CC credential-store.o
In file included from credential-store.c:1:
In file included from ./cache.h:4:
./git-compat-util.h:270:10: fatal error: 'openssl/ssl.h' file not found

include <openssl/ssl.h>

 ^

1 error generated.
make: * [credential-store.o] Error 1

如何整？