[cfe-dev] clang, g++, icc link compatibity?

[Christian Convey]

So, modulo any shenanigans about clang and gcc finding different STL
headers/libs, and modulo any bugs, as long as they're using the same
Itanium ABI version, I'm probably okay?

On Mon, May 11, 2015 at 3:19 PM, David Blaikie <dblaikie at gmail.com> wrote:

>
>
> On Mon, May 11, 2015 at 12:08 PM, C Bergström <cbergstrom at pathscale.com>
> wrote:
>
>> On Tue, May 12, 2015 at 1:52 AM, Christian Convey
>> <christian.convey at gmail.com> wrote:
>> > Thanks David.  So it sounds like you're saying that all the previously
>> messy
>> > stuff like vtable layouts, exception handling, etc. are non-issues for
>> > current versions of those three compilers.  Is that right?
>>
>> David's reply is very very misleading -
>>
>> You're not only dealing with potential incompatibilities at the ABI
>> level. There is also the STL that can play a role.
>>
>
> Sure enough, thanks for the clarification.
>
>
>> Is clang using the system STL or libc++? (I think libc++ does play
>> nice with GNU STL in some circumstances, but not all afaik)
>>
>
> Clang is designed to find the same STL as any locally installed GCC
> (obviously if you use some non-default GCC (if you have multiple versions
> installed, etc) or force the use of libc++ that'll get more interesting).
>
>
>> If all 3 compilers are on the same page with the ABI, using the same
>> EH, the same STL and same runtime - yes in theory, barring things I
>> can't think right now - it should work.
>>
>> So double check which runtime/STL ICC is relying on.
>>
>
> *nod*
>
>
>
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