-extern struct output_format output_text_bits;
-extern struct output_format output_text_hex;
-extern struct output_format output_text_ascii;
-extern struct output_format output_binary;
-extern struct output_format output_vcd;
-extern struct output_format output_ols;
-extern struct output_format output_gnuplot;
-extern struct output_format output_analog_bits;
+extern struct sr_output_format output_text_bits;
+extern struct sr_output_format output_text_hex;
+extern struct sr_output_format output_text_ascii;
+extern struct sr_output_format output_binary;
+extern struct sr_output_format output_vcd;
+extern struct sr_output_format output_ols;
+extern struct sr_output_format output_gnuplot;
+/* extern struct sr_output_format output_analog_bits; */
+/* extern struct sr_output_format output_analog_gnuplot; */