Ensure g++ is a dependency on openSUSE

[richcalaway]

Using an openSUSE image from Azure, I could install and run RRO, but when I tried to install the SuppDists package to run the R benchmarks, I get a message

make: g++: Command not found
make: *** [dists.o] Error 127
ERROR: compilation failed for package 'SuppDists'

• removing '/usr/lib64/RRO-3.2.1/R-3.2.1/lib64/R/library/SuppDists'

Adding g++ with the following command run from a root shell did the trick; perhaps we need an installation note?

zypper in gcc-c++

[j-martens]

I believe we install gcc for other platforms. Can we do it for openSUSE as well?

[revodavid]

The right solution may be to make GCC/G++ install dependencies, if that's supported by the openSUSE package manager we use.

[nriesland]

openSUSE package manager support installing gcc++

From: David Smith [mailto:[email protected]]
Sent: Tuesday, July 14, 2015 10:10 AM
To: RevolutionAnalytics/RRO
Subject: Re: [RRO] Could not install SuppDists package on openSUSE because of missing g++ (#190)

The right solution may be to make GCC/G++ install dependencies, if that's supported by the openSUSE package manager we use.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/190#issuecomment-121249166.

[richcalaway]

gcc is there; g++ was missing...

[sfweller]

I think for now, we should just document the workaround for the next release:
(unless you disagree Josee):

zypper install gcc-c++

[sfweller]

Confirmed that this resolves the problem and allows SuppDists to be installed.

[j-martens]

Listed as a manual install step for 3.2.1. However, needs to be handled by the installer in our next release. The distro needs to have this as a dependency going forward.

[QuantDevHacks]

Just noting that this was also an issue on a CentOS 6 VM that I set up on Azure. Just did
yum install gcc-c++
and it solved the problem. (H/T to Steve W)