Merge #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are now available on Windows.
diff --git a/Misc/NEWS b/Misc/NEWS
index ddd48c4..fd1e833 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -311,6 +311,9 @@
 Library
 -------
 
+- Issue #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are
+  now available on Windows.
+
 - issue #1673007: urllib2  to support HEAD request via new method argument.
   Patch contributions by David Stanek, Patrick Westerhoff and Ezio Melotti.
 
diff --git a/PC/pyconfig.h b/PC/pyconfig.h
index 983fa3d..347f1cc 100644
--- a/PC/pyconfig.h
+++ b/PC/pyconfig.h
@@ -644,6 +644,9 @@
 #define HAVE_WCSXFRM 1
 #endif
 
+/* Define if the zlib library has inflateCopy */
+#define HAVE_ZLIB_COPY 1
+
 /* Define if you have the <dlfcn.h> header file.  */
 /* #undef HAVE_DLFCN_H */