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bpo-35011: Restore use of pyexpatns.h in libexpat (GH-9939) 

Restores the use of pyexpatns.h to isolate our embedded copy of the expat C
library so that its symbols do not conflict at link or dynamic loading time
with an embedding application or other extension modules with their own
version of libexpat.

5dc3f23b5f (diff-3afaf7274c90ce1b7405f75ad825f545) inadvertently removed it when upgrading expat.
This commit is contained in:
Gregory P. Smith 2018-10-17 18:10:46 -07:00 committed by GitHub
parent 74a8b6ea7e
commit 9d4712bc8f
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4
Misc/NEWS.d/next/Build/2018-10-17-17-38-57.bpo-35011.GgoPIC.rst Normal file
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@ -0,0 +1,4 @@
Restores the use of pyexpatns.h to isolate our embedded copy of the expat C
library so that its symbols do not conflict at link or dynamic loading time
with an embedding application or other extension modules with their own
version of libexpat.

4
Modules/expat/expat_external.h
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@ -35,6 +35,10 @@
/* External API definitions */
/* Namespace external symbols to allow multiple libexpat version to
co-exist. */
#include "pyexpatns.h"
#if defined(_MSC_EXTENSIONS) && !defined(__BEOS__) && !defined(__CYGWIN__)
# define XML_USE_MSC_EXTENSIONS 1
#endif