add some more information to the configure output whenever it is instructed to use a library that is not the default
add some more information to the configure output whenever it is instructed to use a library that is not the default

git-svn-id: 27e0aca8c7a52a9ae65dfba2e16879604119af8c@814 93a4e39c-3214-0410-bb16-828d8e3bcd0f

fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia