- Made sure that the files that contains the declarations
  of implementated functions are included.
- Corrected mismatching prototypes.
- Cleaned up the include section.

diff --git a/msdos/dosconf.c b/msdos/dosconf.c
index 0e7ee44..1f6c18b 100644
--- a/msdos/dosconf.c
+++ b/msdos/dosconf.c
@@ -5,16 +5,22 @@
  *
  */
 
+#include "config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
+
 #include "winbase.h"
-#include "msdos.h"
-#include "debugtools.h"
-#include "options.h"
+
 #include "file.h"
+#include "miscemu.h"
+#include "msdos.h"
+#include "options.h"
+
+#include "debugtools.h"
 
 DEFAULT_DEBUG_CHANNEL(profile);