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;; Load GSL
;; Liam Healy Sat Mar  4 2006 - 18:53
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;; Time-stamp: <2010-08-16 23:08:13EDT init.lisp>
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;;
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;; Copyright 2006, 2007, 2008, 2009, 2010 Liam M. Healy
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;; Distributed under the terms of the GNU General Public License
;;
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
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(defpackage gsll
  (:nicknames :gsl)
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  (:use :common-lisp :cffi)
  (:import-from
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   :grid
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   #:cl-array #:dimensions #:element-type
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   #:foreign-array #:matrix #:dim0 #:dim1 #:^
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   #:copy)
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  (:shadowing-import-from :grid #:foreign-pointer)
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  (:export
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   #:cl-array #:dimensions #:element-type #:dim0 #:dim1
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   #:copy))
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(in-package :gsl)

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(eval-when (:compile-toplevel :load-toplevel :execute)
  (defun gsl-config (arg)
    "A wrapper for tool `gsl-config'."
    (with-input-from-string
        (s (with-output-to-string (asdf::*verbose-out*)
             (asdf:run-shell-command "gsl-config ~s" arg)))
      (read-line s)
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      (read-line s)))
  #+unix
  (defun gsl-config-pathname (pn)
    (merge-pathnames pn (pathname (format nil "~a/" (gsl-config "--prefix"))))))
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(cffi:define-foreign-library libgslcblas
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  (:darwin #.(gsl-config-pathname "lib/libgslcblas.dylib"))
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  (:cygwin "cyggslcblas-0.dll")
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  (:unix (:or "libgslcblas.so.0" "libgslcblas.so"))
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  (t (:default "libgslcblas")))
   
(cffi:use-foreign-library libgslcblas)

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;; When calling libgsl from emacs built for windows and slime, and
;; using clisp built for cygwin, we have to load lapack/cygblas.dll
;; before loading cyggsl-0.dll
#+(and clisp cygwin)
(cffi:load-foreign-library "/lib/lapack/cygblas.dll")

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(cffi:define-foreign-library libgsl
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  (:darwin #. (gsl-config-pathname "lib/libgsl.dylib"))
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  (:cygwin "cyggsl-0.dll")
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  (:unix (:or "libgsl.so.0" "libgsl.so"))
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  (t (:default "libgsl")))
   
(cffi:use-foreign-library libgsl)