Re: [PATCH] file depends upon itself!

[John Darrington <john@darrington.wattle.id.au>]

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Try this one.

J'

On Fri, Dec 13, 2013 at 02:01:43PM +0100, Ludovic Court??s wrote:
     John Darrington <john@darrington.wattle.id.au> skribis:
     
     > The file command is somewhat unusual in that it depends upon a natively compiled
     > version of itself.
     
     Like Guile.  Initially I added this field for this purpose:
     
       (self-native-input? #t)
     
     But what you did is better, and is enough to get rid of
     ???self-native-input????.
     
     However, the patch doesn???t apply on ???master???.  Could you check
     what???s going on?
     
     Also, make sure the commit log specifies the changes (like ???Add
     ???native-inputs??? field???) rather than the rationale (info "(standards)
     Change Log Concepts").
     
     Thanks,
     Ludo???.

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From 5127a509f71d7308ce622d30c6f0dd55845d9890 Mon Sep 17 00:00:00 2001
From: John Darrington <jmd@gnu.org>
Date: Fri, 13 Dec 2013 10:52:12 +0100
Subject: [PATCH] gnu: file: Fixed cross-compilation.

* gnu/packages/file.scm (file): [(eq? (%current-target-system) #f)] Add native-inputs.
---
 gnu/packages/file.scm |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/gnu/packages/file.scm b/gnu/packages/file.scm
index 1e09fb7..63a9df4 100644
--- a/gnu/packages/file.scm
+++ b/gnu/packages/file.scm
@@ -34,6 +34,9 @@
             (sha256 (base32
                      "08ix4xrvan0k80n0l5lqfmc4azjv5lyhvhwdxny4r09j5smhv78r"))))
    (build-system gnu-build-system)
+   (native-inputs
+    ;; This package depends upon a native install of itself.
+     (if (%current-target-system) `(("file" ,file)) '() ))
    (synopsis "file, a file type guesser")
    (description
     "The file command is a file type guesser, a command-line tool that tells
-- 
1.7.10.4