--- src/command.c.orig	2008-09-06 09:10:26.000000000 +0200
+++ src/command.c	2008-09-06 09:40:00.000000000 +0200
@@ -89,7 +89,7 @@
 # include <grp.h>
 #endif
 
-#if defined (__svr4__) || defined (__lnx21__)
+#if 0
 # include <sys/resource.h>	/* for struct rlimit */
 # include <sys/stropts.h>	/* for I_PUSH */
 # define _NEW_TTY_CTRL		/* to get proper defines in <termios.h> */
@@ -672,7 +672,7 @@
 	print_error("can't open slave tty %s", ttydev);
 	exit(EXIT_FAILURE);
     }
-#if defined (__svr4__) || defined (__lnx21__)
+#if 0
 /*
  * Push STREAMS modules:
  *    ptem: pseudo-terminal hardware emulation module.