Initial commit install script for patching trunk

Author: Damian Rouson

developer-scripts/patched-trunk-install.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+if [[ ! -f src/libcaf.h ]]; then
+  echo "Run this script at the top level of the OpenCoarrays source tree."
+  exit 1
+fi
+
+: "${1?'Missing absolute path to patch file'}"
+
+# Absolute path to patch file
+patch_file="${1}"
+
+# Exit on error: 
+set -o errexit
+
+# Exit on use of unset variable: 
+set -o nounset
+
+# Return the highest exit code in a chain of pipes:
+set -o pipefail
+
+# Install the GCC trunk to default location: prerequisites/installations/gcc/trunk (takes several hours):
+./install.sh --package gcc --install-branch trunk --yes-to-all 
+
+# Patch the GCC trunk and rebuild (should be much faster than the initial build):
+echo "Patching the GCC source."
+pushd prerequistes/downloads/trunk 
+  patch -p0 < "${patch_file}"
+popd
+
+echo "Rebuilding the patched GCC source."
+./install.sh --package gcc --install-branch trunk --yes-to-all 
+
+# Ensure the just-installed libraries are used when compiling
+export LD_LIBRARY_PATH="${PWD}/prerequisites/installations/gcc/trunk/lib64":"${LD_LIBRARY_PATH}"
+
+# Build MPICH with the patched compiler and install MPICH in the default location: prerequisites/installations/mpich/3.1.4:
+./install.sh --package mpich --yes-to-all \
+  --with-fortran "${PWD}/prerequisites/installations/gcc/trunk/bin/gfortran" \
+  --with-c "${PWD}/prerequisites/installations/gcc/trunk/bin/gcc" \
+  --with-C "${PWD}/prerequisites/installations/gcc/trunk/bin/g++" 
+
+# Build OpenCoarrays with the patched compiler and install OpenCoarrays in the default location: prerequisites/installations:
+./install.sh ---yes-to-all \
+  --with-fortran "${PWD}/prerequisites/installations/gcc/trunk/bin/gfortran" \
+  --with-c "${PWD}/prerequisites/installations/gcc/trunk/bin/gcc" \
+  --with-C "${PWD}/prerequisites/installations/gcc/trunk/bin/g++" 
+  --with-mpi "${PWD}/prerequisites/installations/mpich/3.1.4/"