redis make: *** No rule to make target `/include/ruby.h', needed by `zlib.o'. Stop.

make: *** No rule to make target `/include/ruby.h', needed by `zlib.o'. Stop. 

vim /tools/ruby-2.5.1/ext/zlib/Makefile

#zlib.o: $(top_srcdir)/include/ruby.h #把这一行替换成下面一行

zlib.o: ../../include/ruby.h