scheme-libraries/foreign/c/define-c-library.scm

161 lines
8.2 KiB
Scheme

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