[cfe-dev] __attribute__((weak)) possible regression in clang 3.6 since 3.5

[Ben Pope]

On Wednesday, February 18, 2015 12:35 AM, Rafael Espíndola wrote:
>
> On 16 February 2015 at 05:00, Ben Pope <benpope81 at gmail.com> wrote:
>> Whilst compiling RxCpp with clang 3.6 I get this error (and lots more very
>> similar):
>> `.text.startup' referenced in section `.text.startup' of
>> CMakeFiles/rxcppv2_test.dir/home/ben/development/test/rxcpp/RxCpp/Rx/v2/test/subscriptions/subscription.cpp.o:
>> defined in discarded section
>> `.text.startup[_ZN5rxcpp22composite_subscription12shared_emptyE]' of
>> CMakeFiles/rxcppv2_test.dir/home/ben/development/test/rxcpp/RxCpp/Rx/v2/test/subscriptions/subscription.cpp.o
>>
>> shared_empty is declared like this, in a header file:
>> __attribute__((weak)) composite_subscription
>> composite_subscription::shared_empty =
>> composite_subscription(detail::tag_composite_subscription_empty());
 >
 > Can you report a bug with a preprocessed file that shows the warning?
 > Or at least detailed instructions on how to build RxCpp?

http://llvm.org/bugs/show_bug.cgi?id=22623

I went with build instructions as I don't know how to create the 
preprocessed file, as it has to link a lot of files together, and 
besides, they're huge.

Ben