tm: no reason modparams if compiled with no cancelr. support

Don't register cancel_reason modparams and script functions if
compiled with -DNO_CANCEL_REASON_SUPPORT.

modules/tm/h_table.h

@@ -284,7 +284,9 @@ struct totag_elem {
 
 #define T_DISABLE_6xx (1<<8) /* treat 6xx as a normal reply */
 #define T_DISABLE_FAILOVER (1<<9) /* don't perform dns failover */
+#ifdef CANCEL_REASON_SUPPORT
 #define T_NO_E2E_CANCEL_REASON (1<<10) /* don't propagate CANCEL Reason */
+#endif /* CANCEL_REASON_SUPPORT */
 #define T_DONT_FORK   (T_CANCELED|T_6xx)
 
 /* unsigned short should be enough for a retr. timer: max. 65535 ticks =>

modules/tm/t_lookup.c

@@ -1265,8 +1265,10 @@ static inline void init_new_t(struct cell *new_cell, struct sip_msg *p_msg)
 					(!cfg_get(tm, tm_cfg, tm_auto_inv_100) -1);
 		new_cell->flags|=T_DISABLE_6xx &
 					(!cfg_get(tm, tm_cfg, disable_6xx) -1);
+#ifdef CANCEL_REASON_SUPPORT
 		new_cell->flags|=T_NO_E2E_CANCEL_REASON &
 					(!!cfg_get(tm, tm_cfg, e2e_cancel_reason) -1);
+#endif /* CANCEL_REASON_SUPPORT */
 		/* reset flags */
 		new_cell->flags &=
 			(~ get_msgid_val(user_cell_reset_flags, p_msg->id, int));

modules/tm/tm.c

@@ -284,8 +284,10 @@ static int w_t_reset_max_lifetime(struct sip_msg* msg, char* foo, char* bar);
 static int t_set_auto_inv_100(struct sip_msg* msg, char* on_off, char* foo);
 static int t_set_disable_6xx(struct sip_msg* msg, char* on_off, char* foo);
 static int t_set_disable_failover(struct sip_msg* msg, char* on_off, char* f);
+#ifdef CANCEL_REASON_SUPPORT
 static int t_set_no_e2e_cancel_reason(struct sip_msg* msg, char* on_off,
 										char* f);
+#endif /* CANCEL_REASON_SUPPORT */
 static int t_branch_timeout(struct sip_msg* msg, char*, char*);
 static int t_branch_replied(struct sip_msg* msg, char*, char*);
 static int t_any_timeout(struct sip_msg* msg, char*, char*);
@@ -431,6 +433,7 @@ static cmd_export_t cmds[]={
 			REQUEST_ROUTE|TM_ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE },
 	{"t_set_disable_failover", t_set_disable_failover, 1, fixup_var_int_1,
 			REQUEST_ROUTE|TM_ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE },
+#ifdef CANCEL_REASON_SUPPORT
 	{"t_set_no_e2e_cancel_reason", t_set_no_e2e_cancel_reason, 1,
 		fixup_var_int_1,
 			REQUEST_ROUTE|TM_ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE },
@@ -438,6 +441,7 @@ static cmd_export_t cmds[]={
 	{"t_disable_e2e_cancel_reason", t_set_no_e2e_cancel_reason, 1,
 		fixup_var_int_1,
 			REQUEST_ROUTE|TM_ONREPLY_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE },
+#endif /* CANCEL_REASON_SUPPORT */
 	{"t_branch_timeout",  t_branch_timeout,         0, 0,  FAILURE_ROUTE},
 	{"t_branch_replied",  t_branch_replied,         0, 0,  FAILURE_ROUTE},
 	{"t_any_timeout",     t_any_timeout,            0, 0, 
@@ -545,8 +549,10 @@ static param_export_t params[]={
 	{"contacts_avp",        PARAM_STRING, &contacts_avp_param                },
 	{"disable_6xx_block",   PARAM_INT, &default_tm_cfg.disable_6xx           },
 	{"local_ack_mode",      PARAM_INT, &default_tm_cfg.local_ack_mode        },
+#ifdef CANCEL_REASON_SUPPORT
 	{"local_cancel_reason", PARAM_INT, &default_tm_cfg.local_cancel_reason   },
 	{"e2e_cancel_reason",   PARAM_INT, &default_tm_cfg.e2e_cancel_reason     },
+#endif /* CANCEL_REASON_SUPPORT */
 	{0,0,0}
 };
 
@@ -1748,8 +1754,10 @@ T_SET_FLAG_GEN_FUNC(t_set_disable_6xx, T_DISABLE_6xx)
 T_SET_FLAG_GEN_FUNC(t_set_disable_failover, T_DISABLE_FAILOVER)
 
 
+#ifdef CANCEL_REASON_SUPPORT
 /* disable/enable e2e cancel reason copy for the current transaction */
 T_SET_FLAG_GEN_FUNC(t_set_no_e2e_cancel_reason, T_NO_E2E_CANCEL_REASON)
+#endif /* CANCEL_REASON_SUPPORT */
 
 
 /* script function, FAILURE_ROUTE only, returns true if the