Be more liberal regarding zlib(_a).lib

Extensions requiring zlib are looking only for zlib.lib if ext/zlib has
been built as shared extension.  This is overly restrictive at best,
and actually makes no sense, since (a) we're not shipping shared zlib
builds for years, and (b) users could have a zlib.lib which is a static
build (they could even just rename zlib_a.lib to zlib.lib).

Author: cmb69

win32/build/confutils.js

@@ -3629,7 +3629,7 @@ function ADD_MAKEFILE_FRAGMENT(src_file)
 function SETUP_ZLIB_LIB(target, path_to_check)
 {
 	return ((PHP_ZLIB=="no") && (CHECK_LIB("zlib_a.lib;zlib.lib", target, path_to_check))) ||
-		(PHP_ZLIB_SHARED && CHECK_LIB("zlib.lib", target, path_to_check)) ||
+		(PHP_ZLIB_SHARED && CHECK_LIB("zlib_a.lib;zlib.lib", target, path_to_check)) ||
 		(PHP_ZLIB == "yes" && (!PHP_ZLIB_SHARED));
 }