llvm dev - Aug 2013 - [LLVMdev] [brlcad-devel] Clang vs. gcc for building BRL-CAD

On Fri, Aug 16, 2013 at 2:58 PM, Tom Browder <tom.browder at gmail.com>
wrote:
> On Fri, Aug 16, 2013 at 2:55 PM, Tom Browder <tom.browder at
gmail.com>wrote:
>
>> ...
>>
> I'll see if I can try it with gcc 4.7 soon.
>>
>
I haven't been able to build gcc 4.7.3 yet (prereq ppl build problems--I
think that's why I stopped building gcc some time ago), but I did have
success with building gcc-4.8.1 (ppl no longer required).

That has uncovered a slew of errors not caught with gcc 4.4.5 or clang 3.3.
 Note that the clang trunk bug I reported has been fixed so it will be
interesting to see if clang picks up the same (or other errors).

I need to convert to a debug build so I can get through all the
errors--will attach a list when complete.

Best regards,

-Tom
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On Sat, Aug 17, 2013 at 6:15 AM, Tom Browder <tom.browder at gmail.com>
wrote:
> On Fri, Aug 16, 2013 at 2:58 PM, Tom Browder <tom.browder at
gmail.com>wrote:
>
>>  On Fri, Aug 16, 2013 at 2:55 PM, Tom Browder <tom.browder at
gmail.com>wrote:
>>
>>>  ...
>>>
>> I'll see if I can try it with gcc 4.7 soon.
>>>
>>
> I haven't been able to build gcc 4.7.3 yet (prereq ppl build
problems--I
> think that's why I stopped building gcc some time ago), but I did have
> success with building gcc-4.8.1 (ppl no longer required).
>
>
Sorry for a bit of a false alarm: I forgot a BRL-CAD release build has
-Werror turned on, so I'm not yet sure if that affects clang or not
with the way I configured the CMake build (I merely changed the paths to
the C and C++ compilers)
.

 That has uncovered a slew of errors not caught with gcc 4.4.5
or
>
I should have said:


That has uncovered a slew of warnings not caught with gcc 4.4.5 or clang
3.3.

Best,

-Tom
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On Sat, Aug 17, 2013 at 7:08 AM, Tom Browder <tom.browder at gmail.com>
wrote:
> On Sat, Aug 17, 2013 at 6:15 AM, Tom Browder <tom.browder at
gmail.com>wrote:
>
>>  On Fri, Aug 16, 2013 at 2:58 PM, Tom Browder <tom.browder at
gmail.com>wrote:
>>
>>>  On Fri, Aug 16, 2013 at 2:55 PM, Tom Browder <tom.browder at
gmail.com>wrote:
>>>
>>>>  ...
>>>>
>>> I'll see if I can try it with gcc 4.7 soon
>>>>
>>>
>  That has uncovered a slew of errors not caught with gcc 4.4.5 or
>>  clang 3.3.
>>
>
Attached is a list of the gcc-4.8.1 warnings from a trunk rev 56916 build
(made into errors) that, for some reason, don't show in a debug build
(looks like compile flags may be different but I'm not sure at the
moment--need to dig into BRL-CAD CMake environment some more).

They look like legit problems but I haven't tried to fix them.

Best,

-Tom
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