ctrl: re-introduce duplicate declaration of ctrl_cmd_send()

In Change-Id Ic81af56e7ea6921ba39168727ef64c308e9c6754 we removed
the duplicate declaration of ctrl_cmd_send(), which was declared
both in control_if.h and in control_cmd.h.  Unfortunately  this broke
legacy openbsc.git, so let's re-introduce it.

Change-Id: I1d415c5e80cfb7ef9e11d33c0c3eaece40ebb1da
---
M include/osmocom/ctrl/control_cmd.h
1 file changed, 16 insertions(+), 0 deletions(-)

diff --git a/include/osmocom/ctrl/control_cmd.h b/include/osmocom/ctrl/control_cmd.h
index 6422710..e4f78fa 100644
--- a/include/osmocom/ctrl/control_cmd.h
+++ b/include/osmocom/ctrl/control_cmd.h
@@ -124,6 +124,8 @@
 
 int ctrl_cmd_exec(vector vline, struct ctrl_cmd *command, vector node, void *data);
 int ctrl_cmd_install(enum ctrl_node_type node, struct ctrl_cmd_element *cmd);
+/* ctrl_cmd_send is also declared in control_if.h, but legacy openbsc.git expects it here */
+int ctrl_cmd_send(struct osmo_wqueue *queue, struct ctrl_cmd *cmd);
 int ctrl_cmd_send_to_all(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd);
 struct ctrl_cmd *ctrl_cmd_parse3(void *ctx, struct msgb *msg, bool *parse_failed);
 struct ctrl_cmd *ctrl_cmd_parse2(void *ctx, struct msgb *msg);

