- would be nice to reduce amount of changed files
(codegen output is often the same as the existing files - something similar to ccache
for codegen - but not overwriting output files if they are the same)
+- howto include the part after "# always the same:" in all makefiles using the codegenerator
+- lib name should be group name + suffix/prefix
+- at the moment make dist from within a clean source will not work
+ (this is related to the nodist problem)