Forwarded: https://github.com/cyrusimap/cyrus-sasl/issues/338
From: Debian Cyrus SASL Team
 <pkg-cyrus-sasl2-debian-devel@lists.alioth.debian.org>
Date: Thu, 24 Mar 2016 11:35:05 +0100
Subject: Fix keytab option for MIT Kerberos

---
 m4/sasl2.m4      |  1 +
 plugins/gssapi.c | 11 ++++++++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/m4/sasl2.m4 b/m4/sasl2.m4
index 56e0504..a90f7b4 100644
--- a/m4/sasl2.m4
+++ b/m4/sasl2.m4
@@ -282,6 +282,7 @@ if test "$gssapi" != no; then
                     ])
     fi
   fi
+  AC_CHECK_FUNCS(krb5_gss_register_acceptor_identity)
   AC_CHECK_FUNCS(gss_decapsulate_token)
   AC_CHECK_FUNCS(gss_encapsulate_token)
   AC_CHECK_FUNCS(gss_oid_equal)
diff --git a/plugins/gssapi.c b/plugins/gssapi.c
index ff663da..7c69ac2 100644
--- a/plugins/gssapi.c
+++ b/plugins/gssapi.c
@@ -1545,7 +1545,7 @@ static sasl_server_plug_t gssapi_server_plugins[] =
 };
 
 int gssapiv2_server_plug_init(
-#ifndef HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY
+#if !defined(HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY) && !defined(HAVE_KRB5_GSS_REGISTER_ACCEPTOR_IDENTITY)
     const sasl_utils_t *utils __attribute__((unused)),
 #else
     const sasl_utils_t *utils,
@@ -1555,7 +1555,7 @@ int gssapiv2_server_plug_init(
     sasl_server_plug_t **pluglist,
     int *plugcount)
 {
-#ifdef HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY
+#if defined(HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY) || defined(HAVE_KRB5_GSS_REGISTER_ACCEPTOR_IDENTITY)
     const char *keytab = NULL;
     char keytab_path[1024];
     unsigned int rl;
@@ -1565,7 +1565,7 @@ int gssapiv2_server_plug_init(
 	return SASL_BADVERS;
     }
     
-#ifdef HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY
+#if defined(HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY) || defined(HAVE_KRB5_GSS_REGISTER_ACCEPTOR_IDENTITY)
     /* unfortunately, we don't check for readability of keytab if it's
        the standard one, since we don't know where it is */
     
@@ -1587,7 +1587,12 @@ int gssapiv2_server_plug_init(
 	
 	strncpy(keytab_path, keytab, 1024);
 	
+#ifdef HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY
 	gsskrb5_register_acceptor_identity(keytab_path);
+#endif
+#ifdef HAVE_KRB5_GSS_REGISTER_ACCEPTOR_IDENTITY
+	krb5_gss_register_acceptor_identity(keytab_path);
+#endif
     }
 #endif