diff --git a/Libraries/zlib/files/variants b/Libraries/zlib/files/variants
deleted file mode 100644
index de4b821..0000000
--- a/Libraries/zlib/files/variants
+++ /dev/null
@@ -1 +0,0 @@
-zlib/1.2.11	unstable
diff --git a/Libraries/zlib/files/variants.macos10.14 b/Libraries/zlib/files/variants.macos10.14
new file mode 100644
index 0000000..547fb5e
--- /dev/null
+++ b/Libraries/zlib/files/variants.macos10.14
@@ -0,0 +1 @@
+zlib/1.2.11	stable
diff --git a/Libraries/zlib/files/variants.rhel6 b/Libraries/zlib/files/variants.rhel6
new file mode 100644
index 0000000..547fb5e
--- /dev/null
+++ b/Libraries/zlib/files/variants.rhel6
@@ -0,0 +1 @@
+zlib/1.2.11	stable