Building matplotlib on os x

Hello - I am attempting to build matplotlib from source on os X, and getting an error about a shared library being the wrong architecture. The confusing thing is that the call to g++ has two settings for arch:

"g++ -arch i386 -arch ppc..."

The error I get is:
"ld: in /Developer/SDKs/MacOSX10.4u.sdk/Library/Frameworks/Python.framework/Versions/4.3.0/lib/libz.1.dylib, file is not of required architecture for architecture ppc"

Is there some way to turn off the "-arch ppc" option to g++ in setup.py? Or do I have some other problem?

Build output is included below.

Thanks,

Mike

···

============================================================================
BUILDING MATPLOTLIB
             matplotlib: 0.99.0
                 python: 2.5.4 |EPD_Py25 4.3.0| (r254:67916, May 17 2009,
                         20:07:12) [GCC 4.0.1 (Apple Computer, Inc. build
                         5370)]
               platform: darwin

REQUIRED DEPENDENCIES
                  numpy: 1.3.0
              freetype2: 9.20.3

OPTIONAL BACKEND DEPENDENCIES
                 libpng: 1.2.37
                Tkinter: Tkinter: 67737, Tk: 8.4, Tcl: 8.4
               wxPython: 2.8.7.1
                         * WxAgg extension not required for wxPython >= 2.8
                   Gtk+: no
                         * Building for Gtk+ requires pygtk; you must be able
                         * to "import gtk" in your build/install environment
        Mac OS X native: yes
                     Qt: no
                    Qt4: no
                  Cairo: no

OPTIONAL DATE/TIMEZONE DEPENDENCIES
               datetime: present, version unknown
               dateutil: 1.4
                   pytz: 2008c

OPTIONAL USETEX DEPENDENCIES
                 dvipng: no
            ghostscript: 8.54
                  latex: no

[Edit setup.cfg to suppress the above messages]

pymods ['pylab']
packages ['matplotlib', 'matplotlib.backends', 'matplotlib.projections', 'mpl_toolkits', 'mpl_toolkits.mplot3d', 'mpl_toolkits.axes_grid', 'matplotlib.sphinxext', 'matplotlib.numerix', 'matplotlib.numerix.mlab', 'matplotlib.numerix.ma', 'matplotlib.numerix.linear_algebra', 'matplotlib.numerix.random_array', 'matplotlib.numerix.fft', 'matplotlib.delaunay']
running build
running build_py
copying lib/matplotlib/mpl-data/matplotlibrc -> build/lib.macosx-10.3-fat-2.5/matplotlib/mpl-data
copying lib/matplotlib/mpl-data/matplotlib.conf -> build/lib.macosx-10.3-fat-2.5/matplotlib/mpl-data
running build_ext
building 'matplotlib.backends._tkagg' extension
creating build/temp.macosx-10.3-fat-2.5
creating build/temp.macosx-10.3-fat-2.5/src
creating build/temp.macosx-10.3-fat-2.5/CXX
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c src/agg_py_transforms.cpp -o build/temp.macosx-10.3-fat-2.5/src/agg_py_transforms.o -framework Tcl -framework Tk
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c src/_tkagg.cpp -o build/temp.macosx-10.3-fat-2.5/src/_tkagg.o -framework Tcl -framework Tk
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c CXX/cxx_extensions.cxx -o build/temp.macosx-10.3-fat-2.5/CXX/cxx_extensions.o -framework Tcl -framework Tk
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c CXX/cxxsupport.cxx -o build/temp.macosx-10.3-fat-2.5/CXX/cxxsupport.o -framework Tcl -framework Tk
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c CXX/IndirectPythonInterface.cxx -o build/temp.macosx-10.3-fat-2.5/CXX/IndirectPythonInterface.o -framework Tcl -framework Tk
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
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 -I/tmp/_py/libraries/usr/local/include -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -Isrc -Iagg24/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/lib/python2.5/site-packages/numpy-1.3.0n1-py2.5-macosx-10.3-fat.egg/numpy/core/include -I/opt/local/include/freetype2 -I/opt/local/include -I/usr/local/include -I/usr/include -I/sw/include -I. -I/Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5 -c CXX/cxxextensions.c -o build/temp.macosx-10.3-fat-2.5/CXX/cxxextensions.o -framework Tcl -framework Tk
In file included from /usr/include/math.h:26,
                  from /Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5/pyport.h:231,
                  from /Library/Frameworks/Python.framework/Versions/4.3.0/include/python2.5/Python.h:57,
                  from ./CXX/WrapPython.h:42,
                  from CXX/cxxextensions.c:38:
/usr/include/architecture/ppc/math.h:675: warning: conflicting types for built-in function ‘scalb’
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
powerpc-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tcl: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: -framework: linker input file unused because linking not done
i686-apple-darwin9-gcc-4.0.1: Tk: linker input file unused because linking not done
g++ -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g -L/usr/local/lib -L/Library/Frameworks/Python.framework/Versions/4.3.0/lib -bundle -undefined dynamic_lookup build/temp.macosx-10.3-fat-2.5/src/agg_py_transforms.o build/temp.macosx-10.3-fat-2.5/src/_tkagg.o build/temp.macosx-10.3-fat-2.5/CXX/cxx_extensions.o build/temp.macosx-10.3-fat-2.5/CXX/cxxsupport.o build/temp.macosx-10.3-fat-2.5/CXX/IndirectPythonInterface.o build/temp.macosx-10.3-fat-2.5/CXX/cxxextensions.o -L/usr/local/lib -L/usr/lib -L/sw/lib -L/opt/local/lib -L/usr/local/lib -L/usr/lib -L/sw/lib -lstdc++ -lm -lfreetype -lz -lz -lstdc++ -lm -o build/lib.macosx-10.3-fat-2.5/matplotlib/backends/_tkagg.so -framework Tcl -framework Tk
ld warning: in /Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libfreetype.dylib, file is not of required architecture
ld warning: in /Developer/SDKs/MacOSX10.4u.sdk/Library/Frameworks/Python.framework/Versions/4.3.0/lib/libz.dylib, file is not of required architecture
ld: in /Developer/SDKs/MacOSX10.4u.sdk/Library/Frameworks/Python.framework/Versions/4.3.0/lib/libz.1.dylib, file is not of required architecture for architecture ppc
collect2: ld returned 1 exit status
lipo: can't open input file: /var/folders/Jw/JwxT7AESFT0tNEoDB0a7rE+++TI/-Tmp-//ccskM2Il.out (No such file or directory)
error: command 'g++' failed with exit status 1