make problem

Thank you for your help. So when I see that error, is it
safe to assume
that libnetcdf.so should live in the directory following the
-L?

Greg


Colin S. Miller wrote:
> gmarkowskygmail.com wrote:
> > Hi all,
> >
> >
> > libNLM.a(output.o): In function `output_':
> > output.f90:(.text+0x2e4): undefined reference to
`nf_close_'
> > output.f90:(.text+0x381): undefined reference to
`nf_close_'
> > output.f90:(.text+0x47d): undefined reference to
`nf_close_'
> > libUTIL.a(close_io.o): In function `close_io_':
> > close_io.f90:(.text+0x42): undefined reference to
`nf_close_'
> > close_io.f90:(.text+0x6d): undefined reference to
`nf_close_'
> > libUTIL.a(close_io.o):close_io.f90:(.text+0x98):
more undefined
> > references to `nf_close_' follow
> > libUTIL.a(close_io.o): In function `close_io_':
> >
> > So what gives? Is it not finding something? Then
why does it not say
> > "file not found"? What does the -L part
mean? Haven't been able to
> > figure that out.
> >
> Greg,
>
> -L/path/to/lib
> adds the path to the search directories for libraries
(collections of object files).
>
>
>  > libNLM.a(output.o): In function `output_':
>  > output.f90:(.text+0x2e4): undefined reference to
`nf_close_'
>  > output.f90:(.text+0x381): undefined reference to
`nf_close_'
>  > output.f90:(.text+0x47d): undefined reference to
`nf_close_'
>
> means that the function output_[0], in
> the object file "output.o" (probably from
output.f)
> in libNLM.a, referenced the function nf_close_, but
this
> function could not be found.
>
> In Unix, an object (or library) that defines a
function,
> must be listed after the object (or library) that calls
> that function.
>
> [0]
> Or 'output', most computer languages change the name of
the functions
> in the object files. E.g., in C, all functions are
preceded with a '_'.
> It appears that fortran appends a '_'.
>
>
> HTH,
> Colin S. Miller
>
>
> > Greg
> >
>
>
> --
> Replace the obvious in my email address with the first
three letters of the hostname to reply.

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