gcc4* (gcc47/gcc48 at least) - future/promise code always fails with segmentation fault 11

[wuyongwei@…]

It seems any code using std::future or std::promise will fail with a segmentation fault. My searching for answers led to the question on StackOverflow. It seems many people have this problem.

​http://stackoverflow.com/questions/15778085/is-stdpromise-broken-on-my-machine-using-g-mp

As far as I know, such code does not even compile on Windows (w/ MinGW). On Linux, such code works very well. On Mac, it compiles but then fails.

I do not think the OS/Xcode version matters. Just for the record, the info is as below:

OS: OS X 10.7.5
Xcode: 10.6.1

[mf2k (Frank Schima)]

In the future, please Cc the port maintainer(s).

[jeremyhu (Jeremy Huddleston Sequoia)]

#38814

[cooljeanius (Eric Gallager)]

Cc Me!

[akimd (Akim Demaille)]

Cc Me!