../common/ns_reads.c: In function 'get_mapped_filter':
../common/ns_internal.h:217:2: error: macro expands to multiple statements [-Werror=multistatement-macros]
  if (((err) = calloc(1, sizeof (struct ns_ldap_error))) == NULL) \
  ^~
../common/ns_reads.c:1364:5: note: in expansion of macro 'MKERROR'
     MKERROR(LOG_WARNING, cookie->errorp,
     ^~~~~~~
../common/ns_reads.c:1363:4: note: some parts of macro expansion are not guarded by this 'if' clause
    if (err)
    ^~
cc1: all warnings being treated as errors