Question

我正在尝试从源代码编译Qt，但在灌输过程中出现错误：

In file included from ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastAllocBase.h:84,
                 from ../3rdparty/javascriptcore/JavaScriptCore/wtf/HashCountedSet.h:25,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.h:27,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSCell.h:26,
                 from ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSAPIValueWrapper.h:28,
                 from ../3rdparty/javascriptcore/JavaScriptCore/API/APICast.h:29,
                 from ../3rdparty/javascriptcore/JavaScriptCore/API/JSBase.cpp:30:
../3rdparty/javascriptcore/JavaScriptCore/wtf/TypeTraits.h:173:69: error: ‘std::tr1’ has not been declared
     template<typename T> struct HasTrivialConstructor : public std::tr1::has_trivial_constructor<T> { };

这是编译器问题吗？

Answer 1

您的答案是here：

使用默认启用的MinGW / gcc时，会出现此问题   C ++ 11功能，例如较新的nuwen MinGW构建。

直到JavaScriptCore被更新以处理gcc的标准C ++ 11   支持，必须在未启用C ++ 11的情况下进行构建。

将mkspecs \ win32-g ++ \ qmake.conf更改为具有以下行：

QMAKE_CXXFLAGS = $$ QMAKE_CFLAGS -std = gnu ++ 98

允许JavaScriptCore构建。

从源代码安装Qt，版本4.8.6

1 个答案: