rosenthal: Add dropbear/static.

* rosenthal/packages/ssh.scm: New file.
(dropbear/static): New variable.

rosenthal/packages/ssh.scm

@@ -0,0 +1,26 @@
+;; SPDX-FileCopyrightText: 2022 Hilton Chain <hako@ultrarare.space>
+;;
+;; SPDX-License-Identifier: GPL-3.0-or-later
+
+(define-module (rosenthal packages ssh)
+  #:use-module (guix gexp)
+  #:use-module (guix packages)
+  #:use-module (guix utils)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages multiprecision)
+  #:use-module (gnu packages ssh))
+
+(define-public dropbear/static
+  (let ((base dropbear))
+    (package
+      (inherit dropbear)
+      (name "dropbear-static")
+      (arguments
+       (substitute-keyword-arguments (package-arguments base)
+         ((#:configure-flags flags)
+          #~(append #$flags (list "--enable-static")))))
+      (inputs
+       (modify-inputs (package-inputs base)
+         (append `(,zlib "static"))
+         (replace "libtomcrypt" `(,libtomcrypt "static"))
+         (replace "libtommath" `(,libtommath "static")))))))