2 dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_TCGETSID],
9 AC_REQUIRE([gl_TERMIOS_H_DEFAULTS])
11 dnl Persuade glibc <termios.h> to declare tcgetsid().
12 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
14 AC_CHECK_DECLS_ONCE([tcgetsid])
15 if test $ac_cv_have_decl_tcgetsid = no; then
19 AC_CHECK_FUNCS([tcgetsid])
20 if test $ac_cv_func_tcgetsid = no; then
26 # Prerequisites of lib/tcgetsid.c.
27 AC_DEFUN([gl_PREREQ_TCGETSID], [