diff -Naur ../zlib-1.2.8-org/win32/Makefile.gcc ./win32/Makefile.gcc
--- ../zlib-1.2.8-org/win32/Makefile.gcc	2008-10-23 17:44:36.000000000 +0000
+++ ./win32/Makefile.gcc	2015-12-06 19:20:00.449471787 +0000
@@ -37,6 +37,6 @@
 # Set to 1 if shared object needs to be installed
 #
-SHARED_MODE=0
+SHARED_MODE=1

 #LOC = -DASMV