#ifdef DC_SHA1_EXTERNAL
#include <sha1dc/sha1.h>
#elif defined(DC_SHA1_SUBMODULE)
#include "sha1collisiondetection/lib/sha1.h"
#else
#include "sha1dc/sha1.h"
#endif
#ifdef DC_SHA1_EXTERNAL
void git_SHA1DCInit(SHA1_CTX *);
#else
#define git_SHA1DCInit …
#endif
void git_SHA1DCFinal(unsigned char [20], SHA1_CTX *);
void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *data, unsigned long len);
#define platform_SHA_IS_SHA1DC …
#ifndef platform_SHA_CTX
#define platform_SHA_CTX …
#define platform_SHA1_Init …
#define platform_SHA1_Update …
#define platform_SHA1_Final …
#endif