libupcxx build should echo GASNet configure summary

[Paul Hargrove]

This is a feature request being split off from issue 518. The other aspects of that issue are related to behavior of configure, while this is a request for new behavior in make all.

Quoting from the original text:

Add a mechanism to grep the GASNet configure warnings and summary from bld/gasnet.debug/config.txt and echo it to the console at the end of libupcxx build. This is probably worth doing for other reasons as well.

There was some brief discussion of this feature in two comments on issue 518:

• https://bitbucket.org/berkeleylab/upcxx/issues/518#comment-61706159
• https://bitbucket.org/berkeleylab/upcxx/issues/518#comment-61706301

[Dan Bonachea]

Mass roll-over of open issues to next release milestone

[Dan Bonachea]

Mass roll-over of open issues to next release milestone

[Dan Bonachea]

issue #519: libupcxx build should echo GASNet configure summary

New config-summary target echos the GASNet config summary, currently favoring the output from GASNet's opt config (when both are available).. This summary is displayed at the end of the UPC++ build step, and can also be queried manually in a build tree with make config-summary

The summary is also installed as a separate file in each GASNet directory for post-install inspection.

Resolves issue #519

→ <<cset 1b24ef05bc94>>