Help with nlffi

Hi,

After following step by step the README placed on 
$SMLNJ_HOME/src/ml-nlffigen, I can't make the example work :-(.

I've just coded a really dummy foo.h (which uses no library at all), and 
when running "sml -m foo.cm" I got the following:

bn@DALI:~/tesis/nlffi-tests/example$ sml -m foo.cm
Standard ML of New Jersey v110.58 [built: Fri Mar 24 12:51:04 2006]
[scanning foo.cm]
[scanning $/c.cm]
foo.cm:4.13-5.6 Error: Io: openIn failed on "$Undef<c.cm>/c.cm", No such 
file or directory
[attempting to load plugin $/make-tool.cm]
[library $/make-tool.cm is stable]
[library $smlnj/internal/cm-lib.cm is stable]
[library $smlnj/internal/srcpath-lib.cm is stable]
[library $SMLNJ-LIB/Util/smlnj-lib.cm is stable]
[library $SMLNJ-BASIS/basis.cm is stable]
$Execute: required privileges are:
   cm-init
[library $smlnj/cm/cm.cm is stable]
[library $smlnj/internal/cm-sig-lib.cm is stable]
[library $/pgraph.cm is stable]
[library $smlnj/internal/cm0.cm is stable]
[library $smlnj/cm/tools.cm is stable]
[plugin $/make-tool.cm loaded successfully]
[make -f foo.make SMLNJ_BINDIR=/usr/local/sml/bin FFI/foo.cm]
make: `FFI/foo.cm' is up to date.
-

My foo.h has only the following line:

int something(void);

After the automatic generation done with ml-nlffigen, I've got an 
structure F_something with an 'f' function defined.

I'm not sure if above ml's output is failing or not, but I've tried to 
invoke F_something.f in the interpreter and I get:
- F_structure.f();
stdIn:1.1-1.14 Error: unbound structure: F_structure in path F_structure.f

Can any of you please clarify how do I have to call the generated code?

Thanks, Natalia.


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