ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng12/libpng-1.2.51.tar.xz appears to lack the problem.
I've attached the minimal diff against Trusty png.h to solve the problem.
ftp://ftp. simplesystems. org/pub/ libpng/ png/src/ libpng12/ libpng- 1.2.51. tar.xz appears to lack the problem.
I've attached the minimal diff against Trusty png.h to solve the problem.