From 7ae6605846ecc70c937fca31b2133082aae055df Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Tue, 19 Aug 2014 14:22:22 +0200
Subject: Use Gnulib forkpty()

---
 m4/posix_openpt.m4 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 m4/posix_openpt.m4

(limited to 'm4/posix_openpt.m4')

diff --git a/m4/posix_openpt.m4 b/m4/posix_openpt.m4
new file mode 100644
index 00000000..252a074d
--- /dev/null
+++ b/m4/posix_openpt.m4
@@ -0,0 +1,19 @@
+# posix_openpt.m4 serial 2
+dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_POSIX_OPENPT],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+
+  dnl Persuade Solaris <stdlib.h> to declare posix_openpt().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_CHECK_FUNCS_ONCE([posix_openpt])
+  if test $ac_cv_func_posix_openpt != yes; then
+    dnl The system does not have posix_openpt.
+    HAVE_POSIX_OPENPT=0
+  fi
+])
-- 
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