On 11/7/2022 1:39 PM, Clinton Bunch wrote:
> On 11/6/2022 1:32 PM, Clinton Bunch wrote:
>> On 11/6/2022 1:09 PM, Bart Schaefer wrote:
>>> On Sun, Nov 6, 2022 at 10:35 AM Clinton Bunch <cdb_zsh@zentaur.org> 
>>> wrote:
>>>> Solaris 11.4 at least also has GNU diff as gdiff.
>>> Use of "diff -a" hasn't changed since at least 2017.  Is it possible
>>> that there's been a default (or your own) PATH change causing the
>>> POSIX diff to be found in preference?
>>>
>>
>>
>>
> I'm working on a patch to check if diff supports -a, check if gdiff is 
> in the path.  If both of those fail, do we want to run without -a or 
> abort and kindly suggest they install GNU diff?
>
Here's a patch that has configure check for an appropriate diff in the 
path and if it fails to find one runs diff without -a in the test harness