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configure script does not check libpng version

#63

If libpng version is <1.4.0, linking of wig2png fails with the error message "undefined reference to png_set_longjmp_fn'"

This could be fixed by updating the autoconf script (configure.in) to check the version of libpng, or (alternatively) to test for "png_set_longjmp_fn" in the AC_SEARCH_LIBS macro, rather than the current test for "png_create_write_struct"

Reported by Ian Holmes · September 16th, 2010 @ 04:52 PM

State: new
Milestone: none
Assigned to: Ian Holmes Ian Holmes

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