diff --git a/CI/ci-linux-build.sh b/CI/ci-linux-build.sh
index eb64b64d..8a3a5fca 100755
--- a/CI/ci-linux-build.sh
+++ b/CI/ci-linux-build.sh
@@ -58,6 +58,9 @@ else
   # build unittests
   make  $MAKE_OPTIONS unittests
 
+  ldd Unittests/unittests
+
+
   # Creating System Library folder to contain all dependend libraries to run OpenFlipper
   if [ ! -d systemlib ]; then
     echo "Creating systemlib folder"
@@ -72,4 +75,4 @@ else
   fi
 fi
 
-cd ..
\ No newline at end of file
+cd ..
diff --git a/CI/ci-linux-test.sh b/CI/ci-linux-test.sh
index 063e3781..0fedf3ae 100755
--- a/CI/ci-linux-test.sh
+++ b/CI/ci-linux-test.sh
@@ -60,6 +60,8 @@ echo -e "${NC}"
 
 cd Unittests
 
+ldd ./unittests
+
 #execute tests
 ./unittests --gtest_color=yes --gtest_output=xml:./report.xml
 
diff --git a/Doc/changelog.docu b/Doc/changelog.docu
index 1b5e0bf2..385679c7 100644
--- a/Doc/changelog.docu
+++ b/Doc/changelog.docu
@@ -33,6 +33,7 @@
 <li>OM Writer: Removed debug output</li>
 <li>OM Writer/Reader: Added support for (re)storing properties of type vector<T></li>
 <li>OM Reader: Properties can now be restored from files without the need to create the properties beforehand. Custom types need to be registered for this to work using the OM_REGISTER_PROPERTY_TYPE macro.</li>
+<li>PLY writer: Added option to choose if we want to write texture coordinates as uv or st (Thanks to Ossi Saukko from Centria Research and Development for the patch)</li>
 </ul>
 
 <b>Tools</b>
diff --git a/cmake-library b/cmake-library
index f235866f..44f85cf6 160000
--- a/cmake-library
+++ b/cmake-library
@@ -1 +1 @@
-Subproject commit f235866ffe218fc6e440de27622d6c8a1e1210a5
+Subproject commit 44f85cf6ddf7d58676795a0bd3c258bbd5f56700
diff --git a/src/OpenMesh/Core/IO/IOManager.cc b/src/OpenMesh/Core/IO/IOManager.cc
index 8b3a4193..bdc77859 100644
--- a/src/OpenMesh/Core/IO/IOManager.cc
+++ b/src/OpenMesh/Core/IO/IOManager.cc
@@ -241,13 +241,13 @@ find_writer(const std::string& _format)
 {
   using std::string;
 
-  string::size_type dot = _format.rfind('.');
+  string::size_type dotpos = _format.rfind('.');
 
   string ext;
-  if (dot == string::npos)
+  if (dotpos == string::npos)
     ext = _format;
   else
-    ext = _format.substr(dot+1,_format.length()-(dot+1));
+    ext = _format.substr(dotpos+1,_format.length()-(dotpos+1));
 
   std::set<BaseWriter*>::const_iterator it     = writer_modules_.begin();
   std::set<BaseWriter*>::const_iterator it_end = writer_modules_.end();
diff --git a/src/OpenMesh/Core/IO/Options.hh b/src/OpenMesh/Core/IO/Options.hh
index 2e642180..347098af 100644
--- a/src/OpenMesh/Core/IO/Options.hh
+++ b/src/OpenMesh/Core/IO/Options.hh
@@ -111,7 +111,8 @@ public:
       ColorAlpha     = 0x0800, ///< Has (r) / store (w) alpha values for colors
       ColorFloat     = 0x1000, ///< Has (r) / store (w) float values for colors (currently only implemented for PLY and OFF files)
       Custom         = 0x2000, ///< Has (r)             custom properties (currently only implemented in PLY Reader ASCII version)
-      Status         = 0x4000  ///< Has (r) / store (w) status properties
+      Status         = 0x4000, ///< Has (r) / store (w) status properties
+      TexCoordST     = 0x8000  ///< Write texture coordinates as ST instead of UV
   };
 
 public:
@@ -212,6 +213,7 @@ public:
   bool face_has_status()     const { return check(Status); }
   bool color_has_alpha()     const { return check(ColorAlpha); }
   bool color_is_float()      const { return check(ColorFloat); }
+  bool use_st_coordinates()  const { return check(TexCoordST); }
 
 
   /// Returns true if _rhs has the same options enabled.
diff --git a/src/OpenMesh/Core/IO/writer/OBJWriter.cc b/src/OpenMesh/Core/IO/writer/OBJWriter.cc
index 681fbfb1..b83dde24 100644
--- a/src/OpenMesh/Core/IO/writer/OBJWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OBJWriter.cc
@@ -327,7 +327,7 @@ write(std::ostream& _out, BaseExporter& _be, Options _opt, std::streamsize _prec
   {
 
     if (useMatrial &&  _opt.check(Options::FaceColor) ){
-      size_t material = std::numeric_limits<std::size_t>::max();
+      size_t material;
 
       //color with alpha
       if ( _opt.color_has_alpha() ){
diff --git a/src/OpenMesh/Core/IO/writer/PLYWriter.cc b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
index 49db3ec6..dc9e864a 100644
--- a/src/OpenMesh/Core/IO/writer/PLYWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
@@ -278,8 +278,13 @@ void _PLYWriter_::write_header(std::ostream& _out, BaseExporter& _be, Options& _
   }
 
   if ( _opt.vertex_has_texcoord() ){
-    _out << "property float u" << '\n';
-    _out << "property float v" << '\n';
+    if ( _opt.use_st_coordinates() ){
+      _out << "property float s" << '\n';
+      _out << "property float t" << '\n';
+    } else {
+      _out << "property float u" << '\n';
+      _out << "property float v" << '\n';
+    }
   }
 
   if ( _opt.vertex_has_color() ){