Fix compilation with Qt < 4.7

Thanks to jkulesza

diff --git a/src/frontends/qt4/GuiApplication.cpp b/src/frontends/qt4/GuiApplication.cpp
index 8b613794df03bfbe45baeb78d251d41d0a3dbadd..2c166a4adb25825081ba4fa7ab1085f7ff61da7a 100644 (file)
--- a/src/frontends/qt4/GuiApplication.cpp
+++ b/src/frontends/qt4/GuiApplication.cpp
@@ -2584,8 +2584,10 @@ QFont const GuiApplication::typewriterSystemFont()
        QFont font("monospace");
 #endif
        if (!isFixedPitch(font)) {
+#if QT_VERSION >= 0x040700
                // try to enforce a real monospaced font
                font.setStyleHint(QFont::Monospace);
+#endif
                if (!isFixedPitch(font)) {
                        font.setStyleHint(QFont::TypeWriter);
                        if (!isFixedPitch(font)) font.setFamily("courier");