From 615b731783311af2564573a98e59739a281f8f91 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 18 Nov 2022 09:10:22 +0100
Subject: CMake+Wayland: check for presence of required software  modules
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Also, remove hardcoded path to wayland-protocols when
CMake version ≥ 3.4
---
 src/CMakeLists.txt | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index edb3f54c0..b8b773d53 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -624,11 +624,15 @@ if (USE_XFT)
 endif (USE_XFT)
 
 if (UNIX AND OPTION_USE_WAYLAND)
-  if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
-    set(PROTOCOLS /usr/local/share/wayland-protocols)
-  else ()
-    set(PROTOCOLS /usr/share/wayland-protocols)
-  endif (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
+  if (NOT (CMAKE_VERSION VERSION_LESS 3.4))
+    pkg_get_variable(PROTOCOLS wayland-protocols pkgdatadir) # requires cmake 3.4
+  else()
+    if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
+      set(PROTOCOLS /usr/local/share/wayland-protocols)
+    else ()
+      set(PROTOCOLS /usr/share/wayland-protocols)
+    endif (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "FreeBSD")
+  endif (NOT (CMAKE_VERSION VERSION_LESS 3.4))
   add_custom_command(
     OUTPUT xdg-shell-protocol.c xdg-shell-client-protocol.h
     COMMAND wayland-scanner private-code ${PROTOCOLS}/stable/xdg-shell/xdg-shell.xml xdg-shell-protocol.c
-- 
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