disable top-level exception catching in debug mode.

src/arc.c

@@ -92,7 +92,9 @@ main (int argc, char **argv)
 {
   int result = 0;
 
-  /*  ccl_try(exception) */
+#ifdef CCL_ENABLE_ASSERTIONS
+  ccl_try(exception) 
+#endif /* CCL_ENABLE_ASSERTIONS */
     { 
       int has_display = (getenv("DISPLAY") != NULL);
       int filename_index;
@@ -139,7 +141,7 @@ main (int argc, char **argv)
 	}
       s_terminate_arc ();	   
     }
-  /*
+#ifdef CCL_ENABLE_ASSERTIONS
   ccl_catch
     {
       fprintf(stderr,"ARC termination on error : %s\n",
@@ -147,7 +149,7 @@ main (int argc, char **argv)
       result = 1;
     }
   ccl_end_try;
-  */
+#endif /* CCL_ENABLE_ASSERTIONS */
 
   return result;
 }