libremidi update to v5.4.3 and added virtual midi out as default

include/libremidi/api-c.h

@@ -1,13 +1,15 @@
 #pragma once
+#ifndef LIBREMIDI_API_C_H
+#define LIBREMIDI_API_C_H
 
-#if __cplusplus
+#if __cplusplus && !defined(LIBREMIDI_MODULE_BUILD)
 extern "C" {
 #endif
 
 //! MIDI API specifier arguments.
 //! To get information on which feature is supported by each back-end, check their backend file
 //! in e.g. backends/winmm.hpp, etc.
-typedef enum libremidi_api
+enum libremidi_api
 {
   UNSPECIFIED = 0x0, /*!< Search for a working compiled API. */
 
@@ -22,6 +24,8 @@ typedef enum libremidi_api
   PIPEWIRE,       /*!< PipeWire */
   KEYBOARD,       /*!< Computer keyboard input */
   NETWORK,        /*!< MIDI over IP */
+  ANDROID_AMIDI,  /*!< Android AMidi API */
+  KDMAPI,         /*!< OmniMIDI KDMAPI (Windows) */
 
   // MIDI 2.0 APIs
   ALSA_RAW_UMP = 0x1000, /*!< Raw ALSA API for MIDI 2.0 */
@@ -30,10 +34,15 @@ typedef enum libremidi_api
   WINDOWS_MIDI_SERVICES, /*!< Windows API for MIDI 2.0. Requires Windows 11 */
   KEYBOARD_UMP,          /*!< Computer keyboard input */
   NETWORK_UMP,           /*!< MIDI2 over IP */
+  JACK_UMP,              /*!< MIDI2 over JACK, type "32 bit raw UMP". Requires PipeWire v1.4+. */
+  PIPEWIRE_UMP,          /*!< MIDI2 over PipeWire. Requires v1.4+. */
 
   DUMMY = 0xFFFF /*!< A compilable but non-functional API. */
-} libremidi_api;
+};
 
-#if __cplusplus
+typedef enum libremidi_api libremidi_api;
+
+#if __cplusplus && !defined(LIBREMIDI_MODULE_BUILD)
 }
 #endif
+#endif