[Python-Dev] PyObject_GenericGetAttr vs cygwin

[Michael Hudson]

CVS doesn't build cleanly on cygwin at the moment.

The problem is that the address of a DL_IMPORT()ed function is not a
compile time constant when building shared libraries, so when a type
wants to use PyObject_GenericGetAttr as it's tp_getattro it shouldn't
include it in the PyTypeObject definition (similar to why we now
always write

    PyObject_HEAD_INIT(NULL)

).

This means that (currently) cPickle and socket don't build as shared
libraries.

Two solutions:

(1) build them statically.  This works, but is hardly a long term
    solution.
(2) change them to poke the relavent things into the type object at
    module load time.

Shall I just do (2)?

Anyways, I thought I should mention this as an issue.

Cheers,
M.

-- 
  C is not clean -- the language has _many_ gotchas and traps, and
  although its semantics are _simple_ in some sense, it is not any
  cleaner than the assembly-language design it is based on.
                                        -- Erik Naggum, comp.lang.lisp