Ubuntu – “/usr/bin/ld: cannot find -lcudart”

I am newbie to Ubuntu and using Ubuntu 14.04 64-bit. I want to make a project that uses cuda and opencv I got the following error when running cmake . && make

Linking CXX executable ground_estimation
/usr/bin/ld: cannot find -lcudart
collect2: error: ld returned 1 exit status
make[2]: *** [ground_estimation] Error 1
make[1]: *** [CMakeFiles/ground_estimation.dir/all] Error 2
make: *** [all] Error 2

This is the output of ld -lcudart --verbose

attempt to open /usr/x86_64-linux-gnu/lib64/libcudart.so failed
attempt to open /usr/x86_64-linux-gnu/lib64/libcudart.a failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libcudart.so failed
attempt to open //usr/local/lib/x86_64-linux-gnu/libcudart.a failed
attempt to open //usr/local/lib64/libcudart.so failed
attempt to open //usr/local/lib64/libcudart.a failed
attempt to open //lib/x86_64-linux-gnu/libcudart.so failed
attempt to open //lib/x86_64-linux-gnu/libcudart.a failed
attempt to open //lib64/libcudart.so failed
attempt to open //lib64/libcudart.a failed
attempt to open //usr/lib/x86_64-linux-gnu/libcudart.so failed
attempt to open //usr/lib/x86_64-linux-gnu/libcudart.a failed
attempt to open //usr/lib64/libcudart.so failed
attempt to open //usr/lib64/libcudart.a failed
attempt to open //usr/local/lib/libcudart.so failed
attempt to open //usr/local/lib/libcudart.a failed
attempt to open //lib/libcudart.so failed
attempt to open //lib/libcudart.a failed
attempt to open //usr/lib/libcudart.so failed
attempt to open //usr/lib/libcudart.a failed

libcudart exist in /usr/local/cuda/lib64 and I also added to Library Path:

echo $LD_LIBRARY_PATH
/usr/lib/nvidia-current:/usr/local/cuda/lib64:/usr/local/cuda/lib:

This is the output of ls /usr/local/cuda/lib64:

libcublas_device.a   libcufftw.so.6.0.37    libnppi.so.6.0
libcublas.so         libcuinj64.so          libnppi.so.6.0.37
libcublas.so.6.0     libcuinj64.so.6.0      libnpps.so
libcublas.so.6.0.37  libcuinj64.so.6.0.37   libnpps.so.6.0
libcudadevrt.a       libcurand.so           libnpps.so.6.0.37
libcudart.so         libcurand.so.6.0       libnvblas.so
libcudart.so.6.0     libcurand.so.6.0.37    libnvblas.so.6.0
libcudart.so.6.0.37  libcusparse.so         libnvblas.so.6.0.37
libcudart_static.a   libcusparse.so.6.0     libnvToolsExt.so
libcufft.so          libcusparse.so.6.0.37  libnvToolsExt.so.1
libcufft.so.6.0      libnppc.so             libnvToolsExt.so.1.0.0
libcufft.so.6.0.37   libnppc.so.6.0         libOpenCL.so
libcufftw.so         libnppc.so.6.0.37      libOpenCL.so.1
libcufftw.so.6.0     libnppi.so

What should I do that ld search in /usr/local/cuda/lib64 path to find libcudart?