diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
index 4d709622fb5..2a290535765 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
@@ -2558,5 +2558,22 @@ public class AST2CPPTests extends AST2BaseTest {
         assertInstances( col, i, 2 );
         assertInstances( col, p, 3 );
     }
+    
+    public void testBug86543() throws Exception {
+        StringBuffer buffer = new StringBuffer();
+        buffer.append("int printf( const char *, ... );             \n"); //$NON-NLS-1$
+        buffer.append("void foo(){                                  \n"); //$NON-NLS-1$
+        buffer.append("   int a, b;                                 \n"); //$NON-NLS-1$
+        buffer.append("   printf( \"hello\" );                      \n"); //$NON-NLS-1$
+        buffer.append("   printf(\"a=%d b=%d\", a, b );             \n"); //$NON-NLS-1$
+        buffer.append("}                                            \n"); //$NON-NLS-1$
+        
+        IASTTranslationUnit tu = parse(buffer.toString(), ParserLanguage.CPP);
+        CPPNameCollector col = new CPPNameCollector();
+        tu.getVisitor().visitTranslationUnit(col);
+        
+        IFunction printf = (IFunction) col.getName(6).resolveBinding();
+        assertInstances( col, printf, 3 );
+    }
 }
 
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
index 246c40a9f7f..d93b1fc0b06 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
@@ -1484,8 +1484,6 @@ public class CPPSemantics {
 				source = getSourceParameterType( sourceParameters, j );
 				if( source == null )
 				    continue outer;
-				if( source instanceof IProblemBinding )
-					return (IBinding) source;
 				
 				if( j < numTargetParams ){
 					if( targetLength == 0  && j == 0 ){
@@ -1502,11 +1500,7 @@ public class CPPSemantics {
 				if( varArgs ){
 					cost = new Cost( source, null );
 					cost.rank = Cost.ELLIPSIS_CONVERSION;
-				} /*else if ( target.getHasDefault() && source.isType( ITypeInfo.t_void ) && !source.hasPtrOperators() ){
-					//source is just void, ie no parameter, if target had a default, then use that
-					cost = new Cost( source, target );
-					cost.rank = Cost.IDENTITY_RANK;
-				}*/ else if( source.equals( target ) ){
+				} else if( source.equals( target ) ){
 					cost = new Cost( source, target );
 					cost.rank = Cost.IDENTITY_RANK;	//exact match, no cost
 				} else {