In-House Patch. Submitted to upstream, but not accepted yet.

Check for flock(), which is available on BSD and not on Solaris. 

Instead use fnctl() on Solaris. Also check if cfmakeraw(), which

is not available on Solaris, so manually change the termios 

structure, the same way cfmakeraw does.

--- tmux-1.8/client.c.orig	2013-08-13 12:42:26.447337127 -0700

+++ tmux-1.8/client.c	2013-08-13 12:44:09.044164126 -0700

@@ -74,16 +74,30 @@

 client_get_lock(char *lockfile)

 {

 	int lockfd;

+#ifdef F_SETLK

+        struct flock lock;

+#endif

 	if ((lockfd = open(lockfile, O_WRONLY|O_CREAT, 0600)) == -1)

 		fatal("open failed");

+#ifdef F_SETLK

+        if (fcntl(lockfd, F_SETLK, &lock) == -1 && errno == EAGAIN) {

+		while (fcntl(lockfd, F_SETLKW, &lock) == -1 && errno == EINTR)

+			/* nothing */;

+		close(lockfd);

+		return(-1);

+	}

+#elif LOCK_EX

 	if (flock(lockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) {

 		while (flock(lockfd, LOCK_EX) == -1 && errno == EINTR)

 			/* nothing */;

 		close(lockfd);

 		return (-1);

 	}

+#else

+#error  "You need locking support."

+#endif

 	return (lockfd);

 }

@@ -244,7 +258,15 @@

 			    strerror(errno));

 			return (1);

 		}

-		cfmakeraw(&tio);

+#ifdef HAVE_CFMAKERAW

+                cfmakeraw(&tio);

+#else

+		tio.c_iflag &= ~(IMAXBEL|IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);

+		tio.c_oflag &= ~OPOST;

+		tio.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);

+		tio.c_cflag &= ~(CSIZE|PARENB);

+	     	tio.c_cflag |= CS8;

+#endif

 		tio.c_iflag = ICRNL|IXANY;

 		tio.c_oflag = OPOST|ONLCR;

 #ifdef NOKERNINFO