On 4/04/13 11:55, Sean Lake wrote: > Hello all, > > I've run into a problem in matplotlib. I'm using the GTKAgg backend and the > matplotlib.pyplot.show() command after labeling the axes with LaTeX formatted > labels. I run into multiple copies of this error: > > libpng warning: Application built with libpng-1.2.41 but running with 1.5.10 > Traceback (most recent call last): [] > File "/sw/lib/python2.7/site-packages/matplotlib/texmanager.py", line 510, > in get_grey > X = read_png(os.path.join(self.texcache, pngfile)) > RuntimeError: _image_module::readpng: png_create_read_struct failed
I think what happens is that when you build matplotlib-py27, it picks up an include file "png.h" from libpng-1.2.41. This may be /usr/X11/include/png.h or perhaps /usr/local/include/png.h. Did you mention what version of MacOSX you are running? If it is 10.6, you may indeed have /usr/X11/include/png.h of version 1.2.41. Try grep "define PNG_LIBPNG_VER_STRING" /usr/X11/include/png.h This might be considered a bug in the matplotlib-py27 package, in that it includes /usr/X11/include before /sw/include/libpng15. I see the following relevant compiler line during the build phase of matplotlib-py27 (on 10.8.3) gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -fwrapv -O3 -Wall -I/sw/include/pygtk-2.0 -I/sw/lib/freetype219/include/freetype2 -I/sw/lib/fontconfig2/include -DNSIG=32 -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1 -I/usr/include -I/usr/X11/include -I/opt/X11/include -I/sw/lib/freetype219/include -I/sw/include -I/sw/include/libpng15 -I/usr/include -I/usr/X11/include -I/opt/X11/include -I/sw/lib/freetype219/include -I/sw/include -I. -I/sw/lib/python2.7/site-packages/numpy/core/include -I. -I/sw/include -I/sw/include/python2.7 -c src/_png.cpp -o build/temp.macosx-10.8-x86_64-2.7/src/_png.o This is bad ordering of include directories. -- Martin ------------------------------------------------------------------------------ Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html _______________________________________________ Fink-users mailing list [email protected] List archive: http://news.gmane.org/gmane.os.macosx.fink.user Subscription management: https://lists.sourceforge.net/lists/listinfo/fink-users
