gnu: Add ncurses-with-gpm.

* gnu/packages/linux.scm (ncurses/gpm): New variable.

gnu/packages/linux.scm

@@ -3013,6 +3013,18 @@ applications running on the Linux console.  It allows users to select items
 and copy/paste text in the console and in xterm.")
     (license license:gpl2+)))
 
+(define-public ncurses/gpm
+  (package/inherit ncurses
+    (name "ncurses-with-gpm")
+    (arguments
+        (substitute-keyword-arguments (package-arguments ncurses)
+         ((#:configure-flags cf)
+          `(cons (string-append "--with-gpm="
+                                (assoc-ref %build-inputs "gpm")
+                                "/lib/libgpm.so.2") ,cf))))
+    (inputs
+     `(("gpm" ,gpm)))))
+
 (define-public btrfs-progs
   (package
     (name "btrfs-progs")