Question

我在Ubuntu 10.10和OpenCV2.2上使用这个图书馆,它的工作效果非常好。比0.9.3版本要好得多。现在我正在更新我的系统,我仍然想使用 libdecodqr 0.9.4, 但我有一个编译错误:

galois.cpp: In member function ‘Galois::Polynomial* Galois::Polynomial::_lu(Galois::Polynomial)’:
galois.cpp:400:48: error: taking address of temporary [-fpermissive]
galois.cpp:403:65: error: taking address of temporary [-fpermissive]
galois.cpp: In member function ‘Galois::Polynomial Galois::Polynomial::solve(Galois::Polynomial)’:
galois.cpp:458:69: error: taking address of temporary [-fpermissive]
galois.cpp:464:56: error: taking address of temporary [-fpermissive]
galois.cpp:466:54: error: taking address of temporary [-fpermissive]
galois.cpp: In member function ‘int Galois::BCH::decode(int)’:
galois.cpp:565:56: error: taking address of temporary [-fpermissive]
galois.cpp:567:59: error: taking address of temporary [-fpermissive]
galois.cpp: In member function ‘Galois::Nomial Galois::BCH::_error_syndrome(int)’:
galois.cpp:592:44: error: taking address of temporary [-fpermissive]
make[1]: *** [galois.lo] Error 1
make[1]: Leaving directory `/home/xxx/Downloads/libdecodeqr-0.9.4/libdecodeqr 
make: *** [all-recursive] Error 1

我在 Ubuntu 12.04 和 OpenCV 2. 4 上。我安装了像./ configure make 这样的螺旋桨。我能做些什么来编译这个?

谢谢

Answer 1

问题在于新的gcc编译器在一个错误的"临时地址" 而不是警告

构建 libdecodeqr, 以下列方式进行编译 :

sudo make CXXFLAGS+=-fpermissive

在此之后,显然:

sudo make install
sudo ldconfig

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