Re: avoiding program name transformations on libexec

[Pádraig Brady]

On 09/10/2014 03:31 PM, Pádraig Brady wrote:
> On 09/10/2014 03:08 PM, Nick Bowler wrote:
>> On 2014-09-10 10:22 +0100, Pádraig Brady wrote:
>>> I was able to work around the issue here as there is only a single
>>> item in libexec in my project which I excluded from $(transform) like:
>>>
>>>   transform = /myprog/!$(program_transform_name)
>>
>> This seems like a reasonable solution.  But be careful: the above
>> won't work if program_transform_name (which is set by the user) contains
>> nontrivial sed commands.  For example, it will fail if it contains a
>> semicolon.
>>
>> Something like this should be more robust (but untested):
>>
>>   transform = /myprog/q;$(program_transform_name)
> 
> Good suggestion.
> The above is more robust and portable according to my testing and:
> http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Limitations-of-Usual-Tools.html#Limitations-of-Usual-Tools

Though in retrospect less appropriate for this case,
as the Makefile uses $(transform) like:

  sed ....s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'

so we don't want transform to break out early
and not replace EXEEXT where that's used.

cheers,
Pádraig.