update base version of ruby-build (v20130518)

plugins/python-build/bin/pyenv-install

@@ -148,6 +148,9 @@ if [ -z "${PYTHON_BUILD_CACHE_PATH}" ] && [ -d "${PYENV_ROOT}/cache" ]; then
   export PYTHON_BUILD_CACHE_PATH="${PYENV_ROOT}/cache"
 fi
 
+# Default PYENV_VERSION to the globally-specified Python version.
+export PYENV_VERSION="$(pyenv global 2>/dev/null || true)"
+
 
 # Execute `before_install` hooks.
 for hook in "${before_hooks[@]}"; do eval "$hook"; done

plugins/python-build/bin/python-build

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-PYTHON_BUILD_VERSION="20121023"
+PYTHON_BUILD_VERSION="20130518"
 
 set -E
 exec 3<&2 # preserve original stderr at fd 3
@@ -61,6 +61,10 @@ capitalize() {
   printf "%s" "$1" | tr a-z A-Z
 }
 
+sanitize() {
+  printf "%s" "$1" | sed "s/[^A-Za-z0-9.-]/_/g; s/__*/_/g"
+}
+
 build_failed() {
   { echo
     echo "BUILD FAILED"
@@ -330,6 +334,20 @@ fetch_git() {
   echo "Cloning ${git_url}..." >&2
 
   if type git &>/dev/null; then
+    if [ -n "$PYTHON_BUILD_CACHE_PATH" ]; then
+      pushd "$PYTHON_BUILD_CACHE_PATH" >&4
+      local clone_name="$(sanitize "$git_url")"
+      if [ -e "${clone_name}" ]; then
+        { cd "${clone_name}"
+          git fetch --force "$git_url" "+${git_ref}:${git_ref}"
+        } >&4 2>&1
+      else
+        git clone --bare --branch "$git_ref" "$git_url" "${clone_name}" >&4 2>&1
+      fi
+      git_url="$PYTHON_BUILD_CACHE_PATH/${clone_name}"
+      popd >&4
+    fi
+
     git clone --depth 1 --branch "$git_ref" "$git_url" "${package_name}" >&4 2>&1
   else
     echo "error: please install \`git\` and try again" >&2
@@ -476,8 +494,13 @@ build_package_standard() {
   local PACKAGE_MAKE_OPTS_ARRAY="${package_var_name}_MAKE_OPTS_ARRAY[@]"
   local PACKAGE_CFLAGS="${package_var_name}_CFLAGS"
 
-  { CFLAGS="$CFLAGS ${!PACKAGE_CFLAGS}" ${!PACKAGE_CONFIGURE:-./configure} --prefix="${!PACKAGE_PREFIX_PATH:-$PREFIX_PATH}" $CONFIGURE_OPTS ${!PACKAGE_CONFIGURE_OPTS} "${!PACKAGE_CONFIGURE_OPTS_ARRAY}"
-    "$MAKE" $MAKE_OPTS ${!PACKAGE_MAKE_OPTS} "${!PACKAGE_MAKE_OPTS_ARRAY}"
+  ( if [ "${CFLAGS+defined}" ] || [ "${!PACKAGE_CFLAGS+defined}" ]; then
+      export CFLAGS="$CFLAGS ${!PACKAGE_CFLAGS}"
+    fi
+    ${!PACKAGE_CONFIGURE:-./configure} --prefix="${!PACKAGE_PREFIX_PATH:-$PREFIX_PATH}" $CONFIGURE_OPTS ${!PACKAGE_CONFIGURE_OPTS} "${!PACKAGE_CONFIGURE_OPTS_ARRAY}"
+  ) >&4 2>&1
+
+  { "$MAKE" $MAKE_OPTS ${!PACKAGE_MAKE_OPTS} "${!PACKAGE_MAKE_OPTS_ARRAY}"
     "$MAKE" install
   } >&4 2>&1