--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -, +, @@ 
--- a/thumbnail/CMakeLists.txt
+++ b/thumbnail/CMakeLists.txt
@@ -21,13 +21,19 @@ 
     PURPOSE "Provides support for AppImage thumbnails"
 )
 
-find_package(X11)
-set_package_properties(X11 PROPERTIES
-    DESCRIPTION "X11 libraries"
-    URL "https://www.x.org"
-    TYPE OPTIONAL
-    PURPOSE "Provides support for XCursor thumbnails"
-)
+option(WITH_X11 "Build with X11 integration" ON)
+if (WITH_X11)
+    find_package(X11 REQUIRED)
+    set(HAVE_X11 TRUE)
+    set_package_properties(X11 PROPERTIES
+        DESCRIPTION "X11 libraries"
+        URL "https://www.x.org"
+        TYPE OPTIONAL
+        PURPOSE "Provides support for XCursor thumbnails"
+    )
+else()
+    set(WITH_X11 OFF)
+endif()
 
 find_package(Taglib 1.11)
 set_package_properties(Taglib PROPERTIES