Seen with Ubuntu 18.04
gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
mech/gss_krb5.c: In function ‘gss_krb5_ccache_name’:
mech/gss_krb5.c:501:18: error: the address of ‘buffer’ will always evaluate as ‘true’ [-Werror=address]
_mg_buffer_zero(&buffer);
^
mech/mech_locl.h:72:7: note: in definition of macro ‘_mg_buffer_zero’
if (buffer) { \
^~~~~~
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
5e690fe70c