Verbose output from configuration checks

Subject: Verbose output from configuration checks
From: Simon Richter (Simon.Richter_at_[hidden])
Date: 2018-01-17 22:42:08

Hi,

after switching from MSVC 14.1 to 15.0, I now have output from bjam and
cl in the log file during the "Performing Configuration Checks" phase,
which causes Jenkins to yell at me for having compile errors in a
project that reports to build successfully.

I have no immediate idea how a newer compiler version would affect
bjam's behavior here; the Boost version and commandline for b2 are the same.

With MSVC 14.1:

http://darine.hogyros.de:8080/job/windows-boost-msvc/build=release,cpu=amd64,label=msvc/25/consoleFull

With MSVC 15.0:

http://darine.hogyros.de:8080/job/windows-boost-msvc/build=release,cpu=amd64,label=msvc/45/consoleFull

How does b2 decide whether to generate output and/or redirect the output
from the compiler?

   Simon