Make build line on #104 more flexible.

Adding ninja to the installed apps so that biodynamo will build with all available threads. More flexible and generalisable.

Singularity

@@ -1,9 +1,13 @@
 Bootstrap:docker
 From:ubuntu:18.04
+
 %environment
+
 %post -c /bin/bash
+
   export DEBIAN_FRONTEND=noninteractive 
-  export TZ=Etc/UTC
+  export TZ=Europe/Berlin
+
   apt-get -y update &&
   apt-get -y install python &&
   apt-get -y install python3 &&
@@ -23,9 +27,7 @@ From:ubuntu:18.04
   apt-get -y install aptitude &&
   aptitude -y install libreadline-dev &&
   apt-get -y install libssl-dev &&
-  # Add -y to the following line
   apt-get -y install libsqlite3-dev &&
-  # Add -y to the following line
   apt-get -y install apt-utils &&
   apt-get -y install openmpi-bin &&
   apt-get -y install libopenmpi-dev &&
@@ -62,44 +64,58 @@ From:ubuntu:18.04
   apt-get -y install zlib1g-dev &&
   apt-get -y install sudo &&
   apt-get -y install software-properties-common
+
+  apt-get -y install locales locales-all
+  dpkg-reconfigure locales
+  locale-gen
 
   wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh
   bash Miniconda3-latest-Linux-x86_64.sh -b -f -p /miniconda3/
   rm Miniconda3-latest-Linux-x86_64.sh
+
   export PATH="/miniconda3/bin:$PATH"
   conda install -y -c conda-forge pip numpy 
   conda update -y --all
   apt -y install git
   apt -y install curl
-  sudo rm -rf ~/.pyenv
+  sudo  rm -rf ~/.pyenv
   curl https://pyenv.run | bash
   export PATH="$HOME/.pyenv/bin:$PATH"
+  eval "$(pyenv init --path)"
+  eval "$(pyenv virtualenv-init -)"
   eval "$(pyenv init -)"
-  export PYENV_ROOT=/opt/pyenv
+
+  export PYENV_ROOT="/opt/pyenv"
   export PATH="/opt/pyenv/bin:$PATH" 
   curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
-  ## Remove -y from following line
   PYTHON_CONFIGURE_OPTS="--enable-shared" pyenv install 3.9.1
-  export PATH=/opt/pyenv/versions/3.9.1/bin:$PATH
-  export PATH=/opt/pyenv/versions/3.9.1/bin/:$PATH
+  export PATH="/opt/pyenv/versions/3.9.1/bin:$PATH"
+  export PATH="/opt/pyenv/versions/3.9.1/bin/:$PATH"
+
   wget https://bootstrap.pypa.io/get-pip.py
   python3 get-pip.py
   python3 -m pip install -U pip
   python3 -m pip install --upgrade pip
   python3 -m pip install numpy
   apt-get install -y python3-pip
   apt-get install -y freeglut3-dev valgrind
+
   pip install cmake --upgrade
   pyenv global 3.9.1
 
   apt-get -y dist-upgrade   
+  sudo apt-get -y install ninja-build
+
   git clone https://github.com/BioDynaMo/biodynamo.git
   cd biodynamo 
   export SILENT_INSTALL=1
   ./prerequisites.sh all
-  mkdir build 
-  cd build 
-  cmake ..  
-  make -j8
-  ## cd build
+
+  cmake -G Ninja \
+  -Dparaview=OFF \
+  -DCMAKE_BUILD_TYPE=Release \
+  -B build
+
+  cmake --build build --parallel -config Release
+
 %runscript