1 files changed, 16 insertions, 3 deletions

diff --git a/cmake/platform/linux/x11.cmake b/cmake/platform/linux/x11.cmake
index 72d9640..5d7f3d4 100644
--- a/cmake/platform/linux/x11.cmake
+++ b/cmake/platform/linux/x11.cmake
@@ -1,4 +1,17 @@
-set(PLATFORM_REQUIRED_DEPS OpenGl EGL X XRandR LibDRM)
-set(PLATFORM_OPTIONAL_DEPS VAAPI VDPAU GLX)
-set(APP_RENDER_SYSTEM gl)
+set(PLATFORM_REQUIRED_DEPS EGL X XRandR LibDRM)
+set(PLATFORM_OPTIONAL_DEPS VAAPI)
+
+set(X11_RENDER_SYSTEM "" CACHE STRING "Render system to use with X11: \"gl\" or \"gles\"")
+
+if(X11_RENDER_SYSTEM STREQUAL "gl")
+  list(APPEND PLATFORM_REQUIRED_DEPS OpenGl)
+  list(APPEND PLATFORM_OPTIONAL_DEPS GLX VDPAU)
+  set(APP_RENDER_SYSTEM gl)
+elseif(X11_RENDER_SYSTEM STREQUAL "gles")
+  list(APPEND PLATFORM_REQUIRED_DEPS OpenGLES)
+  set(APP_RENDER_SYSTEM gles)
+else()
+  message(SEND_ERROR "You need to decide whether you want to use GL- or GLES-based rendering in combination with the X11 windowing system. Please set X11_RENDER_SYSTEM to either \"gl\" or \"gles\". For normal desktop systems, you will usually want to use \"gl\".")
+endif()
+
 list(APPEND PLATFORM_DEFINES -DPLATFORM_SETTINGS_FILE=x11.xml)
\ No newline at end of file