From 203e7b70985b269de64a5b855c0ed9f1c5dfffd9 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 9 Sep 2022 15:19:15 +0200
Subject: New OPTION_WAYLAND_ONLY for CMake to build pure Wayland platform.

---
 CMake/options.cmake | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'CMake')

diff --git a/CMake/options.cmake b/CMake/options.cmake
index e91d1c828..132f435a1 100644
--- a/CMake/options.cmake
+++ b/CMake/options.cmake
@@ -194,10 +194,18 @@ set (HAVE_LIBPNG 1)
 if (UNIX)
   option (OPTION_CREATE_LINKS "create backwards compatibility links" OFF)
   list (APPEND FLTK_LDLIBS -lm)
-  option (OPTION_USE_WAYLAND "use Wayland" OFF)
+  option (OPTION_USE_WAYLAND "support Wayland and X11 backends" OFF)
   if (OPTION_USE_WAYLAND)
+    option (OPTION_WAYLAND_ONLY "support Wayland backend only" OFF)
     set (FLTK_USE_WAYLAND 1)
-    set (FLTK_USE_X11 1) # to build a hybrid Wayland/X11 library
+    if (NOT OPTION_WAYLAND_ONLY)
+      include (FindX11)
+    endif (NOT OPTION_WAYLAND_ONLY)
+    if (X11_FOUND)
+      set (FLTK_USE_X11 1) # to build a hybrid Wayland/X11 library
+    else ()
+      set (FLTK_USE_X11 0) # to build a Wayland-only library
+    endif (X11_FOUND)
     unset (OPTION_USE_CAIRO CACHE)
     set (OPTION_USE_CAIRO TRUE CACHE BOOL "all drawing to X11 windows uses Cairo")
     option (OPTION_USE_SYSTEM_LIBDECOR "use libdecor from the system" OFF)
@@ -206,11 +214,13 @@ if (UNIX)
     unset (OPTION_USE_XFT CACHE)
     unset (OPTION_USE_XCURSOR CACHE)
     unset (OPTION_USE_XFIXES CACHE)
+    if (X11_FOUND)
       set (HAVE_XFIXES 1)
       set (HAVE_XRENDER 1)
       set (USE_XFT 1)
       set (HAVE_XCURSOR 1)
       set (HAVE_XINERAMA 1)
+    endif (X11_FOUND)
     unset (OPTION_USE_PANGO CACHE)
     set (OPTION_USE_PANGO TRUE CACHE BOOL "use lib Pango")
     if (OPTION_USE_SYSTEM_LIBDECOR)
-- 
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