pty: Activate the signature wrapper of forkpty.

The intended preprocessor macro HAVE_FORKPTY is
never defined, yet `lib/forkpty.c' depends on it.

* m4/pty.m4 (gl_FUNC_FORKPTY): At completed analysis,
apply AC_DEFINE_UNQUOTED to HAVE_FORKPTY with value
$HAVE_FORKPTY for access to wrapper in `lib/forkpty.c'.

diff --git a/ChangeLog b/ChangeLog
index 16443b3..612f99a 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2013-11-25  Mats Erik Andersson  <gnu@gisladisker.se>
+
+       pty: Activate the signature wrapper of forkpty.
+       The intended preprocessor macro HAVE_FORKPTY is
+       never defined, yet `lib/forkpty.c' depends on it.
+
+       * m4/pty.m4 (gl_FUNC_FORKPTY): At completed analysis,
+       apply AC_DEFINE_UNQUOTED to HAVE_FORKPTY with value
+       $HAVE_FORKPTY for access to wrapper in `lib/forkpty.c'.
+
 2013-11-18  Jim Meyering  <meyering@fb.com>
        and Paul Eggert  <eggert@cs.ucla.edu>
 

diff --git a/m4/pty.m4 b/m4/pty.m4
index f889831..7184d23 100644 (file)
--- a/m4/pty.m4
+++ b/m4/pty.m4
@@ -1,4 +1,4 @@
-# pty.m4 serial 12
+# pty.m4 serial 13
 dnl Copyright (C) 2010-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -72,6 +72,8 @@ AC_DEFUN([gl_FUNC_FORKPTY],
     dnl The system does not have forkpty.
     HAVE_FORKPTY=0
   fi
+  AC_DEFINE_UNQUOTED([HAVE_FORKPTY], [$HAVE_FORKPTY],
+    [Define to 1 if the system has the 'forkpty' function.])
 ])
 
 AC_DEFUN([gl_FUNC_OPENPTY],