2 dnl Copyright (C) 2007, 2008, 2009, 2010 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_FTELLO],
9 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
10 AC_REQUIRE([AC_PROG_CC])
11 AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
13 dnl Persuade glibc <stdio.h> to declare fseeko().
14 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
16 AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello],
18 AC_TRY_LINK([#include <stdio.h>], [ftello (stdin);],
19 [gl_cv_func_ftello=yes], [gl_cv_func_ftello=no])
21 if test $gl_cv_func_ftello = no; then
24 if test $gl_cv_var_stdin_large_offset = no; then
28 if test $HAVE_FTELLO = 0 || test $REPLACE_FTELLO = 1; then
33 AC_DEFUN([gl_REPLACE_FTELLO],