diff --git a/eo/contrib/irace/build_fastga.sh b/eo/contrib/irace/build_fastga.sh
new file mode 100755
index 000000000..abaac4a20
--- /dev/null
+++ b/eo/contrib/irace/build_fastga.sh
@@ -0,0 +1,80 @@
+#!/bin/sh
+
+########################################################################
+# This is an example of how to deal with complex builds,
+# for instance on clusters with compilers provided as side modules.
+########################################################################
+
+# Run this script in a separate dir, e.g.
+# mkdir -p code ; cd code ; ../build_fastga.sh
+
+# exit when any command fails
+set -e
+
+# We need recent clang and cmake
+module load LLVM/clang-llvm-10.0
+module load cmake/3.18
+
+# We are going to use a specific compiler, different from the system's one.
+# Path toward the compiler:
+C="/opt/dev/Compilers/LLVM/10.0.1/bin"
+# Path toward the include for the std lib:
+I="/opt/dev/Compilers/LLVM/10.0.1/include/c++/v1/"
+# Path toward the compiled std lib:
+L="/opt/dev/Compilers/LLVM/10.0.1/lib"
+
+# As we use clang, we use its std lib (instead of gcc's "libstdc++")
+S="libc++"
+
+# Gather all those into a set of flags:
+flags="-I${I} -stdlib=${S} -L${L}"
+
+# Current dir, for further reference.
+here=$(pwd)
+
+# Compiler selection
+export CC=${C}/clang
+export CXX=${C}/clang++
+
+# If the dir already exists
+if cd IOHexperimenter ; then
+    # Just update the code
+    git pull
+else
+    # Clone the repo
+    git clone --branch feat+EAF --single-branch --recurse-submodules https://github.com/jdreo/IOHexperimenter.git
+    cd IOHexperimenter
+fi
+# Clean build from scratch
+rm -rf release
+mkdir -p release
+cd release
+cmake -DCMAKE_CXX_FLAGS="${flags}" -D CMAKE_BUILD_TYPE=Release -D BUILD_TESTS=OFF -D BUILD_EXAMPLE=OFF ..
+make -j
+# Get back to the root dir
+cd ${here}
+
+
+if cd paradiseo ; then
+    git pull
+else
+    git clone --branch feat+num_foundry --single-branch --recurse-submodules https://github.com/jdreo/paradiseo.git
+    cd paradiseo
+    touch LICENSE
+fi
+rm -rf release
+mkdir -p release
+cd release
+cmake -DCMAKE_CXX_FLAGS="${flags}" -D CMAKE_BUILD_TYPE=Release ..
+make -j
+cd ${here}
+
+
+cd paradiseo/eo/contrib/irace
+rm -rf release
+mkdir -p release
+cd release
+cmake -DCMAKE_CXX_FLAGS="${flags}" -D CMAKE_BUILD_TYPE=Release -D IOH_ROOT=${here}/IOHexperimenter/ -D PARADISEO_ROOT=${here}/paradiseo/ -D PARADISEO_BUILD=${here}/paradiseo/release/ ..
+make -j
+cd ${here}
+