Linking probelm with gfortran 4.2 and netcdf-3.6.2

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Linking probelm with gfortran 4.2 and netcdf-3.6.2
• From: Mauro Sgroi <maurosgroi@xxxxxxxx>
• Date: Thu, 28 Jun 2007 16:38:40 +0200 (CEST)

Dear all,
I'm new to netcdf and I'm trying to use it within the
pacakage Abinit. I have a gcc/gfortran 4.2 compiler
installed on a Windows XP PC with cygwin.
I configured netcdf with the commands:

CC=gcc-4.2 FC=gfc-4.2 CXX=g++-4.2 CPP=cpp-4.2
CPPFLAGS=-Df2cFortran ./configure
--prefix=/usr/local/src/abinit-5.3.4/lib/netcdf

where gfc-4.2 is a link to gfortran.exe and so on.
The library compiles nicely with no errors.
When I try to use it to link an excutable or to
execute the tests in nf_test I get a lot of undefined
reference errors (in the following I attach some
lines):

make  nf_test.exe tst_f77_v2.exe   ftest.exe
tst_f90.exe
make[1]: Entering directory
`/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test'
/bin/sh ../libtool --tag=F77 --mode=link gfc-4.2  
-I../libsrc -I../f90 -g -O2   -o nf_test.exe 
test_get.o test_put.o nf_error.o nf_test.o test_read.o
test_write.o util.o fortlib.o   ../libsrc/libnetcdf.la
libtool: link: gfc-4.2 -I../libsrc -I../f90 -g -O2 -o
nf_test.exe test_get.o test_put.o nf_error.o nf_test.o
test_read.o test_write.o util.o fortlib.o 
../libsrc/.libs/libnetcdf.a
test_get.o: In function `test_nf_get_att_double_':
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5511:
undefined reference to `_nf_open_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5521:
undefined reference to `_nf_get_att_double_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5526:
undefined reference to `_nf_get_att_double_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5529:
undefined reference to `_nf_get_att_double_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5547:
undefined reference to `_nf_get_att_double_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5594:
undefined reference to `_nf_close_'
test_get.o: In function `test_nf_get_att_real_':
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5403:
undefined reference to `_nf_open_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5413:
undefined reference to `_nf_get_att_real_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5418:
undefined reference to `_nf_get_att_real_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5421:
undefined reference to `_nf_get_att_real_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5439:
undefined reference to `_nf_get_att_real_'
/usr/local/src/abinit-5.3.4/lib/netcdf/netcdf-3.6.2/nf_test/test_get.F:5486:
undefined reference to `_nf_close_'

The problem is strange becuse if I use nm to look for
the undefinded references I can find them in the
library: 

nm libsrc/.libs/libnetcdf.a | grep _nf_open_
00000740 T _nf_open__
         U _nf_open_

The problem appears also with gfortran 4.3 and also
changing the FCFLAGS (I tried -fno-second-underscore,
-ff2c) and removing the directive -Df2cFortran.

Can you help me to solve these errors?
Thanks a lot and best regards,
Mauro Sgroi.




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