Minimum template for compiler toolset

What would be the minimum template or skeleton for a new C++ compiler 
toolset as a jamfile ? Does such a template physically exist in Boost 
Build ?

I have read the Boost Build Extender Manual in the Boost Build 
documentation. But it seems to me that all C++ compilers do more or less 
the same thing, which is:

1) Compile C++ source files into an object file
2) Create either a static or shared library from object files
3) Create an executable from object files

and therefore a common template for all C++ compiler toolsets could be 
provided in Boost Build from which a programmer can create his own by 
plugging in compiler features and command lines, since all C++ compilers 
have the same metatargets more or less.

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