glfw "undefined reference to glfwInit"

I had the following code (abbreviated for illustration purposes) building fine, except for the fact that it was unable to find glu.h:

#include <GL/glfw.h>

using namespace std;

int main()
{
int running = GL_TRUE;

if ( !glfwInit() )
{
exit(EXIT_FAILURE);
}

if (!glfwOpenWindow(900, 750, 0, 0, 0, 0, 0, 0, GLFW_WINDOW))
{
glfwTerminate();
exit(EXIT_FAILURE);
}

while (running)
{
// Game code
}

return 0;
}

After some digging, I was able to install the xorg devel package that set up glu.h. However, now I get glfw errors like 'undefined reference to glfwInit' and also for glfwOpenWindow and glfwTerminate.

The odd thing is that those methods are available in code completion lists for both the #include and the method calls. I've tried reinstalling the glfw and glfw-devel packages to no avail.

Any ideas?