PKG_CHECK_MODULES([X11], [x11])
PKG_CHECK_MODULES([XEXT], [xext])
PKG_CHECK_MODULES([DRM], [libdrm])
+PKG_CHECK_MODULES([XV], [xv]) #neccessary, orelse segment fault when XCloseDisplay
PKG_CHECK_MODULES(LIBDRM_DEPS, [libdrm])
# We only need the headers, we don't link against the DRM libraries