1 This demonstrates the use of PNG_USER_CONFIG and pngusr.h 2 3 The makefile builds a minimal read-only progressive decoder with 4 embedded libpng, zlib and your system's X library. 5 6 Specify the location of the zlib source (1.2.1 or later) as ZLIBSRC 7 on the make command line. 8 9 Edit makefile if required, to find your X library and include files, 10 then 11 12 make ZLIBSRC=directory 13 14 If you prefer to use the shared libraries, go to contrib/gregbook 15 and build the rpng2-x application there. 16