From 950fe8f2b1249369ab0b419b0063e6683bc8080e Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Tue, 30 Nov 2010 23:46:52 -0500
Subject: Check for platform support for ioctl(TIOCGWINSZ).

---
 configure.ac | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 81c299c..336c996 100644
--- a/configure.ac
+++ b/configure.ac
@@ -125,6 +125,24 @@ AC_COMPILE_IFELSE([
    AC_MSG_RESULT([no])]
 )
 
+AC_MSG_CHECKING([for ioctl(TIOCGWINSZ)])
+AC_COMPILE_IFELSE([
+  AC_LANG_PROGRAM(
+    [
+      #include <sys/ioctl.h>
+      #include <unistd.h>
+    ],
+    [
+      struct winsize ws;
+      ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
+    ]
+  )],
+  [AC_DEFINE([DMNSN_TIOCGWINSZ], [1])
+   AC_MSG_RESULT([yes])],
+  [AC_DEFINE([DMNSN_TIOCGWINSZ], [0])
+   AC_MSG_RESULT([no])]
+)
+
 AC_CHECK_HEADER([GL/glx.h], [enable_glx=yes], [enable_glx=no])
 AM_CONDITIONAL([GLX], [test "$enable_glx" != "no"])
 
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