diff --git a/Makefile b/Makefile
index 03b87c926..1600ed4e9 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ BUILDDIR = $(ACK_TEMP_DIR)/ack-build
 
 # What build flags do you want to use for native code?
 
-CFLAGS = -g -O -Wno-return-type
+CFLAGS = -g -Og -Wno-return-type
 LDFLAGS = 
 
 # Various commands.
diff --git a/build.lua b/build.lua
index 5ab18b45e..c95e3acf3 100644
--- a/build.lua
+++ b/build.lua
@@ -18,6 +18,7 @@ vars.plats = {
 	"pdpv7",
 }
 vars.plats_with_tests = {
+	"linux68k",
 	"linux386",
 	"linuxppc",
 	--"qemuppc",