distro: Add GNU Findutils.

* distro/base.scm (findutils): New variable.
* distro/findutils-absolute-paths.patch: New file.
* Makefile.am (nobase_dist_guilemodule_DATA): Add it.

Makefile.am

@@ -41,6 +41,7 @@ nobase_dist_guilemodule_DATA =			\
   distro/m4-readlink-EINVAL.patch		\
   distro/m4-s_isdir.patch			\
   distro/make-impure-dirs.patch			\
+  distro/findutils-absolute-paths.patch		\
   distro/readline-link-ncurses.patch
 
 nobase_nodist_guilemodule_DATA = $(GOBJECTS)

distro/base.scm

@@ -177,6 +177,48 @@ (define-public tar
    (license "GPLv3+")
    (home-page "http://www.gnu.org/software/tar/")))
 
+(define-public findutils
+  (package
+   (name "findutils")
+   (version "4.4.2")
+   (source (origin
+            (method http-fetch)
+            (uri (string-append "http://ftp.gnu.org/gnu/findutils/findutils-"
+                                version ".tar.gz"))
+            (sha256
+             (base32
+              "0amn0bbwqvsvvsh6drfwz20ydc2czk374lzw5kksbh6bf78k4ks3"))))
+   (build-system gnu-build-system)
+   (native-inputs
+    `(("patch/absolute-paths"
+       ,(search-path %load-path "distro/findutils-absolute-paths.patch"))))
+   (arguments
+    (case-lambda
+      ((system)
+       `(#:patches (list (assoc-ref %build-inputs "patch/absolute-paths"))))
+      ((system cross-system)
+       ;; Work around cross-compilation failure.
+       ;; See <http://savannah.gnu.org/bugs/?27299#comment1>.
+       `(#:configure-flags '("gl_cv_func_wcwidth_works=yes")
+         ,@(arguments cross-system)))))
+   (description "Basic directory searching utilities of the GNU operating
+system")
+   (long-description
+    "The GNU Find Utilities are the basic directory searching utilities of
+the GNU operating system.  These programs are typically used in conjunction
+with other programs to provide modular and powerful directory search and file
+locating capabilities to other commands.
+
+The tools supplied with this package are:
+
+  * find - search for files in a directory hierarchy;
+  * locate - list files in databases that match a pattern;
+  * updatedb - update a file name database;
+  * xargs - build and execute command lines from standard input.
+")
+   (license "GPLv3+")
+   (home-page "http://www.gnu.org/software/findutils/")))
+
 (define-public m4
   (package
    (name "m4")

distro/findutils-absolute-paths.patch

@@ -0,0 +1,29 @@
+Fix use of LFS-style absolute paths.
+
+Patches from Nixpkgs by Armijn Hemel <armijn@gpl-violations.org>
+and Wouter den Breejen <uu@denbreejen.net>.
+
+diff -ruN findutils-4.2.20/locate/updatedb.sh findutils-4.2.20.new/locate/updatedb.sh
+--- findutils-4.2.20/locate/updatedb.sh	2005-01-24 17:12:35.000000000 +0100
++++ findutils-4.2.20.new/locate/updatedb.sh	2005-08-23 14:37:10.000000000 +0200
+@@ -141,7 +141,7 @@
+ : ${code:=${LIBEXECDIR}/@code@}
+ 
+ 
+-PATH=/bin:/usr/bin:${BINDIR}; export PATH
++PATH=/bin:/usr/bin:${BINDIR}:${PATH}; export PATH
+ 
+ : ${PRUNEFS="nfs NFS proc afs proc smbfs autofs iso9660 ncpfs coda devpts ftpfs devfs mfs sysfs shfs"}
+ 
+diff -Naur findutils-4.2.30/xargs/xargs.c findutils-4.2.30_new/xargs/xargs.c
+--- findutils-4.2.30/xargs/xargs.c	2007-02-27 11:21:08.000000000 +0100
++++ findutils-4.2.30_new/xargs/xargs.c	2007-07-17 19:02:05.000000000 +0200
+@@ -402,7 +402,7 @@
+   int show_limits = 0;			/* --show-limits */
+   int always_run_command = 1;
+   char *input_file = "-"; /* "-" is stdin */
+-  char *default_cmd = "/bin/echo";
++  char *default_cmd = "echo";
+   int (*read_args) PARAMS ((void)) = read_line;
+   void (*act_on_init_result)(void) = noop;
+   int env_too_big = 0;