diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 83b01808cd..c2599746d8 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -29,7 +29,6 @@
   #:use-module (guix build-system trivial)
   #:use-module (gnu packages)
   #:use-module (gnu packages base)
-  #:use-module (gnu packages file)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages readline)
   #:use-module (gnu packages linux)
@@ -649,7 +648,18 @@ system administrator.")
                       "")
                      (("^install: (.*)install-sudoers(.*)" _ before after)
                       ;; Don't try to create /etc/sudoers.
-                      (string-append "install: " before after "\n"))))
+                      (string-append "install: " before after "\n")))
+
+                   ;; XXX FIXME sudo 1.8.10p3 was bootstrapped with a
+                   ;; prerelease libtool, which fails on MIPS in the absence
+                   ;; of /usr/bin/file.  As a temporary workaround, we patch
+                   ;; the configure script to hardcode use of the little
+                   ;; endian N32 ABI on MIPS.
+                   ,@(if (equal? "mips64el-linux" (or (%current-target-system)
+                                                      (%current-system)))
+                         '((substitute* "configure"
+                             (("\\$emul") "elf32ltsmipn32")))
+                         '()))
                  %standard-phases)
 
        ;; XXX: The 'testsudoers' test series expects user 'root' to exist, but
@@ -659,12 +669,6 @@ system administrator.")
      `(("groff" ,groff)
        ("linux-pam" ,linux-pam)
        ("coreutils" ,coreutils)))
-    (native-inputs
-     `(;; 'file' is needed by the pre-release libtool on MIPS.
-       ,@(if (equal? "mips64el-linux" (or (%current-target-system)
-                                          (%current-system)))
-             `(("file" ,file))
-             '())))
     (home-page "http://www.sudo.ws/")
     (synopsis "Run commands as root")
     (description
diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index e68ca50b5e..df7cd1b489 100644
--- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -22,7 +22,6 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
-  #:use-module (gnu packages file)
   #:use-module (gnu packages pkg-config))
 
 (define-public libgc-7.2
@@ -76,12 +75,6 @@ C or C++ programs, though that is not its primary goal.")
                (base32
                 "1pdm0h1y7bgkczr8byg20r6bq15m5072cqm5pny4f9crc9gn3yh4"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(;; 'file' is needed by the pre-release libtool on MIPS.
-       ,@(if (equal? "mips64el-linux" (or (%current-target-system)
-                                          (%current-system)))
-             `(("file" ,file))
-             '())))
     (outputs '("out" "debug"))
     (synopsis "Accessing hardware atomic memory update operations")
     (description
@@ -106,13 +99,7 @@ lock-free code, experiment with thread programming paradigms, etc.")
                 "18mg28rr6kwr5clc65k4l4hkyy4kd16amx831sjf8q2lqkbhlck3"))))
 
     ;; New dependencies.
-    (native-inputs
-     `(("pkg-config" ,pkg-config)
-       ;; 'file' is needed by the pre-release libtool on MIPS.
-       ,@(if (equal? "mips64el-linux" (or (%current-target-system)
-                                          (%current-system)))
-             `(("file" ,file))
-             '())))
+    (native-inputs `(("pkg-config" ,pkg-config)))
     (inputs `(("libatomic-ops" ,libatomic-ops)))
 
     ;; 'USE_LIBC_PRIVATES' is now the default.
diff --git a/gnu/packages/gawk.scm b/gnu/packages/gawk.scm
index 737e610ae5..6185409fb7 100644
--- a/gnu/packages/gawk.scm
+++ b/gnu/packages/gawk.scm
@@ -20,7 +20,6 @@
 (define-module (gnu packages gawk)
   #:use-module (guix licenses)
   #:use-module (gnu packages bash)
-  #:use-module (gnu packages file)
   #:use-module (gnu packages libsigsegv)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -56,6 +55,17 @@
                           '((substitute* "extension/Makefile.in"
                               (("^.*: check-for-shared-lib-support" match)
                                (string-append "### " match))))
+                          '())
+
+                    ;; XXX FIXME gawk 4.1.1 was bootstrapped with a prerelease
+                    ;; libtool, which fails on MIPS in the absence of
+                    ;; /usr/bin/file.  As a temporary workaround, we patch
+                    ;; the configure script to hardcode use of the little
+                    ;; endian N32 ABI on MIPS.
+                    ,@(if (equal? "mips64el-linux" (or (%current-target-system)
+                                                       (%current-system)))
+                          '((substitute* "extension/configure"
+                              (("\\$emul") "elf32ltsmipn32")))
                           '())))
                 %standard-phases)))
    (inputs `(("libsigsegv" ,libsigsegv)
@@ -63,12 +73,7 @@
              ,@(if (%current-target-system)
                    `(("bash" ,bash))
                    '())))
-   (native-inputs
-    `(;; 'file' is needed by the pre-release libtool on MIPS.
-      ,@(if (equal? "mips64el-linux" (or (%current-target-system)
-                                         (%current-system)))
-            `(("file" ,file))
-            '())))
+
    (home-page "http://www.gnu.org/software/gawk/")
    (synopsis "A text scanning and processing language")
    (description
diff --git a/gnu/packages/libffi.scm b/gnu/packages/libffi.scm
index 067838f8e2..33e10d6fc2 100644
--- a/gnu/packages/libffi.scm
+++ b/gnu/packages/libffi.scm
@@ -1,6 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -19,7 +18,6 @@
 
 (define-module (gnu packages libffi)
   #:use-module (gnu packages)
-  #:use-module (gnu packages file)
   #:use-module (guix licenses)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -45,12 +43,6 @@
               (base32
                "1sznmrhcswwbyqla9y2ximlkzbxks59wjfs3lh7qf8ayranyxzlp"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(;; 'file' is needed by the pre-release libtool on MIPS.
-       ,@(if (equal? "mips64el-linux" (or (%current-target-system)
-                                          (%current-system)))
-             `(("file" ,file))
-             '())))
     (arguments `(#:phases (alist-cons-after 'install 'post-install
                                             ,post-install-phase
                                             %standard-phases)))