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The attached will obviate need for patches like the following forever:
http://sf.net/tracker/?func=detail&aid=676837&group_id=5470&atid=305470
http://sf.net/tracker/?func=detail&aid=676839&group_id=5470&atid=305470
Unfortunately, this is a slippery slope. Unlike auto-importing
functions which has been around for a while, auto-importing data is
very new (and kind of scary). Additionally, it requires a special
linker option, --enable-runtime-pseudo-reloc, to work in all cases.
Hence, Cygwin Python shared extensions and embedded interpreters will
need to modify their build process unless they are using distutils.
I'm looking for advice. Should I use the latest, greatest Cygwin
functionality that makes building as similar as possible to Unix? Most
likely at the expense of breaking some dependent packages. Or, are
patches like the above considered acceptable and the preferred way to
go?
Thanks,
Jason
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Index: configure.in
===================================================================
RCS file: /cvsroot/python/python/dist/src/configure.in,v
retrieving revision 1.387
diff -u -p -r1.387 configure.in
--- configure.in 21 Jan 2003 10:14:40 -0000 1.387
+++ configure.in 30 Jan 2003 13:47:57 -0000
@@ -1101,7 +1101,7 @@ then
fi;;
SCO_SV*) LDSHARED='$(CC) -Wl,-G,-Bexport';;
Monterey*) LDSHARED="cc -G -dy -Bdynamic -Bexport -L/usr/lib/ia64l64";;
- CYGWIN*) LDSHARED="gcc -shared -Wl,--enable-auto-image-base";;
+ CYGWIN*) LDSHARED="gcc -shared -Wl,--enable-auto-image-base,--enable-auto-import,--enable-runtime-pseudo-reloc";;
atheos*) LDSHARED="gcc -shared";;
*) LDSHARED="ld";;
esac
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Index: pyport.h
===================================================================
RCS file: /cvsroot/python/python/dist/src/Include/pyport.h,v
retrieving revision 2.58
diff -u -p -r2.58 pyport.h
--- pyport.h 6 Jan 2003 12:41:24 -0000 2.58
+++ pyport.h 30 Jan 2003 13:03:27 -0000
@@ -429,12 +429,12 @@ and both these use __declspec()
# else /* Py_BUILD_CORE */
/* Building an extension module, or an embedded situation */
/* public Python functions and data are imported */
- /* Under Cygwin, auto-import functions to prevent compilation */
- /* failures similar to http://python.org/doc/FAQ.html#3.24 */
+ /* Under Cygwin, use auto-import to prevent compilation errors */
+ /* similar to http://python.org/doc/FAQ.html#3.24 */
# if !defined(__CYGWIN__)
# define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE
+# define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE
# endif /* !__CYGWIN__ */
-# define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE
/* module init functions outside the core must be exported */
# if defined(__cplusplus)
# define PyMODINIT_FUNC extern "C" __declspec(dllexport) void
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