commit 3bbebbb29f6fbbf2988b9f2e75695b7c0b1f1c9b

Author: Andreas Gruenbacher <agruen@gnu.org>

Date:   Wed Feb 7 12:01:22 2018 +0100

    Avoid set_file_attributes sign conversion warnings

    * src/util.c (set_file_attributes): Avoid sign conversion warnings when

    assigning -1 to uid_t / gid_t.

diff --git a/src/util.c b/src/util.c

index b1c7266..1cc08ba 100644

--- a/src/util.c

+++ b/src/util.c

@@ -256,8 +256,8 @@ set_file_attributes (char const *to, enum file_attributes attr,

     }

   if (attr & FA_IDS)

     {

-      static uid_t euid = -1;

-      static gid_t egid = -1;

+      static uid_t euid = (uid_t)-1;

+      static gid_t egid = (gid_t)-1;

       uid_t uid;

       uid_t gid;