DEPS="zlib-1.2.11" PK_DIRNAME="libpng-1.6.26" PK_ARCHIVE="$PK_DIRNAME.tar.gz" PK_URL="http://download.sourceforge.net/libpng/$PK_ARCHIVE" source $INCLUDE_SCRIPT_DIR/inc-pkall-default.sh pkhook_prebuild() { pkhelper_patch . libpng.pc.in }