1 files changed, 5 insertions, 2 deletions

diff --git a/pty.c b/pty.c
index 04004d20f..cdf1d1281 100644
--- a/pty.c
+++ b/pty.c
@@ -117,12 +117,15 @@ pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen)
                 return 0;
         }
 #ifndef HAVE_CYGWIN
-        /* Push the appropriate streams modules, as described in Solaris pts(7). */
+        /*
+         * Push the appropriate streams modules, as described in Solaris pts(7).
+         * HP-UX pts(7) doesn't have ttcompat module.
+         */
         if (ioctl(*ttyfd, I_PUSH, "ptem") < 0)
                 error("ioctl I_PUSH ptem: %.100s", strerror(errno));
         if (ioctl(*ttyfd, I_PUSH, "ldterm") < 0)
                 error("ioctl I_PUSH ldterm: %.100s", strerror(errno));
-#ifndef _HPUX_SOURCE
+#ifndef __hpux
         if (ioctl(*ttyfd, I_PUSH, "ttcompat") < 0)
                 error("ioctl I_PUSH ttcompat: %.100s", strerror(errno));
 #endif