gnu: Add julia-expronicon.

* gnu/packages/julia-xyz.scm (julia-expronicon): New variable.

gnu/packages/julia-xyz.scm

@@ -1347,6 +1347,40 @@ (define-public julia-example
       (description "This package provides various examples.")
       (license license:expat))))
 
+;; ExproniconLite.jl is autogenerated from this package.
+(define-public julia-expronicon
+  (package
+    (name "julia-expronicon")
+    (version "0.6.10")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+               (url "https://github.com/Roger-luo/Expronicon.jl")
+               (commit (string-append "v" version))))
+        (file-name (git-file-name name version))
+        (sha256
+         (base32 "0h8aaynqlxrkn8575k5vqmhzil4vvxchhf0bcxa6zwawp558gj2y"))))
+    (build-system julia-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'skip-network-tests
+           (lambda _
+             (substitute* "test/runtests.jl"
+               ;; This test tries to access the Julia package registry.
+               ((".*expand\\.jl.*") "")))))))
+    (propagated-inputs
+     `(("julia-mlstyle" ,julia-mlstyle)))
+    (native-inputs
+     `(("julia-documenter" ,julia-documenter)))
+    (home-page "https://expronicon.rogerluo.dev/dev/")
+    (synopsis "Collective tools for metaprogramming on Julia Expr")
+    (description "This package provides a collection of tools for
+metaprogramming on Julia Expr, the meta programming standard library for
+@code{MLStyle}.")
+    (license license:expat)))
+
 (define-public julia-exprtools
   (package
     (name "julia-exprtools")