[bug#54933] [patch] Add Liquid War 6

[zamfofex <zamfofex@twdb.moe>]

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diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index de398c297f..8765f70761 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -70,6 +70,7 @@
 ;;; Copyright © 2021 Foo Chuan Wei <chuanwei.foo@hotmail.com>
 ;;; Copyright © 2022 Yovan Naumovski <yovan@gorski.stream>
 ;;; Copyright © 2022 Roman Riabenko <roman@riabenko.com>
+;;; Copyright © 2022 zamfofex <zamfofex@twdb.moe>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -140,6 +141,7 @@ (define-module (gnu packages games)
   #:use-module (gnu packages golang)
   #:use-module (gnu packages gperf)
   #:use-module (gnu packages graphics)
+  #:use-module (gnu packages graphviz)
   #:use-module (gnu packages gsasl)
   #:use-module (gnu packages gstreamer)
   #:use-module (gnu packages gtk)
@@ -12647,3 +12649,35 @@ (define-public fheroes2
 Magic II (aka HOMM2) game engine.  It requires assets and game resources to
 play; it will look for them at @file{~/.local/share/fheroes2} folder.")
     (license license:gpl2)))
+
+(define-public liquidwar6
+  (package
+    (name "liquidwar6")
+    (version "0.6.3902")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append "mirror://gnu/liquidwar6/"
+                            "liquidwar6-" version ".tar.gz"))
+        (sha256
+         (base32 "1976nnl83d8wspjhb5d5ivdvdxgb8lp34wp54jal60z4zad581fn"))))
+    (inputs
+      (list guile-2.0 zlib expat sqlite ncurses readline curl doxygen python-2
+            libxslt perl graphviz glu libcaca
+            (sdl-union (list sdl sdl-image sdl-ttf sdl-mixer))))
+    (build-system gnu-build-system)
+    (arguments
+      '(#:configure-flags
+         (list
+           "--enable-allinone"
+           "CFLAGS=-Wno-error"
+           (string-append "CPPFLAGS="
+             "-I" (search-input-directory %build-inputs "include/SDL")))))
+    (synopsis "Liquid War 6 is a unique multiplayer wargame.")
+    (description
+      (string-append
+        "Liquid War 6 is a unique multiplayer wargame. Your army is a blob of "
+        "liquid and you have to try and eat your opponents. Rules are very "
+        "simple yet original, they have been invented by Thomas Colcombet."))
+    (home-page "https://www.gnu.org/software/liquidwar6/")
+    (license license:gpl3+)))