diff --git a/plugins/python-build/bin/python-build b/plugins/python-build/bin/python-build
index b5aa1ec4..6ff46837 100755
--- a/plugins/python-build/bin/python-build
+++ b/plugins/python-build/bin/python-build
@@ -791,14 +791,6 @@ build_package_standard_install() {
   } >&4 2>&1
 }
 
-build_package_standard_install_with_bundled_gems() {
-  { "$MAKE" update-gems
-    "$MAKE" extract-gems
-  } >&4 2>&1
-
-  build_package_standard_install "$@"
-}
-
 # Backward Compatibility for standard function
 build_package_standard() {
   build_package_standard_build "$@"
@@ -810,13 +802,6 @@ build_package_autoconf() {
   } >&4 2>&1
 }
 
-build_package_ruby() {
-  local package_name="$1"
-
-  { "$RUBY_BIN" setup.rb
-  } >&4 2>&1
-}
-
 build_package_python() {
   local package_name="$1"
 
@@ -824,132 +809,9 @@ build_package_python() {
   } >&4 2>&1
 }
 
-build_package_ree_installer() {
-  build_package_auto_tcltk
-
-  local options=""
-  is_mac && options="--no-tcmalloc"
-
-  local option
-  for option in $RUBY_CONFIGURE_OPTS ${RUBY_CONFIGURE_OPTS_ARRAY[@]}; do
-    options="$options -c $option"
-  done
-
-  # Work around install_useful_libraries crash with --dont-install-useful-gems
-  mkdir -p "$PREFIX_PATH/lib/ruby/gems/1.8/gems"
-
-  { ./installer --auto "$PREFIX_PATH" --dont-install-useful-gems $options $CONFIGURE_OPTS
-  } >&4 2>&1
-}
-
-build_package_rbx() {
-  local package_name="$1"
-
-  { [ ! -e "Gemfile" ] || bundle --path=vendor/bundle
-    if [ -n "$RUBY_BUILD_CACHE_PATH" ]; then
-      mkdir -p vendor
-      ln -s "$RUBY_BUILD_CACHE_PATH" vendor/prebuilt
-    fi
-
-    local opt
-    local -a configure_opts
-    for opt in "${RUBY_CONFIGURE_OPTS_ARRAY[@]}"; do
-      if [[ $opt == --with-openssl-dir=* ]]; then
-        local openssl_dir="${opt#*=}"
-        configure_opts[${#configure_opts[@]}]="--with-lib-dir=${openssl_dir}/lib"
-        configure_opts[${#configure_opts[@]}]="--with-include-dir=${openssl_dir}/include"
-      else
-        configure_opts[${#configure_opts[@]}]="$opt"
-      fi
-    done
-
-    RUBYOPT="-rrubygems $RUBYOPT" ./configure --prefix="$PREFIX_PATH" $RUBY_CONFIGURE_OPTS "${configure_opts[@]}"
-    rake install
-    fix_rbx_gem_binstubs "$PREFIX_PATH"
-    fix_rbx_irb "$PREFIX_PATH"
-  } >&4 2>&1
-}
-
-build_package_mruby() {
-  local package_name="$1"
-
-  { rake
-    mkdir -p "$PREFIX_PATH"
-    cp -fR build/host/* "$PREFIX_PATH"
-    cd "$PREFIX_PATH/bin"
-    ln -fs mruby ruby
-    ln -fs mirb irb
-  } >&4 2>&1
-}
-
-build_package_maglev() {
-  build_package_copy
-
-  { cd "${PREFIX_PATH}"
-    ./install.sh
-    cd "${PREFIX_PATH}/bin"
-    echo "Creating symlink for ruby*"
-    ln -fs maglev-ruby ruby
-    echo "Creating symlink for irb*"
-    ln -fs maglev-irb irb
-  } >&4 2>&1
-  echo
-  echo "Run 'maglev start' to start up the stone before using 'ruby' or 'irb'"
-}
-
-build_package_topaz() {
-  build_package_copy
-  { cd "${PREFIX_PATH}/bin"
-    echo "Creating symlink for ruby*"
-    ln -fs topaz ruby
-  } >&4 2>&1
-}
-
-topaz_architecture() {
-  case "$(uname -s)" in
-  "Darwin") echo "osx64";;
-  "Linux") [[ "$(uname -m)" = "x86_64" ]] && echo "linux64" || echo "linux32";;
-  *)
-    echo "no nightly builds available" >&2
-    exit 1;;
-  esac
-}
-
-build_package_jruby() {
-  build_package_copy
-  cd "${PREFIX_PATH}/bin"
-  ln -fs jruby ruby
-  chmod +x ruby
-  install_jruby_launcher
-  remove_windows_files
-  fix_jruby_shebangs
-}
-
-install_jruby_launcher() {
-  cd "${PREFIX_PATH}/bin"
-  { ./ruby gem install jruby-launcher
-  } >&4 2>&1
-}
-
-fix_jruby_shebangs() {
-  for file in "${PREFIX_PATH}/bin"/*; do
-    if [ "$(head -c 20 "$file")" = "#!/usr/bin/env jruby" ]; then
-      sed -i.bak "1 s:.*:#\!${PREFIX_PATH}\/bin\/jruby:" "$file"
-      rm "$file".bak
-    fi
-  done
-}
-
-build_package_truffleruby() {
-  build_package_copy
-
-  cd "${PREFIX_PATH}"
-  ./lib/truffle/post_install_hook.sh
-}
-
 remove_windows_files() {
   cd "$PREFIX_PATH"
-  rm -f bin/*.exe bin/*.dll bin/*.bat bin/jruby.sh
+  rm -f bin/*.exe bin/*.dll bin/*.bat
 }
 
 build_package_jython() {
@@ -1183,37 +1045,10 @@ cleanup_builtin_patches() {
 }
 
 fix_directory_permissions() {
-  # Ensure installed directories are not world-writable to avoid Bundler warnings
+  # Ensure installed directories are not world-writable
   find "$PREFIX_PATH" -type d \( -perm -020 -o -perm -002 \) -exec chmod go-w {} \;
 }
 
-fix_rbx_gem_binstubs() {
-  local prefix="$1"
-  local gemdir="${prefix}/gems/bin"
-  local bindir="${prefix}/bin"
-  local file binstub
-  # Symlink Rubinius' `gems/bin/` into `bin/`
-  if [ -d "$gemdir" ] && [ ! -L "$gemdir" ]; then
-    for file in "$gemdir"/*; do
-      binstub="${bindir}/${file##*/}"
-      rm -f "$binstub"
-      { echo "#!${bindir}/ruby"
-        grep -v '^#!' "$file"
-      } > "$binstub"
-      chmod +x "$binstub"
-    done
-    rm -rf "$gemdir"
-    ln -s ../bin "$gemdir"
-  fi
-}
-
-fix_rbx_irb() {
-  local prefix="$1"
-  "${prefix}/bin/irb" --version &>/dev/null ||
-    "${prefix}/bin/gem" install rubysl-tracer -v '~> 2.0' --no-rdoc --no-ri &>/dev/null ||
-    true
-}
-
 require_java7() {
   local version="$(java -version 2>&1 | grep '\(java\|openjdk\) version' | head -1)"
   if [[ $version != *[789]* ]]; then
@@ -1682,36 +1517,6 @@ build_package_auto_tcltk() {
   fi
 }
 
-rake() {
-  if [ -e "./Gemfile" ]; then
-    bundle exec rake "$@"
-  else
-    isolated_gem_dependency "rake --version" rake -v '~> 10.1.0'
-    command rake "$@"
-  fi
-}
-
-bundle() {
-  isolated_gem_dependency "bundle --version" bundler -v '~> 1.3.5'
-  command bundle "$@"
-}
-
-isolated_gem_dependency() {
-  set +E
-  ( command $1 &>/dev/null ) || {
-    set -E
-    shift 1
-    isolated_gem_install "$@"
-  }
-  set -E
-}
-
-isolated_gem_install() {
-  export GEM_HOME="${PWD}/.gem"
-  export PATH="${GEM_HOME}/bin:${PATH}"
-  gem install "$@"
-}
-
 apply_python_patch() {
   local patchfile
   case "$1" in
@@ -2108,19 +1913,6 @@ if [ -n "$noexec" ]; then
   exit 1
 fi
 
-## Apply following work around, if gcc is not installed.
-#if [ -z "$(locate_gcc)" ]; then
-#  # Work around warnings building Ruby 2.0 on Clang 2.x:
-#  # pass -Wno-error=shorten-64-to-32 if the compiler accepts it.
-#  #
-#  # When we set CFLAGS, Ruby won't apply its default flags, though. Since clang
-#  # builds 1.9.x and 2.x only, where -O3 is default, we can safely set that flag.
-#  # Ensure it's the first flag since later flags take precedence.
-#  if "${CC:-cc}" -x c /dev/null -E -Wno-error=shorten-64-to-32 &>/dev/null; then
-#    RUBY_CFLAGS="-O3 -Wno-error=shorten-64-to-32 $RUBY_CFLAGS"
-#  fi
-#fi
-
 if [ -z "$MAKE" ]; then
   if [ "FreeBSD" = "$(uname -s)" ]; then
     if [ "$(echo $1 | sed 's/-.*$//')" = "jruby" ]; then