ADDED   pathname-expand/pathname-expand.egg
Index: pathname-expand/pathname-expand.egg
==================================================================
--- /dev/null
+++ pathname-expand/pathname-expand.egg
@@ -0,0 +1,4 @@
+((license "BSD")
+ (category os)
+ (author "The CHICKEN team")
+ (components (extension pathname-expand)))

Index: pathname-expand/pathname-expand.scm
==================================================================
--- pathname-expand/pathname-expand.scm
+++ pathname-expand/pathname-expand.scm
@@ -33,12 +33,13 @@
 ; OF THE POSSIBILITY OF SUCH DAMAGE.
 
 (module pathname-expand
     (pathname-expand)
 
-(import chicken scheme)
-(use srfi-13 files posix)
+(import (chicken base) (chicken pathname) (chicken condition) (chicken platform) scheme)
+(import (chicken fixnum) (chicken process-context) (chicken process-context posix))
+(import srfi-13 (chicken file) )
 
 ;; Expand pathname starting with "~", and/or apply base directory to
 ;; relative pathname
 ;
 ; Inspired by Gambit's "path-expand" procedure.