mac/info: add build date

Author: Akemi

osdep/mac/app_bridge_objc.h

@@ -64,6 +64,7 @@ static const int SWIFT_KEY_MOUSE_ENTER = MP_KEY_MOUSE_ENTER;
 
 static const char *const swift_mpv_version = mpv_version;
 static const char *const swift_mpv_copyright = mpv_copyright;
+static const char *const swift_mpv_builddate = mpv_builddate;
 
 const char *app_bridge_pl_version(void);
 

osdep/mac/info_helper.swift

@@ -18,6 +18,7 @@
 class InfoHelper {
     static var mpvVersion: String { return String(cString: swift_mpv_version) }
     static var mpvCopyright: String { return String(cString: swift_mpv_copyright) }
+    static var mpvBuilddate: String { return String(cString: swift_mpv_builddate) }
 
     static var libplaceboVersion: String { return String(cString: app_bridge_pl_version()) }