From: Mathias Gibbens <gibmat@debian.org>
Subject: Fix test failures on 32bit systems
diff --git a/ifaddr_test.go b/ifaddr_test.go
index 45a0cc7..2464eed 100644
--- a/ifaddr_test.go
+++ b/ifaddr_test.go
@@ -196,7 +196,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv4Addr("127.0.0.1/8"),
 			},
 			operation: "address",
-			value:     fmt.Sprintf("+%d", 0xff00ff03),
+			value:     fmt.Sprintf("+%d", int64(0xff00ff03)),
 			expected:  "126.0.255.4/8",
 		},
 		{
@@ -205,7 +205,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv4Addr("127.0.0.1/8"),
 			},
 			operation: "address",
-			value:     fmt.Sprintf("-%d", 0xff00ff04),
+			value:     fmt.Sprintf("-%d", int64(0xff00ff04)),
 			expected:  "127.255.0.253/8",
 		},
 		{
@@ -269,7 +269,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv4Addr("127.0.0.1/8"),
 			},
 			operation: "network",
-			value:     fmt.Sprintf("+%d", 0xff00ff03),
+			value:     fmt.Sprintf("+%d", int64(0xff00ff03)),
 			expected:  "127.0.255.3/8",
 		},
 		{
@@ -279,7 +279,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv4Addr("127.0.0.1/8"),
 			},
 			operation: "network",
-			value:     fmt.Sprintf("-%d", 0xff00ff04),
+			value:     fmt.Sprintf("-%d", int64(0xff00ff04)),
 			expected:  "127.255.0.252/8",
 		},
 		{
@@ -307,7 +307,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv6Addr("fe80::1/104"),
 			},
 			operation: "network",
-			value:     fmt.Sprintf("+%d", 0xff00ff03),
+			value:     fmt.Sprintf("+%d", int64(0xff00ff03)),
 			expected:  "fe80::ff03/104",
 		},
 		{
@@ -317,7 +317,7 @@ func TestIfAddrMath(t *testing.T) {
 				SockAddr: sockaddr.MustIPv6Addr("fe80::1/104"),
 			},
 			operation: "network",
-			value:     fmt.Sprintf("-%d", 0xff00ff04),
+			value:     fmt.Sprintf("-%d", int64(0xff00ff04)),
 			expected:  "fe80::ff:fc/104",
 		},
 		{
diff --git a/rfc_test.go b/rfc_test.go
index af669a4..a51e547 100644
--- a/rfc_test.go
+++ b/rfc_test.go
@@ -45,7 +45,7 @@ func TestIsRFC(t *testing.T) {
 		{
 			name:   "invalid rfc",
 			sa:     sockaddr.MustIPv4Addr("192.168.0.0/16"),
-			rfcNum: 999999999999,
+			rfcNum: 999999,
 			result: false,
 		},
 	}