学步园

看诺鸡鸭的网站说4.7版本出来了，而且叫做faster ,better performance，赶紧上去下来尝尝鲜：

版本：qt-everywhere-opensource-src-4.7.0.tar.gz

我的arm gcc是arm_v5t_le 3.4.3，出了点错，搜索一下，幸亏没遇到网上达人那么多的错，就一个：

Error: register or shift expression expected – `orr r3,r2,lsl#16' 

完整的是：

../../include/QtCore/../../../Qt4.6.0Source/qt-everywhere-commercial-src-4.6.0/src/corelib/tools/qhash.h: In member function `typename QHash<Key, T>::Node** QHash<Key, T>::findNode(const Key&, uint*) const [with Key = QFontEngine::FaceId, T = QFreetypeFace*]':<br /> ../../include/QtCore/../../../Qt4.6.0Source/qt-everywhere-commercial-src-4.6.0/src/corelib/tools/qhash.h:616: instantiated from `const T QHash<Key, T>::value(const Key&, const T&) const [with Key = QFontEngine::FaceId, T = QFreetypeFace*]'<br /> /home/Qt_lib_optimization/Qt4.6.0Source/qt-everywhere-commercial-src-4.6.0/src/gui/text/qfontengine_ft.cpp:207: instantiated from here<br /> ../../include/QtCore/../../../Qt4.6.0Source/qt-everywhere-commercial-src-4.6.0/src/corelib/tools/qhash.h:883: warning: dereferencing type-punned pointer will break strict-aliasing rules<br /> {standard input}: Assembler messages: {standard input}:713: Error: register or shift expression expected – `orr r3,r2,lsl#16'<br /> {standard input}:724: Error: register or shift expression expected – `orr r2,r3,lsl#16' {standard input}:7234: Error: register or shift expression expected – `orr r3,r1,lsl#16'<br /> {standard input}:7245: Error: register or shift expression expected – `orr r1,r0,lsl#16'<br /> make[1]: *** [.obj/release-static-emb-arm/qfontengine_ft.o] Error 1<br /> make[1]: Leaving directory `/home/Qt_lib_optimization/Qt4.6.0Compile/src/gui'<br /> make: *** [sub-gui-make_default-ordered] Error 2<br /> #  

这是个BUG，QT里面应该先判断编译器版本的，结果人家找出来放到官网了，还好他们给出了解决方案：

http://bugreports.qt.nokia.com/browse/QTBUG-6521

To fix this issue patch /src/3rdparty/freetype/include/freetype/config/ftconfig.h Line 330.

• "orr %0, %2, lsl #16/n/t" /* %0 |= %2 << 16 */
  + "orr %0, %0, %2, lsl #16/n/t" /* %0 |= %2 << 16 */

他的意思是加多一个%0在%2前面，我试了一下，好使！

不知道configure的时候加个ARCH定义是否会解决掉？还没试~~