Try to fix the test script and find the old pygpu version

.jenkins/jenkins_test2.sh

@@ -38,7 +38,7 @@ echo "===== Testing gpuarray backend"
 
 GPUARRAY_CONFIG="Release"
 DEVICE=cuda0
-LIBDIR=~/tmp/local
+LIBDIR=${WORKSPACE}/local
 
 # Make fresh clones of libgpuarray (with no history since we don't need it)
 rm -rf libgpuarray
@@ -56,8 +56,6 @@ mkdir libgpuarray/build
 (cd libgpuarray/build && make install)
 
 # Export paths
-export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$LIBDIR/lib64/
-export LIBRARY_PATH=$LIBRARY_PATH:$LIBDIR/lib64/
 export CPATH=$CPATH:$LIBDIR/include
 export LIBRARY_PATH=$LIBRARY_PATH:$LIBDIR/lib
 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$LIBDIR/lib
@@ -70,6 +68,8 @@ export PYTHONPATH=${PYTHONPATH}:$LIBDIR/lib/python
 # Then install
 (cd libgpuarray && python setup.py install --home=$LIBDIR)
 
+python -c 'import pygpu; print(pygpu.__file__)'
+
 # Testing theano (the gpuarray parts)
 THEANO_GPUARRAY_TESTS="theano/gpuarray/tests \
                        theano/sandbox/tests/test_rng_mrg.py:test_consistency_GPUA_serial \