Compiling program with scene_rdl2

[shdwdln]

Hey guys, I am having some issues compiling a simple cpp program to read an RDL2 file.

I am following the example of:
#include <scene_rdl2/scene/rdl2/rdl2.h> SceneContext context; context.readSceneFromFile("myScene.rdla",context);
I am getting this error when it is building:

include/scene_rdl2/scene/rdl2/Types.h:499:22: error: expected ‘)’ before ‘*’ token 499 | typedef void (__cdecl * ShadeFunc)( const rdl2::Material* self, | ~ ^~

Any ideas what I am doing wrong here?
Thanks!
(I am on Rocky9.3, gcc11.4, and cmake3.23)