The method to override system calls to libc is not portable. Writing to the syslog works, test is unnecessary. --- libqb-1.0.2/tests/check_log.c.orig 2017-10-10 11:32:27.247066784 +0000 +++ libqb-1.0.2/tests/check_log.c 2017-10-10 11:33:47.809174401 +0000 @@ -894,8 +894,9 @@ #endif add_tcase(s, tc, test_extended_information); add_tcase(s, tc, test_zero_tags); +#ifndef QB_SOLARIS add_tcase(s, tc, test_syslog); - +#endif return s; }