[PATCH] D12689: [libc++][static linking] std streams are not initialized prior to their use in static object constructors

[Evgeny Astigeevich via cfe-commits]

eastig added a comment.

In http://reviews.llvm.org/D12689#243295, @rnk wrote:

> I think a better approach would be to use `__attribute__((init_priority(101)))` on Linux and `#pragma init_seg(lib)` on Windows to ensure that libc++'s iostream initializer runs earlier.


Thank you for advice.

I found this discussion of init_priority: Clarification of attribute init_priority
https://gcc.gnu.org/ml/gcc-help/2011-05/msg00220.html

It looks like it is not reliable method (https://gcc.gnu.org/ml/gcc-help/2011-05/msg00221.html):

> Note that although the documentation doesn't seem to mention it, the

>  init_priority attribute only works correctly when using the GNU linker

>  or gold.


Gcc libc++ does not use it.


http://reviews.llvm.org/D12689