--- procps-3.2.5/ps/parser.c.orig	2005-01-14 20:10:21.000000000 +0100
+++ procps-3.2.5/ps/parser.c	2005-02-06 03:29:19.477738552 +0100
@@ -336,12 +336,19 @@
       exclusive("-V");
       display_version();
       exit(0);
+#ifdef __linux__
+    case 'Z':     /* full Mandatory Access Control level info */
+      trace("-Z shows full MAC info\n");
+      format_modifiers |= FF_Fc;
+      break;
+#else
     // This must be verified against SVR4-MP. (UnixWare or Powermax)
     // Leave it undocumented until that problem is solved.
     case 'Z':     /* full Mandatory Access Control level info */
       trace("-Z shows full MAC info\n");
       format_modifiers |= FM_M;
       break;
+#endif
     case 'a':
       trace("-a select all with a tty, but omit session leaders.\n");
       simple_select |= SS_U_a;
@@ -472,12 +479,12 @@
       trace("-y Print lnone info in UID/USER column or do Sun -l hack.\n");
       format_modifiers |= FM_y;
       break;
-#if 0
     // This must be verified against SVR4-MP (UnixWare or Powermax)
     case 'z':     /* alias of Mandatory Access Control level info */
       trace("-z shows aliased MAC info\n");
       format_modifiers |= FM_M;
       break;
+#if 0
     // Solaris 10 does this
     case 'z':     /* select by zone */
       trace("-z secects by zone\n");
@@ -605,10 +612,17 @@
       trace("X Old Linux i386 register format\n");
       format_flags |= FF_LX;
       break;
+#ifdef __linux__
+    case 'Z':
+      trace("Z SElinux Security Context format\n");
+      format_flags |= FF_Fc;
+      break;
+#else
     case 'Z':  /* FreeBSD does MAC like SGI's Irix does it */
       trace("Z Print security label for Mandatory Access Control.\n");
       format_modifiers |= FM_M;
       break;
+#endif
     case 'a':
       trace("a Select all w/tty, including other users\n");
       simple_select |= SS_B_a;
--- procps-3.2.5/ps/ps.1.orig	2004-12-02 18:39:04.000000000 +0100
+++ procps-3.2.5/ps/ps.1	2005-02-06 03:30:51.666723696 +0100
@@ -446,6 +446,9 @@
 Do not show flags; show rss in place of addr.
 This option can only be used with \fB\-l\fR.
 
+.opt \-Z
+display security context format (NSA SELinux, etc.)
+
 .opt \-\-format \ format
 user\-defined format.  Identical to \fB\-o\fR and \fBo\fR.