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Got a piece of software into my hands, a driver for a DSL box. No Makefile's in the archive, no documentation, nothing. Just some directories with a lot of subdirectories and a buzzword "feature": a lot of code is self-generated from XML files.

Ok, some steps later, i ran into a compiler error: "error: invalid lvalue in assignment". Uff ...

After deep debugging into a lot of recursive and self-creating include files, there was this specific error:

(xml_user_context_t *)ucontext = __c_ctxt->global->uctxt;

After moving the cast part to the (in every meaning) right side of the assignment, things are working. At least for this part.

I bet, this was never compiling before, but it was released software from the manufacturer of the chips ...