Compiling mono for Raspbian

Jun 16, 2015

This is my cheat sheet for compiling mono on Raspbian which come from the mono docs.

First like yoghurt, you need mono to make mono

sudo apt-get install git autoconf libtool automake build-essential mono-devel gettext 

Download and unzip the source, substituting 4.0.2.4 or whatever the latest version is:

wget http://download.mono-project.com/sources/mono/mono-4.0.2.4.tar.bz2
tar xvf 4.0.2.4.tar.gz
cd mono-4.0.2

Finally, build it

./configure --prefix=/opt/mono-4.0.2
make
sudo make install

Except then there are two versions of mono:

  1. apt-get version 3.2.8
  2. our freshly compiled build in /opt/mono-4.0.2

In order to execute code with our fresh new mono build, the docs tell us to: nano ~/mono4.sh and paste in

#!/bin/bash
MONO_PREFIX=/opt/mono-4.0.2
GNOME_PREFIX=/opt/gnome
export DYLD_FALLBACK_LIBRARY_PATH=$MONO_PREFIX/lib:$DYLD_LIBRARY_FALLBACK_PATH
export LD_LIBRARY_PATH=$MONO_PREFIX/lib:$LD_LIBRARY_PATH
export C_INCLUDE_PATH=$MONO_PREFIX/include:$GNOME_PREFIX/include
export ACLOCAL_PATH=$MONO_PREFIX/share/aclocal
export PKG_CONFIG_PATH=$MONO_PREFIX/lib/pkgconfig:$GNOME_PREFIX/lib/pkgconfig
export PATH=$MONO_PREFIX/bin:$PATH
PS1="[mono4.0.2] \w @ "

Save that and we can switch from old mono to new by executing source ~/mono4.sh. If it worked, the bash prompt should have changed and we can verify it by checking mono --version.