1 This demonstrates the use of PNG_USER_CONFIG and pngusr.h 2 3 To build a minimal write-only decoder with embedded libpng and zlib, run 4 5 gather.sh # to collect needed files from pngminus, libpng, and zlib 6 make 7 8 If you prefer to use the shared libraries, go to contrib/pngminus 9 and build the pnm2png application there. 10