Problem is probably here:
OPT = -O -I/sw/lib/netcdf-gfortran/include -L/sw/lib/netcdf-
gfortran/include -lnetcdf
should have "-L/sw/lib/netcdf-gfortran/lib" (lib instead of include
after the -L)
-- Ted
On Jul 29, 2010, at 3:13 PM, Jose Borrero wrote:
Hello everyone,
I am sure this an incredibly basic question, but maybe someone can
tell me what i am doing wrong. I am pretty hopeless in this regard.
I have a FORTRAN code that writes data out to netCDF files. It is
old, but it works...
The code compiles using a makefile that calls various netCDF
libraries.
I am using the g77 compiler that i installed via fink
the makefile looks like this:
=================================
F77 = g77
OBJ = most3_x
SRC = most3_nc_x.f offtime.f timestep.f swlon.f swlat.f
swrun03.f surf_read.f surf_run.f rgrd1.f rgrd2.f
OPT = -O -I/sw/lib/netcdf-gfortran/include -L/sw/lib/netcdf-
gfortran/include -lnetcdf
$(OBJ): $(SRC)
$(F77) $(SRC) $(OPT) -o $(OBJ)
=================================
the error I get looks like this:
=================================
ld: library not found for -lnetcdf
collect2: ld returned 1 exit status
make: *** [most3_x] Error 1
=================================
so what i can;t figure out is what file is the compiler looking for?
I have installed the netCDF packages using fink on my macbook
(10.6.4). It is obviously looking for a library file, but what it
its exact name? and where might i find it? I have searched around in
the usual places, i.e. places where fink puts things, i.e. in the /
sw directories.
This same set up works on my older macs (10.4.xx) and things worked
by just altering the paths in the lines above. But now, on this
newer set up, I can't seem to get the right bits talking to each
other.
I have tried adding various paths after the -l flag in the OPT line
above, but it gets me to the same place.
Can someone tell me fundamentally what that OPT line in the make
file is doing? why is there a path before the include file? but not
before the library file?
What is the -I flag and what is the -L flag? (I am guessing Include
and Library, but then why -l?)
Anyway, any help/suggestions appreciated.
-jose
--
Jose C. Borrero
Adjunct Assistant Professor
University of Southern California
Tsunami Research Center
http://www.usc.edu/dept/tsunamis
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