diff --git a/build/org.eclipse.cdt.managedbuilder.gnu.ui/plugin.xml b/build/org.eclipse.cdt.managedbuilder.gnu.ui/plugin.xml
index eb922533477..bf00fca1a1f 100644
--- a/build/org.eclipse.cdt.managedbuilder.gnu.ui/plugin.xml
+++ b/build/org.eclipse.cdt.managedbuilder.gnu.ui/plugin.xml
@@ -1808,7 +1808,6 @@
                      name="%ToolChainName.Dbg"
                      targetTool="cdt.managedbuild.tool.gnu.c.linker.cygwin.exe.debug;cdt.managedbuild.tool.gnu.cpp.linker.cygwin.exe.debug"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.exe.debug">
                   <targetPlatform
@@ -1880,7 +1879,6 @@
                      name="%ToolChainName.Rel"
                      targetTool="cdt.managedbuild.tool.gnu.c.linker.cygwin.exe.release;cdt.managedbuild.tool.gnu.cpp.linker.cygwin.exe.release"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.exe.release">
                   <targetPlatform
@@ -1959,7 +1957,6 @@
                      name="%ToolChainName.Dbg"
                      targetTool="cdt.managedbuild.tool.gnu.c.linker.cygwin.so.debug;cdt.managedbuild.tool.gnu.cpp.linker.cygwin.so.debug"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.so.debug">
                   <targetPlatform
@@ -2053,7 +2050,6 @@
                      name="%ToolChainName.Rel"
                      targetTool="cdt.managedbuild.tool.gnu.c.linker.cygwin.so.release;cdt.managedbuild.tool.gnu.cpp.linker.cygwin.so.release"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.so.release">
                   <targetPlatform
@@ -2154,7 +2150,6 @@
                      name="%ToolChainName.Dbg"
                      targetTool="cdt.managedbuild.tool.gnu.archiver.cygwin.lib.debug"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.lib.debug">
                   <targetPlatform
@@ -2222,7 +2217,6 @@
                      name="%ToolChainName.Rel"
                      targetTool="cdt.managedbuild.tool.gnu.archiver.cygwin.lib.release"
                      scannerConfigDiscoveryProfileId="org.eclipse.cdt.managedbuilder.core.GCCWinManagedMakePerProjectProfile"
-                     isToolChainSupported="org.eclipse.cdt.managedbuilder.gnu.cygwin.IsGnuCygwinToolChainSupported"
                      configurationEnvironmentSupplier="org.eclipse.cdt.managedbuilder.gnu.cygwin.GnuCygwinConfigurationEnvironmentSupplier"
                      id="cdt.managedbuild.toolchain.gnu.cygwin.lib.release">
                   <targetPlatform
diff --git a/build/org.eclipse.cdt.managedbuilder.gnu.ui/src/org/eclipse/cdt/managedbuilder/gnu/cygwin/IsGnuCygwinToolChainSupported.java b/build/org.eclipse.cdt.managedbuilder.gnu.ui/src/org/eclipse/cdt/managedbuilder/gnu/cygwin/IsGnuCygwinToolChainSupported.java
index e4d53ad88d5..ee4d62e0301 100644
--- a/build/org.eclipse.cdt.managedbuilder.gnu.ui/src/org/eclipse/cdt/managedbuilder/gnu/cygwin/IsGnuCygwinToolChainSupported.java
+++ b/build/org.eclipse.cdt.managedbuilder.gnu.ui/src/org/eclipse/cdt/managedbuilder/gnu/cygwin/IsGnuCygwinToolChainSupported.java
@@ -20,6 +20,17 @@ import org.eclipse.cdt.managedbuilder.core.IManagedIsToolChainSupported;
 import org.eclipse.cdt.managedbuilder.core.IToolChain;
 import org.eclipse.core.runtime.PluginVersionIdentifier;
 
+/*
+ * This class inplements the IManagedIsToolChainSupported for the Gnu Cygwin tool-chain
+ * The class is NOT used currently, because currently the gnu cygwin tool-chain
+ * is intended to be used not only with Cygwin, but with MinGW also, and there is no 
+ * correct way of determining whether the appropriate packages are installed for MinGW.
+ * 
+ * For the future MBS/CDT versions we might create the separate tool-chain/configuration/project-type
+ * for the MinGW and define a set of converters using the tool-chain converter mechanism that MBS will provide,
+ * that would convert the CygWin to the MinGW projects/tool-chains, and vice a versa.
+ * 
+ */
 public class IsGnuCygwinToolChainSupported implements
 		IManagedIsToolChainSupported {