Fix build with Qt 5.11

lbeltrame · lbeltrame · commit db8c79211502 · 2018-03-06T06:58:25.000+01:00
Some includes need to be explicitly set now
diff --git a/src/assistants/solve/solveassistant.cpp b/src/assistants/solve/solveassistant.cpp
@@ -22,7 +22,7 @@
 
 #include <QAction>
 #include <QIcon>
-
+#include <QStyle>
 #include <QDialog>
 #include <KActionCollection>
 #include <KConfigGroup>
