That's because different implementations provide different ways to generate executables. Some are simple, some are complex. For SBCL one needs to call a functi

That's because different implementations provide different ways to generate executables. Some are simple, some are complex. For SBCL one needs to call a function, which creates the executable image. http://www.sbcl.org/manual/index.html#Function-sb_002dext-save_002dlisp_002dand_002ddie http://www.sbcl.org/manual/index.html#Function-sb_002dext-sa... There are more complex machineries for application generation, though.