Re: [PATCH conntrack-tools] configure: Fix flex version check

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Hi Shivani,

Thanks for following up on this, see comment below.

On Sat, Jun 18, 2016 at 12:47:43AM +0530, Shivani Bhardwaj wrote:
> Following the fixes for version check in iptables and nftables, make
> conntrack-tools avoid generating false warning for Flex version greater
> than 2.5.x.
> 
> Signed-off-by: Shivani Bhardwaj <shivanib134@xxxxxxxxx>
> ---
>  configure.ac | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/configure.ac b/configure.ac
> index c541034..3bc5155 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -46,7 +46,7 @@ flex_major=`echo $flex_version| cut -d . -f 1`
>  flex_minor=`echo $flex_version| cut -d . -f 2`
>  flex_rev=`echo $flex_version| cut -d . -f 3`
>   
> -if test "$flex_major" -eq "2" && test "$flex_minor" -eq "5" && test "$flex_rev" -ge "33"; then
> +if (test "$flex_major" -eq "2" && test "$flex_minor" -eq "5" && test "$flex_rev" -ge "33") || (test "$flex_major" -eq "2" && test "$flex_minor" -gt "5") || test "$flex_major" -gt "2"; then
>  	AC_MSG_RESULT([$flex_version. OK])
>  else
>  	AC_MSG_WARN([flex version $flex_version found.

I'm starting to think that it's better to get rid of this version
check. This was introduced in 2008:

        ed50c34 ("add flex version warning (better with >= 2.5.33)")

I can see RPM packages for 2.5.53 since 2008.

The development of conntrack-tools a bit before that time, so I think
it's better to nuke these checks, better since we have less code to
maintain :)

Thanks.
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