Something similar to emconfigure/emmake?

Hello,
  One of the killer features of Emscripten is the ability to configure and build a C/C++ library, and then use
that libraries' functionality in the javascript environment. For example, libogg and libvorbis.

  The way I understand it, currently I would have to 'configure' (basically, suss out compile-time defines and
compiler flags) on my own, compile the library files individually, compile my wrapper, and then link them together.

  Do I understand the current situation correctly?
  Are there plans for creating tools similar to emconfigure and emmake,
or is there an established convention for using/porting libraries?

Thank you,
  Steve