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# dup2.m4 serial 1
dnl Copyright (C) 2002 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License. As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.
AC_DEFUN([gl_FUNC_DUP2],
[
AC_REPLACE_FUNCS(dup2)
if test $ac_cv_func_dup2 = no; then
gl_PREREQ_DUP2
fi
])
# Prerequisites of lib/dup2.c.
AC_DEFUN([gl_PREREQ_DUP2], [
AC_CHECK_HEADERS_ONCE(fcntl.h unistd.h)
])
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