optional_depends  'g++'               \
                  '--enable-cxx'      \
                  '--disable-cxx'     \
                  'for C++ bindings'  &&

optional_depends  'JDK'                \
                  '--enable-java'      \
                  '--disable-java'     \
                  'for Java bindings'  \
                  'z-rejected'         &&

optional_depends  'python'               \
                  '--enable-python'      \
                  '--disable-python'     \
                  'for Python bindings'
