policycoreutils: fix build on i686 for ZHF

pkgs/os-specific/linux/policycoreutils/default.nix

@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
     sha256 = "1lpwxr5hw3dwhlp2p7y8jcr18mvfcrclwd8c2idz3lmmb3pglk46";
   };
 
-  patchPhase = ''
+  preConfigure = ''
     substituteInPlace po/Makefile --replace /usr/bin/install install
     find . -type f -exec sed -i 's,/usr/bin/python,${python}/bin/python,' {} \;
   '';
@@ -36,6 +36,10 @@ stdenv.mkDerivation rec {
 
   makeFlags = "PREFIX=$(out) DESTDIR=$(out) LOCALEDIR=$(out)/share/locale";
 
+  patches = [ ./size_format.patch ];
+
+  patchFlags = [ "-p0" ];
+
   meta = with stdenv.lib; {
     description = "SELinux policy core utilities";
     license = licenses.gpl2;