diff --git a/chipset_enable.c b/chipset_enable.c
index 02d139e..d124291 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -27,12 +27,10 @@
 
 #define _LARGEFILE64_SOURCE
 
-#include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+#include <unistd.h>
 #include "flash.h"
 
 #if defined(__i386__) || defined(__x86_64__)
diff --git a/hwaccess.c b/hwaccess.c
index f754166..85e13ed 100644
--- a/hwaccess.c
+++ b/hwaccess.c
@@ -21,10 +21,12 @@
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>
+#include <sys/types.h>
+#if !defined (__DJGPP__)
 #include <unistd.h>
 #include <fcntl.h>
-#include <sys/types.h>
 #include <errno.h>
+#endif
 #include "flash.h"
 
 #if defined(__i386__) || defined(__x86_64__)
@@ -42,12 +44,14 @@
 
 void get_io_perms(void)
 {
+#if defined(__DJGPP__)
+	/* We have full permissions by default. */
+	return;
+#else
 #if defined (__sun) && (defined(__i386) || defined(__amd64))
 	if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
 #elif defined(__FreeBSD__) || defined (__DragonFly__)
 	if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
-#elif __DJGPP__
-	if (0) {
 #else 
 	if (iopl(3) != 0) {
 #endif
@@ -55,6 +59,7 @@
 			"You need to be root.\n", strerror(errno));
 		exit(1);
 	}
+#endif
 }
 
 void release_io_perms(void)
diff --git a/internal.c b/internal.c
index 9619618..8230926 100644
--- a/internal.c
+++ b/internal.c
@@ -21,10 +21,7 @@
 #include <stdint.h>
 #include <string.h>
 #include <stdlib.h>
-#include <fcntl.h>
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
 #include "flash.h"
 
 #if NEED_PCI == 1
diff --git a/physmap.c b/physmap.c
index 7642938..c65df30 100644
--- a/physmap.c
+++ b/physmap.c
@@ -23,13 +23,17 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
 #include "flash.h"
 
+/* Do we need any file access or ioctl for physmap or MSR? */
+#if !defined(__DJGPP__)
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#endif
+
 #ifdef __DJGPP__
 #include <dpmi.h>
 #include <sys/nearptr.h>