Problem buliding rc2 on OS X 10.3.9/Python2.5

Robert Kern robert.kern at
Sat Oct 14 11:32:47 CDT 2006

Jay Parlar wrote:
> In the process of finally switching over to Python 2.5, and am trying
> to build numpy. Unfortunately, it dies during the build:

> C compiler: gcc -arch ppc -arch i386 -isysroot
> /Developer/SDKs/MacOSX10.4u.sdk -fno-strict-aliasing -Wno-long-double
> -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -O3
> compile options:
> '-I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
> -Inumpy/core/src -Inumpy/core/include
> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5
> -c'
> gcc: _configtest.c
> gcc: cannot specify -o with -c or -S and multiple compilations
> gcc: cannot specify -o with -c or -S and multiple compilations
> failure.

This is the problem. Are you sure that you are using the correct version of gcc 
for making Universal binaries on 10.3.9? If so, then we are not passing the 
correct flags to it. Unfortunately, I think that the Universal stuff is going to 
make our lives quite complicated.

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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