diff --git a/Sources/Plasma/CoreLib/hsTemplates.h b/Sources/Plasma/CoreLib/hsTemplates.h
index f5f0ffe4..7d975eea 100644
--- a/Sources/Plasma/CoreLib/hsTemplates.h
+++ b/Sources/Plasma/CoreLib/hsTemplates.h
@@ -47,6 +47,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "hsRefCnt.h"
 
 #include <cstdarg>
+#include <algorithm>
 
 
 #ifdef HS_DEBUGGING
diff --git a/Sources/Plasma/NucleusLib/pnUtils/pnUtArray.h b/Sources/Plasma/NucleusLib/pnUtils/pnUtArray.h
index 0d4537b4..6d7fea92 100644
--- a/Sources/Plasma/NucleusLib/pnUtils/pnUtArray.h
+++ b/Sources/Plasma/NucleusLib/pnUtils/pnUtArray.h
@@ -740,25 +740,25 @@ public:
 //===========================================================================
 template<class T, class C>
 TArray<T,C>::TArray () : TFArray<T,C>() {
-    m_chunkSize = std::max(1u, 256 / sizeof(T));
+    m_chunkSize = std::max(size_t(1), 256 / sizeof(T));
 }
 
 //===========================================================================
 template<class T, class C>
 TArray<T,C>::TArray (const char file[], int line) : TFArray<T,C>(file, line) {
-    m_chunkSize = std::max(1u, 256 / sizeof(T));
+    m_chunkSize = std::max(size_t(1), 256 / sizeof(T));
 }
 
 //===========================================================================
 template<class T, class C>
 TArray<T,C>::TArray (unsigned count) : TFArray<T,C>(count) {
-    m_chunkSize = std::max(1u, 256 / sizeof(T));
+    m_chunkSize = std::max(size_t(1), 256 / sizeof(T));
 }
 
 //===========================================================================
 template<class T, class C>
 TArray<T,C>::TArray (const T * source, unsigned count) : TFArray<T,C>(source, count) {
-    m_chunkSize = std::max(1u, 256 / sizeof(T));
+    m_chunkSize = std::max(size_t(1), 256 / sizeof(T));
 }
 
 //===========================================================================
diff --git a/Sources/Plasma/PubUtilLib/plFile/plSecureStream.cpp b/Sources/Plasma/PubUtilLib/plFile/plSecureStream.cpp
index b3dc5622..3aa975c4 100644
--- a/Sources/Plasma/PubUtilLib/plFile/plSecureStream.cpp
+++ b/Sources/Plasma/PubUtilLib/plFile/plSecureStream.cpp
@@ -721,7 +721,7 @@ bool plSecureStream::GetSecureEncryptionKey(const plFileName& filename, uint32_t
     }
 
     // file doesn't exist, use default key
-    unsigned memSize = std::min(length, arrsize(plSecureStream::kDefaultKey));
+    unsigned memSize = std::min(size_t(length), arrsize(plSecureStream::kDefaultKey));
     memSize *= sizeof(uint32_t);
     memcpy(key, plSecureStream::kDefaultKey, memSize);