issue when i compile ww3-6.07 with ncep2 (error ww3_grib.o not found)

[aminekhedim]

I want to generate output format grib2.I change NOGRB to NCEP2 in switch and compile the libraries zlib1.2.6 g2lib-3.1.0 jasper-1.900.1 l ibpng-1.2.34 and w3lib-2.0.6 and add the path libs=" -L/home/user/libs/lib -L/home/user/g2lib.3.1.0 -lg2 -lw3 -ljasper -lpng " in the link but when i try to compile the model which NCEP2 he have error ww3_grib.o not found, i don t know how fix this error
Best regards