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lac  committed 27092ba

warn people not to use 4.2 gcc

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File pypy/doc/getting-started-python.rst

 .. _`windows document`: windows.html
 
 You can translate the whole of PyPy's Python interpreter to low level C code,
-or `CLI code`_.
+or `CLI code`_.  If you intend to build using gcc, check to make sure that
+the version you have is not 4.2 or you will run into `this bug`_.
+
+.. _`this bug`: https://bugs.launchpad.net/ubuntu/+source/gcc-4.2/+bug/187391
 
 1. First `download a pre-built PyPy`_ for your architecture which you will
    use to translate your Python interpreter.  It is, of course, possible to