use our own pcre in wget.

component/wget/buildout.cfg

 [buildout]
 extends =
   ../openssl/buildout.cfg
+  ../pcre/buildout.cfg
   ../pkgconfig/buildout.cfg
   ../xz-utils/buildout.cfg
   ../zlib/buildout.cfg
@@ -22,5 +23,5 @@ configure-options =
 environment =
   PATH=${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${openssl:location}/lib/pkgconfig
-  LDFLAGS=-L${zlib:location}/lib -L${openssl:location}/lib
-  CPPFLAGS=-I${zlib:location}/include -I${openssl:location}/include
+  LDFLAGS=-L${zlib:location}/lib -L${openssl:location}/lib -L${pcre:location}/lib -Wl,-rpath=${pcre:location}/lib
+  CPPFLAGS=-I${zlib:location}/include -I${openssl:location}/include -I${pcre:location}/include