It looks like a bug in agg that the stricter clang is picking up. If
you change agg24/include/agg_renderer_outline_aa.h:1368 to read:
const line_profile_aa& profile() { return *m_profile; }
does that help? (There's probably other cases like this behind it).
I don't have a complete OS-X environment right now to test with, or I'd
see what the other issues were myself.
Mike
On 02/23/2012 07:47 AM, Thomas Robitaille wrote:
> Hello,
>
> I am trying to build the latest version of matplotlib from the git repository
> (1cd07a6c) on MacOS 10.7, and regardless of whether I build using the
> make.osx file or just 'python setup.py build', the C files get compiled with
> clang, and clang raises an error on one of the files:
>
> /Developer/usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -pipe -O2
> -fwrapv -DNDEBUG -g -O3 -Wall -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API
> -DPYCXX_ISO_CPP_LIB=1
> -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include
> -I.
> -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include
> -Isrc -Iagg24/include -I.
> -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include
> -I/opt/local/include/freetype2 -I/opt/local/include -I.
> -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
> -c src/backend_agg.cpp -o build/temp.macosx-10.7-x86_64-2.7/src/backend_agg.o
> In file included from src/backend_agg.cpp:11:
> In file included from src/_backend_agg.h:34:
> agg24/include/agg_renderer_outline_aa.h:1368:45: error: binding of reference
> to type 'agg::line_profile_aa' to a value of type 'const
> agg::line_profile_aa' drops qualifiers
> line_profile_aa& profile() { return *m_profile; }
> ^~~~~~~~~~
> 1 error generated.
>
> error: command '/Developer/usr/bin/clang' failed with exit status 1
>
> If I do:
>
> CC=gcc python setup.py build
>
> then things work fine, but I just wanted to raise the point that the C files
> do not compile successfully with clang at this time (but this seems to be the
> default compiler on 10.7).
>
> Cheers,
> Tom
>
>
>
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