complibs/ppl: fix 0.11-0.11.2 to compile with --disable-shared

PPL 0.11 (through 0.11.2) had a small bug where it still tried to build
and test its Java interface even when shared libraries are disabled.
Since that's exactly what ct-ng does, it explodes.

This is the patch from the PPL authors (see final link below).

More information can be found in these messages/threads:

Anthony's initial report and analysis with Yann:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00046.html

Ron Flory hit the same problem:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00054.html

Anthony's report to the ppl-devel list:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017450.html

Roberto's reply with a link to the fix in the PPL git repo:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017455.html

Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>

2011-02-28  Aurelien Jarno  <aurelien@aurel32.net>

	* sysdeps/alpha/stackinfo.h: Define DEFAULT_STACK_PERMS with PF_X.

diff --git glibc-2.13/glibc-ports-2.13/sysdeps/alpha/stackinfo.h glibc-2.13/glibc-ports-2.13/sysdeps/alpha/stackinfo.h

index 0a281bd..d9dbc35 100644

--- glibc-2.13/glibc-ports-2.13/sysdeps/alpha/stackinfo.h

+++ glibc-2.13/glibc-ports-2.13/sysdeps/alpha/stackinfo.h

@@ -22,7 +22,13 @@

 #ifndef _STACKINFO_H

 #define _STACKINFO_H	1

+#include <elf.h>

+

 /* On Alpha the stack grows down.  */

 #define _STACK_GROWS_DOWN	1

+/* Default to an executable stack.  PF_X can be overridden if PT_GNU_STACK is

+ * present, but it is presumed absent.  */

+#define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)

+

 #endif	/* stackinfo.h */