diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6a938f0d9..bfa30e96a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -135,11 +135,11 @@ IF ( WIN32 )
   # Use subset of Windows.h
   ADD_DEFINITIONS( -DWIN32_LEAN_AND_MEAN )
 
-  OPTION ( ASSIMP_BUILD_ASSIMP_VIEW
-    "If the Assimp view tool is built. (requires DirectX)"
-    OFF )
-
   IF(MSVC)
+    OPTION ( ASSIMP_BUILD_ASSIMP_VIEW
+      "If the Assimp view tool is built. (requires DirectX)"
+      OFF )
+
     OPTION( ASSIMP_INSTALL_PDB
       "Install MSVC debug files."
       ON )
diff --git a/cmake-modules/FindIrrXML.cmake b/cmake-modules/FindIrrXML.cmake
deleted file mode 100644
index 5434e0b86..000000000
--- a/cmake-modules/FindIrrXML.cmake
+++ /dev/null
@@ -1,17 +0,0 @@
-# Find IrrXMl from irrlicht project
-#
-# Find LibIrrXML headers and library
-#
-#   IRRXML_FOUND          - IrrXML found
-#   IRRXML_INCLUDE_DIR    - Headers location
-#   IRRXML_LIBRARY        - IrrXML main library
-
-find_path(IRRXML_INCLUDE_DIR irrXML.h
-    PATH_SUFFIXES include/irrlicht include/irrxml)
-find_library(IRRXML_LIBRARY IrrXML)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(IrrXML REQUIRED_VARS IRRXML_INCLUDE_DIR IRRXML_LIBRARY)
-
-
-mark_as_advanced(IRRXML_INCLUDE_DIR IRRXML_LIBRARY)
diff --git a/code/AssetLib/FBX/FBXParser.cpp b/code/AssetLib/FBX/FBXParser.cpp
index 61e53c2d0..582940363 100644
--- a/code/AssetLib/FBX/FBXParser.cpp
+++ b/code/AssetLib/FBX/FBXParser.cpp
@@ -192,6 +192,10 @@ Scope::Scope(Parser& parser,bool topLevel)
         }
 
         const std::string& str = n->StringContents();
+        if (str.empty()) {
+            ParseError("unexpected content: empty string.");
+        }
+        
         elements.insert(ElementMap::value_type(str,new_Element(*n,parser)));
 
         // Element() should stop at the next Key token (or right after a Close token)
diff --git a/code/Common/RemoveComments.cpp b/code/Common/RemoveComments.cpp
index d1c2ac391..e1ba99761 100644
--- a/code/Common/RemoveComments.cpp
+++ b/code/Common/RemoveComments.cpp
@@ -59,13 +59,16 @@ void CommentRemover::RemoveLineComments(const char* szComment,
     ai_assert(nullptr != szBuffer);
     ai_assert(*szComment);
 
-    const size_t len = strlen(szComment);
+    size_t len = strlen(szComment);
+    const size_t lenBuffer = strlen(szBuffer);
+    if (len > lenBuffer) {
+        len = lenBuffer;
+    }
     while (*szBuffer)   {
 
         // skip over quotes
         if (*szBuffer == '\"' || *szBuffer == '\'')
             while (*szBuffer++ && *szBuffer != '\"' && *szBuffer != '\'');
-
         if (!strncmp(szBuffer,szComment,len)) {
             while (!IsLineEnd(*szBuffer))
                 *szBuffer++ = chReplacement;