'struct dd_function_table' only conditionally contains
the function pointer NewFramebuffer and friends based on
FEATURE_EXT_framebuffer_* defines. (See src/mesa/main/dd.h)
Fixes the build when the features are disabled and the vfuncs
don't exist.
void st_init_fbo_functions(struct dd_function_table *functions)
{
+#if FEATURE_EXT_framebuffer_object
functions->NewFramebuffer = st_new_framebuffer;
functions->NewRenderbuffer = st_new_renderbuffer;
functions->BindFramebuffer = st_bind_framebuffer;
functions->RenderTexture = st_render_texture;
functions->FinishRenderTexture = st_finish_render_texture;
functions->ValidateFramebuffer = st_validate_framebuffer;
+#endif
/* no longer needed by core Mesa, drivers handle resizes...
functions->ResizeBuffers = st_resize_buffers;
*/