http://svn.savannah.nongnu.org/viewvc?view=rev&root=sysvinit&revision=90
https://bugs.gentoo.org/326697

--- sysvinit/trunk/src/init.c	2010/05/07 15:16:26	89
+++ sysvinit/trunk/src/init.c	2010/05/17 09:44:34	90
@@ -54,10 +54,6 @@
 
 #ifdef WITH_SELINUX
 #  include <selinux/selinux.h>
-#  include <sys/mount.h>
-#  ifndef MNT_DETACH /* present in glibc 2.10, missing in 2.7 */
-#    define MNT_DETACH 2
-#  endif
 #endif
 
 #ifdef __i386__
@@ -2872,11 +2868,9 @@
 
 #ifdef WITH_SELINUX
 	if (getenv("SELINUX_INIT") == NULL) {
-	  const int rc = mount("proc", "/proc", "proc", 0, 0);
-	  if (is_selinux_enabled() > 0) {
-	    putenv("SELINUX_INIT=YES");
-	    if (rc == 0) umount2("/proc", MNT_DETACH);
+         if (is_selinux_enabled() != 1) {
 	    if (selinux_init_load_policy(&enforce) == 0) {
+             putenv("SELINUX_INIT=YES");
 	      execv(myname, argv);
 	    } else {
 	      if (enforce > 0) {
@@ -2887,7 +2881,6 @@
 	      }
 	    }
 	  }
-	  if (rc == 0) umount2("/proc", MNT_DETACH);
 	}
 #endif  
 	/* Start booting. */