From d17b03d4d4525103f1995441045eae4c2c73355d Mon Sep 17 00:00:00 2001
From: Herbert Valerio Riedel <hvr@gnu.org>
Date: Sat, 30 Jan 2016 16:46:56 +0100
Subject: Don't assume `tcdrain` and `ctermid` exist always

This follows the scheme suggested in #24

This fixes #55
---
 configure.ac | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 24ea3a5..f883624 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,6 +80,19 @@ AC_CHECK_DECLS([fdatasync],[AC_CHECK_FUNCS([fdatasync])])
 
 AC_CHECK_FUNCS([posix_fadvise posix_fallocate])
 
+# Some termios(3) functions known to be missing sometimes (see also #55)
+AC_CHECK_DECLS([tcdrain],[AC_DEFINE([HAVE_TCDRAIN],[1],[Define to 1 if you have the `tcdrain' function.])],[],[AC_INCLUDES_DEFAULT
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+])
+
+AC_CHECK_DECLS([ctermid],[AC_DEFINE([HAVE_CTERMID],[1],[Define to 1 if you have the `ctermid' function.])],[],[AC_INCLUDES_DEFAULT
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+])
+
 # Avoid adding rt if absent or unneeded
 # shm_open needs -lrt on linux
 AC_SEARCH_LIBS(shm_open, rt, [AC_CHECK_FUNCS([shm_open shm_unlink])])
-- 
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