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)

YEM-20070519:

Patch from Bernhard Fischer <rep.dot.nop@gmail.com> on the uClibc mailing

list ( http://www.uclibc.org/lists/uclibc/2008-January/018940.html ) above

the 400-bits_sysnum_h.patch.

Index: uClibc/Makefile.in

===================================================================

--- uClibc/Makefile.in	(revision 18651)

+++ uClibc/Makefile.in	(working copy)

@@ -114,7 +116,7 @@ install: install_runtime install_dev

 RUNTIME_PREFIX_LIB_FROM_DEVEL_PREFIX_LIB=$(shell $(top_srcdir)extra/scripts/relative_path.sh $(DEVEL_PREFIX)lib $(RUNTIME_PREFIX)lib)

 # Installs header files.

-install_headers:

+install_headers: headers

 	$(INSTALL) -d $(PREFIX)$(DEVEL_PREFIX)include

 	printf ".svn\n.cvsignore\nCVS\n" > tar_exclude ; \

 	$(TAR) -chf - -X tar_exclude include \