diff -r 4a80c6053a66 -r 783eff3047bc test/harness/loupe-test.c
--- a/test/harness/loupe-test.c	Mon Jan 30 23:32:47 2012 +0000
+++ b/test/harness/loupe-test.c	Sat Oct 05 21:37:31 2013 +0100
@@ -6,6 +6,14 @@
 #include "testcase.h"
 #include "testcaseio.h"
 
+static gboolean show_output;
+
+static GOptionEntry options[]={
+    { "show-output", 'o', 0, G_OPTION_ARG_NONE, &show_output,
+      "Show bookloupe output", NULL },
+    { NULL }
+};
+
 /*
  * Returns FALSE if the test should be considered to have failed.
  * (returns TRUE on pass or expected-fail).
@@ -17,7 +25,10 @@
     testcase=testcase_parse_file(filename);
     if (!testcase)
 	return FALSE;
-    retval=testcase_run(testcase);
+    if (show_output)
+	retval=testcase_show_output(testcase);
+    else
+	retval=testcase_run(testcase);
     testcase_free(testcase);
     return retval;
 }
@@ -26,6 +37,16 @@
 {
     int i;
     gboolean pass=TRUE;
+    GError *err=NULL;
+    GOptionContext *context;
+    context=g_option_context_new("file - run a bookloupe testcase");
+    g_option_context_add_main_entries(context,options,NULL);
+    if (!g_option_context_parse(context,&argc,&argv,&err))
+    {
+	g_printerr("loupe-test: %s\n",err->message);
+	g_printerr("Use \"%s --help\" for help\n",argv[0]);
+	exit(1);
+    }
     bl_set_print_handlers();
     for(i=1;i<argc;i++)
 	pass&=run_test(argv[i]);