diff --git a/library/changes b/library/changes
index 0ce11fe..df02176 100644
--- a/library/changes
+++ b/library/changes
@@ -1,3 +1,7 @@
+- In __time_delay() the CheckIO() test was wrong and should have
+  tested for a request still in progress. Fixed.
+
+
 c.lib 1.194 (15.7.2005)
 
 - Added getopt_long to libunix.a <tfrieden>
diff --git a/library/macros.h b/library/macros.h
index 5d7207c..6602bd5 100644
--- a/library/macros.h
+++ b/library/macros.h
@@ -1,5 +1,5 @@
 /*
- * $Id: macros.h,v 1.20 2005-05-27 13:19:30 obarthel Exp $
+ * $Id: macros.h,v 1.21 2005-08-02 10:18:50 obarthel Exp $
  *
  * :ts=4
  *
@@ -42,6 +42,7 @@
 
 /****************************************************************************/
 
+#define BUSY ((struct IORequest *)NULL)
 #define CANNOT !
 #define DO_NOTHING ((void)0)
 #define NO !
diff --git a/library/unistd_time_delay.c b/library/unistd_time_delay.c
index e031041..0dfd7aa 100644
--- a/library/unistd_time_delay.c
+++ b/library/unistd_time_delay.c
@@ -1,5 +1,5 @@
 /*
- * $Id: unistd_time_delay.c,v 1.5 2005-03-18 12:38:25 obarthel Exp $
+ * $Id: unistd_time_delay.c,v 1.6 2005-08-02 10:18:50 obarthel Exp $
  *
  * :ts=4
  *
@@ -106,7 +106,7 @@ __time_delay(unsigned long seconds,unsigned long microseconds)
 			{
 				ULONG seconds_now;
 
-				if(CheckIO((struct IORequest *)__timer_request))
+				if(CheckIO((struct IORequest *)__timer_request) == BUSY)
 					AbortIO((struct IORequest *)__timer_request);
 
 				WaitIO((struct IORequest *)__timer_request);