--- a/Cargo.toml
+++ b/Cargo.toml
@@ -78,8 +78,8 @@
-zlib-ng = [
-    "any_zlib",
-    "libz-ng-sys",
-]
-zlib-ng-compat = [
-    "zlib",
-    "libz-sys/zlib-ng",
-]
+#zlib-ng = [
+#    "any_zlib",
+#    "libz-ng-sys",
+#]
+#zlib-ng-compat = [
+#    "zlib",
+#    "libz-sys/zlib-ng",
+#]
@@ -210 +210 @@
-[dependencies.libz-ng-sys]
+[disabled.dependencies.libz-ng-sys]