Where can I find info on using the "configure" script

["Connolly, Patrick" <Patrick_Connolly at NetcomSystems dot com>]

Title: Where can I find info on using the "configure" script

Hello,
        I need to compile some libraries (into shared objects...  . .so's).   Where can I find information on how to use the

"configure script" to do this.  I don't know much about the configure script ...I've been writing my own makefiles.

I'd prefer an online information source since I'm in a hurry ...but if a good publication is available with a comprehensive

discussion of the use of the configure script,  please let me know.

Thanks,
Patrick Connolly