Bruno Haible <bruno@clisp.org> writes:

> Hi Simon,
>
>> Essentialy it boils down to:
>> 
>> ../../gltests/test-binary-io.sh: line 8: cmp: command not found
>> test-init.sh: failed test: err not empty: ../../gltests/init.sh:
>> line 648: cmp: command not found
>> ../../gltests/test-perror.sh: line 14: diff: command not found
>
> 'cmp' and 'diff' are among the programs that a 'configure' script and a Makefile
> can assume to be present, see the GNU Coding Standards
> <https://www.gnu.org/prep/standards/html_node/Utilities-in-Makefiles.html>.

Hi Bruno.  Thanks for the pointer!  I believe this resolves my concern.

It would be nice to reduce that set of tools.  Is there any automated
purpose for diff other than a fancy cmp?

/Simon