[Matplotlib-users] Newbie installation question

[Peter S. <paselkin@u.washington.edu>]

I've been trying to build and install matplotlib now for a few days, and 
have met with no success. I'm running OSX 10.5.4 on a MacBook Pro, 
Python 2.5.2 from MacPython, gcc 4.0.1, gfortran 4.3.0, and the latest 
version of Apple's XCode (3.1, which, if I understand correctly, has the 
necessary libpng and freetype libraries). I've got numpy 1.2.0 and scipy 
0.6.0 installed so far. I'd read that I should set the following 
environment variables prior to building:

export MACOSX_DEPLOYMENT_TARGET=10.5
export CFLAGS="-arch i386 -arch ppc -isysroot 
/Developer/SDKs/MacOSX10.5.sdk"
export LDFLAGS="-arch i386 -arch ppc 
-isyslibroot,/Developer/SDKs/MacOSX10.5.sdk"

Building starts off OK:

============================================================================
BUILDING MATPLOTLIB
             matplotlib: 0.98.1
                 python: 2.5.2 (r252:60911, Feb 22 2008, 07:57:53)  [GCC
                         4.0.1 (Apple Computer, Inc. build 5363)]
               platform: darwin

REQUIRED DEPENDENCIES
                  numpy: 1.2.0.dev5312
              freetype2: 9.16.3

OPTIONAL BACKEND DEPENDENCIES
                 libpng: 1.2.8
                Tkinter: Tkinter: 50704, Tk: 8.4, Tcl: 8.4
               wxPython: 2.8.3.0
                         * 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
                     Qt: no
                    Qt4: no
                  Cairo: no

OPTIONAL DATE/TIMEZONE DEPENDENCIES
               datetime: present, version unknown
               dateutil: matplotlib will provide
                   pytz: matplotlib will provide

OPTIONAL USETEX DEPENDENCIES
                 dvipng: 1.5
            ghostscript: 8.61
                  latex: 3.141592

EXPERIMENTAL CONFIG PACKAGE DEPENDENCIES
              configobj: matplotlib will provide
       enthought.traits: 2.6b1-mpl

[Edit setup.cfg to suppress the above messages]
============================================================================

... but eventually chokes:

g++ -arch i386 -arch ppc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g 
-bundle -undefined dynamic_lookup -arch i386 -arch ppc 
-isyslibroot,/Developer/SDKs/MacOSX10.5.sdk -arch i386 -arch ppc 
-isysroot /Developer/SDKs/MacOSX10.5.sdk 
build/temp.macosx-10.5-fat-2.5/src/ft2font.o 
build/temp.macosx-10.5-fat-2.5/src/mplutils.o 
build/temp.macosx-10.5-fat-2.5/CXX/cxx_extensions.o 
build/temp.macosx-10.5-fat-2.5/CXX/cxxsupport.o 
build/temp.macosx-10.5-fat-2.5/CXX/IndirectPythonInterface.o 
build/temp.macosx-10.5-fat-2.5/CXX/cxxextensions.o -L/usr/X11/lib 
-L/sw/lib/freetype219/lib -L/usr/local/lib -L/usr/lib -L/sw/lib 
-L/usr/X11R6/lib -lfreetype -lz -lz -lstdc++ -lm -o 
build/lib.macosx-10.5-fat-2.5/matplotlib/ft2font.so 
-Wl,-framework,CoreServices,-framework,ApplicationServices
ld warning: in 
/Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libgcc_s.10.5.dylib, 
missing required architecture i386 in file
ld: in /Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libgcc_s.1.dylib, 
missing required architecture i386 in file for architecture i386
collect2: ld returned 1 exit status
lipo: can't open input file: 
/var/folders/mX/mXK0L5vQF7elQu1RMPhkyU+++TI/-Tmp-//cc1JpFBv.out (No such 
file or directory)
error: command 'g++' failed with exit status 1

It looks to me as if ld is trying to link to the wrong SDK (10.4 instead 
of 10.5) which might not be built for Intel Macs... is that right? Is 
that actually what's causing the build to fail? I'm totally stuck, and 
would appreciate any advice.

-P



-- 
Peter A. Selkin
Assistant Professor, Environmental Geophysics
IAS/Environmental Science
University of Washington, Tacoma
1900 Commerce St., Box 358436
Tacoma, WA 98402

paselkin@u.washington.edu