Fix parameters to dummy function BN_ref_mod_exp().

CHANGES

@@ -5,6 +5,10 @@
 
  Changes between 0.9.1c and 0.9.2
 
+  *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
+     parameters. This was causing a warning which killed off the Win32 compile.
+     [Steve Henson]
+
   *) Remove C++ style comments from crypto/bn/bn_local.h.
      [Neil Costigan <neil.costigan@celocom.com>]
 

rsaref/rsaref.c

@@ -96,7 +96,7 @@ int RSA_ref_public_encrypt(int len, unsigned char *from,
 	unsigned char *to, RSA *rsa, int padding);
 int RSA_ref_public_decrypt(int len, unsigned char *from,
 	unsigned char *to, RSA *rsa, int padding);
-static int BN_ref_mod_exp(BIGNUM *r,BIGNUM *a,BIGNUM *p,BIGNUM *m, BN_CTX *ctx);
+static int BN_ref_mod_exp(BIGNUM *r,BIGNUM *a,BIGNUM *p,BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
 static int RSA_ref_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa);
 #else
 
@@ -144,9 +144,10 @@ RSA *rsa;
 	return(0);
 	}
 
-static int BN_ref_mod_exp(r,a,p,m,ctx)
+static int BN_ref_mod_exp(r,a,p,m,ctx,m_ctx)
 BIGNUM *r,*a,*p,*m;
 BN_CTX *ctx;
+BN_MONT_CTX *m_ctx;
 	{
 	RSAREFerr(RSAREF_F_BN_REF_MOD_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
 	return(0);