Dear R-developers,
I am working on an C interface to some c functions.
I compiled the c file using R CMD SHLIB without any compilation errors. All
libs used are added to the LD_LIBRARY_PATH.
However dyn.load("interface.so")
produces undefined symbol: N_VNew_Serial;
which is defined in one of the libs I link against.
Where, and how to start searching for the error?
Eryk
R-devel (AT) r-project (DOT) org mailing list

You should tell us what operating system you are working on.

If it is a Unix variant, you can use the command ldd:

ldd interface.so

and see if and where it finds all the libraries against which you link.

(otool -L on Mac S X will give you similar information.)

Then make certain that the symbol N_VNew_Serial is defined in
one of those. You can find which symbols are available from
a library, etc. using the command nm -g

If you don't find your problem, you should post the
output from R CMD SHLIB so that we can see
the link command and give you some suggestions as
to where to look.

D.

nwew wrote:
Dear R-developers,

I am working on an C interface to some c functions.
I compiled the c file using R CMD SHLIB without any compilation errors. All
libs used are added to the LD_LIBRARY_PATH.

However dyn.load("interface.so")
produces undefined symbol: N_VNew_Serial;

which is defined in one of the libs I link against.
Where, and how to start searching for the error?

Eryk

R-devel (AT) r-project (DOT) org mailing list

R-devel (AT) r-project (DOT) org mailing list