I have a "jamfile" for building my C++ project using the Jam build
tool (perforce.com).  I need a Makefile to build the same project
using the tool "make".  So I am asking for a script which can convert
my working jamfile into a working Makefile (the script would
presumably need to read files like "jambase" and my header files, and
maybe environment variables).    Since I don't know how to do it
myself, I may have left out crucial details; feel free to ask.