scripting: add a way to run sub processes as "scripts"

This is just a more convenient way to start IPC client scripts per mpv
instance.

Does not work on Windows, although it could if the subprocess and IPC
parts are implemented (and I guess .exe/.bat suffixes are required).
Also untested whether it builds on Windows. A lot of other things are
untested too, so don't complain.

1 files changed, 6 insertions, 0 deletions

diff --git a/input/ipc-dummy.c b/input/ipc-dummy.c
index d9c31c046c..f0232b2f6e 100644
--- a/input/ipc-dummy.c
+++ b/input/ipc-dummy.c
@@ -8,6 +8,12 @@ struct mp_ipc_ctx *mp_init_ipc(struct mp_client_api *client_api,
     return NULL;
 }
 
+bool mp_ipc_start_anon_client(struct mp_ipc_ctx *ctx, struct mpv_handle *h,
+                              int out_fd[2])
+{
+    return false;
+}
+
 void mp_uninit_ipc(struct mp_ipc_ctx *ctx)
 {
 }