From c82165cb074b39b63f3e0d873902d76fc4615292 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Mon, 9 Dec 2024 09:21:24 +0100
Subject: No need to link to libgtk when using package libdecor-0-dev

---
 CMake/options.cmake | 4 ++--
 README.CMake.txt    | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CMake/options.cmake b/CMake/options.cmake
index cabdf4e6b..eac34b9e6 100644
--- a/CMake/options.cmake
+++ b/CMake/options.cmake
@@ -970,7 +970,7 @@ endif((X11_Xft_FOUND OR NOT USE_PANGOXFT) AND FLTK_USE_PANGO)
 if(FLTK_BACKEND_WAYLAND)
 
   # Note: Disable FLTK_USE_LIBDECOR_GTK to get cairo titlebars rather than GTK
-  if(FLTK_USE_LIBDECOR_GTK)
+  if(FLTK_USE_LIBDECOR_GTK AND NOT USE_SYSTEM_LIBDECOR)
     pkg_check_modules(GTK IMPORTED_TARGET gtk+-3.0)
     if(GTK_FOUND)
       list(APPEND FLTK_BUILD_INCLUDE_DIRECTORIES ${GTK_INCLUDE_DIRS})
@@ -978,7 +978,7 @@ if(FLTK_BACKEND_WAYLAND)
       message(WARNING "Installation of the development files for the GTK library "
       "(e.g., libgtk-3-dev) is recommended when using the gnome desktop.")
     endif(GTK_FOUND)
-  endif(FLTK_USE_LIBDECOR_GTK)
+  endif(FLTK_USE_LIBDECOR_GTK AND NOT USE_SYSTEM_LIBDECOR)
 
 endif()
 
diff --git a/README.CMake.txt b/README.CMake.txt
index cc96899c0..7d260b31a 100644
--- a/README.CMake.txt
+++ b/README.CMake.txt
@@ -260,9 +260,9 @@ FLTK_OPTION_SVG - default ON
     Turning this option off disables SVG (read and write) support.
 
 FLTK_USE_LIBDECOR_GTK - default ON (Wayland only).
-    Allow to use libdecor's GTK plugin to draw window titlebars. Otherwise
-    FLTK does not use GTK and apps will not need linking to GTK. This feature
-    is always 'ON' if FLTK_USE_SYSTEM_LIBDECOR is 'ON'.
+    Meaningful only under Wayland and if FLTK_USE_SYSTEM_LIBDECOR is 'OFF'.
+    Allows to use libdecor's GTK plugin to draw window titlebars. Otherwise
+    FLTK does not use GTK and apps will not need linking to GTK.
 
 FLTK_USE_PANGO - default OFF (see note below)
     This option is highly recommended under X11 if FLTK is expected to draw
-- 
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