adding new illumos ptsname_r call.

while at it, fixing PTHREAD_MUTEX_DEFAULT which differs from solaris.

libc-test/semver/illumos.txt

@@ -1,3 +1,4 @@
 pthread_attr_get_np
 pthread_attr_getstackaddr
 pthread_attr_setstack
+ptsname_r

src/unix/solarish/illumos.rs

@@ -68,6 +68,8 @@ pub const B4000000: ::speed_t = 31;
 // sys/systeminfo.h
 pub const SI_ADDRESS_WIDTH: ::c_int = 520;
 
+pub const PTHREAD_MUTEX_DEFAULT: ::c_int = 8;
+
 extern "C" {
     pub fn eventfd(init: ::c_uint, flags: ::c_int) -> ::c_int;
 
@@ -100,4 +102,6 @@ extern "C" {
     pub fn pwritev(fd: ::c_int, iov: *const ::iovec, iovcnt: ::c_int, offset: ::off_t)
         -> ::ssize_t;
     pub fn getpagesizes2(pagesize: *mut ::size_t, nelem: ::c_int) -> ::c_int;
+
+    pub fn ptsname_r(fildes: ::c_int, name: *mut ::c_char, namelen: ::size_t) -> ::c_int;
 }

src/unix/solarish/mod.rs

@@ -2154,7 +2154,6 @@ pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t {
 pub const PTHREAD_MUTEX_NORMAL: ::c_int = 0;
 pub const PTHREAD_MUTEX_ERRORCHECK: ::c_int = 2;
 pub const PTHREAD_MUTEX_RECURSIVE: ::c_int = 4;
-pub const PTHREAD_MUTEX_DEFAULT: ::c_int = PTHREAD_MUTEX_NORMAL;
 
 pub const RTLD_NEXT: *mut ::c_void = -1isize as *mut ::c_void;
 pub const RTLD_DEFAULT: *mut ::c_void = -2isize as *mut ::c_void;

src/unix/solarish/solaris.rs

@@ -65,6 +65,8 @@ pub const F_DUPFD_CLOFORK: ::c_int = 49;
 pub const F_DUP2FD_CLOEXEC: ::c_int = 48;
 pub const F_DUP2FD_CLOFORK: ::c_int = 50;
 
+pub const PTHREAD_MUTEX_DEFAULT: ::c_int = ::PTHREAD_MUTEX_NORMAL;
+
 extern "C" {
     pub fn fexecve(fd: ::c_int, argv: *const *mut ::c_char, envp: *const *mut ::c_char) -> ::c_int;