gnu: Add rust-bindgen-0.54.

* gnu/packages/crates-io.scm (rust-bindgen-0.54): New variable.
(rust-bindgen-0.53): Inherit from rust-bindgen-0.54.

gnu/packages/crates-io.scm

@@ -1326,10 +1326,10 @@ (define-public rust-bincode-1
 that uses Serde for transforming structs into bytes and vice versa!")
     (license license:expat)))
 
-(define-public rust-bindgen-0.53
+(define-public rust-bindgen-0.54
   (package
     (name "rust-bindgen")
-    (version "0.53.3")
+    (version "0.54.1")
     (source
       (origin
         (method url-fetch)
@@ -1338,10 +1338,11 @@ (define-public rust-bindgen-0.53
          (string-append name "-" version ".tar.gz"))
         (sha256
          (base32
-          "1rc9grfd25bk5b2acmqljhx55ndbzmh7w8b3x6q707cb4s6rfan7"))))
+          "0dn7dlwa0abjlqbl2kvwfdy6k6kgcqg6ixcjmk6pc3dpps09pm7l"))))
     (build-system cargo-build-system)
     (arguments
-     `(#:cargo-inputs
+     `(#:tests? #f  ; not all test files included
+       #:cargo-inputs
        (("rust-bitflags" ,rust-bitflags-1)
         ("rust-cexpr" ,rust-cexpr-0.4)
         ("rust-cfg-if" ,rust-cfg-if-0.1)
@@ -1379,6 +1380,51 @@ (define-public rust-bindgen-0.53
      "Automatically generates Rust FFI bindings to C and C++ libraries.")
     (license license:bsd-3)))
 
+(define-public rust-bindgen-0.53
+  (package
+    (inherit rust-bindgen-0.54)
+    (name "rust-bindgen")
+    (version "0.53.3")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "bindgen" version))
+        (file-name
+         (string-append name "-" version ".tar.gz"))
+        (sha256
+         (base32
+          "1rc9grfd25bk5b2acmqljhx55ndbzmh7w8b3x6q707cb4s6rfan7"))))
+    (arguments
+     `(#:cargo-inputs
+       (("rust-bitflags" ,rust-bitflags-1)
+        ("rust-cexpr" ,rust-cexpr-0.4)
+        ("rust-cfg-if" ,rust-cfg-if-0.1)
+        ("rust-clang-sys" ,rust-clang-sys-0.29)
+        ("rust-clap" ,rust-clap-2)
+        ("rust-env-logger" ,rust-env-logger-0.7)
+        ("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-lazycell" ,rust-lazycell-1.2)
+        ("rust-log" ,rust-log-0.4)
+        ("rust-peeking-take-while" ,rust-peeking-take-while-0.1)
+        ("rust-proc-macro2" ,rust-proc-macro2-1.0)
+        ("rust-quote" ,rust-quote-1.0)
+        ("rust-regex" ,rust-regex-1)
+        ("rust-rustc-hash" ,rust-rustc-hash-1.1)
+        ("rust-shlex" ,rust-shlex-0.1)
+        ("rust-which" ,rust-which-3.1))
+       #:cargo-development-inputs
+       (("rust-clap" ,rust-clap-2)
+        ("rust-diff" ,rust-diff-0.1)
+        ("rust-shlex" ,rust-shlex-0.1))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'set-environmental-variable
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((clang (assoc-ref inputs "libclang")))
+               (setenv "LIBCLANG_PATH"
+                       (string-append clang "/lib")))
+             #t)))))))
+
 (define-public rust-bindgen-0.52
   (package
     (inherit rust-bindgen-0.53)