findutils: version up to current git master.

4.6.0, the current latest release, is already years old and fails to build
on recent glibc (bundled gnulib is too old).

component/findutils/buildout.cfg

 [buildout]
 extends =
+  ../autoconf/buildout.cfg
+  ../automake/buildout.cfg
+  ../bison/buildout.cfg
   ../coreutils/buildout.cfg
+  ../flex/buildout.cfg
+  ../gettext/buildout.cfg
+  ../git/buildout.cfg
+  ../grep/buildout.cfg
+  ../libtool/buildout.cfg
+  ../m4/buildout.cfg
+  ../tar/buildout.cfg
+  ../texinfo/buildout.cfg
 parts =
   findutils-output
 
+[findutils-source]
+recipe = slapos.recipe.build:gitclone
+repository = https://git.savannah.gnu.org/git/findutils.git
+# READ COMMENT IN [findutils] SECTION BEFORE CHANGING revision !
+revision = 161b83875460da63f2d687c3277521a51d1a16ec
+
 [findutils]
 recipe = slapos.recipe.cmmi
 shared = true
-url = http://ftp.gnu.org/gnu/findutils/findutils-4.4.2.tar.gz
-md5sum = 351cc4adb07d54877fa15f75fb77d39f
+# 4.6.0 release is anterior to glibc>=2.28-related fixes in embedded gnulib
+# Switch back to release tarballs when they do next release, and remove
+# path, configure-command, environment, findutils-source section and all extends
+# except coreutils.
+# Until then, checkout a recent-enough source from repository and build that.
+# It requires some additional preparation steps
+#url = http://ftp.gnu.org/gnu/findutils/findutils-4.6.0.tar.gz
+#md5sum = 9936aa8009438ce185bea2694a997fc1
+path = ${findutils-source:location}
+configure-command =
+  ./bootstrap --skip-po
+  ./configure
+environment =
+  PATH=${autoconf:location}/bin:${automake:location}/bin:${libtool:location}/bin:${git:location}/bin:${gettext:location}/bin:${tar:location}/bin:${coreutils:location}/bin:${grep:location}/bin:${texinfo:location}/bin:${bison:location}/bin:${flex:location}/bin:${m4:location}/bin:%(PATH)s
 
 [findutils-output]
 # Shared binary location to ease migration