Fixes libjpegturbo dependency for ubuntu

ci/docker/install/ubuntu_core.sh

@@ -39,13 +39,19 @@ apt-get install -y \
     liblapack-dev \
     libopenblas-dev \
     libopencv-dev \
+    libturbojpeg \
     libzmq3-dev \
     ninja-build \
     software-properties-common \
     sudo \
     unzip \
     wget
 
+# Use libturbojpeg package as it is correctly compiled with -fPIC flag
+# /~https://github.com/HaxeFoundation/hashlink/issues/147 
+ln -s /usr/lib/x86_64-linux-gnu/libturbojpeg.so.0.1.0 /usr/lib/x86_64-linux-gnu/libturbojpeg.so
+
+
 # Note: we specify an exact cmake version to work around a cmake 3.10 CUDA 10 issue.
 # Reference: /~https://github.com/clab/dynet/issues/1457
 mkdir /opt/cmake && cd /opt/cmake