message: Remove any existing archive before building.
  This avoids failures when archives for multiple versions end up
  coexisting in the build directories.
diff: @@ -39,6 +39,7 @@ if [[ ! -z $BUILD ]]; then
  mkdir -p "${folder_name}"
  (
  cd "${folder_name}" || exit 1
  + rm -f realm-core-*-devel.tar.gz
  cmake -D CMAKE_TOOLCHAIN_FILE="../tools/cmake/${p}.toolchain.cmake" \
  -D CMAKE_BUILD_TYPE="${prefix}${bt}" \
  -D REALM_VERSION="$(git describe)" \
  