undefined reference to 변수명 해결좀 부탁드립니다.

[sja3@tulip mgdsst2cdf]$ make
(cd src/libnctool;make);
make[1]: Entering directory `/home/sja3/ksh/final/mgdsst2cdf/src/libnctool'
ar ru libnctool.a module_nctool.o
make[1]: Leaving directory `/home/sja3/ksh/final/mgdsst2cdf/src/libnctool'
(cd src ; make);
make[1]: Entering directory `/home/sja3/ksh/final/mgdsst2cdf/src'
pgf90  -I/usr/local/netcdf/413_pgi133/include -I. -Ilibnctool -o mgdsst2cdf module_time.o module_pregrid.o read_sst_data.o write_netcdf.o mgdsst2cdf.o -Llibnctool -lnctool -lnetcdf -L/usr/local/netcdf/413_pgi133/lib
write_netcdf.o: In function `.STATICS1':
write_netcdf.f90:(.data+0x88): undefined reference to `typesizes_'
write_netcdf.f90:(.data+0x90): undefined reference to `netcdf_'
mgdsst2cdf.o: In function `.STATICS1':
mgdsst2cdf.f90:(.data+0x890): undefined reference to `typesizes_'
mgdsst2cdf.f90:(.data+0x898): undefined reference to `netcdf_'
libnctool/libnctool.a(module_nctool.o): In function `nctool_nt_strerror_':
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool.f90:232: undefined reference to `netcdf_nf90_strerror_'
libnctool/libnctool.a(module_nctool.o): In function `nctool_nt_open_':
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:19: undefined reference to `netcdf_nf90_open_'
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:19: undefined reference to `netcdf_nf90_strerror_'
libnctool/libnctool.a(module_nctool.o): In function `nctool_nt_create_':
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:40: undefined reference to `netcdf_nf90_create_'
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:40: undefined reference to `netcdf_nf90_strerror_'
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:47: undefined reference to `netcdf_nf90_put_att_text_'
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:47: undefined reference to `netcdf_nf90_put_att_text_'
/home/sja3/ksh/final/mgdsst2cdf/src/libnctool/./module_nctool_io.f90:47: undefined reference to `netcdf_nf90_put_att_text_'

FC      = pgf90
FCFLAGS =
CC      = gcc
CFLAGS  =
#
# Linux with ifc
#
#FC       = ifort
#FCFLAGS  = -assume byterecl -convert big_endian
#CC       = gcc
#CFLAGS   =
#
# Sun OS with f90
#
#FC      = f90
#FCFLAGS =
#CC      = gcc
#CFLAGS  =
 
#
# General comand
#
AR       = ar
BITS     = BIT64
CDF_INC  = -I/usr/local/netcdf/413_pgi133/include -I. -Ilibnctool
CDF_LIB  = -L/usr/local/netcdf/413_pgi133/lib
#CDF_INC  = -I/usr/local/netcdf_pgf/include -I. -Ilibnctool
#CDF_LIB  = -L/usr/local/netcdf_pgf/lib
 
.SUFFIXES: .f90 .F .F90 .o .f .c