master 7406ae4c98: Fix broken build on Solaris 10 emacs_spawn

[Paul Eggert]

branch: master
commit 7406ae4c98fdbf9ea53444defcc75ee75e7e2668
Author: Paul Eggert <eggert@cs.ucla.edu>
Commit: Paul Eggert <eggert@cs.ucla.edu>

    Fix broken build on Solaris 10 emacs_spawn
    
    * src/callproc.c (emacs_spawn) [SETUP_SLAVE_TTY]:
    pty_flag no longer exists.  Use pty_in && std_in >= 0,
    which at least compiles.
---
 src/callproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/callproc.c b/src/callproc.c
index e8e4c48b5b..2d457b3c84 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -1574,7 +1574,7 @@ emacs_spawn (pid_t *newpid, int std_in, int std_out, int 
std_err,
 #endif /* not DONT_REOPEN_PTY */
 
 #ifdef SETUP_SLAVE_PTY
-      if (pty_flag)
+      if (pty_in && std_in >= 0)
        {
          SETUP_SLAVE_PTY;
        }