Error while compilation with dispmanx

Hello I'm trying to build gst-plugins-base on my raspberry pi. But during compilation there is this error: error: unknown type name EGL_DISPMANX_WINDOW_T on the file gst-plugins-base/gst-libs/gst/gl/dispmanx/gstglwindow_dispmanx_egl.h:66 I know it is due to the raspberry pi but, have you any idea to solved that? Thank you