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>
(transplanted from 139b85d70b623e51f7585e7c64ecb8c6a6cf4567)

diff -durN gcc-4.4.5.orig/include/libiberty.h gcc-4.4.5/include/libiberty.h

--- gcc-4.4.5.orig/include/libiberty.h	2008-06-24 03:42:31.000000000 +0200

+++ gcc-4.4.5/include/libiberty.h	2010-10-09 23:01:30.000000000 +0200

@@ -595,8 +595,11 @@

 /* Like sprintf but provides a pointer to malloc'd storage, which must

    be freed by the caller.  */

+/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */

+#ifndef asprintf

 extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;

 #endif

+#endif

 #if !HAVE_DECL_VASPRINTF

 /* Like vsprintf but provides a pointer to malloc'd storage, which