Re: [Xen-devel] [PATCH v3 2/5] configure: make the libaio test conditional on blktap{1, 2}

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Jun 19, 2014 at 06:32:45PM +0200, Roger Pau Monne wrote:
> libaio is only required for blktap{1,2}, so make the check conditional
> on whether the user has requested blktap{1,2} or not.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> ---
> Please re-run autoconf after applying this patch.
> ---
> Changes since v2:
>  - Make libaio test conditional on whether blktap2 is also enabled.
> ---
>  tools/configure.ac |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/configure.ac b/tools/configure.ac
> index 836bbba..6d70f04 100644
> --- a/tools/configure.ac
> +++ b/tools/configure.ac
> @@ -262,7 +262,9 @@ AC_CHECK_HEADER([lzo/lzo1x.h], [
>  AC_CHECK_LIB([lzo2], [lzo1x_decompress], [zlib="$zlib -DHAVE_LZO1X -llzo2"])
>  ])
>  AC_SUBST(zlib)
> +AS_IF([test "x$enable_blktap1" = "xyes" || test "x$enable_blktap2" = 
> "xyes"], [
>  AC_CHECK_LIB([aio], [io_setup], [], [AC_MSG_ERROR([Could not find libaio])])
> +])

Libaio is needed by QEMU as well.

Wei.

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