos are installed and in the path, this will leave
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# some of the libraries above in LIBS unnecessarily, but
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# noone would ever do that, right?
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#
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# gssapi_krb5 MIT K5 v1.2.2-beta1 -lkrb5
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#
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# gssapi Heimdal K 0.3d -lkrb5
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#
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AC_SEARCH_LIBS([gss_import_name], [gssapi_krb5 gssapi])
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fi
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])dnl
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