Hey Wilfred, well thanks for using my library, the right place would be to write an issue here www.github.com/klemens-morgenstern/boost-process . No need for this issue though, I'll take care of that right now, thanks for reporting. Am 02.08.2017 um 21:55 schrieb Wilfred Smith via Boost:

Dear Sir or Madam,

In Boost 1.64.0,

include/boost/process/detail/posix/wait_group.hpp:131:10: warning: unused variable 'start' [-Wunused-variable] auto start = std::chrono::system_clock::now(); ^ /usr/local/include/boost/process/detail/posix/wait_group.hpp:165:10: warning: unused variable 'start' [-Wunused-variable] auto start = std::chrono::system_clock::now(); ^

I believe these two lines should be removed. This appears to be a “copy and paste” issue. The two routines above these lines use the “start” variable to calculate a relative time. However, the later two routines use an absolute time, and the compiler complains as shown above.

Removing these two lines should fix the compiler warning and have no adverse effect.

Please let me know if this is the wrong place to complain about issues.

\W/

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