tesseract: Explicitly provide jbigkit link path

Seems like old compilers need some help with indirect dependencies of libraries.

component/tesseract/buildout.cfg

@@ -3,6 +3,7 @@ extends =
   ../automake/buildout.cfg
   ../libtool/buildout.cfg
   ../leptonica/buildout.cfg
+  ../jbigkit/buildout.cfg
 
 parts =
   tesseract
@@ -48,7 +49,7 @@ environment =
   ACLOCAL_ARGS=-I${libtool:location}/share/aclocal
   LIBLEPT_HEADERSDIR=${leptonica:location}/include
   CPPFLAGS=-I${leptonica:location}/include
-  LDFLAGS =-L${leptonica:location}/lib -Wl,-rpath=${leptonica:location}/lib
+  LDFLAGS =-L${leptonica:location}/lib -Wl,-rpath=${leptonica:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib
 
 [tesseract-eng-traineddata]
 recipe = hexagonit.recipe.download