Description: Fix FTBFS with clang
Bug-Debian: https://bugs.debian.org/686542

---

--- bwbasic-2.20pl2.orig/bwx_tty.c
+++ bwbasic-2.20pl2/bwx_tty.c
@@ -65,8 +65,8 @@ extern jmp_buf mark;
 
 ***************************************************************/
 
+int
 #if ANSI_C
-void
 main( int argc, char **argv )
 #else
 main( argc, argv )
@@ -92,7 +92,7 @@ main( argc, argv )
 
       bwx_terminate();			/* allow ^D (Unix) exit with grace */
 
-
+      return 0;
    }
 
 /***************************************************************