diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
index 877681e4968a5..7f1e6d0bbb042 100644
--- a/libc-test/semver/dragonfly.txt
+++ b/libc-test/semver/dragonfly.txt
@@ -622,7 +622,16 @@ MINCORE_REFERENCED
 MINCORE_REFERENCED_OTHER
 MINCORE_SUPER
 MINSEC
+MNT_AUTOMOUNTED
+MNT_EXPUBLIC
 MNT_FORCE
+MNT_IGNORE
+MNT_LOCAL
+MNT_NODEV
+MNT_QUOTA
+MNT_ROOTFS
+MNT_TRIM
+MNT_USER
 MOD_CLKA
 MOD_CLKB
 MOD_ESTERROR
diff --git a/libc-test/semver/netbsd.txt b/libc-test/semver/netbsd.txt
index fe096913cc4ef..97d76cb3049d2 100644
--- a/libc-test/semver/netbsd.txt
+++ b/libc-test/semver/netbsd.txt
@@ -645,7 +645,25 @@ MCL_CURRENT
 MCL_FUTURE
 MDMBUF
 MINSEC
+MNT_ACLS
+MNT_AUTOMOUNTED
+MNT_DISCARD
+MNT_EXTATTR
 MNT_FORCE
+MNT_IGNORE
+MNT_LOCAL
+MNT_LOG
+MNT_NFS4ACLS
+MNT_NOATIME
+MNT_NOCOREDUMP
+MNT_NODEV
+MNT_NODEVMTIME
+MNT_POSIX1EACLS
+MNT_QUOTA
+MNT_RELATIME
+MNT_SOFTDEP
+MNT_SYMPERM
+MNT_UNION
 MOD_CLKA
 MOD_CLKB
 MOD_ESTERROR
diff --git a/libc-test/semver/openbsd.txt b/libc-test/semver/openbsd.txt
index 0259170e5d12e..d540671e1b037 100644
--- a/libc-test/semver/openbsd.txt
+++ b/libc-test/semver/openbsd.txt
@@ -484,7 +484,23 @@ MCL_CURRENT
 MCL_FUTURE
 MDMBUF
 MINSIGSTKSZ
+MNT_DEFEXPORTED
+MNT_DELEXPORT
+MNT_DOOMED
+MNT_EXPORTANON
+MNT_EXRDONLY
 MNT_FORCE
+MNT_LOCAL
+MNT_NOATIME
+MNT_NODEV
+MNT_NOPERM
+MNT_QUOTA
+MNT_ROOTFS
+MNT_SOFTDEP
+MNT_STALLED
+MNT_SWAPPABLE
+MNT_WANTRDWR
+MNT_WXALLOWED
 MON_1
 MON_10
 MON_11
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index 5ea327ac8dac4..70fe6e2edd03b 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -1409,6 +1409,16 @@ pub const MSG_FBLOCKING: ::c_int = 0x00010000;
 pub const MSG_FNONBLOCKING: ::c_int = 0x00020000;
 pub const MSG_FMASK: ::c_int = 0xFFFF0000;
 
+// sys/mount.h
+pub const MNT_NODEV: ::c_int = 0x00000010;
+pub const MNT_AUTOMOUNTED: ::c_int = 0x00000020;
+pub const MNT_TRIM: ::c_int = 0x01000000;
+pub const MNT_LOCAL: ::c_int = 0x00001000;
+pub const MNT_QUOTA: ::c_int = 0x00002000;
+pub const MNT_ROOTFS: ::c_int = 0x00004000;
+pub const MNT_USER: ::c_int = 0x00008000;
+pub const MNT_IGNORE: ::c_int = 0x00800000;
+
 // utmpx entry types
 pub const EMPTY: ::c_short = 0;
 pub const RUN_LVL: ::c_short = 1;
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index a2f175b6fb963..e52e0fd338acf 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -2280,7 +2280,6 @@ pub const MNT_MULTILABEL: ::c_int = 0x04000000;
 pub const MNT_NFS4ACLS: ::c_int = 0x00000010;
 pub const MNT_SNAPSHOT: ::c_int = 0x01000000;
 pub const MNT_UNION: ::c_int = 0x00000020;
-pub const MNT_EXPUBLIC: ::c_int = 0x20000000;
 pub const MNT_NONBUSY: ::c_int = 0x04000000;
 
 pub const SCM_CREDS2: ::c_int = 0x08;
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index db21597d98168..9aefb36e4eb3e 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -630,6 +630,7 @@ pub const MAP_FAILED: *mut ::c_void = !0 as *mut ::c_void;
 pub const MCL_CURRENT: ::c_int = 0x0001;
 pub const MCL_FUTURE: ::c_int = 0x0002;
 
+pub const MNT_EXPUBLIC: ::c_int = 0x20000000;
 pub const MNT_NOATIME: ::c_int = 0x10000000;
 pub const MNT_NOCLUSTERR: ::c_int = 0x40000000;
 pub const MNT_NOCLUSTERW: ::c_int = 0x80000000;
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index 9607d4d97ff91..b71531c253db1 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -419,6 +419,11 @@ pub const MADV_WILLNEED: ::c_int = 3;
 pub const MADV_DONTNEED: ::c_int = 4;
 pub const MADV_FREE: ::c_int = 6;
 
+// sys/fstypes.h in NetBSD, or sys/mount.h in OpenBSD
+pub const MNT_NODEV: ::c_int = 0x00000010;
+pub const MNT_LOCAL: ::c_int = 0x00001000;
+pub const MNT_QUOTA: ::c_int = 0x00002000;
+
 pub const AF_UNSPEC: ::c_int = 0;
 pub const AF_LOCAL: ::c_int = 1;
 pub const AF_UNIX: ::c_int = AF_LOCAL;
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index bfe2de0839d77..4b201e3400665 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -1785,6 +1785,23 @@ pub const BIOCSDLT: ::c_ulong = 0x80044278;
 pub const BIOCGSEESENT: ::c_ulong = 0x40044276;
 pub const BIOCSSEESENT: ::c_ulong = 0x80044277;
 
+// <sys/fstypes.h>
+pub const MNT_UNION: ::c_int = 0x00000020;
+pub const MNT_NOCOREDUMP: ::c_int = 0x00008000;
+pub const MNT_RELATIME: ::c_int = 0x00020000;
+pub const MNT_IGNORE: ::c_int = 0x00100000;
+pub const MNT_NFS4ACLS: ::c_int = 0x00200000;
+pub const MNT_DISCARD: ::c_int = 0x00800000;
+pub const MNT_EXTATTR: ::c_int = 0x01000000;
+pub const MNT_LOG: ::c_int = 0x02000000;
+pub const MNT_NOATIME: ::c_int = 0x04000000;
+pub const MNT_AUTOMOUNTED: ::c_int = 0x10000000;
+pub const MNT_SYMPERM: ::c_int = 0x20000000;
+pub const MNT_NODEVMTIME: ::c_int = 0x40000000;
+pub const MNT_SOFTDEP: ::c_int = 0x80000000;
+pub const MNT_POSIX1EACLS: ::c_int = 0x00000800;
+pub const MNT_ACLS: ::c_int = MNT_POSIX1EACLS;
+
 //<sys/timex.h>
 pub const NTP_API: ::c_int = 4;
 pub const MAXPHASE: ::c_long = 500000000;
diff --git a/src/unix/bsd/netbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsd/mod.rs
index f63ad9e638600..3c966990a50cd 100644
--- a/src/unix/bsd/netbsdlike/openbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsd/mod.rs
@@ -1639,6 +1639,22 @@ pub const SF_ARCHIVED: ::c_uint = 0x00010000;
 pub const SF_IMMUTABLE: ::c_uint = 0x00020000;
 pub const SF_APPEND: ::c_uint = 0x00040000;
 
+// sys/mount.h
+pub const MNT_NOPERM: ::c_int = 0x00000020;
+pub const MNT_WXALLOWED: ::c_int = 0x00000800;
+pub const MNT_EXRDONLY: ::c_int = 0x00000080;
+pub const MNT_DEFEXPORTED: ::c_int = 0x00000200;
+pub const MNT_EXPORTANON: ::c_int = 0x00000400;
+pub const MNT_ROOTFS: ::c_int = 0x00004000;
+pub const MNT_NOATIME: ::c_int = 0x00008000;
+pub const MNT_DELEXPORT: ::c_int = 0x00020000;
+pub const MNT_STALLED: ::c_int = 0x00100000;
+pub const MNT_SWAPPABLE: ::c_int = 0x00200000;
+pub const MNT_WANTRDWR: ::c_int = 0x02000000;
+pub const MNT_SOFTDEP: ::c_int = 0x04000000;
+pub const MNT_DOOMED: ::c_int = 0x08000000;
+
+// For use with vfs_fsync and getfsstat
 pub const MNT_WAIT: ::c_int = 1;
 pub const MNT_NOWAIT: ::c_int = 2;
 pub const MNT_LAZY: ::c_int = 3;