winealsa: Ensure unixlib function tables and enum stay in sync.

dlls/mmdevapi/unixlib.h

@@ -332,4 +332,5 @@ enum unix_funcs
     midi_in_message,
     midi_notify_wait,
     aux_message,
+    funcs_count
 };

dlls/winealsa.drv/alsa.c

@@ -2504,7 +2504,7 @@ static NTSTATUS alsa_get_prop_value(void *args)
     return STATUS_SUCCESS;
 }
 
-unixlib_entry_t __wine_unix_call_funcs[] =
+const unixlib_entry_t __wine_unix_call_funcs[] =
 {
     alsa_process_attach,
     alsa_not_implemented,
@@ -2542,6 +2542,8 @@ unixlib_entry_t __wine_unix_call_funcs[] =
     alsa_not_implemented,
 };
 
+C_ASSERT(ARRAYSIZE(__wine_unix_call_funcs) == funcs_count);
+
 #ifdef _WIN64
 
 typedef UINT PTR32;
@@ -2958,7 +2960,7 @@ static NTSTATUS alsa_wow64_get_prop_value(void *args)
     return STATUS_SUCCESS;
 }
 
-unixlib_entry_t __wine_unix_call_wow64_funcs[] =
+const unixlib_entry_t __wine_unix_call_wow64_funcs[] =
 {
     alsa_process_attach,
     alsa_not_implemented,
@@ -2996,4 +2998,6 @@ unixlib_entry_t __wine_unix_call_wow64_funcs[] =
     alsa_not_implemented,
 };
 
+C_ASSERT(ARRAYSIZE(__wine_unix_call_wow64_funcs) == funcs_count);
+
 #endif /* _WIN64 */