QPA plugins: Fix const correctness in old style casts

Found with GCC's -Wcast-qual.

Change-Id: Ia0aac2f09e9245339951ffff13c946899b4ba15b
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/src/plugins/platforms/xcb/qxcbclipboard.cpp b/src/plugins/platforms/xcb/qxcbclipboard.cpp
index d4f1c6ae48..2c0a7a11cc 100644
--- a/src/plugins/platforms/xcb/qxcbclipboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbclipboard.cpp
@@ -97,7 +97,7 @@ protected:
             that->format_atoms = m_clipboard->getDataInFormat(modeAtom, m_clipboard->atom(QXcbAtom::TARGETS));
 
             if (format_atoms.size() > 0) {
-                xcb_atom_t *targets = (xcb_atom_t *) format_atoms.data();
+                const xcb_atom_t *targets = (const xcb_atom_t *) format_atoms.data();
                 int size = format_atoms.size() / sizeof(xcb_atom_t);
 
                 for (int i = 0; i < size; ++i) {
@@ -128,7 +128,7 @@ protected:
         (void)formats(); // trigger update of format list
 
         QVector<xcb_atom_t> atoms;
-        xcb_atom_t *targets = (xcb_atom_t *) format_atoms.data();
+        const xcb_atom_t *targets = (const xcb_atom_t *) format_atoms.data();
         int size = format_atoms.size() / sizeof(xcb_atom_t);
         atoms.reserve(size);
         for (int i = 0; i < size; ++i)
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp
index 78ced43af8..08108f1e20 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -703,7 +703,7 @@ Q_XCB_EXPORT QDebug operator<<(QDebug debug, const QXcbScreen *screen)
 {
     const QDebugStateSaver saver(debug);
     debug.nospace();
-    debug << "QXcbScreen(" << (void *)screen;
+    debug << "QXcbScreen(" << (const void *)screen;
     if (screen) {
         debug << fixed << qSetRealNumberPrecision(1);
         debug << ", name=" << screen->name();
diff --git a/src/plugins/platforms/xcb/qxcbsessionmanager.cpp b/src/plugins/platforms/xcb/qxcbsessionmanager.cpp
index 33e67a14b1..328b72234a 100644
--- a/src/plugins/platforms/xcb/qxcbsessionmanager.cpp
+++ b/src/plugins/platforms/xcb/qxcbsessionmanager.cpp
@@ -125,7 +125,7 @@ static void sm_setProperty(const QString &name, const QString &value)
     QByteArray v = value.toUtf8();
     SmPropValue prop;
     prop.length = v.length();
-    prop.value = (SmPointer) v.constData();
+    prop.value = (SmPointer) const_cast<char *>(v.constData());
     sm_setProperty(name.toLatin1().data(), SmARRAY8, 1, &prop);
 }