From 63c00d99899971c3ed9a3ee01c69b8b3a194e171 Mon Sep 17 00:00:00 2001
From: "Yamashita, Yuu" <peek824545201@gmail.com>
Date: Wed, 9 Aug 2017 08:10:36 +0000
Subject: [PATCH] Avoid choosing virtualenv when building PyPy from source

---
 plugins/python-build/bin/pyenv-install | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/plugins/python-build/bin/pyenv-install b/plugins/python-build/bin/pyenv-install
index 6705d4bc..844b47ec 100755
--- a/plugins/python-build/bin/pyenv-install
+++ b/plugins/python-build/bin/pyenv-install
@@ -207,8 +207,12 @@ if [ -z "${PYENV_BOOTSTRAP_VERSION}" ]; then
     else
       for version in $(pyenv-versions --bare | sort -r); do
         if [[ "${version}" == "2.7"* ]]; then
-          PYENV_BOOTSTRAP_VERSION="$version"
-          break
+          if [ -f "$(pyenv-prefix "${version}")/bin/activate" ]; then
+            : # avoid choosing virtualenv since it may not have some necessary modules (e.g. cffi, pycparser)
+          else
+            PYENV_BOOTSTRAP_VERSION="$version"
+            break
+          fi
         fi
       done
     fi