remove useless qt_version defines

src/CMakeLists.txt

@@ -17,13 +17,7 @@ if(WIN32)
 endif(WIN32)
 
 # Activate fast QString concatenation
-if (QT_VERSION_MINOR GREATER 5)
-  if (QT_VERSION_MINOR GREATER 7)
-    add_definitions(-DQT_USE_QSTRINGBUILDER)
-  else(QT_VERSION_MINOR GREATER 7)
-    add_definitions(-DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS)
-  endif(QT_VERSION_MINOR GREATER 7)
-endif(QT_VERSION_MINOR GREATER 5)
+add_definitions(-DQT_USE_QSTRINGBUILDER)
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 add_definitions(-DBOOST_BIND_NO_PLACEHOLDERS)
 

src/core/utilities.cpp

@@ -693,16 +693,12 @@ bool IsLaptop() {
 }
 
 QString SystemLanguageName() {
-#if QT_VERSION >= 0x040800
   QString system_language = QLocale::system().uiLanguages().empty()
                                 ? QLocale::system().name()
                                 : QLocale::system().uiLanguages().first();
   // uiLanguages returns strings with "-" as separators for language/region;
   // however QTranslator needs "_" separators
   system_language.replace("-", "_");
-#else
-  QString system_language = QLocale::system().name();
-#endif
 
   return system_language;
 }

src/internet/lastfm/lastfmservice.cpp

@@ -28,14 +28,7 @@
 // some functions in their includes files, which aren't compatible with
 // QStringBuilder, we undef it here
 #include <QtGlobal>
-#if QT_VERSION >= 0x040600
-#if QT_VERSION >= 0x040800
 #undef QT_USE_QSTRINGBUILDER
-#else
-#undef QT_USE_FAST_CONCATENATION
-#undef QT_USE_FAST_OPERATOR_PLUS
-#endif  // QT_VERSION >= 0x040800
-#endif  // QT_VERSION >= 0x040600
 
 #include "lastfmservice.h"
 

src/ui/behavioursettingspage.cpp

@@ -70,12 +70,10 @@ BehaviourSettingsPage::BehaviourSettingsPage(SettingsDialog* dialog)
         .replace("_TW", "_Hant_TW");
     QString language_name =
         QLocale::languageToString(QLocale(lookup_code).language());
-#if QT_VERSION >= 0x040800
     QString native_name = QLocale(lookup_code).nativeLanguageName();
     if (!native_name.isEmpty()) {
       language_name = native_name;
     }
-#endif
     QString name = QString("%1 (%2)").arg(language_name, code);
 
     language_map_[name] = code;

src/ui/iconloader.cpp

@@ -33,11 +33,9 @@ QIcon IconLoader::Load(const QString& name) {
 
   if (name.isEmpty()) return ret;
 
-#if QT_VERSION >= 0x040600
   // Try to load it from the theme initially
   ret = QIcon::fromTheme(name);
   if (!ret.isNull()) return ret;
-#endif
 
   // Otherwise use our fallback theme
   const QString path(":/icons/%1x%2/%3.png");