From 0a49f76c0a9a53fa54258fc1a0907a242f1448b3 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Sun, 13 May 2018 22:28:02 +0800
Subject: [PATCH] Detect endianness at compile time

---
 src/base/net/private/geoipdatabase.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/base/net/private/geoipdatabase.cpp b/src/base/net/private/geoipdatabase.cpp
index b0480c98c..2dc906c37 100644
--- a/src/base/net/private/geoipdatabase.cpp
+++ b/src/base/net/private/geoipdatabase.cpp
@@ -38,8 +38,6 @@
 
 namespace
 {
-    const quint32 __ENDIAN_TEST__ = 0x00000001;
-    const bool __IS_LITTLE_ENDIAN__ = (reinterpret_cast<const uchar *>(&__ENDIAN_TEST__)[0] == 0x01);
     const qint32 MAX_FILE_SIZE = 67108864; // 64MB
     const char DB_TYPE[] = "GeoLite2-Country";
     const quint32 MAX_METADATA_SIZE = 131072; // 128KB
@@ -448,8 +446,12 @@ bool GeoIPDatabase::readDataFieldDescriptor(quint32 &offset, DataFieldDescriptor
 
 void GeoIPDatabase::fromBigEndian(uchar *buf, quint32 len) const
 {
-    if (__IS_LITTLE_ENDIAN__)
-        std::reverse(buf, buf + len);
+#if (Q_BYTE_ORDER == Q_LITTLE_ENDIAN)
+    std::reverse(buf, buf + len);
+#else
+    Q_UNUSED(buf);
+    Q_UNUSED(len);
+#endif
 }
 
 QVariant GeoIPDatabase::readMapValue(quint32 &offset, quint32 count) const