安装最新版本的Python时遇到问题：出错？

Question

I have Python 2.7 on my Fedora VM and I want to upgrade to Python 3.3.2. I did this:

wget http://python.org/ftp/python/3.3.2/Python-3.3.2.tar.bz2
tar xf Python-3.3.2.tar.bz2
cd Python-3.3.2
./configure --prefix=/usr/local

And then tried

make

Only to get this error:

Objects/abstract.c:2281:20: error: variable 'countva' is uninitialized when
      used here [-Werror,-Wuninitialized]
        Py_VA_COPY(countva, va);
        ~~~~~~~~~~~^~~~~~~~~~~~
Include/pyport.h:875:37: note: expanded from:
#define Py_VA_COPY(x, y) Py_MEMCPY((x), (y), sizeof(va_list))
                                    ^
Objects/abstract.c:2278:20: note: initialize the variable 'countva' to
      silence this warning
    va_list countva;
                   ^
                    = NULL
1 error generated.
make: *** [Objects/abstract.o] Error 1

...what? How do I fix this? There shouldn't be something wrong with the Python installation file, should there?

Answer 1

There is nothing wrong with the Python archive, it must be your environment.

I reproduced your exact steps on my system and it runs on my system. I think the -Werror switch is to blame. It will turn warnings into errors. What your compiler actually encounters is merely a warning.

Can you type in the same terminal echo $CFLAGS and post the output? On my system, this command will produce an empty line. Maybe you have some CFLAGS set in your ~/.bashrc ? Or maybe you do source a file in your ~/.bashrc which sets CFLAGS ?