libc++ on 10.7 causes too many issues. See #8577 for discussion/details.
@ -3,7 +3,7 @@
<plist version="0.9">
<dict>
<key>LSMinimumSystemVersion</key>
<string>10.7.0</string>
<string>10.8.0</string>
<key>LSArchitecturePriority</key>
<array>