diff --git a/libc-test/semver/apple.txt b/libc-test/semver/apple.txt
index b1911e290dad4..ce9c6097bbb88 100644
--- a/libc-test/semver/apple.txt
+++ b/libc-test/semver/apple.txt
@@ -2216,6 +2216,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigwait
 sockaddr_ctl
 sockaddr_dl
diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
index 20e8a515d36f4..8135be3b4948d 100644
--- a/libc-test/semver/dragonfly.txt
+++ b/libc-test/semver/dragonfly.txt
@@ -1538,6 +1538,7 @@ shmget
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index 914808b08af5e..1144c4d4c2481 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -2192,6 +2192,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo
diff --git a/libc-test/semver/netbsd.txt b/libc-test/semver/netbsd.txt
index e36d33224aa50..353b1e7356ff5 100644
--- a/libc-test/semver/netbsd.txt
+++ b/libc-test/semver/netbsd.txt
@@ -1538,6 +1538,7 @@ shmid_ds
 sigaltstack
 sigevent
 siginfo_t
+sigsuspend
 sigtimedwait
 sigwait
 sigwaitinfo
diff --git a/libc-test/semver/openbsd.txt b/libc-test/semver/openbsd.txt
index 755983539ac8f..fd4563212d60d 100644
--- a/libc-test/semver/openbsd.txt
+++ b/libc-test/semver/openbsd.txt
@@ -1260,6 +1260,7 @@ shmget
 shmid_ds
 sigaltstack
 siginfo_t
+sigsuspend
 sigwait
 sockaddr_dl
 sockpeercred
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index 1dd21c7adaeb0..9a2e6c463d36b 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -761,6 +761,7 @@ extern "C" {
     )]
     #[cfg_attr(target_os = "netbsd", link_name = "__sigaltstack14")]
     pub fn sigaltstack(ss: *const stack_t, oss: *mut stack_t) -> ::c_int;
+    pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn sem_close(sem: *mut sem_t) -> ::c_int;
     pub fn getdtablesize() -> ::c_int;
     pub fn getgrnam_r(
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index a7d1719983c8f..e7b0f34dd371a 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -1782,6 +1782,7 @@ extern "C" {
         groupcount: *mut ::c_int,
     ) -> ::c_int;
     pub fn sigaltstack(ss: *const stack_t, oss: *mut stack_t) -> ::c_int;
+    pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn sem_close(sem: *mut sem_t) -> ::c_int;
     pub fn getdtablesize() -> ::c_int;
     pub fn getgrnam_r(
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index 515c0037b42d2..c68cfba3c9932 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -2952,6 +2952,7 @@ extern "C" {
         result: *mut *mut ::group,
     ) -> ::c_int;
     pub fn sigaltstack(ss: *const stack_t, oss: *mut stack_t) -> ::c_int;
+    pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn sem_close(sem: *mut sem_t) -> ::c_int;
     pub fn getdtablesize() -> ::c_int;