5 -CFLAGS=-O3 -Wall -Wextra -Wno-unknown-pragmas
7 -LIBS=-lm -lpthread -lz
9 +CFLAGS?=-O3 -Wall -Wextra -Wno-unknown-pragmas
11 +LIBS?=-lm -lpthread -lz
12 ZOPFLI=zopfli/src/zopfli/
13 ZOP=deflate.o blocksplitter.o tree.o lz77.o cache.o hash.o util.o squeeze.o katajainen.o