Warning fixes from Christos Zoulas

- shadowed variables
- signed/unsigned confusion
- const lossage
- incomplete structure initializations
- unused code

lib/gssapi/ntlm/external.c

@@ -38,7 +38,7 @@ static gss_mo_desc ntlm_mo[] = {
 	GSS_C_MA_SASL_MECH_NAME,
 	GSS_MO_MA,
 	"SASL mech name",
-	"NTLM",
+	rk_UNCONST("NTLM"),
 	_gss_mo_get_ctx_as_string,
 	NULL
     },
@@ -46,7 +46,7 @@ static gss_mo_desc ntlm_mo[] = {
 	GSS_C_MA_MECH_NAME,
 	GSS_MO_MA,
 	"Mechanism name",
-	"NTLMSPP",
+	rk_UNCONST("NTLMSPP"),
 	_gss_mo_get_ctx_as_string,
 	NULL
     },
@@ -54,7 +54,7 @@ static gss_mo_desc ntlm_mo[] = {
 	GSS_C_MA_MECH_DESCRIPTION,
 	GSS_MO_MA,
 	"Mechanism description",
-	"Heimdal NTLMSSP Mechanism",
+	rk_UNCONST("Heimdal NTLMSSP Mechanism"),
 	_gss_mo_get_ctx_as_string,
 	NULL
     }
@@ -113,7 +113,13 @@ static gssapi_mech_interface_desc ntlm_mech = {
     NULL,
     NULL,
     ntlm_mo,
-    sizeof(ntlm_mo) / sizeof(ntlm_mo[0])
+    sizeof(ntlm_mo) / sizeof(ntlm_mo[0]),
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
 };
 
 gssapi_mech_interface