Use safe_f! consistently across platforms

The pr #1870 introduced safe_f! macro, which made some functions like
WIFEXITED and WEXITSTATUS const and safe on linux_like platform only,
which causes inconsistency when trying to use those functions in crates
compiled across multiple platforms, as using unsafe on those functions
will generate unused_unsafe warning on linux platforms and lack of
unsafe block will fail compilation on non-linux platforms.

To avoid the inconsistency, this commit applies the same macro for all
the same functions on other platforms too.

14 files changed, 211 insertions, 183 deletions

diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index b3ff29f1e5..cd42f9a243 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -3158,42 +3158,6 @@ f! {
         }
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
-        (status & 0xff) == 0x7f
-    }
-
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
-        status == 0xffff
-    }
-
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
-        ((status & 0x7f) + 1) as i8 >= 2
-    }
-
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
-        status & 0x7f
-    }
-
-    pub fn WIFEXITED(status: ::c_int) -> bool {
-        (status & 0x7f) == 0
-    }
-
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
-        (status & 0x80) != 0
-    }
-
-    pub fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
-        (cmd << 8) | (type_ & 0x00ff)
-    }
-
     pub fn CPU_ZERO(cpuset: &mut cpu_set_t) -> () {
         for slot in cpuset.bits.iter_mut() {
             *slot = 0;
@@ -3291,6 +3255,44 @@ f! {
     }
 }
 
+safe_f! {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
+        (status & 0xff) == 0x7f
+    }
+
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
+        status == 0xffff
+    }
+
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        ((status & 0x7f) + 1) as i8 >= 2
+    }
+
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
+        status & 0x7f
+    }
+
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
+        (status & 0x7f) == 0
+    }
+
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
+        (status & 0x80) != 0
+    }
+
+    pub {const} fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
+        (cmd << 8) | (type_ & 0x00ff)
+    }
+}
+
 fn __CMSG_LEN(cmsg: *const cmsghdr) -> ::ssize_t {
     ((unsafe { (*cmsg).cmsg_len as ::size_t } + ::mem::size_of::<::c_long>()
         - 1)
@@ -3302,9 +3304,8 @@ fn __CMSG_NEXT(cmsg: *const cmsghdr) -> *mut c_uchar {
 }
 
 fn __MHDR_END(mhdr: *const msghdr) -> *mut c_uchar {
-    unsafe {
-        (*mhdr).msg_control.offset((*mhdr).msg_controllen as isize)
-    }.cast()
+    unsafe { (*mhdr).msg_control.offset((*mhdr).msg_controllen as isize) }
+        .cast()
 }
 
 // EXTERN_FN
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index b6984ecd4c..1d53dee442 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -3241,24 +3241,26 @@ f! {
         (__DARWIN_ALIGN32(::mem::size_of::<::cmsghdr>()) + length as usize)
             as ::c_uint
     }
+}
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
+safe_f! {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
         status >> 8
     }
 
-    pub fn _WSTATUS(status: ::c_int) -> ::c_int {
+    pub {const} fn _WSTATUS(status: ::c_int) -> ::c_int {
         status & 0x7f
     }
 
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         _WSTATUS(status) == _WSTOPPED && WSTOPSIG(status) == 0x13
     }
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
         _WSTATUS(status) != _WSTOPPED && _WSTATUS(status) != 0
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
         _WSTATUS(status) == _WSTOPPED && WSTOPSIG(status) != 0x13
     }
 }
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index 47e3b7c152..0548a3bf4a 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -1037,8 +1037,10 @@ f! {
         (_CMSG_ALIGN(::mem::size_of::<::cmsghdr>()) +
             _CMSG_ALIGN(length as usize)) as ::c_uint
     }
+}
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
+safe_f! {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
         (status & 0o177) != 0o177 && (status & 0o177) != 0
     }
 }
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 6359196138..6f3087836c 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -1195,15 +1195,17 @@ f! {
         ::mem::size_of::<sockcred>() + ::mem::size_of::<::gid_t>() * ngrps
     }
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
-        (status & 0o177) != 0o177 && (status & 0o177) != 0 && status != 0x13
-    }
-
     pub fn uname(buf: *mut ::utsname) -> ::c_int {
         __xuname(256, buf as *mut ::c_void)
     }
 }
 
+safe_f! {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        (status & 0o177) != 0o177 && (status & 0o177) != 0 && status != 0x13
+    }
+}
+
 extern "C" {
     pub fn __error() -> *mut ::c_int;
 
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index f70b8a5e6e..7bf9399d97 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -1220,16 +1220,16 @@ pub const TIME_ERROR: ::c_int = 5;
 pub const REG_ENOSYS: ::c_int = -1;
 pub const REG_ILLSEQ: ::c_int = 17;
 
-f! {
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
+safe_f! {
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         status == 0x13
     }
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
         status >> 8
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
         (status & 0o177) == 0o177
     }
 }
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index e49703e0da..b9a0a14ef8 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -544,24 +544,26 @@ f! {
             *slot = 0;
         }
     }
+}
 
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
+safe_f! {
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
         status & 0o177
     }
 
-    pub fn WIFEXITED(status: ::c_int) -> bool {
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
         (status & 0o177) == 0
     }
 
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
         status >> 8
     }
 
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
         (status & 0o200) != 0
     }
 
-    pub fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
+    pub {const} fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
         (cmd << 8) | (type_ & 0x00ff)
     }
 }
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 6ddb3257e2..dfa5764ed3 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -1699,18 +1699,6 @@ f! {
             as ::c_uint
     }
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
-        status >> 8
-    }
-
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
-        (status & 0o177) != 0o177 && (status & 0o177) != 0
-    }
-
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
-        (status & 0o177) == 0o177
-    }
-
     // dirfd() is a macro on netbsd to access
     // the first field of the struct where dirp points to:
     // http://cvsweb.netbsd.org/bsdweb.cgi/src/include/dirent.h?rev=1.36
@@ -1718,10 +1706,6 @@ f! {
         *(dirp as *const ::c_int)
     }
 
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
-        status == 0xffff
-    }
-
     pub fn SOCKCREDSIZE(ngrps: usize) -> usize {
         let ngrps = if ngrps > 0 {
             ngrps - 1
@@ -1732,6 +1716,24 @@ f! {
     }
 }
 
+safe_f! {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
+        status >> 8
+    }
+
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        (status & 0o177) != 0o177 && (status & 0o177) != 0
+    }
+
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
+        (status & 0o177) == 0o177
+    }
+
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
+        status == 0xffff
+    }
+}
+
 extern "C" {
     pub fn ntp_adjtime(buf: *mut timex) -> ::c_int;
     pub fn ntp_gettime(buf: *mut ntptimeval) -> ::c_int;
diff --git a/src/unix/bsd/netbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsd/mod.rs
index 02a1b05996..4fe134eec4 100644
--- a/src/unix/bsd/netbsdlike/openbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsd/mod.rs
@@ -1340,7 +1340,7 @@ fn _ALIGN(p: usize) -> usize {
 }
 
 f! {
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         status & 0o177777 == 0o177777
     }
 
@@ -1375,16 +1375,18 @@ f! {
         (_ALIGN(::mem::size_of::<::cmsghdr>()) + _ALIGN(length as usize))
             as ::c_uint
     }
+}
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
+safe_f! {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
         status >> 8
     }
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
         (status & 0o177) != 0o177 && (status & 0o177) != 0
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
         (status & 0xff) == 0o177
     }
 }
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index ccd11380e7..6a0559b796 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -1254,37 +1254,39 @@ f! {
             *slot = 0;
         }
     }
+}
 
-    pub fn WIFEXITED(status: ::c_int) -> bool {
+safe_f! {
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
         (status & !0xff) == 0
     }
 
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
         status & 0xff
     }
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
         ((status >> 8) & 0xff) != 0
     }
 
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
         (status >> 8) & 0xff
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
         ((status >> 16) & 0xff) != 0
     }
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
         (status >> 16) & 0xff
     }
 
     // actually WIFCORED, but this is used everywhere else
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
         (status & 0x10000) != 0
     }
 
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         (status & 0x20000) != 0
     }
 }
@@ -1293,7 +1295,11 @@ extern "C" {
     pub fn getrlimit(resource: ::c_int, rlim: *mut ::rlimit) -> ::c_int;
     pub fn setrlimit(resource: ::c_int, rlim: *const ::rlimit) -> ::c_int;
     pub fn getpriority(which: ::c_int, who: id_t) -> ::c_int;
-    pub fn setpriority(which: ::c_int, who: id_t, priority: ::c_int) -> ::c_int;
+    pub fn setpriority(
+        which: ::c_int,
+        who: id_t,
+        priority: ::c_int,
+    ) -> ::c_int;
 
     pub fn utimensat(
         fd: ::c_int,
diff --git a/src/unix/hermit/mod.rs b/src/unix/hermit/mod.rs
index ae3fa22ac5..ad0fd14dcc 100644
--- a/src/unix/hermit/mod.rs
+++ b/src/unix/hermit/mod.rs
@@ -943,16 +943,16 @@ pub const PRIO_PROCESS: ::c_int = 0;
 pub const PRIO_PGRP: ::c_int = 1;
 pub const PRIO_USER: ::c_int = 2;
 
-f! {
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+safe_f! {
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
         (status >> 8) & 0xff
     }
 
-    pub fn WIFEXITED(status: ::c_int) -> bool {
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
         (status & 0xff) == 0
     }
 
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
         status & 0x7f
     }
 }
diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
index 55f64ee54f..6025be31b2 100644
--- a/src/unix/redox/mod.rs
+++ b/src/unix/redox/mod.rs
@@ -829,38 +829,6 @@ pub const PRIO_USER: ::c_int = 2;
 
 // wait.h
 f! {
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
-        (status & 0xff) == 0x7f
-    }
-
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
-        status == 0xffff
-    }
-
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
-        ((status & 0x7f) + 1) as i8 >= 2
-    }
-
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
-        status & 0x7f
-    }
-
-    pub fn WIFEXITED(status: ::c_int) -> bool {
-        (status & 0x7f) == 0
-    }
-
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
-        (status & 0x80) != 0
-    }
-
     pub fn FD_CLR(fd: ::c_int, set: *mut fd_set) -> () {
         let fd = fd as usize;
         let size = ::mem::size_of_val(&(*set).fds_bits[0]) * 8;
@@ -888,6 +856,40 @@ f! {
     }
 }
 
+safe_f! {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
+        (status & 0xff) == 0x7f
+    }
+
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
+        status == 0xffff
+    }
+
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        ((status & 0x7f) + 1) as i8 >= 2
+    }
+
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
+        status & 0x7f
+    }
+
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
+        (status & 0x7f) == 0
+    }
+
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
+        (status & 0x80) != 0
+    }
+}
+
 extern "C" {
     // errno.h
     pub fn __errno_location() -> *mut ::c_int;
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index 9b1daeb659..ad386a3c32 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -2130,36 +2130,38 @@ f! {
             *slot = 0;
         }
     }
+}
 
-    pub fn WIFEXITED(status: ::c_int) -> bool {
+safe_f! {
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
         (status & 0xFF) == 0
     }
 
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
         (status >> 8) & 0xFF
     }
 
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
         status & 0x7F
     }
 
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         (status & 0xffff) == 0xffff
     }
 
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
         (status & 0xff00) >> 8
     }
 
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
         ((status & 0xff) > 0) && (status & 0xff00 == 0)
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
         ((status & 0xff) == 0x7f) && ((status & 0xff00) != 0)
     }
 
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
         (status & 0x80) != 0
     }
 }
@@ -2415,7 +2417,7 @@ extern "C" {
         fd: ::c_int,
         address: *mut sockaddr,
         address_len: *mut socklen_t,
-        flags: ::c_int
+        flags: ::c_int,
     ) -> ::c_int;
 
     pub fn mq_open(name: *const ::c_char, oflag: ::c_int, ...) -> ::mqd_t;
@@ -2659,7 +2661,8 @@ extern "C" {
     pub fn ucred_getpid(ucred: *const ucred_t) -> ::pid_t;
     pub fn ucred_getprojid(ucred: *const ucred_t) -> projid_t;
     pub fn ucred_getzoneid(ucred: *const ucred_t) -> zoneid_t;
-    pub fn ucred_getpflags(ucred: *const ucred_t, flags: ::c_uint) -> ::c_uint;
+    pub fn ucred_getpflags(ucred: *const ucred_t, flags: ::c_uint)
+        -> ::c_uint;
 
     pub fn ucred_size() -> ::size_t;
 }
diff --git a/src/unix/uclibc/mod.rs b/src/unix/uclibc/mod.rs
index de09587983..bcc6ebf236 100644
--- a/src/unix/uclibc/mod.rs
+++ b/src/unix/uclibc/mod.rs
@@ -1535,38 +1535,6 @@ f! {
         }
     }
 
-    pub fn WIFSTOPPED(status: ::c_int) -> bool {
-        (status & 0xff) == 0x7f
-    }
-
-    pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WIFCONTINUED(status: ::c_int) -> bool {
-        status == 0xffff
-    }
-
-    pub fn WIFSIGNALED(status: ::c_int) -> bool {
-        ((status & 0x7f) + 1) as i8 >= 2
-    }
-
-    pub fn WTERMSIG(status: ::c_int) -> ::c_int {
-        status & 0x7f
-    }
-
-    pub fn WIFEXITED(status: ::c_int) -> bool {
-        (status & 0x7f) == 0
-    }
-
-    pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
-        (status >> 8) & 0xff
-    }
-
-    pub fn WCOREDUMP(status: ::c_int) -> bool {
-        (status & 0x80) != 0
-    }
-
     pub fn CPU_ZERO(cpuset: &mut cpu_set_t) -> () {
         for slot in cpuset.bits.iter_mut() {
             *slot = 0;
@@ -1598,8 +1566,42 @@ f! {
     pub fn CPU_EQUAL(set1: &cpu_set_t, set2: &cpu_set_t) -> bool {
         set1.bits == set2.bits
     }
+}
+
+safe_f! {
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
+        (status & 0xff) == 0x7f
+    }
+
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
+        status == 0xffff
+    }
+
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        ((status & 0x7f) + 1) as i8 >= 2
+    }
+
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
+        status & 0x7f
+    }
+
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
+        (status & 0x7f) == 0
+    }
+
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xff
+    }
+
+    pub {const} fn WCOREDUMP(status: ::c_int) -> bool {
+        (status & 0x80) != 0
+    }
 
-    pub fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
+    pub {const} fn QCMD(cmd: ::c_int, type_: ::c_int) -> ::c_int {
         (cmd << 8) | (type_ & 0x00ff)
     }
 }
diff --git a/src/vxworks/mod.rs b/src/vxworks/mod.rs
index 2a3ac7ff78..65362e9b58 100755
--- a/src/vxworks/mod.rs
+++ b/src/vxworks/mod.rs
@@ -2042,23 +2042,25 @@ extern "C" {
 //Dummy functions, these don't really exist in VxWorks.
 
 // wait.h macros
-pub fn WIFEXITED(status: ::c_int) -> bool {
-    (status & 0xFF00) == 0
-}
-pub fn WIFSIGNALED(status: ::c_int) -> bool {
-    (status & 0xFF00) != 0
-}
-pub fn WIFSTOPPED(status: ::c_int) -> bool {
-    (status & 0xFF0000) != 0
-}
-pub fn WEXITSTATUS(status: ::c_int) -> ::c_int {
-    status & 0xFF
-}
-pub fn WTERMSIG(status: ::c_int) -> ::c_int {
-    (status >> 8) & 0xFF
-}
-pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
-    (status >> 16) & 0xFF
+safe_f! {
+    pub {const} fn WIFEXITED(status: ::c_int) -> bool {
+        (status & 0xFF00) == 0
+    }
+    pub {const} fn WIFSIGNALED(status: ::c_int) -> bool {
+        (status & 0xFF00) != 0
+    }
+    pub {const} fn WIFSTOPPED(status: ::c_int) -> bool {
+        (status & 0xFF0000) != 0
+    }
+    pub {const} fn WEXITSTATUS(status: ::c_int) -> ::c_int {
+        status & 0xFF
+    }
+    pub {const} fn WTERMSIG(status: ::c_int) -> ::c_int {
+        (status >> 8) & 0xFF
+    }
+    pub {const} fn WSTOPSIG(status: ::c_int) -> ::c_int {
+        (status >> 16) & 0xFF
+    }
 }
 
 pub fn pread(