warning during installation with new gcc version

[Steven Hofmeyr]

During an installation on a Linux (stock Ubuntu 17.04) system, the installer prints out the following warning:

WARNING: Your C++ compiler or platform has not been validated to run UPC++
WARNING: We recommend Linux or OS X with one of the following C++ compilers: g++ 5.1.0 or newer, LLVM/clang 3.7.0 or newer, Xcode/clang 8.0.0 or newer

The version of gcc being used is 6.3.0, clearly > 5.1.0.

[Dan Bonachea]

Steve - please provide the FULL output of the install script (up until the warning).

I added all that status output to help us debug user bug reports exactly like this one.

[Dan Bonachea]

I think I see the problem, will commit a fix soon.

[Dan Bonachea]

Fix issue #33: install warning on modern g++

Expand the g++ --version parsing to be more permissive and accept the output syntax used in some distributions.

Also add a final output message when installation fails to direct and improve the quality of bug reports.

→ <<cset e87dac8715ba>>