Index: IvyBuildNumber.java
===================================================================
--- IvyBuildNumber.java	(revision 738041)
+++ IvyBuildNumber.java	(working copy)
@@ -32,6 +32,7 @@
 import org.apache.ivy.plugins.matcher.ExactPatternMatcher;
 import org.apache.ivy.plugins.matcher.Matcher;
 import org.apache.ivy.plugins.matcher.PatternMatcher;
+import org.apache.ivy.plugins.resolver.DependencyResolver;
 import org.apache.ivy.plugins.version.VersionMatcher;
 import org.apache.tools.ant.BuildException;
 
@@ -74,6 +75,8 @@
 
     private String defaultBuildNumber = "0";
 
+    private String buildNumberResolverName=null;
+
     public String getModule() {
         return module;
     }
@@ -114,6 +117,14 @@
         defaultValue = default1;
     }
 
+    public String getResolver() {
+        return buildNumberResolverName;
+    }
+
+    public void setResolver(String publishResolverName) {
+        this.buildNumberResolverName = publishResolverName;
+    }
+
     public String getPrefix() {
         return prefix;
     }
@@ -148,25 +159,34 @@
         }
         
         SearchEngine searcher = new SearchEngine(settings);
-        ModuleRevisionId[] revisions = searcher.listModules(ModuleRevisionId.newInstance(organisation,
-            module, branch, ".*"), new PatternMatcher() {
-                private PatternMatcher exact = new ExactPatternMatcher();
-                private PatternMatcher regexp = new ExactOrRegexpPatternMatcher();
-            
-                public Matcher getMatcher(String expression) {
-                    if ((expression == organisation)
-                            || (expression == module)
-                            || (expression == branch)) {
-                        return exact.getMatcher(expression);
-                    }
-                    return regexp.getMatcher(expression);
+        
+        PatternMatcher patternMatcher = new PatternMatcher() {
+            private PatternMatcher exact = new ExactPatternMatcher();
+            private PatternMatcher regexp = new ExactOrRegexpPatternMatcher();
+        
+            public Matcher getMatcher(String expression) {
+                if ((expression == organisation)
+                        || (expression == module)
+                        || (expression == branch)) {
+                    return exact.getMatcher(expression);
                 }
+                return regexp.getMatcher(expression);
+            }
 
-                public String getName() {
-                    return "buildnumber-matcher";
-                }
-            });
-        
+            public String getName() {
+                return "buildnumber-matcher";
+            }
+        };
+        ModuleRevisionId[] revisions;
+        if (buildNumberResolverName == null) {
+            revisions = searcher.listModules(ModuleRevisionId.newInstance(organisation,
+                module, branch, ".*"), patternMatcher);
+        } else {
+            DependencyResolver resolver = settings.getResolver(buildNumberResolverName);
+            revisions = searcher.listModules(resolver, ModuleRevisionId.newInstance(organisation,
+                module, branch, ".*"), patternMatcher);
+        }
+
         ArtifactInfo[] infos = new ArtifactInfo[revisions.length];
         for (int i = 0; i < revisions.length; i++) {
             infos[i] = new ResolvedModuleRevisionArtifactInfo(revisions[i]);