[CMake] Builds on macOS.

Applications/DataExplorer/NetCdfDialog/CMakeLists.txt

 add_library(NetCdfDialogLib NetCdfConfigureDialog.cpp NetCdfConfigureDialog.h)
-target_link_libraries(NetCdfDialogLib PUBLIC Qt5::Widgets PRIVATE MathLib)
+target_link_libraries(NetCdfDialogLib PUBLIC Qt5::Widgets PRIVATE MathLib vtknetcdfcpp)
 set_property(TARGET NetCdfDialogLib PROPERTY FOLDER "DataExplorer")

Applications/DataExplorer/NetCdfDialog/NetCdfConfigureDialog.cpp

@@ -306,7 +306,7 @@ double NetCdfConfigureDialog::getResolution()
 
 void NetCdfConfigureDialog::createDataObject()
 {
-    auto* length = new long[_currentVar->num_dims()];
+    auto* length = new std::size_t[_currentVar->num_dims()];
     double originLon = 0, originLat = 0;
     double lastLon = 0, lastLat = 0;
     unsigned sizeLon = 0, sizeLat = 0;

Applications/DataExplorer/VtkVis/CMakeLists.txt

@@ -135,7 +135,7 @@ if(GEOTIFF_FOUND)
 endif() # GEOTIFF_FOUND
 
 target_link_libraries(VtkVis
-    PUBLIC BaseLib GeoLib MeshLib DataHolderLib QtBase
+    PUBLIC BaseLib GeoLib MeshLib DataHolderLib QtBase vtkIOImage
     PRIVATE MathLib ApplicationsFileIO Qt5::Gui logog
 )
 set_property(TARGET VtkVis PROPERTY FOLDER "DataExplorer")

Applications/DataExplorer/VtkVis/VisualizationWidgetBase.ui

@@ -535,7 +535,7 @@
     </layout>
    </item>
    <item>
-    <widget class="QVTKWidget2" name="vtkWidget" native="true">
+    <widget class="QVTKWidget" name="vtkWidget" native="true">
      <property name="sizePolicy">
       <sizepolicy hsizetype="MinimumExpanding" vsizetype="MinimumExpanding">
        <horstretch>0</horstretch>
@@ -548,9 +548,9 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>QVTKWidget2</class>
+   <class>QVTKWidget</class>
    <extends>QWidget</extends>
-   <header>QVTKWidget2.h</header>
+   <header>QVTKWidget.h</header>
   </customwidget>
  </customwidgets>
  <resources>

scripts/cmake/ConanSetup.cmake

@@ -18,13 +18,13 @@ include(${PROJECT_SOURCE_DIR}/scripts/cmake/conan/conan.cmake)
 set(CONAN_REQUIRES
     Boost/1.64.0@conan/stable
     Eigen3/3.2.9@bilke/stable
-    VTK/8.1.0@bilke/testing
+    VTK/8.1.0@bilke/stable
     CACHE INTERNAL ""
 )
 
 set(CONAN_OPTIONS
     Boost:header_only=True
-    Qt:xmlpatterns=True
+    Qt:qtxmlpatterns=True
     CACHE INTERNAL ""
 )
 
@@ -48,7 +48,7 @@ if(OGS_BUILD_GUI)
     set(CONAN_REQUIRES ${CONAN_REQUIRES}
         Shapelib/1.3.0@bilke/stable
         libgeotiff/1.4.2@bilke/stable
-        Qt/5.11@bincrafters/stable
+        Qt/5.11.0@bilke/stable
     )
     set(CONAN_OPTIONS ${CONAN_OPTIONS} VTK:qt=True)
 endif()

scripts/cmake/Find.cmake

@@ -66,7 +66,7 @@ include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
 
 include(VtkModules)
 #find_package(VTK COMPONENTS ${VTK_MODULES} REQUIRED)
-find_package(VTK 8.0.0 REQUIRED)
+find_package(VTK 8.1.0 REQUIRED)
 include(${VTK_USE_FILE})
 
 find_package(Eigen3 3.2.9 REQUIRED)