Index: tools/build/v2/tools/gcc.jam
===================================================================
--- tools/build/v2/tools/gcc.jam	(revision 50187)
+++ tools/build/v2/tools/gcc.jam	(working copy)
@@ -118,6 +118,8 @@
         }
     }
 
+    configure-version-specific $(version) ;
+
     local condition ;
     if $(flavor)
     {
@@ -214,6 +216,20 @@
     rc.configure $(rc) : $(condition) : <rc-type>$(rc-type) ;
 }
 
+rule configure-version-specific ( version )
+{
+    if [ MATCH ^("4.*") : $(version) ]
+    {
+        toolset.flags gcc.compile OPTIONS <hide-symbols>on : -fvisibility=hidden ;
+        toolset.flags gcc.compile OPTIONS <hide-symbols>off : -fvisibility=default ;
+        toolset.flags gcc.compile OPTIONS <hide-symbols>inlines : -fvisibility-inlines-hidden ;
+    }
+    if [ MATCH ^("4.3.*") : $(version) ]
+    {
+       toolset.flag gcc.compile OPTIONS <hide-symbols>ms-compat : -fvisibility-ms-compat ; 
+    }
+}
+
 if [ os.name ] = NT
 {
     # This causes single-line command invocation to not go through .bat files,
Index: tools/build/v2/tools/darwin.jam
===================================================================
--- tools/build/v2/tools/darwin.jam	(revision 50187)
+++ tools/build/v2/tools/darwin.jam	(working copy)
@@ -71,7 +71,11 @@
      <architecture>x86/<instruction-set>
      <architecture>power/<address-model>32
      <architecture>power/<address-model>64
-     <architecture>power/<instruction-set>  ;
+     <architecture>power/<instruction-set>  
+     <hide-symbols>on 
+     <hide-symbols>off 
+     <hide-symbols>ms-compat 
+     <hide-symbols>inlines ;
 
 # Options:
 #
Index: tools/build/v2/tools/builtin.jam
===================================================================
--- tools/build/v2/tools/builtin.jam	(revision 50187)
+++ tools/build/v2/tools/builtin.jam	(working copy)
@@ -289,6 +289,9 @@
 # Used to select a specific variant of C++ ABI if the compiler supports several.
 feature.feature c++abi : : propagated optional ;
 
+# Hide symbols 
+feature.feature hide-symbols : on off ms-compat inlines : optional free composite ;
+
 feature.feature conditional : : incidental free ;
 
 # The value of 'no' prevents building of a target.