Errors due to vowpal wabbit's dependencies on boost library

Question

I'm trying real hard to install vowpal wobbit and it fails when i run the make file, throwing:

    cd library; make; cd .. 
    g++ -g -o ezexample temp2.cc -L ../vowpalwabbit -l vw -l allreduce -l boost_program_options -l z -l pthread 
    ld: library not found for -lboost_program_options collect2: ld returned 1   exit status make[1]: *** [ezexample] Error 1'

I then added the links to the boost library here by specifying -L/usr/local/lib

Now I get the following error:

    g++ -g -o ezexample temp2.cc -L/usr/local/lib ../vowpalwabbit -l vw -l  allreduce -l boost_program_options -l z -l pthread 
    ld: library not found for -lvw
    collect2: ld returned 1 exit status   
    make: *** [ezexample] Error 1

Answer 1

I happened to get everything working on OS X 10.7 as follows:

1. Make sure you have a working Boost installation. As indicated on the Getting started page, usually we only need header files, but some Boost libraries must be built separately, including the program_options library which is used to process options from command line or config file. Go into your boost folder, and then at your shell prompt:

   $ ./bootstrap.sh
   $ ./bjam
   

   This will compile and build everything. You should now have a bin.v2/ directory in your boost directory, with all built libraries for your system (static and threaded libs).

   $ ls bin.v2/libs/
   date_time       iostreams       python          serialization   test
   filesystem      math            random          signals         thread
   graph           program_options regex           system          wave
   

   More importantly, extra Boost libraries are made available in the stage/lib/ directory. For me, these are Mach-O 64-bit dynamically linked shared library x86_64.

   The include path should be your_install_dir/boost_x_xx_x, where boost_x_xx_x is the basename of your working Boost. (I personally have boost_1_46_1 in /usr/local/share/ and I symlinked it to /usr/local/share/boost to avoid having to remember version number.) The library path (for linking) should read your_install_dir/boost_x_xx_x/stage/lib. However, it might be best to symlink or copy (which is what I did) everything in usual place, i.e. /usr/local/include/boost for header files, and /usr/local/lib for libraries.

2. Edit the Makefile from the vowpal_wabbit directory, and change the include/library paths to reflect your current installation. The Makefile should look like this (first 12 lines):

   COMPILER = g++
   UNAME := $(shell uname)
   
   ifeq ($(UNAME), FreeBSD)
   LIBS = -l boost_program_options -l pthread -l z -l compat
   BOOST_INCLUDE = /usr/local/include
   BOOST_LIBRARY = /usr/local/lib
   else
   LIBS = -l boost_program_options -l pthread -l z
   BOOST_INCLUDE = /usr/local/share/boost            # change path to reflect yours
   BOOST_LIBRARY = /usr/local/share/boost/stage/lib  # idem
   endif
   

   Then, you are ready to compile vowpal_wabbit (make clean in case you already compiled it):

   $ make
   $ ./vw --version
   6.1
   $ make test
   

Answer 2

You can also install vowpal wabbit on OS X using brew:

brew install vowpal-wabbit

Or you can just install boost, and then install vw from the github repo.

brew install boost