cmake: nx toolchain has FindOpenGL module

src/CMakeLists.txt

@@ -149,16 +149,6 @@ set_target_properties(librw
 )
 
 if(LIBRW_PLATFORM_GL3)
-    if(LIBRW_PLATFORM_GL3_REQUIRES_OPENGL)
-        set(OpenGL_GL_PREFERENCE GLVND)
-        find_package(OpenGL REQUIRED)
-
-        target_link_libraries(librw
-            PRIVATE
-                OpenGL::GL
-        )
-    endif()
-
     if (LIBRW_GL3_GFXLIB STREQUAL "GLFW")
         find_package(glfw3 REQUIRED)
         target_link_libraries(librw
@@ -174,12 +164,25 @@ if(LIBRW_PLATFORM_GL3)
         )
     endif()
 
-    if(NINTENDO_SWITCH)
-        find_package(NXGL REQUIRED)
+    set(OpenGL_GL_PREFERENCE GLVND)
+    find_package(OpenGL)
+    if(TARGET OpenGL::OpenGL)
         target_link_libraries(librw
             PRIVATE
-                NXGL::OpenGL
+                OpenGL::OpenGL
         )
+    elseif(TARGET OpenGL::EGL)
+        target_link_libraries(librw
+            PRIVATE
+                OpenGL::EGL
+        )
+    elseif(TARGET OpenGL::GL)
+        target_link_libraries(librw
+            PRIVATE
+                OpenGL::GL
+        )
+    else()
+        message(FATAL_ERROR "find_package(OpenGL) failed.")
     endif()
 elseif(LIBRW_PLATFORM_D3D9)
     target_link_libraries(librw