install python-dev to build ldd

Dockerfile

@@ -7,7 +7,7 @@ RUN apt-get clean
 RUN apt-get -qq update
 
 # Install required packets from ubuntu repository
-RUN apt-get install -y apt-transport-https curl wget vim git binutils autoconf automake make cmake qemu-kvm qemu-system-x86 nasm gcc g++ build-essential libtool bsdmainutils libssl-dev python pkg-config lld swig
+RUN apt-get install -y apt-transport-https curl wget vim git binutils autoconf automake make cmake qemu-kvm qemu-system-x86 nasm gcc g++ build-essential libtool bsdmainutils libssl-dev python pkg-config lld swig python-dev
 
 # add path to hermitcore packets
 #RUN echo "deb [trusted=yes] https://dl.bintray.com/hermitcore/ubuntu bionic main" | tee -a /etc/apt/sources.list