Hi,

I'm working on a closed-source c++ project that compiles with gcc 11.2.  We
need to ship the GNU 11.2 run-time alongside our product, and it looks like
the std::barrier header is missing the GPL3 carve-out for shipping
run-times.

For the purposes of comparison, let's look at algorithm:
https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/include/std/algorithm

Lines 16-18 read as follows:
  // Under Section 7 of GPL version 3, you are granted additional
  // permissions described in the GCC Runtime Library Exception, version
  // 3.1, as published by the Free Software Foundation.

These lines are necessary to prevent the GPL infecting our closed-source
code.

The barrier header appears to be missing these lines:
https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/include/std/barrier


Would it be possible to please make the following changes?
1.  Add these lines to the master branch,
2.  Backport these lines to gnu 11.2 (which is the most recent version
supported by our toolchain).

Thanks,
Tom


-- 
Tom James

Siemens Digital Industries Software
Simulation and Test Solutions, Solution Domains Development, Server,
Platform, Simulation Framework, High Performance Computing
thomasjames@siemens.com
sw.siemens.com