* new build flags
CC credential-store.o
In file included from cache.h:4:0,
from credential-store.c:1:
git-compat-util.h:280:25: fatal error: openssl/ssl.h: 没有那个文件或目录
compilation terminated.
Makefile:1984: recipe for target 'credential-store.o' failed
make: *** [credential-store.o] Error 1