readme.md

g++-5 lib.cpp -c -o lib.o -std=c++11
nvcc test.cu -ccbin /usr/bin/g++-5 -std=c++11 -c -o test.o
g++-5 lib.o test.o -L/opt/cuda/lib64 -lcudart
./a.out

Would not prints 1 as expected.

lib.cpp

#include <glm/glm.hpp>

int g(glm::vec3 x) {
    glm::vec3 xx = x + x;
    return xx.y;
}

test.cu

#include <iostream>
#include <glm/glm.hpp>

int f(glm::vec3 x) {
    glm::vec3 xx = x + x;
    return xx.x;
}

int main() {
    glm::vec3 v(0.5f);
    std::cout << f(v) << std::endl;
    return 0;
}