Hello,
I am trying to use nlopt 2.4.2 with the Scheme/Guile interface.
I have Guile 1.8.8, and nlopt is installed in /opt/nlopt.
I modified the example in the tutorial slightly, to set LD_LIBRARY_PATH:
(setenv "LD_LIBRARY_PATH" "/opt/nlopt/lib")
(use-modules (nlopt))
(define (fx x grad)
(if grad
(begin
(vector-set! grad 0 0.0)
(vector-set! grad 1 (/ 0.5 (sqrt (vector-ref x 1))))))
(sqrt (vector-ref x 1)))
...
I also have to start guile with "guile -L /opt/nlopt/share/guile/site"
so that it can find the nlopt.scm file.
After I do all this, the result is an error:
guile>
Backtrace:
In unknown file:
?: 0* [primitive-load "/usr/home/ko/projects/nlopt/ex.scm"]
In /usr/home/ko/projects/nlopt/ex.scm:
31: 1* (define opt (new-nlopt-opt NLOPT-LD-MMA 2))
31: 2* (new-nlopt-opt NLOPT-LD-MMA 2)
/usr/home/ko/projects/nlopt/ex.scm:31:13: In expression (new-nlopt-opt
NLOPT-LD-MMA 2):
/usr/home/ko/projects/nlopt/ex.scm:31:13: Unbound variable: new-nlopt-opt
ABORT: (unbound-variable)
guile>
Any help would be appreciated.
Kostas
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