# This trick should define gnulib_orderonly to | iff we're using GNU make.
gnulib_make_features = $(.FEATURES)
-gnulib_have_orderonly = $(findstring order-only,$(gnulib_make_features))
+gnulib_have_orderonly = $(findstring order-only,${gnulib_make_features})
gnulib_orderonly = $(gnulib_have_orderonly:order-only=|)
gnulib_core_headers =
gnulib_raw_headers = $(gnulib_core_headers)
AC_SUBST([GLSRC], [lib])
AC_CONFIG_LIBOBJ_DIR([lib])
-AC_DEFUN_ONCE([DX_GLSYM_PREFIX], [dnl
-AC_REQUIRE([DX_EXPORTED_SH])
+AC_DEFUN_ONCE([DX_GLSYM_PREFIX],
+[AC_REQUIRE([DX_AUTOMAKE_COMPAT])AC_REQUIRE([DX_EXPORTED_SH])
AC_SUBST([GLSYM_PREFIX], [$1])
])
EOF