Please see http://trac.sagemath.org/sage_trac/ticket/11696
There have already been much work with libpng troubles, especially on Mac OS X so it would be nice to find out exactly why your config is failing. On Tuesday, July 9, 2013 7:25:26 PM UTC+2, Paul Mercat wrote: > > Problem solved ! The problem is simply a incorrect name for the library > libpng. > I've uninstall the libraries libpng of my computer. Then the compilation > of sage-5.10 from the beggining stop with the first error I gave : > > ld: library not found for -lpng > > The problem simply comes from the fact that ld don't see the library > libpng, because his name is incorrect. > If we replace -lpng by -lpng12 in the line > > g++ -bundle -undefined dynamic_lookup -L/Applications/sage-5.10/local/lib > build/temp.macosx-10.8-x86_64-2.7/src/_png.o > build/temp.macosx-10.8-x86_64-2.7/src/mplutils.o > build/temp.macosx-10.8-x86_64-2.7/CXX/cxx_extensions.o > build/temp.macosx-10.8-x86_64-2.7/CXX/cxxsupport.o > build/temp.macosx-10.8-x86_64-2.7/CXX/IndirectPythonInterface.o > build/temp.macosx-10.8-x86_64-2.7/CXX/cxxextensions.o > -L/Applications/sage-5.10/local/lib -lpng -lz -lstdc++ -lm -o > build/lib.macosx-10.8-x86_64-2.7/matplotlib/_png.so > > it compiles. > So to correct the problem I've simply make a alias of the library libpng > in $SAGEROOT/local/lib/ with the same name but with 12 removed. > If I restart the compilation (after the command export > SAGE_KEEP_BUILT_SPKGS=yes), it compiles. > And now all the tests pass ! > > I don't know how to modify the file > $SAGEROOT/spkg/standard/libpng-1.2.35.p5.spkg to finaly correct the problem > in futures distributions, but it might be easy for some people... > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/groups/opt_out.
