[Halld-offline] Fwd: c++11 compilation error

[David Lawrence]

Hi Matt,

  One possibility is if your default environment doesn’t place the C++11 compliant compiler in
your PATH. Older SConstruct files don’t pull in your PATH environment so when it runs g++,
it is not running the one in your current shell. Your SConstruct should have something that looks
like this:

env = Environment(        ENV = os.environ,  # Bring in full environment, including PATH
                      CPPPATH = [include],
                      LIBPATH = ["%s/%s/lib" %(halld_home, osname)],  # n.b. add HALLD_HOME here and prepend HALLD_MY below
                  variant_dir = ".%s" % (osname))

That first argument with “os.environ” is critical.

Regards,
-David


> On Jun 21, 2016, at 6:51 AM, Shepherd, Matthew <mashephe at indiana.edu> wrote:
> 
> 
> Tried posting to google groups but got bounced, then joined the group and the message still bounced... I might help to get help...
> 
>> Begin forwarded message:
>> 
>> From: "Shepherd, Matthew" <mashephe at indiana.edu>
>> Subject: c++11 compilation error
>> Date: June 21, 2016 at 6:48:54 AM EDT
>> To: gluex-software at googlegroups.com
>> 
>> 
>> Hi all,
>> 
>> I'm having trouble with compiler flags when building a plugin.  The problem seems to be with the option:  -std="c++11" that is generated by root-config.  It seems the compiler I use supports this option, and I can't figured out why this is causing an error.  Any help/ideas?
>> 
>> Thanks!
>> 
>> [mashephe at h1 pi0g_incl]$ gcc --version
>> gcc (GCC) 4.9.2
>> Copyright (C) 2014 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions.  There is NO
>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>> 
>> [mashephe at h1 pi0g_incl]$ scons SHOWBUILD=1
>> scons: Reading SConscript files ...
>> looking for sbms_Linux.py
>> No module named sbms_Linux
>> looking for sbms_build.py
>> No module named sbms_build
>> scons: done reading SConscript files.
>> scons: Building targets ...
>> g++ -o DCustomAction_pi0g_incl.os -c -g -fPIC -Wall -std=c++11 -DHAVE_CCDB -DHAVE_EVIO -fPIC -pthread -Wno-deprecated-declarations -m64 -fPIC -I. -I/gpfs/home/m/a/mashephe/Karst/gluex/gluex_offline/sim-recon/sim-recon-recon-2016_02-ver01/src -I/gpfs/home/m/a/mashephe/Karst/gluex/gluex_offline/sim-recon/sim-recon-recon-2016_02-ver01/src/libraries -I/gpfs/home/m/a/mashephe/Karst/gluex/gluex_offline/sim-recon/sim-recon-recon-2016_02-ver01/src/libraries/include -I/N/u/mashephe/Karst/gluex/my_src/src -I/N/u/mashephe/Karst/gluex/my_src/src/libraries -I/N/u/mashephe/Karst/gluex/my_src/src/libraries/include -I/gpfs/home/m/a/mashephe/Karst/gluex/gluex_offline/sim-recon/sim-recon-recon-2016_02-ver01/build/include -Iexternal/xstream/include -I/gpfs/home/m/a/mashephe/Karst/root/include -I/gpfs/home/m/a/mashephe/Karst/gluex/gluex_offline/jana/jana_0.7.5p2/Linux_RH-x86_64-gcc4.9.2/include -I/N/u/mashephe/Karst/gluex/gluex_offline/ccdb/ccdb_1.06.01/include -I/N/u/mashephe/Karst/gluex/glu!
> ex_offline/hdds/hdds-recon-2016_02-ver01/build/src -I/N/u/mashephe/Karst/gluex/gluex_offline/xerces-c/xerces-c-3.1.2/include -I/N/u/mashephe/Karst/gluex/gluex_offline/evio/evio-4.3.1/Linux-x86_64/include DCustomAction_pi0g_incl.cc
>> cc1plus: error: unrecognized command line option "-std=c++11"
>> scons: *** [DCustomAction_pi0g_incl.os] Error 1
>> scons: building terminated because of errors.
>> 
>> ---------------------------------------------------------------------
>> Matthew Shepherd, Associate Professor
>> Department of Physics, Indiana University, Swain West 265
>> 727 East Third Street, Bloomington, IN 47405
>> 
>> Office Phone:  +1 812 856 5808
>> 
> 
> 
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