diff --git a/lib/asn1/check-gen.c b/lib/asn1/check-gen.c
index 2b5403437..85274a696 100644
--- a/lib/asn1/check-gen.c
+++ b/lib/asn1/check-gen.c
@@ -815,12 +815,13 @@ check_tag_length64(void)
 	    }
 	    if (td[i].expected_len != sz) {
 		printf("wrong expected size for tag test %d\n", i);
-		printf("sz = %d\n", sz);
+		printf("sz = %lu\n", (unsigned long)sz);
 		failed = 1;
 	    }
 	    if (values[i] != u) {
 		printf("wrong value for tag test %d\n", i);
-		printf("Expected value: %lld\nActual value: %lld\n", values[i], u);
+		printf("Expected value: %llu\nActual value: %llu\n",
+		       (unsigned long long)values[i], (unsigned long long)u);
 		failed = 1;
 	    }
 	}
@@ -874,12 +875,13 @@ check_tag_length64s(void)
 	    }
 	    if (td[i].expected_len != sz) {
 		printf("wrong expected size for tag test %d\n", i);
-		printf("sz = %d\n", sz);
+		printf("sz = %lu\n", (unsigned long)sz);
 		failed = 1;
 	    }
 	    if (values[i] != u) {
 		printf("wrong value for tag test %d\n", i);
-		printf("Expected value: %lld\nActual value: %lld\n", values[i], u);
+		printf("Expected value: %lld\nActual value: %lld\n",
+		       (long long)values[i], (long long)u);
 		failed = 1;
 	    }
 	}
diff --git a/lib/asn1/gen.c b/lib/asn1/gen.c
index 21ced6fc6..16b908603 100644
--- a/lib/asn1/gen.c
+++ b/lib/asn1/gen.c
@@ -306,7 +306,7 @@ gen_assign_defval(const char *var, struct value *val)
 	fprintf(codefile, "if((%s = strdup(\"%s\")) == NULL)\nreturn ENOMEM;\n", var, val->u.stringvalue);
 	break;
     case integervalue:
-	fprintf(codefile, "%s = %lld;\n", var, val->u.integervalue);
+	fprintf(codefile, "%s = %lld;\n", var, (long long)val->u.integervalue);
 	break;
     case booleanvalue:
 	if(val->u.booleanvalue)
@@ -327,7 +327,8 @@ gen_compare_defval(const char *var, struct value *val)
 	fprintf(codefile, "if(strcmp(%s, \"%s\") != 0)\n", var, val->u.stringvalue);
 	break;
     case integervalue:
-	fprintf(codefile, "if(%s != %lld)\n", var, val->u.integervalue);
+	fprintf(codefile, "if(%s != %lld)\n", var,
+		(long long)val->u.integervalue);
 	break;
     case booleanvalue:
 	if(val->u.booleanvalue)
@@ -400,8 +401,8 @@ generate_constant (const Symbol *s)
     case booleanvalue:
 	break;
     case integervalue:
-	fprintf (headerfile, "enum { %s = %lld };\n\n",
-		 s->gen_name, s->value->u.integervalue);
+	fprintf(headerfile, "enum { %s = %lld };\n\n", s->gen_name,
+		(long long)s->value->u.integervalue);
 	break;
     case nullvalue:
 	break;
@@ -542,9 +543,10 @@ define_asn1 (int level, Type *t)
     case TInteger:
 	if(t->members == NULL) {
             fprintf (headerfile, "INTEGER");
-	    if (t->range)
-		fprintf (headerfile, " (%lld..%lld)",
-			 t->range->min, t->range->max);
+	    if (t->range) {
+		fprintf(headerfile, " (%lld..%lld)",
+			(long long)t->range->min, (long long)t->range->max);
+	    }
         } else {
 	    Member *m;
             fprintf (headerfile, "INTEGER {\n");
@@ -734,9 +736,10 @@ define_type (int level, const char *name, const char *basename, Type *t, int typ
 	    fprintf (headerfile, "int %s;\n", name);
 	} else if (t->range->min >= 0 && t->range->max <= UINT_MAX) {
 	    fprintf (headerfile, "unsigned int %s;\n", name);
-	} else
+	} else {
 	    errx(1, "%s: unsupported range %lld -> %lld",
-		 name, t->range->min, t->range->max);
+		 name, (long long)t->range->min, (long long)t->range->max);
+	}
 	break;
     case TBoolean:
 	space(level);
diff --git a/lib/asn1/gen_decode.c b/lib/asn1/gen_decode.c
index 03890b041..db7696883 100644
--- a/lib/asn1/gen_decode.c
+++ b/lib/asn1/gen_decode.c
@@ -192,19 +192,19 @@ range_check(const char *name,
 		 "if ((%s)->%s > %lld) {\n"
 		 "e = ASN1_MAX_CONSTRAINT; %s;\n"
 		 "}\n",
-		 name, length, r->max, forwstr);
+		 name, length, (long long)r->max, forwstr);
     if (r->min - 1 == r->max || r->min < r->max)
 	fprintf (codefile,
 		 "if ((%s)->%s < %lld) {\n"
 		 "e = ASN1_MIN_CONSTRAINT; %s;\n"
 		 "}\n",
-		 name, length, r->min, forwstr);
+		 name, length, (long long)r->min, forwstr);
     if (r->max == r->min)
 	fprintf (codefile,
 		 "if ((%s)->%s != %lld) {\n"
 		 "e = ASN1_EXACT_CONSTRAINT; %s;\n"
 		 "}\n",
-		 name, length, r->min, forwstr);
+		 name, length, (long long)r->min, forwstr);
 }
 
 static int
@@ -262,7 +262,7 @@ decode_type (const char *name, const Type *t, int optional,
 	    decode_primitive ("unsigned", name, forwstr);
 	} else
 	    errx(1, "%s: unsupported range %lld -> %lld",
-		 name, t->range->min, t->range->max);
+		 name, (long long)t->range->min, (long long)t->range->max);
 	break;
     case TBoolean:
       decode_primitive ("boolean", name, forwstr);
diff --git a/lib/asn1/gen_encode.c b/lib/asn1/gen_encode.c
index 1b9afc922..b8afceaee 100644
--- a/lib/asn1/gen_encode.c
+++ b/lib/asn1/gen_encode.c
@@ -139,7 +139,7 @@ encode_type (const char *name, const Type *t, const char *tmpstr)
 	    encode_primitive ("unsigned", name);
 	} else
 	    errx(1, "%s: unsupported range %lld -> %lld",
-		 name, t->range->min, t->range->max);
+		 name, (long long)t->range->min, (long long)t->range->max);
 	constructed = 0;
 	break;
     case TBoolean:
diff --git a/lib/asn1/gen_length.c b/lib/asn1/gen_length.c
index b815f1a8d..883919d26 100644
--- a/lib/asn1/gen_length.c
+++ b/lib/asn1/gen_length.c
@@ -90,7 +90,7 @@ length_type (const char *name, const Type *t,
 	    length_primitive ("unsigned", name, variable);
 	} else
 	    errx(1, "%s: unsupported range %lld -> %lld",
-		 name, t->range->min, t->range->max);
+		 name, (long long)t->range->min, (long long)t->range->max);
 
 	break;
     case TBoolean:
diff --git a/lib/asn1/gen_template.c b/lib/asn1/gen_template.c
index e810504d8..cdd180c00 100644
--- a/lib/asn1/gen_template.c
+++ b/lib/asn1/gen_template.c
@@ -502,7 +502,7 @@ template_members(struct templatehead *temp, const char *basetype, const char *na
 	    itype = "UNSIGNED";
 	else
 	    errx(1, "%s: unsupported range %lld -> %lld",
-		 name, t->range->min, t->range->max);
+		 name, (long long)t->range->min, (long long)t->range->max);
 
 	add_line(temp, "{ A1_PARSE_T(A1T_%s), %s, NULL }", itype, poffset);
 	break;