1*a67afe4dSAndroid Build Coastguard WorkerThis demonstrates the use of PNG_USER_CONFIG and pngusr.h 2*a67afe4dSAndroid Build Coastguard Worker 3*a67afe4dSAndroid Build Coastguard WorkerThe makefile builds a minimal write-only encoder with embedded libpng 4*a67afe4dSAndroid Build Coastguard Workerand zlib. 5*a67afe4dSAndroid Build Coastguard Worker 6*a67afe4dSAndroid Build Coastguard WorkerSpecify the location of the zlib source (1.2.1 or later) as ZLIBSRC 7*a67afe4dSAndroid Build Coastguard Workeron the make command line. 8*a67afe4dSAndroid Build Coastguard Worker 9*a67afe4dSAndroid Build Coastguard WorkerIf you prefer to use the shared libraries, go to contrib/pngminus 10*a67afe4dSAndroid Build Coastguard Workerand build the pnm2png application there. 11