Introduced compile-time option to disable use of C++0x

This is in order to still support older compilers, in particular GCC 4.2.1,
so that Mana may be compiled for Maemo 5.

Reviewed-by: Yohann Ferreira

6 files changed, 21 insertions, 4 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3710a027..2e06d02d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,6 +31,7 @@ FIND_PACKAGE(Gettext)
 OPTION(WITH_OPENGL "Enable OpenGL support" ON)
 OPTION(ENABLE_NLS "Enable building of tranlations" ON)
 OPTION(ENABLE_MANASERV "Enable Manaserv support" OFF)
+OPTION(ENABLE_CPP0X "Enable use of C++0x features" ON)
 
 IF (WIN32)
     SET(PKG_DATADIR ".")
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 977524e9..e0a42478 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,7 +34,11 @@ ENDIF()
 SET(FLAGS "-DPACKAGE_VERSION=\\\"${VERSION}\\\"")
 SET(FLAGS "${FLAGS} -DPKG_DATADIR=\\\"${PKG_DATADIR}/\\\"")
 SET(FLAGS "${FLAGS} -DLOCALEDIR=\\\"${LOCALEDIR}/\\\"")
-SET(FLAGS "${FLAGS} -std=c++0x")
+IF (ENABLE_CPP0X)
+    SET(FLAGS "${FLAGS} -std=c++0x -DENABLE_CPP0X=1")
+ELSE()
+    INCLUDE_DIRECTORIES("cpp0x_compat")
+ENDIF()
 
 IF (ENABLE_NLS)
     SET(FLAGS "${FLAGS} -DENABLE_NLS=1")
diff --git a/src/cpp0x_compat/cstdint b/src/cpp0x_compat/cstdint
new file mode 100644
index 00000000..d8d71d9d
--- /dev/null
+++ b/src/cpp0x_compat/cstdint
@@ -0,0 +1,7 @@
+/*
+ * Compatibility header used when the compiler doesn't support C++0x.
+ *
+ * It doesn't seem necessary for it to contain anything, at least GCC 4.2.1
+ * compiles Mana fine so it apparently understands types like uint16_t by
+ * default.
+ */
diff --git a/src/gui/serverdialog.cpp b/src/gui/serverdialog.cpp
index f9fcb597..49de7f38 100644
--- a/src/gui/serverdialog.cpp
+++ b/src/gui/serverdialog.cpp
@@ -90,13 +90,13 @@ ServersListModel::ServersListModel(ServerInfos *servers, ServerDialog *parent):
 
 int ServersListModel::getNumberOfElements()
 {
-    MutexLocker lock = mParent->lock();
+    MutexLocker lock(mParent->getMutex());
     return mServers->size();
 }
 
 std::string ServersListModel::getElementAt(int elementIndex)
 {
-    MutexLocker lock = mParent->lock();
+    MutexLocker lock(mParent->getMutex());
     const ServerInfo &server = mServers->at(elementIndex);
     std::string myServer;
     myServer += server.hostname;
diff --git a/src/gui/serverdialog.h b/src/gui/serverdialog.h
index eedf5134..cf9e62e7 100644
--- a/src/gui/serverdialog.h
+++ b/src/gui/serverdialog.h
@@ -113,7 +113,7 @@ class ServerDialog : public Window,
 
     protected:
         friend class ServersListModel;
-        MutexLocker lock() { return MutexLocker(&mMutex); }
+        Mutex *getMutex() { return &mMutex; }
 
         friend class CustomServerDialog;
         /**
diff --git a/src/utils/mutex.h b/src/utils/mutex.h
index 26ad754e..f7f26233 100644
--- a/src/utils/mutex.h
+++ b/src/utils/mutex.h
@@ -53,7 +53,9 @@ class MutexLocker
 {
 public:
     MutexLocker(Mutex *mutex);
+#ifdef ENABLE_CPP0X
     MutexLocker(MutexLocker&&);
+#endif
     ~MutexLocker();
 
 private:
@@ -93,11 +95,14 @@ inline MutexLocker::MutexLocker(Mutex *mutex):
     mMutex->lock();
 }
 
+#ifdef ENABLE_CPP0X
 inline MutexLocker::MutexLocker(MutexLocker&& rhs):
     mMutex(rhs.mMutex)
 {
     rhs.mMutex = NULL;
 }
+#endif
+
 inline MutexLocker::~MutexLocker()
 {
     if (mMutex)