[netcdfgroup] NetCDF, Fortran, and MinGW

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: [netcdfgroup] NetCDF, Fortran, and MinGW
• From: Leon Maurer <leon.maurer@xxxxxxxxx>
• Date: Thu, 10 Jan 2013 14:46:51 -0600

Howdy,

I've got some noob questions for you.

I'm writing some code that uses NetCDF's Fortran 90 interface. It works
nicely on Linux, but I'm having trouble getting it working under Windows
with MinGW. So, I downloaded the pre-compiled NetCDF
libraries<http://www.unidata.ucar.edu/software/netcdf/win_netcdf/>,
used that to compile the NetCDF Fortran source
code<http://www.unidata.ucar.edu/downloads/netcdf/netcdf-fortran/index.jsp>
without
any special options, and I'm having trouble using the resulting libraries.

When I try to compile my program

gfortran -IwinLibs/include -LwinLibs/lib -static -ffree-line-length-none
-O3 -o pmcWGFortran -march=core2 comparams.f95 usenetCDF.f95 surfGen.f95
phonon.f95 initPhonons.f95 phononSubs.f95 initConst.f95
distributionTracking.f95 main.f95 -lfftpack5.1 -lM_kracken -lnetcdff
-lnetcdf


I get the following output

winLibs/lib\libnetcdff.a(fort-nc4.o): In function `nf_create_par_':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-nc4.c:22:
undefined reference to `nc_create_par_fortran'
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-nc4.c:22:
undefined reference to `nc_create_par_fortran'
winLibs/lib\libnetcdff.a(fort-nc4.o): In function `nf_open_par_':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-nc4.c:25:
undefined reference to `nc_open_par_fortran'
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-nc4.c:25:
undefined reference to `nc_open_par_fortran'
collect2: ld returned 1 exit status


Any idea what I should do?

I guess I don't really know that the Fortran libraries built correctly in
the first place; "make check" wasn't happy (output below). Maybe I should
have used some special options to compile the Fortran libraries?

Thanks.
-Leon

--------------------------------------------------------------------------
C:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2>make check
Making check in f90
make[1]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/f9
0'
make  check-am
make[2]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/f9
0'
make[2]: Nothing to be done for `check-am'.
make[2]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/f90
'
make[1]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/f90
'
Making check in fortran
make[1]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/fo
rtran'
make  check-am
make[2]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/fo
rtran'
make[2]: Nothing to be done for `check-am'.
make[2]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/for
tran'
make[1]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/for
tran'
Making check in nf_test
make[1]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/nf
_test'
make  nf_test.exe tst_f77_v2.exe ftst_vars.exe ftst_vars2.exe
ftst_vars3.exe fts
t_vars4.exe ftst_vars5.exe ftst_vars6.exe ftst_types.exe ftst_types2.exe
ftst_ty
pes3.exe ftst_groups.exe f90tst_vars.exe tst_types.exe tst_types2.exe
f90tst_var
s_vlen.exe tst_f90_nc4.exe f90tst_grps.exe f90tst_fill.exe f90tst_fill2.exe
f90t
st_vars3.exe f90tst_vars4.exe f90tst_vars2.exe ftst_v2.exe     ftest.exe
tst_f90
.exe
make[2]: Entering directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/nf
_test'
make[2]: `nf_test.exe' is up to date.
/bin/sh ../libtool --tag=F77   --mode=link gfortran -I../fortran  -I../f90
-g -O
2  -L/usr/local/lib -o tst_f77_v2.exe tst_f77_v2.o ../fortran/libnetcdff.la -ln
etcdf
libtool: link: gfortran -I../fortran -I../f90 -g -O2 -o
.libs/tst_f77_v2.exe tst
_f77_v2.o  -L/usr/local/lib ../fortran/.libs/libnetcdff.a -lnetcdf
../fortran/.libs/libnetcdff.a(fort-v2compat.o): In function `c_ncpopt':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:200:
un
defined reference to `ncopts'
../fortran/.libs/libnetcdff.a(fort-v2compat.o): In function `ncgopt_':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:221:
un
defined reference to `ncopts'
../fortran/.libs/libnetcdff.a(fort-v2compat.o): In function `c_nccre':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:243:
un
defined reference to `ncerr'
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:249:
un
defined reference to `ncerr'
../fortran/.libs/libnetcdff.a(fort-v2compat.o): In function `c_ncopn':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:295:
un
defined reference to `ncerr'
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:289:
un
defined reference to `ncerr'
../fortran/.libs/libnetcdff.a(fort-v2compat.o): In function `c_ncddef':
c:\Users\Leon\Dropbox\winLibs\netcdf-fortran-4.2\fortran/fort-v2compat.c:321:
un
defined reference to `ncerr'
../fortran/.libs/libnetcdff.a(fort-v2compat.o):c:\Users\Leon\Dropbox\winLibs\net
cdf-fortran-4.2\fortran/fort-v2compat.c:349: more undefined references to
`ncerr
' follow
collect2: ld returned 1 exit status
make[2]: *** [tst_f77_v2.exe] Error 1
make[2]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/nf_
test'
make[1]: *** [check-am] Error 2
make[1]: Leaving directory
`/c/Users/Leon/Dropbox/winLibs/netcdf-fortran-4.2/nf_
test'
make: *** [check-recursive] Error 1

• Follow-Ups:
  • Re: [netcdfgroup] NetCDF, Fortran, and MinGW
    • From: Leon Maurer