161 lines
8.2 KiB
Scheme
161 lines
8.2 KiB
Scheme
(define-syntax define-c-library
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(syntax-rules ()
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((_ scheme-name headers object-name options)
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(define scheme-name
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(let* ((os (cond-expand (windows 'windows) (guile 'unix) (else 'unix)))
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(arch (cond-expand (i386 'i386) (guile 'x86_64) (else 'x86_64)))
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(string-split
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(lambda (str mark)
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(let* ((str-l (string->list str))
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(res (list))
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(last-index 0)
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(index 0)
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(splitter (lambda (c)
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(cond ((char=? c mark)
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(begin
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(set! res (append res (list (substring str last-index index))))
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(set! last-index (+ index 1))))
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((equal? (length str-l) (+ index 1))
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(set! res (append res (list (substring str last-index (+ index 1)))))))
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(set! index (+ index 1)))))
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(for-each splitter str-l)
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res)))
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(internal-options (if (null? 'options)
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(list)
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(cadr 'options)))
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(additional-paths (if (assoc 'additional-paths internal-options)
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(cadr (assoc 'additional-paths internal-options))
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(list)))
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(additional-versions (if (assoc 'additional-versions internal-options)
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(map (lambda (version)
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(if (number? version)
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(number->string version)
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version))
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(cadr (assoc 'additional-versions internal-options)))
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(list)))
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(slash (if (symbol=? os 'windows) "\\" "/"))
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(auto-load-paths
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(if (symbol=? os 'windows)
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(append
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(if (get-environment-variable "FOREIGN_C_LOAD_PATH")
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(string-split (get-environment-variable "FOREIGN_C_LOAD_PATH") (string-ref ";" 0))
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(list))
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(if (get-environment-variable "SYSTEM")
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(list (get-environment-variable "SYSTEM"))
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(list))
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(if (get-environment-variable "WINDIR")
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(list (get-environment-variable "WINDIR"))
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(list))
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(if (get-environment-variable "WINEDLLDIR0")
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(list (get-environment-variable "WINEDLLDIR0"))
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(list))
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(if (get-environment-variable "SystemRoot")
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(list (string-append
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(get-environment-variable "SystemRoot")
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slash
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"system32"))
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(list))
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(list ".")
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(if (get-environment-variable "PATH")
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(string-split (get-environment-variable "PATH") (string-ref ";" 0))
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(list))
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(if (get-environment-variable "PWD")
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(list (get-environment-variable "PWD"))
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(list)))
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(append
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(if (get-environment-variable "FOREIGN_C_LOAD_PATH")
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(string-split (get-environment-variable "FOREIGN_C_LOAD_PATH") (string-ref ":" 0))
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(list))
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; Guix
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(list (if (get-environment-variable "GUIX_ENVIRONMENT")
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(string-append (get-environment-variable "GUIX_ENVIRONMENT") slash "lib")
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"")
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"/run/current-system/profile/lib")
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; Debian
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(if (get-environment-variable "LD_LIBRARY_PATH")
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(string-split (get-environment-variable "LD_LIBRARY_PATH") (string-ref ":" 0))
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(list))
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(if (symbol=? arch 'i386)
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(list
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"/lib/i386-linux-gnu"
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"/usr/lib/i386-linux-gnu"
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"/lib32"
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"/usr/lib32")
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(list
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;;; x86-64
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; Debian
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"/lib/x86_64-linux-gnu"
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"/usr/lib/x86_64-linux-gnu"
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"/usr/local/lib"
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; Fedora/Alpine
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"/usr/lib"
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"/usr/lib64"
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;;; aarch64
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; Debian
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"/lib/aarch64-linux-gnu"
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"/usr/lib/aarch64-linux-gnu"
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"/usr/local/lib"
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; Fedora/Alpine
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"/usr/lib"
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"/usr/lib64"
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; NetBSD
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"/usr/pkg/lib"
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; Haiku
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"/boot/system/lib")))))
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(auto-load-versions (list ""))
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(paths (append auto-load-paths additional-paths))
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(versions (append additional-versions auto-load-versions))
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(platform-lib-prefix (if (symbol=? os 'windows) "" "lib"))
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(platform-file-extension (if (symbol=? os 'windows) ".dll" ".so"))
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(shared-object #f)
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(searched-paths (list)))
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(for-each
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(lambda (path)
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(for-each
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(lambda (version)
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(let ((library-path
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(string-append path
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slash
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platform-lib-prefix
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object-name
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(if (symbol=? os 'windows)
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""
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platform-file-extension)
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(if (string=? version "")
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""
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(string-append
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(if (symbol=? os 'windows)
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"-"
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".")
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version))
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(if (symbol=? os 'windows)
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platform-file-extension
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"")))
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(library-path-without-suffixes (string-append path
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slash
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platform-lib-prefix
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object-name)))
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(set! searched-paths (append searched-paths (list library-path)))
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(when (and (not shared-object)
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(file-exists? library-path))
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(set! shared-object
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(cond-expand
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(gauche library-path-without-suffixes)
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(racket library-path-without-suffixes)
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(guile library-path)
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(else library-path))))))
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versions))
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paths)
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(if (not shared-object)
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(error "Could not load shared object: "
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(list (cons 'object object-name)
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(cons 'searched-paths searched-paths)
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(cons 'platform-file-extension platform-file-extension)
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(cons 'versions versions)))
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(cond-expand
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(stklos shared-object)
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(guile (shared-object-load shared-object
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`((additional-versions ,additional-versions))))
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(else (shared-object-load shared-object
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`((additional-versions ,additional-versions)))))))))))
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