[Numpy-discussion] setup.py does not use the correct library

Robert Kern robert.kern@gmail....
Mon Sep 28 16:29:59 CDT 2009

On Mon, Sep 28, 2009 at 16:27, Peng Yu <pengyu.ut@gmail.com> wrote:
> On Mon, Sep 28, 2009 at 2:53 PM, Robert Kern <robert.kern@gmail.com> wrote:
>> On Mon, Sep 28, 2009 at 14:31, Peng Yu <pengyu.ut@gmail.com> wrote:
>>> I use the following command to build numpy-1.3.0rc2. But it seems not
>>> able to find the appropriate library files. Can somebody let me know
>>> how to make it use the correct ones?
>>> #####command
>>> export LD_LBRARY_PATH=
>>> export CPPFLAGS="-I$HOME/utility/linux/opt/Python-2.6.2/include/python2.6"
>>> export LDFLAGS="-L$HOME/utility/linux/opt/Python-2.6.2/lib -lpython2.6"
>> When compiling Fortran extensions, $LDFLAGS replaces every linker
>> flag, including things like -shared. Be sure you know what you are
>> doing when using this.
>> But you really shouldn't have to be using $LDFLAGS or $CPPFLAGS like
>> this. Python should know where its libraries and include directories
>> are.
> My python is compiled with gcc-3.4.4. I used gcc-4.1.2 which generate
> the error in my previous email. Do I have to use the same compiler to
> compile numpy?

It's a good idea, particularly with the jump from 3.4 to 4.1. However,
the source of the error you saw is that you have defined $LDFLAGS.

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco

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