[ovs-dev] [PATCH 1/2] automake: Add AM_LDFLAGS while linking ovs-vswitchd.

Gurucharan Shetty shettyg at nicira.com
Mon Aug 18 17:28:44 UTC 2014


On Mon, Aug 18, 2014 at 9:51 AM, Ben Pfaff <blp at nicira.com> wrote:
> On Mon, Aug 18, 2014 at 07:48:10AM -0700, Gurucharan Shetty wrote:
>> Commit d73105839 (netdev-dpdk: Move to DPDK 1.7.0) added
>> 'vswitchd_ovs_vswitchd_LDFLAGS' in acinclude.m4. This caused the
>> created Makefile to use 'vswitchd_ovs_vswitchd_LINK' without
>> including 'AM_LDFLAGS'. This causes failure while building ovs-vswitchd
>> with external libraries (ex: ovs-vswitchd on Windows with openssl.)
>>
>> This commit adds 'AM_LDFLAGS' to the new 'vswitchd_ovs_vswitchd_LDFLAGS'.
>>
>> Signed-off-by: Gurucharan Shetty <gshetty at nicira.com>
>
> I didn't review commit d73105839 until now.  I don't think it's wise
> to substitute an Automake-owned variable that way.  It's not commonly
> done, so it might confuse readers (it would confuse me), and I doubt
> that Automake guarantees that it will continue to work.
>
> I would rather see acinclude.m4 substitute some variable whose name is
> not owned by Automake, e.g. DPDK_LDFLAGS, and then in automake.mk
> write vswitchd_ovs_vswitchd_LDFLAGS = $(AM_LDFLAGS) $(DPDK_LDFLAGS).
>
> Does that make sense?
Yes, it makes sense. Daniele will be sending an updated patch.

>
> Thanks,
>
> Ben.



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