diff --git a/README.md b/README.md
index 4885cc9..1caab85 100644
--- a/README.md
+++ b/README.md
@@ -45,8 +45,9 @@
 ```
 
 All structs implemented by the libc crate have the `Copy` and `Clone` traits
-implemented for them. The additional traits of `Debug, `Eq`, and `PartialEq`
-can be enabled with the *extra_traits* feature (requires Rust 1.25 or newer):
+implemented for them. The additional traits of `Debug, `Eq`, `Hash`, and
+`PartialEq` can be enabled with the *extra_traits* feature (requires Rust 1.25
+or newer):
 
 ```toml
 [dependencies]
diff --git a/src/macros.rs b/src/macros.rs
index 3877797..aabe6e8 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -39,7 +39,7 @@
         __item! {
             #[repr(C)]
             $(#[$attr])*
-            #[cfg_attr(feature = "extra_traits", derive(Debug, Eq, PartialEq))]
+            #[cfg_attr(feature = "extra_traits", derive(Debug, Eq, Hash, PartialEq))]
             pub $t $i { $($field)* }
         }
         impl ::dox::Copy for $i {}
diff --git a/src/unix/bsd/apple/b32.rs b/src/unix/bsd/apple/b32.rs
index 4950c19..284eae3 100644
--- a/src/unix/bsd/apple/b32.rs
+++ b/src/unix/bsd/apple/b32.rs
@@ -73,6 +73,13 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_attr_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.__sig.hash(state);
+        self.__opaque.hash(state);
+    }
+}
 
 pub const __PTHREAD_MUTEX_SIZE__: usize = 40;
 pub const __PTHREAD_COND_SIZE__: usize = 24;
diff --git a/src/unix/bsd/apple/b64.rs b/src/unix/bsd/apple/b64.rs
index c5f0038..2161fc4 100644
--- a/src/unix/bsd/apple/b64.rs
+++ b/src/unix/bsd/apple/b64.rs
@@ -78,6 +78,13 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_attr_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.__sig.hash(state);
+        self.__opaque.hash(state);
+    }
+}
 
 pub const __PTHREAD_MUTEX_SIZE__: usize = 56;
 pub const __PTHREAD_COND_SIZE__: usize = 40;
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 16ce25f..0899591 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -608,6 +608,12 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for semun {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        unsafe { self.val.hash(state) };
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for proc_threadinfo {
     fn eq(&self, other: &proc_threadinfo) -> bool {
         self.pth_user_time == other.pth_user_time
@@ -648,6 +654,22 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for proc_threadinfo {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.pth_user_time.hash(state);
+        self.pth_system_time.hash(state);
+        self.pth_cpu_usage.hash(state);
+        self.pth_policy.hash(state);
+        self.pth_run_state.hash(state);
+        self.pth_flags.hash(state);
+        self.pth_sleep_time.hash(state);
+        self.pth_curpri.hash(state);
+        self.pth_priority.hash(state);
+        self.pth_maxpriority.hash(state);
+        self.pth_name.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for statfs {
     fn eq(&self, other: &statfs) -> bool {
         self.f_bsize == other.f_bsize
@@ -702,6 +724,27 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for statfs {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.f_bsize.hash(state);
+        self.f_iosize.hash(state);
+        self.f_blocks.hash(state);
+        self.f_bfree.hash(state);
+        self.f_bavail.hash(state);
+        self.f_files.hash(state);
+        self.f_ffree.hash(state);
+        self.f_fsid.hash(state);
+        self.f_owner.hash(state);
+        self.f_flags.hash(state);
+        self.f_fssubtype.hash(state);
+        self.f_fstypename.hash(state);
+        self.f_type.hash(state);
+        self.f_mntonname.hash(state);
+        self.f_mntfromname.hash(state);
+        self.f_reserved.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for dirent {
     fn eq(&self, other: &dirent) -> bool {
         self.d_ino == other.d_ino
@@ -732,6 +775,17 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for dirent {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d_ino.hash(state);
+        self.d_seekoff.hash(state);
+        self.d_reclen.hash(state);
+        self.d_namlen.hash(state);
+        self.d_type.hash(state);
+        self.d_name.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_rwlock_t {
     fn eq(&self, other: &pthread_rwlock_t) -> bool {
         self.__sig == other.__sig
@@ -754,6 +808,13 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_rwlock_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.__sig.hash(state);
+        self.__opaque.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_mutex_t {
     fn eq(&self, other: &pthread_mutex_t) -> bool {
         self.__sig == other.__sig
@@ -776,6 +837,13 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_mutex_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.__sig.hash(state);
+        self.__opaque.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_cond_t {
     fn eq(&self, other: &pthread_cond_t) -> bool {
         self.__sig == other.__sig
@@ -798,6 +866,13 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_cond_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.__sig.hash(state);
+        self.__opaque.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for sockaddr_storage {
     fn eq(&self, other: &sockaddr_storage) -> bool {
         self.ss_len == other.ss_len
@@ -830,6 +905,16 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for sockaddr_storage {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ss_len.hash(state);
+        self.ss_family.hash(state);
+        self.__ss_pad1.hash(state);
+        self.__ss_align.hash(state);
+        self.__ss_pad2.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for utmpx {
     fn eq(&self, other: &utmpx) -> bool {
         self.ut_user
@@ -866,6 +951,19 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for utmpx {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ut_user.hash(state);
+        self.ut_id.hash(state);
+        self.ut_line.hash(state);
+        self.ut_pid.hash(state);
+        self.ut_type.hash(state);
+        self.ut_tv.hash(state);
+        self.ut_host.hash(state);
+        self.ut_pad.hash(state);
+    }
+}
 
 pub const _UTX_USERSIZE: usize = 256;
 pub const _UTX_LINESIZE: usize = 32;
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index 74bbaf7..0541c5a 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -162,6 +162,14 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for sockaddr_un {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.sun_len.hash(state);
+        self.sun_family.hash(state);
+        self.sun_path.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for utsname {
     fn eq(&self, other: &utsname) -> bool {
         self.sysname
@@ -204,6 +212,16 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for utsname {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.sysname.hash(state);
+        self.nodename.hash(state);
+        self.release.hash(state);
+        self.version.hash(state);
+        self.machine.hash(state);
+    }
+}
 
 pub const LC_ALL: ::c_int = 0;
 pub const LC_COLLATE: ::c_int = 1;
diff --git a/src/unix/notbsd/android/b64/mod.rs b/src/unix/notbsd/android/b64/mod.rs
index c5a6a79..1da667b 100644
--- a/src/unix/notbsd/android/b64/mod.rs
+++ b/src/unix/notbsd/android/b64/mod.rs
@@ -150,6 +150,13 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_mutex_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.value.hash(state);
+        self.__reserved.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_cond_t {
     fn eq(&self, other: &pthread_cond_t) -> bool {
         self.value == other.value
@@ -172,6 +179,13 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_cond_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.value.hash(state);
+        self.__reserved.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_rwlock_t {
     fn eq(&self, other: &pthread_rwlock_t) -> bool {
         self.numLocks == other.numLocks
@@ -201,6 +215,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_rwlock_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.numLocks.hash(state);
+        self.writerThreadId.hash(state);
+        self.pendingReaders.hash(state);
+        self.pendingWriters.hash(state);
+        self.attr.hash(state);
+        self.__reserved.hash(state);
+    }
+}
 
 pub const RTLD_GLOBAL: ::c_int = 0x00100;
 pub const RTLD_NOW: ::c_int = 2;
diff --git a/src/unix/notbsd/android/mod.rs b/src/unix/notbsd/android/mod.rs
index 99faaef..de4ff59 100644
--- a/src/unix/notbsd/android/mod.rs
+++ b/src/unix/notbsd/android/mod.rs
@@ -269,6 +269,16 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for dirent {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d_ino.hash(state);
+        self.d_off.hash(state);
+        self.d_reclen.hash(state);
+        self.d_type.hash(state);
+        self.d_name.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for dirent64 {
     fn eq(&self, other: &dirent64) -> bool {
         self.d_ino == other.d_ino
@@ -297,6 +307,16 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for dirent64 {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d_ino.hash(state);
+        self.d_off.hash(state);
+        self.d_reclen.hash(state);
+        self.d_type.hash(state);
+        self.d_name.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for siginfo_t {
     fn eq(&self, other: &siginfo_t) -> bool {
         self.si_signo == other.si_signo
@@ -321,6 +341,16 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for siginfo_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.si_signo.hash(state);
+        self.si_errno.hash(state);
+        self.si_code.hash(state);
+            // Ignore _pad
+            // Ignore _align
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for lastlog {
     fn eq(&self, other: &lastlog) -> bool {
         self.ll_time == other.ll_time
@@ -349,6 +379,14 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for lastlog {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ll_time.hash(state);
+        self.ll_line.hash(state);
+        self.ll_host.hash(state);
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for utmp {
     fn eq(&self, other: &utmp) -> bool {
         self.ut_type == other.ut_type
@@ -396,6 +434,22 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for utmp {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ut_type.hash(state);
+        self.ut_pid.hash(state);
+        self.ut_line.hash(state);
+        self.ut_id.hash(state);
+        self.ut_user.hash(state);
+        self.ut_host.hash(state);
+        self.ut_exit.hash(state);
+        self.ut_session.hash(state);
+        self.ut_tv.hash(state);
+        self.ut_addr_v6.hash(state);
+        self.unused.hash(state);
+    }
+}
 
 pub const O_TRUNC: ::c_int = 512;
 pub const O_CLOEXEC: ::c_int = 0x80000;
diff --git a/src/unix/notbsd/linux/mod.rs b/src/unix/notbsd/linux/mod.rs
index b0eac45..31fc379 100644
--- a/src/unix/notbsd/linux/mod.rs
+++ b/src/unix/notbsd/linux/mod.rs
@@ -687,6 +687,16 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for dirent {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d_ino.hash(state);
+        self.d_off.hash(state);
+        self.d_reclen.hash(state);
+        self.d_type.hash(state);
+        self.d_name.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for dirent64 {
@@ -716,6 +726,16 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for dirent64 {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d_ino.hash(state);
+        self.d_off.hash(state);
+        self.d_reclen.hash(state);
+        self.d_type.hash(state);
+        self.d_name.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_cond_t {
@@ -733,6 +753,12 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_cond_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.size.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_mutex_t {
@@ -750,6 +776,12 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_mutex_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.size.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for pthread_rwlock_t {
@@ -767,6 +799,12 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for pthread_rwlock_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.size.hash(state);
+    }
+}
 
 pub const ABDAY_1: ::nl_item = 0x20000;
 pub const ABDAY_2: ::nl_item = 0x20001;
diff --git a/src/unix/notbsd/linux/musl/b32/x86.rs b/src/unix/notbsd/linux/musl/b32/x86.rs
index 9b79356..42ff2a2 100644
--- a/src/unix/notbsd/linux/musl/b32/x86.rs
+++ b/src/unix/notbsd/linux/musl/b32/x86.rs
@@ -207,6 +207,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for ucontext_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.uc_flags.hash(state);
+        self.uc_link.hash(state);
+        self.uc_stack.hash(state);
+        self.uc_mcontext.hash(state);
+        self.uc_sigmask.hash(state);
+        self.__private.hash(state);
+    }
+}
 
 pub const SIGSTKSZ: ::size_t = 8192;
 pub const MINSIGSTKSZ: ::size_t = 2048;
diff --git a/src/unix/notbsd/linux/musl/b64/x86_64.rs b/src/unix/notbsd/linux/musl/b64/x86_64.rs
index 1679a3a..8462a4f 100644
--- a/src/unix/notbsd/linux/musl/b64/x86_64.rs
+++ b/src/unix/notbsd/linux/musl/b64/x86_64.rs
@@ -105,6 +105,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for ucontext_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.uc_flags.hash(state);
+        self.uc_link.hash(state);
+        self.uc_stack.hash(state);
+        self.uc_mcontext.hash(state);
+        self.uc_sigmask.hash(state);
+        self.__private.hash(state);
+    }
+}
 
 // Syscall table
 
diff --git a/src/unix/notbsd/linux/musl/mod.rs b/src/unix/notbsd/linux/musl/mod.rs
index 6d1a0a1..b3ab650 100644
--- a/src/unix/notbsd/linux/musl/mod.rs
+++ b/src/unix/notbsd/linux/musl/mod.rs
@@ -141,6 +141,25 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for sysinfo {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.uptime.hash(state);
+        self.loads.hash(state);
+        self.totalram.hash(state);
+        self.freeram.hash(state);
+        self.sharedram.hash(state);
+        self.bufferram.hash(state);
+        self.totalswap.hash(state);
+        self.freeswap.hash(state);
+        self.procs.hash(state);
+        self.pad.hash(state);
+        self.totalhigh.hash(state);
+        self.freehigh.hash(state);
+        self.mem_unit.hash(state);
+        self.__reserved.hash(state);
+    }
+}
 
 pub const SFD_CLOEXEC: ::c_int = 0x080000;
 
diff --git a/src/unix/notbsd/linux/other/b32/x86.rs b/src/unix/notbsd/linux/other/b32/x86.rs
index d3186c0..fb48982 100644
--- a/src/unix/notbsd/linux/other/b32/x86.rs
+++ b/src/unix/notbsd/linux/other/b32/x86.rs
@@ -256,6 +256,24 @@
     }
 }
 #[cfg(feature = "extra_traits")]
+impl std::hash::Hash for user_fpxregs_struct {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.cwd.hash(state);
+        self.swd.hash(state);
+        self.twd.hash(state);
+        self.fop.hash(state);
+        self.fip.hash(state);
+        self.fcs.hash(state);
+        self.foo.hash(state);
+        self.fos.hash(state);
+        self.mxcsr.hash(state);
+        // Ignore __reserved field
+        self.st_space.hash(state);
+        self.xmm_space.hash(state);
+        // Ignore padding field
+    }
+}
+#[cfg(feature = "extra_traits")]
 impl PartialEq for ucontext_t {
     fn eq(&self, other: &ucontext_t) -> bool {
         self.uc_flags == other.uc_flags
@@ -281,6 +299,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for ucontext_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.uc_flags.hash(state);
+        self.uc_link.hash(state);
+        self.uc_stack.hash(state);
+        self.uc_mcontext.hash(state);
+        self.uc_sigmask.hash(state);
+        // Ignore __private field
+    }
+}
 
 pub const O_DIRECT: ::c_int = 0x4000;
 pub const O_DIRECTORY: ::c_int = 0x10000;
diff --git a/src/unix/notbsd/linux/other/b64/x86_64.rs b/src/unix/notbsd/linux/other/b64/x86_64.rs
index 02745b9..b2a67ee 100644
--- a/src/unix/notbsd/linux/other/b64/x86_64.rs
+++ b/src/unix/notbsd/linux/other/b64/x86_64.rs
@@ -273,6 +273,21 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for user_fpregs_struct {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.cwd.hash(state);
+        self.ftw.hash(state);
+        self.fop.hash(state);
+        self.rip.hash(state);
+        self.rdp.hash(state);
+        self.mxcsr.hash(state);
+        self.mxcr_mask.hash(state);
+        self.st_space.hash(state);
+        self.xmm_space.hash(state);
+        // Ignore padding field
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for ucontext_t {
@@ -300,6 +315,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for ucontext_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.uc_flags.hash(state);
+        self.uc_link.hash(state);
+        self.uc_stack.hash(state);
+        self.uc_mcontext.hash(state);
+        self.uc_sigmask.hash(state);
+        // Ignore __private field
+    }
+}
 
 pub const TIOCGSOFTCAR: ::c_ulong = 0x5419;
 pub const TIOCSSOFTCAR: ::c_ulong = 0x541A;
diff --git a/src/unix/notbsd/linux/other/mod.rs b/src/unix/notbsd/linux/other/mod.rs
index fa0e39b..4036cea 100644
--- a/src/unix/notbsd/linux/other/mod.rs
+++ b/src/unix/notbsd/linux/other/mod.rs
@@ -286,6 +286,22 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for utmpx {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ut_type.hash(state);
+        self.ut_pid.hash(state);
+        self.ut_line.hash(state);
+        self.ut_id.hash(state);
+        self.ut_user.hash(state);
+        self.ut_host.hash(state);
+        self.ut_exit.hash(state);
+        self.ut_session.hash(state);
+        self.ut_tv.hash(state);
+        self.ut_addr_v6.hash(state);
+        self.__glibc_reserved.hash(state);
+    }
+}
 
 pub const __UT_LINESIZE: usize = 32;
 pub const __UT_NAMESIZE: usize = 32;
diff --git a/src/unix/notbsd/linux/s390x.rs b/src/unix/notbsd/linux/s390x.rs
index 8a6b88a..f53e47e 100644
--- a/src/unix/notbsd/linux/s390x.rs
+++ b/src/unix/notbsd/linux/s390x.rs
@@ -352,6 +352,12 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for fpreg_t {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.d.to_bits().hash(state);
+    }
+}
 
 pub const SFD_CLOEXEC: ::c_int = 0x080000;
 
diff --git a/src/unix/notbsd/mod.rs b/src/unix/notbsd/mod.rs
index cd613d4..4b06e6e 100644
--- a/src/unix/notbsd/mod.rs
+++ b/src/unix/notbsd/mod.rs
@@ -254,6 +254,13 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for sockaddr_un {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.sun_family.hash(state);
+        self.sun_path.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for sockaddr_storage {
@@ -278,6 +285,13 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for sockaddr_storage {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.ss_family.hash(state);
+        self.__ss_pad2.hash(state);
+    }
+}
 
 #[cfg(feature = "extra_traits")]
 impl PartialEq for utsname {
@@ -328,6 +342,17 @@
             .finish()
     }
 }
+#[cfg(feature = "extra_traits")]
+impl std::hash::Hash for utsname {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.sysname.hash(state);
+        self.nodename.hash(state);
+        self.release.hash(state);
+        self.version.hash(state);
+        self.machine.hash(state);
+        self.domainname.hash(state);
+    }
+}
 
 // intentionally not public, only used for fd_set
 cfg_if! {