diff --git a/WHATSNEW b/WHATSNEW
index 1618700b7..cdfa8b5b3 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -69,6 +69,8 @@ Fixed bugs:
   from the system classloader.  The packages are determined by the
   version of the JVM running Ant.
 
+* Ant didn't find the runtime libraries on IBM's JDK 1.4 for Linux.
+
 Other changes:
 --------------
 * The filesetmanifest attribute of <jar> has been reenabled.
diff --git a/src/main/org/apache/tools/ant/types/Path.java b/src/main/org/apache/tools/ant/types/Path.java
index 9f71ab21e..1a3d3ceb5 100644
--- a/src/main/org/apache/tools/ant/types/Path.java
+++ b/src/main/org/apache/tools/ant/types/Path.java
@@ -602,7 +602,17 @@ public class Path extends DataType implements Cloneable {
                                  + File.separator + "jre"
                                  + File.separator + "lib"
                                  + File.separator + "rt.jar"));
-            
+
+            // IBM's 1.4 has rt.jar split into 5 smaller jars.
+            String[] ibmJars =
+                { "core", "graphics", "security", "server", "xml" };
+            for (int i = 0; i < ibmJars.length; i++) {
+                addExisting(new Path(null,
+                                     System.getProperty("java.home")
+                                     + File.separator + "lib"
+                                     + File.separator + ibmJars[i] + ".jar"));
+            }
+
             // Added for MacOS X
             addExisting(new Path(null,
                                  System.getProperty("java.home")