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Re: [PATCH] tools/configure: drop BASH configure variable [and 1 more messages]

  • To: Jan Beulich <jbeulich@xxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Fri, 31 Jul 2020 14:46:09 +0100
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  • Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Paul Durrant <paul@xxxxxxx>
  • Delivery-date: Fri, 31 Jul 2020 13:46:20 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 31/07/2020 14:30, Jan Beulich wrote:
> On 31.07.2020 15:02, Ian Jackson wrote:
>> Jan Beulich writes ("Re: [PATCH] tools/configure: drop BASH configure 
>> variable"):
>>> On 29.06.2020 14:05, Ian Jackson wrote:
>>>> Jan Beulich writes ("Re: [PATCH] tools/configure: drop BASH configure 
>>>> variable"):
>>>>> On 26.06.2020 19:00, Andrew Cooper wrote:
>>>>> ... this may or may not take effect on the file system the sources
>>>>> are stored on.
>>>> In what circumstances might this not take effect ?
>>> When the file system is incapable of recording execute permissions?
>>> It has been a common workaround for this in various projects that
>>> I've worked with to use $(SHELL) to account for that, so the actual
>>> permissions from the fs don't matter. (There may be mount options
>>> to make everything executable on such file systems, but people may
>>> be hesitant to use them.)
>> I don't think we support building from sources which have been
>> unpacked onto such filesystems.  Other projects which might actually
>> need to build on Windows or something do do this $(SHELL) thing or an
>> equivalent, but I don't think that's us.
> It's not unexpected that you think of Windows here, but my thoughts
> were more towards building from sources on a CD or DVD, where iirc
> execute permissions also don't exist. The latest when we have
> out-of-tree builds fully working, this ought to be something that
> people should be able to do, imo. (Even without out-of-tree builds,
> my "next best" alternative of using a tree of symlinks to build in
> would similarly have an issue with the links pointing at a mounted
> CD/DVD, if the $(SHELL) wasn't present.)

See v2.  I put $(SHELL) in, because it isn't a worthwhile use of our
time to continue arguing over this point.




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