sndio: Patched to compile if SIO_DEVANY isn't defined. (It isn't in whatever Raspbian is currently shipping.)
diff --git a/src/audio/sndio/SDL_sndioaudio.c b/src/audio/sndio/SDL_sndioaudio.c
index 18c2608..45fef50 100644
--- a/src/audio/sndio/SDL_sndioaudio.c
+++ b/src/audio/sndio/SDL_sndioaudio.c
@@ -48,6 +48,10 @@
#define INFTIM -1
#endif
+#ifndef SIO_DEVANY
+#define SIO_DEVANY "default"
+#endif
+
static struct sio_hdl * (*SNDIO_sio_open)(const char *, unsigned int, int);
static void (*SNDIO_sio_close)(struct sio_hdl *);
static int (*SNDIO_sio_setpar)(struct sio_hdl *, struct sio_par *);