Hi. I'm encountering the following compilation error when I empty the
line with "#define USE_PIPES 1":

session.c: In function ‘do_exec_no_pty’:
session.c:523: warning: passing argument 1 of ‘session_set_fds’ from
incompatible pointer type
session.c:116: note: expected ‘struct ssh *’ but argument is of type
‘struct Session *’
session.c:523: warning: passing argument 2 of ‘session_set_fds’ makes
pointer from integer without a cast
session.c:116: note: expected ‘struct Session *’ but argument is of type ‘int’
session.c:523: error: too few arguments to function ‘session_set_fds’

The following patch fixes it:

$ diff -ur openssh-7.7p1-orig openssh-7.7p1-fixed
diff -ur openssh-7.7p1-orig/session.c openssh-7.7p1-fixed/session.c
--- openssh-7.7p1-orig/session.c        2018-04-02 05:38:28.000000000 +0000
+++ openssh-7.7p1-fixed/session.c       2018-06-15 13:55:26.000000000 +0000
@@ -519,7 +519,7 @@
         * Enter the interactive session.  Note: server_loop must be able to
         * handle the case that fdin and fdout are the same.
         */
-       session_set_fds(s, inout[1], inout[1], err[1],
+       session_set_fds(ssh, s, inout[1], inout[1], err[1],
            s->is_subsystem, 0);
 #endif
        return 0;

I don't get the compilation error when I don't remove "#define USE_PIPES 1".

Regards,
-- 
Fita Adrian