Define COMP method function prototypes properly.

extern "C" {

#endif

typedef struct comp_ctx_st COMP_CTX;

typedef struct comp_method_st

	{

	int type;		/* NID for compression library */

	const char *name;	/* A text string to identify the library */

	int (*init)();

	void (*finish)();

	int (*compress)();

	int (*expand)();

	long (*ctrl)();

	long (*callback_ctrl)();

	int (*init)(COMP_CTX *ctx);

	void (*finish)(COMP_CTX *ctx);

	int (*compress)(COMP_CTX *ctx,

			unsigned char *out, unsigned int olen,

			unsigned char *in, unsigned int ilen);

	int (*expand)(COMP_CTX *ctx,

		      unsigned char *out, unsigned int olen,

		      unsigned char *in, unsigned int ilen);

	/* The following two do NOTHING, but are kept for backward compatibility */

	long (*ctrl)(void);

	long (*callback_ctrl)(void);

	} COMP_METHOD;

typedef struct comp_ctx_st

struct comp_ctx_st

	{

	COMP_METHOD *meth;

	unsigned long compress_in;

	unsigned long expand_out;

	CRYPTO_EX_DATA	ex_data;

	} COMP_CTX;

	};

COMP_CTX *COMP_CTX_new(COMP_METHOD *meth);