graft: Remove work-around for old guile.

* guix/build/graft.scm (mkdir-p*): Remove function.
(rewrite-directory): Switch from mkdir-p* to mkdir-p.

Change-Id: Ib6a80648d271c19093c05af84acb967e069ccc19

guix/build/graft.scm

@@ -312,33 +312,6 @@ (define (exit-on-exception proc)
           (print-exception port #f key args)
           (primitive-exit 1))))))
 
-;; We need this as long as we support Guile < 2.0.13.
-(define* (mkdir-p* dir #:optional (mode #o755))
-  "This is a variant of 'mkdir-p' that works around
-<http://bugs.gnu.org/24659> by passing MODE explicitly in each 'mkdir' call."
-  (define absolute?
-    (string-prefix? "/" dir))
-
-  (define not-slash
-    (char-set-complement (char-set #\/)))
-
-  (let loop ((components (string-tokenize dir not-slash))
-             (root       (if absolute?
-                             ""
-                             ".")))
-    (match components
-      ((head tail ...)
-       (let ((path (string-append root "/" head)))
-         (catch 'system-error
-           (lambda ()
-             (mkdir path mode)
-             (loop tail path))
-           (lambda args
-             (if (= EEXIST (system-error-errno args))
-                 (loop tail path)
-                 (apply throw args))))))
-      (() #t))))
-
 (define* (rewrite-directory directory output mapping
                             #:optional (store (%store-directory)))
   "Copy DIRECTORY to OUTPUT, replacing strings according to MAPPING, a list of
@@ -387,7 +360,7 @@ (define (destination file)
   (define (rewrite-leaf file)
     (let ((stat (lstat file))
           (dest (destination file)))
-      (mkdir-p* (dirname dest))
+      (mkdir-p (dirname dest))
       (case (stat:type stat)
         ((symlink)
          (let ((target (readlink file)))
@@ -406,7 +379,7 @@ (define (rewrite-leaf file)
                                            store)
                  (chmod output (stat:perms stat)))))))
         ((directory)
-         (mkdir-p* dest))
+         (mkdir-p dest))
         (else
          (error "unsupported file type" stat)))))