diff --git a/status/explicit-failures-markup.xml b/status/explicit-failures-markup.xml
index ce63b1dacf..d0808a2daf 100644
--- a/status/explicit-failures-markup.xml
+++ b/status/explicit-failures-markup.xml
@@ -2922,11 +2922,17 @@ for more information.
         <mark-expected-failures>
             <test name="optional_test_ref"/>
             <toolset name="darwin-4.0.1"/>
+            <toolset name="darwin-4.2.1"/>
             <toolset name="gcc-mingw-3.4.5"/>
+            <toolset name="gcc-mingw-4.4.*"/>
+            <toolset name="gcc-mingw-4.5.*"/>
             <toolset name="gcc-3.4.2_hpux_pa_risc"/>
             <toolset name="gcc-3.4.6_linux_ia64"/>
             <toolset name="gcc-4.2.*"/>
             <toolset name="gcc-4.1.2_sunos_i86pc"/>
+            <toolset name="gcc-4.3*"/>
+            <toolset name="gcc-4.4*"/>
+            <toolset name="gcc-4.5*"/>
                 <note author="Fernando Cacciola" id="optional-compiler-bug">
                 <p>This failure is caused by a compiler bug, and as far as we can 
                 tell, can't be worked around in the library, although we think