Get the library to build on freebsd

`cargo build` works.

5 files changed, 56 insertions, 5 deletions

diff --git a/src/sys/mman.rs b/src/sys/mman.rs
index a905744d..d3f3b7ae 100644
--- a/src/sys/mman.rs
+++ b/src/sys/mman.rs
@@ -112,6 +112,55 @@ mod consts {
     pub const MAP_FAILED: isize               = -1;
 }
 
+#[cfg(target_os = "freebsd")]
+mod consts {
+    use libc::c_int;
+
+    pub type MmapFlag = c_int;
+
+    pub const MAP_SHARED: MmapFlag          = 0x00001;
+    pub const MAP_PRIVATE: MmapFlag         = 0x00002;
+    pub const MAP_FIXED: MmapFlag           = 0x00010;
+
+    pub const MAP_RENAME: MmapFlag          = 0x00020;
+    pub const MAP_NORESERVE: MmapFlag       = 0x00040;
+    pub const MAP_HASSEMAPHORE: MmapFlag    = 0x00200;
+    pub const MAP_STACK: MmapFlag           = 0x00400;
+    pub const MAP_NOSYNC: MmapFlag          = 0x00800;
+    pub const MAP_FILE: MmapFlag            = 0x00000;
+    pub const MAP_ANON: MmapFlag            = 0x01000;
+
+    pub type MmapProt = c_int;
+
+    pub const PROT_READ: MmapProt           = 0x1;
+    pub const PROT_WRITE: MmapProt          = 0x2;
+    pub const PROT_EXEC: MmapProt           = 0x4;
+    pub const PROT_NONE: MmapProt           = 0x0;
+
+    pub type MmapAdvise = c_int;
+
+    pub const MADV_NORMAL     : MmapAdvise      = 0; /* No further special treatment.  */
+    pub const MADV_RANDOM     : MmapAdvise      = 1; /* Expect random page references.  */
+    pub const MADV_SEQUENTIAL : MmapAdvise      = 2; /* Expect sequential page references.  */
+    pub const MADV_WILLNEED   : MmapAdvise      = 3; /* Will need these pages.  */
+    pub const MADV_DONTNEED   : MmapAdvise      = 4; /* Don't need these pages.  */
+    pub const MADV_FREE       : MmapAdvise      = 5; /* pages unneeded, discard contents */
+    pub const MADV_NOSYNC     : MmapAdvise      = 6; /* try to avoid flushes to physical media*/
+    pub const MADV_AUTOSYNC   : MmapAdvise      = 7; /* refert to default flushing strategy */
+    pub const MADV_NOCORE     : MmapAdvise      = 8; /* do not include these pages in a core file */
+    pub const MADV_CORE       : MmapAdvise      = 9; /* revert to including pages in a core file */
+    pub const MADV_PROTECT    : MmapAdvise      = 10; /* protect process from pageout kill */
+
+    pub type MmapSync = c_int;
+
+    pub const MS_ASYNC      : MmapSync          = 0x0001; /* [MF|SIO] return immediately */
+    pub const MS_INVALIDATE : MmapSync          = 0x0002; /* [MF|SIO] invalidate all cached data */
+    pub const MS_SYNC       : MmapSync          = 0x0010; /* [MF|SIO] msync synchronously */
+    pub const MS_KILLPAGES  : MmapSync          = 0x0004; /* invalidate pages, leave mapped */
+    pub const MS_DEACTIVATE : MmapSync          = 0x0008; /* deactivate pages, leave mapped */
+
+    pub const MAP_FAILED: isize                 = -1;
+}
 mod ffi {
     use libc::{c_void, size_t, c_int, c_char, mode_t};
 
diff --git a/src/sys/mod.rs b/src/sys/mod.rs
index f25aecb4..f0fda20a 100644
--- a/src/sys/mod.rs
+++ b/src/sys/mod.rs
@@ -2,14 +2,14 @@
 #[cfg(any(target_os = "linux", target_os = "android"))]
 pub mod epoll;
 
-#[cfg(any(target_os = "macos", target_os = "ios"))]
+#[cfg(any(target_os = "macos", target_os = "ios", target_os = "freebsd"))]
 pub mod event;
 
 // TODO: switch from feature flags to conditional builds
 #[cfg(feature = "eventfd")]
 pub mod eventfd;
 
-#[cfg(not(target_os = "ios"))]
+#[cfg(not(any(target_os = "ios", target_os = "freebsd")))]
 pub mod ioctl;
 
 pub mod signal;
diff --git a/src/sys/signal.rs b/src/sys/signal.rs
index 112a7bcd..8f3ecdcf 100644
--- a/src/sys/signal.rs
+++ b/src/sys/signal.rs
@@ -242,6 +242,7 @@ pub mod signal {
     pub type sigset_t = u32;
     #[cfg(any(target_os = "freebsd", target_os = "dragonfly"))]
     #[repr(C)]
+    #[derive(Clone, Copy)]
     pub struct sigset_t {
         bits: [u32; 4],
     }
diff --git a/src/sys/socket/consts.rs b/src/sys/socket/consts.rs
index 539c50e9..a2bb535b 100644
--- a/src/sys/socket/consts.rs
+++ b/src/sys/socket/consts.rs
@@ -90,7 +90,8 @@ mod os {
     pub const MSG_DONTWAIT: SockMessageFlags = 0x40;
 }
 
-#[cfg(any(target_os = "macos", target_os = "ios"))]
+// Not all of these constants exist on freebsd
+#[cfg(any(target_os = "macos", target_os = "freebsd", target_os = "ios"))]
 mod os {
     use libc::{c_int, uint8_t};
 
diff --git a/src/sys/termios.rs b/src/sys/termios.rs
index 57612f0b..0c636e77 100644
--- a/src/sys/termios.rs
+++ b/src/sys/termios.rs
@@ -17,7 +17,7 @@ mod ffi {
     // `Termios` contains bitflags which are not considered
     // `foreign-function-safe` by the compiler.
     #[allow(improper_ctypes)]
-    #[cfg(any(target_os = "macos", target_os = "linux"))]
+    #[cfg(any(target_os = "macos", target_os = "freebsd", target_os = "linux"))]
     extern {
         pub fn cfgetispeed(termios: *const Termios) -> speed_t;
         pub fn cfgetospeed(termios: *const Termios) -> speed_t;
@@ -89,7 +89,7 @@ mod ffi {
     pub use self::android::*;
 
 
-    #[cfg(target_os = "macos")]
+    #[cfg(any(target_os = "macos", target_os = "freebsd"))]
     pub mod consts {
         use libc::{c_int, c_ulong, c_uchar};