Thread: Re: [Matplotlib-users] Help building (problems with pkg-config and libpng)

I have a working system now. Here's what I did to fix it.
1. Installed libpng from source
2. Installed freetype2 from source
3. Installed pkg-config from source
4. Installed a new version of the Xcode developer tools for the mac.
During the build I still saw a few 'incompatible architecture' errors flash
by, but I guess they weren't serious enough for the build to stop.
On Tue, Jun 30, 2009 at 9:51 AM, Rick Muller <rpm...@gm...> wrote:
>
>
> On Tue, Jun 30, 2009 at 9:14 AM, Michael Droettboom <md...@st...>wrote:
>
>> What does
>>
>> pkg-config libpng --modversion --libs --cflags
>>
>> give?
>>
>> The pkg-config error may actually be a red herring, since matplotlib will
>> look in /usr/local even if pkg-config fails, and it obviously found the
>> headers or it wouldn't have gotten to the linking stage. As the author of
>> the pkg-config support I would like to rule that out as the problem though.
>>
>> I think it's more likely that the libpng isn't being built correctly to
>> match the kind of binary matplotlib is building. I'm afraid that's where I
>> hit the end of my knowledge as a non-Mac user, but I'm sure another Mac
>> developer will chime in.
>>
>
> Okay, I just installed pkg-config, and it now finds the proper libpng...
>
> libpng: 1.2.37
>
> However, I still get exactly the same compile problem:
>
> g++ -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g
> -bundle -u
> ndefined dynamic_lookup build/temp.macosx-10.3-fat-2.6/src/ft2font.o
> build/temp.
> macosx-10.3-fat-2.6/src/mplutils.o
> build/temp.macosx-10.3-fat-2.6/CXX/cxx_extens
> ions.o build/temp.macosx-10.3-fat-2.6/CXX/cxxsupport.o
> build/temp.macosx-10.3-fa
> t-2.6/CXX/IndirectPythonInterface.o
> build/temp.macosx-10.3-fat-2.6/CXX/cxxextens
> ions.o -L/usr/local/lib -L/usr/lib -L/usr/X11R6/lib -lfreetype -lz -lstdc++
> -lm
> -o build/lib.macosx-10.3-fat-2.6/matplotlib/ft2font.so
> ld: in /Developer/SDKs/MacOSX10.4u.sdk/usr/local/lib/libPng.dylib, file is
> not o
> f required architecture for architecture ppc
> collect2: ld returned 1 exit status
> lipo: can't open input file:
> /var/folders/tu/tuLdYMqlEm00c5EVXrMQ+U+++TQ/-Tmp-//
> ccU5pNn1.out (No such file or directory)
> error: command 'g++' failed with exit status 1
>
> --
> Rick Muller
> rpm...@gm...
>
-- 
Rick Muller
rpm...@gm...