#!/usr/bin/env bash
set -euo pipefail

# build_geographiclib.sh
# Build and install GeographicLib from source into /usr/local

GIT_REPO=${1:-https://github.com/GeographicLib/GeographicLib.git}
INSTALL_PREFIX=${2:-/usr/local}

echo "Cloning GeographicLib from $GIT_REPO"
TMP=$(mktemp -d)
trap 'rm -rf "$TMP"' EXIT

git clone --depth 1 "$GIT_REPO" "$TMP/GeographicLib"
mkdir -p "$TMP/GeographicLib/build"
pushd "$TMP/GeographicLib/build" >/dev/null
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$INSTALL_PREFIX"
make -j$(nproc)
sudo make install
popd >/dev/null

echo "GeographicLib installed to $INSTALL_PREFIX"