[Cython] Broken C-API generation for ext modules

[Lisandro Dalcin]

The commit below from Stefan broke C-API generation for extension
modules. The problem is that the code of __Pyx_ImportModule() and
__Pyx_ImportType() depeds on the #definition of
__Pyx_PyIdentifier_FromString , and such #define is not emitted in
C-API headers.

Stefan, given that __Pyx_PyIdentifier_FromString() is only used in
__Pyx_ImportModule() and __Pyx_ImportType(), what's your opinion about
just rolling back your commit?


commit 500f9a40f5ad441c2c204d076cfc4f82a41d531b
Author: Stefan Behnel <scoder at users.berlios.de>
Date:   Sat Sep 10 00:14:05 2011 +0200

    minor code simplification in utility functions by using macro for
Py2/3 dependent PyString/PyUnicode_FromString() calls


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Lisandro Dalcin
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