[mlpack-svn] [MLPACK] #357: error building mlpack

[MLPACK Trac]

#357: error building mlpack
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  Reporter:  ftrovato  |        Owner:  rcurtin 
      Type:  defect    |       Status:  accepted
  Priority:  major     |    Milestone:          
 Component:  mlpack    |   Resolution:          
  Keywords:            |     Blocking:          
Blocked By:            |  
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Changes (by rcurtin):

  * owner:  => rcurtin
  * status:  new => accepted


Comment:

 Hi Fabio,

 I'm glad that you were able to solve the first issue.  I was in the
 process of setting up an Ubuntu 14.04 system to reproduce the issue.  It
 looked to me like you only had gfortran installed for i386, but you needed
 it for x86_64.  Either way, it seems like reinstalling the library fixed
 the issue.

 To solve your second issue, when you compile, add the `-lmlpack` option,
 and if that still fails, tell the linker the directory that libmlpack.so
 is located in with `-L/path/to/mlpack/build/lib/` (or whatever that path
 may be for you, possibly just `~/mlpack-1.0.9/build/lib/`.  When you run
 the program, as you've correctly pointed out, you need to set
 `LD_LIBRARY_PATH`.

 Did libmlpack.so install into /usr/local/lib/?  If so, you should be able
 to just set `LD_LIBRARY_PATH=/usr/local/lib/` and that should work too.

 In response to your question about the libxml2 includes, we currently
 don't have a better solution to that.  Some systems place libxml2 headers
 in `/usr/include/` and some in `/usr/include/libxml2/`; Ubuntu is the
 latter, so manually adding `/usr/include/libxml2/` to the list of include
 directories is necessary.  In the future I am hoping to solve this issue
 by wrapping all necessary libxml2 symbols into libmlpack.so directly, but
 this hasn't happened yet.  Sorry for the inconvenience.

 Thanks,

 Ryan

-- 
Ticket URL: <http://trac.research.cc.gatech.edu/fastlab/ticket/357#comment:2>
MLPACK <www.fast-lab.org>
MLPACK is an intuitive, fast, and scalable C++ machine learning library developed at Georgia Tech.