From 7d4c882abe1080b7bab622ac5c74749d67e0f903 Mon Sep 17 00:00:00 2001
From: Nicholas von Klitzing <nicholas@nvk.pm>
Date: Wed, 15 Dec 2021 23:48:33 +0100
Subject: [PATCH 23/29] gnu: Add rust-cfg-expr-0.8.

* gnu/packages/crates-gtk.scm (rust-cfg-expr-0.8): New variable.
---
 gnu/packages/crates-gtk.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/crates-gtk.scm b/gnu/packages/crates-gtk.scm
index 9c5b6ff10e..b33b209020 100644
--- a/gnu/packages/crates-gtk.scm
+++ b/gnu/packages/crates-gtk.scm
@@ -1463,6 +1463,30 @@ (define-public rust-target-lexicon-0.12
     (description "Targeting utilities for compilers and related tools")
     (license (list license:asl2.0))))
 
+(define-public rust-cfg-expr-0.8
+  (package
+    (name "rust-cfg-expr")
+    (version "0.8.1")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "cfg-expr" version))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32 "03lgv8psc2qrr93hxgdfmfwbj1crpzghxd7qh6w2nz0l4qryh4ml"))))
+    (build-system cargo-build-system)
+    (arguments
+      `(#:skip-build?
+        #t
+        #:cargo-inputs
+        (("rust-smallvec" ,rust-smallvec-1)
+         ("rust-target-lexicon" ,rust-target-lexicon-0.12))))
+    (home-page "https://github.com/EmbarkStudios/cfg-expr")
+    (synopsis "A parser and evaluator for Rust `cfg()` expressions.")
+    (description
+      "This package provides a parser and evaluator for Rust `cfg()` expressions.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-gtk-0.8
   (package
     (name "rust-gtk")
-- 
2.34.0