diff -rupN --no-dereference zlib-1.2.11/win32/zlib.def zlib-1.2.11-new/win32/zlib.def

--- zlib-1.2.11/win32/zlib.def	2017-01-01 08:37:10.000000000 +0100

+++ zlib-1.2.11-new/win32/zlib.def	2020-11-12 22:09:58.338508692 +0100

@@ -1,3 +1,4 @@

+LIBRARY zlib1.dll

 ; zlib data compression library

 EXPORTS

 ; basic functions