DIRS=usainf 

OPTIONAL_DIRS= chsinf \
               chtinf \
               jpninf \
               korinf \
               gerinf \
                frinf \
                esinf \
                brinf \
                nlinf \
                svinf \
                itinf \
               psuinf \
                elinf \
                noinf \
                fiinf \
                dainf \
                ptinf \
                plinf \
                csinf \
                ruinf \
                huinf \
                trinf \
               tstinf