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acinclude.m4
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acinclude.m4
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dnl Copyright (C) 2016 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([AC_PACKAGE_WANT_LINUX_FIEMAP_H],
[ AC_CHECK_HEADERS([linux/fiemap.h], [ have_fiemap=true ], [ have_fiemap=false ])
AC_SUBST(have_fiemap)
])
AC_DEFUN([AC_PACKAGE_WANT_LINUX_PRCTL_H],
[ AC_CHECK_HEADERS([sys/prctl.h], [ have_prctl=true ], [ have_prctl=false ])
AC_SUBST(have_prctl)
])
AC_DEFUN([AC_PACKAGE_WANT_LINUX_FS_H],
[ AC_CHECK_HEADER([linux/fs.h])
])
AC_DEFUN([AC_PACKAGE_WANT_FALLOCATE],
[ AC_MSG_CHECKING([for fallocate])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#define _GNU_SOURCE
#define _FILE_OFFSET_BITS 64
#include <fcntl.h>
#include <linux/falloc.h> ]], [[ fallocate(0, 0, 0, 0); ]])],[ have_fallocate=true; AC_MSG_RESULT(yes) ],[ have_fallocate=false; AC_MSG_RESULT(no) ])
AC_SUBST(have_fallocate)
])
AC_DEFUN([AC_PACKAGE_WANT_OPEN_BY_HANDLE_AT],
[ AC_MSG_CHECKING([for open_by_handle_at])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#define _GNU_SOURCE
#include <fcntl.h>
]], [[
struct file_handle fh;
open_by_handle_at(0, &fh, 0);
]])],[ have_open_by_handle_at=true; AC_MSG_RESULT(yes) ],[ have_open_by_handle_at=false; AC_MSG_RESULT(no) ])
AC_SUBST(have_open_by_handle_at)
])