View source for ROOT Analyzer/Compiling

[[category:12GeV Software]]
The new Hall C analyzer, <tt>hcana</tt>, based on the Hall A analyzer is available and may be retrieved with git, see [[ROOT Analyzer/Git]].

The only prerequisite, beyond what should normally be installed on a system, is root, version 5.32 or later, but not version 6.  On the JLab CUE systems, root may be setup by typing (or putting in your login script):

  setup root

Note: Previous instructions used a version of root in <code>/group/hallc/root</code>.  As the default version of root in <code>/apps</code> is sufficient, this group disk version is no longer needed.  References to it should be removed from your <code>.login</code> and <code>.cshrc</code> files.

On your own system, install root somehow.

Before compiling, go to the directory where the code is and setup the environment for hcana with

  source setup.csh

(Or "source setup.sh" if you use bash.)   This setup script can be called in your login script.  Make sure that in addition to the Hall C code in the <tt>src</tt> directory, the Hall A code is in the <tt>podd</tt> directory.  See [[Analyzer/Git]] if it is not.

The analyzer may be compiled with either the traditional "make" utility, or with SCons, a new utility which allows additional auto-configuration abilities.  SCons is available on JLab machines.  If you do not have SCons installed on the local machine that you are compiling on, go to [http://www.scons.org SCons.org] to install the latest version.  

To use "make", simply type:

  make

To use SCons, type:

  scons

Additional SCons features :

To do the equivalent of "make clean", do:

  scons -c

To compile with debug capabilities, do:

  scons debug=1

To compile the standalone codes the are part of podd, do:

  scons standalone=1

This should build the Hall A libraries and the Hall C analyzer '''hcana'''.

See [[Analyzer/Running]] for instructions to run the analyzer.

=== Build Errors ===

==== Missing system header files ====
 Error: cannot open file "gnu/stubs.h"  /usr/include/features.h:399:
 Error: cannot open file "bits/wchar.h"  /usr/include/stdint.h:27:
 Error: cannot open file "bits/wordsize.h"  /usr/include/stdint.h:28:

* If you're on a Debian based multi-lib distribution (Ubununtu, ...), try this: <code>sudo apt-get install g++-multilib</code>