diff --git a/README.txt b/README.txt
index 5ab51e0bd..39a7068fd 100644
--- a/README.txt
+++ b/README.txt
@@ -63,7 +63,17 @@ with the commands:
   ./configure
   make
 
-2.3 Installation
+2.3 (Optional) Testing
+
+To run a simple test before installation, execute
+
+  make check
+
+The commands printed by this run might help you in running Icarus
+Verilog on your own verilog sources before the package is installed
+by root.
+
+2.4 Installation
 
 Now install the files in an appropriate place. (The makefiles by
 default install in /usr/local unless you specify a different prefix
diff --git a/driver/main.c b/driver/main.c
index 83b609a3a..b4a082ea9 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT)
-#ident "$Id: main.c,v 1.8 2001/02/01 17:12:22 steve Exp $"
+#ident "$Id: main.c,v 1.9 2001/04/26 16:04:39 steve Exp $"
 #endif
 
 const char HELP[] =
@@ -401,6 +401,10 @@ int main(int argc, char **argv)
 	      sprintf(path, "%s/iverilog.conf", base);
 	}
 	fd = fopen(path, "r");
+	if (fd == 0) {
+	      fprintf(stderr, "Config file \"%s\" not found\n",path);
+	      return 1;
+	}
 	reset_lexor(fd);
 	yyparse();
       }
@@ -520,6 +524,9 @@ int main(int argc, char **argv)
 
 /*
  * $Log: main.c,v $
+ * Revision 1.9  2001/04/26 16:04:39  steve
+ *  Handle missing or uninstalled .conf files.
+ *
  * Revision 1.8  2001/02/01 17:12:22  steve
  *  Forgot to actually allow the -p flag.
  *