diff --git a/src/SFML/Window/CMakeLists.txt b/src/SFML/Window/CMakeLists.txt index 29555bb0..ed99a289 100644 --- a/src/SFML/Window/CMakeLists.txt +++ b/src/SFML/Window/CMakeLists.txt @@ -162,8 +162,15 @@ elseif(SFML_OS_ANDROID) endif() # find external libraries +if(SFML_OS_LINUX OR SFML_OS_FREEBSD) + find_package(X11 REQUIRED) + if(NOT X11_Xrandr_FOUND) + message(FATAL_ERROR "Xrandr library not found") + endif() + include_directories(${X11_INCLUDE_DIR}) +endif() if(NOT SFML_OPENGL_ES) - find_package(OpenGL REQUIRED) + find_package(OpenGL REQUIRED) include_directories(${OPENGL_INCLUDE_DIR}) if(SFML_OS_LINUX OR SFML_OS_FREEBSD) find_package(X11 REQUIRED)