diff --git a/emu/.gitignore b/emu/.gitignore
new file mode 100644
index 0000000..c28dc7c
--- /dev/null
+++ b/emu/.gitignore
@@ -0,0 +1 @@
+pdp6
diff --git a/emu/Makefile b/emu/Makefile
index 19abbb2..37b9d06 100644
--- a/emu/Makefile
+++ b/emu/Makefile
@@ -3,7 +3,8 @@ H=pdp6.h ../tools/pdp6common.h threading.h
 # clang
 #CFLAGS= -Wno-shift-op-parentheses -Wno-logical-op-parentheses \
 #        -Wno-bitwise-op-parentheses
-CFLAGS= -g -O3 -Wall -Wno-parentheses -fno-diagnostics-show-caret
+#GCCFLAGS=-fno-diagnostics-show-caret
+CFLAGS= -g -O3 -Wall -Wno-parentheses $(GCCFLAGS)
 #CFLAGS= -g -Wall -Wno-parentheses -fno-diagnostics-show-caret
 SDLFLAGS=`sdl2-config --cflags` `pkg-config SDL2_image --cflags` -DGRAPHICS
 
diff --git a/emu/netcons.c b/emu/netcons.c
index 9664d5a..da998fe 100644
--- a/emu/netcons.c
+++ b/emu/netcons.c
@@ -139,13 +139,6 @@ netconscycle(void *dev)
 		break;
 	}
 	return;
-err:
-	printf("error address %o\n", a);
-	nc->buf[0] = 1;
-	nc->buf[1] = 1;
-	nc->buf[2] = ERR;
-	writen(nc->fd, nc->buf, nc->buf[0]+2);
-	return;
 }
 
 Device*