r3744: *** empty log message ***

[lml.git] / files.lisp

diff --git a/files.lisp b/files.lisp
index fd2366b3ff30961f8174128324b6541a2b7272d8..bdf4e96ca1481193fc621f30940f478e106f6173 100644 (file)
--- a/files.lisp
+++ b/files.lisp
@@ -43,14 +43,20 @@
          (parse-namestring f)
        f))))
 
-(defmacro with-dir ((output-dir &key sources) &body body)
-  (when (stringp output-dir)
-    (setq output-dir (parse-namestring output-dir)))
-  (unless sources
-    (setq sources output-dir))
-  `(let ((*output-dir* ,output-dir)
-        (*sources-dir* ,sources))
-     ,@body))
+(defmacro with-dir ((output &key sources) &body body)
+  (let ((output-dir (gensym))
+       (sources-dir (gensym)))
+  `(let ((,output-dir ,output)
+        (,sources-dir ,sources))
+    (when (stringp ,output-dir)
+      (setq ,output-dir (parse-namestring ,output-dir)))
+    (when (stringp ,sources-dir)
+      (setq ,sources-dir (parse-namestring ,sources-dir)))
+    (unless ,sources-dir
+      (setq ,sources-dir ,output-dir))
+    (let ((*output-dir* ,output-dir)
+         (*sources-dir* ,sources-dir))
+      ,@body))))
 
 (defun lml-load-path (file)
   (if (probe-file file)