--- pgp/src/mpilib.h	2018/04/24 16:38:37	1.1.1.2
+++ pgp/src/mpilib.h	2018/04/24 16:39:19	1.1.1.3
@@ -208,14 +208,6 @@ typedef unit *unitptr;
 /* #define mp_tstminus(r) ((msunit(r) & uppermostbit)!=0) */
 #define mp_tstminus(r) ((signedunit) msunit(r) < 0)
 
-/*	MAX_BIT_PRECISION is upper limit that assembly primitives can handle.
-	It must be less than 32704 bits, or 4088 bytes.  It should be an
-	integer multiple of UNITSIZE*2.
-*/
-#define MAX_BIT_PRECISION 1152
-#define MAX_BYTE_PRECISION (MAX_BIT_PRECISION/8)
-#define MAX_UNIT_PRECISION (MAX_BIT_PRECISION/UNITSIZE)
-
 
 	/* set working precision to specified number of bits. */
 #ifdef mp_setp
@@ -317,6 +309,18 @@ void mp_setp(short nbits);
 #define SMITH_SLOP_BITS	0
 #endif /* mp_smul */
 
+/*	MAX_BIT_PRECISION is upper limit that assembly primitives can handle.
+	It must be less than 32704 bits, or 4088 bytes.  It should be an
+	integer multiple of UNITSIZE*2.
+*/
+#if (SLOP_BITS > 0)
+#define MAX_BIT_PRECISION (1152+(2*UNITSIZE))
+#else
+#define MAX_BIT_PRECISION 1152
+#endif
+#define MAX_BYTE_PRECISION (MAX_BIT_PRECISION/8)
+#define MAX_UNIT_PRECISION (MAX_BIT_PRECISION/UNITSIZE)
+
 
 /* global_precision is the unit precision last set by set_precision */
 extern short global_precision;