Make ksu work when unsetenv() returns NULL Some older platforms (OS X 10.4, glibc 2.2.1) declare unsetenv() as returning void, as does ksu's compatibility definition of unsetenv(). Don't use the return value in get_configured_defccname(). https://github.com/krb5/krb5/commit/7eee546db10e907666e02fdded4f512e8d0faf4c Author: Greg Hudson Commit: 7eee546db10e907666e02fdded4f512e8d0faf4c Branch: master src/clients/ksu/main.c | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-)