diff --git a/include/cdio/types.h b/include/cdio/types.h
index 7499884e..b046842b 100644
--- a/include/cdio/types.h
+++ b/include/cdio/types.h
@@ -104,24 +104,15 @@ typedef uint8_t ubyte;
 #endif
   
 #ifndef __cplusplus
-
-/* All the stdbool.h seem to define those */
-#ifndef __bool_true_false_are_defined
-#define __bool_true_false_are_defined 1
-
-#undef bool
-#undef true
-#undef false
-
-#ifdef _Bool
-#define bool _Bool
-#else
-#define bool int
-#endif
-#define true 1
-#define false 0
-
-#endif /* __bool_true_false_are_defined */
+# if defined(HAVE_STDBOOL_H)
+#  include <stdbool.h>
+# else
+   /* ISO/IEC 9899:1999 <stdbool.h> missing -- enabling workaround */
+  
+#   define false   0
+#   define true    1
+#   define bool uint8_t
+# endif /*HAVE_STDBOOL_H*/
 #endif /*C++*/
   
   /* some GCC optimizations -- gcc 2.5+ */
diff --git a/lib/driver/FreeBSD/freebsd.h b/lib/driver/FreeBSD/freebsd.h
index 7f20a463..b8e8fca9 100644
--- a/lib/driver/FreeBSD/freebsd.h
+++ b/lib/driver/FreeBSD/freebsd.h
@@ -25,11 +25,8 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #include <cdio/sector.h>
+#include <cdio/types.h>
 #include "cdio_assert.h"
 #include "cdio_private.h"
 
diff --git a/lib/driver/MSWindows/win32.c b/lib/driver/MSWindows/win32.c
index b15afef6..3a1456dd 100644
--- a/lib/driver/MSWindows/win32.c
+++ b/lib/driver/MSWindows/win32.c
@@ -24,13 +24,10 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #include <cdio/cdio.h>
 #include <cdio/sector.h>
 #include <cdio/util.h>
+#include <cdio/types.h>
 #include <cdio/mmc.h>
 #include <cdio/logging.h>
 #include "cdio_assert.h"
diff --git a/lib/driver/aix.c b/lib/driver/aix.c
index 54270262..bd6862e7 100644
--- a/lib/driver/aix.c
+++ b/lib/driver/aix.c
@@ -20,10 +20,6 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #ifdef HAVE_STRING_H
 #include <string.h>
 #endif
@@ -31,6 +27,7 @@
 #include <cdio/logging.h>
 #include <cdio/sector.h>
 #include <cdio/util.h>
+#include <cdio/types.h>
 #include <cdio/mmc.h>
 #include "cdio_assert.h"
 #include "cdio_private.h"
diff --git a/lib/driver/netbsd.c b/lib/driver/netbsd.c
index 91139029..77073943 100644
--- a/lib/driver/netbsd.c
+++ b/lib/driver/netbsd.c
@@ -45,12 +45,9 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #include <cdio/sector.h>
 #include <cdio/util.h>
+#include <cdio/types.h>
 #include "cdio_assert.h"
 #include "cdio_private.h"
 
diff --git a/lib/driver/os2.c b/lib/driver/os2.c
index d8f9af44..3b13f078 100644
--- a/lib/driver/os2.c
+++ b/lib/driver/os2.c
@@ -24,13 +24,10 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #include <cdio/cdio.h>
 #include <cdio/sector.h>
 #include <cdio/util.h>
+#include <cdio/types.h>
 #include <cdio/mmc.h>
 #include <cdio/logging.h>
 #include "cdio_assert.h"
diff --git a/lib/driver/osx.c b/lib/driver/osx.c
index d981ecfa..ea8f47ad 100644
--- a/lib/driver/osx.c
+++ b/lib/driver/osx.c
@@ -32,13 +32,10 @@
 # include "config.h"
 #endif
 
-#ifdef HAVE_STDBOOL_H
-# include <stdbool.h>
-#endif 
-
 #include <cdio/logging.h>
 #include <cdio/sector.h>
 #include <cdio/util.h>
+#include <cdio/types.h>
 
 /* For SCSI TR_* enumerations */
 typedef enum {