diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index dcf7ef163..6c4251d01 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,7 @@
+2003-07-03  Shaun Jackman  <sjackman@pathwayconnect.com>
+
+	* libc/include/stdbool.h: New header file defined by C99.
+
 2003-07-02  Jeff Johnston  <jjohnstn@redhat.com>
 
 	* libc/include/sys/types.h (int8_t): Make signed.
diff --git a/newlib/libc/include/stdbool.h b/newlib/libc/include/stdbool.h
new file mode 100644
index 000000000..291740ae9
--- /dev/null
+++ b/newlib/libc/include/stdbool.h
@@ -0,0 +1,22 @@
+#ifndef _STDBOOL_H_
+#define _STDBOOL_H_
+
+#ifndef __cplusplus
+
+#undef bool
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+#define bool _Bool
+#else
+#define bool unsigned char
+#endif
+
+#undef false
+#define false 0
+#undef true
+#define true 1
+
+#define __bool_true_false_are_defined 1
+
+#endif /* !__cplusplus */
+
+#endif /* _STDBOOL_H_ */