AC_DEFUN([AC_PACKAGE_NEED_XFS_LIBXFS_H],
  [ AC_CHECK_HEADERS([xfs/libxfs.h])
    if test "$ac_cv_header_xfs_libxfs_h" != "yes"; then
        echo
        echo 'FATAL ERROR: cannot find a valid <xfs/libxfs.h> header file.'
        echo 'Install or upgrade the XFS development package.'
        echo 'Alternatively, run "make install-dev" from the xfsprogs source.'
        exit 1
    fi
  ])

AC_DEFUN([AC_PACKAGE_NEED_XFS_HANDLE_H],
  [ AC_CHECK_HEADERS([xfs/handle.h])
    if test "$ac_cv_header_xfs_handle_h" != "yes"; then
        echo
        echo 'FATAL ERROR: cannot find a valid <xfs/handle.h> header file.'
        echo 'Install or upgrade the XFS development package.'
        echo 'Alternatively, run "make install-dev" from the xfsprogs source.'
        exit 1
    fi
  ])

AC_DEFUN([AC_PACKAGE_NEED_LIBXFSINIT_LIBXFS],
  [ AC_CHECK_LIB(xfs, libxfs_init,, [
        echo
        echo 'FATAL ERROR: could not find a valid XFS base library.'
        echo 'Install or upgrade the XFS library package.'
        echo 'Alternatively, run "make install-dev" from the xfsprogs source.'
        exit 1
    ])
    libxfs="-lxfs"
    test -f `pwd`/../xfsprogs/libxfs/libxfs.la && \
        libxfs="`pwd`/../xfsprogs/libxfs/libxfs.la"
    test -f /usr/lib/libxfs.la && libxfs="/usr/lib/libxfs.la"
    AC_SUBST(libxfs)
  ])

AC_DEFUN([AC_PACKAGE_NEED_OPEN_BY_FSHANDLE],
  [ AC_CHECK_LIB(handle, open_by_fshandle,, [
        echo
        echo 'FATAL ERROR: could not find a current XFS handle library.'
        echo 'Install or upgrade the XFS library package.'
        echo 'Alternatively, run "make install-dev" from the xfsprogs source.'
        exit 1
    ])
    libhdl="-lhandle"
    test -f `pwd`/../xfsprogs/libhandle/libhandle.la && \
        libhdl="`pwd`/../xfsprogs/libhandle/libhandle.la"
    test -f /usr/lib/libhandle.la && libhdl="/usr/lib/libhandle.la"
    AC_SUBST(libhdl)
  ])

AC_DEFUN([AC_PACKAGE_NEED_XFSCTL_MACRO],
  [ AC_MSG_CHECKING([xfsctl from xfs/libxfs.h])
    AC_TRY_LINK([#include <xfs/libxfs.h>], [ int x = xfsctl(0, 0, 0, 0); ],
      [ echo ok ],
      [ echo
        echo 'FATAL ERROR: cannot find required macros in the XFS headers.'
        echo 'Upgrade your XFS programs (xfsprogs) development package.'
        echo 'Alternatively, run "make install-dev" from the xfsprogs source.'
        exit 1
      ])
  ])