diff --git a/src/compiledata.cpp b/src/compiledata.cpp
index adaabcc0..59cdff46 100644
--- a/src/compiledata.cpp
+++ b/src/compiledata.cpp
@@ -29,9 +29,9 @@
 #include "wx/dir.h"
 #include "wx/filename.h"
 #include <wx/numdlg.h>
+#include "wx/progdlg.h"
 
 #include "speak_lib.h"
-#include "main.h"
 #include "speech.h"
 #include "options.h"
 #include "phoneme.h"
@@ -43,6 +43,16 @@
 #include <unistd.h>
 #endif
 
+// wxWidgets 3 name changes
+#if wxCHECK_VERSION(3, 0, 0)
+#define wxOPEN wxFD_OPEN
+#endif
+
+extern wxProgressDialog *progress;
+extern int progress_max;
+extern int gui_flag;
+extern char voice_name2[40];
+
 extern void FindPhonemesUsed(void);
 extern void DisplayErrorFile(const char *fname);
 extern "C" int utf8_in(int *c, const char *buf);