fix relative paths in qcustomplot patch

Author: lkeegan

qcustomplot.diff

@@ -1,7 +1,7 @@
-diff --git a/qcustomplot.cpp b/qcustomplot.cpp
+diff --git a/qcustomplot/qcustomplot.cpp b/qcustomplot/qcustomplot.cpp
 index 72b5bfb..f9c4a96 100644
---- a/qcustomplot.cpp
-+++ b/qcustomplot.cpp
+--- a/qcustomplot/qcustomplot.cpp
++++ b/qcustomplot/qcustomplot.cpp
 @@ -1584,7 +1584,7 @@ bool QCPLayerable::moveToLayer(QCPLayer *layer, bool prepend)
    if (mLayer)
      mLayer->addChild(this, prepend);
@@ -654,10 +654,10 @@ index 72b5bfb..f9c4a96 100644
    }
  }
 
-diff --git a/qcustomplot.h b/qcustomplot.h
+diff --git a/qcustomplot/qcustomplot.h b/qcustomplot/qcustomplot.h
 index 02ed8fb..b9d6c4c 100644
---- a/qcustomplot.h
-+++ b/qcustomplot.h
+--- a/qcustomplot/qcustomplot.h
++++ b/qcustomplot/qcustomplot.h
 @@ -781,7 +781,7 @@ public:
    // non-property methods:
    bool realVisibility() const;

qcustomplot/CMakeLists.txt

@@ -1,6 +1,6 @@
 # cmake file for https://www.qcustomplot.com/
 
-cmake_minimum_required(VERSION 3.16...3.31)
+cmake_minimum_required(VERSION 3.16...4.3)
 
 project(
   QCustomPlot