--- gcc/config/x-apollo68	2018/04/24 17:51:37	1.1.1.1
+++ gcc/config/x-apollo68	2018/04/24 17:59:57	1.1.1.2
@@ -1,4 +1,17 @@
+# x-apollo68 -- 680x0 based Apollos as host system
+
 # vasta@apollo.com says this is how to compile on an Apollo (SR10.x).
 # Use a Berkeley environment.
 CC=cc -g -A nansi -A cpu,3000 -A runtype,bsd4.3 -A systype,any -DSHORT_ENUM_BUG
 OLDCC=cc -g -A nansi -A cpu,3000 -A runtype,bsd4.3 -A systype,any -DSHORT_ENUM_BUG
+
+# Makefile.in has debugging turned on:
+#
+#    CFLAGS = -g
+#    LIBGCC2_CFLAGS = -O2 $(GCC_CFLAGS) -g1
+#
+# but that's not supported on the Apollo yet, so we'd better avoid
+# the warnings.
+
+CFLAGS =
+LIBGCC2_CFLAGS = -O2 $(GCC_CFLAGS)