I am not sure if Tk provides its own libpng or it relies on system-wide-installed libpng. If the case is the latter, then:

It could be that since apple likes to use its own outdated/modified libraries, it uses its own libpng too which it placed somewhere where the linker finds it first and links with it during Tk compilation which crashes your program. You could perhaps find out what libpng is linked against Tk and where its location is. Perhaps with strace mytkapp? Alternatively observe during the configure stage of the PNG component of Tk, the location of the found libpng.

Your next step would be to install your own libpng and then mess with the configure of the Makefile of the PNG component of Tk so that it is this one which gets linked instead of the system-wide one. You will want to link statically unless you want to mess with LD_LIBRARY_PATH / DYLD_LIBRARY_PATH (not recommended).

In reply to Re^9: Perl Tk on a Mac by bliako
in thread Perl Tk on a Mac by choroba

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