diff --git a/gcc/config/pdp11/t-pdp11 b/gcc/config/pdp11/t-pdp11
new file mode 100644
index 00000000000..ebcdbb3a352
--- /dev/null
+++ b/gcc/config/pdp11/t-pdp11
@@ -0,0 +1,8 @@
+LIBGCC1 = libgcc1.null
+CROSS_LIBGCC1 = libgcc1.null
+
+# forget the libgcc1...
+LIBGCC1_TEST =
+
+TARGET_LIBGCC2_CFLAGS = -O2 -mfloat32
+#LIB2FUNCS_EXTRA =