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# tcgetattr.m4
# serial 1
dnl Copyright (C) 2002-2025 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.
dnl This file is offered as-is, without any warranty.
AC_DEFUN([gl_HAVE_TCGETATTR],
[
dnl We can't use AC_CHECK_FUNC here, because tcgetattr() is defined as a
dnl static inline function when compiling for Android 4.4 or older.
AC_CACHE_CHECK([for tcgetattr], [gl_cv_func_tcgetattr],
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <termios.h>
struct termios x;
]],
[[return tcgetattr(0,&x);]])
],
[gl_cv_func_tcgetattr=yes],
[gl_cv_func_tcgetattr=no])
])
if test $gl_cv_func_tcgetattr = yes; then
HAVE_TCGETATTR=1
else
HAVE_TCGETATTR=0
fi
AC_DEFINE_UNQUOTED([HAVE_TCGETATTR], [$HAVE_TCGETATTR],
[Define to 1 if the system has the 'tcgetattr' function.])
])
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