GNU Coreutils bug 21062 coreutils-8.24 - cp(1) check failures on tmpfs filesystem (Solaris 10 / Solaris 11)

/* Avoid spoiling errno when we are going to ignore it immediately anyway */

--- coreutils-9.5/lib/set-permissions.c.orig
+++ coreutils-9.5/lib/set-permissions.c
@@ -231,6 +231,7 @@
         {
           if (errno == ENOSYS)
             {
+              errno = 0;
               *must_chmod = true;
               return 0;
             }
@@ -265,6 +266,7 @@
       {
         if (errno == ENOSYS || errno == EOPNOTSUPP)
           {
+            errno = 0;
             *must_chmod = true;
             return 0;
           }
@@ -635,6 +637,7 @@
           if ((errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
               && acl_nontrivial (ctx->count, ctx->entries) == 0)
             ret = 0;
+            errno = 0; 
         }
       else
         *acls_set = true;
@@ -652,6 +655,7 @@
           if ((errno == ENOSYS || errno == EINVAL || errno == ENOTSUP)
               && acl_ace_nontrivial (ctx->ace_count, ctx->ace_entries) == 0)
             ret = 0;
+            errno = 0; 
         }
       else
         *acls_set = true;