From 95970b361960e5b8786eaa608d66f18b15d86efb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Sat, 7 Aug 2021 18:27:52 +0200
Subject: [PATCH] build: check if libinput supports hold gestures

Add a project argument (LIBINPUT_HAS_HOLD_GESTURES) to allow building
against old versions of libinput.
---
 backend/libinput/meson.build | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/backend/libinput/meson.build b/backend/libinput/meson.build
index 44bb57e1..38ba05f1 100644
--- a/backend/libinput/meson.build
+++ b/backend/libinput/meson.build
@@ -27,3 +27,9 @@ wlr_files += files(
 
 features += { 'libinput-backend': true }
 wlr_deps += libinput
+
+# libinput hold gestures are available since 1.19.0
+add_project_arguments(
+	'-DLIBINPUT_HAS_HOLD_GESTURES=@0@'.format(libinput.version().version_compare('>=1.19.0').to_int()),
+	language: 'c',
+)