我怎样才能弄清楚一个特定版本的库为什么在依赖项中?

I'm building a large C++ project using cmake on ubuntu 12.04 and then taking the resulting binary package and trying to run it on ubuntu 11.04. However the program fails saying it needs glibc version 2.14 but can only find up to version 2.13. How can I find out exactly why glibc=>2.14 is required?I'm building a large C++ project using cmake on