Re: [Plplot-devel] Intermittent Ada example build failures are now back again

[Jerry B. <lis...@ic...>]

> On Jul 16, 2018, at 10:10 AM, Alan W. Irwin <Ala...@gm...> wrote:
> 
> On 2018-06-09 13:30-0700 Alan W. Irwin wrote:
> 
>> On 2018-04-15 11:15-0700 Alan W. Irwin wrote:
>> 
>>> Hi Jerry:
>> [...]
>>> So once this Ada build issue appeared again for me yesterday after all
>>> those previous successful hardware checks, I did a google search for
>>> the terms (without the quotes) "gnatmake intermittent build error" and
>>> found
>>> <https://gcc.gnu.org/bugzilla/show_bug.cgi?format=multiple&id=65451>
>>> which was a bug report in 2015 about intermittent Ada build issues
>>> which was immediately fixed back then.  However, my gnat version (=
>>> 4.9.2) is from 2014 so I don't have that bugfix and I am pretty sure
>>> at this stage that bug 65451 is the issue that is causing the
>>> intermittent Ada build issues for me. Therefore, I plan to use the
>>> -DENABLE_ada=OFF option for my further testing until I can get access
>>> to a later version of the Ada build tools myself, and I suggest others
>>> who currently don't have access to Ada build tools with bug 65451
>>> fixed should do the same.
>> 
>> Just to follow up for Debian Buster with gnat-7 (as opposed to gnat-4 that I
>> was using for Debian Jessie) the first test of Ada has been a complete success.
>> See commit 994723471 for the details of the tests I ran.
> 
> Hi Jerry:
> 
> I just ran into this issue for the first time for my new hardware and
> latest Ada/gnat (version 7.3.0) from Debian Buster (sigh).  I was
> doing a parallel build (with -j10 for my new system with 8 real
> cores), when the following error was encountered:
> 
> ./plplot_standard.o: file not recognized: File truncated
> collect2: error: ld returned 1 exit status
> gnatlink-7: error when calling /usr/bin/gcc-7
> gnatmake: *** link failed.
> examples/ada/CMakeFiles/xstandard30a.dir/build.make:77: recipe for target 'examples/ada/xstandard30a' failed
> make[3]: *** [examples/ada/xstandard30a] Error 4
> 
> A google search found
> <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=857831> which
> appears to be a similar (or the same bug) for 7.1.  At the time, the
> Debian packagers thought they had a fix, but it seems from my
> experience either that was not true or else the fix has not been
> propagated to 7.3. I have just now privately reported the situation to
> Matthias Klose (the author of the bug 857831 report, and they guy who
> decided that bug was fixed), and we will see what he says.  But to
> work around this problem until it is fixed for Debian Buster, I plan
> to use -DENABLE_ada=OFF for my testing.
> 
> Alan

Thanks for the update, Alan. Keep me posted.
Jerry