Hi All,
Sorry to beat this potentially dead horse - if this doesn't end
up being feasible, I promise not to bring up this subject again for a
really long time. Regarding running newer versions of GCC, and
perhaps starting to make use of (some) C++11, I noticed two things
that may be of interest.
1. Red Hat Developer Toolset 2.0 (see http://developerblog.redhat.com/
tag/developer-toolset/).
This includes gcc 4.8 and up-to-date strace, memstomp, valgrind,
systemtap, etc...
Looks like it installs alongside the system toolchain rather than
replacing it, and allows you to ship binaries built with the newer
GCC without distributing a whole bunch of ancillary libraries (e.g.
an updated libstdc++). This is accomplished by statically linking new
symbols into your binary; details here: http://www.redhat.com/
developerexchange/Red_Hat_Summit_2013_DevDay-Matt_Newsome-v0.8.pdf .
Quote from that slidedeck:
Why Offer a Developer Toolset?
* Single most common request from customters, partners and ISVs.
2. Red Hat Software Collections (see http://developerblog.redhat.com/
2013/09/12/rhscl1-ga/, https://access.redhat.com/site/solutions/
472793). Notable inclusions here are Python 2.7/3.3, Mysql 5.5,
MariaDB 5.5, and Postgres 9.2.
This seems like it has the potential to reduce the qserv packaging
burden and to enable use of (some subset of) C++11.
But unfortunately, these meta-packages require access to some kind of
red-hat subscriptions / channels (??), and `yum list devtoolset-2.0`
gives "no matching package" errors on SLAC / NCSA Linux boxes.
What do people think of making use of these? Does SLAC happen to
already have the appropriate subscriptions by some lucky coincidence?
Serge
P.S. CERN has version 1.1 (gcc 4.7 and slightly older versions of the
other tools) of this available for Scientific Linux 6 here: http://
linux.web.cern.ch/linux/devtoolset/. Looks like an update is in
testing (e.g. http://mirror.ihep.ac.cn/cern/devtoolset/slc6X/testing/
x86_64/yum/devtoolset-testing/). Software collections 1.0 is
available (http://linux.web.cern.ch/linux/scl/).
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