X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=src%2Fos.lisp;h=bd95f05385db385547ab0551ec6662b712f4126c;hb=c4533c02d3f2ebd53178c93de2dee09ca39fe0e7;hp=bcbf65839c0b5a6e39aaab9c0e87714d1c492cc1;hpb=3ade95bab16abe09642554e9cbf56f117f01e507;p=uffi.git

diff --git a/src/os.lisp b/src/os.lisp
index bcbf658..bd95f05 100644
--- a/src/os.lisp
+++ b/src/os.lisp
@@ -5,7 +5,7 @@
 ;;;; Name:          os.lisp
 ;;;; Purpose:       Operating system interface for UFFI
 ;;;; Programmer:    Kevin M. Rosenberg
-;;;; Date Started:  Sep 2002 
+;;;; Date Started:  Sep 2002
 ;;;;
 ;;;; $Id$
 ;;;;
@@ -15,6 +15,22 @@
 
 (in-package #:uffi)
 
+
+(defun getenv (var)
+  "Return the value of the environment variable."
+  #+allegro (sys::getenv (string var))
+  #+clisp (sys::getenv (string var))
+  #+cmu (cdr (assoc (string var) ext:*environment-list* :test #'equalp
+                    :key #'string))
+  #+gcl (si:getenv (string var))
+  #+lispworks (lw:environment-variable (string var))
+  #+lucid (lcl:environment-variable (string var))
+  #+mcl (ccl::getenv var)
+  #+sbcl (sb-ext:posix-getenv var)
+  #-(or allegro clisp cmu gcl lispworks lucid mcl sbcl)
+  (error 'not-implemented :proc (list 'getenv var)))
+
+
 ;; modified from function ASDF -- Copyright Dan Barlow and Contributors
 
 (defun run-shell-command (control-string  &rest args &key output)
@@ -27,27 +43,27 @@ output to *trace-output*.  Returns the shell's exit code."
   (let ((command (apply #'format nil control-string args)))
     #+sbcl
     (sb-impl::process-exit-code
-     (sb-ext:run-program  
+     (sb-ext:run-program
       "/bin/sh"
       (list "-c" command)
       :input nil :output output))
-    
+
     #+(or cmu scl)
     (ext:process-exit-code
-     (ext:run-program  
+     (ext:run-program
       "/bin/sh"
       (list "-c" command)
       :input nil :output output))
 
     #+allegro
     (excl:run-shell-command command :input nil :output output)
-    
+
     #+lispworks
     (system:call-system-showing-output
      command
      :shell-type "/bin/sh"
      :output-stream output)
-    
+
     #+clisp				;XXX not exactly *trace-output*, I know
     (ext:run-shell-command  command :output :terminal :wait t)
 
@@ -59,5 +75,5 @@ output to *trace-output*.  Returns the shell's exit code."
 				 :wait t)))
 
     #-(or openmcl clisp lispworks allegro scl cmu sbcl)
-    (error "RUN-SHELL-PROGRAM not implemented for this Lisp")
+    (error "RUN-SHELL-PROGRAM not implemented for this Lisp.")
     ))