Fix missing prototype warnings then fix different prototype warnings ;-)

crypto/bn/asm/x86_64-gcc.c

+#include "../bn_lcl.h"
 #if !(defined(__GNUC__) && __GNUC__>=2)
 # include "../bn_asm.c"	/* kind of dirty hack for Sun Studio */
 #else
@@ -60,6 +61,9 @@
 #define BN_ULONG unsigned long
 #endif
 
+#undef mul
+#undef mul_add
+
 /*
  * "m"(a), "+m"(r)	is the way to favor DirectPath -code;
  * "g"(0)		let the compiler to decide where does it
@@ -101,7 +105,7 @@
 		: "a"(a)		\
 		: "cc");
 
-BN_ULONG bn_mul_add_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w)
+BN_ULONG bn_mul_add_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w)
 	{
 	BN_ULONG c1=0;
 
@@ -125,7 +129,7 @@ BN_ULONG bn_mul_add_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w)
 	return(c1);
 	} 
 
-BN_ULONG bn_mul_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w)
+BN_ULONG bn_mul_words(BN_ULONG *rp, const BN_ULONG *ap, int num, BN_ULONG w)
 	{
 	BN_ULONG c1=0;
 
@@ -148,7 +152,7 @@ BN_ULONG bn_mul_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w)
 	return(c1);
 	} 
 
-void bn_sqr_words(BN_ULONG *r, BN_ULONG *a, int n)
+void bn_sqr_words(BN_ULONG *r, const BN_ULONG *a, int n)
         {
 	if (n <= 0) return;
 
@@ -179,7 +183,7 @@ BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d)
 	return ret;
 }
 
-BN_ULONG bn_add_words (BN_ULONG *rp, BN_ULONG *ap, BN_ULONG *bp,int n)
+BN_ULONG bn_add_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n)
 { BN_ULONG ret=0,i=0;
 
 	if (n <= 0) return 0;
@@ -202,7 +206,7 @@ BN_ULONG bn_add_words (BN_ULONG *rp, BN_ULONG *ap, BN_ULONG *bp,int n)
 }
 
 #ifndef SIMICS
-BN_ULONG bn_sub_words (BN_ULONG *rp, BN_ULONG *ap, BN_ULONG *bp,int n)
+BN_ULONG bn_sub_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int n)
 { BN_ULONG ret=0,i=0;
 
 	if (n <= 0) return 0;
@@ -489,7 +493,7 @@ void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
 	r[7]=c2;
 	}
 
-void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a)
+void bn_sqr_comba8(BN_ULONG *r, const BN_ULONG *a)
 	{
 	BN_ULONG t1,t2;
 	BN_ULONG c1,c2,c3;
@@ -565,7 +569,7 @@ void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a)
 	r[15]=c1;
 	}
 
-void bn_sqr_comba4(BN_ULONG *r, BN_ULONG *a)
+void bn_sqr_comba4(BN_ULONG *r, const BN_ULONG *a)
 	{
 	BN_ULONG t1,t2;
 	BN_ULONG c1,c2,c3;