Add two new compiler feature tests

Sources/Plasma/CoreLib/HeadSpin.h

@@ -130,6 +130,22 @@ typedef int32_t   hsError;
 #   define hsDeprecated(message)
 #endif
 
+#ifdef HAVE_OVERRIDE
+#   define HS_OVERRIDE  override
+#   define HS_FINAL     final
+#else
+#   define HS_OVERRIDE
+#   define HS_FINAL
+#endif
+
+#ifdef HAVE_NOEXCEPT
+#   define HS_NOEXCEPT          noexcept
+#   define HS_NOEXCEPT_IF(cond) noexcept(cond)
+#else
+#   define HS_NOEXCEPT          throw()
+#   define HS_NOEXCEPT_IF(cond)
+#endif
+
 //======================================
 // Endian swap funcitions
 //======================================

Sources/Plasma/PubUtilLib/plGImage/plDynamicTextMap.h

@@ -130,9 +130,9 @@ class plDynamicTextMap : public plMipmap
 
         virtual uint8_t   GetNumLevels( void ) const { return 1; }
 
-        void        Colorize() override { }
-        plMipmap    *Clone() const override;
-        void        CopyFrom(const plMipmap *source) override;
+        void        Colorize() HS_OVERRIDE { }
+        plMipmap    *Clone() const HS_OVERRIDE;
+        void        CopyFrom(const plMipmap *source) HS_OVERRIDE;
 
 
         /// Operations to perform on the text block

Sources/Plasma/PubUtilLib/plNetClient/plNetClientMgr.h

@@ -237,7 +237,7 @@ private:
     int ISendGameMessage(plMessage* msg);
     void IDisableNet ();
 
-    void ICreateStatusLog() const override;
+    void ICreateStatusLog() const HS_OVERRIDE;
 
 public:
     plNetClientMgr();
@@ -265,7 +265,7 @@ public:
     void SendApplyAvatarCustomizationsMsg(const plKey msgReceiver, bool netPropagate=true, bool localPropagate=true);
 
     // plLoggable
-    bool Log(const plString& str) const override;
+    bool Log(const plString& str) const HS_OVERRIDE;
 
     // setters
     void SetIniAuthServer(const char * value)  { fIniAuthServer=value;}

Sources/Plasma/PubUtilLib/plStatusLog/plStatusLog.h

@@ -159,7 +159,7 @@ class plStatusLog : public plLog
 
         ~plStatusLog();
 
-        bool AddLine(const plString& line) override;
+        bool AddLine(const plString& line) HS_OVERRIDE;
 
         bool    AddLine( const char *line, uint32_t color = kWhite );
 

Sources/Tools/plFontConverter/plFontConverter.cpp

@@ -350,12 +350,12 @@ class plMyBDFCallback : public plBDFConvertCallback
 public:
     plMyBDFCallback(QWidget *parent) : fProgress(parent) { }
 
-    virtual void NumChars(uint16_t chars) override
+    void NumChars(uint16_t chars) HS_OVERRIDE
     {
         fProgress.SetRange(chars);
     }
 
-    virtual void CharDone() override
+    void CharDone() HS_OVERRIDE
     {
         fPoint++;
         fProgress.SetValue(fPoint);
@@ -498,7 +498,7 @@ class NumListValidator : public QValidator
 public:
     NumListValidator(QObject *parent = nullptr) : QValidator(parent) { }
 
-    virtual State validate(QString &input, int &pos) const override
+    State validate(QString &input, int &pos) const HS_OVERRIDE
     {
         for (int ch = 0; ch < input.size(); ++ch)
         {

Sources/Tools/plLocalizationEditor/plAddDlgs.cpp

@@ -59,7 +59,7 @@ class AlphaNumericValidator : public QValidator
 public:
     AlphaNumericValidator(QObject *parent = nullptr) : QValidator(parent) { }
 
-    virtual State validate(QString &input, int &pos) const override
+    State validate(QString &input, int &pos) const HS_OVERRIDE
     {
         for (int ch = 0; ch < input.size(); ++ch)
         {

Sources/Tools/plResBrowser/plResBrowser.h

@@ -43,6 +43,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #define _plResBrowser_h
 
 #include <QMainWindow>
+#include "HeadSpin.h"
 
 class plResBrowser : public QMainWindow
 {
@@ -55,8 +56,8 @@ public:
     void SetWindowTitle(const QString &title);
 
 protected:
-    virtual void dragEnterEvent(QDragEnterEvent *event) override;
-    virtual void dropEvent(QDropEvent *event) override;
+    void dragEnterEvent(QDragEnterEvent *event) HS_OVERRIDE;
+    void dropEvent(QDropEvent *event) HS_OVERRIDE;
 
 private slots:
     void OpenFile();

cmake/CompilerChecks.cmake

@@ -40,8 +40,7 @@ endif()
 
 # Check for CPUID headers
 try_compile(HAVE_CPUID ${PROJECT_BINARY_DIR}
-            ${PROJECT_SOURCE_DIR}/cmake/check_cpuid.cpp
-            OUTPUT_VARIABLE OUTPUT)
+            ${PROJECT_SOURCE_DIR}/cmake/check_cpuid.cpp)
 if(HAVE_CPUID)
     message("CPUID header found -- using hardware math acceleration when available")
 else()
@@ -51,17 +50,22 @@ endif()
 # Look for a supported "deprecated" attribute specifier.
 try_compile(HAVE_CXX14_DEPRECATED_ATTR ${PROJECT_BINARY_DIR}
             ${PROJECT_SOURCE_DIR}/cmake/check_deprecated_attribute.cpp
-            COMPILE_DEFINITIONS -DTRY_ATTRIBUTE
-            OUTPUT_VARIABLE OUTPUT)
+            COMPILE_DEFINITIONS -DTRY_ATTRIBUTE)
 try_compile(HAVE_GCC_DEPRECATED_ATTR ${PROJECT_BINARY_DIR}
             ${PROJECT_SOURCE_DIR}/cmake/check_deprecated_attribute.cpp
-            COMPILE_DEFINITIONS -DTRY_GCC_ATTR
-            OUTPUT_VARIABLE OUTPUT)
+            COMPILE_DEFINITIONS -DTRY_GCC_ATTR)
 
 # Look for C++11 constexpr support
 try_compile(HAVE_CONSTEXPR ${PROJECT_BINARY_DIR}
-            ${PROJECT_SOURCE_DIR}/cmake/check_constexpr.cpp
-            OUTPUT_VARIABLE OUTPUT)
+            ${PROJECT_SOURCE_DIR}/cmake/check_constexpr.cpp)
+
+# Look for C++11 override/final specifiers
+try_compile(HAVE_OVERRIDE ${PROJECT_BINARY_DIR}
+            ${PROJECT_SOURCE_DIR}/cmake/check_override.cpp)
+
+# Look for C++11 noexcept specifier
+try_compile(HAVE_NOEXCEPT ${PROJECT_BINARY_DIR}
+            ${PROJECT_SOURCE_DIR}/cmake/check_noexcept.cpp)
 
 configure_file(${PROJECT_SOURCE_DIR}/cmake/hsCompilerSpecific.h.cmake
                ${PROJECT_BINARY_DIR}/hsCompilerSpecific.h)

cmake/check_noexcept.cpp

@@ -0,0 +1,7 @@
+void doesnt_throw() noexcept { }
+
+int main(int, char **)
+{
+    doesnt_throw();
+    return 0;
+}

cmake/check_override.cpp

@@ -0,0 +1,26 @@
+class Base
+{
+public:
+    virtual ~Base() { }
+    virtual void virtual_function() = 0;
+};
+
+class Override : public Base
+{
+public:
+    void virtual_function() override { }
+};
+
+class Final : public Override
+{
+public:
+    void virtual_function() final { }
+};
+
+int main(int, char **)
+{
+    Final klass;
+    klass.virtual_function();
+
+    return 0;
+}

cmake/hsCompilerSpecific.h.cmake

@@ -52,5 +52,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #cmakedefine HAVE_GCC_DEPRECATED_ATTR
 
 #cmakedefine HAVE_CONSTEXPR
+#cmakedefine HAVE_OVERRIDE
+#cmakedefine HAVE_NOEXCEPT
 
 #endif