0.28 doesn't compile

[Dominik Kurz]

Hi, I just wanted to let you know that the version 0.28 doesn't compile
using the installation instructions in the INSTALL file, but 0.27 does.
You may want to remove or update 0.28


g++  -Wall -W -O2 -c -o png_io.o png_io.cc
png_io.cc:27:10: fatal error: png.h: No such file or directory
   27 | #include <png.h>
      |          ^~~~~~~
compilation terminated.
make: *** [Makefile:70: png_io.o] Error 1


Specifically, this step fails.

Regards,

Dominik Kurz.