From 5f0987d4ed9541786e9348d57e06b12897885f99 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 19 Jun 2026 10:54:58 +0200
Subject: [PATCH] Restore building for Wayland with early Linux versions
 without the tablet-v2.xml protocol file

---
 CMake/options.cmake | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMake/options.cmake b/CMake/options.cmake
index b68b3c7b8..e06b21d01 100644
--- a/CMake/options.cmake
+++ b/CMake/options.cmake
@@ -516,7 +516,12 @@ if(FLTK_OPTION_PEN_SUPPORT)
     else()
       set(FLTK_HAVE_PEN_SUPPORT 0)
     endif()
-  else(WIN32) # all other platforms
+  elseif(FLTK_USE_WAYLAND)
+    pkg_get_variable(PROTOCOLS wayland-protocols pkgdatadir)
+    if(EXISTS ${PROTOCOLS}/stable/tablet/tablet-v2.xml)
+      set(FLTK_HAVE_PEN_SUPPORT 1)
+    endif()
+  else() # all other platforms
     set(FLTK_HAVE_PEN_SUPPORT 1)
   endif(WIN32)