diff -Naur libreswan-3.26-orig/lib/libswan/asn1.c libreswan-3.26/lib/libswan/asn1.c
--- libreswan-3.26-orig/lib/libswan/asn1.c	2018-09-16 22:45:52.000000000 -0400
+++ libreswan-3.26/lib/libswan/asn1.c	2018-09-17 00:28:06.726985327 -0400
@@ -164,7 +164,7 @@
 		sig_val->len = len_r;
 		/* XXX: need to check len_r and len_s fits in this */
 	        sig_val->ptr = alloc_bytes(len_r * 2, "ec points");
-		DBG(DBG_PARSING, DBG_log(" sig_val  len is %ld",sig_val->len));
+		DBG(DBG_PARSING, DBG_log(" sig_val  len is %zu",sig_val->len));
 		/* copy the values of r into signature */
 		memcpy(sig_val->ptr,blob->ptr,len_r);
 
@@ -184,7 +184,7 @@
 			}
 			DBG(DBG_PARSING, DBG_log("  len_s is %d",len_s));
 			sig_val->len += len_s;
-			DBG(DBG_PARSING, DBG_log(" sig_val total len is %ld",sig_val->len));
+			DBG(DBG_PARSING, DBG_log(" sig_val total len is %zu",sig_val->len));
 			/* copy the values of r into signature */
 			memcpy(sig_val->ptr+len_r,blob->ptr,len_s);
 		}