ambrevar: Patch magicffi to support wildcards.

.local/share/common-lisp/source/ambrevar/ambrevar.asd

@@ -2,4 +2,5 @@
 
 (defsystem "ambrevar"
   :class :package-inferred-system
-  :depends-on ("ambrevar/all"))
+  :depends-on ("ambrevar/all")
+  :components ((:file "patch-magicffi")))

.local/share/common-lisp/source/ambrevar/patch-magicffi.lisp

@@ -0,0 +1,18 @@
+(in-package :magicffi)
+
+(defun path-string (path)
+  (uiop:unix-namestring
+   (uiop:truename* (if (pathnamep path)
+                       path
+                       (uiop:parse-native-namestring path)))))
+
+;; Original function uses %truename which fails on wildcards.
+(defun magic-file (magic pathspec)
+  "Returns a textual description of the contents of the PATHSPEC
+argument.  PATHSPEC is a pathname designator.  An error of type
+MAGIC-ERROR is signaled on failure."
+  (or (foreign-funcall "magic_file"
+                       cmagic magic
+                       :string (path-string pathspec)
+                       :string)
+      (magic-error magic)))