Directory: make the header C++ only

src/db/ProxyDatabasePlugin.cxx

@@ -22,6 +22,7 @@
 #include "DatabasePlugin.hxx"
 #include "DatabaseSelection.hxx"
 #include "PlaylistVector.hxx"
+#include "Directory.hxx"
 #include "gcc.h"
 
 extern "C" {
@@ -31,8 +32,6 @@ extern "C" {
 #include "tag.h"
 }
 
-#include "directory.h"
-
 #undef MPD_DIRECTORY_H
 #undef MPD_SONG_H
 #include <mpd/client.h>

src/db/SimpleDatabasePlugin.cxx

@@ -21,6 +21,7 @@
 #include "SimpleDatabasePlugin.hxx"
 #include "DatabaseSelection.hxx"
 #include "DatabaseHelpers.hxx"
+#include "Directory.hxx"
 #include "SongFilter.hxx"
 #include "DatabaseSave.hxx"
 #include "DatabaseLock.hxx"
@@ -30,8 +31,6 @@ extern "C" {
 #include "conf.h"
 }
 
-#include "directory.h"
-
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>