Trouble compiling on Mavericks

[Tien-Tien]

Hi Delphes team,

I have been trying to compile the latest version of Delphes on OSX 10.9.2 and run into the following error message:

>> Compiling external/tcl/tclObj.c
gcc: error: unrecognized command line option ‘-stdlib=libc++’
gcc: error: unrecognized command line option ‘-stdlib=libc++’
make: *** [tmp/external/tcl/tclObj.o] Error 1

I am running with gcc version 4.8.1 and architecture x86_64-apple-darwin12.5.0

Is this a problem with using libc++ instead of libstdc++? I am puzzled because it seems that others who run Mavericks are able to compile Delphes fine.

thanks.

[Pavel Demin]

This kind of message indicates that there is a problem with your XCode and ROOT installation.

This problem is discussed on the ROOT forum:

​​http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=17190&start=75

The solution is to

• upgrade to the latest Xcode
• install the latest command line tools
• built the latest ROOT from sources
• point all the environment variables to the correct ROOT installation directory

Recently, I've tested this solution myself.

Here is what I've done to correctly build ROOT and Delphes under Mac OS X 10.9:

• removed old MacPorts - ​https://guide.macports.org/#installing.macports.uninstalling

• installed XCode 5.1 - ​https://developer.apple.com/downloads
• installed XCode command line tools - "xcode-select --install"

• installed XQuartz 2.7.5 - ​https://xquartz.macosforge.org/landing/

• installed MacPorts 2.2.1 - ​http://www.macports.org/install.php

• installed ROOT 5.34.18 using the following commands:

  version=5.34.18
  export ROOTSYS=$HOME/root/root-${version}
  
  curl -O ftp://root.cern.ch/root/root_v${version}.source.tar.gz
  tar zxf root_v${version}.source.tar.gz
  
  cd root
  
  ./configure macosx --enable-gdml --enable-minuit2 --enable-roofit --enable-table --enable-unuran --disable-cocoa
  
  make -j 4
  make install
  

• installed Delphes using the following commands:

  # setup ROOT environment variables
  export ROOTSYS=$HOME/root/root-5.34.18
  export PATH=$ROOTSYS/bin:$PATH
  export PYTHONPATH=$ROOTSYS/lib:$PYTHONPATH
  export DYLD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH
  
  wget http://cp3.irmp.ucl.ac.be/downloads/Delphes-3.1.2.tar.gz
  tar -zxf Delphes-3.1.2.tar.gz
  
  cd Delphes-3.1.2
  make -j 4
  

[Pavel Demin]

Problem was solved by pointing the environment variables to the correct compiler installation.