For what it's worth, the standalone agg 2.4 library compiles just fine
on my system -- this problem seems to be some sort of matplotlib / agg
interaction.
Zach
On Mar 9, 2008, at 11:35 PM, Zachary Pincus wrote:
> Hello,
>
> I just tried to compile the SVN head of matplotlib (r4994) from source
> on OS X 10.5.2 (with source builds of python 2.5.2 and the SVN head of
> numpy), and ran into an "internal compiler error" in the agg code.
> (pkgconfig 0.23 and wxPython 2.8.7.1 also present and accounted for.)
>
> Here's the compile line and error:
>> building 'matplotlib.backends._backend_agg' extension
>> gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-
>> madd -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-
>> prototypes -I/Library/Frameworks/Python.framework/Versions/2.5/lib/
>> python2.5/site-packages/numpy/core/include -I/usr/X11/include/
>> libpng12 -I/usr/local/include -I/usr/include -I/usr/X11R6/include -
>> I. -I/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/
>> site-packages/numpy/core/include -Isrc -Iagg24/include -I. -I/usr/
>> X11/include/freetype2 -I/usr/X11/include -I/usr/local/include -I/usr/
>> include -I/usr/X11R6/include -I. -I/Library/Frameworks/
>> Python.framework/Versions/2.5/include/python2.5 -c src/_image.cpp -o
>> build/temp.macosx-10.4-i386-2.5/src/_image.o
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid
>> for C/ObjC but not for C++
>> src/_image.cpp: In member function ‘Py::Object
>> _image_module::from_images(const Py::Tuple&)’:
>> src/_image.cpp:842: error: insn does not satisfy its constraints:
>> (insn 2573 1070 2574 126 agg24/include/agg_color_rgba.h:268 (set
>> (mem:QI (plus:SI (reg/f:SI 6 bp)
>> (const_int -280 [0xfffffffffffffee8])) [0 SR.2969+0
>> S1 A8])
>> (reg:QI 5 di)) 56 {*movqi_1} (nil)
>> (nil))
>> src/_image.cpp:842: internal compiler error: in
>> reload_cse_simplify_operands, at postreload.c:391
>> Please submit a full bug report, with preprocessed source if
>> appropriate.
>> See <URL:http://developer.apple.com/bugreporter> for instructions.
>
> This seems to be an agg and OS X error; it's cropped up here:
> http://trac.osgeo.org/mapserver/ticket/2368
> and John Hunter reported it on the agg list here:
> http://article.gmane.org/gmane.comp.graphics.agg/3963
>
> Unfortunately, the error appears to either not have been fixed by the
> 10.5.1 update, as suggested in the email thread cited above, or the
> error re-appeared in 10.5.2.
>
> Changing the optimization flag from -O3 to -Os and compiling
> _image.cpp manually (along with copying src/_image.cpp to src/
> image.cpp and compiling that manually in the same way) allowed me to
> finish building matplotlib, but clearly an optimized agg image library
> is pretty important... (-O2 didn't work...)
>
> Anyone have any idea at all about this error? Or is just turning off -
> O3 for this file the best thing to do until Apple fixes the compiler
> bug? Does anyone who knows more about agg than I want to try to reduce
> this to a test case?
>
>
> Zach Pincus
>
> Postdoctoral Fellow
> Molecular, Cellular, and Developmental Biology
> Yale University
>
>
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