Index: Jamfile.v2
===================================================================
RCS file: /cvsroot/boost/boost/libs/iostreams/build/Jamfile.v2,v
retrieving revision 1.3
diff -u -r1.3 Jamfile.v2
--- Jamfile.v2	24 Jun 2005 10:00:27 -0000	1.3
+++ Jamfile.v2	11 Feb 2006 18:32:31 -0000
@@ -33,7 +33,14 @@
         EXIT "Wrong library name passed to 'create-library' in libs/iostream/build/Jamfile.v2" ;
     }
     
-    if $(NO_COMPRESSION) || $(NO_$(LIB))
+    if [ os.name ] = NT && ! $($(LIB)_SOURCE && ! $($(LIB)_INCLUDE)
+    {
+        if $(debug)
+        {
+            ECHO "notice: iostreams: not using $(library-name) compression " ;
+        }
+    }
+    else if $(NO_COMPRESSION) || $(NO_$(LIB))
     {
         if $(debug)
         {