With latest versions of glibc, a lot of apps failed on a PaX enabled

 	system with:

 		 cannot enable executable stack as shared object requires: Permission denied

 	This is due to PaX 'exec-protecting' the stack, and ld.so then trying

 	to make the stack executable due to some libraries not containing the

 	PT_GNU_STACK section.  Bug #32960.  <azarah@gentoo.org> (12 Nov 2003).

 	Patch also NPTL. Bug #116086. <kevquinn@gentoo.org> (20 Dec 2005).

 diff -durN glibc-2.12.1.orig/nptl/allocatestack.c glibc-2.12.1/nptl/allocatestack.c

 --- glibc-2.12.1.orig/nptl/allocatestack.c	2009-01-29 21:34:16.000000000 +0100

 +++ glibc-2.12.1/nptl/allocatestack.c	2009-11-13 00:50:33.000000000 +0100

 @@ -329,7 +329,8 @@

  # error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"

  #endif

    if (mprotect (stack, len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)

 -    return errno;

 +    if (errno != EACCES) /* PAX is enabled */

 +    	return errno;

    return 0;

  }

 diff -durN glibc-2.12.1.orig/sysdeps/unix/sysv/linux/dl-execstack.c glibc-2.12.1/sysdeps/unix/sysv/linux/dl-execstack.c

 --- glibc-2.12.1.orig/sysdeps/unix/sysv/linux/dl-execstack.c	2006-01-08 09:21:15.000000000 +0100

 +++ glibc-2.12.1/sysdeps/unix/sysv/linux/dl-execstack.c	2009-11-13 00:50:33.000000000 +0100

 @@ -63,7 +63,10 @@

        else

  # endif

  	{

 -	  result = errno;

 +	  if (errno == EACCES)  /* PAX is enabled */

 +	    result = 0;

 +	  else

 +	    result = errno;

  	  goto out;

  	}

      }

 @@ -89,7 +92,12 @@

  	page -= size;

        else

  	{

 -	  if (errno != ENOMEM)	/* Unexpected failure mode.  */

 +	  if (errno == EACCES)		/* PAX is enabled */

 +	    {

 +	      result = 0;

 +	      goto out;

 +	    }

 +	  else if (errno != ENOMEM)	/* Unexpected failure mode.  */

  	    {

  	      result = errno;

  	      goto out;

 @@ -115,7 +123,12 @@

  	page += size;

        else

  	{

 -	  if (errno != ENOMEM)	/* Unexpected failure mode.  */

 +	  if (errno == EACCES)		/* PAX is enabled */

 +	    {

 +	      result = 0;

 +	      goto out;

 +	    }

 +	  else if (errno != ENOMEM)	/* Unexpected failure mode.  */

  	    {

  	      result = errno;

  	      goto out;