From bc587b89d82c802760f1db72746944d4df60bb67 Mon Sep 17 00:00:00 2001
From: Karol Kosek <krkk@serenityos.org>
Date: Thu, 22 Dec 2022 18:30:20 +0100
Subject: [PATCH] CMake: Don't require to install glapi.h to system

This failed when a current build configuration hadn't got any program
depending on LibGL.
---
 Meta/CMake/libgl_generators.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Meta/CMake/libgl_generators.cmake b/Meta/CMake/libgl_generators.cmake
index f9b73838d4..606a12dc10 100644
--- a/Meta/CMake/libgl_generators.cmake
+++ b/Meta/CMake/libgl_generators.cmake
@@ -10,5 +10,5 @@ function (generate_libgl_implementation)
         arguments -j "${LIBGL_INPUT_FOLDER}/GLAPI.json"
     )
 
-    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/GL/glapi.h" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/LibGL/GL/")
+    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/GL/glapi.h" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/LibGL/GL/" OPTIONAL)
 endfunction()