1 PNGMAK=scripts/makefile.linux

     2 

     3 all:

     4 	cd zlib; ./configure; make

     5 	cd libpng; make -f $(PNGMAK)

     6 

     7 clean:

     8 	-cd zlib; make clean

     9 	-cd libpng; make -f $(PNGMAK) clean