Auto merge of #2004 - dylni:define-cld-constants-for-more-targets, r=JohnTitor

Define CLD_ constants for more targets

This is an extension of #1860 to support more targets. The values for these constants should be correct, but I'm not familiar with most of the targets, so they should be verified.

These files should define the constants too, but the targets are closed source, so I don't know their values:
- [src/unix/solarish/mod.rs](https://github.com/rust-lang/libc/blob/master/src/unix/solarish/mod.rs)
- [src/vxworks/mod.rs](https://github.com/rust-lang/libc/blob/master/src/vxworks/mod.rs)

Author: bors

src/fuchsia/mod.rs

@@ -1986,6 +1986,13 @@ pub const PIPE_BUF: usize = 4096;
 
 pub const SI_LOAD_SHIFT: ::c_uint = 16;
 
+pub const CLD_EXITED: ::c_int = 1;
+pub const CLD_KILLED: ::c_int = 2;
+pub const CLD_DUMPED: ::c_int = 3;
+pub const CLD_TRAPPED: ::c_int = 4;
+pub const CLD_STOPPED: ::c_int = 5;
+pub const CLD_CONTINUED: ::c_int = 6;
+
 pub const SIGEV_SIGNAL: ::c_int = 0;
 pub const SIGEV_NONE: ::c_int = 1;
 pub const SIGEV_THREAD: ::c_int = 2;

src/unix/bsd/mod.rs

@@ -439,6 +439,13 @@ pub const TCP_MAXSEG: ::c_int = 2;
 
 pub const PIPE_BUF: usize = 512;
 
+pub const CLD_EXITED: ::c_int = 1;
+pub const CLD_KILLED: ::c_int = 2;
+pub const CLD_DUMPED: ::c_int = 3;
+pub const CLD_TRAPPED: ::c_int = 4;
+pub const CLD_STOPPED: ::c_int = 5;
+pub const CLD_CONTINUED: ::c_int = 6;
+
 pub const POLLIN: ::c_short = 0x1;
 pub const POLLPRI: ::c_short = 0x2;
 pub const POLLOUT: ::c_short = 0x4;

src/unix/haiku/mod.rs

@@ -1059,6 +1059,13 @@ pub const WEXITED: ::c_int = 0x08;
 pub const WSTOPPED: ::c_int = 0x10;
 pub const WNOWAIT: ::c_int = 0x20;
 
+pub const CLD_EXITED: ::c_int = 60;
+pub const CLD_KILLED: ::c_int = 61;
+pub const CLD_DUMPED: ::c_int = 62;
+pub const CLD_TRAPPED: ::c_int = 63;
+pub const CLD_STOPPED: ::c_int = 64;
+pub const CLD_CONTINUED: ::c_int = 65;
+
 pub const P_ALL: idtype_t = 0;
 pub const P_PID: idtype_t = 1;
 pub const P_PGID: idtype_t = 2;

src/unix/uclibc/mod.rs

@@ -1125,6 +1125,13 @@ pub const PIPE_BUF: usize = 4096;
 
 pub const SI_LOAD_SHIFT: ::c_uint = 16;
 
+pub const CLD_EXITED: ::c_int = 1;
+pub const CLD_KILLED: ::c_int = 2;
+pub const CLD_DUMPED: ::c_int = 3;
+pub const CLD_TRAPPED: ::c_int = 4;
+pub const CLD_STOPPED: ::c_int = 5;
+pub const CLD_CONTINUED: ::c_int = 6;
+
 pub const SIGEV_SIGNAL: ::c_int = 0;
 pub const SIGEV_NONE: ::c_int = 1;
 pub const SIGEV_THREAD: ::c_int = 2;