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-rw-r--r--src/unistd.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/unistd.rs b/src/unistd.rs
index b7fe567b..2dd5064b 100644
--- a/src/unistd.rs
+++ b/src/unistd.rs
@@ -1994,7 +1994,8 @@ pub enum SysconfVar {
BC_STRING_MAX = libc::_SC_BC_STRING_MAX,
/// Maximum number of simultaneous processes per real user ID.
CHILD_MAX = libc::_SC_CHILD_MAX,
- // _SC_CLK_TCK is obsolete
+ // The number of clock ticks per second.
+ CLK_TCK = libc::_SC_CLK_TCK,
/// Maximum number of weights that can be assigned to an entry of the
/// LC_COLLATE order keyword in the locale definition file
COLL_WEIGHTS_MAX = libc::_SC_COLL_WEIGHTS_MAX,