[lsst-dm-stack-users] Troubles building Winter2013Beta on Ubuntu 11.04

[Heather Kelly]

One of our collaborators in Paris was trying to install the Winter2013Beta
from source on Unbuntu 11.04.  He has followed the instructions but has run
into a compilation error.  Actually.. we did go back and note the linking
updating:
Ubuntu 12.04 specific
step<https://dev.lsstcorp.org/trac/wiki/Installing/Winter2013#Ubuntu12.04specificstep>

Starting with Natty Narwhal (Ubuntu 11.04), Ubuntu changed the behavior of
the linker (for details, see
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition). While this is
intended to make linking more robust, this currently breaks the LSST build.
To undo the effects of these changes, add the following environment
variables

export LDFLAGS+=" -Wl,--no-as-needed"
SCONSFLAGS+=" LINKFLAGS='-Wl,--no-as-needed' --setenv"

and following those additional instructions didn't help, as likely expected
since this appears to be a compilation issue.  It did seem to cause the
error to come up for FootprintSet.cc rather than Footprint.cc

Here are the details:

I did not succeed in installing the Winter2013Beta stack version
 - on Ubuntu 11.04,
 - with C++ compiler g++ version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)


Hereafter is a copy of my logfile :

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%**%%%%%%%%%%%%%

  Now try installing the beta version Winter13,
  following the 'Step by step instructions (for Linux)' wiki section :

  $ unset LSST_HOME EUPS_PATH
  $ mkdir DMSwinter13; cd DMSwinter13
  $ curl -O http://sw.lsstcorp.org/pkgs/**std/w12/newinstall.sh<http://sw.lsstcorp.org/pkgs/std/w12/newinstall.sh>
  $ bash newinstall.sh

  $ export LANG=C; export CC=clang; export CXX=clang++;
  $ export NCORES [...]; export MAKEFLAGS="-j $NCORES"
  $ export SCONSFLAGS="-j $NCORES"

  $ source loadLSST.sh
  $ eups distrib install --nolocks -t v6_1 lsst_distrib

 ==> install
{ external/pyfits/3.1+1 , sconsUtils/6.1.0.1+2 , base/6.1.0.0+1 ,
lsst_thirdparty/6.1.0.3+1 , testing_displayQA/6.1.0.0+3 , ndarray/6.1.0.0+1
, pex_exceptions/6.1.0.0+1 , utils/6.1.0.0+1 , daf_base/6.1.0.0+1 , geom/
6.1.0.0+1 , pex_logging/6.1.0.0+1 , pex_policy/6.1.0.0+1 , daf_persistence/
6.1.0.0+1 , pex_config/6.1.0.0+1 } successfully

but failed installing 'afw/6.1.1.1+1' at 'Footprint.cc' stage, with error :
"""
include/lsst/afw/table/**BaseColumnView.h:107:5: error: 'result_of' in
namespace 'ndarray' does not name a type
"""

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%**%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%**%%

It's the same error as for Summer2012, which we traced back and somehow
solved by adding '#include "ndarray/vectorize.h"' in the file
'include/lsst/afw/table/**BaseColumnView.h', and re-issuing the last c++
compilation command line, as copied from the 'build.log' file (attached).
Then, there are no warnings and no errors when compiling Footprint.cc .

But I had no clue on how to resume the installation of the remaining source
files and packages from this point.
Also, I don't know if such a modification may or not introduce errors when
compiling other source files which depend on ndarray !?




Any thoughts would be helpful!

Take care,
Heather
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