+
+AC_ARG_ENABLE([gallium-egl],
+ [AS_HELP_STRING([--enable-gallium-egl],
+ [enable gallium EGL state tracker @<:@default=auto@:>@])],
+ [enable_gallium_egl="$enableval"],
+ [enable_gallium_egl=auto])
+if test "x$enable_gallium_egl" = xauto; then
+ case "$mesa_driver" in
+ dri|no)
+ enable_gallium_egl=$enable_egl
+ ;;
+ *)
+ enable_gallium_egl=$enable_openvg
+ ;;
+ esac
+fi
+case "x$enable_egl$enable_gallium_egl" in
+xnoyes)
+ AC_MSG_ERROR([cannot build Gallium EGL state tracker without EGL])
+esac
+