[ovs-dev] OVN/OVS Split POC: version 2

[Ben Pfaff]

On Tue, Mar 26, 2019 at 04:15:07PM -0400, Mark Michelson wrote:
> I've once again rolled another OVN/OVS split version. It can be found at
> https://github.com/putnopvut/ovn_mk2.git
> 
> The main changes between this and the old split POC are as follows:
> 
> * This is based on a much newer build of OVS master. Therefore, build errors
> people had with dhparams.c *should* be cleared up.
> 
> * This fixes errors with manpages.mk generation/checking, so there is no
> need to do a pointless `touch` of manpages.mk during the build process.
> 
> * In many cases, rather than hard-coding paths to OVS, we use variables.
> This isn't universally applied, but it's used for the locations of C
> headers, libraries, and manpages.
> 
> Please give this a look and let me know what you think.

This builds cleanly for me when srcdir==builddir.  I get a failure if I
use a separate builddir, as is my usual habit, e.g.:

    blp at sigill:~/nicira/ovn_mk2/_build(2)$ make -j10
    make  all-recursive
    make[1]: Entering directory '/home/blp/nicira/ovn_mk2/_build'
    Making all in ovs
    make[2]: Entering directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    make  all-recursive
    make[3]: Entering directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    Making all in datapath
    make[4]: Entering directory '/home/blp/nicira/ovn_mk2/_build/ovs/datapath'
    make[5]: Entering directory '/home/blp/nicira/ovn_mk2/_build/ovs/datapath'
    make[5]: Leaving directory '/home/blp/nicira/ovn_mk2/_build/ovs/datapath'
    make[4]: Leaving directory '/home/blp/nicira/ovn_mk2/_build/ovs/datapath'
    make[4]: Entering directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    make[4]: Leaving directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    make[3]: Leaving directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    make[2]: Leaving directory '/home/blp/nicira/ovn_mk2/_build/ovs'
    make[2]: Entering directory '/home/blp/nicira/ovn_mk2/_build'
    make[2]: *** No rule to make target '../ovs/ovsdb/libovsdb.la', needed by 'utilities/ovn-nbctl'.  Stop.
    make[2]: *** Waiting for unfinished jobs....
    make[2]: Leaving directory '/home/blp/nicira/ovn_mk2/_build'
    make[1]: *** [Makefile:3335: all-recursive] Error 1
    make[1]: Leaving directory '/home/blp/nicira/ovn_mk2/_build'
    make: *** [Makefile:2205: all] Error 2
    blp at sigill:~/nicira/ovn_mk2/_build(2)$ 

But that's a minor thing and I expect you can fix it easily.  I think
this is pretty much ready to go.  What do you think should be the next
step?