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主机系统是ubuntu
树莓派用的是2015-11-21-raspbian-jessie 交叉工具链用的官方github上面的tools（github.com/raspberrypi/tools.git） Qt源码用的qt-everywhere-opensource-src-5.5.1 configure的参数用了 sudo ./configure -release -opengl es2 -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=~/rpi/tools/ARM-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf- -sysroot /mnt/raspberrypi2 -prefix /usr/local/Qt5Embedded 基本是官方官网提供的那些，因为路径没有设环境变量，所以直接打的地址 最后在make的过程中出现如下问题 /home/lyu/rpi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld.gold: error: cannot open /mnt/raspberrypi2/usr/lib/arm-linux-gnueabihf/libz.so: 没有那个文件或目录 /home/lyu/rpi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld.gold: error: cannot open /mnt/raspberrypi2/usr/lib/arm-linux-gnueabihf/libdl.so: 没有那个文件或目录 /home/lyu/rpi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld.gold: error: cannot open /mnt/raspberrypi2/usr/lib/arm-linux-gnueabihf/librt.so: 没有那个文件或目录 /home/lyu/rpi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld.gold: error: cannot open /mnt/raspberrypi2/usr/lib/arm-linux-gnueabihf/libm.so: 没有那个文件或目录 .obj/qlibrary_unix.o:qlibrary_unix.cpp:function qdlerror(): error: undefined reference to 'dlerror' .obj/qlibrary_unix.o:qlibrary_unix.cpp:function QLibraryPrivate::unload_sys(): error: undefined reference to 'dlclose' .obj/qlibrary_unix.o:qlibrary_unix.cpp:function qt_linux_find_symbol_sys(char const*): error: undefined reference to 'dlsym' .obj/qlibrary_unix.o:qlibrary_unix.cpp:function QLibraryPrivate::resolve_sys(char const*): error: undefined reference to 'dlsym' .obj/qlibrary_unix.o:qlibrary_unix.cpp:function QLibraryPrivate::load_sys(): error: undefined reference to 'dlopen' .obj/qbytearray.o:qbytearray.cpp:function qUncompress(unsigned char const*, int): error: undefined reference to 'uncompress' .obj/qbytearray.o:qbytearray.cpp:function qCompress(unsigned char const*, int, int): error: undefined reference to 'compress2' .obj/qdatetime.o:qdatetime.cpp:function fromIsoTimeString(QStringRef const&, Qt::DateFormat, bool*): error: undefined reference to 'pow' .obj/qdatetime.o:qdatetime.cpp:function fromIsoTimeString(QStringRef const&, Qt::DateFormat, bool*): error: undefined reference to 'floorf' .obj/qdatetime.o:qdatetime.cpp:function fromIsoTimeString(QStringRef const&, Qt::DateFormat, bool*): error: undefined reference to 'pow' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeCosineCurve(double): error: undefined reference to 'cos' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInOutSine(double): error: undefined reference to 'cos' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeSineCurve(double): error: undefined reference to 'sin' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeOutSine(double): error: undefined reference to 'sin' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeOutCurve(double): error: undefined reference to 'sin' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInOutCirc(double): error: undefined reference to 'sqrt' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInOutCirc(double): error: undefined reference to 'sqrt' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeOutCirc(double): error: undefined reference to 'sqrt' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInCirc(double): error: undefined reference to 'sqrt' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeOutInSine(double): error: undefined reference to 'cos' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeOutInSine(double): error: undefined reference to 'sin' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInOutExpo(double): error: undefined reference to 'pow' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInOutExpo(double): error: undefined reference to 'pow' .obj/qeasingcurve.o:qeasingcurve.cpp:function easeInSine(double): error: undefined reference to 'cos' .obj/qeasingcurve.o:qeasingcurve.cpp:function ElasticEase::value(double): error: undefined reference to 'asin' .obj/qeasingcurve.o:qeasingcurve.cpp:function ElasticEase::value(double): error: undefined reference to 'asin' .obj/qeasingcurve.o:qeasingcurve.cpp:function ElasticEase::value(double): error: undefined reference to 'asin' .obj/qeasingcurve.o:qeasingcurve.cpp:function ElasticEase::value(double): error: undefined reference to 'asin' .obj/qline.o:qline.cpp:function QLineF::angle() const: error: undefined reference to 'atan2' .obj/qline.o:qline.cpp:function QLineF::setAngle(double): error: undefined reference to 'sincos' .obj/qline.o:qline.cpp:function QLineF::fromPolar(double, double): error: undefined reference to 'sincos' .obj/qline.o:qline.cpp:function QLineF::angle(QLineF const&) const: error: undefined reference to 'acos' .obj/qlocale_tools.o:qlocale_tools.cpp:function qdtoa(double, int, int, int*, int*, char**, char**): error: undefined reference to 'feholdexcept' .obj/qlocale_tools.o:qlocale_tools.cpp:function qdtoa(double, int, int, int*, int*, char**, char**): error: undefined reference to 'fesetenv' .obj/qrect.o:qrect.cpp:function QRectF::toAlignedRect() const: error: undefined reference to 'floor' .obj/qrect.o:qrect.cpp:function QRectF::toAlignedRect() const: error: undefined reference to 'ceil' .obj/qrect.o:qrect.cpp:function QRectF::toAlignedRect() const: error: undefined reference to 'floor' .obj/qrect.o:qrect.cpp:function QRectF::toAlignedRect() const: error: undefined reference to 'ceil' .obj/qtimeline.o:qtimeline.cpp:function QTimeLine::frameForTime(int) const: error: undefined reference to 'ceil' collect2: error: ld returned 1 exit status Makefile:1213: recipe for target '../../lib/libQt5Core.so.5.5.1' failed make[2]: *** [../../lib/libQt5Core.so.5.5.1] Error 1 make[2]: Leaving directory '/home/lyu/qt5_for_arm/qt-everywhere-opensource-src-5.5.1/qtbase/src/corelib' Makefile:170: recipe for target 'sub-corelib-make_first' failed make[1]: *** [sub-corelib-make_first] Error 2 make[1]: Leaving directory '/home/lyu/qt5_for_arm/qt-everywhere-opensource-src-5.5.1/qtbase/src' Makefile:45: recipe for target 'sub-src-make_first' failed make: *** [sub-src-make_first] Error 2 在最上面的那个问题出现的没有那个文件或者目录最后找的时候找到了，查找相关资料怀疑是raspbian用的gcc和工具链的gcc版本不一致，但是不知道对不对，我查过树莓派的gcc版本是4.9.2。交叉工具链的gcc版本是4.8.3,。但是在之前直接交叉编译一些小文件的时候是可以做到的，在pc编译传到树莓派运行，但是现在在交叉编译qt5的时候出现了问题。不知道有没有大神指教，才开始弄得这个东西，好多都还是不懂。 
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2个回答
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我还没搞定QT5,不知道树莓派运行QT程序是否流畅
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2016-3-13 13:57:46
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才看到，小代码交叉编译以后单运行的时候还可以，但是如果说再树莓派上直接运行的QT5来编译代码，速度真的不能看。 |
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