Possible patch for sox build failure on 10.7

[Joshua Root]

On 2017-8-9 16:44 , Kenneth F. Cunningham wrote:
> 
> On 2017-08-09, at 1:05 AM, Joshua Root wrote:
> 
>> Perhaps someone with access to a 10.7 machine could try this.
>>
>> - Josh
>> <sox-portfile.diff>
> 
> Yep, that should do it.  Deactivating MacPorts grep, sox build fails - activating MacPorts grep fixes the build on 10.7. I have other things installed that get pulled in (gsed, otools) so this is not a buildbot, but grep should do the trick.

Thanks.

> Is sox building on the 10.5 and 10.6 buildbots? If so, don't know how / why.
> 
> Can I suggest this patch be applied to all systems <= 10.7? They probably all need the new grep to build it.

They don't. This is a problem with the specific version of grep shipped 
with Lion, which has been noted by others, usually in a "this worked on 
10.6 but 10.7 breaks it" kind of way. E.g. 
<https://www.finetunedmac.com/forums/ubbthreads.php?ubb=showflat&Number=19371>

- Josh