tcgetsid: Detect declaration correctly.

* m4/tcgetsid.m4 (gl_FUNC_TCGETSID): Use correct headers in
AC_CHECK_DECLS invocation.
Reported by Simon Josefsson.

diff --git a/ChangeLog b/ChangeLog
index 3fd0c47..46de43c 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-08-08  Bruno Haible  <bruno@clisp.org>
+
+       tcgetsid: Detect declaration correctly.
+       * m4/tcgetsid.m4 (gl_FUNC_TCGETSID): Use correct headers in
+       AC_CHECK_DECLS invocation.
+       Reported by Simon Josefsson.
+
 2011-08-08  Eric Blake  <eblake@redhat.com>
 
        largefile: fix typo that regressed large file support

diff --git a/m4/tcgetsid.m4 b/m4/tcgetsid.m4
index 31e034a..5dc98c9 100644 (file)
--- a/m4/tcgetsid.m4
+++ b/m4/tcgetsid.m4
@@ -1,4 +1,4 @@
-# tcgetsid.m4 serial 3
+# tcgetsid.m4 serial 4
 dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -11,7 +11,7 @@ AC_DEFUN([gl_FUNC_TCGETSID],
   dnl Persuade glibc <termios.h> to declare tcgetsid().
   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
-  AC_CHECK_DECLS_ONCE([tcgetsid])
+  AC_CHECK_DECLS([tcgetsid], , , [[#include <termios.h>]])
   if test $ac_cv_have_decl_tcgetsid = no; then
     HAVE_DECL_TCGETSID=0
   fi