From fc4c5794d230a37c46d24273b31b0e055f880b5c Mon Sep 17 00:00:00 2001
From: "Juergen E. Fischer" <jef@norbit.de>
Date: Mon, 1 Oct 2018 11:19:39 +0200
Subject: [PATCH] fix build on Qt <5.8

---
 src/app/mesh/qgsmeshrendereractivedatasetwidget.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/app/mesh/qgsmeshrendereractivedatasetwidget.cpp b/src/app/mesh/qgsmeshrendereractivedatasetwidget.cpp
index 0f8202556f5..b6a65e3bb21 100644
--- a/src/app/mesh/qgsmeshrendereractivedatasetwidget.cpp
+++ b/src/app/mesh/qgsmeshrendereractivedatasetwidget.cpp
@@ -251,8 +251,14 @@ void QgsMeshRendererActiveDatasetWidget::updateMetadata()
 QString QgsMeshRendererActiveDatasetWidget::timeToString( double val )
 {
   // time val should be in hours
+#if QT_VERSION >= 0x050800
   qint64 seconds = static_cast<qint64>( val * 3600.0 );
   return QDateTime::fromSecsSinceEpoch( seconds ).toString( "hh:mm:ss" );
+#else
+  QDateTime t;
+  t.setTime_t( static_cast<uint>( val * 3600.0 ) );
+  return t.toString( "hh:mm:ss" );
+#endif
 }
 
 QString QgsMeshRendererActiveDatasetWidget::metadata( QgsMeshDatasetIndex datasetIndex )