libpng “png_set_longjmp_fn” not found

Question

I\'m using libpng from ubuntu and when I try to compile a c++ file I get

undefined reference to `png_set_longjmp_fn\'

I\'m using libpng version 1.6.8

Answer 1

Perhaps you have built with libpng-1.6.8 but are linking to an earlier version of libpng. The "png_set_longjmp_fn()" API was introduced in libpng-1.4.x. Ubuntu 13:10 currently comes with libpng-1.2.49 (see /usr/include/libpng12), which does not supply png_set_longjmp_fn().