diff --git a/cppuhelper/source/implbase_ex.cxx b/cppuhelper/source/implbase_ex.cxx
index 76622ff81718..4bb05a0109c6 100644
--- a/cppuhelper/source/implbase_ex.cxx
+++ b/cppuhelper/source/implbase_ex.cxx
@@ -2,9 +2,9 @@
  *
  *  $RCSfile: implbase_ex.cxx,v $
  *
- *  $Revision: 1.5 $
+ *  $Revision: 1.6 $
  *
- *  last change: $Author: hr $ $Date: 2002-08-15 12:36:30 $
+ *  last change: $Author: vg $ $Date: 2003-04-15 16:34:54 $
  *
  *  The Contents of this file are made available subject to the terms of
  *  either of the following licenses
@@ -113,7 +113,7 @@ static inline void checkInterface( Type const & rType )
         buf.append( rType.getTypeName() );
         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\": no interface type!") );
         OUString msg( buf.makeStringAndClear() );
-#ifdef _DEBUG
+#if OSL_DEBUG_LEVEL > 0
         OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) );
         OSL_ENSURE( 0, str.getStr() );
 #endif
@@ -162,7 +162,7 @@ static inline type_entry * __getTypeEntries( class_data * cd )
                     buf.append( rType.getTypeName() );
                     buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\" is no interface type!") );
                     OUString msg( buf.makeStringAndClear() );
-#ifdef _DEBUG
+#if OSL_DEBUG_LEVEL > 0
                     OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) );
                     OSL_ENSURE( 0, str.getStr() );
 #endif
@@ -232,7 +232,7 @@ static inline void * __queryDeepNoXInterface(
             buf.append( pEntries[ n ].m_type.typeRef->pTypeName );
             buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\"!") );
             OUString msg( buf.makeStringAndClear() );
-#ifdef _DEBUG
+#if OSL_DEBUG_LEVEL > 0
             OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) );
             OSL_ENSURE( 0, str.getStr() );
 #endif