Merge remote-tracking branch 'origin/5.8' into dev

Conflicts:
	.qmake.conf

Change-Id: I519c785ed64bdb0669d884a11d45be6532e629ec

src/plugins/imageformats/tga/qtgafile.cpp

@@ -144,9 +144,7 @@ QTgaFile::QTgaFile(QIODevice *device)
         mErrorMessage = tr("Seek file/device for image read failed");
         return;
     }
-    int bytes = device->read((char*)mHeader, HeaderSize);
-    if (bytes != HeaderSize)
-    {
+    if (device->read(reinterpret_cast<char*>(mHeader), HeaderSize) != HeaderSize) {
         mErrorMessage = tr("Image header read failed");
         return;
     }
@@ -170,9 +168,7 @@ QTgaFile::QTgaFile(QIODevice *device)
         return;
     }
     char footer[FooterSize];
-    bytes = mDevice->read((char*)footer, FooterSize);
-    if (bytes != FooterSize)
-    {
+    if (mDevice->read(reinterpret_cast<char*>(footer), FooterSize) != FooterSize) {
         mErrorMessage = tr("Could not read footer");
     }
     if (qstrncmp(&footer[SignatureOffset], "TRUEVISION-XFILE", 16) != 0)

src/plugins/imageformats/wbmp/qwbmphandler.cpp

@@ -244,7 +244,7 @@ bool WBMPReader::canRead(QIODevice *device)
         WBMPHeader hdr;
         if (readWBMPHeader(device, &hdr)) {
             if ((hdr.type == 0) && (hdr.format == 0)) {
-                qint64 imageSize = hdr.height * ((hdr.width + 7) / 8);
+                const qint64 imageSize = hdr.height * ((qint64(hdr.width) + 7) / 8);
                 qint64 available = device->bytesAvailable();
                 device->seek(oldPos);
                 return (imageSize == available);