diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6b5897c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+SOURCES/libz-sys-1.1.12.crate
diff --git a/.rust-libz-sys.metadata b/.rust-libz-sys.metadata
index e69de29..5e76454 100644
--- a/.rust-libz-sys.metadata
+++ b/.rust-libz-sys.metadata
@@ -0,0 +1 @@
+cbd461352b53bf636246166891a87769bd1e0030  SOURCES/libz-sys-1.1.12.crate
diff --git a/SOURCES/libz-sys-1.1.12.crate b/SOURCES/libz-sys-1.1.12.crate
deleted file mode 100644
index 8081538..0000000
Binary files a/SOURCES/libz-sys-1.1.12.crate and /dev/null differ
diff --git a/SOURCES/rust2rpm.conf b/SOURCES/rust2rpm.conf
new file mode 100644
index 0000000..c2ea5c0
--- /dev/null
+++ b/SOURCES/rust2rpm.conf
@@ -0,0 +1,5 @@
+[DEFAULT]
+buildrequires =
+  pkgconfig(zlib)
+lib.requires =
+  pkgconfig(zlib)