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wget/m4/fseeko.m4
2008-05-29 17:43:26 -07:00

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956 B
Plaintext

# fseeko.m4 serial 4
dnl Copyright (C) 2007-2008 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.
AC_DEFUN([gl_FUNC_FSEEKO],
[
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
dnl Persuade glibc <stdio.h> to declare fseeko().
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko],
[
AC_TRY_LINK([#include <stdio.h>], [fseeko (stdin, 0, 0);],
[gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no])
])
if test $gl_cv_func_fseeko = no; then
HAVE_FSEEKO=0
gl_REPLACE_FSEEKO
elif test $gl_cv_var_stdin_large_offset = no; then
gl_REPLACE_FSEEKO
fi
])
AC_DEFUN([gl_REPLACE_FSEEKO],
[
AC_LIBOBJ([fseeko])
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
REPLACE_FSEEKO=1
])