diff options
Diffstat (limited to 'libguile/posix.c')
-rw-r--r-- | libguile/posix.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libguile/posix.c b/libguile/posix.c index b9097d41a..383ab76fd 100644 --- a/libguile/posix.c +++ b/libguile/posix.c @@ -265,8 +265,10 @@ SCM_DEFINE (scm_getgroups, "getgroups", 0, 0, 0, GETGROUPS_T *groups; ngroups = getgroups (0, NULL); - if (ngroups <= 0) + if (ngroups < 0) SCM_SYSERROR; + else if (ngroups == 0) + return scm_c_make_vector (0, SCM_BOOL_F); size = ngroups * sizeof (GETGROUPS_T); groups = scm_malloc (size); |