gnu: Add rust-miniz-oxide.

* gnu/packages/crates-io.scm (rust-miniz-oxide): New variable.

gnu/packages/crates-io.scm

@@ -1272,6 +1272,37 @@ file IO.")
     (license (list license:asl2.0
                    license:expat))))
 
+(define-public rust-miniz-oxide
+  (package
+    (name "rust-miniz-oxide")
+    (version "0.3.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "miniz_oxide" version))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "041s41l5w7z8pkp93pdzn8rngxr93q4wxp034pr0cvc7bgway23i"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-adler32" ,rust-adler32))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-tests
+           (lambda _
+             (substitute* "tests/test.rs"
+               (("../miniz/miniz.c") "Cargo.toml"))
+             #t)))))
+    (home-page  "https://github.com/Frommi/miniz_oxide/tree/master/miniz_oxide")
+    (synopsis "Pure rust replacement for the miniz DEFLATE/zlib encoder/decoder")
+    (description
+     "A pure rust replacement for the miniz DEFLATE/zlib encoder/decoder.  Using
+@code{flate2} with the @code{rust_backend} feature provides an easy to use
+streaming API for miniz_oxide.")
+    (license license:expat)))
+
 (define-public rust-modifier
   (package
     (name "rust-modifier")