diff --git a/libc-test/semver/redox.txt b/libc-test/semver/redox.txt
index eeba3a35a54c..b7aaa5706d62 100644
--- a/libc-test/semver/redox.txt
+++ b/libc-test/semver/redox.txt
@@ -251,8 +251,27 @@ _PC_SOCK_MAXBUF
 _PC_SYMLINK_MAX
 _PC_SYNC_IO
 _POSIX_VDISABLE
+_SC_ARG_MAX
+_SC_CHILD_MAX
+_SC_CLK_TCK
+_SC_GETGR_R_SIZE_MAX
+_SC_GETPW_R_SIZE_MAX
+_SC_HOST_NAME_MAX
 _SC_LOGIN_NAME_MAX
+_SC_NGROUPS_MAX
+_SC_NPROCESSORS_CONF
+_SC_NPROCESSORS_ONLN
+_SC_OPEN_MAX
+_SC_PAGESIZE
+_SC_PAGE_SIZE
+_SC_REALTIME_SIGNALS
 _SC_RE_DUP_MAX
+_SC_SIGQUEUE_MAX
+_SC_STREAM_MAX
+_SC_SYMLOOP_MAX
+_SC_TTY_NAME_MAX
+_SC_TZNAME_MAX
+_SC_VERSION
 __WALL
 __WCLONE
 __WNOTHREAD
diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
index bce1ee96d884..3f0bf0bb5954 100644
--- a/src/unix/redox/mod.rs
+++ b/src/unix/redox/mod.rs
@@ -1002,13 +1002,22 @@ pub const _SC_PAGESIZE: c_int = 30;
 pub const _SC_PAGE_SIZE: c_int = 30;
 // ...
 pub const _SC_RE_DUP_MAX: c_int = 44;
+
+pub const _SC_NPROCESSORS_CONF: c_int = 57;
+pub const _SC_NPROCESSORS_ONLN: c_int = 58;
+
 // ...
+pub const _SC_GETGR_R_SIZE_MAX: c_int = 69;
+pub const _SC_GETPW_R_SIZE_MAX: c_int = 70;
 pub const _SC_LOGIN_NAME_MAX: c_int = 71;
 pub const _SC_TTY_NAME_MAX: c_int = 72;
 // ...
 pub const _SC_SYMLOOP_MAX: c_int = 173;
 // ...
 pub const _SC_HOST_NAME_MAX: c_int = 180;
+// ...
+pub const _SC_SIGQUEUE_MAX: c_int = 190;
+pub const _SC_REALTIME_SIGNALS: c_int = 191;
 // } POSIX.1
 
 // confstr