diff --git a/CMakeLists.txt b/CMakeLists.txt
index a944af1c..9d9d574e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,8 +61,7 @@ endif()
 # Injection of the GCC-specific compilation flags
 if(CMAKE_COMPILER_IS_GNUCXX)
     message(STATUS "GCC detected, adding compile flags")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99")
-    add_definitions("-Wall" "-Wextra" "-pedantic" "-Wno-variadic-macros" "-Wno-strict-aliasing" "-fPIC")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wno-variadic-macros -Wno-strict-aliasing -fPIC")
 endif()
 
 add_compile_definitions(QT5)
diff --git a/qdlt/qdltoptmanager.cpp b/qdlt/qdltoptmanager.cpp
index 89ab1c86..fd1d9fd9 100644
--- a/qdlt/qdltoptmanager.cpp
+++ b/qdlt/qdltoptmanager.cpp
@@ -105,6 +105,19 @@ void QDltOptManager::printUsage(const QString& helpText)
     qDebug() << "  dlt-viewer.exe -t -c output.txt input1.mf4 input2.mf4";
 }
 
+void QDltOptManager::freeWindowsConsole()
+{
+#if (WIN32 || WIN64)
+    HWND consoleWnd = GetConsoleWindow();
+    DWORD dwProcessId;
+    GetWindowThreadProcessId(consoleWnd, &dwProcessId);
+    if (GetCurrentProcessId() == dwProcessId)
+    {
+        FreeConsole();
+    }
+#endif
+}
+
 void QDltOptManager::parse(const QStringList& args)
 {
     m_parser.parse(args);
@@ -120,18 +133,26 @@ void QDltOptManager::parse(const QStringList& args)
     if (m_parser.optionNames().isEmpty() && m_parser.positionalArguments().size() == 1)
     {
         const QString& arg = m_parser.positionalArguments().at(0);
+        bool closeConsole = false;
         if(arg.endsWith(".dlp") || arg.endsWith(".DLP"))
         {
             projectFile = arg;
             project = true;
             qDebug()<< "Project filename:" << projectFile;
-            return;
+            closeConsole = true;
         }
         if (arg.endsWith(".dlt") || arg.endsWith(".DLT"))
         {
             const QString logFile = arg;
             logFiles += logFile;
             qDebug()<< "DLT filename:" << logFile;
+            closeConsole = true;
+        }
+
+        if(closeConsole)
+        {
+            // user launched the application with a double click on a dlt/project file: we do not need console
+            freeWindowsConsole();
             return;
         }
     }
@@ -246,19 +267,11 @@ void QDltOptManager::parse(const QStringList& args)
       * Unfortunateley Windows opens a console anyway.
       * So we have to close it in this case
      */
-    #if (WIN32)
-        if (!commandline_mode)
-        {
-            HWND consoleWnd = GetConsoleWindow();
-            DWORD dwProcessId;
-            GetWindowThreadProcessId(consoleWnd, &dwProcessId);
-            if (GetCurrentProcessId() == dwProcessId)
-            {
-                // user launched the application with a double click from explorer: we do not need console
-                FreeConsole();
-            }
-        }
-    #endif
+    if (!commandline_mode)
+    {
+        // user launched the application with a double click from explorer: we do not need console
+        freeWindowsConsole();
+    }
 }
 
 bool QDltOptManager::isProjectFile(){ return project;}
diff --git a/qdlt/qdltoptmanager.h b/qdlt/qdltoptmanager.h
index e1cb12d0..53dc9eae 100644
--- a/qdlt/qdltoptmanager.h
+++ b/qdlt/qdltoptmanager.h
@@ -48,6 +48,7 @@ class QDLT_EXPORT QDltOptManager
     void printUsage(const QString& helpText);
     void printVersion(QString appname);
     void parse(const QStringList& opt);
+    void freeWindowsConsole();
 
     bool isProjectFile();
     bool isTerminate();
diff --git a/scripts/windows/version.cmake b/scripts/windows/version.cmake
index 01efc4d0..dc3e61bf 100644
--- a/scripts/windows/version.cmake
+++ b/scripts/windows/version.cmake
@@ -62,10 +62,11 @@ execute_process(
     OUTPUT_STRIP_TRAILING_WHITESPACE
 )
 
-set(VS_VERSION ${MSVC_TOOLSET_VERSION})
-string(REPLACE "140" "msvc2015" VS_VERSION ${VS_VERSION})
-string(REPLACE "141" "msvc2017" VS_VERSION ${VS_VERSION})
-string(REPLACE "142" "msvc2019" VS_VERSION ${VS_VERSION})
-string(REPLACE "143" "msvc2022" VS_VERSION ${VS_VERSION})
-
+if(MSVC)
+    set(VS_VERSION ${MSVC_TOOLSET_VERSION})
+    string(REPLACE "140" "msvc2015" VS_VERSION ${VS_VERSION})
+    string(REPLACE "141" "msvc2017" VS_VERSION ${VS_VERSION})
+    string(REPLACE "142" "msvc2019" VS_VERSION ${VS_VERSION})
+    string(REPLACE "143" "msvc2022" VS_VERSION ${VS_VERSION})
+endif()
 set(DLT_VERSION_SUFFIX "STABLE-qt${DLT_QT_VERSION}-r${GIT_PATCH_VERSION}_${VS_VERSION}_${CMAKE_CXX_COMPILER_ARCHITECTURE_ID}")