GNU cpio: Add fix for Darwin.

svn path=/nixpkgs/trunk/; revision=22705

pkgs/tools/archivers/cpio/darwin-fix.patch

@@ -0,0 +1,15 @@
+Fix Darwin builds.
+
+From <http://git.savannah.gnu.org/cgit/cpio.git/commit/?id=3a7a1820d4cecbd77c7b74c785af5942510bf080>.
+See also <http://lists.gnu.org/archive/html/bug-cpio/2010-07/msg00001.html>.
+
+diff --git a/src/filetypes.h b/src/filetypes.h
+index f80faab..81f0c32 100644
+--- a/src/filetypes.h
++++ b/src/filetypes.h
+@@ -81,5 +81,3 @@
+ #ifndef S_ISLNK
+ #define lstat stat
+ #endif
+-int lstat ();
+-int stat ();

pkgs/tools/archivers/cpio/default.nix

@@ -1,6 +1,6 @@
 {stdenv, fetchurl}:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation ({
   name = "cpio-2.11";
 
   src = fetchurl {
@@ -34,3 +34,9 @@ stdenv.mkDerivation {
     platforms = stdenv.lib.platforms.all;
   };
 }
+
+//
+
+(if stdenv.isLinux
+ then {}
+ else { patches = [ ./darwin-fix.patch ]; }))