From 7217783db5e04297af929868d8f115d5b579aceb Mon Sep 17 00:00:00 2001
From: Raghav Gururajan <rg@raghavgururajan.name>
Date: Thu, 21 Jan 2021 19:23:02 -0500
Subject: [PATCH 13/18] gnu: Add tg-rlottie.

* gnu/packages/telegram.scm (tg-rlottie): New variable.
---
 gnu/packages/telegram.scm | 47 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/telegram.scm b/gnu/packages/telegram.scm
index 0fd47f4f5d..e518a8dcd3 100644
--- a/gnu/packages/telegram.scm
+++ b/gnu/packages/telegram.scm
@@ -19,6 +19,7 @@
 (define-module (gnu packages telegram)
   #:use-module (gnu packages)
   #:use-module (gnu packages assembly)
+  #:use-module (gnu packages check)
   #:use-module (gnu packages image)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages pkg-config)
@@ -31,7 +32,8 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix git-download)
-  #:use-module (guix build-system cmake))
+  #:use-module (guix build-system cmake)
+  #:use-module (guix build-system meson))
 
 (define-public tg-owt
   (let ((commit "fa86fcc00c218813d61a272a56feab55c76a1ab9")
@@ -141,3 +143,46 @@ for its use in telegram desktop client.")
         license:gpl3
         ;; LibSRTP, LibVPx, UsrSCTP and Others
         license:bsd-3)))))
+
+(define-public tg-rlottie
+  (let ((commit "cbd43984ebdf783e94c8303c41385bf82aa36d5b")
+        (revision "1"))
+    (package
+      (name "tg-rlottie")
+      (version
+       (git-version "0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri
+          (git-reference
+           (url "https://github.com/desktop-app/rlottie.git")
+           (commit commit)))
+         (file-name
+          (git-file-name name version))
+         (sha256
+          (base32 "1lxpbgbhps9rmck036mgmiknqrzpjxpas8n7qxykv6pwzn0c8n0c"))))
+      (build-system meson-build-system)
+      (arguments
+       `(#:configure-flags
+         (list
+          "-Dlog=true"
+          "-Ddumptree=true"
+          "-Dtest=true")
+         #:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'patch-cxx-flags
+             (lambda _
+               (substitute* "meson.build"
+                 (("werror=true")
+                  "werror=false"))
+               #t)))))
+      (native-inputs
+       `(("googletest" ,googletest)
+         ("pkg-config" ,pkg-config)))
+      (synopsis "Lottie Animation Library for Telegram-Desktop")
+      (description "TG-Rlottie is a custom fork of rlottie, modified for its use
+in telegram-desktop.  Rlottie is a platform independent standalone c++ library
+for rendering vector based animations and art in realtime.")
+      (home-page "https://github.com/desktop-app/rlottie")
+      (license license:expat))))
-- 
2.30.0