From 51021131d779f26a54c5583ee1bab4c08376c6ef Mon Sep 17 00:00:00 2001
From: Jonas Kvinge <jonas@jkvinge.net>
Date: Tue, 23 Oct 2018 20:17:29 +0200
Subject: [PATCH] Allow compile on Qt 5.5.1 or above

---
 CMakeLists.txt                    | 2 +-
 src/widgets/stretchheaderview.cpp | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5c5d02583..c037f3992 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -122,7 +122,7 @@ if(WIN32)
 endif(WIN32)
 
 # QT
-set(QT_MIN_VERSION 5.6.0)
+set(QT_MIN_VERSION 5.5.1)
 find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Concurrent Widgets Network Sql OpenGL Xml)
 if(X11_FOUND)
   find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS X11Extras)
diff --git a/src/widgets/stretchheaderview.cpp b/src/widgets/stretchheaderview.cpp
index 488c3a32a..dbb26387a 100644
--- a/src/widgets/stretchheaderview.cpp
+++ b/src/widgets/stretchheaderview.cpp
@@ -246,7 +246,11 @@ void StretchHeaderView::SetColumnWidth(int logical, ColumnWidthType width) {
 bool StretchHeaderView::RestoreState(const QByteArray& data) {
 
   QDataStream s(data);
+#if QT_VERSION < QT_VERSION_CHECK(5, 6, 0)
+  s.setVersion(QDataStream::Qt_5_5);
+#else
   s.setVersion(QDataStream::Qt_5_6);
+#endif
 
   int magic_number = 0;
   s >> magic_number;
@@ -310,7 +314,11 @@ QByteArray StretchHeaderView::SaveState() const {
     visual_indices << logicalIndex(i);
   }
 
+#if QT_VERSION < QT_VERSION_CHECK(5, 6, 0)
+  s.setVersion(QDataStream::Qt_5_5);
+#else
   s.setVersion(QDataStream::Qt_5_6);
+#endif
   s << kMagicNumber;
 
   s << stretch_enabled_;