diff --git a/meson.build b/meson.build
index 641a16008..e0dedd8f5 100644
--- a/meson.build
+++ b/meson.build
@@ -420,6 +420,8 @@ functions = [
   'wcrtomb',
   'wcslen',
   'wcsnlen',
+  'sysctlbyname',
+  '_NSGetEnviron',
 ]
 
 if glib_conf.has('HAVE_SYS_STATVFS_H')