linking errors between boost::program_options and armadillo for cmake generated eclipse project

Question

So I had successfully been using cmake and boost in my project. I wanted to start incorporating armadillo (4.400.1)

I use enivronment modules ( http://modules.sourceforge.net/ ) on my system. I built with gcc-4.8.1. CentOS 6.4. I installed OpenBLAS (0.2.10) and armadillo from source and created environment modules.

In the past I only needed to prepend LD_LIBRARY_PATH with lib directories, but this was not sufficient for armadillo, as I was getting linking errors (unable to find lib) for the following:

g++ example1.cpp -o example1 -O2 -larmadillo 

Using the -L option works:

g++ example1.cpp -o example1 -O2 -larmadillo -L${ARMADILLO_HOME}/lib

I am already placing the armadillo lib directory in LD_LIBRARY_PATH . How do I set environment variables so the following will link without error?

g++ example1.cpp -o example1 -O2 -larmadillo

Answer 1

I had to place the armadillo lib directory in the environment variable LIBRARY_PATH not LD_LIBRARY_PATH

Doing this allowed the linking to proceed without error when issuing the command:

g++ example1.cpp -o example1 -O2 -larmadillo