Linux compile fixes

src/OpenVDSHandle.h

@@ -67,7 +67,7 @@ struct VDSHandle
   std::vector<VolumeDataLayer::ProduceStatus>
                     ProduceStatuses;
 
-  MetadataContainer MetadataContainer;
+  class MetadataContainer MetadataContainer;
 
   std::unique_ptr<VolumeDataLayoutImpl>
                     VolumeDataLayout;
@@ -75,7 +75,7 @@ struct VDSHandle
                     DataAccessManager;
   std::unique_ptr<IOManager>
                     IoManager;
-  LayerMetadataContainer
+  class LayerMetadataContainer
                     LayerMetadataContainer;
   std::unique_ptr<VolumeDataRequestProcessor>
                     RequestProcessor;

src/SEG-Y/SEGY.h

@@ -44,7 +44,7 @@ enum class Endianness
 struct HeaderField
 {
   int        ByteLocation;
-  FieldWidth FieldWidth;
+  enum FieldWidth FieldWidth;
 
   HeaderField() = default;
   HeaderField(int byteLocation, enum FieldWidth fieldWidth) : ByteLocation(byteLocation), FieldWidth(fieldWidth) {}

src/VDS/DataBlock.h

@@ -37,7 +37,7 @@ struct DataBlock
 {
   VolumeDataChannelDescriptor::Format Format;
   VolumeDataChannelDescriptor::Components Components;
-  Dimensionality Dimensionality;
+  enum Dimensionality Dimensionality;
   int32_t Size[DataStoreDimensionality_Max];
   int32_t AllocatedSize[DataStoreDimensionality_Max];
   int32_t Pitch[DataStoreDimensionality_Max];

tests/OpenVDS/RequestVolumeSamples.cpp

@@ -27,7 +27,7 @@
 
 #include <gtest/gtest.h>
 
-static inline void GenerateRandomPosition(std::mt19937 &gen, const std::vector<std::uniform_real_distribution<float>> dimensionDistribution, int dimension, float (&pos)[OpenVDS::Dimensionality_Max])
+static inline void GenerateRandomPosition(std::mt19937 &gen, std::vector<std::uniform_real_distribution<float>> &dimensionDistribution, int dimension, float (&pos)[OpenVDS::Dimensionality_Max])
 {
   for (int i = 0; i < dimension; i++)
   {