From 9c34be2427a483d3bf5f115eac28dec2716461f2 Mon Sep 17 00:00:00 2001
From: DaMichel <mw.pub@welter-4d.de>
Date: Sun, 7 Aug 2016 09:59:32 +0200
Subject: Fix trivial build errors on linux. Also support Qt 5.5.

---
 gui/main.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'gui')

diff --git a/gui/main.cpp b/gui/main.cpp
index e708dc9d..c07a65ac 100644
--- a/gui/main.cpp
+++ b/gui/main.cpp
@@ -116,7 +116,9 @@ int main(int argc, char** argv)
     QCoreApplication::addLibraryPath(".");
 #endif
 
+#if QT_VERSION >= 0x050600 // flag introduced in QT 5.6. It is non-essential so might as well allow compilation on older systems.
     QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#endif
     QApplication::setAttribute(Qt::AA_X11InitThreads, true);
     QApplication app(argc, argv);
 
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