[Enter description of this extension point] a fully qualified identifier of the target extension point an optional identifier of the extension instance an optional name of the extension instance a unique name that will be used to identify this toolchain provider. name of a Java class implementing the ICToolchainProvider interface. project nature this build configuration is associated with. If '*' or not specified, it is associated with all project natures. [Enter extension point usage example here.] [Enter API information here.] [Enter information about supplied implementation of this extension point.]