Original patch from: gentoo/src/patchsets/glibc/2.9/3000_all_2.3.6-dl_execstack-PaX-support.patch

-= BEGIN original header =-

	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).

-= END original header =-

diff -durN glibc-2_9.orig/nptl/allocatestack.c glibc-2_9/nptl/allocatestack.c

--- glibc-2_9.orig/nptl/allocatestack.c	2008-08-16 00:35:27.000000000 +0200

+++ glibc-2_9/nptl/allocatestack.c	2009-02-02 22:01:20.000000000 +0100

@@ -299,7 +299,8 @@

 # 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_9.orig/sysdeps/unix/sysv/linux/dl-execstack.c glibc-2_9/sysdeps/unix/sysv/linux/dl-execstack.c

--- glibc-2_9.orig/sysdeps/unix/sysv/linux/dl-execstack.c	2006-01-08 09:21:15.000000000 +0100

+++ glibc-2_9/sysdeps/unix/sysv/linux/dl-execstack.c	2009-02-02 22:01:20.000000000 +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;