[swift-dev] Issues when building swift using GNU 2.26 related to protected symbols

[William Dillon]

Geez, VMs are slow… :)

So, I was able to reproduce Dmitri’s error on 16.04.  Adding -Bsymbolic to the linker arguments in cmake/modules/AddSwift.cmake makes it go away.  Of course, it is unsatisfying to have this regression after Joe’s excellent work making them obsolete.

- Will

> On Feb 22, 2016, at 11:11 AM, William Dillon via swift-dev <swift-dev at swift.org> wrote:
> 
> I’ll see what I can find.  I’m bringing up a VM.
> 
>> On Feb 22, 2016, at 10:58 AM, Dmitri Gribenko <gribozavr at gmail.com> wrote:
>> 
>> On Mon, Feb 22, 2016 at 10:39 AM, Joe Groff <jgroff at apple.com> wrote:
>>> 
>>>> On Feb 22, 2016, at 10:33 AM, Dmitri Gribenko <gribozavr at gmail.com> wrote:
>>>> 
>>>> On Mon, Feb 22, 2016 at 10:27 AM, William Dillon
>>>> <william at housedillon.com> wrote:
>>>>> is there a reliable way to trigger the error?  I haven’t seen this on any of my machines (all Ubuntu 14.04 or 15.<whatever>)
>>>> 
>>>> Try building on Ubuntu 16.04 or Debian Sid.
>>> 
>>> 16.04 isn't released till April, right?
>> 
>> Right.
>> 
>>> Any chance we can report this problem to them and hopefully get a fix before then?
>> 
>> Possibly.  Someone other than me should do this, though.  William, if
>> you are interested, could you do this?  It would be best if we could
>> create a simple example that demonstrates the issue.
>> 
>> Dmitri
>> 
>> -- 
>> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
>> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr at gmail.com>*/
> 
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