When trying to build the tests (make && make -C tests clean install), I get some errors, first is "screenshot.c:5:17: error: png.h: No such file or directory"
I searched for png.h, it exists in C:\cygwin\usr\include\libpng12. Why can't it be found ? Where can I set the path ?
I installed libpng, the png.h is in c:\cygwin\usr\include\libpng10 and c:\cygwin\usr\include\libpng12, but can't be found when building the pspgl test. Seems I have to set a path somewhere ?